JPS6119262Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water stop valve structure for a quantitative water stop valve that closes the water stop valve to stop water when a set amount of water is discharged.

The above-mentioned metered water stop valve generally includes a water stop valve inside the vessel,
It consists of an impeller and a metering section that measures the rotation of the impeller by flowing water and opens and closes the water stop valve.The water stop valve is supported by a valve seat support inside the container. The valve seat is made up of a valve seat and a ball that closes the valve hole in the center of the valve seat by sitting on the valve seat. The following problems arose in the case where the ball was housed through the cylindrical body. In other words, in the above structure, if the valve hole of the valve seat and the axial direction of the cylinder body are horizontal, it is necessary to replace the valve seat, which is also a gasket, or to clean and replace the strainer if a strainer is placed at the opening at the other end of the cylinder body. The ball sometimes fell out of the cylinder and was lost. However, if the ball is provided with a stopper on the cylinder, the ball will not fall off or be lost, but when assembling the cylinder, the ball must be inserted into the cylinder and the cylinder must be assembled, but this time the valve of the cylinder is During assembly, the valve may fall out from the opening at one end in contact with the seat or valve seat support surface and enter the vessel, reducing work efficiency.

The present invention was developed in consideration of these points, and its purpose is to create a fixed amount water stop valve that can prevent the ball from falling out of the cylinder and also allows for easy installation of the cylinder. The purpose is to provide a water stop valve structure.

To explain the present invention below, the present invention provides a protrusion for preventing the ball from falling off at the other end opening of the cylinder whose one end is in contact with the valve seat or valve seat support, and also forms a passage space for the ball at a specific position. Particularly, the ball does not pass through the opening at the other end of the cylindrical body and hits the protruding piece unless the ball is in a specific position. In the figure, reference numeral 1 denotes a container body, and as shown in FIG.
3, the interior is divided into left and right. Of the two chambers partitioned off from each other, one chamber has a discharge port 47 at the bottom, and an impeller 15 is disposed therein.
The other chamber has a water stop valve 2 installed therein through its side opening, and a water metering section is placed in the upper part of both chambers where they communicate with each other. Water flowing in from the socket 41 passes through the water stop valve 2 and through the hole 49 in the partition wall 13.
After the impeller 15 is rotated, the water exits from the water spout 47. To explain the above-mentioned volumetric water section, this water flows out from the impeller 15 and the reduction gear train 16, 1.
7, pinion 18, gear 19, friction clutch 20
The rotation of the impeller 15 is transmitted to the main shaft 21 through these members. The main shaft 21 has an operation dial 14 fixedly arranged on the upper part of the body 1, and also has the gear 19 fixed thereto via a friction clutch 20, and furthermore, the cam 3 is rotated in conjunction with the main shaft 21. It is installed on. The cam 3 has two cam surfaces on its lower surface, the upper end of the control rod 4 contacts the outer cam surface, and the upper end of the movable shaft 5 contacts the inner cam surface. The control rod 4 has its lower end positioned on the water stop valve 2, which is composed of a ball 26, a valve seat 27, and a cylindrical body 28 containing the ball 26, and is slidable in the vertical axial direction. , a piston 36 which together with a cylinder 35 constitutes a doss pot 8 is provided in the center. This dart pot 8 uses the water flowing inside the container body 1 as a working fluid to relieve water hammer when the water stop valve 2 is opened.

In the figure, 6 is a shaft that supports the impeller 15 and the reduction gear train 17, and is arranged parallel to the movable shaft 5 that supports the reduction gear train 17 and the pinion 18. An engaging body 2 that engages with the blades of the impeller 15 to prevent rotation of the impeller 15 during continuous water discharging.
3 is provided, and the movable shaft 5 is urged upward by a spring 24. As shown in FIG. 3, the control rod 4, shaft 6, and movable shaft 5 are housed and supported within a cartridge 7 consisting of a pair of upper and lower cases and a lid that closes the top surface. A reduction wheel train 16, 17, and a dart pot 8 are also housed in this cartridge 7. Incidentally, an opening is provided in the cartridge cartridge 7 on the side surface of the housing portion of the impeller 15.

The cartridge 7 is inserted into the cylindrical part 12 on the top surface of the vessel 1, the water stop valve 2 is inserted into the vessel 1 together with the strainer 29 from the side opening, and the operating handle 14 attached to the main shaft 21 is inserted into the cylindrical part 12. The outer surface of the portion 12 is covered. 25 is a cover that is rotatable with respect to the main shaft 21 and is attached to the cylindrical portion 12 of the container body 1 in a water-tight manner to press and fix the cartridge 7; 50 is attached to the side opening of the container body 1 in a water-tight manner. It is a cap that can be used.

In this case, the control rod 4 is pressed by the cam 3 by rotating the operation dial 14, and the cylindrical body 28 is
ball 26 with control rod 4 through cutout 41 in the side wall of
When pressed, the ball 26 that was in contact with the valve seat 27 is separated from the valve seat 27 by water pressure, opening the valve, and the water rotates the impeller 15 and exits from the discharge port 47.
The rotation of the impeller 15 at this time causes the cam 3 to rotate at a slow speed, and the control rod 4 is depressed into the recess 33 of the cam 3 when the set amount of water has been discharged. The ball 26 is released from the pressure of the control rod 4 and comes into contact with the valve seat 27 due to water pressure, thereby closing the valve.

Now, to explain the water stop valve 2 in detail, the cylindrical body 28 is for directing the flow of water in the axial direction of the valve hole 42 of the annular valve seat 27 made of an elastic material, and is used as a valve seat support part. It has a protrusion 46 at one end that fits into a groove 43 provided on the other side of the periphery of the valve seat 27, which is arranged so that one side is in contact with the periphery of the hole 49 of the partition wall 13, and the above-mentioned control is provided on the upper surface. It has a notch 41 through which the rod 4 is inserted, and both side edges of the notch 41 extending to one end are made of elastic pieces 51 having spring properties, as is clear from FIG. Further, the cartridge 7 that accommodates the control rod 4 is provided with an engaging protrusion 52 which extends the support portion of the control rod 4 downward and has protrusions 53 protruding from both sides. A plurality of thin elastic protrusions 54 are provided inward at the other end opening of the cylindrical body 28 at equal intervals.
The inner diameter formed by the projecting piece 54 is made slightly smaller than the diameter of the ball 26.

Therefore, when assembling, the cartridge 7 is placed and fixed in the container body 1, and then the water stop valve 2 is installed from the side opening.
Insert. At this time, the engaging protrusion 52 of the cartridge 7 bends the elastic pieces 51 on both sides and the notch 41
The cylindrical body 28 is positioned within the cylindrical body 28 around its axis and is prevented from rotating. Further, the protrusion 46 at one end of the cylindrical body 28 fits into the groove 43 of the valve seat 27 and fixes the peripheral edge of the valve seat 27. After this, the ball 26 is housed in the cylindrical body 28. This is done by bending the projecting piece 54 to form a space in the center of the cylinder 28 through which the ball 26 can pass.
Next, the strainer 29 is inserted and the cap 50 is screwed on. Even if the flow rate adjustment valve 45 is closed to replace or clean the strainer 29, and the cap 50 is removed and the strainer 29 is pulled out, the ball 26 remains in the protrusion 5.
It will not fall out due to 4.

FIG. 5 shows another embodiment of the cylinder 28. As mentioned above, this cylinder 28 is installed with rotation being prevented by the engagement between the notch 41 and the engagement protrusion 52, but at the time of this installation, a vertically downward portion crosses the opening of the cylinder 28. A protruding piece 54 is provided. The projecting piece 54 is provided so as to form a gap larger than the diameter of the ball 26 between its upper surface and the upper opening of the cylindrical body 28. The ball 26 is a cylinder 28
The ball 26 must be floated upward within the cylinder to prevent it from falling out of the cylinder 28, and during assembly, the ball 26 can be easily inserted into the cylinder 28 from the space through which it can pass.

As described above, the present invention has good workability during assembly, and at the same time, the ball does not fall off from the cylindrical body.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a horizontal sectional view of the same, Fig. 3 is a cutaway front view of the same cartridge, and Fig. 4 a, b, and c are left side surfaces of the cylinder. The figure, sectional view, right side view, and FIG. 5 are side views of other embodiments of the cylindrical body. 1 is the vessel body, 2 is the water stop valve, 4
26 is a control rod, 26 is a ball, 27 is a valve seat, 28 is a cylindrical body, and 54 is a protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A water stop valve disposed in the middle of the flow path in the container, a water metering section that detects the amount of water passing through the flow path by the rotation of an impeller that rotates with flowing water, and A metering water stop valve having a control rod that opens and closes the water stop valve by being driven by an output from the water stop valve; It is composed of a ball that contacts the valve seat by water pressure to close the valve hole, and a cylindrical body that houses the ball and makes the water flow direction the axial direction of the valve hole of the valve seat, and has one end. A water stop valve for a metered water stop faucet, in which a protrusion for preventing the ball from falling off is provided at the other end opening of the cylindrical body in contact with the valve seat or valve seat support, and a space through which the ball can pass is formed at a specific position. structure. (2) A water stop valve structure for a metered water stop valve as set forth in claim 1 of the utility model registration claim, wherein the projecting piece has elasticity and the opening diameter at the other end of the cylinder is smaller than the ball diameter. . (3) Registration of a utility model characterized in that the protrusion is provided at the bottom of the opening of the cylindrical body in the vertical direction, and a gap larger than the ball diameter is provided at the upper part of the opening of the cylindrical body. A water stop valve structure for a quantitative water stop valve according to claim 1.