JPH0440062Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to an opening/closing prevention type water stop valve that is connected to water pipes and is used to prevent unauthorized use.

[Prior art]

Generally, this kind of opening/closing prevention type water stop valve that cannot be used without permission is well known, such as that disclosed in Japanese Utility Model Publication No. 57-52465. The structure of the opening/closing prevention mechanism in this conventional example is that coupling holes for serration or spline coupling are formed opposite to the centers of the spindle and handle shaft, respectively, and a connector for serration or spline coupling is formed across both of these coupling holes. The spindle and the handle shaft are selectively connected and disconnected by inserting and removing the connector, and by removing the connector from the insertion and removal position. By storing it away, you can prevent it from opening and closing.

[Problem that the idea aims to solve]

The measures to prevent the water stop valve from opening and closing in the conventional example are as follows:
This is done by removing a specified connector, but when removing this connector, it is not possible to check whether the water stop valve is properly closed by simply turning the handle, After closing the faucet, it is necessary to go indoors where the water can be accessed and check whether the faucet, etc. is open or closed, which poses a problem in that the checking work is troublesome and has poor work efficiency. In addition, not only must connectors be stored and managed each time they are removed, but the coupling holes may remain in the same state after the connector is removed.
Especially considering that this type of water stop valve is installed inside a meter box, when the meter box is flooded, foreign matter such as muddy water often enters the connection hole, making it impossible to insert or remove the connector. There is also the issue of disappearing.

[Means to solve the problem]

As a specific means for solving the problems of the conventional example, the present invention provides a cylindrical case that is integrally attached to the upper part of the body of the stopcock, the upper end of the stopper rod protrudes into the case, and A collar is provided with a boss portion projecting laterally in the upper end thereof, and a collar is provided with a J-shaped cut groove that can be freely fitted and removed and that the boss portion engages with. A spring member is provided at the lower end of the collar, faces the kerf, and biases the boss portion in one direction, and the boss portion biases the spring member only when the plug portion is actuated in the closing direction. The present invention provides an opening/closing prevention type water stop valve characterized in that the collar can be removed by pushing it back, and by providing the J-shaped cut groove and the spring member, the plug part can be completely removed. The removal stopper rod cannot be removed until it is closed.
There is no need to leave the cap unused due to a half-closed state, and since the collar and the top end of the stopper rod are mated and uncoupled, even if foreign matter gets stuck, there is no problem in mating and disengaging the two. be.

【Example】

Next, the present invention will be explained in more detail with reference to the illustrated embodiment. Reference numeral 1 denotes a water stop valve main body, and a stopper part 3 is disposed inside the body 2 of the stop valve main body, and the stopper member is opened and closed. A plug rod 4 extends upward from the body 2, and its end 4a projects upward. A housing 6 is integrally screwed onto the upper part of the body 2 via a gasket 5, a gasket 7 is inserted into the upper part of the housing 6, and a gasket presser 8 for pressing the gasket is attached to the housing. It is screwed onto the body 6, so that the body 2 is almost completely watertight. Furthermore, a cylindrical case 9 is integrally attached to the upper part of the packing presser 8 or the housing 6 by screwing or gluing, and a lid member 10 is attached to the upper part of the case.
is attached removably. The upper end portion 4a of the plug rod 4 passes through the housing 6 and the locking presser 8, and projects into the case 9. A threaded portion 11 is carved on the lower end side of the stopper rod 4, and is screwed into the threaded portion 12 of the housing 6, so that the stopper portion 3 moves up and down as the stopper rod 4 rotates. It is configured to open and close the water stop valve. A boss portion 13 is provided on the upper end portion 4a of the stopper rod so as to project laterally, and a substantially J-shaped groove 14 is provided in which the upper end portion 4a fits and the boss portion 13 engages. A collar 15 is attached to the lower end of the removal stopper rod 16, and the upper end 16a of the removal stopper rod 16 penetrates the lid member 10 and protrudes to the outside. 18. A spring member 19 is attached to the lower end surface of the collar 15 so as to face the J-shaped groove 14, and the spring member always biases the boss portion 13 that engages in the groove 14 in one direction. It works like this. This one direction refers to the curved engaging portion 1 in the J-shaped kerf 14.
4a side, and when the boss portion 13 is engaged with this engaging portion, the stopper rod 4 is rotating in the direction of opening the stopper. Therefore, when the boss portion 13 is disengaged from the engaging portion 14a and acts in the direction of pushing back the spring member 19, it is the time when the stopper rod 4 rotates in the direction of closing the stopper. In addition, the reference numeral 20 indicates the plug rod 16 after removing the collar 15.
This is a pin to fix it to.

[Explanation of operation]

The operation of the opening/closing prevention type water stop valve of the present invention having the above configuration will be explained. The state shown in FIG. 1 is the closed state, and when the handle 17 is rotated counterclockwise from this position, the stopper portion 3 is raised by the rotation of the stopper rod 4, and the stopper is opened. At this time, the boss portion 13 is moved into the groove 14 by the spring pressure of the spring member 19.
The cap is engaged with the engaging portion 14a of the cap, and can be opened in a stable state. Next, when the water supply is not in use, after the stopper 3 has been accurately closed to prevent water leakage, the removal stopper rod 16 must be removed to prevent unauthorized use.
When removing the collar 15, the collar 15 cannot be removed by simply pulling the removal stopper rod 16 upward because the boss portion 13 is engaged with the engaging portion 14a by the spring member 19. Therefore, by turning the handle 17 clockwise, the collar 15
Then, the stopper 3 is closed via the stopper rod 4, and when the stopper is correctly closed, the handle 17 is pulled upward while rotating the handle 17 clockwise. Then, the collar 15 comes out from the stopper rod 4. That is, by rotating the handle 17 clockwise, the boss portion 13 pushes back the spring member 19 to be located on the kerf 14 side from the engaging portion 14a, and while maintaining this state, the handle 17 is pulled upward. This causes the collar 15 to come out of the stopper rod 4. Therefore,
Turning the handle 17 clockwise is the act of closing the closure 3, and the collar 15 can be removed from the closure rod 4 after closure has been established. Then, after removing the removal stopper rod 16 together with the lid member 10, the blind lid 21 may be screwed onto the upper part of the case 9.

[Effect of the idea]

As explained above, the opening/closing prevention type water stop valve according to the present invention has a cylindrical case integrally attached to the upper part of the body of the water stop valve, and the upper end of the stopper rod protruding into the case. A detachable stopper rod having a handle attached thereto, a collar having a boss portion projecting laterally on the upper end thereof and a J-shaped cut groove that can be freely fitted and removed and engaged with the boss portion. A spring member is provided at the lower end of the collar, facing the kerf, and spring-biasing the boss portion in one direction. Since the collar is configured so that it can be removed by pushing it back, in order to prevent unauthorized use when the water supply is not in use, when attempting to remove the detachable stopper rod to which the handle is attached, the collar is moved in the direction that closes the stopper. Since it cannot be removed without rotating it, not only is it securely closed and there is no water leakage, but after the removal stopper rod is removed, it is completely surrounded by the case. It has various excellent effects, such as being unable to open with other jigs and almost completely preventing unauthorized use.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the stop valve of the anti-opening type according to the present invention, Fig. 2 is a sectional view showing the state in which the stop valve is closed and the removal valve rod is removed, and Fig. 3 is a sectional view of the stop valve. A sectional view of the main parts showing the process of closing the stopcock and removing the removal stopper rod, Fig. 4 is a sectional view showing the state of the stopcock with the removal stopper rod removed, and Fig. 5 shows the removal stopcock of the same stopcock. FIG. 2 is a cross-sectional view of only the main parts showing the stopcock side after the rod is removed. 1... Stop valve body, 2... Body, 3... Stop part,
4... Stopper rod, 4a... Upper end of stopper rod, 5, 7...
Packaging, 6... Housing, 8... Packing presser, 9
... Case, 10 ... Lid member, 11, 12 ... Thread part, 13 ... Boss part, 14 ... Cut groove, 15 ...
Collar, 16... Removal stopper rod, 16a... Upper end, 17... Handle, 18... Screw, 19...
Spring member, 20...pin, 21...blind lid.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cylindrical case is integrally attached to the upper part of the body of the stopcock, and the upper end of the stopper rod protrudes within the case, and the upper end is directed laterally. A collar is provided at the lower end of the removal stopper rod to which the handle is attached, and the collar is provided with a J-shaped cut groove that can be freely engaged and detached from the upper end thereof and that is engaged with the boss. a spring member is provided on the collar facing the kerf and biasing the boss portion in one direction;
An opening/closing prevention type faucet characterized in that the boss part pushes back a spring member and the collar can be removed only when the faucet part is actuated in the closing direction. (2) The opening/closing prevention type water stop valve according to claim 1, wherein the removal stopper rod is removed from the case together with the lid member, and a blind lid is placed on the case.