JPH0212057Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a device for replacing a valve body, packing, etc. in a water valve or the like without cutting off the water supply.

[Conventional technology]

Conventionally, water meter stop valves in water pipes are the source of stop valves, whose valve bodies, gaskets, etc. are regularly replaced to prevent water leakage.

[Problem that the invention attempts to solve]

However, when replacing the valve body of this valve,
Water main valves had to be closed to cut off water to a wide range of piping systems for an extended period of time, causing inconvenience to families in the area, and night construction work had to be carried out late at night, reducing work efficiency. There were problems such as low yield and high cost.

[Means for Solving the Problems] In order to solve the above-mentioned problems, this invention uses a T-shaped device that rotates the valve body screwed into the upper opening of the valve body of the valve body in order to attach and detach it. It consists of a wrench and a watertight outer cylindrical body that covers the main parts of the T-shaped wrench, a locking means for pulling up the valve body is provided in the socket part of the wrench, and a center A water stop pot is attached to the valve body, and a preliminary chamber is provided between the water stop pot and the upper end cap to store the socket and valve body being pulled up, and a watertight seal is provided at the bottom opening to the flange of the upper opening of the valve box. It is provided with a fastening means for locking it.

[Effect]

According to this invention, the outer cylindrical body is attached to the valve body in a watertight manner, and in this state, a T-shaped wrench is operated to remove the valve body from the upper opening of the valve body of the valve body, and pull it up to the preliminary chamber. After closing, remove the upper end cap and pull out the valve body from here.
At this time, water was not cut off, but water could be prevented from being discharged by the watertight outer cylinder. Note that a new valve body can be screwed onto the valve body by performing the reverse operation.

〔Example〕

FIG. 1 shows a first embodiment of this invention. The device for replacing a valve body of the first embodiment has a handle that rotates the valve body 3, which is screwed into and removed from an opening 2 having a female thread above a valve body 1. It consists of a long T-shaped wrench 4 and a watertight cylindrical outer body 5 that completely covers the lower half of the wrench 4.

The wrench 4 consists of a hexagonal box-shaped socket 6, a handle 7 made of a round bar, and a handle 8.
A valve body locking means consisting of a spring 10 and a ball 11 is provided in the small hole 9 on the inner surface of the valve body.
This ball 11 is useful when fitting the socket 6 into the double nut 12 of the valve body 3 into the gap 36 and pulling up the valve body 3 from the valve body 1.

The outer cylindrical body 5 has a spherical water stopper 1 in the center.
3 is attached, water stop pot 13 and upper end cap 1
4, there is provided a preliminary chamber 15 for storing the socket 6 and the valve body 3 (see the chain line in FIG. 1) which are being pulled up.
7 and a retaining collar 18 are provided. In this fastening means, a ring seal 16 is tightly circumscribed on a flange 19 at the opening of the valve box 1, and when the flange 19 is held by a claw member 17 and a presser collar 18 having a tapered inner surface is pushed in from above, the valve box 1 is made watertight. It will be possible to lock it to.

The cap 14 is screwed onto the upper end opening of the outer cylindrical body 5 in a watertight manner, and has a handle 7 of the wrench 4 in the center.
A through hole 20 is provided through which the valve body 3 is inserted in a watertight manner.
It is removed from the outer cylindrical body 5 when taking it out.

The outer cylindrical body 5 is located at the lower part of the water stopper 13.
The lower cylindrical body 21 can be attached and detached via screws 22. This is the size of the valve body 3, for example 13
This is because the lower cylinder bodies of different sizes can be replaced as appropriate to correspond to mm, 20 mm, and 25 mm.

The water stop pot 13 is a spherical valve supported by a horizontal shaft 23, a handle 24 is attached to the end of the horizontal shaft 23, and a wrench insertion hole is provided in the center.

This device for replacing the valve body of a valve allows the valve body 3 to be replaced without water cutoff, and when using this device, the flange 1 of the opening 2 of the valve body 1 is
9 holds the claw member 17 and presses the presser collar 18 downward to fix the outer cylinder 5 in a watertight manner. Next, the wrench 4 is lowered, the socket 6 is fitted into the double nut 12 of the valve body 3, and the socket 6 is turned to remove the valve body 3 from the valve body 1, and the valve body 3 is pulled up to the preliminary chamber 15. Water from the water pipe system is discharged and fills the outer cylindrical body 5, but does not leak outside. At this time, it is preferable to loosen the valve body 3 in advance using another wrench to an extent that water does not leak (details will be described later).

Furthermore, hold the handle 24 and
When the valve body 3 is closed and the cap 14 is turned to separate it from the outer cylinder body 5, the valve body 3 is taken out together with the wrench 4.

When updating the valve 25 of the valve body 3 or the main body of the valve body 3 and installing a new one, the removal operation as described above is reversed, that is, the cap 14 is screwed onto the upper end of the outer cylinder body 5. Open the water stopper 13 and remove the outer cylinder 5.
The valve is restored to its original state by filling the interior with water, lowering the wrench 4, and screwing the valve body 3 into the upper opening 2 of the valve box 1. In addition, the valve body 3 locked to the wrench 4
Attach the valve 25 to the valve body 3 to prevent the valve 25 from falling.
Temporarily attach them with a harmless, odorless, and tasteless water-soluble adhesive.

FIG. 2 shows a second embodiment of this invention. The valve body replacement device of the second embodiment uses a claw member 17 attached to the lower end of the outer cylinder body 5 as a fastening means for engaging the flange 19 at the upper opening of the valve box 1. A ball 26 is attached to the tip instead of a claw so that the ball 26 can be inserted below the flange 19.

FIG. 3 shows a third embodiment of this invention. The valve body replacement device of the third embodiment omits the claw member 17 and presser collar 18 as the above-mentioned fastening means, and uses a band 27 that holds the valve case 1 instead. The hook-shaped free end is fixed with a presser fitting 28.

In addition to the above-mentioned embodiments, various types of cylindrical contact means are available as the fastening means for engaging the flange 19 of the upper opening of the valve body 1.

FIG. 4 shows the wrench aid according to this invention. This wrench auxiliary tool 29 is used when loosening the valve body 3 in advance to the extent that water does not leak out, or when strongly tightening the renewed valve body 3. A handle 33 is provided on the upper side of the cylindrical body 30.
is provided to protrude laterally, and a through hole 34 through which the handle 7 of a wrench 44 is inserted is bored in the center of the top plate.

When using this wrench auxiliary tool 29, make a notch 3 at the both end joint nuts 31 of the valve body 1.
2 and press it down, grip the handle 33 firmly to fix it to the valve body, grip the handle 8 of the wrench 44 with the socket 6 fitted to the double nut 12 of the valve body 3, and apply strong force in opposite directions. By inserting the valve into the valve body, the tightly tightened valve body 3 can be easily loosened, and an unreasonable twisting moment will not be applied to the water pipes 35 (see Figure 1) that are connected to both ends of the valve body. Vinyl pipes have the advantage of being able to prevent damage due to the twisting moment that occurs when loosening a tightly tightened valve body.

〔effect〕

As described above, the device for replacing the valve body of a valve according to this invention consists of a T-shaped wrench that rotates the valve body and a watertight outer cylindrical body that covers the wrench. It is equipped with a water stopper, and if the valve body and gasket are replaced regularly using this, repair work can be carried out without water outages, and the area can be repaired as usual. The construction work can be carried out efficiently during the day without causing water outages to households, and by using a wrench aid, the work can be easily done without damaging the PVC pipes connected to both ends of the valve. It has the advantage of being able to be attached and detached.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a first embodiment of this invention, Fig. 2 is a longitudinal sectional view of main parts showing a second embodiment of this invention, and Fig. 3 is a longitudinal sectional view showing a third embodiment of this invention. FIG. 4 is a longitudinal sectional view of the main part of the wrench auxiliary tool according to the invention. 1... Valve box, 3... Valve body, 4, 44... Wrench, 5... Outer cylinder, 6... Socket, 12... Double nut, 13... Water stop socket, 14... Cap, 15... ...Preliminary room, 29...wrench aid.

Claims (1)

[Scope of utility model registration request] The valve body consists of a T-shaped wrench that rotates the valve body screwed into the upper opening of the valve box to attach and detach it, and a watertight outer cylindrical body that covers the main parts of the T-shaped wrench, and a socket for the wrench. The outer cylindrical body is provided with a locking means for pulling up the valve body, and the outer cylindrical body is provided with a water stop socket in the center, and between this water stop socket and the upper end cap, the socket and valve are connected while being pulled up. A device for replacing the valve body of a valve, which has a spare chamber for storing the valve body, and a lower end opening that is provided with a fastening means that is watertightly engaged with a flange of the upper opening of the valve box.