JP4186271B2 - Urinal washing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a urinal cleaning device, and more particularly to a water channel changing mechanism of the urinal cleaning device.
[0002]
[Prior art]
Conventionally, as a urinal cleaning device, a part of the water that flowed out of the flush valve for cleaning the urinal was stored in a tank containing a cleaning agent, and then contained cleaning agent from the tank. It is known that water flows out into the urinal and the urinal is washed secondarily.
[0003]
In this urinal washing device, a flush valve, a tank containing a cleaning agent, a valve that is operated by a float to open and close the valve, and a flow path of water into the tank is shut off or communicated, and a flush valve And a communication passage for guiding water flowing out from the tank to the tank.
This urinal washing device operates as follows. First, a part of the water flowing out from the flush valve to the urinal flows into the tank through the communication path and the valve. Then, after a predetermined amount of water has accumulated in the tank, the valve is closed by the valve body that has risen as the float floats, blocking the inflow of water into the tank. Thereafter, when the inflow of water from the flush valve to the urinal is stopped, the float is lowered and the valve is opened, and the water containing the cleaning agent in the tank flows out to the urinal through the communication path.
[0004]
[Problems to be solved by the invention]
In this urinal washing device, when the water pressure flowing into the tank from the communication passage is too high, the valve body is forcibly pushed up by the water pressure before the predetermined amount of water accumulates in the tank. May be closed and the inflow of water into the tank may be blocked. In order to prevent this, in the urinal washing device described in Utility Model Registration No. 2565121, the water pressure flowing into the tank is reduced by passing the water flowing from the flush valve into the communication passage through the small diameter hole. I am letting.
[0005]
By the way, in this prior art, since the number and size of the small-diameter holes are appropriately set according to the water pressure, once set, the number of small-diameter holes and the like can be changed corresponding to the fluctuation of the water pressure. I can't let you. Therefore, when the water pressure flowing into the urinal from the flush valve is low, if the water flowing into the communication passage is passed through the small-diameter hole, the amount of water flowing into the tank decreases or in extreme cases. May stop water from flowing into the tank.
[0006]
The present invention has been made in view of the above points, and regardless of the fluctuation of the water pressure during urinal washing, the valve body is forcibly pushed up by the water pressure to close the valve and block the inflow of water into the tank. The purpose of this is to prevent a certain amount of water and to reliably store a predetermined amount of water in the tank.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a flash valve (1), a valve chamber (24) into which water flows from the flash valve (1) through the communication passage (6), a valve chamber. A valve body (23) arranged movably in the vertical direction on (24), a valve hole (16) arranged above the valve chamber (24), and arranged above the valve hole (16), A urinal washing device comprising a tank (10) containing a cleaning agent (18) and a float (20) connected to the valve body (23) through which water flows in or out through a hole (16). In the valve chamber (24), water flowing from the communication passage (6) is not directly applied to the valve body (23) until the valve body (23) moves from the valve opening position to the valve closing position. And a flow path changing member (25) for changing the flow path of water.
[0008]
Thereby, the flow path of water can be changed and made to flow in into a tank (10), without directing the water flow which flows in into a tank (10) from a flush valve (1) to a valve body (23). Accordingly, even when the water pressure of the water flowing in from the flash valve (1) is high, it is possible to prevent the valve body (23) from being forcibly raised by the water pressure and closed.
[0009]
In addition, since the water pressure flowing into the communication passage (6) from the flash valve (1) is not lowered as in the prior art, the water pressure flowing from the flash valve (1) is low from the beginning. However, it is possible to prevent the amount of water flowing into the tank (10) from decreasing or the water from not flowing into the tank (10).
Therefore, it is possible to reliably store a predetermined amount of water in the tank (11) regardless of fluctuations in water pressure.
[0010]
Specifically, the flow path changing member (25) has a cylindrical shape as in the invention described in claim 2, is formed in a vertical direction so as to surround the valve body (23), and has a water flow at the upper end. A notch portion (26) serving as a passage is formed, and the depth of the notch portion (26) is determined until the valve body (23) moves from the valve opening position to the valve closing position. 23) can be configured to so that is set so as not to push up directly.
In the urinal washing apparatus, the separation member (11) for separating the float (20) and the cleaning agent (18) is generally used in the tank (10) so as not to disturb the operation of the float (20). In the invention according to claim 3, the separation member (11) for separating the cleaning agent (18) and the float (20) is disposed in the tank (10), and the separation member (11) The lower end portion is in contact with the upper end portion of the flow path changing member (25).
[0011]
Thereby, the flow path changing member (25) also plays a role of determining the vertical position of the separating member (11) when the separating member (11) is fixed in the tank (10).
In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment description later mentioned.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.
The flush valve 1 is for flushing the urinal with water after use by the user and washing the urinal, and is disposed above the urinal (not shown). An automatic faucet 2 that controls the flow of water flowing from the flush valve 1 to the urinal according to the usage status of the urinal is attached to the upper part of the flush valve 1 of the present embodiment. Above the automatic faucet 2, there is disposed an electromagnetic valve 7 that is operated by a sensor (not shown) that detects the approaching and leaving of the passenger. A diaphragm valve 3 is built in the upper part of the automatic faucet 2 to block or communicate the water flow paths 2a, 2b in the automatic faucet 2 by the operation of the electromagnetic valve 7.
[0013]
The automatic faucet 2 is resinous and has a cylindrical outer wall portion 2c constituting the outer peripheral portion of the automatic faucet 2, and a cylindrical inner wall portion that is smaller in diameter than the outer wall portion 2c and is located inside the outer wall portion 2c. 2d. Between the outer wall portion 2c and the inner wall portion 2d, there is formed a first automatic faucet channel 2a in which water flowing out of the flash valve 1 flows in the direction of arrow A (upward), and in the center of the inner wall portion 2d A second automatic faucet flow channel 2b is formed in which the water flowing upward in the first automatic faucet flow channel 2a flows in the direction of arrow B (downward).
[0014]
On the right side of the outer wall 2c of the automatic faucet 2 in FIG. 1, a cylindrical communication path 6 that forms a water flow path between the automatic faucet 2 and a tank 10 described later is formed so as to protrude in a substantially horizontal direction. Has been. A cylindrical guide 5 for guiding the water flowing through the second automatic faucet channel 2 b to the communication path 6 is press-fitted at the left end in FIG. 1 in the communication path 6. There is resinous meat around the guide 5 in the first automatic faucet flow path 2a, and the water flowing through the first automatic faucet flow path 2a does not directly hit the guide 5. The guide 5 is disposed so as to communicate between the second automatic faucet flow channel 2 b and the communication path 6.
[0015]
The upper half of the guide 5 at the left end in FIG. 1 is cut, and the remaining lower half forms the introduction portion 5a. The introduction portion 5a is disposed so as to protrude from the inner wall portion 2d into the second automatic faucet flow channel 2b, and as indicated by an arrow C, the water flowing through the second automatic faucet flow channel 2b by the introduction portion 5a. Is guided into the guide 5.
A tank 10 in which a valve chamber 24 connected to the communication path 6 is integrally formed below is disposed on the right side of the communication path 6 in FIG. The tank 10 is made of a resin material. The valve chamber 24 forms a water flow path between the communication path 6 and the tank 10.
[0016]
The upper end of the tank 10 is covered with a lid (not shown). A solid cleaning agent 18 and a float 20 are accommodated in the tank 10. The cleaning agent 18 is water-soluble and dissolves from the surface little by little when immersed in water, and water containing the cleaning agent 18 is generated in the tank 10. A plurality of long convex portions 19 extending in the front and back directions in FIG. 1 are formed on the bottom surface in the tank 10, so that the cleaning agent 18 does not directly contact the bottom surface of the tank 10.
[0017]
In the tank 10, a sleeve 11 is installed in the vertical direction as a separating member for separating the cleaning agent 18 so as not to disturb the operation of the float 20. The sleeve 11 is made of resin and has a float chamber 12 in which the float 20 is built, a communication portion 13 that is located below the float chamber 12 and communicates the inside and outside of the sleeve 11, and a valve seat that is located below the communication portion 13. Part 15. The sleeve 11 is fitted from above the valve chamber 24 so that the valve seat portion 15 is positioned above the valve chamber 24.
[0018]
The float chamber 12 has a cylindrical shape, and the communication portion 13 is composed of a plurality of columns connecting the float chamber 12 and the valve seat portion 15, and is surrounded by a strainer 17 made of a wire mesh. A partition plate 14 is provided between the float chamber 12 and the communication portion 13. The partition plate 14 has a circular shape and is provided with a central hole through which the connecting rod 21 penetrates at a central position, and a plurality of communication holes for communicating the float chamber 12 and the communication portion 13 are provided at a portion close to the outer periphery. The water flows into the float chamber 12 through this communication hole.
[0019]
A conical valve body 23 is disposed in the valve chamber 24, and the valve seat 15 above the valve chamber 24 is recessed in a conical shape so that the valve body 23 can be fitted. At the center of the valve seat portion 15, a valve hole 16 is provided for allowing water to flow into or out of the tank 10.
In the present embodiment, the valve body 23 is made of rubber which is an elastic member in consideration of sealing performance with the valve seat portion 15. However, since the strict sealing property is not required in order to block the water flowing into the tank 10, the valve body 23 may be made of a metal material that is an inelastic member. The valve body 23 is not limited to a conical shape, and may be any shape that can be fitted to the valve seat portion 15. For example, the valve body 23 is formed in a spherical shape, and the valve seat portion 15 is further formed into the valve body 23. In addition, it may be configured in a spherical shape.
[0020]
The valve body 23 is connected to the float 20 in the float chamber 12 by a connecting rod 21 that passes through the valve hole 16 and the central hole of the partition plate 14. When water flows into the tank 10 and the water level in the tank 10 rises, the float 20 rises, and the valve body 23 moves upward accordingly. Then, when the valve body 23 is in close contact with the valve seat portion 15, the flow path of water flowing into the tank 10 from the communication path 6 through the valve chamber 24 is blocked.
[0021]
As shown in FIG. 2, the valve chamber 24 is provided with a flow path changing member 25 in order to prevent water flowing in the direction of arrow D from the communication path 6 from directly hitting the valve body 23. The flow path changing member 25 is formed so as to protrude upward in the valve chamber 24. The flow path changing member 25 has a cylindrical shape extending in the vertical direction, and the valve body 23 is accommodated therein. The inner diameter d of the flow path changing member is slightly larger than the diameter f of the valve body 23, and the valve body 23 moves in the vertical direction in the flow path changing member 25.
[0022]
As described above, the sleeve 11 is fitted into the valve chamber 24 from above and installed in the tank 10. At this time, the valve seat 15 at the lower end of the sleeve 11 is in contact with the upper end of the flow path changing member 25. . That is, the flow path changing member 25 also plays a role of determining the position of the sleeve 11 in the vertical direction when the sleeve 11 is fixed in the tank 10.
[0023]
A plurality of notches 26 having a depth e are provided at the upper end of the flow path changing member 25, and the notch 26 allows water to flow between the flow path changing member 25 and the valve seat 15. A path is formed. The depth e of the notch 26 is set so that water flowing in the direction of arrow E does not directly push up the valve body 23 until the valve body 23 moves upward and comes into contact with the valve seat 15.
[0024]
Further, in the flow path changing member 25, the cutout portion 26 is not disposed at the upper end on the side (left side in FIG. 1) where water flowing in the direction of arrow D directly contacts the valve chamber 24 from the communication path 6.
Next, the operation of the urinal washing apparatus according to this embodiment will be described based on the above configuration.
[0025]
When the urinal is not used, the water pressure in the first automatic faucet flow path 2a is higher than the water pressure in the second automatic faucet flow path 2b, so that the diaphragm valve 3 is in the first automatic faucet flow path 2a. The first automatic faucet flow channel 2a and the second automatic faucet flow channel 2b are blocked by being pressed against the water pressure. For this reason, water does not flow in the urinal.
When the user leaves the front of the urinal after use, the electromagnetic valve 7 is activated by a signal from a sensor (not shown), and the first automatic faucet channel 2a and the second automatic faucet are operated. The water pressure in the flow path 2b becomes equal, the diaphragm valve 3 moves upward, and the first automatic faucet flow path 2a and the second automatic faucet flow path 2b communicate with each other. As a result, the water flowing out of the flush valve 2 flows in the first automatic faucet flow channel 2a in the direction of arrow A, flows in the second automatic faucet flow channel 2b in the direction of arrow B, and further flows to the urinal. Wash the urinal temporarily.
[0026]
At this time, a part of the water flowing in the second automatic faucet channel 2 b flows in the direction of arrow C by the introduction part 5 a and is guided to the communication path 6 through the guide 5. As shown in FIG. 2, the water guided to the communication path 6 flows in the direction of arrow D and flows into the valve chamber 24, hits the flow path changing member 25, the flow path is bent, and goes around the flow path changing member 25.
Then, the water flow rises in the valve chamber 24 without directly hitting the valve body 23, enters the inside of the flow path changing member 25 from the notch portion 26, as shown by an arrow E, and further enters the tank 10 through the valve hole 16. Flow into. The water that has flowed into the tank 10 first flows into the communication portion 13 below the sleeve 11, and then flows out of the sleeve 11 through the strainer 17.
[0027]
At this time, if the water pressure flowing into the tank 10 through the valve hole 16 is too high, the water flow directly hits the float 20 above the valve hole 16 and raises it, and enters the tank 10 by a predetermined amount. Before the water accumulates, the valve body 23 may be brought into close contact with the valve seat portion 15 to close the valve.
Therefore, in the present embodiment, a partition plate 14 is provided between the float chamber 12 and the communication portion 13, and a water flow that passes through the valve hole 16 and rises in the sleeve 11 is applied to the partition plate 14, whereby the water flow is directly floated. 20 is prevented.
[0028]
When water flows into the tank 10 and the water level rises and a predetermined amount of water accumulates in the tank 10, the float 20 rises as the water level rises in the tank 10, and along with this, via the connecting rod 21. The valve body 23 moves upward and comes into close contact with the valve seat portion 15. Thereby, the valve hole 16 is closed and the inflow of water into the tank 10 is blocked.
When water flows into the tank 10, the cleaning agent 18 stored in the tank 10 is gradually dissolved, and water containing the cleaning agent is generated in the tank 10.
[0029]
While the outflow of water from the flush valve 1 to the urinal continues, the valve body 23 is pressed against the valve seat portion 15 by the water pressure, so that the water in the tank 10 does not flow out.
When the outflow of water from the flush valve 1 to the urinal is stopped, the valve body 23 moves downward to move away from the valve seat portion 15 and the valve hole 16 is opened. Water containing the cleaning agent is stored in the tank through the valve hole 16. 10 flows out into the valve chamber 24. And it flows in into the 2nd automatic faucet flow path 2b through the valve chamber 24 and the communicating path 6, and flows into the urinal further.
[0030]
Thus, after flushing the urinal primarily with water, the urinal can be washed secondarily by flowing water containing a cleaning agent through the urinal.
As described above, according to the present embodiment, the water flowing into the valve chamber 24 from the communication path 6 is bent by the flow path changing member 25 and the water flow is not directly applied to the valve body 23. Even when the water pressure flowing out of the flash valve 1 is high, the valve body 23 is forcibly pushed up to stop the inflow of water into the tank 10 before a predetermined amount of water accumulates in the tank 10. Can be prevented.
[0031]
Further, unlike the prior art, in which the water flowing into the communication path 6 from the flash valve 1 is passed through the small-diameter hole, the water pressure of the water flowing into the communication path 6 is not lowered, so the flush valve 1 is transferred to the urinal. Even when the water pressure of the outflowing water is low, it is possible to prevent the amount of inflow of water into the tank 10 from decreasing or the inflow of water into the tank 10. Therefore, a predetermined amount of water can be reliably stored in the tank 10 regardless of fluctuations in water pressure.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a urinal washing apparatus to which the present invention is applied.
FIG. 2 is an enlarged cross-sectional view of a float valve.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Flash valve, 2 ... Automatic faucet, 6 ... Communication path, 10 ... Tank, 11 ... Sleeve (separation member), 15 ... Valve seat part, 16 ... Valve hole, 18 ... Cleaning agent, 20 ... Float, 23 ... Valve body, 24 ... valve chamber, 25 ... flow path changing member, 26 ... notch.

Claims (3)

A flush valve (1) for flushing the urinal,
A valve chamber (24) into which water flows from the flush valve (1) through the communication passage (6);
A valve body (23) disposed movably in the vertical direction in the valve chamber (24), and a valve hole (16) disposed above the valve chamber (24) and closed by the valve body (23). )When,
Located above the valve hole (16), water flows in or out through the valve hole (16), and contains a cleaning agent (18) and a float (20) connected to the valve body (23). A urinal washing device comprising a tank (10),
Until the valve body (23) moves from the valve open position to the valve close position, water flowing from the communication passage (6) is directly applied to the valve body (24) to the valve chamber (24). A urinal washing device comprising a flow path changing member (25) for changing the flow path of water so as not to flow. The flow path changing member (25) has a cylindrical shape, is formed in a vertical direction so as to surround the valve body (23), and a notch (26) serving as a water flow path is formed at an upper end portion. The depth of the notch (26) is set so that the valve body (23) is not directly pushed up until the valve body (23) moves from the valve opening position to the valve closing position . The urinal washing device according to claim 1. A separation member (11) for separating the cleaning agent (18) and the float (20) is disposed in the tank (10), and a lower end portion of the separation member (11) is formed by the flow path changing member. The urinal washing device according to claim 1 or 2, wherein the urinal washing device is in contact with an upper end of (2 5 ).

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