JP6884327B2 - Toilet bowl cleaning device and toilet bowl device equipped with it - Google Patents

Description

The present invention relates to a washing water supply device that supplies washing water to a toilet bowl, and a toilet bowl device including the washing water supply device.

Conventionally, as a washing water supply device, a control valve opens and closes a pilot flow path that communicates between the primary side flow path and the secondary side flow path, thereby between the primary side flow path and the secondary side flow path. Those equipped with a pilot type diaphragm valve that opens and closes the communication port are known. Usually, the valve body of the diaphragm valve has a thin-walled folded-back portion called a convolution portion (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-315404

In the conventional washing water supply device described above, for example, when a high flow rate of washing water is to be supplied, the valve body tends to tilt with respect to the central axis in the flow direction of the communication port when the valve body is opened and closed. In particular, for example, in the case where the control valve is a type that does not open and close the flow path formed in the valve body, and is a so-called main valve separation type diaphragm valve, the valve body is made of washing water flowing through the flow path formed in the valve body. Is less likely to be guided along the central axis of the communication port, and the valve body is more likely to tilt with respect to the central axis of the communication port when the valve body is opened and closed. If the valve body is tilted with respect to the central axis of the communication port, the tilting may cause the convolution section to bend repeatedly, leading to damage. Further, it is conceivable to increase the size of the valve body according to the flow rate of the washing water so that the convolution part can withstand bending. However, as the valve body becomes larger, the washing water supply device becomes larger. There is a concern that it will end up.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a washing water supply device capable of making the valve body less likely to tilt.

The present invention is a wash water supply device that supplies wash water to a toilet bowl, and has a water inlet section that forms a primary side flow path, a water outlet section that intersects the water inlet section to form a secondary side flow path, and a water inlet section. A diaphragm is provided with a communication part that protrudes into the water inlet part from the inner wall surface connected to the water outlet part and communicates the inside of the water inlet part and the inside of the water outlet part, and a pilot type diaphragm valve that opens and closes the communication port that is the entrance of the communication part. The valve has a valve body, a pressure chamber portion that forms a pressure chamber on the opposite side of the communication port across the valve body, a communication flow path formed in the valve body that communicates the water inlet portion and the pressure chamber portion, and a pressure chamber. A connection port that has a pilot flow path that communicates the part and the water outlet part and a control valve that opens and closes the pilot flow path, and the water inlet part is provided with a diaphragm valve at a position facing the inner wall surface where the communication part is formed. There is an opening, the communicating portion is protruded to the outside from the inner end of the connection port, communicating portion is a cleaning water supply device is configured to decreases in diameter toward the communication port.

In the present invention configured in this way, the water inlet portion is opened with a connection port in which a diaphragm valve is provided at a position facing the inner wall surface on which the communication portion is formed, and the communication portion extends from the inner end to the outside of the connection port. Since it protrudes, the water pressure due to the washing water flowing around the communication part and toward the valve body tends to be uniform with respect to the valve body, and the pressure applied to the valve body becomes non-uniform, as compared with the case where it does not protrude to the outside. Can be suppressed. Therefore, it is possible to prevent the valve body from tilting and to suppress the occurrence of damage without increasing the size of the valve body.

In the present invention, preferably, the height position of the inner wall surface of the water inlet portion forming the communication portion, which surrounds the communication portion, with respect to the communication port is constant.

In the present invention configured as described above, since the height position of the inner wall surface of the water inlet portion that surrounds the communication portion and forms the communication portion with respect to the communication port is constant, the circumference of the communication portion is smaller than that in the case where it is not constant. The water pressure due to the washing water flowing toward the valve body tends to be more uniform with respect to the valve body, and it is possible to further suppress the pressure applied to the valve body from becoming non-uniform. Therefore, it is possible to prevent the valve body from tilting and to suppress the occurrence of damage without increasing the size of the valve body.

The present invention is also a toilet bowl device including a wash water supply device.

In the present invention configured in this way, since the communication portion protrudes to the outside from the inner wall surface of the water inlet portion, the water pressure due to the washing water flowing around the communication portion toward the valve body is uniform with respect to the valve body. It is easy to do so, and it is possible to prevent the pressure applied to the valve body from becoming uneven. Therefore, it is possible to prevent the valve body from tilting and to suppress the occurrence of damage without increasing the size of the valve body. Therefore, it is possible to suppress the increase in size of the washing water supply device, and it is possible to secure the degree of freedom in the layout of the washing water supply device in the toilet bowl device.

According to the washing water supply device of the present invention, it is possible to make the valve body less likely to tilt.

The block diagram which shows the toilet bowl device which concerns on one Embodiment of this invention. FIG. 3 is a partial cross-sectional view showing a water supply valve in a valve unit according to an embodiment of the present invention.

Hereinafter, the toilet bowl device according to the embodiment of the present invention will be described with reference to the drawings.
First, the configuration of the toilet bowl device according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a configuration diagram showing a toilet bowl device according to an embodiment of the present invention.

As shown in FIG. 1, the toilet bowl device 100 according to the present embodiment is, for example, a pottery toilet bowl 200 placed on the floor of a toilet room and a toilet bowl 200 arranged behind the toilet bowl 200, and is provided with washing water for the toilet bowl 200. It is provided with a washing water supply device 1 for supplying the water.

The toilet bowl 200 has a bowl portion 210 that receives filth and a drain trap pipeline 220 that extends rearward from the bottom portion of the bowl portion 210. The bowl portion 210 is formed with a rim spout 212 for rim spouting and a z spout 214 for zet spouting. The rim spout 212 is formed behind the upper part of the bowl portion 210, and discharges wash water along the upper edge of the bowl portion 210. The Z-spout port 214 is formed at the bottom of the bowl portion 210, and discharges wash water toward the drain trap pipe line 220. The drain trap pipeline 220 forms a water seal and communicates with a sewage pipe (not shown).

The wash water supply device 1 is provided in a valve unit 600 controlled by a control unit (not shown), a tank 800 provided downstream of the valve unit 600 to store wash water, and a tank 800 provided downstream in the tank 800 to pressurize the wash water. It is equipped with a pressurizing pump 900.

A water supply channel 320, which is a primary flow path for supplying washing water from a water supply source (not shown), is connected to the upstream side of the valve unit 600. Further, on the downstream side of the valve unit 600, a rim side water supply channel 340 for supplying wash water to the rim spout 212 and a tank side water supply channel 360 for supplying wash water to the tank 800 are connected.

The valve unit 600 includes a constant flow valve 620, a water supply valve 640 which is a pilot type diaphragm valve provided downstream of the constant flow valve 620, a vacuum breaker 680 provided downstream of the water supply valve 640, and a vacuum breaker 680 downstream. It is provided with a switching valve 660 provided. As described above, in the washing water supply device 1 according to the present embodiment, the vacuum breaker 680 is provided on the upstream side of the switching valve 660.

The constant flow rate valve 620 keeps the flow rate of the washing water flowing from the water supply channel 320 into the constant flow rate valve 620 toward the downstream side to be constant. The water supply valve 640 switches between spouting and stopping the washing water at the rim spout 212 and the Z spout 214 by opening and closing the water supply valve 640.

The vacuum breaker 680 prevents backflow of wash water. The switching valve 660 supplies wash water to the rim side water supply channel 340 or the tank side water supply channel 360. The wash water overflowing from the vacuum breaker 680 is collected by the water receiving unit 684 and then discharged to the tank 800 by the drainage channel 390 connected to the bottom surface of the water receiving unit 684.

A pump-side water supply channel 370 is connected to the lower part of the tank 800, and a pressurizing pump 900 is connected to the downstream end of the pump-side water supply channel 370. The pressurizing pump 900 is connected to the Zet spout 214 by the Zet side water supply channel 380, pressurizes the washing water stored in the tank 800, and supplies the washing water to the Zet spout 214 via the Zet side water supply channel 380.

Next, the valve unit according to the embodiment of the present invention will be described in detail with reference to FIG. FIG. 2 is a partial cross-sectional view showing a water supply valve in the valve unit according to the embodiment of the present invention. Note that FIG. 2 shows a state in which the communication port is closed by the water supply valve.

As shown in FIG. 2, the valve unit 600 intersects the water inlet section 610 and the water inlet section 610 to which the water supply channel 320, which is a primary side flow path for supplying wash water from a water supply source (not shown), is connected, and is secondary. A water outlet 630 forming a side flow path and a communication unit 650 that protrudes into the water inlet 610 from an inner wall surface 612 connected to the water outlet 630 of the water inlet 610 and communicates between the water inlet 610 and the water outlet 630. Has.
A constant flow valve 620 is provided in the water inlet 610. Further, the secondary side flow path formed by the water discharge portion 630 is connected to the rim side water supply channel 340 and the tank side water supply channel 360 via the vacuum breaker 680 and the switching valve 660 provided downstream of the vacuum breaker 680 (FIG. 1). reference). Further, the water inlet portion 610 is opened with a connection port 614 in which a water supply valve 640 is provided at a position facing the inner wall surfaces 612a and 612b where the communication portion 650 is formed.

As shown in FIG. 2, the communication port 652, which is the entrance of the communication unit 650, is opened and closed by the water supply valve 640.
The water supply valve 640 is a pilot flow path that communicates the valve body 641, the pressure chamber portion 642 that forms a pressure chamber on the opposite side of the communication port 652 with the valve body 641, and the inside of the pressure chamber portion 642 and the water outlet portion 630. It has 644 and a control valve 646 that opens and closes the pilot flow path 644. The water supply valve 640 is a type in which the control valve 646 does not open and close the flow path formed in the valve body 641, and is a so-called main valve separation type pilot type diaphragm valve.

The valve body 641 is composed of a diaphragm 641a having a convolution portion which is made of rubber and is a thin-walled folded portion, and a holding member 641b for holding the diaphragm 641a. Further, the valve body 641 is provided with a bleed hole 641c (communication flow path) that communicates between the inside of the water inlet portion 610 and the inside of the pressure chamber portion 642.

A cleaning pin 647 for preventing dust clogging is inserted in the bleed hole 641c, and the cleaning pin 647 is fixed to the pressure chamber portion 642. Therefore, every time the valve body 641 moves, the inner peripheral surface of the bleed hole 641c and the cleaning pin 647 come into contact with each other, and malfunction of the valve body 641 due to foreign matter adhering to the inner peripheral surface of the bleed hole 641c is suppressed. The cleaning pin 647 also functions as a guide means for guiding the opening / closing operation of the valve body 641.

Further, as shown in FIG. 2, the communication portion 650 projects outward from the inner end 614a of the connection port 614. That is, the communication portion 650 is the side on which the communication portion 650 is formed from the inner wall surfaces 612a and 612b on the inner wall surface 612 on the downstream side (downstream side from the constant flow valve 620) of the water inlet portion 610 and the side connected to the water discharge portion 630. It protrudes to a position beyond the inner wall surface 612c on the opposite side of the above.

The height positions of the inner wall surfaces 612a and 612b of the water inlet 610 in which the communication portion 650 is formed, which surrounds the communication portion 650, with respect to the communication port 652 are constant. That is, the amount of protrusion of the communication portion 650 from the inner wall surface 612 is the same over the entire circumference of the communication portion 650 around the central axis extending in the flow direction of the communication portion 650. In addition, "surrounding the communication part" may mean surrounding the range where the water pressure due to the washing water toward the valve body becomes more uniform with respect to the valve body. For example, the connection port 614 is moved to the water discharge part 630 side. This is the projected area.

In the washing water supply device 1 according to the embodiment of the present invention described above, when the control valve 646 is opened, the pressure in the pressure chamber portion 642 drops to almost the same pressure as in the water discharge portion 630, and the force applied to the valve body 641. The balance is lost, the valve body 641 is separated from the communication portion 650, and the water supply valve 640 is opened.
When the control valve 646 is closed, the pilot flow path 644 is closed, water flows from the water inlet portion 610 through the bleed hole 641c, flows into the pressure chamber portion 642, and the pressure in the pressure chamber portion 642 is the pressure of the water inlet portion 610. The valve body 641 is in close contact with the communication portion 650 and the communication port 652 is closed. When the valve body 641 moves in the direction of closing the communication port 652, water pressure is applied to the valve body 641 by the washing water flowing around the communication section 650 via the constant flow rate valve 620 in the water inlet section 610.

According to the washing water supply device 1 of the toilet bowl device 100 according to the embodiment of the present invention described above, the water inlet portion 610 is connected with the water supply valve 640 provided at a position facing the inner wall surfaces 612b and 612c where the communication portion 650 is formed. Since the port 614 is opened and the communication portion 650 protrudes outward from the inner end 614a of the connection port 614, the washing water that goes to the valve body 641 through the communication portion 650 as compared with the case where it does not protrude to the outside. The water pressure is likely to be uniform with respect to the valve body 641, and it is possible to prevent the pressure applied to the valve body 641 from becoming non-uniform. Therefore, the valve body 641 can be made difficult to tilt without increasing the size of the valve body 641, and the occurrence of damage can be suppressed.

Further, according to the washing water supply device 1 of the toilet device 100 according to the embodiment of the present invention described above, the communication ports 652 of the inner wall surfaces 612a and 612b of the water inlet 610 in which the communication part 650 is formed surrounding the communication part 650. Since the height position with respect to the valve body is constant, the water pressure due to the washing water flowing around the communication portion 650 and toward the valve body 641 tends to be more uniform with respect to the valve body 641 than in the case where the height position is not constant. It is possible to further suppress the non-uniformity of the pressure. Therefore, the valve body 641 can be made difficult to tilt without increasing the size of the valve body 641, and the occurrence of damage can be suppressed.

Further, according to the toilet bowl device 100 according to the embodiment of the present invention described above, the valve body 641 can be made difficult to tilt and the occurrence of damage can be suppressed without increasing the size of the valve body 641. Therefore, it is possible to suppress the increase in size of the washing water supply device 1, and it is possible to secure the degree of freedom in the layout of the washing water supply device 1 in the toilet bowl device 100.

1 Washing water supply device 100 Toilet bowl device 200 Toilet bowl 210 Bowl part 212 Rim spout 214 Zet spout 220 Drain trap pipeline 320 Water supply channel 340 Rim side water supply channel 360 Tank side water supply channel 370 Pump side water supply channel 380 Zet side water supply channel 390 Drainage channel 600 Valve unit 610 Water inlet 614 Connection port 620 Constant flow valve 630 Water outlet 640 Water supply valve (pilot type diaphragm valve)
641 Valve body 641a Diaphragm 641b Holding part 641c Bleed hole (communication flow path)
642 Pressure chamber part 644 Pilot flow path 646 Control valve 647 Cleaning pin 650 Communication part 652 Communication port 680 Vacuum breaker 684 Water receiving part 660 Switching valve 800 Tank 900 Pressurized pump

Claims (3)

A wash water supply device that supplies wash water to the toilet bowl.
The water inlet portion forming the primary side flow path, the water discharge part intersecting the water inlet part to form the secondary side flow path, and the inner wall surface connected to the water outlet part of the water inlet part into the water inlet part. It is provided with a communication portion that protrudes and communicates between the inside of the water inlet portion and the inside of the water outlet portion, and a pilot type diaphragm valve that opens and closes the communication port that is the entrance of the communication portion.
The diaphragm valve communicates between a valve body, a pressure chamber portion that forms a pressure chamber on the opposite side of the communication port with the valve body, and a water inlet portion and the pressure chamber portion that are formed in the valve body. It has a communication flow path for communicating, a pilot flow path for communicating the pressure chamber portion and the water discharge portion, and a control valve for opening and closing the pilot flow path.
A connection port in which the diaphragm valve is provided is opened in the water inlet portion at a position facing the inner wall surface on which the communication portion is formed.
The communicating portion is protruded to the outside from the inner end of the connecting port,
The communication portion is a washing water supply device configured to reduce the diameter toward the communication port. The washing water supply device according to claim 1, wherein the height position of the inner wall surface of the water inlet portion forming the communication portion surrounding the communication portion with respect to the communication port is constant. A toilet bowl device including the washing water supply device according to claim 1 or 2.

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