KR100771984B1 - Water valve having improved stopper - Google Patents

Abstract

A water valve having an improved stopper is provided to prevent a valve body from being damaged, and to replace an adapter simply by mounting a transfer stopper whose center part is sheared. A water valve includes a valve body, an opening/closing ball, a valve stem, a stem pipe, an adapter, and a stopper. The stopper has a fixed stopper integrally formed on the stem pipe, a shear bar(132) having a disk shaped head part(134) and an extension part(136) formed with shear grooves(138), and a moving stopper having a shear block. A first coupling pin hole(146) is vertically formed on one surface of the shear block. A second coupling pin hole(148) is formed on the extension part to be horizontally communicated with the first coupling pin hole. Coupling pins(144) are fitted in the first and second coupling pin holes.

Description

WATER VALVE HAVING IMPROVED STOPPER}

The present invention relates to a water valve having an improved stopper, and in more detail is mounted on the adapter for opening and closing the water valve in contact with the fixed stopper formed in the valve body by the rotational force of the adapter when opening and closing the water valve and recognizes the opening and closing state to the operator In addition, if excessive rotational force is transmitted even after contact with the fixed stopper, the center part is provided with a transfer stopper, so that even if the operator excessively rotates the adapter, the valve body is not damaged and only the adapter can be replaced. The present invention relates to a water valve having an improved stopper that is easy to maintain.

In general, a water valve has a valve body in which a flow path is formed in one direction and a valve chamber is provided therein, an opening / closing ball disposed rotatably in the valve chamber, and a lower end is connected to the opening / closing ball and the upper end thereof. The valve stem extends to the upper outside of the valve body, the lower end is integrally connected to the valve body and the stem tube extending along the valve stem while covering the valve stem exposed to the outside of the valve body, and inserted into the upper part of the valve stem It consists of an adapter that opens and closes the water valve by rotating the valve stem.

A pair of adapter stoppers facing each other are integrally formed on the inner circumferential surface of the above-described adapter, and a pair of fixed stoppers contacting the adapter stoppers are integrally formed to face each other on the upper surface of the stem tube. That is, when the operator rotates the adapter forward to one side, the adapter stopper rotates along the adapter and contacts the fixed stopper. When the adapter stopper and the fixed stopper come into contact with each other, the operator recognizes the open state of the water valve. In addition, when the adapter is reversed to the other side, the adapter stopper rotates along the adapter again to contact the stationary stopper. When the adapter is reversed and the adapter stopper and the stationary stopper come into contact with each other, the operator recognizes the closed state of the water valve. In recent years, the indicator body for indicating the open state and the closed state of the water valve on the valve body is also configured separately.

However, although the adapter stopper is in contact with the above-described fixed stopper and the water valve remains open or closed, if the operator excessively rotates the adapter in the open or closed direction, the fixed stopper is damaged together with the adapter stopper. there was. Due to this problem, the work site is prolonged because the water valve must be replaced after the excavation is performed at a radius of about 3 meters at the construction site, and the water valve must be replaced after the supply is stopped for the line corresponding to the replacement water valve.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is mounted on the adapter for opening and closing the water valve while contacting the fixed stopper formed in the valve body by the rotational force of the adapter when opening and closing the water valve and open and close It is equipped with a conveying stopper that the center part is sheared when excessive rotational force is transmitted even after contact with the stationary stopper, and the valve body is not damaged even if the operator excessively rotates the adapter. It is an object of the present invention to provide a water valve having an improved stopper that is easy to maintain because it may be replaced.

In order to achieve the object of the present invention as described above, the present invention,

The valve body is formed in one direction therein and the valve body is provided with a valve chamber therein, the opening and closing ball disposed to be rotatable in the valve chamber, the lower end is connected to the opening and closing ball and the upper end of the valve body is extended to the outside of the valve body The stem and the lower end are integrally connected to the valve body and surround the valve stem exposed to the outside of the valve body and extend along the valve stem, the adapter which is inserted into the upper part of the valve stem to rotate the valve stem, and the stem A water valve having a stopper formed between a pipe and an adapter,

Stoppers;

A fixed stopper integrally formed on the upper surface of the stem tube so as not to interfere with the rotation of the valve stem, and a horizontal disc-shaped head and the lower center of the head mounted on the upper surface of the adapter through insert molding. A shear bar extending vertically downward from the portion and disposed inside the adapter and having a ring-shaped shear groove concave along the outer circumferential surface on the outer circumferential surface thereof, and through-holes from the upper surface to the lower surface so that the respective extensions can be fitted therein. It consists of a movable stopper having a shear block formed through the first block, the first coupling pin hole is formed perpendicular to the through hole on one side of the shear block in contact with the inner circumferential surface of the adapter and in communication with the first coupling pin hole in the extension portion The second coupling pin hole is formed, the first coupling pin hole and the second coupling pin hole in the extension portion and the shear block Gyeolhaneun provides a valve having also an improved combination stopper pin is fitted.

As described above, the water valve having the improved stopper according to the present invention, when the operator excessively rotates the adapter during opening and closing of the water valve, the shear block hits the fixed stopper, the shear block hitting the fixed stopper By shearing the front groove portion of the extension, it is possible to protect the valve body at the time of opening and closing of the water valve, as well as the need to replace only the adapter without having to replace the entire water valve.

Hereinafter, a water valve having an improved stopper according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view showing a water valve having an improved stopper according to the present invention.

Referring to FIG. 1, the water valve 100 according to the present invention includes a valve body 10 in which a flow path 12 is formed in one direction and a valve chamber 14 is provided therein, and a valve chamber 14. Opening and closing ball 20 is disposed to be rotatable, the lower end is connected to the opening and closing ball 20, the upper end of the valve stem 30 extending to the outer side of the valve body 10, the lower end of the valve body 10 While being integrally connected with the stem tube 40 extending along the valve stem 30 while wrapping the valve stem 30 exposed to the outside of the valve body 10, while being fitted to the upper portion of the valve stem 30 An adapter 50 for rotating the valve stem 30 is provided. Preferably on the top surface of the adapter 50 is formed a projection 52 into which a conventional tool (not shown) for rotating the adapter 50 is fitted. Meanwhile, the water valve 100 further includes a stopper 110 formed between the stem pipe 40 and the adapter 50.

FIG. 2 is an enlarged perspective view of the moving stopper shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2.

1 to 3, the stopper 110 includes a fixed stopper 120 and a moving stopper 130.

First, the fixed stopper 120 is integrally formed to face each other on the upper surface of the stem tube 40 so as not to interfere with the rotation of the valve stem 30.

The moving stopper 130 is fixedly disposed on the inner circumferential surface of the adapter 50 through insert molding. The moving stopper 130 includes a shear block 140 in contact with the fixed stopper 120 while surrounding the shear bar 132 and the shear bar 132.

The shear bar 132 extends vertically downward from the lower central portion of the head 134 and a horizontal disc-shaped head whose upper portion is mounted on the upper surface of the adapter 50 through insert molding. And an extension 136 disposed inside the adapter 50. That is, the head 134 and the extension 136 has a substantially "T" shape. The extension portion 136 thus formed is concavely formed with a ring-shaped shear groove 138 along the outer circumferential surface of the extension portion 136.

On the other hand, the shear block 140 has a hexahedral shape. The shear block 140 is formed with a vertical through hole 142 so that each extension 136 can be fitted, the through hole 142 penetrates through the lower surface from the upper surface of the shear block 140 Is formed. On the other hand, the extension portion 136 and the shear block 140 fitted in the through hole 142 is connected to each other by a coupling pin 144, for this purpose one side of the shear block 140 in contact with the inner peripheral surface of the adapter 50 On the first coupling pin hole 146 is formed perpendicular to the through hole 142, the extension portion 136 is formed with a second coupling pin hole 148 in horizontal communication with the first coupling pin hole 146. That is, the coupling pin 144 is inserted into the second coupling pin hole 148 via the first coupling pin hole 146.

Preferably, one side of the front block 140 has a convexly curved shape to contact the inner circumferential surface of the adapter 50, the other side opposite to one side of the front block 140 is the rotation of the valve stem 30 It has a concave curved shape so as not to interfere with.

The following briefly describes the operating state of the water valve 100 having the improved stopper formed as described above.

First, in order to open the water valve 100, after fastening a normal tool to the protrusion 52 of the adapter 50, the adapter 50 is rotated forward to one side. When the adapter 50 is rotated forward, the valve stem 30 connected to the adapter 50 and the opening and closing ball 20 connected to the valve stem 30 are also rotated forward, and as a result, the flow passage 12 of the valve body 10 is rotated. Guide the fluid while keeping it open.

In this case, the pair of moving stoppers 130 mounted on the adapter 50 also come into contact with the fixed stopper 120 to be rotated along the adapter 50. The moving stopper 130 is in contact with the fixed stopper 120. Similarly, in order to shut off the water valve 100, the adapter 50 is rotated to the other side.

On the other hand, when the operator excessively rotates the adapter 50 when opening and closing the water valve 100, the front end block 140 of the moving stopper 130 hits the fixed stopper 120, as described above When the 140 hits the fixed stopper 120, the shear block 140 pushes the extension 136 while being pushed in the opposite direction of the rotational direction, and as a result, the shear groove 138 of the extension 136 is sheared. It is sheared by the pressure of the block 140 to protect the valve body 10.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims. You will understand.

1 is an exploded perspective view showing a water valve having an improved stopper according to the present invention,

2 is an enlarged perspective view of the moving stopper shown in FIG. 1; and

3 is a cross-sectional view taken along the line A-A of FIG.

Explanation of symbols on the main parts of the drawing

100: water valve with improved stopper 110: stopper

120: fixed stopper 130: moving stopper

132: shear bar 134: head

136: extension portion 138: shear groove

140: shear block 142: through hole

144: coupling pin 146: first coupling pin hole

148: second coupling pin hole

Claims (1)

A valve body formed in one direction therein and a valve body provided therein, an opening / closing ball disposed rotatably in the valve chamber, and a lower end connected to the opening / closing ball and an upper end of the valve body An extended valve stem and a lower end are integrally connected to the valve body and surround the valve stem exposed to the outside of the valve body, and the stem tube extends along the valve stem, and is fitted to an upper portion of the valve stem. A water valve comprising an adapter for rotating a valve stem and a stopper formed between the stem pipe and the adapter, The stopper; A fixed stopper integrally formed on the upper surface of the stem tube so as not to interfere with the rotation of the valve stem, and a horizontal disc-shaped head mounted on the upper surface of the adapter through insert molding; A shear bar extending vertically from the lower central portion of the head downwards to be disposed inside the adapter and having a ring-shaped shear groove concave along the outer circumferential surface on the outer circumferential surface thereof, through which each of the extension portions can be fitted; The ball is composed of a moving stopper having a shear block formed from the upper surface through the lower surface, the first coupling pin hole is formed perpendicular to the through hole on one side of the shear block in contact with the inner peripheral surface of the adapter and the extension The second coupling pin hole is formed in the horizontal communication with the first coupling pin hole, Water valve having an improved stopper, characterized in that the first coupling pin hole and the second coupling pin hole is fitted with a coupling pin connecting the extension portion and the shear block.

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