JPS607142B2 - valve body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a valve body used for controlling the flow rate and shutting off of water and other gases.

Conventionally, the conventionally used valve body is made up of a disc part with a punch in the center of the upper surface and a screw punch in the center of the lower surface of the piece body. This is attached to the lower surface of the valve body through a washer and a nut.When stopping water, etc., rotate the handle by hand to lower the valve body, push down the piece body,
The packing of the valve body was strongly pressed onto the valve seat to shut off water.

However, in most cases, the valve stem was lowered by rotating the handle with more force than could be used to stop the water, and in this case, the force applied to the bridge body was directly transmitted through the disk. Due to the strong force applied to the packing and therefore pressing the packing onto the valve seat, the packing wears out quickly, and the valve seat part also wears out early, causing the packing effect to be lost early, and furthermore, the valve stem The threaded portion also has many drawbacks such as premature wear.

In addition, a washer is provided at the lower part of the valve shaft, a protruding iron joint end is provided at the lower end, and the valve shaft insertion hole provided inside the valve body made of synthetic resin, hard rubber, etc. is inserted into the protrusion of the valve shaft. The upper surface of the valve body is in contact with the lower surface of the washer, and the lower part of the valve body has a half-barrel-shaped and gently curved sloping peripheral surface; and a control valve that protrudes in and out of the valve port,
A guided valve for a faucet, comprising a guide with a cross section protruding around the control valve, and an annular valve having a substantially semicircular cross section and corresponding to the valve seat of the valve opening on the outer periphery of the base of the control valve. (
Japanese Utility Model Publication No. 49-75125) states, ``Even in this case, if you want to stop the water, rotate the handle by hand to lower the handle shaft, push down the valve shaft, and forcefully move the annular valve of the valve body onto the valve seat. Therefore, like the valve body described above, the annular valve part of the valve body wears out quickly, and the valve seat part also wears out early, causing the packing effect to be lost. ,
Furthermore, the threaded portion of the handle shaft also has many drawbacks, such as premature wear. The present invention has been made in view of the above-mentioned circumstances, and includes covering the disc portion of the bridge body with a cover-like packing made of a thick disc-shaped body made of rubber, synthetic resin, etc.
The expansion of the circular protrusion formed at the center of the outer bottom surface of the cover-like packing reliably closes the valve seat opening, and also allows the annular protrusion on the outer peripheral side of the circular protrusion to come into close contact with the valve seat. Even if you apply a force to the valve stem that is more than enough to completely shut off the flow of water, etc., the force will not be transmitted to the annular protrusion of the cover-like packing, and the It is an object of the present invention to provide a valve body that can transmit a force weaker than the above-mentioned force, thereby reducing the wear of the cover-like packing and the valve seat, as well as the wear of the threaded portion of the valve shank. It is something to do.

That is, the present invention has a disc-shaped space part from the middle to the upper part of a thick disc-shaped body made of rubber, synthetic resin, etc., and an inverted conical shape in the center of the inner bottom of this space part. It has a hollow and an annular protrusion on its outer circumferential side, and has an opening □ with a diameter slightly smaller than the diameter of the space in the center of the upper surface above the space, passing through the space. A cover-like packing having an annular protrusion supporting the valve seat and a circular protrusion in the center thereof protruding downward from the annular protrusion to close the valve seat □ is disposed on the outer periphery of the outer bottom surface. A disc part that is iron-fitted to the space through the opening of the cover-like packing, a village body provided at the center of its top surface, and a village body provided at the center of its bottom surface, located at the center of the inner bottom of the space. A piece body has a spherical protrusion that is inserted into an inverted cone-shaped recess, and a disk part of the piece body has a spherical shape provided on the annular protrusion and at the center of the bottom surface of the disk part. The present invention will be described below with reference to an example in which the present invention is applied to a water-sensor main body 15 shown in the attached drawings, which relates to a valve body installed such that the protrusion is located within an inverted cone-shaped recess. be.

The present invention has a disc-shaped space 2 in the middle and upper part of a thick disc-shaped body made of rubber, synthetic resin, etc., and the center of the inner bottom 3 of this space 2 has an inverted conical shape. It has a recess 4 and an annular protrusion 5 on its outer periphery, and a closing opening 7 with a diameter slightly smaller than the diameter of the space 2 is provided in the center of the upper surface 6 above the space 2. On the outer periphery of the outer bottom surface 8 of the disc-shaped body, there is an annular protrusion 9 that supports the valve seat 19, and a valve seat opening 2 that protrudes downward from the annular protrusion 9 in the center thereof.
A cover-like packing 1 having a circular protrusion 10 that closes the cover-like packing 1 is provided on the disk part 12 and the central part 12a of the upper surface thereof, which are iron-coupled to the space part 2 through the opening 7 of the cover-like packing 1. A piece is mounted on a piece body 13 having a punch body 11 and a spherical protrusion 14 provided at the center of its bottom surface 12b and inserted into an inverted cone-shaped recess 4 at the center of the inner bottom 3 of the space 2. The disc part 12 of the body 13 is placed on the annular protrusion 5,
The valve body is installed so that the spherical protrusion 14 provided at the center of the bottom surface 12b of the disc portion 12 is located within the inverted conical recess 4, as shown in FIG. To describe the case where the valve is attached to the faucet main body 15, a valve seat 19 and a valve seat □20 are formed on a partition wall 18 provided on the faucet main body 15 that partitions a water supply port side 16 and a drain port side 17, and, A handle 24 is attached to the upper part of a valve runner 23 with a threaded part 22 screwed into a threaded part 21 provided on the faucet body 15, and the valve body of the present invention is positioned above the valve seat 19 and the valve seat □20. At the same time, the village body 11 of the piece body 13 is inserted into a hole 25 provided at the lower center of the valve stem 23, and
The bottom surface portion 26 of the piece body 13 is located in the opening 7 provided at the center of the top surface portion 6 of the cover-like packing 1, and the bottom surface portion 26 of the piece body 13
It is arranged so that it rests against the upper surface part 12a of No. 2.

In this way, the annular protrusion 9 formed on the outer periphery of the outer bottom surface 8 of the cover-like packing 1 and which rests against the valve seat 19 is located on the valve seat 19 as described above, and A circular protrusion 10 is formed at the center of the outer bottom surface 8 of the cover-like packing 1 so as to protrude below the annular protrusion 9 and is inserted into the valve seat opening 20 to close it. be.

In the present invention, as shown in FIG. 1, when the handle 24 is rotated and the valve stem 23 attached to it is raised, water flows from the water supply port side 16 of the faucet body 15 to the valve seat □201.
Then, the cover-like packing 1 made of rubber, synthetic resin, etc. that covers the disc part 12 of the piece body 13 located above is pushed up with water, and the piece body 13 is pushed up together.
Since the upper surface 12a of the disk portion 12 of the bridge body 13 is supported by the bottom surface 26 of the valve stem 23, the outer bottom surface 8 of the cover-like packing 1 is spaced above the valve seat 19 and the valve seat □20. ,
Therefore, water that has entered the valve seat opening 201 passes through the gap 27 and flows toward the drain port side 17.

Next, if you want to stop the flow of water, rotate the handle 24 in the opposite direction and push down the valve stem 23.
3, push down the cover-like packing 1,
As shown in FIG. 2, first, a circular protrusion is formed at the center of the outer bottom surface 8 of the cover-like packing 1 and protrudes downward from the annular protrusion 9 on the outer periphery of the outer bottom surface 8. When the part 10 is inserted into the valve seat □ 201, the annular protrusion 9 on the outer circumference of the bottom part 8 is pressed onto the valve seat 19, and the valve stem 23 is further pushed down. Since the bridge body 13 is pushed down by the bottom surface 26 of the valve stem 23, the bottom surface 12b of the disk portion 12 is located at the center of the inner bottom of the disk-shaped space 2 provided in the upper interior of the cover-like packing 1. As shown in FIG. 3, an annular protrusion 5 formed on the outer circumferential side of an inverted conical recess 4 provided in the disk portion 12 is pressed, and at the same time, a spherical protrusion provided in the center of the bottom portion 12b of the disc portion 12 is pressed. 14 is deeply inserted into the inverted cone-shaped recess 4 provided at the center of the inner bottom 3 of the space 2 of the cover-like packing, and in order to spread the recess 4, the lower part of the cover-like packing 1 is inserted. The valve seat receives a force in the direction of the arrow in the figure, so that the entire circular protrusion 10 formed at the center of the outer bottom surface 8 of the cover-like packing 1 is forcibly inserted into the valve seat □ 201. Moreover, the circular protrusion 1
The outer circumferential portion 10a of the valve seat opening 20 is pushed outward and tightly pressed against the inner circumferential portion 20a of the valve seat opening 20. Since the portion 9 is strongly pressed onto the valve seat 19, it is possible to reliably stop water from flowing through the valve seat □20 toward the drain port side 17.

Therefore, when the water is turned off and the water starts flowing again, the handle 24 is rotated to raise the valve shank 23, and the annular protrusion 5 of the inner bottom 3 of the cover-like packing 1 returns to its original shape. Push up the disk portion 12 of the piece body 13 as shown in FIG. 2, and
Since the spherical protrusion 14 is no longer pressed against the inverted conical recess 4, the circular protrusion 10 at the center of the outer bottom surface 8 of the cover-like packing 1 shrinks and returns to its original shape. The close contact with the seat opening 20 is released, and furthermore, the annular protrusion 9 of the outer peripheral portion of the outer bottom surface portion 8 of the cover-like packing 1 is released from being pressed against the valve seat 19.

At the same time, the cover-like packing 1 is pushed up by the water trying to go towards the drain side 17 via the valve seat □20, resulting in the state shown in Fig. 1, and the water flows towards the drain side 17. It is something. In this case, when the valve stem 23 is raised, the annular protrusion 5 on the inner bottom 3 of the space 2 quickly returns to its original shape because the cover-like packing 1 is made of elastic material such as rubber or synthetic resin. When the disk part of the piece body is pushed up and the spherical protrusion 14 is released from being pressed against the inverted conical recess 4, the circular protrusion in the center of the outer bottom surface part 8 of the cover-like packing 1 becomes flat. In order to quickly return to its original shape, the valve seat □ of the circular protrusion 10
The close contact between the two rivers is also quickly broken, so that when the water flows through the valve seat opening 20 to the drain port side 17 again, it flows smoothly.

As described above, the present invention has a disc-shaped space 2 from the middle to the upper part of a thick disc-shaped body made of rubber or synthetic resin, and has a disc-shaped space 2 at the center of the inner bottom 3 of this space 2. It has an inverted conical depression 4 and an annular protrusion 5 on its outer circumferential side, and an opening □ 7 with a diameter slightly smaller than the diameter of the space 2 is formed in the center of the upper surface 6 above the space 2. The outer bottom surface 8 of the disc-shaped body has an annular protrusion 9 on the outer periphery that supports the valve seat 19, and a valve seat ○ in the center thereof that protrudes downward from the annular protrusion 9. A cover-like packing 1 having a circular protrusion 10 that closes the cover-like packing 1 is provided on the disk part 12 and the central part 12a of the upper surface thereof, which are iron-coupled to the space part 2 through the entrance 7 of the cover-like packing 1. The punch body 11 and its bottom part 12
a spherical protrusion 1 provided in the center of b and inserted into an inverted cone-shaped recess 4 in the center of the inner bottom 3 of the space 2;
4, a spherical protrusion 14 provided on the annular protrusion 5 of the disk portion 12 of the piece body 13 and at the center of the bottom surface 12b of the disk portion 12 has an inverted conical shape. The circular protrusion 1 at the center of the outer bottom surface 8 of the cover-like packing 1
0, the valve seat opening 20 is reliably closed, and the annular protrusion 9 on the outer periphery of the outer bottom surface portion 8 is well pressed onto the valve seat 19. Water is reliably removed, and since the annular protrusion 5 is pressed by the bottom surface 12b of the disk portion 12 of the piece body 13 when water is stopped, the annular protrusion on the outer periphery of the outer bottom surface 8 of the cover-like packing Even if a force greater than that required to stop water is applied to the bridge body 13 in a state where the part 9 is pressed onto the valve seat cover 9 and the water has already been stopped, the force is absorbed by the annular protrusion 5. The aforementioned pressing force is not directly transmitted to the annular protrusion 9, but a weaker force is transmitted to the annular protrusion 9. Therefore, the wear of the cover-like packing vanes and the wear of the valve seat 19 are prevented, and therefore the service life for a long period of time is reduced. In addition to ensuring water-stopping over a long period of time, cover-shaped packing tatami mats can be used much longer than conventional packing, making them extremely economical.

Furthermore, since less force is applied to the threaded portion 22 of the valve stem 23, wear on the threaded portion 22 can be reduced. It can be attached by simply inserting the disc part 12 into the space 2 provided in the upper interior of the cover-like packing member through the entrance 7 whose diameter is slightly smaller than the diameter of the space 2. Since it is only necessary to remove the disc part turtle 2 from the closing opening 7, the cover-like packing can be easily replaced, and there is no need for a wrench or the like used when replacing the packing as with conventional products. Furthermore, when the disk part turtle 2 of the piece body 3 is inserted into the upper internal space 2 of the cover-like packing 1 through the opening 7, the upper surface part 6 of the cover-like packing 1
Since the outer periphery of the upper surface 12a of the disc part 12 is surrounded, the cover-like packing is not easily removed from the piece body turtle 3, and the disc part 12 of the piece body 13 is
Since it is covered with cover-like packing 1, it can also be prevented from freezing.

Furthermore, the present invention is not limited to all of the above-mentioned hydraulic systems, but can also be used for the circulation and interruption of gases and the like.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and ``Drawing 2 is a partially longitudinal front view of the faucet main body showing the state of use of the present invention''. FIG. 3 is a partially longitudinal front view of the present invention in a case where the cover-like packing is strongly pressed against the valve seat □ and the valve seat to shut off water. FIG. 4 is a partially longitudinal front view of the present invention. Fig. 5 is a bottom view of the same, Fig. 6 is a cross-sectional plan view taken along the 0-Ro line in Fig. 2, and Fig. 7 is a bottom view of the piece body. Cover-like packing
2...Space part 3...Inner bottom part 4...Inverted conical depression, 5 Annular protrusion 6...Top surface part, 7...
... Open □ is also 8... Outer bottom part " 9... Annular protrusion Tome 0... Circular protrusion " Tokime... Village body, Army 2... Disc part t Army 2a... Top part: Neck 2...Bottom part, Government 3
...Komatai, 84...・Protrusion, army 9...valve seat 28...valve seat opening. Figure 8 Figure 7 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. A thick disc-shaped body made of rubber, synthetic resin, etc. has a disc-shaped space from the middle to the top, and an inverted conical depression in the center of the inner bottom of this space and its outer periphery. an annular protrusion on the side, and an opening having a diameter slightly smaller than the diameter of the space in the center of the upper surface above the space, communicating with the space;
The outer circumferential portion of the outer bottom surface of the disc-shaped body has a cover-like shape having an annular protrusion that abuts the valve seat and a circular protrusion in the center that protrudes downward from the annular protrusion to close the valve seat opening. Packing is provided at the center of the disc part fitted into the space through the opening of the cover-like packing, the rod provided at the center of the top surface thereof, and the center of the bottom part of the disc part, and the center of the inner bottom of the space. A piece body has a spherical protrusion that fits into an inverted cone-shaped recess in the piece body, and a disc part of the piece body is provided on the annular protrusion part and at the center of the bottom part of the disc part. A valve body with a spherical protrusion located within an inverted conical recess.