JP3833625B2 - Switching valve and its combination - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switching valve disposed between a water faucet and a water purifier, and more specifically, is attached to a water faucet, switches between a raw water channel and a water channel that supplies water to the water purifier, and the raw water is straight or showered. The present invention relates to a switching valve for discharging water.
[0002]
[Prior art]
Conventionally, a switching valve as shown in FIG. 9 is known as a switching valve. In FIG. 9, 1 is a switching valve body, 2 is a raw water channel, 3 is a cylindrical part, and a water channel is formed therein and is rotatable with respect to the axis, and 4 is a packing between the water channel 2 and the cylindrical part 3. Closely attached, 5 and 6 are openings, and are provided with a phase shifted in the longitudinal direction of the cylindrical part 3, 7 is a lever that rotates the cylindrical part 3, 8 is a fixing ring attached to the faucet, 9 is an opening 5 The raw water straight outlet, 10 is a raw water shower outlet, communicating with the opening 6, and 11 is a shower cap fitting screw.
[0003]
In the switching valve shown in FIG. 9, when the cylindrical portion 3 is rotated by the lever 7 so that the opening 5 of the cylindrical portion 3 and the raw water straight outlet 9 are matched, the raw water is straightened from below the switching valve body 1. Water is discharged. When the cylindrical portion 3 is rotated by the lever 7 so that the opening 6 of the cylindrical portion 3 and the raw water shower outlet 10 are matched, the raw water is discharged from the lower side of the switching valve body 1 in a shower shape.
[0004]
However, in such a conventional switching valve, since the packing is in intimate contact with the rotatable cylinder portion, there is a problem that the load due to the rotation of the cylinder portion is large and the lever is difficult to turn. In order to reduce this, there is a means to apply grease to the contact part with the cylindrical part of the packing. However, if the switching valve is used for a long time, the applied grease will flow out with water, and the effect will be lost. . In addition, since the conventional switching valve requires an operation of turning the lever to fix it in place, there is an annoyance that the switching operation cannot be performed unless the lever is pinched with a finger. When holding the object, it is inconvenient for the switching operation such as sliding the finger from the lever or turning the lever itself.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a switching valve that has a small load in switching operation between a raw water channel that discharges raw water in a straight or shower shape and a water channel that supplies water to a water purifier, and that can be switched easily and safely. And providing a combined body of a switching valve and a water purifier.
[0006]
[Means for Solving the Problems]
The first gist of the present invention is a switching valve disposed between a water faucet and a water purifier, which is a raw water inlet that can be connected to the faucet, and each raw water outlet that discharges the raw water in a straight or shower form. And a water channel switching mechanism for switching the water channel to each raw water discharge port or raw water water supply port by rotating the switching lever inside the switching valve body provided with the raw water water supply port connectable to the water purifier, A switching valve in which a ratchet mechanism is arranged in a rotation transmission portion by a switching lever, a switching lever restoring mechanism for restoring the switching lever to an original predetermined position by a return spring is arranged, and the switching valve main body has the This is a switching valve that is provided with a spring support for a return spring and that switches the water channel one by one each time the switch lever is pushed down . The second gist of the present invention is a switching valve arranged between a water faucet and a water purifier, which is a raw water inlet that can be connected to the faucet, and each raw water outlet that discharges the raw water in a straight or shower form. And a water channel switching mechanism for switching the water channel to each raw water discharge port or raw water water supply port by rotating the switching lever inside the switching valve body provided with the raw water water supply port connectable to the water purifier, A switching valve in which a ratchet mechanism is arranged in a rotation transmission part by a switching lever, and a switching lever restoring mechanism for restoring the switching lever to an original predetermined position by a return spring is arranged, and the return to the switching lever This is a switching valve that is provided with a spring support for the spring, and that switches the water channel sequentially each time the switch lever is pushed down .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the present invention will be described with reference to the drawings.
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 SS of FIG. 1-2, 21 is a switching valve body, 22 is a switching lever, 23 is a raw water inlet that can be fixed to a faucet, 24 is a raw water straight outlet, 25 is a raw water shower outlet, and 26 is a raw water inlet. . 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.
[0008]
1 to 2, the switching valve of the present invention includes a raw water inlet 23 that can be connected and fixed to a faucet, a raw water straight outlet 24 that discharges raw water in a straight shape, and a raw water shower discharge that discharges raw water as it is in a shower shape. A raw water feed port 26 that can be connected to the outlet 25 and the water purifier is provided, and the water path is switched to each raw water discharge port 24, 25 or the raw water feed port 26 by rotating the switching lever 22 inside the switching valve body 21. It has a water channel switching mechanism. In addition, the rotation transmission portion by the switching lever 22 includes a ratchet wheel 38, a ratchet mechanism comprising 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 comprising a spring receiver 42. A restoring mechanism is provided.
[0009]
The size and shape of the switching valve body 21 and the switching lever 22 are not particularly limited, but are preferably tough, pressure-resistant, heat-resistant hard plastics such as ABS resin and polycarbonate resin. The raw water feed port 26 has a structure that can be connected to a water purifier, and preferably has a fitting structure that can be freely attached to and detached from the connection portion of the water purifier, and may be any of a screw type, a coupler type, a bayonet type, and the like.
[0010]
In the switching valve of the present invention, the water channel switching mechanism in the switching valve body is a switching mechanism using a ball valve that opens and closes the water channel by a ball that is moved by the arm of the rotating shaft of the switching lever and seals the opening. The ball valve type water channel switching mechanism is preferably described with reference to FIGS. 3 is an SS cross-sectional view of FIG. 1, FIG. 4 is an AA longitudinal sectional view of FIG. 3, FIG. 5 is a BB longitudinal sectional view of FIG. 3, and FIG. -C is a longitudinal sectional view.
[0011]
In FIG. 3, 27 is a water-purifying seal ball, 28 is a raw water shower seal ball, 29 is a raw water straight seal ball, 30 is an arm-equipped rotating shaft, 31 is an O-ring, 32 is a washer, Reference numeral 33 denotes a set screw. 4 to 6, reference numeral 34 denotes a raw water inlet, 35 denotes a raw water shower opening, 36 denotes a water purification opening, and 37 denotes a raw water straight opening.
[0012]
3 to 6 show a state where the water channel to the raw water inlet 26 is switched. In this switched state, as shown in FIG. 5, the water purification opening 36 is accommodated on the water purification opening 36. The water-purifying seal ball 27 closed by water pressure is pushed up by an arm on one side of the arm-equipped rotating shaft 30 to open the water-purifying opening 36 and form a water channel to the raw 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. They are blocked and no water channel is formed.
[0013]
The difference in the operation of the switching valve is caused by the fact that the arm of the rotary shaft 30 with the arm is provided with a phase shifted in the longitudinal direction of the rotary shaft 30. Preferably, the arm of the rotary shaft 30 with the arm has a phase of 60 °. Provide a staggered position. Therefore, when the arm-equipped rotating shaft 30 is rotated by 60 ° by the switching lever 22 connected to the arm-equipped rotating shaft 30, the raw water shower opening 35 is received on the raw water shower opening 35 and closed by the water pressure. The seal ball 28 is pushed up by an arm on one side of the rotary shaft 30 with an arm, opens the raw water shower opening 35, and forms a water channel. On the other hand, the water-purifying opening 36 is closed by the water-purifying seal ball 27, and the raw water straight opening 37 is closed by the raw water-straight sealing ball 29, so that no water channel is formed.
[0014]
Further, when the arm-equipped rotating shaft 30 is further rotated by 60 ° by the switching lever 22, the raw water straight seal ball 29 that fits on the raw water straight opening 37 and closes the raw water straight opening 37 by water pressure is provided with the arm. It is pushed up by an arm on one side of the rotating shaft 30 to open the raw water straight opening 37 and form a water channel. On the other hand, the water-purifying opening 36 is closed by the water-purifying seal ball 27, and the raw water shower opening 35 is closed by the raw water shower-sealing ball 28, so that no water channel is formed. Such a water channel switching operation is sequentially or arbitrarily performed by the switching lever 22.
[0015]
The material of the water channel switching mechanism is not particularly limited, but the material of the seal balls 27, 28, 29 is preferably a soft rubber such as NBR or silicon having excellent sealing properties, and the material of the rotating shaft 30 with the arm. Is preferably a polyacetal resin excellent in pressure resistance and wear resistance.
[0016]
The ratchet mechanism and the switching lever restoring mechanism disposed in the rotation transmission 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 the configuration of the rotation transmission portion by the switching lever 22, and FIG. 8 is a front view of the ratchet mechanism portion. In FIG. 7, a ratchet mechanism including a ratchet wheel 38 and a rotation hooking claw 39 and a switching lever restoring mechanism including a return spring 40, a stopper 41, and a spring receiver 42 are arranged on the axis of the rotating shaft 30 with an arm. The ratchet mechanism and the switching lever restoring mechanism are operated in conjunction with the pivoting operation by the switching lever 22 and the armed rotary shaft 30 is pivoted.
[0017]
When the switching lever 22 is pushed downward by 60 °, the rotary hook 39 rotates. At this time, the hook of the rotary hook 39 engages with the teeth of the ratchet wheel 38 and rotates the ratchet wheel 38 and the arm-equipped rotary shaft 30. Let When the state in which the switching lever 22 is pushed down by 60 ° is released, only the switching lever 22 returns to the original position by the reaction force of the return spring 40 limited by the spring receiver 42. The return position of the switching lever 22 is set by a stopper 41 protruding from the outer periphery of the rotation transmission portion at the base of the switching lever 22 and a stopper 41 protruding from the outer wall of the switching valve body 21, preferably the switching lever 22. Is set so that the switching lever 22 is 45 ° above the horizontal position.
[0018]
When the switching lever 22 returns to the original position, the rotary hook 39 also rotates in the reverse direction, but as shown in FIG. 8, by making the hook of the rotary hook 39 thin and flexible, The rotary hook 39 stays at that position without rotating in reverse with the switching lever 22, and is placed in a state where it can move to the next tooth of the ratchet wheel 38 when the next switching lever 22 is pushed downward by 60 °.
[0019]
The rotation operation of the switching lever once is performed as one unit for switching the water channel, and each time the switching lever is pushed downward by 60 ° from a predetermined position, the rotary shaft 30 with the arm of the water channel switching mechanism is moved. The water channel is sequentially switched by rotating 60 ° in the same direction.
[0020]
The ratchet wheel 38 and the rotary hook 39 are not particularly limited in size and shape as long as they have the above-described operability, but the material is pressure resistant, wear resistant, such as polyacetal resin, A plastic having excellent strength is preferred.
[0021]
In the switching valve of the present invention, the switching order of the water channel, the pressing-down angle of the switching lever, the restoring angle of the switching lever, etc. are not limited to the above description, and of course can be appropriately changed. The direction in which the lever is pushed down can be replaced by pushing up the switching lever instead of pushing down the switching lever.
[0022]
【Example】
1 to 8, as an embodiment, a switching mechanism of a ball valve system is provided inside the switching valve body, and a cross section and a longitudinal section at the front, bottom and main portions of the embodiment of the switching valve having a switching lever restoring function. Surface and configuration state are shown.
[0023]
【The invention's effect】
The switching valve of the present invention can perform a switching operation between a raw water channel that discharges raw water in a straight shape or a shower shape and a water channel that supplies water to the water purifier by pushing down the switching lever in one direction, and restores the switching lever. By simply pushing down in one direction, the water channel can be switched sequentially, so the switching operation can be performed easily and safely even when your finger is wet or when you have something in your hand. In addition, the switching mechanism inside the switching valve body is a switching mechanism using a ball valve that opens and closes a water channel by a ball that is moved by the arm of the rotating shaft of the switching lever. be able to. The switching valve of the present invention is used by being fixed to a water faucet, and is connected to a raw water inlet of a faucet direct connection type or stationary type water purifier. You can get clean 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.
3 is a cross-sectional view taken along the line SS of FIG.
4 is a vertical sectional view taken along line AA in FIG.
5 is a BB longitudinal sectional view of FIG. 3. FIG.
6 is a longitudinal sectional view taken along the line CC in FIG. 3. FIG.
FIG. 7 is an exploded perspective view of a configuration of a rotation transmission portion of a switching lever.
FIG. 8 is a front view of the ratchet mechanism.
FIG. 9 is a partially cutaway perspective view of a conventional switching valve.
[Explanation of symbols]
21 Switching valve body 22 Switching lever 23 Raw water inlet 24 that can be fixed to the faucet 24 Raw water straight outlet 25 Raw water shower outlet 26 Raw water outlet 27 Clean water sealing ball 28 Raw water shower sealing ball 29 Raw water straight sealing ball 30 With arm Rotating shaft 31 O-ring 32 Washer 33 Stop screw 34 Raw water inlet 35 Raw water shower opening 36 Purified water opening 37 Raw water straight opening 38 Ratchet wheel 39 Rotating hook 40 Return spring 41 Stopper 42 Spring holder

Claims (7)

This is a switching valve that is placed between the water faucet and the water purifier. The raw water inlet that can be connected to the faucet, each raw water outlet that discharges the raw water in a straight or shower form, and the raw water feed that can be connected to the water purifier Inside the switching valve body equipped with a water port, there is a water channel switching mechanism that switches the water channel to each raw water discharge port or raw water water supply port by turning operation of the switching lever, and a ratchet is attached to the rotation transmission part by the switching lever a switching valve mechanism is arranged, together with the switching lever restoring mechanism for restoring the original position by the return spring the該切換lever is disposed, receiving the spring of said return to the spring is disposed in the switching valve body A switching valve in which the water channel is sequentially switched each time the switching lever is depressed. This is a switching valve that is placed between the water faucet and the water purifier. The raw water inlet that can be connected to the faucet, each raw water outlet that discharges the raw water in a straight or shower form, and the raw water feed that can be connected to the water purifier Inside the switching valve body equipped with a water port, there is a water channel switching mechanism that switches the water channel to each raw water discharge port or raw water water supply port by turning operation of the switching lever, and a ratchet is attached to the rotation transmission part by the switching lever A switching valve in which a mechanism is arranged, a switching lever restoring mechanism for restoring the switching lever to its original predetermined position by a return spring is arranged, and a spring receiver of the return spring is arranged in the switching lever , A switching valve that sequentially switches the water channel each time the switch lever is depressed. The switching valve according to claim 1 or 2, wherein the water channel switching mechanism has a rotating shaft with an arm that rotates in conjunction with a switching lever. 4. The switching valve according to claim 3, wherein the water channel switching mechanism is a switching mechanism using a ball valve whose water channel opens and closes by a ball moving by an arm of a rotary shaft having an arm that rotates in conjunction with a switching lever. The switching valve according to claim 3 or 4, wherein the rotary shaft having the arm is provided with the arm shifted in phase by 60 ° in the longitudinal direction of the rotary shaft. The switching valve according to any one of claims 1 to 5, wherein the raw water supply port has a fitting structure that is detachable from a connection portion of the water purifier. The combined body which connected the connection part of the water purifier to the raw | natural water feed port of the switching valve of any one of Claims 1-6 .

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