JPS5915805Y2 - Ball valve type water stop valve with water theft prevention mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water stop valve that has a mechanism to prevent water theft, non-payment of water charges, and theft.

By the way, as a conventionally known technique,
531 and Utility Model Application No. 52-77429 are known, but in these, the bundle and the valve drive spindle are integrated when in use, and are operationally separated when not in use. However, in either case, the bundle portion is easily removable, so it is not possible to ensure practicality in preventing water theft.

This invention makes it possible to prevent the valve from opening or closing with any external tool by adding a simple operation when it is necessary to maintain a water stop state in a ball valve type water stop valve, and to prevent the valve from opening or closing with any external tool. This design is designed to make water theft, non-payment of water charges, and theft of water stop valve parts impossible by making it impossible to remove parts such as water from the main body.

An embodiment of the present invention will be described below with reference to the drawings.
Reference numeral 1 designates a water stop valve main body, which has a main port 1a and a secondary port 1b, and a ball valve 3 having a through hole 3a is rotatably supported by a seat 2 at an intermediate portion thereof.

A support cylindrical portion 1C is connected to the upper part of the main body 1, and a drive spindle 4 for the ball valve 3 is rotatably provided in the support cylindrical portion 1C via an O-ring 5.

A square retaining portion 4a is provided at the upper end of the drive spindle 4, and a connecting tube 6 having a circular outer periphery is connected to the square hole 6 of the connecting tube 6.
They are engaged via a.

Reference numeral 7 designates a bundle, and a screw insertion hole 7a is provided in the center of the bundle, passing through it in the vertical direction and communicating with the square hole 6a of the connecting tube 6, and the lower end of the screw insertion hole 7a is provided with a square hole of the connecting tube 6 6
A square hole 7b that matches the shape of the square hole 7b is formed, and a circular accommodation hole 7C that matches the connection tube 6 is formed in the lower part of the square hole 7b. The cylindrical portions 7d are connected to each other.

Annular engagement grooves 1C1 and 7d1 are formed at opposing positions on the outer circumference of the support cylinder part 1C and the inner circumference of the bundle cylinder part 7d, and the split ring 8 is engaged with both layered engagement grooves 1c1 and 7d1. The split ring 8 allows the bundle 7 to be attached to the supporting cylinder part 1.
The detachment is prevented in the state where it can rotate with respect to C.

9 is a connecting fitting that engages with the square holes 6a and 7b;
It is provided so as to be slidable up and down in this portion.

The connecting fitting 9 has a screw hole 9a for a screw 10.

In the above structure, during normal use, the screw 10 is screwed into the threaded hole 9a of the connecting fitting 9, pulling up the connecting fitting 9, and connecting it to the square hole 6a of the connecting tube 6 and the square hole 7b of the bundle 7.
Since the bundle 7 is rotated, the connecting tube 6 or the spindle 4 is rotated via the connecting fitting 9, thereby opening and closing the ball valve 3.

When not in use, the ball valve 3 is placed in the closed position as shown in Fig. 2, and the screw 10 is rotated to unthread the connection fitting 9, so that the connection fitting 9 falls downward and releases the bundle. 7
Since the bundle 7 is removed from the square hole 7b of the bundle 7, the bundle 7 rotates idly, making it impossible to open the valve turbulently from the outside.

After the screw 10 is removed, a plug 11 is fitted into the screw insertion hole 7a to prevent dirt and the like from entering the inside.

Although the present invention is constructed as described above, the water theft prevention mechanism can be easily activated by removing the screw, and the bundle is rotatably locked to the support cylinder of the main body by the split ring. Since the water theft prevention mechanism is prevented from leaving, the effectiveness of the water theft prevention mechanism is ensured.

In addition, since a ball valve is used in this invention, the driving spindle does not move up and down relative to the stopper body, and therefore the mutual positional relationship between the bundle and the driving spindle is constant, so the connection fitting that can move up and down The connection of the two by
The separation structure can be made more compact.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the water stop valve according to the present invention, and FIG. 2 is a vertical cross-sectional view showing the same water theft prevention mechanism in operation. DESCRIPTION OF SYMBOLS 1... Main body, 3... Ball valve, 4... Spindle, 6... Connection member, 7... Bundle, 8... Split ring, 9... Connection fitting, 10... Screw.

Claims (1)

[Scope of utility model registration request] A ball valve is opened and closed via a spindle and a bundle, a connecting fitting having a screw hole is provided between the spindle and the bundle so as to be movable up and down, and a removable screw is provided on the bundle to be screwed into the connecting fitting. By this, the connecting fitting is raised to connect the spindle and the bundle, and annular grooves are formed facing each other on the inner periphery of the cylindrical part at the lower part of the bundle and the outer periphery of the cylindrical part at the upper part of the main body, and in the double door-shaped grooves. A ball valve type water stop faucet having a water theft prevention mechanism, characterized in that a split ring is positioned in a state where it is engaged with both layered grooves to prevent the bundle from coming off and is configured to be rotatable.