CN106923680A - A kind of pure water Drinking fountain - Google Patents

Abstract

The invention discloses a pure water direct drinking machine, which comprises a machine case and a water tank installed inside the machine case, a heating water tank, a filter, a water pump and a general control circuit board; The heating water volume, water temperature and general control circuit board control the boiling water outlet solenoid valve, cold water outlet solenoid valve, flushing solenoid valve and water filling solenoid valve to realize heating of drinking water required by users and avoid unnecessary repetition of drinking water heating to achieve the purpose of energy saving; in addition, the filter of the present invention can realize the self-cleaning effect by opening and closing the flushing solenoid valve.

Description

A pure water drinking machine

This patent application is a divisional application of the patent application named: A pure water direct drinking machine; application number: 2016102576217; application date: 2016.04.22.

technical field

The invention belongs to the field of household appliances, in particular to a pure water direct drinking machine.

Background technique

Drinking water dispensers are household appliances widely used in daily life or in offices. However, traditional drinking water dispensers have the following problems: First, the drinking water is repeatedly heated. Imperfect. In order to maintain the temperature of the water in the heating tank, even when the water dispenser is idle, the water will be heated repeatedly, resulting in increased energy consumption. Second, when the traditional water dispenser receives hot water, cold water directly enters the heating tank. Make the frequency of water dispenser heating increase, consume electric energy.

Contents of the invention

The technical problem to be solved by the present invention is to provide an energy-saving drinking water device capable of controlling the heating water volume and water temperature and avoiding unnecessary repeated heating of drinking water in view of the deficiencies in the prior art.

In order to achieve the purpose of the present invention, the following technical solutions are adopted: a pure water direct drinking machine, including a chassis and a water tank installed inside the chassis, a heating water tank, a filter, a water pump and a general control circuit board; the chassis The front part is formed with a water receiving chamber, and the upper part of the water receiving chamber is equipped with a cold water outlet pipe and a boiling water outlet pipe; the front part of the chassis is located above the water receiving chamber and is provided with a water volume adjustment knob, a water temperature adjustment knob, a cold water receiving switch and a boiling water outlet. A water connection switch; the top of the case above the water tank is rotatably connected with a flip cover; the inner bottom of the case is formed with a water tank base, and the bottom of the water tank base is installed with a vertical water connection connector, and the water connection The connector is connected with a water outlet pipe and an inlet pipe; the water connector includes a base and a plug joint integrally formed in the middle of the upper end of the base, and a joint partition is formed inside the plug joint, and the joint partition connects the plug joint Divided into two independent channels: the water outlet channel and the water inlet channel; the upper end of the water outlet channel is formed with a water outlet channel side gap away from the side of the joint partition; the upper end of the water inlet channel is formed away from the side of the joint partition There is a gap on the side of the water inlet channel; the water outlet channel is connected to the water outlet pipe; the water inlet channel is connected to the water inlet pipe; the heating water tank is installed in the cabinet at a position higher than the boiling water outlet pipe, and the upper end of the heating water tank is connected to There is an exhaust pipe, and the upper end of the exhaust pipe goes out to the top of the chassis, and a dust cover is set on the exhaust pipe; a heater and a temperature sensor are installed under the heating water tank, and a water level sensor is also installed in the heating water tank; The upper end of the dust cover is closed, the lower end is open, the side wall of the dust cover is evenly formed with ventilation holes, and there is a gap between the inner top of the dust cover and the exhaust pipe; There is a water tank cover, and the bottom of the water tank is formed with a water connection joint corresponding to the position of the water connection connector of the water tank base; the bottom surface of the water tank is equidistantly formed with more than 3 supporting feet along the circumferential direction; the water connection joint It includes a joint sleeve, the lower part of the joint sleeve is connected with a sealing ring that is sealed and connected with the plug joint, and a water stopper is slidably installed in the joint sleeve above the sealing ring, and a stopper is connected between the upper end of the water stopper and the upper end of the joint sleeve. The water spring, the lower end of the water stopper is sealed against the upper end of the sealing ring; the upper side wall of the joint sleeve is evenly formed with a water opening, and when the plug joint lifts up the water stopper, the water opening and the side gap of the water outlet channel, The side gap of the water inlet channel is connected; the filter includes a cylinder and a cover connected by threads, and a ceramic filter element assembly installed in the space between the cylinder and the cover; the two sides of the cover are respectively formed with The non-drinking water outlet interface and the drinking water outlet interface; the inner bottom of the cover body is integrally formed with a drinking water outlet joint in the middle, and the drinking water outlet joint is connected with the drinking water outlet interface; the inner bottom of the cover body is also formed with The non-drinking water outlet connected to the non-drinking water outlet, the inner bottom of the cover is also provided with a sealing ring, and the inner wall of the drinking water outlet of the cover is also provided with a vertical connection to the bottom surface of the cover. The clamping hole; the ceramic filter element assembly includes a circular tube-shaped ceramic filter element and is respectively fixedly connected to the ceramic filter element The first head and the second head at both ends, the middle of the first head is fixedly connected with the water outlet connector connected with the interior of the ceramic filter element, the outer wall of the water outlet connector is threadedly connected with the drinking water outlet connector, the second The middle of the two heads is integrally connected with a plug; the cylinder is in the shape of a round tube with an open lower end, a water inlet joint is formed at a non-center position on the upper end of the cylinder, and a filter element connection seat is formed at the center of the inner wall of the upper end of the cylinder; The plug of the ceramic filter element assembly is plugged into the filter element connecting seat; the water inlet nozzle is inserted with a water inlet nozzle; the water inlet nozzle is in the shape of a circular tank as a whole, and the upper end of the water inlet nozzle is formed with a On the offset positioning edge, the lower end of the water inlet nozzle is provided with a water spray port; a brush assembly is installed in the position corresponding to the ceramic filter element in the cylinder; the brush assembly includes bristles for brushing the dirt on the outer wall of the ceramic filter element, the first connection Ring, the second connecting ring, the brush rod integrally connected between the two connecting rings, and the water wheel integrally formed on the inner circumference of the first connecting ring; the bristles are fixedly connected to the inner wall of the brush rod;

The center of the water wheel is formed with a water wheel guide hole, and the outer periphery of the water wheel is uniformly formed with blades, and an angle of 20-30 degrees is formed between the surface of the blade and the axial direction of the water wheel;

The blades of the water wheel are arranged opposite to the water spout of the water inlet nozzle, and the angle between the direction of the water spout and the surface of the blade is 70-90 degrees;

The inner wall of the guide hole of the water wheel is rotationally connected with the outer wall of the filter element connecting seat;

The outer wall of the drinking water outlet joint is rotatably fitted with a rotating connecting frame; the rotating connecting frame includes an outer ring that fits and connects with the inner wall of the cover, and an inner ring that is rotatably connected with the outer wall of the drinking water outlet joint. The ring and the outer ring are integrally connected by more than 3 connecting ribs, and the upper part of the outer ring is formed with a plug-in protrusion, and the lower part of the inner ring is formed with more than 3 brakes equidistantly along the circumferential direction corresponding to the positions of the locking holes. Card slot;

The inner wall surface of the second connecting ring of the brush assembly is connected with the outer wall of the insertion protrusion of the rotating connecting frame with an interference fit;

A braking device is provided in the locking hole, and the braking device includes a plastic braking frame, and the braking frame is loaded into the locking hole from the bottom side of the cover body, and the outer wall of the braking frame is It is stepped, and the outer wall of the brake frame is sealed and fitly connected with the inner wall of the locking hole; the end surface of the lower end of the brake frame close to the inner side of the drinking water outlet is formed with a water retaining plate, and a water hole is formed on the water retaining plate; The lower end of the brake frame is formed with a lower magnet guide groove. The bottom surface of the lower magnet guide groove is a slope surface. The first magnet is slidably installed in the lower magnet guide groove. the second magnet mutually repelling the first magnet;

The second magnet makes the end of the first magnet block the water hole, and the water flow pushes the first magnet away from the water hole when the drinking water outlet comes out; the upper end of the brake frame is formed with The upper magnet guide groove, the third magnet which is attracted to the first magnet is slidably installed in the upper magnet guide groove, and the side of the third magnet is formed with an anti-rotation chuck which is matched with the brake card groove on the rotating connecting frame; The water pump is connected between the outlet pipe and the water inlet joint through a pipeline; a flushing solenoid valve is connected through a pipeline between the water inlet pipe and the non-drinking water outlet interface; the upper part of the heating water tank and the drinking water outlet interface are connected through a pipeline A water filling solenoid valve is connected; a boiling water outlet solenoid valve is connected through a pipeline between the bottom of the heating water tank and the boiling water outlet pipe; a cold water outlet solenoid valve is connected through a pipeline between the drinking water outlet interface and the cold water outlet pipe; The boiling water receiving switch, the cold water receiving switch, the water volume adjusting knob, the water temperature adjusting knob, the temperature sensor and the water level sensor are respectively electrically connected to the signal input end of the main control circuit board; Solenoid valve, flushing solenoid valve, water pump and heater are respectively electrically connected to the output end of the main control circuit board; When the valve is opened, the water in the water tank is pumped into the filter through the outlet pipe, and the filtered water flows out through the cold water outlet pipe; when taking boiled water, first set the water volume to be heated by adjusting the water volume adjustment knob, and set the required heating through the water temperature adjustment knob to the water temperature, then short press the switch for boiling water; the main control circuit board controls the water pump to work, and at the same time controls the water filling solenoid valve to open, the water in the water tank is pumped into the filter through the outlet pipe, and the filtered water flows out from the drinking water outlet port In the heating water tank, when the water level sensor detects that the water level reaches the set value of the water volume adjustment knob, the main control circuit board controls the water filling solenoid valve to close, and the main control circuit board controls the heater to heat the water in the heating water tank to the setting value of the water temperature adjustment knob. Set the temperature; press and hold the water switch for boiling water, and the solenoid valve for boiling water outlet will open;

After each water intake, the main control circuit board controls the flushing solenoid valve to open, the cold water outlet solenoid valve, the water filling solenoid valve and the boiling water outlet solenoid valve remain closed, and after the water pump continues to work for 10-30s, the flushing solenoid valve and the water pump are closed at the same time.

Compared with the prior art, the beneficial effects of the present invention are: the present invention sets the water volume to be heated through the water volume adjustment knob, and the water temperature adjustment knob sets the water temperature to be heated to the point where the main control circuit board is opposite to the boiling water outlet solenoid valve and the cold water outlet solenoid valve. The control of the valve, the flushing solenoid valve and the water filling solenoid valve realizes the heating of the drinking water required by the user, avoids unnecessary repeated heating of the drinking water, and achieves the purpose of energy saving.

Description of drawings

Fig. 1, Fig. 2 are structural representations of the present invention.

Fig. 3 and Fig. 6 are schematic cross-sectional structure diagrams of the present invention.

Fig. 4 and Fig. 5 are schematic diagrams of the cross-sectional structure of the chassis of the present invention.

Fig. 7 is a schematic structural view of the water tank of the present invention.

Fig. 8 is a schematic cross-sectional structure diagram of the water tank of the present invention.

Fig. 9 is a block diagram of the circuit system of the present invention.

Figure 10 is a schematic structural view of the filter.

Fig. 11 is a schematic cross-sectional structure diagram of a filter.

Figure 12 is an exploded schematic view of the filter.

Fig. 13 is a schematic structural view of the ceramic filter element assembly of the filter.

Figure 14 is a schematic diagram of the cover structure of the filter.

Fig. 15 is a schematic cross-sectional view of a filter cartridge.

Fig. 16 is a schematic structural view of a filter brush assembly.

Fig. 17 is a structural schematic diagram of the water inlet nozzle of the filter.

Fig. 18 is a structural schematic diagram of the braking device and the rotating connecting frame of the filter.

Fig. 19 is a structural schematic diagram of the brake frame of the filter.

Fig. 20 is a schematic structural view of the rotary connection frame of the filter.

Figure 21 and Figure 22 are schematic structural views of the water pump.

Fig. 23 is a schematic cross-sectional structural view of the water pump.

Fig. 24, Fig. 25 and Fig. 26 are structural schematic diagrams of the guide housing.

FIG. 27 is an enlarged view of the structure of part A in FIG. 26 .

Fig. 28 is a structural schematic diagram of an electromagnet.

Fig. 29 is a schematic structural view of the second electromagnet.

Fig. 30 is a schematic diagram of the structure of the piston and the drain pipe.

Fig. 31 is a block diagram of the circuit system of the water pump.

Fig. 32 is a timing chart of driving voltages of the respective electromagnets.

detailed description

Example 1

According to Fig. 1 to Fig. 20, a pure water direct drinking machine described in this embodiment includes a cabinet 81, a water tank 82 installed inside the cabinet, a heating water tank 83, a filter P, a water pump 9 and a general control Circuit board 85; the front part of the chassis is formed with a water receiving chamber 811, and the upper part of the water receiving chamber is equipped with a cold water outlet pipe 814 and a boiling water outlet pipe 815; , water temperature adjustment knob 820, cold water receiving switch 817 and boiling water receiving switch 813; the top of the cabinet is located at the position above the water tank and is connected with a flip cover 812; the inner bottom of the cabinet is formed with a water tank base 818, and the water tank base The bottom is installed with a vertically arranged water connector 819, which is connected with a water outlet pipe 843 and a water inlet pipe 844; the water connector includes a base 8191 and a plug joint integrally formed in the middle of the upper end of the base 8192, a joint partition 8193 is formed inside the plug joint, and the joint partition divides the plug joint into two independent channels: the water outlet channel and the water inlet channel; the upper end of the water outlet channel is far away from the side of the joint partition A water outlet channel side notch 8194 is formed; the upper end of the water inlet channel is formed with a water inlet channel side notch 8195 away from the side of the joint partition; the water outlet channel communicates with the outlet pipe; the water inlet channel is connected to the The water inlet pipe is connected.

The heating water tank is installed in the cabinet at a position higher than the boiling water outlet pipe, the upper end of the heating water tank is connected with an exhaust pipe 831, and the upper end of the exhaust pipe goes out to the top of the cabinet, and the exhaust pipe is covered with a dust cover 832 ; A heater and a temperature sensor are installed under the heating water tank, and a water level sensor is also installed in the heating water tank.

The upper end of the dustproof cover is closed and the lower end is open, and the side wall of the dustproof cover is evenly formed with ventilation holes, and there is a gap between the inner top of the dustproof cover and the exhaust pipe.

The water tank as a whole is in the shape of an elliptical column, the upper part of the water tank is connected with a water tank cover 821, and the bottom of the water tank is formed with a water connection 824 corresponding to the position of the water connection connector of the water tank base; the bottom surface of the water tank is equidistant along the circumference More than 3 supporting feet 823 are formed.

The water connection includes a joint sleeve 8240, the lower part of the joint sleeve is connected with a sealing ring 8244 that is sealingly connected with the plug joint, and a water stopper 8243 is slidably installed in the joint sleeve above the seal ring, and the upper end of the water stopper is connected to the connector. A water stop spring 8242 is connected between the upper ends of the sleeve, and the lower end of the water stop plug seals against the upper end of the sealing ring; the upper side wall of the joint sleeve is uniformly formed with a water outlet 8241, which is described when the plug joint lifts up the water stop plug. The water outlet communicates with the notch on the side of the water outlet channel and the notch on the side of the water inlet channel.

The filter includes a cylinder 2 and a cover 1 connected by threads, and a ceramic filter element assembly 3 installed in the space between the cylinder and the cover; the two sides of the cover are respectively formed with non-potable water outlet An interface 11 and a drinking water outlet interface 12; a drinking water outlet joint 14 is integrally formed in the middle of the inner bottom of the cover, and the drinking water outlet joint communicates with the drinking water outlet interface; the inner bottom of the cover is also formed with a The non-drinking water outlet 111 connected to the non-drinking water outlet interface is provided with a sealing ring 13 around the inner bottom of the cover body, and the inner wall of the drinking water outlet interface 12 of the cover body is also provided with a vertical connection to the cover. The locking hole 15 on the bottom surface of the body.

The ceramic filter element assembly includes a circular tube-shaped ceramic filter element 31 and a first sealing head 32 and a second sealing head 34 fixedly connected to both ends of the ceramic filter element respectively. The water outlet connector 33, the outer wall of the water outlet connector is threadedly connected with the drinking water outlet connector, and the middle of the second sealing head is integrally connected with a plug 341 .

The cylinder body is in the shape of a round tube with an open lower end, a water inlet joint 21 is formed at the non-center position of the upper end of the cylinder body, and a filter element connecting seat 22 is formed at the center position of the inner wall of the upper end of the cylinder body; the plug of the ceramic filter element assembly is connected to the filter element socket plug.

The water inlet nozzle is inserted with a water inlet nozzle 5; the water inlet nozzle is in the shape of a circular tank as a whole, and the upper end of the water inlet nozzle is formed with a positioning edge 51 that is offset against the outer end of the water inlet nozzle. Water spout 52 is arranged.

A brush assembly 4 is installed at the position corresponding to the ceramic filter element in the cylinder; the brush assembly includes bristles 43 for brushing dirt on the outer wall of the ceramic filter element, a first connecting ring 41 and a second connecting ring 44, which are integrally connected between the two The brush rod 42 between the two connecting rings, and the water wheel 45 integrally formed on the inner periphery of the first connecting ring; the bristles are fixedly connected to the inner wall of the brush rod.

The center of the water wheel is formed with a water wheel guide hole 451, and the outer periphery of the water wheel is uniformly formed with blades 452, and an included angle of 20-30 degrees is formed between the surface of the blade and the axial direction of the water wheel.

The blades of the water wheel are arranged opposite to the water spout of the water inlet nozzle, and the angle between the direction of the water spout and the surface of the blade is 70-90 degrees.

The inner wall of the water wheel guide hole 451 is rotatably connected with the outer wall of the filter element connecting seat 22 .

The outer wall of the drinking water outlet joint is rotatably socketed with a rotating connecting frame 6; the rotating connecting frame includes an outer ring 61 that fits and connects with the inner wall of the cover, and an inner ring that is rotatably connected with the outer wall of the drinking water outlet joint 62, the inner ring and the outer ring are integrally connected by more than 3 connecting ribs 63, and the upper part of the outer ring is formed with a plug-in protrusion 610, and the lower part of the inner ring is formed equidistantly along the circumferential direction corresponding to the positioning hole 15. More than 3 brake card slots 64.

The inner wall surface of the second connecting ring of the brush assembly is connected with the outer wall of the insertion protrusion of the rotating connecting frame with an interference fit.

The locking hole 15 is provided with a braking device 7, and the braking device 7 includes a plastic brake frame 71, and the braking frame is loaded into the locking hole from the bottom side of the cover body. The outer wall of the brake frame is stepped, and the outer wall of the brake frame is sealed and fitly connected with the inner wall of the locking hole.

A water baffle 711 is formed on the end surface of the lower end of the brake frame close to the inner side of the drinking water outlet interface, and a water hole 7111 is formed on the water baffle.

The lower end of the brake frame is formed with a lower magnet guide groove 712. The bottom surface of the lower magnet guide groove is a slope surface. The first magnet 72 is slidably installed in the lower magnet guide groove. A second magnet 73 mutually repelling the first magnet is installed.

The second magnet makes the end of the first magnet block the water hole, and the water flow pushes the first magnet away from the water hole when water comes out from the drinking water outlet.

The upper end of the brake frame is formed with an upper magnet guide groove 713, and a third magnet 74 that is attracted to the first magnet is slidably installed in the upper magnet guide groove. The card slot cooperates with the anti-rotation card head positioned. The blade area of the water wheel is 1-2cm², and the inner diameter of the water spout is 5-8mm.

The water pump is connected between the water outlet pipe and the water inlet joint through a pipeline; a flushing solenoid valve 846 is connected through a pipeline between the water inlet pipe and the non-drinking water outlet interface; the upper part of the heating water tank and the drinking water outlet interface are passed through The pipeline is connected with a water filling solenoid valve 847; the bottom of the heating water tank and the boiling water outlet pipe are connected with a boiling water outlet solenoid valve 841 through a pipeline; the drinking water outlet interface and the cold water outlet pipe are connected with a cold water outlet solenoid valve 845 through a pipeline .

The pipeline connected to the drinking water outlet interface 12 is connected with a three-way pipe, and the other two ends of the three-way pipe are respectively connected to the water adding solenoid valve and the cold water outlet solenoid valve through pipelines.

The boiling water receiving switch, the cold water receiving switch, the water volume adjusting knob, the water temperature adjusting knob, the temperature sensor and the water level sensor are respectively electrically connected to the signal input end of the main control circuit board; The valve, the water adding solenoid valve, the flushing solenoid valve, the water pump and the heater are respectively electrically connected to the output end of the general control circuit board.

The water volume adjustment knob and the water temperature adjustment knob are rotary rheostats, the hot water receiving switch and the cold water receiving switch are key switches; the general control circuit board is a control system based on a single-chip microcomputer. Because the general control circuit board controls the on-off of various solenoid valves, water pumps and heaters according to the signals of the hot water receiving switch, the cold water receiving switch, the water volume adjustment knob and the water level sensor, etc., it is a conventional technical means that is easily realized by those skilled in the art. , which will not be repeated in the text.

When taking cold water, press and hold the cold water receiving switch, the main control circuit board controls the water pump to work, and at the same time controls the cold water outlet solenoid valve to open, the water in the water tank is pumped into the filter through the outlet pipe, and the filtered water is passed through the cold water outlet pipe outflow;

When taking boiling water, first set the water volume to be heated by adjusting the water volume adjustment knob, then set the water temperature to be heated through the water temperature adjustment knob, and then short press the water receiving switch for boiling water; the main control circuit board controls the operation of the water pump and controls the water filling electromagnetic When the valve is opened, the water in the water tank is pumped into the filter through the outlet pipe, and the filtered water flows out from the drinking water outlet port to the heating water tank. When the water level sensor detects that the water level reaches the set value of the water volume adjustment knob, the main control circuit board controls The water filling solenoid valve is closed, and the general control circuit board controls the heater to heat the water in the heating water tank to the temperature set by the water temperature adjustment knob; long press the boiling water receiving switch, and the boiling water outlet solenoid valve opens;

After each water intake, the main control circuit board controls the flushing solenoid valve to open, the cold water outlet solenoid valve, the water filling solenoid valve and the boiling water outlet solenoid valve remain closed, and after the water pump continues to work for 10-30s, the flushing solenoid valve and the water pump are closed at the same time.

The filter drives the water wheel integrally formed on the brush assembly by the water flow ejected from the water nozzle on the water inlet nozzle, driving the brush assembly to rotate in the cylinder, and the brush arranged between the cylinder and the ceramic filter element assembly The bristles for removing dirt from the ceramic filter element are fixedly installed on the component, that is, the brushing of the ceramic filter element component is realized while the filter is producing drinking water, and the purpose of automatic cleaning of the ceramic filter element is achieved by relying on the power of the water pump to generate water flow.

The water inlet joint is connected to the outlet pipe of the water tank through the water pump, the non-drinking water outlet interface is connected to the water inlet pipe of the water tank through the flushing solenoid valve, and the drinking water outlet interface is connected to the cold water outlet pipe or the boiling water outlet pipe. When the water outlet port is connected to water but not the drinking water outlet port is not connected to water (that is, when the water pump is turned on, and the cold water outlet solenoid valve or the water filling solenoid valve is turned on), the filtered water pushes the first magnet to move in the direction of the second magnet. The third magnet is attracted to the first magnet, so it also moves towards the second magnet, and the anti-rotation clip on the third magnet is separated from the brake slot on the rotating connecting frame; Driven by the drive, the brush assembly is driven to rotate clockwise to clean the ceramic filter element.

When the drinking water outlet is blocked but not the drinking water outlet (that is, when the water pump and the flushing solenoid valve are turned on), the tap water with a small amount of dirt in the cylinder and outside the ceramic filter element passes through the non-drinking water outlet. The water pipe is brought back to the water tank to automatically remove the dirt removed from the filter core. At this time, the first magnet and the second magnet repel each other, and the first magnet is on the side of the water baffle, and the third magnet and the second magnet The first magnet attracts each other and is also on the side close to the water baffle. The anti-rotation chuck on the third magnet engages with the brake slot on the rotating connecting frame. The rotating connecting frame and the brush assembly connected to the rotating connecting frame will not Rotation is generated, which effectively avoids unnecessary wear and tear on the ceramic filter element due to excessive brushing.

When the water tank is not loaded into the water tank base, the water stopper is located in the sealing ring, and the water connection is in a closed state; when the water connection of the water tank is installed into the water tank The base, the base of the water-through connector is against the lower surface of the bottom of the water tank, and the plug-in joint is inserted into the water-through joint through the sealing ring. The water port communicates with the notch on the side of the water outlet channel and the notch on the side of the water inlet channel;

When the present invention is in use, the flip cover 812 on the cabinet 81 is lifted, and the water tank 82 filled with water is inserted into the water tank base 818. Corresponding installation; the water in the water tank can flow into the filter P from the water inlet joint 21 through the water outlet pipe 843;

When the user needs to take cold water, press and hold the cold water receiving switch 817, the main control circuit board 85 issues an instruction, the water pump 9 works, and at the same time the cold water outlet solenoid valve 845 is opened, and the water in the water tank is passed through the water outlet pipe 843 through the water inlet connector 21 It flows into the filter P, and the filtered water flows out from the drinking water outlet interface 12. At this time, the outlet water is poured into the water container placed in the water receiving chamber 811 corresponding to the cold water outlet pipe 814 through the cold water outlet pipe 814.

When the user needs to take boiled water, he first sets the amount of water to be heated by adjusting the water volume adjustment knob 816, and then short presses the water receiving switch for boiling water; the total control circuit board 85 sends out a water filling command, the water pump works, and the water filling solenoid valve 847 is opened at the same time. The water in the water tank flows into the filter P through the water inlet joint 21 through the outlet pipe 843, the filtered water flows out through the drinking water outlet interface 12, and the outlet water flows into the heating water tank 83. When the set value of the water volume adjustment knob 816 is reached, the solenoid valve 847 for adding water is controlled to be closed, and the heating water tank 83 heats the water in it to the temperature set by the water temperature adjustment knob and then stops working. In order to ensure that the pressure in the heating water tank is stable, the upper part of the heating water tank An exhaust pipe 831 is provided, at this time, the signal lamp for boiling water is turned on, and the user presses and holds the switch 813 for boiling water receiving, and the solenoid valve 841 for boiling water outlet opens, and the water is poured into the corresponding boiling water outlet through the boiling water outlet pipe 815 and placed in the water receiving cavity 811. In the water container of water pipe 815 positions.

During the above working process (the user takes boiling water or cold water), after the main control circuit board controls the cold water outlet solenoid valve 845 or the boiling water outlet solenoid valve 841 to close, the flushing solenoid valve 846 opens, and the water pump continues to work for 10-30s, then flushes. Solenoid valve and water pump are closed simultaneously. During the above process, the water inlet joint of the filter P enters water, and the non-drinking water outlet exits water, and the dirt generated in the filtering process is brought back into the water tank. When the water in the water tank is about to run out, the water tank is taken out from the cabinet, the tap water with higher dirt concentration is poured out, and the water is filled up again after cleaning with tap water, and then put into the cabinet again.

The present invention sets the water volume to be heated, the water temperature and the general control circuit board through the water volume adjustment knob and the water temperature adjustment knob to control the boiling water outlet solenoid valve, cold water outlet solenoid valve, flushing solenoid valve and water filling solenoid valve, etc. The heating of drinking water avoids unnecessary repeated heating of drinking water and achieves the purpose of energy saving; in addition, the filter of the present invention can realize the effect of self-cleaning by opening and closing the flushing solenoid valve.

Example 2

In this embodiment, on the basis of Embodiment 1, an electronic scale module for measuring the weight of the water tank is installed on the base of the water tank. The electronic scale module is connected to the general control circuit board, and the general control circuit board is also connected to a buzzer.

When the weight of the water tank measured by the electronic scale module is less than the set value, the main control circuit board controls the buzzer to alarm, prompting the user to replace the tap water in the water tank.

The weight of the water tank is about 200g, and the set value can be set as 0.5-1kg. In this way, when the water in the water tank is about to run out, the concentration of dirt and impurities in the water is already high, and the buzzer reminds the user to change the water in time , Avoid tap water with too many impurities to pollute the filter and various water pipes.

Example 3

In this embodiment, on the basis of Embodiment 1 or 2, in order to ensure the high efficiency of the filter and its self-cleaning ability, the water pump is further improved. As shown in Figures 21 to 32, the water pump includes a guide housing 91 with an upper end closed and an open lower end, a circular tubular pump housing 92 fixedly connected to the lower end of the guide housing, and a pump cover 93 fixedly connected to the lower end of the pump housing , a piston 94 slidingly installed in the pump housing, and three electromagnets installed in the guide housing to drive the piston to move up and down.

The three electromagnets include a third electromagnet 963 that is fixedly mounted on the top of the guide housing, and a second electromagnet 962 and a first electromagnet 961 that are slidably installed in the guide housing. below the iron.

The electromagnet includes an annular iron core 9601, a coil winding 9603 fixedly connected to the outer periphery of the iron core, an insulating outer ring 9604 fixedly connected to the outer periphery of the coil winding, and two symmetrically arranged elastic coils fixedly connected to the outer wall of the insulating outer ring. A brush 9605, two elastic brushes are respectively connected to the two ends of the coil winding, and the middle of the iron core is a circular guide hole 9602. The elastic brush is a copper sheet bent into a U shape.

Two guide protrusions 9606 are also formed on the insulating outer ring of the second electromagnet at a position different from that of the elastic brush.

The center of the inner bottom of the guide housing is fixedly connected with a guide column 912 that is slidably connected with the guide holes of each electromagnet; the inner wall of the guide housing is formed with a pair of conductive chute a913 along the length direction of the guide housing. Conductive chute b914 and a pair of conductive troughs 915, the conductive chute a, the conductive chute b and the inner wall of the conductive trough are formed with a layer of conductive material, and the top of the conductive housing is fixedly connected with each of the conductive chute. Groove a, the connecting terminal 911 electrically connected to the conductive material layer on the conductive chute b and the conductive groove; the elastic brush of the third electromagnet is electrically connected with the conductive groove, and the elastic brush of the second electromagnet is electrically connected to the conductive groove. The chute a is slidably connected, and the elastic brush of the first electromagnet is slidably connected with the conductive chute b; the inner wall of the guide housing is also formed with a pair of positioning guides that are slidably connected with the guide protrusion on the second electromagnet. Groove 916.

The terminals connected to each pair of conductive chute a, conductive chute b and conductive trough are electrically connected to the controller through wires,

The positioning guide groove includes a longitudinal groove body 9161, the lower end of the longitudinal groove body is formed with an obliquely downward guiding surface a9162, and the lower end of the obliquely downward guiding surface a is formed with a first positioning opening 9163, the first positioning opening is far away from the obliquely downward guiding One side of the surface a is formed with an inclined downward guide surface b9166, the lower end of the inclined downward guide surface b is formed with a second positioning opening 9167, and directly above the second positioning opening is formed with a return guide groove 9168 whose upper end communicates with the longitudinal groove. A positioning block 9164 is formed at the position between the groove body and the return guide groove. The upper end of the positioning block is opposite to the return guide groove and staggered from the position of the longitudinal groove body. The lower end of the positioning block is a V-shaped positioning surface 9165, and the V-shaped positioning The surface is only located directly above the first positioning opening and the inclined downward guide surface b, and the highest point of the V-shaped positioning surface is located above the second inclined downward guide surface b.

The upper end of the piston 94 is fixedly connected with more than three piston rods 941 distributed in a circular array, and the upper ends of each piston rod are jointly connected with an annular connecting ring 942, and the connecting ring is fixedly connected with the first electromagnet by screws.

A fixed block 953 is fixedly connected above the piston, and a spiral drain pipe 95 is fixed on the fixed block. An intake valve 951 and a drain valve 952 are installed above the pump casing, and the upper end of the drain pipe is connected with the drain valve.

A water inlet valve 931 and a water outlet valve 932 are connected to the pump cover. The air intake valve, drain valve, water inlet valve and water outlet valve are all one-way valves.

The controller controls the electromagnets of the water pump to work in an orderly manner according to the instructions of the general control circuit board.

The controller is a control circuit based on a single-chip microcomputer or a PLC programmable controller. As shown in FIG. 32 , when the water pump is working, the controller inputs corresponding control currents to the three electromagnets. Specifically, during the push-down phase of the piston, the controller controls the energization of the third electromagnet and the second electromagnet to generate a reverse magnetic field, and the repulsion force of the magnetic field pushes the piston to move downward. Constant electromagnet energization time), the controller controls the third electromagnet to temporarily cut off the power, the controller controls the first electromagnet and the second electromagnet to generate reverse magnetic field, the repulsive force of the magnetic field pushes the piston to continue to move downward, and the third electromagnet turns off When energized, the guide protrusion of the second electromagnet is stuck on the V-shaped positioning surface on the positioning guide groove, and will not move upward; during the pull-up stage of the piston, the controller controls the first electromagnet and the second electromagnet to energize to generate the same Towards the magnetic field, the attraction of the magnetic field drives the piston to move upward. At this time, the guide protrusion on the second electromagnet moves to the position of the second positioning port. When the first electromagnet and the second electromagnet are attracted together, the controller controls the third electromagnet. The electromagnet channel generates a magnetic field leading to the second electromagnet, and the attraction of the magnetic field drives the piston to continue to move upward.

Because during the pull-up phase of the piston, especially in the second half, since the three electromagnets are energized at the same time, a strong magnetic field force is formed, which can effectively drive the piston to move upward. The water pump is especially suitable as a water pump, which can pump water or other liquids from a lower position to a higher position.

A Hall sensor 97 is installed on the lower outer wall of the pump casing, and the Hall sensor is electrically connected to the signal input terminal of the controller.

The working principle of the water pump is such that when the first electromagnet moves down to the limit position, the Hall sensor detects the signal, and the controller obtains the time spent in the process of the first electromagnet moving from the uppermost end to the lowermost end. The total time, then the time for the controller to control the driving current of each electromagnet in the next cycle is set according to the total time as a reference. ——The total time for the piston to move from the uppermost end to the lowermost end is proportional to the pressure outside the water pump outlet valve. For example, when the water pump is just started to work, during the downward movement of the piston, the current time for driving the third electromagnet and the first electromagnet is 3s, and the current time for driving the second electromagnet is 6s; and the Hall sensor detects the first electromagnet The time for the iron to move to the bottom is 4s, then in the next cycle, the current time for driving the third electromagnet and the first electromagnet is changed to 2s, and the current time for driving the second electromagnet is changed to 4s; In the process, the total time for the first electromagnet and the second electromagnet to be energized is also set to be the same as the time for the piston to move downward.

Since the water pump is a piston pump, the water flow generated is discontinuous and pulsed, so that when the water flow drives the brush assembly to rotate, the bristles on the brush assembly will scrub the outer surface of the ceramic filter element more gently, but the cleaning effect is better than that of continuous brushing by the bristles. The way of the ceramic filter element is not significantly reduced, which can better extend the service life of the ceramic filter element assembly. The water pump has little vibration and produces little noise.

Claims (1)

1. a kind of pure water Drinking fountain, it is characterised in that：Including cabinet and be installed on the cabinet inside water tank, heating water Case, filter, water pump and total control circuit plate；

The cabinet front portion forms water receiving chamber, and water receiving chamber top is provided with cold water outlet pipe and boiling water outlet pipe；

The cabinet is anterior be located at water receiving chamber top be provided with runoff investigation knob, Water Temperature-Adjusting rotary knob, cold water water receiving switch with And boiling water water receiving switch；

The position that the enclosure top is located above water tank is rotatably connected to renovates；

The cabinet inner bottom part forms water tank pedestal, and the water tank base bottom is provided with and is vertically arranged water flowing plug connector, institute State water flowing plug connector and be connected with outlet pipe and water inlet pipe；

The water flowing plug connector includes base, the connection-peg being shaped in the middle of base upper end, is formed in the connection-peg Connection-peg is separated into two independent passages by joint dividing plate, the joint dividing plate：Exhalant canal and intake tunnel；

The upper end of the exhalant canal forms exhalant canal side breach away from the side of joint dividing plate；

The upper end of the intake tunnel forms intake tunnel side breach away from the side of joint dividing plate；

The exhalant canal is connected with the outlet pipe；

The intake tunnel is connected with the water inlet pipe；

The heating water tank is arranged on the position in cabinet higher than boiling water outlet pipe, and heating water tank upper end is connected with blast pipe, institute State blast pipe upper end to pass to cabinet top, and dust cover is arranged with blast pipe；Heating water tank lower section install having heaters and Temperature sensor, level sensor is also equipped with heating water tank；

The dust cover upper end closed, lower ending opening, dust cover side wall uniformly forms passage, the dust cover inner top with Gap is left between blast pipe；

The water tank is in integrally elliptic cylindrical shape, and water tank upper is connected with tank lid, the water tank bottom correspondence water tank base The position of seat water flowing plug connector forms water flowing joint；The water tank bottom surface circumferentially equidistantly forms the support feet of more than 3；

The water flowing joint includes fitting sleeve, and the bottom of fitting sleeve is connected with the sealing ring being tightly connected with the connection-peg, connects Sealing ring top is located in headgear and is slidably fitted with a filler block, be connected with only between filler block upper end and fitting sleeve upper end Water spring, filler block lower end offsets with the sealing of sealing ring upper end；The fitting sleeve upper portion side wall uniformly forms outlet pass, in institute The outlet pass is connected with exhalant canal side breach, intake tunnel side breach when stating connection-peg upward jack-up filler block；

The filter includes the cylinder and lid being connected through a screw thread, and between cylinder and lid in space Ceramic element component；The both sides of the lid form undrinkable water water outlet mouthpiece and drinking water water outlet mouthpiece respectively；Lid Integrally formed with a drinking water water out adapter in the middle of inner bottom part, the drinking water water out adapter and the drinking water water outlet mouthpiece It is connected；The inner bottom part of lid also forms the undrinkable water delivery port being connected with the undrinkable water water outlet mouthpiece, described The inner bottom part periphery of lid is additionally provided with sealing ring, and the drinking water water outlet mouthpiece inwall of the lid is further opened with vertically through extremely The screens hole of lid inner bottom surface；

The ceramic element component includes the ceramic element of round tube shape and is respectively fixedly connected with ceramic element both ends First end socket and the second end socket, are fixedly connected with the water outlet connector connected with ceramic element inside, water outlet in the middle of the first end socket Connector outer wall is connected through a screw thread with the drinking water water out adapter, and the centre of second end socket is connected with plug；

The cylinder is the round tube shape of lower ending opening, and cylinder upper end non-central location forms water supply connector, on cylinder End inwall center forms filter core connecting seat；The plug of the ceramic element component and filter core connecting seat grafting；

It is inserted with the water supply connector into water shower nozzle；It is described enter the overall rounded cell body shape of sprinkler head, enter sprinkler head upper end The positioning edge offseted with water supply connector outer end is formed, is entered sprinkler head lower end and is offered water jet；

The position of correspondence ceramic element is provided with a brush assembly in the cylinder；The brush assembly includes to brush The bristle of dirt on ceramic element outer wall, the first connection ring, the second connection ring are integrally attached between two connection rings Brush holder support, and it is shaped in the water wheels of the first connection ring inner circumferential；The bristle is fixedly connected on brush holder support inwall；

The center of the water wheels forms water wheels guide hole, water wheels periphery equably integrally formed with blade, the blade surface with The angle of 20-30 degree is formed between the axial direction of water wheels；

The blade of the water wheels with it is described enter sprinkler head water jet be oppositely arranged, and the direction of the water jet and the blade Angle between surface is 70-90 degree；

The water wheels guide hole inwall is rotated with the filter core connecting seat outer wall and is connected；

The drinking water water out adapter outer wall is rotated and is socketed with a rotation link；The rotation link is included and lid The outer ring that inwall gap is connected, and the inner ring being connected, inner ring and outer ring are rotated with the drinking water water out adapter outer wall Between by the dowel integrally connected of more than 3, and outer ring top raised, the inner ring bottom correspondingly screens that forms grafting Hole site circumferentially equidistantly forms the braking draw-in groove of more than 3；

Second connection ring internal face of the brush assembly is connected with the grafting projection outer wall interference fit of the rotation link；

Brake apparatus is provided with the screens hole, the brake apparatus includes the brake bracket of plastic material, the brake bracket It is fitted into the screens hole from lid inner bottom part side, brake bracket outer wall is stepped, and brake bracket outer wall and screens hole inwall Sealing is connected；

End face of the brake bracket lower end on the inside of drinking water water outlet mouthpiece forms water fender, and water flowing is formed on water fender Hole；

The brake bracket lower end forms lower magnet guide groove, and the bottom surface of lower magnet guide groove is in be slided in slope, lower magnet guide groove Side in first magnet, lower magnet guide groove away from water fender is installed and is installed with the second of one and the first magnet mutual exclusion Magnet；

Second magnet causes that the limbers is blocked in the end of first magnet, the water in the drinking water water outlet mouthpiece water outlet Stream promotes first magnet away from the limbers；

The brake bracket upper end forms upper magnet guide groove, and threeth attracting with the first magnet is slidably fitted with upper magnet guide groove Magnet, the 3rd magnet side forms the rotation stop dop for coordinating positioning with the braking draw-in groove on the rotation link；

The water pump is connected between outlet pipe and water supply connector by pipeline；The water inlet pipe and undrinkable water water outlet mouthpiece it Between scouring electromagnetic valve is connected with by pipeline；It is connected with by pipeline between the heating water tank upper and drinking water water outlet mouthpiece Add water magnetic valve；Boiling water water solenoid valve is connected with by pipeline between the heating water tank bottom and boiling water outlet pipe；It is described Cold water water solenoid valve is connected with by pipeline between drinking water water outlet mouthpiece and cold water outlet pipe；

Described boiling water water receiving switch, cold water water receiving switch, runoff investigation knob, Water Temperature-Adjusting rotary knob, temperature sensor and Signal input part of the level sensor respectively with total control circuit plate is electrically connected；Described boiling water water solenoid valve, cold water water outlet The output end of magnetic valve, the magnetic valve that adds water, scouring electromagnetic valve, water pump and heater respectively with total control circuit plate is electrically connected；

When taking cold water, during the switch by the cold water water receiving long, total control circuit plate control pump working, while controlling cold water water outlet Magnetic valve is opened, and the water in water tank pumps into filter by outlet pipe, and the water after filtering is flowed out by cold water outlet pipe；

When taking away water, first passing through the setting of regulating pondage adjusting knob needs the water of heating, and being set by Water Temperature-Adjusting rotary knob is needed The water temperature to be heated to, it is then short to click boiling water water receiving switch；Total control circuit plate controls pump working, while control adds water Magnetic valve is opened, and the water in water tank pumps into filter by outlet pipe, and the water after filtering flows out to heating by drinking water water outlet mouthpiece In water tank, when level sensor detects water level reaches runoff investigation knob setting value, total control circuit plate controls the electricity that adds water Magnet valve is closed, and total control circuit plate control heater carries out being heated to Water Temperature-Adjusting rotary knob setting temperature to the water in heating water tank Degree；Length presses boiling water water receiving switch, and boiling water water solenoid valve is opened；

After water intaking terminates every time, total control circuit plate control scouring electromagnetic valve is opened, and cold water water solenoid valve, add water magnetic valve Remained off with boiling water water solenoid valve, water pump works on after 10-30s, scouring electromagnetic valve and water pump are simultaneously closed off；

In the electronic scale module that water tank pedestal floor installation has to measure water tank weight, electronic scale module and total control circuit plate Connection, and it is also associated with buzzer on total control circuit plate；When electronic scale module measures water tank weight less than setting value, master control Circuit board processed controls buzzer warning, the running water in pointing out user to change water tank.