JPH0621720U - Air purifier - Google Patents

Abstract

(57) [Summary] [Objective] An object of the present invention is to provide an air cleaning device configured so that a retractable suction hose can be selectively used. [Structure] The air purifying apparatus has a first fan 9 and a second fan 11 arranged in a housing 1, an air suction port is provided on the front surface of the housing 1, and a hose is provided on a side surface 1c of the housing 1. A connection port 7 is provided. The hose connection port 7 communicates with the ventilation duct 6 via the branch duct 8. When the suction hose 19 is inserted into the hose connection port 7, the lid 23 of the hose connection port 7 is opened and the slide plate 24 is attached to the ventilation duct 6. Cut off the air intake side, and at the same time, connect hose 7 and ventilation duct 6
Communicate with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air cleaning device, and more particularly to an air cleaning device configured so that a retractable suction hose can be selectively used.

[0002]

[Prior art]

 For example, in a conventional air purifying device, an air suction port is provided on the front surface of the housing, and a fan inside the housing sucks ambient air and allows the air to pass through the paper filter, thereby removing dust in the air. It is designed to be removed to produce clean air.

In this type of air purifying device, there is a relatively small portable type device that can be carried, and for example, the installation location can be changed as the family moves.

[0004]

[Problems to be solved by the device]

 However, in conventional air purifiers, most of the front surface of the housing is an air inlet so that the surrounding air can be sucked in as much as possible, so air is sucked from the front surface of the housing at a slow speed. Will be. However, when using a hot plate or teppanyaki, which is liable to generate smoke and steam on the table, and cooking with a hot pot, it is not enough to use only the ventilation fan.Therefore, install the above portable type air cleaning device on the table. It is designed to suck in smoke, steam, etc.

However, in the conventional air purifying apparatus, since the air is sucked in through the air suction port provided on the front surface of the housing, local air dirt such as smoke and steam generated above the large-area hot plate or the iron plate is polluted. There is a problem that it cannot be removed effectively and most of it stays at the top of the room and stains the ceiling.

Therefore, an object of the present invention is to provide an air cleaning device that solves the above problems.

[0007]

[Means for Solving the Problems]

 The invention of claim 1 is an air purifying device that removes dust in the air by passing the air sucked from the air suction port through a filter housed in a housing, and is provided in a passage communicating with the air suction port. And a hose connection port having an opening area smaller than that of the air suction port, a suction hose connected to the hose connection port and capable of expanding and contracting, and opening the hose connection port when sucking air by the suction hose. The air suction port is closed, and when air is sucked from the air suction port, the air passage is switched so as to close the hose connection port and open the air suction port.

Further, the invention of claim 2 is provided with a plurality of fans for sucking air in the housing, and a control means for changing the operation state of the plurality of fans together with the switching operation of the switching means.

[0009]

[Action]

 Since the suction hose that can be expanded and contracted can be connected to the hose connection port having a smaller opening area than the air suction port, it is possible to effectively remove local air stains such as smoke and steam generated in cooking, for example.

[0010]

【Example】

 1 to 3 show an embodiment of the air cleaning device according to the present invention.

In each figure, the air purifying device is a fan type air purifying device configured to remove dust in the air sucked by a fan. As described later, the air purifying device sucks air from the front surface 1 a of the housing 1. And a second air suction path using the suction hose from the side surface 1c.

A front panel 3 having a plurality of air inlets 2 on a lattice is detachably attached to the front surface 1 a of the housing 1. A filter 4 is replaceably attached to the back side of the front panel 3. Further, a lattice-shaped exhaust port 5 is formed in the rear surface 1b of the casing 1, and a ventilation duct 6 that connects the air intake port 2 and the exhaust port 5 is provided in the casing 1. . A hose connection port 7 is opened on the side surface 1c of the housing 1, and the hose connection port 7 communicates with a branch duct 8 which is branched laterally from the ventilation duct 6.

Reference numeral 9 denotes a first fan, which is provided so as to be located on the back side of the air intake port 2 on the front surface 1 a and is supported in the ventilation duct 6 by an L-shaped support column 10.

Reference numeral 11 denotes a second fan for generating an air flow in the ventilation duct 6, which is provided so as to be located between the exhaust port 5 of the rear surface 1 b and the branch duct 8 and is supported by the support column 12 so that the ventilation duct 6 is provided. Is supported within. Further, the first fan 9 sucks a large amount of air from the air suction port 2, and is therefore larger than the second fan 11.

It should be noted that the ventilation duct 6 efficiently sucks a large amount of air and diffuses clean air to the surroundings, so that an opening area of the air suction port 2 side provided with the first fan 9 and an exhaust port 5 are provided. The opening area on the side is formed to be the largest.

Reference numeral 13 is a circuit box, inside of which a rechargeable storage battery 14 and a control circuit 15 for controlling the number of revolutions of the fans 9 and 11 are provided. A power switch 16 and a connector 17 for connecting to a household power supply (100 VAC) are provided on the side surface of the circuit box 13. The columns 10 and 12 supporting the fans 9 and 11 are connected to the circuit box 13 at their ends, and the current from the storage battery is supplied to the motors 9a and 11a of the fans 9 and 11 inside the columns 10 and 12, respectively. A cable (not shown) has been inserted. As described above, since the rechargeable storage battery 14 is used as a power source in this embodiment, it can be easily moved by using the handle 18 provided on the upper surface 1d of the housing 1 and used in a place without an outlet.

Usually, when cleaning the air in the room, the fans 9 and 11 are rotationally driven to suck air from the air suction port 2 of the front surface 1a, as shown by the arrow in FIG. Then, the sucked air passes through the filter 4 and is filtered, and the dust in the air is removed. Further, the filtered air flows through the ventilation duct 6 and is discharged from the exhaust port 5 by the second fan 11.

Reference numeral 19 denotes a suction hose, which has a connection portion 20 inserted into the hose connection port 7 at one end and a wide nozzle 21 at the other end. A bellows-shaped hose 22 that is capable of expanding and contracting is interposed between the connecting portion 20 and the nozzle 21, and is bent according to the position of the nozzle 21.

A lid 23 for closing the hose connection port 7 is attached to the inlet of the hose connection port 7 provided on the side surface 1c of the housing 1 so as to be rotatable in the C and D directions. When the hose 19 is inserted, the hose is rotated inward to open the inlet of the hose connection port 7.

As shown in FIG. 4, a slide plate 24 (switching means) is slidably provided at the lower part of the inlet of the hose connection port 7, and one end of the slide plate 24 is connected to the hose connection port 7. It is urged in the A direction by the tensile force of the coil spring 25 hooked on the inner wall. The slide plate 24 slides in the B direction to block the ventilation duct 6 between the fans 9 and 11 and switch the air suction path.

Further, in the inner part of the branch duct 8 located in the sliding direction of the slide plate 24, the first and second hose detection switches which are pressed by the collar portion 24 a of the slide plate 24 by inserting the suction hose 19. 26 and 27 are provided. The first hose detection switch 26 is a switch for stopping the first fan 9, the second hose detection switch 27 is a switch for changing the rotation speed of the second fan 11, and both switches 26, 27 are pressed. It is a push switch that is turned on while being pressed. That is, as will be described later, the control circuit 15 stops the first fan 9 and stops the second fan when the detection signals output from the first and second hose detection switches 26 and 27 come in. Increase the number of rotations of 11.

Further, as shown in FIG. 4, at the end of the connection portion 20 inserted into the hose connection port 7 of the suction hose 19, a protrusion 28 that comes into contact with the slide plate 24 and a lid of the hose connection port 7 are provided. An inclined portion 29 for opening the lid 23 is provided. Further, on the outer periphery of the connection portion 20, there are provided a hook 30 that engages with an inner wall recess (not shown) of the hose connection port 7, and a release button 31 that releases the locking by the hook 30.

Further, as shown in FIGS. 5 and 6, the nozzle 21 of the suction hose 19 is a first support column having a fitting portion 33a that fits into the handle 32a of the iron plate 32 placed on the gas stove 36. 33 and a second support column 34, which is expandable and contractible for supporting on a table (not shown). A filter unit 35 is mounted between the nozzle 21 and the hose 22, and filters 35a and 35b for adsorbing smoke and oil vapor in the air are inserted in the filter unit 35.

Since the filter unit 35 is detachably attached to the nozzle 21 and the hose 22, it is regularly replaced or washed when the filters 35a and 35b are soiled. Further, since the filters 4, 35a, 35b are likely to be attached with a large amount of oil or water, a filter made of a material resistant to water is used.

When the device having the above-mentioned configuration is used as a normal air cleaning device, the suction hose 19 is not inserted into the hose connection port 7, and the hose connection port 7 is closed by the lid 23. Further, since the storage battery 9 is normally supplied with current from a household outlet, the storage battery 9 is normally charged with electricity in a charged state, and only when the household outlet is not nearby and no current is supplied from outside. Switch to supply current to fans 9 and 11.

Therefore, when the power switch 16 is turned on, electric current is supplied from the storage battery 9 or a household outlet to drive the fans 9 and 11 to rotate, and as shown by the arrow in FIG. Air is sucked in through the air suction port 2. In this case, the fan 11 is driven at low speed because it only generates an air flow in the ventilation duct 6.

Then, the air sucked from the air suction port 2 passes through the filter 4 and is filtered, and the dust in the air adheres to the filter 4 and is removed. Further, the clean air filtered by the filter 4 flows through the ventilation duct 6 and is discharged from the exhaust port 5 by the second fan 11 to clean the indoor air. Since the filter 4 is provided at the air suction port 2, the inside of the ventilation duct 6 is prevented from being contaminated by dust in the air.

When using the suction hose 19 to locally remove air pollution, the connection portion 20 of the suction hose 19 is inserted into the hose connection port 7 as shown in FIG.

As shown in FIGS. 7 and 8, when the connecting portion 20 of the suction hose 19 is inserted into the hose connecting port 7, the protruding portion 28 that first protrudes from the tip of the connecting portion 20 is attached to the slide plate 24. When the slide plate 24 comes into contact with the collar portion 24b, the collar portion 24b is pressed in the B direction and the slide plate 24 slides in the same direction. By this sliding operation, the lid 23 can be rotated inward (C direction), and the lid 23 can be rotated inward (C direction) along the inclined portion 29 of the suction hose 19.

In this way, when the lid 23 is rotated to the position shown in FIG. 7, the inclined portion 29 of the connecting portion 20 comes into contact with the lid 23 and the protruding portion 28 comes into contact with the flange portion 24b of the slide plate 24. Further, when the connecting portion 20 of the suction hose 19 is pressed in the B direction and inserted into the hose connecting port 7, the lid 23 is fully opened and the slide plate 24 is ventilated at the tip side flange portion 24a as shown in FIG. The hose detection switches 26, 27 provided in the duct 6 are brought into contact with each other and turned on. At the same time, the slide plate 24 blocks the ventilation duct 6 and switches the air suction path to the hose side.

When the connecting portion 20 of the suction hose 19 is inserted, the hook 30 provided on the outer periphery of the connecting portion 20 engages with the inner wall recess (not shown) of the hose connecting port 7. As a result, the connecting portion 20 of the suction hose 19 is connected to the hose connecting port 7 and locked in a non-separable state.

In this way, the connecting portion 20 of the suction hose 19 is locked only by inserting it into the hose connecting port 7, and at the same time, the air suction path is switched to the hose side by the sliding operation of the slide plate 24. Therefore, a troublesome switching operation is unnecessary.

Next, in the nozzle 21 of the suction hose 19, as shown in FIGS. 5 and 6, the fitting portion 33 a of the first support column 33 is fitted to the handle 32 a of the iron plate 32 placed on the gas stove 36. At the same time, the second support column 34 is adjusted to a length supported on a table (not shown).

When the power switch 16 is operated to be turned on, current is supplied from the storage battery 9 or the household outlet to rotate only the fan 9. The control circuit 15 stops the first fan 9 because the slide plate 24 has turned on the hose detection switches 26 and 27 provided in the ventilation duct 6 by the insertion operation of the connection portion 20 of the suction hose 19. At the same time, the second fan 11 is rotated at high speed. Further, since the air intake port 2 side of the front surface 1a of the ventilation duct 6 is blocked by the slide plate 24, the air on the iron plate 32 is strongly sucked from the nozzle 21 of the suction hose 19. Therefore, the oil vapor and smoke generated on the iron plate 32 are effectively sucked into the nozzle 21 of the suction hose 19 and pass through the filter unit 35.

Therefore, smoke, oil vapor and the like in the air sucked into the nozzle 21 are adsorbed by the filters 35 a and 35 b in the process of passing through the filter unit 35. The clean air passing through the filter unit 35 flows through the hose 22 into the branch duct 8 through the hose connection port 7, passes through the ventilation duct 6, and is discharged through the exhaust port 5.

Therefore, it is possible to prevent the oil vapor and smoke generated from the iron plate 32 from diffusing into the room and to prevent the ceiling and the like from becoming dirty.

When disconnecting the suction hose 19 from the hose connection port 7, the hook 30 provided on the outer periphery of the connection part 20 is attached to the hose connection port 7 by pressing the release button 31 provided on the suction hose 19. It separates from the inner wall recess (not shown). Then, the connection portion 20 of the suction hose 19 is pulled out from the hose connection port 7 in the A direction.

When the connecting portion 20 of the suction hose 19 is pulled out from the hose connecting port 7, the slide plate 24 is returned in the A direction by the pulling force of the coil spring 25 and the lid 23 is closed in the closing direction (D direction). Rotate. As a result, the hose detection switches 26 and 27 are switched off, and at the same time, the hose connection port 7 is closed by the lid 23, and the lid 23 is locked by the collar portion 24b of the slide plate 24.

Therefore, not only the operation of removing the suction hose 19 can be easily performed, but at the same time when the connection portion 20 of the suction hose 19 is pulled out from the hose connection port 7, the air suction path is cut to the air suction port 2 side of the front face 1a. Instead, a troublesome switching operation is unnecessary.

In the above embodiment, the case of using an iron plate or a pot for cooking is described as an example, but it goes without saying that the invention is not limited to this.

Further, although the suction hose 19 is detachably provided in the above embodiment, the suction hose 19 may be fixedly connected to the housing 1.

Further, the number of fans is not limited to two, and three or more fans may be provided, or a plurality of suction hoses 19 may be connected.

[0043]

[Effect of device]

 As described above, in the air cleaning device according to the present invention, since the suction hose that can be expanded and contracted can be connected to the hose connection port having a smaller opening area than the air suction port, for example, smoke or steam generated by food or the like can be locally applied. It is possible to effectively remove the air pollution. Furthermore, the switching operation of the switching means makes it easy to switch between the air suction path from the normal air suction port and the air suction path by the suction hose, so the suction hose is not troublesome to use and can be used as needed. it can.

Further, there is a feature that the air suction efficiency can be improved by changing the rotation of the plurality of fans in accordance with the switching of the air suction path.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of an air cleaning device according to the present invention.

FIG. 2 is a vertical cross-sectional view of the air cleaning device shown in FIG. 1 as seen from the front.

FIG. 3 is a vertical cross-sectional view of the air cleaning device shown in FIG. 1 seen from a side surface.

FIG. 4 is an enlarged vertical cross-sectional view showing a connection portion of a suction hose and a hose connection port.

FIG. 5 is a diagram showing a mounting state of a nozzle of a suction hose.

FIG. 6 is an enlarged view of the nozzle of the suction hose seen from the front.

FIG. 7 is an enlarged vertical cross-sectional view showing a state in which the connection portion of the suction hose is inserted into the hose connection port.

FIG. 8 is an enlarged vertical cross-sectional view showing a state where the connection portion of the suction hose is completely inserted into the hose connection port.

[Explanation of symbols]

 1 Case 2 Air Suction Port 3 Front Panel 4 Filter 5 Exhaust Port 6 Ventilation Duct 7 Hose Connection Port 8 Branch Duct 9 First Fan 11 Second Fan 13 Circuit Box 14 Storage Battery 14 15 Control Circuit 19 Suction Hose 20 Connection Portion 21 Nozzle 22 Hose 23 Lid 24 Slide Plate 26, 27 Hose Detection Switch 35 Filter Unit

Claims (2)

[Scope of utility model registration request] 1. An air cleaning apparatus for removing dust in the air by passing air sucked from an air suction port through a filter housed in a housing, the air purification device being provided in a passage communicating with the air suction port. A hose connection port having an opening area smaller than that of the suction port, a suction hose connected to the hose connection port and capable of expanding and contracting, and when air is sucked by the suction hose, the hose connection port is opened and the air suction port is opened. And a switching means for switching the air passage so that the hose connection port is closed and the air suction port is opened when air is sucked from the air suction port. 2. The air cleaning apparatus according to claim 1, wherein a plurality of fans for sucking air are provided in the housing, and control means for changing the operation state of the plurality of fans together with the switching operation of the switching means is provided.