JPH0464783A - Stop and flow regulation device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water stop/flow control device for water heaters and water supply equipment that are widely used for home and commercial purposes.

BACKGROUND OF THE INVENTION In recent years, devices with water shutoff and flow rate adjustment devices have been widely used.

Conventionally, this type of water stop/flow control device generally had a configuration as shown in FIG. The configuration will be explained below.

As shown in the figure, the water cutoff/flow rate tII node device has an operation section 1.
The shaft AlO3 is directly connected to the main body 102 and moves up and down by screwing with the main body 102, and the old shaft 05, which is linked to the vertical movement of the shaft AlO3 and has a gas cap and eye 04 attached to its tip, and the gasket 104 come into contact and separate. valve seat 106
and an inflow passage 107 and an outflow passage 108 that separate from the valve seat 106.
It is formed by. In the above configuration, the inflow path 107
Water is stopped by gasket I04 closing valve seat 106. When the shaft AlO3 is raised by turning the operation part 101, the shaft B105 is also raised, the gasket 104 opens the valve seat 106, and the water in the inflow path 107 flows into the outflow path 108. The flow rate is adjusted by turning the operating section 101 to increase or decrease the distance between the gasket 104 and the valve seat 106.

Problems to be Solved by the Invention In such a conventional water stop/flow rate adjustment device, water is stopped by bringing the gasket 104 and the valve seat 106 into close contact, so the water pressure in the inlet channel 107 is directly applied to the gas keratin 04. Therefore, there was a problem of poor water-stopping properties. Furthermore, since the flow rate is adjusted by rotating the operating section 101 and increasing or decreasing the distance between the gasket 104 and the valve seat 106, the flow rate adjustment range is determined by changing the rotation angle of the operating section 101, as shown in FIG. 3a. The problem was that the flow rate was small and it was difficult to adjust the flow rate.

The present invention solves the above-mentioned problems, and an object of the present invention is to provide a water-stopping/flow-rate adjustment device that has good water-stopping properties and is easy to adjust the flow rate.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention includes: an operating section mounted on an upper body so as to be vertically movable and rotatable; a heart cam and mechanism operated by a pressing operation of the operating section; A shaft gasket attached to the tip of the shaft of the heart cam, a diaphragm plate suspended from the lower end of the upper body via a diaphragm valve so as to be vertically movable and forming a pilot chamber at the lower end of the upper body, and the lower body. an inflow passage and an outflow passage formed in the diaphragm plate, a pilot hole bored in the diaphragm plate to communicate the pilot chamber and the inflow passage; When the shaft is lowered, the shaft gasket closes the water hole, and the water pressure flowing from the pilot hole into the pilot chamber lowers the diaphragm plate, and the diaphragm valve This is to close the space between the inflow channel and the outflow channel to stop water.

Further, the lower body has a cock or a flow rate regulating valve disposed in the inflow passage or the outflow passage, and the cock or the flow rate regulating valve is rotated in conjunction with the rotation operation of the operating portion, and the cock or flow rate regulating valve is It opens and closes the inflow or outflow path.

Further, the lower body has a flow rate regulating valve disposed in the inflow passage or the outflow passage, and the flow rate regulation valve moves up and down in conjunction with the rotational operation of the operating section, and It opens and closes roads.

Operation The present invention has the above-described configuration and uses a so-called pilot-type diaphragm valve that utilizes the water pressure of the water in the inlet channel, so it has good water-stopping properties. By moving the flow rate control valve up and down, it is possible to easily adjust the flow rate to tli1.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.

As shown in the figure, a vertically movable operating section 3 is disposed on the surface of a device 1 such as a water heater, which operates a known heart cam mechanism 2 disposed on an upper body 7 by a Bushe push operation. There is. Further, the operating section 3 is rotatable in order to rotate or move the cock or the flow control valve 19 up and down. Shaft 4 connected to heart cam mechanism 2
A shaft gasket 5 made of an elastic member is attached to the tip of the shaft. The spring 6 urges the shaft 4 upward.

A diaphragm plate 9 is suspended at the lower end of the upper body 7 via a diaphragm valve 8 facing a valve seat 16 formed in the lower body 12, and is suspended between the diaphragm plate 9 and the recess 10 at the lower end of the upper body 7. A closed pilot chamber 11 is formed.

A pilot hole 15 is bored in the surface of the diaphragm plate 9 to communicate a water inflow path 13 formed in the lower body 12 with the pilot chamber 11 . In addition, a water outflow passage 14 formed in the lower body 12 and a pilot chamber 1 are provided in the central part.
A water passage hole 16 is bored through which the water passage 1 is connected. This water passage hole 16 is closed by a shaft gasket 5 when the shaft 4 of the heart cam mechanism 2 is lowered. 18 is a partition wall that partitions the inflow path 13 and the outflow path 14.

A cock or flow control valve 19 is rotatably disposed in the inflow path 13 . A shaft 20 is connected to the flow control valve 19, and rotates in conjunction with the rotation of the operating section 3 by a rotation transmission means such as a gear.

Note that, as shown in FIG.
converts the vertical movement of the shaft 20 into the vertical movement of the flow control valve 1.
9 may be moved up and down in conjunction with the rotation of the operating section 3.

The operation in the above configuration will be explained.

When the operating part 3 is pressed and the shaft 4 of the heart cam mechanism 2 is in a free state, the shaft 4 is pushed upward by the spring 6, and the shaft gasket 5 and the water passage hole 16 of the diaphragm plate 9 are separated. . In this state, the water from the inflow path 13 flows through the path of the inflow path 13 - the pilot hole 15 - the pilot chamber 11 - the water passage hole 16 - the outflow path 14, and the water pressure in the pilot chamber 11 is lower than that of the inflow path 13. Become. As a result, the diaphragm plate 9
The diaphragm valve 8 and the valve seat 17 are opened by being pushed up by the water pressure of 3, and the water in the inflow path 13 flows from this gap to the outflow path 14 as shown by the arrow and is supplied with water.

When the operating portion 3 is pressed to operate the heart cam mechanism 2 and the shaft 4 is lowered, the shaft gasket 5 comes into contact with the water passage hole 16 of the diaphragm plate 9 and the water passage hole 16 is closed. In this state, the water pressure in the inlet passage 13 is
5 to the pilot chamber 11, the diaphragm plate 9 is pushed down and the diaphragm valve 8 comes into contact with the valve seat 17. Due to this contact, the inflow path 13 and the outflow path 14 are cut off and water is stopped.

The diaphragm valve 8 used for this series of water flow/water shutoff operations is called a "pilot type diaphragm valve" in the art.

In the device of the present invention that can reliably supply and stop water in this way, in order to adjust the flow rate, as shown in FIG.
When the operation part 3 is pressed to enter the water supply state described above and then the operation part 3 is rotated, the shaft 20 rotates in conjunction with this rotation operation, and the cock connected to the shaft 20 or the flow rate is adjusted. The control valve 19 rotates. Water flows through the water supply channel 13 through the slit 21 of the flow rate control valve 19. In this embodiment, the slit 21 is formed in a part of the side surface of the flow rate control valve 19. As shown in Figure 3, during flow rate adjustment M is large and tends to change linearly, making it easier to adjust the flow rate. Note that the flow rate control valve 19 is not limited to one having the slit 21 formed therein, but may be a valve normally used for a valve or the like.

Further, as shown in FIG. 3, when the operation section 3 is pressed to enter the above-mentioned water supply state and then the operation section 3 is rotated, the shaft 2 is
0 moves up and down, and the flow control valve 19 connected to the shaft 20 moves up and down. Then, water flows through the gap between the flow rate tA regulating valve 19 and the inflow path 13. Here, since the inflow passage 13 has a circular cross section, in order to make the relationship between the flow rate linear during flow rate adjustment as shown in Figure 3, the cam surface of the cam 22 may be formed into a non-linear shape. That is clear.

As described above, according to the water shutoff/flow rate adjustment device of the embodiment of the present invention, the pilot type diaphragm valve 8 is used to shut off water by utilizing the water pressure on the inlet channel 13 side, so that water shutoff performance is improved. In addition, the slit 21 formed in the flow rate control valve 19 has the effect of making it easier to adjust the flow rate.

Effects of the Invention As is clear from the above description of the embodiments, the present invention uses a so-called pilot type diaphragm valve that utilizes the water pressure of the water in the inlet channel, so it has good water-stopping properties, and It is possible to provide a water stop/flow rate adjustment device in which the flow rate can be easily adjusted by rotating a flow rate adjustment valve provided with a slit or by moving the flow rate adjustment valve up and down.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a water stop/flow rate regulating device according to an embodiment of the present invention, Fig. 2 is a side sectional view of another embodiment, and Fig. 3 is a water cutoff of an embodiment of the present invention and a conventional example.・Adjusting the flow rate of the flow rate adjustment device -
FIG. 4, a characteristic diagram showing the relationship between flow rates, is a side sectional view of a conventional water cutoff/flow rate adjustment device. 2...Heart cam mechanism, 3...Operation unit, 4...Shaft, 5...Shaft gasket, 7...Upper body, 8 ...Diaphragm valve, 9...Diaphragm plate, 11.
...Pilot room, 12...Lower body 1
3... Inflow channel, 14... Outflow channel, 15
...Pilot hole, 16...Water hole,
19...Flow rate control valve. Name of agent: Patent attorney Shigetaka Awano 1 person T3-5L
human language 1m

Claims (3)

[Claims] (1) An operating section attached to the upper body so as to be vertically movable and rotatable, a heart cam mechanism activated by a pressing operation of the operating section, a shaft gasket attached to the tip of the shaft of the heart cam, and the upper body. a diaphragm plate that is vertically movably suspended from the lower end of the upper body via a diaphragm valve and forms a pilot chamber at the lower end of the upper body;
an inflow passage and an outflow passage formed in the lower body; a pilot hole bored in the diaphragm plate and communicating the pilot chamber and the inflow passage; and a pilot chamber bored in the diaphragm plate; and a water hole communicating with the outflow passage, and when the shaft is lowered, the shaft gasket closes the water hole, and the diaphragm plate is lowered by water pressure flowing into the pilot chamber from the pilot hole. , a water shutoff/flow rate adjustment device that shuts off water by closing a space between the inflow path and the outflow path using the diaphragm valve; (2) having a cock or a flow rate regulating valve disposed in the inflow passage or the outflow passage formed in the lower body, the cock or flow regulating valve being moved and rotated by the rotational operation of the operating section; The water stop/flow rate regulating device according to claim 1, wherein the inflow channel or the outflow channel is opened and closed. (3) A flow rate adjustment valve is provided in the inflow path or the outflow path formed in the lower body, and the flow rate adjustment valve moves up and down in conjunction with the rotational operation of the operating section, and The water stop/flow rate regulating device according to claim (1), which opens and closes the outflow path.