JPH08267055A - Water purifying device - Google Patents

Abstract

PURPOSE: To decrease passages, etc., to be disposed at a changeover cock, to decrease the number of parts, such as gaskets, and to reduce a cost by forming a water feed passage communicating with a water purifying cartridge and a communicating port existing to face any of respective water flow paths at the changeover cock and forming the plural water flow paths around this port. CONSTITUTION: A communicating port 17 is positioned to face a discharged path 10 and a connecting path 9 is communicated with the shower path via a water flow path 18 and the city water is ejected out of a discharge port 13 for shower when a changeover cock 14 is set in the shower position. On the other hand, a communicating port 17 exists to face the shower path to close the shower path and simultaneously the water flow path 18 connects the connecting path 9 to the water discharge path 10 and the city water is ejected out of a discharge port 11 when the changeover cock is set in a raw water position. The communicating port 17 exists to face the connecting path 9 and the city water is passed through a water purifying cartridge 4 via a water feed path 16 and a purifying path 28 when the changeover cock is set at the water purifying position. The purified water is ejected out of a purified water discharge port 2 after the water is purified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier for purifying tap water with a filter medium contained in a water purification cartridge.

[0002]

2. Description of the Related Art For example, in a case where tap water is filtered by a filter medium such as activated carbon which is attached directly to a faucet of a water supply and stored in a water purification cartridge, as disclosed in Japanese Patent Publication No. 6-57283, for example. By rotating the rotary valve 40, tap water is directly discharged from the supply port 44 or the shower hole 61, or is purified after passing through the cartridge 4 and then discharged from the supply port.

[0003]

In this case, since a large number of water passage holes are formed on the peripheral wall surface of the rotary valve, a large number of packings are required to seal these holes, increasing the number of parts and increasing the number of assembling steps. The cost was increased due to the increase.

Therefore, the present invention aims at cost reduction by reducing the number of parts and the number of assembling steps.

[0005]

According to the present invention, tap water supplied from a connection port is filtered by a filter medium contained in a water purification cartridge and then discharged from a purified water discharge port, and a water passage is formed by rotating a cylindrical switching cock. The tap water supplied from the connection port is spouted from the spout, or spouted from the shower spout opened around this spout, and the switching knob is connected to one end of the switching cock. In, the connection port and the connection passage that communicates this connection port with the chamber wall of the storage chamber that stores the switching cock, and the water discharge port and the water discharge passage that communicates this water discharge port with the chamber wall of the storage chamber are opposed to each other on the same axis. The opening is located and the shower passage communicating with the shower spout is opened at approximately 90 ° phase position between the connection passage of the storage chamber chamber wall and the opening of the water discharge passage, and at the other end of the switching cock. Purification Water supply passage communicating with the cartridge,
The peripheral wall is positioned to face any one of the connection passage, the water discharge passage, and the shower water outlet, and each of the communication ports that communicates with the water supply passage is opened.Around this opening, the packing and the communication port are communicated with the shower passage. Then, a water passage connecting the connection passage and the water discharge passage, and connecting the connection passage and the shower passage when the communication port is located in communication with the water discharge passage is provided.

[0006]

[Function] When tap water is directly supplied from the spout, the switching knob is operated to rotate the switching cock, the communication port is positioned opposite to the shower passage, and the shower passage is closed with packing, and By connecting the connection passage to the water discharge passage via the water passage, the tap water supplied from the connection passage is supplied to the water discharge passage via the water passage and is discharged from the water discharge port.

Further, when supplying purified water, the switching cock is rotated so that its communication port is located opposite to the connection passage, so that the tap water supplied from the connection passage is purified through the communication passage-water supply passage. Water is supplied to the cartridge, and after being filtered by the filter material in the cartridge, water is discharged from the purified water discharge port.

Further, when tap water is discharged in the form of a shower, the connection passage is connected to the shower passage via the communication passage by rotating the switching cock so that the communication port faces the water discharge passage. The tap water supplied to the aisle is a connecting passage-
Water is discharged from the shower spout through the shower passage.

With these configurations, the passages and the like provided in the switching cock can be greatly reduced, and the cost can be reduced by reducing the number of parts such as packing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described first with reference to FIG. 1. Reference numeral 1 is a water purifier formed by molding a resin, a main body 2 and a lower cover 3 fixed to the bottom surface of the main body with screws.
And a water purification cartridge 4 which is removably mounted on the upper surface of one side of the main body and contains therein a filter medium such as activated carbon or a hollow fiber membrane.

Further, the main body 2 has a connection port 6 which is connected to a tap water faucet 5 on the upper surface of the other side, as shown in FIG. 2, and a cylindrical storage chamber is provided below the connection port. 7
And the connection port 5 is provided on the chamber wall 8 of the storage chamber.
A connection passage 9 communicating with the connection passage 9 and a water discharge passage 10 arranged on the same axis as the connection passage are opened, and the water discharge passage is connected to a water discharge port 11 opened in the lower cover 3.

Reference numeral 12 is a shower passage opened at a position shifted in phase by approximately 90 ° from the openings of the connection passage 9 and the water discharge passage 10 of the chamber wall 8 and opened around the water discharge outlet 11 of the lower cover 3. It communicates with a shower spout 13 composed of a large number of pores.

A cylindrical switching cock 14 is rotatably accommodated in the accommodating chamber 7. The switching knob 15 is connected to one end of the accommodating chamber 7, and the water supply passage 16 is provided at the substantially central portion of the other end.
And the peripheral wall 17 is located opposite to the openings of the connection passage 9 and the water discharge passage 10 of the chamber wall 8 and the shower passage 12 and communicates with any one of them at the rotational position, When the communication port 17 is in communication with 16, and the communication port is located at the "raw water" position facing the shower passage 12 shown in FIG. 2, the connection passage 9 is connected to the water discharge passage 10
When the communication port 17 is located at the “shower” position facing the water discharge passage 10 shown in FIG. 3, the connection passage 9 and the water passage 18 that communicates with the shower passage 12 are formed.

As shown in FIG. 4, numeral 19 designates a band-shaped packing which is mounted around the communication port 17 so as to surround the communication port 17, and the communication port has the connection passages 9, the water discharge passages 10, and the shower passage 12 respectively. It is intended to prevent water leakage from the connecting portion when it is located opposite to.

Reference numeral 20 denotes a click metal ball which is arranged in parallel with the water discharge passage 10 of the chamber wall 8 and which is constantly urged by a spring 21 so as to come into contact with the peripheral wall of the switching cock 14 to be the switching cock. When 14 is located at the “purified water” position where the communication port 17 communicates with the connection passage 9 and at the “raw water” and “shower” positions, it is fitted into the recessed groove 21 ... Depressed on the outer surface of the peripheral wall. Then, the switching cock is positioned.

Reference numerals 22 and 23 denote O-rings for preventing water leakage, which are attached to the outer peripheral surface of the other end of the switching cock 14 and the outer peripheral surface of the concave groove 21 ...

Reference numeral 24 is an insertion groove that is opened upward on one side upper surface of the main body 2 and has a thread groove 25 formed on the inner side surface thereof. Clean water channel 27 that communicates with the clean water outlet 26 that opens on the lower surface
And a water purification passage 28 communicating with the water supply passage 16 of the switching cock 14 is opened on the side surface.

Reference numeral 29 indicates that the pressure in the purified water passage 28 is a spring.
It is a pressure relief valve that opens the passage 31 when the pressure exceeds a predetermined pressure set by 30, etc., and discharges the water in the purified water passage 28 to the outside through the vent 32 of the lower cover 3.

Thus, in the above embodiment, the position where the switching cock 14 is rotated in the most counterclockwise direction as shown in FIG. 3 is the "shower" position, and in this position, the communication port 17 is located opposite to the water discharge passage 10. Moreover, the connection passage 9 is communicated with the shower passage 12 through the water passage 18, and the tap water supplied from the connection passage 9 through these passages is ejected from the shower spout 13.

When the switching cock 14 is rotated clockwise from the "shower" position and set to the "raw water" position shown in FIG. 2, the communication port 17 is positioned opposite to the shower passage 12 and the strip packing 19 is formed. At the same time that the shower passage 12 is closed, the water passage 18 connects the connection passage 9 and the water discharge passage 10, and tap water supplied from the connection passage 9 is ejected from the water discharge port 11.

Further, when the switching cock 14 is further rotated clockwise from the "shower" position to set it to the "purified water" position shown in FIG. 1, the communication port 17 is located opposite to the connection passage 9, and this connection is made. Tap water supplied from the passage
16-After purifying by passing water to the water purification cartridge 4 through the water purification passage 28, the water is jetted from the water purification outlet through the water purification passage 27 from this water purification cartridge.

Further, at the "raw water", "shower", and "purified" positions of the switching cock 14, the metal ball 20 has the concave groove 21.
・ Insert the switch cocks 14 by inserting them inside.

[0023]

According to the structure of the present invention, the number of water passages formed in the switching cock is reduced as much as possible, so that the number of parts such as packing for preventing water leakage from the water passage can be reduced, and the number of parts and the number of assembling steps can be reduced. It is possible to improve work efficiency and reduce costs by using.

[Brief description of drawings]

FIG. 1 is a front vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a side vertical sectional view of the same.

FIG. 3 is a side vertical sectional view for similarly explaining the operation.

FIG. 4 is a plan view of the switching cock.

[Explanation of symbols]

 4 Water purification cartridge 6 Connection port 7 Storage chamber 8 Chamber wall 9 Connection passage 10 Water discharge passage 11 Water discharge outlet 12 Shower passage 13 Shower water discharge outlet 14 Switching cock 15 Switching knob 16 Water supply passage 17 Communication passage 18 Water passage 19 Packing 26 Clean water outlet

Claims (1)

[Claims] 1. The tap water supplied from the connection port is filtered by a filter material housed in a water purification cartridge, and then discharged from the purified water discharge port, and the water passage is switched by rotating a cylindrical switching cock. Discharge tap water that has been supplied from the spout, or spout water from the shower spout that opens around this spout, and connect the switching knob to one end of the switching cock, in the connection port and A connection passage that communicates this connection port with the chamber wall of the storage chamber that accommodates the switching cock, the water discharge port and the water discharge passage that communicates this water discharge port with the chamber wall of the storage chamber are positioned on the same axis and opposite to each other. And a shower passage communicating with the shower spout at an approximately 90 ° phase position between the connection passage of the storage chamber chamber wall and the opening of the water discharge passage, and the other of the switching cocks. The water supply passage communicates with the water purification cartridge in the section, and the peripheral wall faces any one of the connection passage, the water discharge passage, and the shower water outlet, and each of the communication holes communicates with the water supply passage is opened, and the periphery of the opening is formed. Has
When the packing and the communication port are in communication with the shower passage, the connection passage and the water discharge passage are connected, and when the communication port is in communication with the water discharge passage, a water passage that connects the connection passage and the shower passage is provided. Water purifier.