JP2504058Y2 - Water purifier - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a water purifier which is connected to a faucet of a water supply and guides water into an internal filter cylinder for treatment.

[0002]

2. Description of the Related Art As a conventional water purifier, there is a water purifier whose hollow case is made of synthetic resin and whose entire surface is plated with chrome to enhance its high-class appearance. A water inlet and two outlets are provided in the hollow case, the inlet and the first outlet are directly communicated with each other, and the inlet and the second outlet are connected to a filter cylinder. It communicates via the body. The two water flow paths are switched by valve operation so that untreated water is discharged from the first outlet and treated water is discharged from the second outlet.

[0003]

The faucet of the faucet is connected to the inlet, and when the faucet is a hot and cold water mixing tap, the temperature of the hollow case rises when hot water is supplied to the water purifier. Due to the difference in expansion coefficient between the synthetic resin and the chrome plating, the chrome plating on the surface may peel off. According to an experiment conducted by the inventor, since the hot water hits the inner surface of the hollow case near the outlet strongly, the temperature rise is remarkable at that part, and a large pressure acts on the inner surface of the hollow case. There is. The present invention has been made in view of the above problems, and an object thereof is to provide a water purifier that prevents the chrome plating from peeling off by devising such a structure that the hot water does not directly hit the inner surface of the hollow case near the outlet. And

[0004]

This invention relates to a water purifier in which a hollow case having a water inlet and a water outlet is made of synthetic resin and whose entire surface is metal-plated.
At least the inner surface of the hollow case near the outflow port is covered with a protective wall.

[0005]

When the hot water is supplied from the inflow port, the inner surface of the hollow case near the outflow port is covered with the protective wall, so the hot water hits the protective wall and does not directly hit the hollow case. Therefore, the temperature rise of the hollow case in the vicinity of the outflow port is small, and since strong pressure is not applied to the inner surface of the hollow case, the chromium plating is not likely to peel off.

[0006]

1 to 3 show the structure of a water purifier according to an embodiment of the present invention. The water purifier 1 has a structure in which a filter cylinder 3 is freely installed in a hollow case 2 so as to be detachably attached. The hollow case 2 is made of synthetic resin, and the entire surface thereof is plated with chrome.

The hollow case 2 has a switching section 4 for selecting whether to take in water for treatment or to let the water out without treatment, and a water treatment section 5 for performing water treatment by the filtration cylinder 3. It consists of and. The switching unit 4 and the water treatment unit 5 are connected by a communication passage 6, and water flows into the water treatment unit 5 through a communication port 7.

The switching unit 4 is provided with an inflow port 8 for inflowing water to be treated and a first outflow port 9 for allowing water to flow out without being sent to the water treatment unit 5, and has a water path inside. A valve body 10 for switching between is provided.

The inflow port 8 is a portion which is connected to a faucet of a faucet or the like to allow water to flow into the hollow case 2. Here, although not shown, a screw portion for fixing a mounting nut 11 is provided on an outer peripheral surface. ing. At the time of connection, the mounting nut 11 is passed through the pipe 12 of the faucet, and a ring-shaped adapter (not shown)
Is attached to the tip of the pipe 12, the adapter is inserted into the inflow port 8, and then the mounting nut 11 is fitted on the adapter and screwed to the threaded portion of the inflow port 8.

The first outlet 9 on the inner surface of the hollow case 2
A cover body 40 made of synthetic resin is tightly fitted to the inside of the. The cover body 40 protects the chrome plating on the inner surface of the hollow case 2, and the two O-rings 4 are provided between the inner peripheral surface of the hollow case 2 and the cover body 40.
1, 42 are interposed to form a watertight structure.

The cover body 40 has a cylindrical peripheral wall 43 whose lower end is open and whose upper end is integrally formed with a substrate portion 44. A connection hole 45 is formed in the central portion of the substrate portion 44 so as to penetrate the substrate portion 44, and a projecting wall 46 is formed integrally with the outer peripheral portion of the connection hole 45. Cover body 40
A water discharge port 27 communicating with the inflow port 8 is located above, and the projecting wall 46 is fitted to the outer periphery of the water discharge port 27, and a gap between the both is sealed in a watertight state by an O-ring 47. is there.

The two O-rings 41 and 42 are fitted in two fitting grooves 48 formed in the outer peripheral surface of the cylindrical peripheral wall 43 of the cover body 40.

A screw portion 1 is formed on the outer peripheral surface of the first outlet 9.
3 is provided, and a synthetic resin cap 15 having a plurality of water passage holes 14 is screw-fixed to the screw portion 13 with a ring-shaped rubber packing 16 interposed.

The packing 16 is disposed on the outer peripheral portion of the bottom surface of the cap 15, and on the bottom surface of the cap 15, a packing support wall 38 is formed integrally around the inside of the installation position of the packing 16. It

The water that has flowed in through the inflow port 8 is not treated and flows out through the water passage hole 14 or the first water flow path a in FIG. Follow either path of the second water flow path b sent to.

The switching of the path is performed by the valve body 10 provided in the switching section 4. The valve body 10 is shown in FIG.
As shown in FIG. 5 and FIG. 5, the operating portion 17 and the valve shaft 18 are provided, and the operating portion 17 is provided with a handle 19.
The valve shaft 18 is provided with a water passage 20 penetrating in the radial direction and a guide groove 21 having a notched peripheral surface at an angle of 90 degrees as shown in FIG. In the state where the handle 19 is located at the upper side, the water passage 20 is vertically arranged to communicate the inflow port 8 and the first outflow port 9 with water passing through the first water flow path a and It flows out from the first outlet 9. On the other hand, when the handle 19 is rotated 90 degrees, the groove opening of the guide groove 21 faces upward and faces the inflow port 8, so that the guide groove 2
1 communicates with the communication passage 6, and water flows to the water treatment unit 5 through the second water flow path b.

The hollow case 2 has an upper surface opening 31 for fitting and supporting the lower portion of the filter cylinder 3, and the lower end of the cylindrical cap 22 is on the inner peripheral surface of the opening edge of the upper surface opening 31. The screw portion 23 for screwing the screw portion 32 of the portion is formed. A cone-shaped portion 33 is formed inside the upper surface opening portion 31, and a second outlet 24 through which treated water flows out is opened at a lower end of the cone-shaped portion 33.

On the inner peripheral surface of the upper surface opening 31, a synthetic resin cover body 50 for protecting the inner surface of the hollow case 2 from chrome plating is adhered and fixed by an adhesive.
The cover body 50 is a cylindrical body whose upper end is open and whose lower end is adapted to the inner surface shape of the weight-like portion 33, and the water discharge port 51 provided at the lower end faces the second outlet 24. It is located.

The peripheral wall of the cover body 50 is provided with a through hole 52 which coincides with the communication port 7 of the hollow case 2. Although not shown here, a plurality of convex portions that engage with the positioning grooves 53 formed on the outer peripheral surface of the tubular body 51 are provided on the inner peripheral surface of the upper surface opening portion 31.

In the figure, reference numerals 25 and 26 denote rubber packings disposed inside the upper opening 31. One rubber packing 25 is provided between the hollow case 2 and the tubular cap 22 and the other rubber packing is provided. Reference numeral 26 seals the space between the hollow case 2 and the filter cylinder 3 in a watertight state.

The cylindrical cap 22 is a double layer in which an opaque synthetic resin outer cap body 35 is tightly fitted to the outer peripheral surface of a transparent synthetic resin inner cap body 34 and the entire surface is joined with an adhesive. The structure of the inner cap body 3
The opening edge of No. 4 is projected from the opening edge of the outer cap body 35, and the screw portion 32 is formed on the outer peripheral surface thereof. On the upper end surface of the outer cap body 35, a circular see-through window 36 closed by the inner cap 34 is formed at a position facing the upper end portion of the filtration cylinder body 3.

A circulation passage 28 is formed between the filtration cylinder 3 and the hollow case 2 and extends from the communication port 7 to the water treatment section 5.
The water that has entered is guided from the lower part to the upper part while circulating in the circulation passage 28. The upper end of the filter cylinder 3 has a water intake port 29,
The lower end is a water outlet 30, and the water reaching the upper end of the filter cylinder 3 is taken into the inside of the filter cylinder 3 from the water intake 29 and treated, and the treated water is taken out. It exits from the outlet 30 and flows out through the second outlet 24.

The filtration cylinder 3 has a structure in which a water treatment material composed of a plurality of layers is filled in a cylindrical case, and the water intake port 29 and the water intake port 30 are closed by a filter such as a non-woven fabric. There is. By checking the filter of the water intake port 29 through the see-through window 36, it is possible to judge the degree of wear and the degree of contamination of the filter cylinder 3.

In the water purifier having the above structure, when hot water flows in through the inflow port 8, it is not processed and is discharged from the first outflow port 9 or flows into the water treatment section 5 and passes through the water treatment material. After being treated, it is discharged from the second outlet 24.
In this case, since the inner surface of the hollow case 2 is protected by the cover body 40 in the vicinity of the first outflow port 9 and by the cover body 50 in the vicinity of the second outflow port 24, the hot water is directly blown into the hollow case. Never hit 2. Therefore, the hollow case 2 in the vicinity of the outlets 9 and 24 has a small temperature rise and is not directly applied with pressure, so that the chromium plating is not likely to be peeled off. Although the cover bodies 40 and 50 are used as the chromium-plated protective walls in this embodiment, the present invention is not limited to this, and the protective walls may be formed by synthetic resin coating.

[0025]

As described above, according to the present invention, in a water purifier in which the hollow case is made of synthetic resin and the entire surface of which is metal-plated, at least the inner surface of the hollow case near the outlet is covered with a protective wall. Therefore, even if hot water is supplied, it is possible to prevent peeling of the metal plating in the vicinity of the outlet.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a water purifier according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of a water purifier according to an embodiment of the present invention.

FIG. 3 is a partially cutaway front view showing a water path.

FIG. 4 is a cross-sectional view in which a valve body of a switching unit in the water purifier is partially broken.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 1 Water purifier 2 Hollow case 8 Inlet 9,24 Outlet 40,50 Cover body

Claims (1)

(57) [Scope of utility model registration request] 1. A water purifier in which a hollow case having a water inlet and a water outlet is made of a synthetic resin and whose entire surface is metal-plated, wherein at least an inner surface of the hollow case near the outlet has a protective wall. Water purifier covered with.