JP2002235348A - Switching valve and body of coupling thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching valve which reduces a load during an operation of switching between a water passage for making raw water discharged in a straight or shower-like manner and a water passage for conveying the raw water to a water purifier, and enables the operation of the switching to be simply and safely performed. SOLUTION: The switching valve, which is disposed between a faucet of an aqueduct and the water purifier, is provided with a raw water inflow port capable of being coupled to the faucet, respective raw water discharge ports for discharging the raw water as it is in the straight manner or in the shower- like manner, and a raw water conveyance port capable of being connected to the water purifier. An inside of a switching valve body composed of a rigid plastic is provided with a water passage switching mechanism for performing the switching between the water passage to each of the raw water discharge ports and the water passage to the raw water conveyance port by a turning operation of a switching lever. A ratchet mechanism is disposed in a part to which a turn is transferred by the switching lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching valve disposed between a water tap and a water purifier, and more particularly to a switching valve attached to the water tap to switch between a raw water channel and a water channel for sending water to the water purifier. And a switching valve for discharging water in a straight or shower shape.

[0002]

2. Description of the Related Art Conventionally, a switching valve as shown in FIG. 9 has been known as a switching valve. In FIG. 9, 1 is a switching valve body,
2 is a raw water channel, 3 is a cylindrical portion inside which a water channel is formed and is rotatable with respect to an axis. 4 is a packing which makes the water channel 2 and the cylindrical portion 3 closely contact with each other, and 5 and 6 are openings. The cylinder 3 is provided with its phase shifted in the longitudinal direction, 7 is a lever for rotating the cylinder 3, 8 is a fixing ring attached to a faucet, 9 is a raw water straight outflow port communicating with the opening 5, 10 is an opening Part 6
A raw water shower outlet, which communicates with the shower head, is a shower cap fitting screw portion.

In the switching valve shown in FIG. 9, when the cylinder 3 is rotated by the lever 7 so that the opening 5 of the cylinder 3 and the raw water straight outflow port 9 coincide with each other, the raw water flows from below the switching valve main body 1. Spout water straight. The cylinder part 3 by the lever 7
Is rotated, and the opening 6 of the cylindrical part 3 and the raw water shower outlet 1 are rotated.
When 0 is matched, the raw water is discharged from under the switching valve main body 1 in a shower shape.

However, in such a conventional switching valve, since the packing is in close contact with the rotatable cylinder,
There is a drawback that the load due to the rotation of the cylinder is large, and the lever is difficult to turn.In order to reduce this load, there is also a means of applying grease to the contact portion of the packing with the cylinder,
When the operating time of the switching valve is prolonged, the applied grease flows out with water, causing a problem that its effect is lost.
Further, in the conventional switching valve, since an operation of turning the lever and fixing it in a predetermined position is required, there is a trouble that the switching operation cannot be performed unless the lever is pinched with a finger, and the finger is wet or the hand is With the object in
There are inconveniences in the switching operation, such as not being able to slide a finger from the lever or turning the lever itself.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to reduce the load in switching operation between a raw water channel for discharging raw water in a straight shape or a shower shape and a water channel for sending water to a water purifier, and to achieve simple and safe operation. An object of the present invention is to provide a switching valve capable of performing a switching operation and a combination of the switching valve and the water purifier.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a switching valve disposed between a water tap and a water purifier, which discharges raw water as it is in a straight or shower shape, as it can be connected to the tap. It has a raw water discharge port that can be connected to each raw water discharge port and a water purifier, and switches the water path to each raw water discharge port or raw water supply port by rotating the switching lever inside the switching valve body made of hard plastic. There is a switching valve having a water channel switching mechanism, a rotation transmitting portion by a switching lever, a switching valve provided with a ratchet mechanism, and a combined body in which a connection portion of a water purifier is connected to a raw water inlet of the switching valve.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the switching valve of the present invention, FIG. 2 is a bottom view of the switching valve of the present invention, and FIG. 3 is a cross-sectional view taken along line S-S of FIG. 1 and 2, reference numeral 21 denotes a switching valve body, 22
Is a switching lever, 23 is a raw water inlet which can be fixed to a faucet, 2
4 is a raw water straight discharge port, 25 is a raw water shower discharge port, and 26 is a raw water supply port. In FIG. 3, 38 is a ratchet wheel, 39 is a rotation hook, 40 is a return spring, 41 is a stopper, and 42 is a spring receiver.

1 and 2, the switching valve according to the present invention comprises:
A raw water inlet 23 that can be connected and fixed to a faucet, a raw water straight discharge port 24 that discharges raw water straight as it is, a raw water shower discharge port 25 that discharges raw water as it is in a shower form, and a raw water inlet 26 that can be connected to a water purifier. A water channel switching mechanism for switching the water channel to each of the raw water discharge ports 24 and 25 or the raw water water supply port 26 by rotating the switching lever 22 is provided inside the switching valve body 21. In addition, a ratchet mechanism including a ratchet wheel 38 and a rotation hook 39, a return spring 40 for restoring the switching lever to its original predetermined position, a stopper 41, and a switching lever including a spring receiver 42 are provided in the rotation transmitting portion by the switching lever 22. A restoration mechanism is provided.

The size and shape of the switching valve body 21 and the switching lever 22 are not particularly limited, but are preferably a tough, pressure-resistant and heat-resistant hard plastic such as ABS resin or polycarbonate resin. . The raw water inlet 26 preferably has a structure that can be connected to a water purifier, and has a fitting structure that is detachably fitted to a connection portion of the water purifier.
Any of a coupler type, a bayonet type and the like may be used.

In the switching valve of the present invention, the water channel switching mechanism provided inside the switching valve main body uses a ball valve in which the water channel is opened and closed by a ball which is moved by an arm of a rotary shaft of a switching lever and seals an opening. Preferably, the mechanism is a mechanism. Such a ball valve type water channel switching mechanism will be described with reference to FIGS. 3 is a cross-sectional view taken along the line SS in FIG. 1, FIG. 4 is a vertical cross-sectional view taken along the line AA in FIG. 3, and FIG.
6 is a vertical sectional view taken along the line CC in FIG. 3.

In FIG. 3, 27 is a seal ball for water purification, 28 is a seal ball for raw water shower, 29 is a seal ball for straight raw water straight, 30 is a rotating shaft with an arm provided with an arm axisymmetrically, 31 is an O-ring, 32 Denotes a washer, and 33 denotes a stop screw. 4 to 6, 34 is a raw water inlet, 35 is a raw water shower opening,
36 denotes an opening for water purification, and 37 denotes an opening for raw water straight.

FIGS. 3 to 6 show a state in which the water channel is switched to the raw water supply port 26. In this switched state, as shown in FIG. The sealing ball 27 for water purification, which closes the portion 36 by water pressure, is pushed up by the arm on one side of the rotating shaft 30 with the arm, opening the opening 36 for water purification and forming a water channel to the raw water water supply port 26. On the other hand, as shown in FIG. 4, the raw water shower opening 35 is closed by a raw water shower seal ball 28, and as shown in FIG. 6, the raw water straight opening 37 is formed by a raw water straight seal ball 29. It is closed and no channel is formed.

The difference in operation of the switching valve is caused by the fact that the arm of the rotary shaft 30 with the arm is provided with the phase shifted in the longitudinal direction of the rotary shaft 30. Preferably, the arm of the rotary shaft 30 with the arm is 60 °. Are provided with their phases shifted from one another. Therefore, when the rotating shaft 30 with the arm is rotated by 60 ° by the switching lever 22 connected to the rotating shaft 30 with the arm, the rotating shaft 30 with the arm fits on the opening 35 for the raw water shower and closes the opening 35 for the raw water shower by water pressure. The seal ball 28 is pushed up by the arm on one side of the rotating shaft 30 with an arm, and opens the raw water shower opening 35 to form a water passage. On the other hand, the water purification opening 36 is closed by the water purification seal ball 27,
The raw water straight openings 37 are closed by the raw water straight seal balls 29, and no water passages are formed.

Further, when the rotating shaft 30 with the arm is further rotated by 60 ° by the switching lever 22, the rotary shaft 30 is accommodated in the opening 37 for the raw water straight and the opening 37 for the raw water straight.
The raw water straight seal ball 29 is closed by water pressure, is pushed up by one arm of the rotating shaft 30 with the arm, and opens the raw water straight opening 37.
Form a waterway. On the other hand, the opening for water purification 36 is closed by the seal ball 27 for water purification, and the opening for raw water shower 35 is closed by the seal ball 28 for raw water shower, and no water channel is formed. The switching operation of the water channel is performed sequentially or arbitrarily by the switching lever 22.

The material of the channel switching mechanism is not particularly limited, but the seal balls 27, 28 and 29 are preferably made of a soft rubber such as NBR or silicon which has excellent sealing properties. Is preferably a polyacetal resin having excellent pressure resistance and abrasion resistance.

The ratchet mechanism and the switching lever restoring mechanism provided on the rotation transmitting portion by the switching lever in the switching valve of the present invention will be described in more detail with reference to FIGS. FIG. 7 is an exploded perspective view of a configuration of a rotation transmitting unit by the switching lever 22, and FIG. 8 is a front view of a ratchet mechanism. In FIG. 7, a ratchet mechanism including a ratchet wheel 38, a rotation hook 39, a return spring 40, and a stopper 4 are arranged on the axis of the rotation shaft 30 with the arm.
1. A switching lever restoring mechanism including a spring receiver 42 is disposed at a rotation transmitting portion at the root of the switching lever 22. The ratchet mechanism and the switching lever restoring mechanism operate in conjunction with the turning operation by the switching lever 22. Rotary shaft 30 with arm
Rotates.

When the switching lever 22 is depressed downward by 60 °, the rotary hook 39 rotates. At this time, the hook of the rotary hook 39 catches on the teeth of the ratchet wheel 38.
The ratchet wheel 38 and the rotating shaft 30 with the arm are rotated. When the switching lever 22 is released from being depressed by 60 ° downward, only the switching lever 22
And returns to the original position by the reaction force of the return spring 40 limited by the above. The setting of the return position of the switching lever 22 is performed by the switching lever 2
Stopper 4 protruding from the outer periphery of the rotation transmitting portion at the base of 2
1 and a stopper 41 protruding from the outer wall of the switching valve main body 21. Preferably, the switching lever 22 is set at a position 45 ° above the horizontal position of the switching lever 22.

When the switching lever 22 returns to its original position, the rotary hook 39 also tries to rotate in the reverse direction. However, as shown in FIG. 8, the hook of the rotary hook 39 is thin and flexible. Thus, the rotation hook 39 is connected to the switching lever 22.
At the same time, it stays in that position without reverse rotation, and is placed in a state where it can move to the next tooth of the ratchet wheel 38 when pushing down the next switching lever 22 by 60 degrees downward.

The above-described single rotation operation of the switching lever is performed as one water channel switching operation unit. Each time the switching lever is pressed down by 60 ° from a predetermined position, the rotation of the water channel switching mechanism with the arm is performed. As the shaft 30 rotates by 60 ° in the same direction, the switching of the water channel is performed sequentially.

Ratchet wheel 38, rotating hook 39
The size and shape are not particularly limited as long as they have the above-mentioned operability, but the material is preferably a plastic having excellent pressure resistance, abrasion resistance and strength, such as polyacetal resin.

In the switching valve of the present invention, the switching order of the water channels, the depression angle of the switching lever, the restoring angle of the switching lever, and the like are not limited to the above description, and can be changed as appropriate. Further, the direction in which the switching lever is pushed down can be replaced by pushing up the switching lever instead of pushing down the switching lever.

[0022]

1 to 8 show an embodiment of a switching valve having a switching mechanism of a ball valve type inside a switching valve body and having a switching lever restoring function, as an embodiment, at the front, bottom and main parts of the embodiment. The cross section, the vertical section, and the configuration state are shown.

[0023]

According to the switching valve of the present invention, the switching operation between the raw water channel for discharging the raw water in a straight or shower shape and the water channel for feeding the water purifier can be performed by pushing down the switching lever in one direction. The switching of the water path can be performed sequentially only by pushing down the switching lever to be restored in one direction, so that the switching operation can be easily and safely performed even when the finger is wet or the hand is held. In addition, the switching mechanism inside the switching valve body is a switching mechanism using a ball valve that opens and closes a water passage by a ball that is moved by an arm of a rotating shaft of the switching lever, so that the load in the switching operation is small and smooth. be able to. The switching valve of the present invention is used by being fixed to a water tap and connected to a raw water inlet of a water purifier directly connected or a stationary water purifier, and a straight or shower-like spout of raw water is supplied to the switching valve by the switching valve. To obtain purified water.

[Brief description of the drawings]

FIG. 1 is a front view of a switching valve of the present invention.

FIG. 2 is a bottom view of the switching valve of the present invention.

FIG. 3 is a cross-sectional view taken along a line SS in FIG. 1;

FIG. 4 is a vertical sectional view taken along the line AA of FIG. 3;

FIG. 5 is a vertical sectional view taken along line BB of FIG. 3;

FIG. 6 is a vertical sectional view taken along the line CC of FIG. 3;

FIG. 7 is an exploded perspective view of a configuration of a rotation transmitting portion of a switching lever.

FIG. 8 is a front view of a ratchet mechanism.

FIG. 9 is a partially cutaway perspective view of a conventional switching valve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Switching valve body 22 Switching lever 23 Raw water inlet which can be fixed to a faucet 24 Raw water straight discharge port 25 Raw water shower discharge port 26 Raw water water supply port 27 Seal ball for water purification 28 Seal ball for raw water shower 29 Seal ball for raw water straight 30 With arm Rotating shaft 31 O-ring 32 Washer 33 Stop screw 34 Raw water inlet 35 Raw water shower opening 36 Water purification opening 37 Raw water straight opening 38 Ratchet wheel 39 Rotating hook 40 Return spring 41 Stopper 42 Spring receiver

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D060 BB09 BC12 BE02 BE15 CB03 3H063 BB08 BB18 CC03 DA03 DB37 DC02 EE07 GG06 3H067 AA04 AA32 BB08 BB13 BB14 CC32 CC45 DD04 DD12 DD24 DD45 EA21 ED20 FF17 GG13

Claims (12)

[Claims] 1. A switching valve disposed between a water tap and a water purifier, wherein the raw water inflow port is connectable to the faucet, and each raw water discharge port and water purifier for discharging raw water as it is in a straight or shower shape. Provided with a connectable raw water inlet, and a water path switching mechanism that switches the water path to each raw water discharge port or raw water inlet by rotating the switching lever inside the switching valve body made of hard plastic, A switching valve in which a ratchet mechanism is arranged in a rotation transmission unit using a lever. 2. The switching valve according to claim 1, further comprising a switching lever restoring mechanism for restoring the switching lever to an original predetermined position. 3. The switching valve according to claim 2, wherein the switching lever restoring mechanism is provided in a rotation transmitting section by the switching lever. 4. The switching valve according to claim 2, wherein the switching lever restoring mechanism is a mechanism for restoring the switching lever by a return spring. 5. The switching valve according to claim 2, wherein the switching of the water path is performed each time the switching lever is pushed down or pushed up. 6. The switching valve according to claim 1, wherein the water channel switching mechanism has a rotating shaft having an arm that rotates in conjunction with the switching lever. 7. The switching valve according to claim 6, wherein the rotation shaft having the arm is made of polyacetal resin. 8. A switching mechanism using a ball valve in which a water path is opened and closed by a ball moved by an arm of a rotary shaft having an arm which rotates in conjunction with a switching lever. 2. The switching valve according to claim 1. 9. The switching valve according to claim 8, wherein the ball is made of soft rubber. 10. The switching valve according to claim 5, wherein the rotary shaft having the arm is provided with the phase shifted by 60 ° in the longitudinal direction of the rotary shaft. 11. The switching valve according to claim 1, wherein the raw water supply port has a fitting structure that is detachably fitted to a connection portion of the water purifier. 12. A combined body, wherein a connection part of a water purifier is connected to a raw water supply port of the switching valve according to any one of claims 1 to 11.