JPH081493U - Water purifier - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] A filter unit 1 built in a water purifier body without requiring a large installation space around a water tank.
5 is easy to install and remove, and the safety valve 12
Provided is a water purifier capable of preventing the raw water from scattering outside the water tank during the operation of. SOLUTION: Raw water inlet 15a and purified water outlet 1
The filter unit 15 including the filter 5b and the filters 17 and 18 is detachably attached to the body 1.
In addition, a bypass flow passage 13 that connects the water supply port 8 to the water purifier body 2 and the raw water outlet 6 is provided in the body 1, and is opened when a water pressure equal to or higher than a set pressure acts in the middle of the bypass flow passage. The safety valve 12 which becomes the state is provided.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a faucet direct connection type water purifier to be used by being attached to a faucet of a general household, and in particular, it is easy to install and remove the filter unit built into the water purifier body, and the filter of the water purifier body is easy to remove. The present invention relates to a water purifier equipped with a safety mechanism capable of suppressing an increase in water pressure in a waterway due to clogging.

[0002]

[Prior art]

 FIG. 4 is a sectional view showing a main part of a conventional water purifier.

In this water purifier, a raw water inlet 4, a water inlet 8 to a separately placed water purifier body 2, and a raw water outlet 6 are formed on a body 1 attached to a swing arm type faucet 3, and the raw water is also formed. A rotary flow passage switching valve 9 is provided for switching the raw water from the inlet 4 to the water supply port 8 and the state to directly guide the raw water to the raw water outlet 6. As shown in the figure, the body 1 of the water purifier is separately provided with a water passage 22 that communicates with the water supply port 8 through the flow path switching valve 9 while guiding the raw water to the water purifier body 2. Can be installed. This safety valve unit 23 automatically drains water from the drainage port 24 when the filter portion of the water purifier body 2 becomes clogged and the water channel pressure increases, thereby suppressing the pressure in the water channel from rising above the set pressure. It protects the water purifier body 2 and so on.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional water purifier has the following problems.

That is, in the conventional water purifier, since the water purifier body 2 is provided separately from the body 1, not only a large installation space is required around the water tank such as a sink but also the water purifier body 2 is provided. It is unexpectedly inconvenient to replace the existing filter unit, and since the drainage when the safety valve is activated is done through the drainage port 24 provided in the safety valve unit 23 itself, the drainage blows out in an unexpected direction and the surroundings. The problem is that it gets wet. In other words, since the drainage port 24 does not normally discharge water, it may be provided at a position outside the water tank (not shown). In such a case, the safety valve unit 23 will not be activated when water is sent to the water purifier body 2. When opened, the water discharged from the drainage port 24 will be scattered outside the aquarium.

The present invention has been made in view of the above circumstances, and is a water purifier that does not require a large installation space around a water tank, and is suitable for mounting a filter unit incorporated in the water purifier body. It is an object of the present invention to provide a water purifier that is easy to remove and that can prevent raw water from splashing out of the aquarium when the safety valve operates, as seen in conventional water purifiers with safety valves.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has the following configuration.

That is, the present invention is a faucet direct connection type water purifier in which a water purifier body for purifying raw water is integrally assembled to a body for connecting a faucet, wherein the body is connected to a raw water inlet and a water purifier body. A water purifier equipped with a water supply port and a raw water outlet, and equipped with a flow path switching valve capable of switching between a state of guiding raw water entering from the raw water inlet to the water source and a state of guiding the raw water to the raw water outlet, (A) The water purifier body has a built-in filter unit having an inlet for raw water, an outlet for purified water, and a filter for filtering raw water that has flowed in through the inlet and flowing it out through the outlet. In addition, the filter unit is detachably provided on the water purifier body, and (B) a bypass flow connecting the water supply port to the water purifier body and the raw water outlet in the body. Provided with a, in the bypass passage way, characterized in that a safety valve in the open state when the water pressure above the set pressure is applied.

In this case, the filter unit is provided in the water purifier body so that the inflow port of the raw water communicates with the water supply port of the body. The filter unit is a cylindrical container, and the filter is housed therein, and the raw water inlet and the purified water outlet are both provided on one end surface of the container. It is preferably formed as described above. The body is convenient because it does not take up much space when attached to a swing arm type faucet.

[0010]

[Action]

 According to the water purifier of the present invention, when the filter unit is clogged, it is taken out of the main body of the water purifier and replaced with a new one. If water continues to be supplied to the water purifier body while the filter unit is not replaced and is clogged, the water pressure in the water channel leading to the water purifier body will exceed the set pressure, and the water will be installed in the middle of the bypass flow path. The safety valve is opened and the raw water sent to the main body of the water purifier is discharged from the raw water outlet via the bypass channel.

[0011]

[Embodiment of device]

 Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a vertical cross-sectional view of a state in which a flow path switching valve is set so as to guide raw water supplied from a faucet to a water supply port to a water purifier body, and FIG. 2 is supplied from a faucet. It is a partial longitudinal cross-sectional view of the state where the flow path switching valve is set so as to guide the raw water to the raw water outlet.

This water purifier is of a faucet direct connection type in which a water purifier main body 2 is integrally assembled to a body 1. In the figure, the case where the water purifier is attached to a swing arm type faucet 3 is shown. A raw water inlet 4 is provided above the body 1, and the faucet 3 is connected to the raw water inlet 4 via a nut 5a. A raw water outlet 6 is provided at the bottom of the body 1, and a foamer 7 is attached in the figure. Further, a water supply port 8 is provided on the side portion of the body 1, and the water purifier main body 2 is communicatively connected thereto by a nut 5b.

Inside the body 1, a state in which the raw water inlet 4 communicates only with the water supply port 8 by lateral slide (see FIG. 1) and a state in which the raw water inlet 4 communicates only with the raw water outlet 6 (see FIG. 2) A slide type flow path switching valve 9 that can be switched between and is incorporated. The sliding operation of the flow path switching valve 9 is set at the stroke end by pushing and pulling the knob 10 attached to the outer end of the valve.

Inside the flow path switching valve 9, there is provided a bypass path 13 for connecting the water supply port 8 and the raw water outlet 6, and in the middle of this bypass flow path 13 an internal spring 11 is provided. A safety valve 12 biased in a closed state is incorporated.

On the other hand, the water purifier main body 2 includes a base 14 connected to the body 1, a filter unit 15 that is attached to and detached from the base 14, and a cap 16 that houses the filter unit 15. As shown in FIG. 1, the filter unit 15 has a raw water inlet port 15a for receiving raw water supplied from the water feed port 8 and a purified water outlet port 15b on the lower surface of a cylindrical container. It is provided in a state of protruding, and a primary filter 17 containing antibacterial activated carbon as a main component and a secondary filter 18 composed of a bundle of hollow fiber membranes having ultrafine pores are incorporated therein. Further, the base 14 is provided with an inlet 19 and a purified water outlet 21 which engage with the inlet 15a of the filter unit 15 and the purified water outlet 15b, respectively.

The operation of the water purifier of the present invention is as follows.

The raw water sent from the water supply port 8 is guided to the primary filter 17 through the introduction port 19, the inflow port 15 a, and the stop valve 20, and here, scaly water, organic substances and the like are removed. The raw water that has passed through the primary filter 17 is further supplied to the secondary filter 18, where fine impurities such as bacteria, iron rust, mold, and nigiri are removed, and purified purified water is discharged through the outlet 15b. After that, it is supplied from the purified water outlet 21.

Next, the operation of the safety valve 12 of this embodiment will be described with reference to FIG.

FIG. 3 is a partial cross-sectional view showing the periphery of the flow path switching valve 9 in an enlarged manner.

When the filters 17, 18 in the water purifier body 2 are clogged, the pressure in the water channel on the side connected to the water purifier body 2 gradually increases. When this water pressure becomes higher than the biasing force of the internal spring 11 that biases the safety valve 12 in the closed state, the safety valve 12 is displaced rightward in the drawing. As a result, the raw water taken in from the raw water inlet 4 flows through the bypass channel 13 as shown by the arrow in the figure, and is discharged from the raw water outlet 6.

[0022]

[Effect of device]

 The water purifier of the present invention has the following effects.

(1) Unlike the conventional water purifier, it does not require a wide installation space around a water tank such as a sink because it is a water faucet direct connection type water purifier that is integrally assembled with the body .

(2) Further, since the filter unit is detachably incorporated in the water purifier body, even if the filter of the water purifier is clogged, the filter unit can be easily taken out from the water purifier body. It is easy to replace with a new one.

(3) Further, even if the filter unit is continuously used without being replaced, the pressure in the water channel rises due to clogging and the safety valve operates, and the raw water is discharged to the raw water outlet via the bypass flow passage. Therefore, unless the raw water outlet is located at a position outside the water tank, the problem of the raw water being discharged into the water tank and scattering of the raw water out of the water tank as seen in conventional devices can be solved. it can.

[Brief description of drawings]

FIG. 1 is an explanatory view of a preferred embodiment of the present invention, and is a vertical cross-sectional view showing a state in which raw water is fed to a water purifier body.

FIG. 2 is a partial vertical cross-sectional view showing a state in which raw water is directly taken out from a raw water outlet in the water purifier of FIG.

3 is a partial cross-sectional view for explaining the operation of the safety valve when the filter of the main body of FIG. 2 is clogged.

FIG. 4 is a longitudinal sectional view of a main part of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body 2 ... Water purifier main body 3 ... Faucet 4 ... Raw water inlet 6 ... Raw water outlet 8 ... Water inlet 9 ... Flow passage switching valve 12 ... Safety valve 13 ... Bypass flow passage 15 ... Filter unit 15a ... Inlet port 15b ... Outlet port 17 … Primary filter (activated carbon) 18… Secondary filter (hollow fiber membrane bundle)

Claims (4)

[Scope of utility model registration request] 1. A faucet direct connection type water purifier in which a water purifier body for purifying raw water is integrally assembled to a body for connecting a faucet, wherein a raw water inlet, a water supply port to the water purifier body, And a water purifier provided with a raw water outlet and provided with a flow passage switching valve capable of switching between a state in which the raw water entered from the raw water inlet is guided to the water supply port and a state in which the raw water is guided to the raw water outlet. The water purifier body has a built-in filter unit having an inlet for raw water, an outlet for purified water, and a filter for filtering raw water that has flowed in from the inlet and flowing out from the outlet. A filter unit is detachably provided on the water purifier body, and (B) a bypass flow path connecting a water feed port to the water purifier body and the raw water outlet is provided in the body, and The middle-pass flow path, water purifier, characterized in that a safety valve in the open state when the water pressure above the set pressure is applied. 2. The water purifier according to claim 1, wherein in the filter unit, an inlet of the raw water communicates with a water outlet of the body. 3. The filter unit is a cylindrical container in which the filter is housed, and the raw water inlet and the purified water outlet are both at one end surface of the container. It is provided in the water purifier according to claim 1 or 2. 4. The water purifier according to claim 1, wherein the water purifier is attached to a swing arm type faucet.