JP2001329581A - Faucet with water theft preventing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the water theft preventing function of a faucet. SOLUTION: A through hole 28 reaching the peripheral face on one side from the peripheral face on the other side through the inner space of a protective tube 3 is bored on the opening side than the tip section 12 of a spindle 10 on the protective tube 3. The bar 32 of a key 30 can be inserted into the through hole for locking. Since the bar 32 crosses the inside of the protective tube 3 in a locked state, a handle shaft 16 or another apparatus cannot be inserted into the tip section 12 of the spindle 10 from the opening of the protective tube 3, thereby this faucet cannot be opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stopcock having a water theft prevention mechanism in which a handle for rotating a valve is detachable.

[0002]

2. Description of the Related Art A spline is formed at the tip of a spindle for rotating a valve for interrupting water flow, and the spline portion is used as a water stopcock body as a water stopcock for preventing water theft or opening / closing operation due to tampering. In some cases, a small gap is provided on the side of the protrusion, and the protrusion is covered with a cylindrical cap. To rotate the stopcock valve, a cylindrical handle shaft with a spline on the inside of the tip is inserted into the gap between the spindle tip and the cap from the opening of the cap, and the spline of the handle shaft and the spline of the spindle tip are connected. The coupling rotates the valve through rotation of the spindle. As described above, since the stopcock cannot be opened and closed without the handle shaft, theft and mischief can be prevented.

[0003]

Such a stopcock is,
Although the opening and closing operation cannot be performed without a special handle shaft that can be inserted between the spline part at the tip of the spindle and the cap, the handle shaft itself is not very special and other stopcocks It is possible to substitute the handle shaft of the present invention, and it is not so difficult to find an alternative to such a handle shaft. Therefore, it is not easy to effectively prevent water theft and mischief with only such a water theft prevention mechanism. An object of the present invention is to further enhance the function of a water stopcock provided with such a water theft prevention mechanism.

[0004]

SUMMARY OF THE INVENTION A water stopcock to which the present invention is directed is a water stopcock having a mechanism for preventing water theft as described above. That is, in the present invention, the valve is housed in the water stopcock body, and the tip of the spindle for rotating the valve protrudes from the water stopcock body, and is combined with the tip of the spindle to rotate the valve via the spindle. The present invention relates to an improvement of a water stopcock in which a handle shaft is detachably attached. In the present invention, a protection cylinder surrounding the distal end of the spindle and having a height higher than the distal end of the spindle and having an open distal end is provided integrally with the water stopcock main body. A through-hole passing through the internal space is formed on the distal end side of the distal end portion, and the rod is locked through the through-hole so that insertion of the handle shaft can be prevented.

[0005] To prevent opening and closing of the water stopcock, a rod is locked through a through hole of the protective cylinder. In the locked state, the rod crosses the hollow portion of the protective cylinder, preventing insertion of the handle shaft. When opening and closing the water stopcock, the locking of the through hole of the protection cylinder is released. As a result, the handle shaft can be inserted from the opening of the protection cylinder and coupled to the tip of the spindle.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A stopcock may require maintenance. For example, the valve may need to be removed for repair or replacement. In order to maintain the valve, the spindle is preferably provided detachably from the valve, and the stopcock body is preferably constructed so that the valve can be removed. In this case, it is preferable that the protection cylinder of the present invention has a larger inner diameter than the maximum outer diameter of the spindle so that the spindle can be taken out.

Since the protection cylinder has an opening at its tip, it is preferable to close the opening when the handle shaft is not inserted so as to prevent dust or the like from entering the inside.
For this purpose, it is preferable that a mechanism for detachably attaching the lid is provided at the tip of the protective cylinder. When the spindle can be removed from the protection cylinder, the inner diameter of the protection cylinder is larger than the maximum diameter of the outer diameter of the spindle. Preferably, the members are mounted. It is preferable that the guide member is detachably attached to a mechanism for attaching a lid that closes the opening at the distal end of the protective cylinder.

[0008]

FIG. 1 shows an embodiment. Reference numeral 2 denotes a main body of a water stopcock, in which a spherical valve (ball valve) 4 having a communication hole for interrupting water flow is housed. The water stop port body is provided with a water inlet port 6 and a water outlet port 8, which are connected via a communication hole of the valve 4. The water inlet port 6 is connected to the water main pipe side, and the water outlet port 8 is directly connected to the water meter and connected to the downstream water pipe via the water meter.

A hole is formed in the water stopcock main body 2 in a direction perpendicular to the water flow direction, and a spindle 10 is detachably inserted into the hole. A protrusion is formed at the base end of the spindle 10, and the protrusion is engaged with the recess provided in the valve 4 so as to be connected to the valve 4.
By rotating 0, the valve 4 can be rotated. Two O-rings 11 are fitted into the spindle 10 to seal a gap with the inner wall of the hole of the water stopcock main body 2 into which the spindle 10 is inserted, thereby preventing water leakage from the valve 4.

[0010] A spline is formed at the tip 12 of the spindle 10, and the tip 12 protrudes from the water stopcock main body 2. The rotation range of the spindle 10 is a range of 90 degrees at which water flow is intermittent, and the rotation range of the spindle 10 is 90 degrees.
The spindle 10 is provided with a protruding portion 18 protruding in the radial direction in order to restrict the degree of rotation. Stopper 2 for regulating the rotation range of 10
0 is provided. When the protrusion 18 comes into contact with the stopper 20, the spindle 10 can rotate only within a range of 90 degrees.

A protective cylinder 3 integrated with the water stopcock main body 2 is provided around the tip 12 of the spindle 10.
The protection cylinder 3 surrounds the distal end portion 12 of the spindle 10, has a height higher than the distal end portion 12 of the spindle 10, and has an open distal end. In the protective cylinder 3, a through-hole 28 is formed from the one peripheral surface to the opposite peripheral surface through the internal space of the protective cylinder 3 on the opening side of the distal end portion 12 of the spindle 10. The stick 32 of the key 30 can be locked through the through hole 28. The key 30 may be of any type.

The inner diameter of the protection cylinder 3 has a radius larger than the maximum diameter of the outer diameter of the spindle 10, that is, the radius from the center of the projection 18. Therefore, when the spindle 10 is detached from the valve 4 and pulled out from the hole of the water stopcock main body 2, the spindle 10 can be taken out from the distal end opening of the protection cylinder 3. A male screw 3 a for detachably attaching the lid 34 is provided at the tip of the protective cylinder 3. By screwing the female screw of the lid 34 into the male screw 3a, the opening of the protective tube 3 can be closed.

The handle 14 is for rotating the valve 4. The handle shaft 16 is cylindrical, and a spline groove 17 is formed on the inside of the tip thereof for coupling with the spline at the tip 12 of the spindle 10. . Handle shaft 16
When the handle shaft 1 is connected to the tip 12 of the spindle 10, the handle shaft 1
6 is fitted with a guide member 15a. Guide member 15
“a” has the same outer shape as the lid 34, and a guide hole for guiding the handle shaft 16 is formed in the center thereof. Guide member 15
A step 15b is provided on the handle shaft 16 so that the guide member 15a does not fall off the handle shaft 16, and the guide member 15a is slidable only between the step 15b and the knob of the handle 14.

In place of the cover 34, the guide member 15a is
Screwed into the screw 3a at the tip of the handle shaft 1
The spline groove 17 at the distal end of the spindle 6 is connected to the spline at the distal end 12 of the spindle 10, and the spindle 14 can be stably rotated by the handle 14.

The water outlet port 8 is connected to the water stopcock main body 2 by a screw, and the water discharge port 8 can be removed from the water stopcock main body 2 by returning the screw. When the spindle 10 is pulled out from the stopcock body 2 and removed from the valve 4, and the water outlet port 8 is removed from the stopcock body 2, the valve 4 can be taken out from the stopcock body 2. When the valve 4 breaks down, it can be taken out of the water stopcock body 2 for repair or replacement.

Next, a method of using the water stopcock will be described. Connect the water inlet port 6 of the water stopcock body 2 to a water pipe,
A water pipe is connected to the water outlet port 8 via a water meter. When the stopcock is used in an open state or in a closed state in which no water flows, a cover 34 is provided on the screw 3a at the opening end of the protection cylinder 3 so that the protection cylinder 3 is closed. Is closed and the key rod 32 is locked in the through hole 28. In this state, since the rod 32 traverses the inside of the protection cylinder 3, even if the cover 34 of the protection cylinder 3 is removed, the handle shaft 16 and other tools are inserted into the distal end portion 12 of the spindle 10 from the opening of the protection cylinder 3. Can not open and close the stopcock.

When using the water stopcock, the key 30 is removed, the lid 34 is removed, and the handle shaft 1 is removed from the opening of the protective cylinder 3.
Then, the guide member 15a is screwed into the screw 3a at the tip of the protection tube 3. As a result, the spline at the tip 12 of the spindle 10 and the spline groove 1 of the handle shaft 16 are formed.
And 7 are combined. Thereafter, the handle 14 may be rotated.

FIG. 2 shows another embodiment. Compared with the embodiment of FIG. 1, the structure of the cover 34 and the guide member of the handle shaft is different, but the other structures are the same. The description of the same structure as in FIG. 1 will be omitted, and different points will be described. The guide member 22 of the handle shaft 16 is not attached to the handle shaft 16 in this embodiment, and the screw 3a at the distal end of the protection cylinder 3 is used.
Is screwed into. A hole at the center of the guide member 22 is formed smaller than the inner diameter of the protection cylinder 3 for guiding the handle shaft 16. A male screw 22 a for screwing the lid 34 is provided at an outer end of the guide member 22.

In this embodiment, the guide member 22 is attached to the tip of the protection cylinder 3 and is detached from the protection cylinder 3 when the spindle 10 is removed. The state shown in FIG. 2 is a state in which the stopcock is used in an open state or in a closed state in which no water is allowed to flow, and the opening of the protective cylinder 3 is closed by a lid 34. , Key 30.

When using this water stopcock, the key 30 is removed, the lid 34 is removed, and the handle shaft 1 is removed from the opening of the protective cylinder 3.
6, the spline at the tip 12 of the spindle 10 and the spline groove 17 of the handle shaft 16 are connected.
The shape of the water stopcock main body is not limited to the embodiment. In the embodiment, the incoming water direction and the outgoing water direction are on a straight line.
The same can be applied to a type that makes sense.

The method of locking the rod through the through hole 28 is as follows.
The key is not limited to the one using the key as in the embodiment, but any key can be used as long as a rod-shaped member can be passed through the hole 28 and locked so that the member does not come off. Spindle tip 12 and handle shaft 1
Although the spline and the spline groove are used to mechanically connect the shaft 6 and the shaft 6, the serration and other connecting means may be used.

[0022]

According to the present invention, a protection cylinder is provided so as to surround the tip of the spindle for rotating the valve of the water stopcock, and the rod can be locked through the rod on the opening side of the protection cylinder. In the locked state, since the handle cannot be inserted into the protection cylinder and mechanically coupled to the tip of the spindle to rotate the spindle, it is possible to more effectively prevent theft and mischief.

[Brief description of the drawings]

FIG. 1 is a front view partially showing a cross section of an embodiment.

FIG. 2 is a front view partially showing a cross section of another embodiment.

[Explanation of symbols]

 2 Stopcock body 3 Protective cylinder 4 Valve 10 Spindle 12 Spindle tip 16 Handle shaft 22 Protective cylinder 28 Through hole 30 Key 32 Rod

Claims (3)

[Claims] 1. A valve is accommodated in a water stopcock main body, and a tip of a spindle for rotating the valve protrudes from the water stopcock main body, and is connected to a tip of the spindle to rotate the valve via the spindle. A water stopcock having a handle shaft to be detachably attached to the water stopcock, wherein a protection cylinder surrounding the distal end of the spindle and having a height higher than the distal end of the spindle and having an open distal end is provided. The protection cylinder is provided with a through-hole passing through the internal space on the tip side from the tip of the spindle, and the handle shaft is inserted by locking the through-hole through a rod. A water stopcock having a water theft prevention mechanism characterized in that it can be prevented. 2. A structure in which the inner diameter of the protection cylinder is larger than the maximum diameter of the outer diameter of the spindle, the spindle is provided detachably from the valve, and the water stopcock body has a structure in which the valve can be taken out. The water stopcock according to claim 1, wherein 3. The water stopcock according to claim 1, wherein a mechanism for detachably attaching a lid or a guide member of the handle shaft is provided at a distal end portion of the protection cylinder.