JP5126740B2 - Washing water supply device for urinals - Google Patents

Description

  The present invention relates to a urinal washing water supply apparatus suitable for a urinal.

  Conventionally, water is generally used after using a urinal. Normally, the amount of water used at one time is 4 liters, but in recent years, water-saving types have been put on the market and the amount used is 1.2 to 2 liters per time.

It is desirable that the amount of water used is small considering water conservation, but if the amount of water used is reduced, for example, it collects in a trap (puddle that prevents backflow of odor from the water pipe) at the urinal drain. Bacteria are generated due to a decrease in the replacement rate of urine and water. In addition, it could not be surely flowed out, and it was easy to become clogged piping and odor generating elements due to generation of dirt and urine stones, and there was a limit to water saving. For this purpose, means using a chemical solution are known. (See Patent Document 1)
The outline of the means for using the chemical solution is as follows: a chemical solution supply unit comprising a chemical solution tank and a supply tank; a control device for adjusting the amount of chemical solution from the chemical solution supply unit and the amount of water from the water supply pipe; And a chemical solution injection device for a flush toilet.
JP 2003-155768 A

  In the flush toilet, the chemical supply unit of the chemical solution injection device requires a pump outside the chemical solution tank and the supply tank, and requires an independent control device that controls opening and closing of the on-off valve. In addition, it is not desirable in terms of cost.

  Accordingly, an object of the present invention is to provide a toilet flushing water supply device that has a simple structure and that can stably and reliably deliver a predetermined volume of flushing water over a long period of time. .

In order to achieve the above-mentioned object, in the first aspect of the present invention, a flush water extrusion cylinder comprising a feed valve connectable to a feed water pipe and a supply valve connectable to a urinal washing nozzle, A first piston that is disposed in the cleaning water push-out cylinder and can be moved forward and backward, a chemical liquid push-out cylinder provided at a back side portion of the piston surface of the first piston, and a forward movement that is disposed in the chemical liquid push-out cylinder. A second retractable piston, and a chemical tank provided separately for feeding the chemical into the chemical extrusion cylinder,
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. While the second piston is configured to be reciprocally movable to a position, the second piston is retracted by a spring pressure by a second spring, and a standby position in which the chemical liquid in the chemical liquid tank is fed into the chemical push-out cylinder by the suction pressure at the time of retraction. The first piston is configured to reciprocate to an operating position where the first piston moves forward in contact with the stopper member and pushes the chemical into the cleaning water push-out cylinder.

In the second case, a flush water extrusion cylinder having a feed valve connected to the feed water pipe and a pipe leading to the urinal washing nozzle and a feed valve connectable, and disposed forward in the flush water extrusion cylinder, A first piston that can be retracted, and an electric drive pump for extruding a chemical solution that communicates with a chemical solution tank that is provided on the back side of the piston surface of the first piston and is provided separately.
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. On the other hand, the electric drive pump can be turned on and off at the time of the on operation to feed the chemical liquid in the chemical liquid tank into the chemical pushing cylinder and off to stop the feeding of the chemical liquid. When the water supply valve is opened or closed, it is turned on for a certain period of time.

In the third, a flush water extrusion cylinder having a feed valve connectable to the feed water pipe and a pipe leading to the urinal washing nozzle and a feed valve connectable, and disposed forward in the flush water extrusion cylinder, A first piston that can be retracted; a chemical push-out cylinder provided in a rear surface side portion of the piston face of the first piston; a second piston that is disposed in the chemical push-out cylinder and is capable of moving forward and backward; A chemical tank provided in a separate body for feeding the chemical into the chemical extrusion cylinder,
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. On the other hand, the second piston moves forward in contact with the stopper member when the first piston moves backward, and the chemical liquid in the chemical liquid tank is moved by the suction pressure at the time of forward movement. A standby position to be fed into the push-out cylinder, and an operating position to push the chemical liquid in the push-out cylinder to the pipe following the urinal washing nozzle when the first piston moves backward by the spring pressure of the second spring as the first piston moves forward. It is characterized by being reciprocally movable.

  According to the first aspect of the present invention, when the water supply valve is opened, tap water is fed into the washing water pushing cylinder and the first piston is moved backward by the water supply pressure. At the time of the backward movement, the piston contact surface of the second piston comes into contact with the stopper member, and the chemical liquid can be pushed out into the cleaning water push-out cylinder by the second piston that moves forward in the chemical push-out cylinder by the contact. At this time, since the chemical tank is provided separately, the capacity can be increased and the medicinal solution replenishment cycle can be extended.

  Also, the cleaning water in the cleaning water push-out cylinder fed with the chemical solution and mixed with the tap water is connected to the urinal cleaning nozzle by the first piston that moves forward in the cleaning water push-out cylinder by releasing the supply water pressure by opening the supply valve. Can be sent directly to.

  In addition, the second piston is pushed out when the first piston moves backward, while the first piston is pushed out by the spring pressure of the first spring. Thus, it is compact and the structure can be simplified.

  Further, since the cleaning water in the cleaning water push-out cylinder has a relationship between the cylinder diameter and the piston, it is possible to design a cylinder volume with an accurate push-out amount. In addition, since it is pushed out by the spring pressure of the first spring, it is possible to always stably feed out an accurate amount of washing water without being affected by fluctuations in the water pressure.

  According to the second aspect of the present invention, it is needless to say that the chemical liquid can be accurately fed into the washing water pushing cylinder by the electric drive pump, and the electric drive pump is accommodated in the internal space of the first piston. The entire apparatus can be made compact by the structure.

  According to the third aspect of the present invention, in addition to the first function and effect, a small amount of the chemical solution can be reliably and efficiently sent out to the pipe continuing to the urinal washing nozzle.

  In carrying out the present invention, first, the first piston can be positioned at different standby positions along the piston axial direction of the piston by the standby position adjusting means, so that the first piston can be moved forward and the cleaning water pushing cylinder The cylinder volume can be reduced. Further, it is desirable to increase the cylinder volume by retreating so that the cylinder volume can be controlled.

  Second, the first spring is supported by a spring pressure adjusting means capable of moving back and forth in a forward direction in which the spring pressure is increased and in a backward direction in which the spring pressure is weakened, thereby adjusting the pushing force for pushing out the first piston. It is desirable to be able to obtain an extrusion force with an optimum spring pressure.

  Thirdly, by controlling the stopper member so as to move forward and backward in a forward position toward the piston contact surface of the second piston and a reverse position away from the piston contact surface, the cylinder volume in the chemical liquid extrusion cylinder can be controlled. It is desirable to be able to do so.

  Fourthly, the first piston is provided with a power driven manual that provides a reciprocating motion reciprocating between an operating position and a standby position to provide rotational power to the power generation shaft of the generator, thereby saving water. It is desirable that a reliable rotational power can be applied to the generator shaft of the generator.

  Hereinafter, the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

  FIG. 1 shows a schematic explanatory diagram in which the first piston of the flushing water supply device for urinals is moved back to the standby position.

  The urinal flushing water supply device 1 includes a flushing water extrusion cylinder 7 having a water supply valve 3 and a supply valve 5, a first piston 9 disposed in the flushing water extrusion cylinder 7 and capable of moving forward and backward, A chemical liquid extrusion cylinder 11 provided in the center part on the back surface side of the piston surface 9a of the first piston 9, a second piston 13 disposed in the chemical liquid extrusion cylinder 11 and capable of moving forward and backward, and the chemical liquid extrusion cylinder 11 has a chemical solution tank 15 for feeding the chemical solution into 11. The entire apparatus excluding the chemical tank 15 is accommodated in the unit case 16 as shown in FIG.

  The washing water push-out cylinder 7 includes the water supply valve 3 and the supply valve 5 described above in the cylinder head 7a. The supply valve 3 is normally closed, and has a connecting portion 19 that is detachably connected to a check valve 17 for preventing a backflow provided in a water supply pipe 16 such as a water supply. The supply valve 5 is normally closed, and has a connecting portion 25 that is detachably connected to a pipe 23 that continues to the urinal washing nozzle 21 (see FIG. 6). The first piston 9 that moves forward and backward in the cleaning water push-out cylinder 7 moves forward by the spring pressure of the first spring 27 (arrow 1 in FIG. 1), and the cleaning water in the cleaning water push-out cylinder 7 is supplied via the supply valve 5. Thus, it can freely reciprocate between an operating position (solid line in FIG. 2) to be pushed out to the pipe 23 and a standby position (solid line in FIG. 1) retreating by the feed water pressure fed through the feed valve 3 (arrow in FIG. 1).

  The operating position of the first piston 9 (solid line in FIG. 2) indicates the state where the pushing out of pushing out the washing water in the washing water pushing cylinder 7 and the control circuit (not shown) by turning on the first detection switch S-1. Thus, the detection switch operating position of the action of opening the water supply valve 3 and the action of closing the supply valve 5 is provided.

  The standby position (the solid line in FIG. 1) of the first piston 9 is positioned when the first piston 9 moves backward and comes into contact with the cylinder cover 29, and the second detection switch S-2 is turned on. It is the detection switch operating position that closes the water supply valve 3.

  As shown in FIG. 1, the first detection switch S- 1 includes a magnet 31 provided in a chemical liquid cylinder opening / closing valve 30 described later and a magnetic force detection unit 33 provided in a cylinder head 7 a of the cleaning water push-out cylinder 7. ing. Therefore, when the first piston 9 moves forward and reaches the operating position (solid line in FIG. 2), the magnetic force detection unit 33 detects the magnetic force of the magnet 31 to turn on and open the water supply valve 3 and close the supply valve 5. Each operation is controlled.

  The second detection switch S-2 is a photoelectric switch including a light emitting element 35 and a light receiving element 37 provided on the cylinder cover 29 as shown in FIG. Therefore, when the first piston 9 moves backward and reaches the standby position (solid line in FIG. 1), the skirt portion enters between the light emitting element 35 and the light receiving element 37 and shuts off the light so that the water supply valve 3 is closed. It is designed to control the operation. As shown in FIG. 6, the supply valve 5 is opened by a detection signal from a sensor window 38 of a human sensor provided on the front surface of the unit case 16, and is controlled to be closed by a signal from the first detection sensor S-1. Is done.

  The cylinder cover 29 can be adjusted by the standby position adjusting means 38 from a standby position (solid line in FIG. 1) where the cylinder volume is maximum to a standby position (solid line in FIG. 4) where the cylinder volume is minimum.

  More specifically, the cylinder cover 29 is fitted and inserted into a threaded portion 41a of a mounting screw 41 that passes through the mounting sleeve 39 disposed along the outer periphery of the washing water extrusion cylinder 7, and the outer nut 43 and the inner side Are fixedly supported in a state of being sandwiched between the plurality of adjustment rings 45.

  Therefore, the cylinder cover 29 can be removed from the mounting screw 41 by loosening the nut 43. For example, the standby position of the first piston 9 can be set, for example, by removing one or two adjustment rings 45 simultaneously. As shown in FIG. 4, it is possible to position at the advanced position.

  Thereby, the cylinder volume (capacity | capacitance which sends out wash water) of the washing water extrusion cylinder 7 can be adjusted as needed by moving the stand-by position of the 1st piston 9 back and forth and positioning.

  The first spring 27 for biasing the first piston 9 is formed in a conical shape. The bottom side of the first spring 27 having a larger diameter is fixedly supported by the fixing seat 47 of the first piston 9, and the top side of the first spring 27 having a smaller diameter is fixedly supported by a pressure adjusting spring receiver 49, respectively. By opening 5, the water absorption pressure in the cleaning water push-out cylinder 7 is released, so that the first piston 9 is pressed by the spring pressure.

  The pressure adjustment spring receiver 49 is screwed into the threaded portion 51a of the hollow cylindrical body 51 that is fixedly supported by the cylinder cover 29. For example, the pressure adjustment spring receiver 49 is rotated to the right or left as shown in FIG. As shown by the arrow C, the spring pressure of the first spring 27 can be adjusted by moving forward (spring pressure becomes stronger) or backward (spring pressure becomes weaker).

  The chemical liquid extrusion cylinder 11 is provided at the central portion on the back side of the piston surface 9a of the first piston 9, and the second piston 13 capable of moving forward and backward is provided therein.

  The chemical liquid extrusion cylinder 11 is provided with the chemical liquid cylinder opening / closing valve 30 described above on the piston surface 9a of the first piston 9 serving as a cylinder head. The chemical cylinder opening / closing valve 30 is normally closed by an urging spring 53, and the open state is secured by the piston pressure of the second piston 13.

  The second piston 13 is retracted by the spring pressure of the second spring 55, and a standby position in which the chemical liquid in the chemical liquid tank 15 is fed into the chemical push-out cylinder through the tube tube 57 by the suction pressure at the time of retraction (solid line in FIG. 2). When the first piston 9 moves backward, the stopper member 59 comes into contact with the stopper member 59 and moves forward (arrow A in FIG. 1) to reciprocate to an operating position (solid line in FIG. 1) for pushing the chemical solution into the cleaning water push-out cylinder 7. ing. Although not shown, a connection portion between the tube tube 57 extended from the chemical solution tank 15 and the chemical solution extrusion cylinder 11 is provided with a check valve so that the chemical solution in the chemical solution extrusion cylinder 11 does not return to the tube tube 57. Yes.

  In addition, as the chemical solution in the chemical solution tank 15, a combination chemical solution in which an fragrance is combined in addition to the deodorizing chemical may be used.

  Further, it is desirable that the tube tube 57 has a shape corresponding to expansion / contraction as a flexible coil-like shape 57a as shown in the figure, since it expands and contracts between the cylinder cover 29 and the chemical solution extrusion cylinder 11.

  The second spring 55 of the chemical solution extrusion cylinder 11 is interposed between the end surface of the chemical solution extrusion cylinder 11 and the piston contact surface 13a of the second piston 13 formed in a flange shape, and always waits for the second piston 13. It is biased to the position (solid line in FIG. 2). At this time, the cylinder volume in the chemical solution pushing cylinder 11 is determined by the cylinder diameter based on the design value, and the suction pressure when the second piston 13 moves backward (arrow B in FIG. 1) is passed through the tube tube 57 described above. The chemical solution in the chemical solution tank 15 is sucked into the chemical solution pushing cylinder 11. The chemical liquid in the chemical push-out cylinder 11 moves forward by the piston contact surface 13a of the second piston 13 coming into contact with the stopper member 59 when the first piston 9 moves backward (arrow 1 in FIG. 1) (arrow 1 in FIG. 1). Then, the chemical solution in the cylinder acts to push out the cleaning water into the cylinder 7.

  The stopper member 59 is formed in a bolt shape, and is screwed into a nut portion 63 of the mounting member 61 provided on the cylinder cover 29 so as to be freely advanced and retracted (arrows a and b in FIG. 1). The stopper position P can be positioned by rotating the operation part 59a, which is a part, clockwise or counterclockwise.

  According to the cleaning water supply apparatus 1 configured as described above, the chemical liquid extrusion cylinder 11 has a layout structure that can be accommodated in the first piston 9 including the second piston 13, and therefore the entire apparatus excluding the chemical liquid tank 15 is a unit. Since it is housed and arranged in the case 16, it can be made compact and can be easily attached to the inside of the mounting wall 66 of the existing urinal 65 as shown in FIG. In this case, as shown in FIG. 6, it may be an embedded type that attaches to the mounting wall surface 66 projecting to the front surface, or may be an exposed type that is not shown, but is exposed entirely.

  Further, when assembling, the operation portion 59a is operated to move the stopper member 59 forward or backward so that the amount of the chemical in the chemical push-out cylinder 11 can be adjusted accurately. Further, by attaching or removing the adjustment ring 45, the standby position (solid line in FIG. 1) of the first piston 9 can be moved forward or backward, and the cylinder volume of the cleaning water pushing cylinder 7, that is, the cleaning water can be reduced. The amount of washing water pushed out to the pipe 23 can be adjusted.

  On the other hand, when the human sensor detects a person through the sensor window 38, the supply valve 5 is opened. As a result, the internal pressure is released, and the washing water mixed with the chemical solution by the spring pressure of the first spring 27 is supplied to the urinal washing nozzle 21 via the pipe 23 to perform washing. After the cleaning is completed, the first detection sensor S-1 is activated to open the water supply valve 3. Accordingly, the first piston 9 is moved backward by the feed water pressure sent. At this time, the second piston 13 abuts against the stopper member 59 and abuts against the cylinder cover 29 and is positioned at the standby position (solid line in FIG. 1). At the same time, the second piston 13 is fed into the cleaning water pushing cylinder 7 from the water supply pipe 16. The tap water is repeatedly put into a standby state in which it is mixed with the chemical solution fed from the washing water push-out cylinder 7 by the second piston 13 that comes into contact with the stopper member 59. In these series of operations, the liquid and the washing water are controlled and managed by the chemical liquid pushing cylinder 11 and the washing water pushing cylinder 7, so that a stable and accurate amount can be obtained over a long period of time. Further, since the chemical liquid tank 15 is a separate body, it can be made to have a large capacity, and the merit of extending the chemical liquid replenishment cycle can be obtained.

  FIG. 7 shows a second embodiment in which an electromagnetic pump 67 serving as an electric drive pump is used as means for feeding the chemical into the cleaning water push-out cylinder 7.

  That is, an electric drive pump 67 is provided in the center on the back side of the piston surface 9 a of the first piston 9, and is built into the first piston 9.

  The electromagnetic pump 67 operates a solenoid valve (not shown) in the pump main body 71 from closed to open when the current flows through the electromagnetic coil 69, and pushes flush water from the discharge port 73 during the ON operation time. It acts to discharge the chemical into the cylinder 7. Although the solenoid valve is not shown, when the current to the electromagnetic coil 69 is cut off, the solenoid valve is biased to the closed position by a coil spring (not shown). At this time, a suction pressure is generated when the electromagnetic valve is moved to the closed position. The suction pressure causes the chemical liquid to be fed from the chemical liquid tank 15 into the pump main body 17, and a standby state for discharging the chemical liquid is secured.

  The electromagnetic pump 67 is in an on-operation state for a certain time after the water supply valve 3 is opened, and the on-operation time is a discharge amount of the chemical solution.

  In this case, it is possible to use a means that is in an on state for a certain period of time after the water supply valve 3 is closed.

  The on-operation time of the electromagnetic pump 67 is such that a detection signal detected by the human sensor and a detection signal detected by the first detection sensor S-1 are input to the control circuit unit 75 via the sensor window 38. It is possible to control the amount of the chemical set based on the program incorporated in the control circuit unit 75, that is, the operation state that is on for a certain period of time.

  The other components are the same as those shown in FIG.

  Therefore, according to this embodiment, the chemical liquid can be accurately discharged into the cleaning water push-out cylinder 9 by turning on the electromagnetic pump 67 for a certain period of time.

  On the other hand, since the electromagnetic pump 67 is housed and arranged inside the first piston 9, the entire apparatus can be made compact.

  In this embodiment, an electromagnetic pump has been described as an example of an electric drive pump. However, a piezoelectric element pump or a motor pump type may be used.

  8, 9, and 10 show the third embodiment, in which the chemical solution is not sent into the washing water push-out cylinder 7 but directly into the pipe 23 leading to the urinal washing nozzle 21. is there.

  That is, the second piston 13 of the chemical liquid pushing cylinder 11 abuts on the stopper member 59 when the first piston 9 of the washing water pushing cylinder 7 moves backward, and moves forward, while the advanced second piston 13 moves to the second spring. Reciprocating by reciprocating by 55 is the same as in the first embodiment, but in this embodiment, the state is a standby position (FIG. 8) to which the chemical solution is sent during forward movement. Moreover, it is in the state of the operation position (FIG. 10) which sends out a chemical | medical solution at the time of backward movement.

  Specifically, as shown in FIG. 9, on the inside (left side of the drawing) of the piston portion 13-1 of the second piston 13, a chemical solution inlet 81 having ball-shaped on-off valves 77 and 79 in the chemical solution extrusion cylinder 11 and a chemical solution. A delivery port 83 is provided, and the chemical solution inlet 81 is connected to and communicated with the chemical solution tank 15 via a pipe 57 provided with a flexible pipe portion 57a that can be expanded and contracted. The chemical solution delivery port 83 is connected to and communicated with the pipe 23 continuing to the urinal washing water nozzle 21 via a pipe 85 provided with a flexible pipe portion 85a that can be expanded and contracted.

  The on-off valve 77 of the chemical liquid inlet 81 and the on-off valve 79 of the chemical liquid outlet 83 are respectively provided with a biasing spring 87 that biases away from the cylinder axis X and a biasing spring 89 that biases toward the cylinder axis X. It is working.

  The on-off valve 77 of the chemical liquid inlet 81 is in contact with the valve seat 81a by a biasing spring 87 that biases in a direction away from the cylinder axis X to ensure a closed state. In the valve seat 81, when the second piston 13 abuts against the stopper member 59 and moves forward (arrow a in FIG. 9), the opening / closing valve 77 is opposed to the urging spring 87 by the suction pressure acting in the chemical push-out cylinder 11. It is opened by leaving, and the chemical liquid is fed into the chemical extrusion cylinder 11. At this time, the suction pressure acts to press the opening / closing valve 79 of the other chemical solution delivery port 81 against the valve seat 83a, and the closed state is secured in combination with the spring pressure by the biasing spring 89. .

  The on-off valve 79 of the chemical solution delivery port 83 is in contact with the valve seat 83a by the urging spring 89 that urges toward the cylinder axis X, thereby ensuring a closed state. The valve seat 83a works in the chemical push-out cylinder 11 when the first piston 7 moves backward (arrow C), which moves backward by the spring pressure of the second spring 55 as the first spring 27 moves forward (arrow b in FIG. 10). The on / off valve 79 is separated from the valve seat 83 a against the biasing spring 89 by the pushing force (piston pressure), and the chemical solution is directly sent to the pipe 23 continuing to the urinal washing nozzle 21. At this time, the pushing force (piston pressure) acts to press the opening / closing valve 77 of the other chemical liquid inlet 81 against the valve seat 81a, and the closed state is secured together with the spring pressure by the biasing spring 87. It has become.

  Since the other components are the same as those in the first embodiment, the same reference numerals are given and detailed description thereof is omitted.

  Therefore, according to the third embodiment, when the second piston 13 is in the advanced standby position (FIG. 8), the chemical liquid is fed into the chemical extrusion cylinder 11 by the suction pressure.

  Further, when the second piston 13 is in the retracted operating position (FIG. 10), the chemical liquid in the chemical liquid push-out cylinder 11 can be reliably and accurately sent to the pipe 23 continuing to the urinal washing nozzle 21 by the pushing force.

  11 and 12 show a fourth embodiment, in which the reciprocating motion of the first piston 9 can be used as a power source for the generator 90. FIG.

  In other words, the first piston 9 is provided with a power drive means 93 that applies reciprocating motion that reciprocates between the operating position and the standby position to the power generation shaft 91 of the generator 90.

  In the power driving means 93, an operating rod 95 is extended along the central axis Y of the first piston 9, and a rack 96 is provided on the extended end side of the operating rod 95. The rack 96 is engaged with a pinion 97, and the final transmission gear 98 is engaged with a shaft gear 99 provided on the power generation shaft 91 of the generator 90.

  A one-way clutch 101 is provided on the gear shaft 98a of the transmission gear 98, and the one-way clutch 101 has clutch teeth and a clutch that are in an ON state in which power is transmitted when the operating rod 96 moves outward as shown in FIG. It has become a nail relationship. Therefore, as shown in FIG. 11, when the operating rod 96 moves inward, the power is cut off, and the power generation shaft 91 is always supplied with rotational power in one direction.

  Since the other components are the same as those in the third embodiment, the same reference numerals are given and detailed explanations are omitted.

  Therefore, according to the fourth embodiment, rotation power can be applied to the power generation shaft 91 of the generator 90 every time the first piston 9 reciprocates. Since power generation at this time is not power generation using a water flow, a large amount of water is not used, so that reliable power generation can be obtained while saving water. In addition, unlike the means using the water flow, the means uses the movement of the first piston 9, so that it is possible to obtain a power generation power with a strong torque.

BRIEF DESCRIPTION OF THE DRAWINGS Outline explanatory drawing which shows 1st Embodiment which made the 1st piston of the flushing water supply apparatus for urinals concerning this invention retreat and was made into the standby position state. The schematic explanatory drawing which advanced the 1st piston of the flush water supply apparatus for urinals, and was made into the operation position state. The schematic explanatory drawing which showed the attachment state of the 1st, 2nd detection sensor which carries out opening control of a water supply valve and a supply valve. FIG. 2 is a schematic explanatory view similar to FIG. 1 illustrating a state in which the standby position of the first piston of the flush toilet water supply device is adjusted forward. FIG. 5 is a schematic explanatory view similar to FIG. 2 in which the first piston at the standby position in FIG. The outline explanatory drawing which shows the state which attached the flush water supply apparatus for urinals in the wall surface of the urinal. The schematic explanatory drawing which shows 2nd Embodiment similar to FIG. 1 which used the electromagnetic pump for the means to send a chemical | medical solution into a washing water extrusion cylinder. The same explanatory drawing as FIG. 1 which showed 3rd Embodiment. The schematic explanatory drawing which showed the relationship between the 2nd piston which showed 3rd Embodiment, the chemical | medical solution extrusion cylinder, and the on-off valve. The same explanatory drawing as FIG. 2 which showed 3rd Embodiment. Outline | summary explanatory drawing of 4th Embodiment which showed the state at the time of the reciprocation of a 1st piston. Outline | summary explanatory drawing of 4th Embodiment which showed the state at the time of the reciprocation of a 1st piston.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Water supply valve 5 Supply valve 7 Washing water extrusion cylinder 9 1st piston 9a Piston surface 11 Chemical liquid extrusion cylinder 13 2nd piston 15 Chemical liquid tank 16 Water supply pipe 19, 25 Connection part 21 Urinal washing nozzle 23 Piping 27 1st spring 38 Standby position adjusting means 49 Pressure adjusting spring receiver (spring pressure adjusting means)
55 Second spring 67 Electromagnetic pump 69 Electromagnetic coil 71 Pump body 73 Discharge port 75 Control circuit unit 77, 79 On-off valve 81 Chemical solution intake port 81a Valve seat 83 Chemical solution delivery port 83a Valve seat 87, 89 Biasing spring 90 Generator 91 Power generation Shaft 93 Power drive means

Claims (7)

A flushing water push-out cylinder having a feed valve connectable to the feed water pipe and a pipe connecting to the urinal washing nozzle and a feed valve connectable thereto, and a first piston which is disposed in the flushing water push-out cylinder and can be moved forward and backward And a chemical liquid extrusion cylinder provided in the back side portion of the piston surface of the first piston, a second piston disposed in the chemical liquid extrusion cylinder and capable of moving forward and backward, and a chemical liquid into the chemical liquid extrusion cylinder And a chemical tank provided in a separate body for sending in,
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. While the second piston is configured to be reciprocally movable to a position, the second piston is retracted by a spring pressure by a second spring, and a standby position in which the chemical liquid in the chemical liquid tank is fed into the chemical push-out cylinder by the suction pressure at the time of retraction. A flush water supply device for a urinal, wherein the flush water is configured to reciprocate to an operating position where the first piston moves forward by abutting against a stopper member when the first piston moves backward, and pushes the chemical into the washing water pushing cylinder. A flushing water push-out cylinder having a feed valve connectable to the feed water pipe and a pipe connecting to the urinal washing nozzle and a feed valve connectable thereto, and a first piston which is disposed in the flushing water push-out cylinder and can be moved forward and backward And an electric drive pump for extruding a chemical solution that communicates with a chemical solution tank that is provided on the back surface side portion of the piston surface of the first piston and is provided separately.
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. On the other hand, the electric drive pump can be turned on and off at the time of the on operation to feed the chemical liquid in the chemical liquid tank into the chemical pushing cylinder and off to stop the feeding of the chemical liquid. The flush water supply device for urinals is turned on for a certain period of time when the water supply valve is opened or closed. A flushing water push-out cylinder having a feed valve connectable to the feed water pipe and a pipe connecting to the urinal washing nozzle and a feed valve connectable thereto, and a first piston which is disposed in the flushing water push-out cylinder and can be moved forward and backward And a chemical liquid extrusion cylinder provided in the back side portion of the piston surface of the first piston, a second piston disposed in the chemical liquid extrusion cylinder and capable of moving forward and backward, and a chemical liquid into the chemical liquid extrusion cylinder And a chemical tank provided in a separate body for sending in,
The first piston is moved forward by the spring pressure of the first spring, and the standby position for moving backward by the feed water pressure fed through the feed valve and the operation position for pushing the wash water in the wash water pushing cylinder to the pipe through the supply valve. On the other hand, the second piston moves forward in contact with the stopper member when the first piston moves backward, and the chemical liquid in the chemical liquid tank is moved by the suction pressure at the time of forward movement. A standby position to be fed into the push-out cylinder, and an operating position to push the chemical liquid in the push-out cylinder to the pipe following the urinal washing nozzle when the first piston moves backward by the spring pressure of the second spring as the first piston moves forward. A flush water supply device for urinals, which is configured to freely reciprocate.   4. The urine according to claim 1, wherein the first piston can be positioned at different standby positions along the piston axial direction of the piston by the standby position adjusting means. Washing water supply device for equipment.   4. The first spring according to claim 1, wherein the first spring is supported by a spring pressure adjusting means capable of moving forward and backward in a forward direction in which the spring pressure is increased and in a backward direction in which the spring pressure is decreased. The flush water supply device for urinals as described.   The said stopper member is supported so that it can move forward and backward freely in the advance position which goes to the piston contact surface of a 2nd piston, and the reverse position which leaves | separates from a piston contact surface. Cleaning water supply device for urinals.   The first piston includes power driving means for applying reciprocating motion reciprocating between an operating position and a standby position to apply rotational power to a power generation shaft of a generator. The flush water supply device for urinals according to any one of the above.

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