JPH0253674B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for repairing a water distribution faucet attached to the peripheral wall of a fluid conduit such as a water pipe.

[Conventional technology]

Traditionally, water supply pipes were of the old type.
Water taps made of gunmetal are attached to branch ports drilled at required locations on the surrounding wall, and tap water is supplied to each household through branch pipes connected to the taps.

For example, as shown in FIG. 4, a water supply conduit 1 is formed by integrally providing a mortar lining 3 on the inner periphery of a ductile cast iron pipe 2, and a branch port 4 bored in the peripheral wall thereof has A water distribution faucet 5 is screwed on.

The faucet 5 has a hexagonal tightening part 6 at the middle part of the outer periphery.
a, a thread 6b is cut in the upper part, a tapered thread 6c is cut in the lower part, a female thread 7a is cut in the upper end of the inner periphery, and an enlarged diameter hole 7b is cut in the middle part. It consists of a plug main body 6 having an inlet 7 and a connecting tube 9 for connecting a branch conduit, which is watertightly attached to the upper end of the plug main body 6 via a packing 8.

The connecting tube 9 includes a body 11 having a female thread 10a cut on the inner periphery of a shaft hole 10 in the vertical direction, and a cap whose diameter is enlarged at the lower end of the body 11 and has a female thread 12a cut on the inner periphery. It consists of a section 12 and a discharge pipe section 13 protruding from the side wall of the body section 11.

Reference numeral 14 denotes a water stopper, in which a male screw 14a cut on the outer circumferential surface of the cylindrical main body is screwed into the female screw 10a of the shaft hole 10, and a hole having a square cross section in the center of the upper end surface. An engagement hole 14b is cut at the bottom.

[Problem that the invention seeks to solve]

In the conventional water distribution faucet 5 as described above, the diameters of the inlet port 7 and the discharge pipe portion 13 are generally small, which is inconvenient for connecting a branch pipe with a large flow rate. Also, during repair work, it could not be reused as is.

Therefore, the water distribution faucet 5 is left in the closed state on the conduit 1 and a new valve device with a large inlet is separately installed, but this requires drilling a hole in the conduit. Furthermore, increasing the number of branch ports increases the risk of water leakage.

In addition, the remaining water distribution valves will be removed when underground work is carried out to bury gas pipes or electric wires, etc.
There was a risk of damage or loosening due to impact caused by incorrect work, resulting in water leakage.

Furthermore, due to aging, the valve fasteners such as bolts or nuts may corrode and water may leak.

An object of the present invention is to provide a method for repairing a water distribution faucet on the peripheral wall of a fluid conduit, in which a part of the existing old type faucet is left and most of it is replaced with a new faucet. To provide a method for repairing a water distribution faucet in the peripheral wall of a fluid conduit, in which the inner diameter of the pipe is expanded by drilling an enlarged diameter hole at the inlet of the remaining old type water distribution faucet. In addition,
When installing the valve device, repair work can be performed without stopping the flow of fluid in the conduit.
An object of the present invention is to provide a method for repairing a water distribution faucet on a peripheral wall of a fluid conduit.

[Means for solving problems]

The present invention provides a water-tight closure of the faucet body by screwing a water shutoff piece of the faucet fitted into a branch port drilled in the peripheral wall of a conduit onto the faucet body of the faucet, and then The connecting cylinder for connecting the branch conduit attached to the main body is removed from the stopper main body, and then a valve device including a valve body that can be opened and closed in a valve box that can communicate with the branch port is watertightly attached to the stopper main body, and A piece rotating rod having an engaging portion capable of engaging with a water stopper is attached to the free end of the valve box of the valve device so as to be able to move forward and backward, and after opening the valve device, the piece rotating rod is moved forward. , a method for repairing a water distribution faucet on the peripheral wall of a fluid conduit, which is characterized by engaging an engaging part at the tip with a water shutoff piece and removing the water shutoff piece from the body of the faucet; By screwing the water shutoff piece of the water distribution faucet fitted into the branch opening into the faucet main body of the water faucet, the faucet body is closed watertight, and the conduit conduit for branching is attached to the faucet body of the water faucet. Next, a valve device having an openable and closable valve body in a valve box that can communicate with the branch port is watertightly attached to the stopper body, and the free end of the valve box in the valve device is removed. A piece rotating rod having an engaging part capable of engaging with the water shutoff piece is attached so as to be movable back and forth, and after opening the valve device, the piece rotating rod is moved forward and the engaging part at the tip thereof is moved forward and backward. After engaging the water stop piece, removing the water stop piece from the stopper body, and then closing the valve device,
Remove the piece rotating rod from the free end of the valve body, then attach a drilling device equipped with a drill to the free end of the valve body in a watertight manner, open the valve body, and insert a hole with a diameter larger than the diameter of the valve body into the inlet of the valve body. A method for repairing a water distribution faucet in a peripheral wall of a fluid conduit, the method comprising drilling an enlarged diameter hole in the peripheral wall of a fluid conduit.

〔Example〕

Hereinafter, the present invention will be explained in detail based on a first embodiment shown in FIGS. 1 to 5.

First, as shown in FIG. 4, in a state where the old type water distribution faucet 5 is attached to the conduit 1 as described above, in order to rotate the water stop piece 14 of the water distribution faucet 5, an imaginary line is drawn. After engaging the engaging portion 15a at the tip of the piece rotating rod 15 shown with the engaging hole 14b, it is rotated to connect the water stopper piece 14 to the female thread 7a of the stopper body 6.
The inlet port 7 is closed watertightly.

Next, remove the connecting tube 9 from the stopper body 6, and remove the fifth
As shown in the figure, only the stopper body 6 to which the water stopper piece 14 is attached remains on the conduit 1.

Next, as shown in FIGS. 1 to 3, a new saddle-shaped valve device 16 is attached to the outer periphery of the conduit 1 so as to cover the plug body 6 in a watertight manner.

The valve device 16 has two discharge ports 1 at the top and the side.
A valve body 19 that opens on three sides is housed in a valve body 16a having valve bodies 7 and 18, and a saddle-shaped substrate 21 is fixed to an inlet 20 provided on the lower surface of the valve body 16a. Arc-shaped arms 21a and 21b along the outer periphery of the conduit 1 are connected on both sides of the conduit 1.

A locking pin 22 parallel to the axis of the conduit 1 is connected to the free end of one arm 21a.
A protruding piece 23 that protrudes in the radial direction is connected to the free end of the other arm 21b.

24 is a band consisting of a semicircular strip,
It is in contact with the outer periphery of the lower half of the conduit 1, and at one end,
A pair of arc-shaped locking pieces 24 are rotatably locked to both ends of the locking pin 22 in the axial direction, and
The head of the bolt 25 is rotatably secured to the other end 24b.

As shown in FIG. 3, the bolt 25 is
3 and tightening the nut 26, the valve device 16 is attached to the outer periphery of the conduit 1.
At this time, by fitting the packing 27 into the concave hole 21c on the bottom surface of the substrate 21, watertightness with respect to the outer peripheral surface of the conduit 1 is maintained.

Reference numeral 28 shown in FIG. 3 is a piece rotating rod, which is fitted into a base 29 that is screwed into the discharge port 17 of the valve device 16 in a watertight manner.

An engaging portion 30a that can engage with the water stopper piece 14 is connected to the lower end of the piece rotating rod 28, and the upper end 3
A ratchet spanner 31 is attached to 0b.

Turn the operating rod 19a for rotating the valve body 19 to open the valve body 19, lower the engagement portion 30a of the piece rotation rod 28 to engage it with the engagement hole 14b of the water stop piece 14, and then use the ratchet spanner. Turn 31, water stop piece 1
4 is pulled out from the stopper body 6, the water stopper 14 is pushed out together with water by water pressure through the inside of the valve body 19 and through the drain hose 32 connected to the side outlet 18.

Next, the piece rotating rod 28 is raised until it separates from the valve body 19, and then the valve body 19 is closed, and the piece rotating rod 28 is raised until it is separated from the valve body 19.
8 is removed, one of the discharge ports 17 and 18 is closed with a stopper (not shown), and a branch conduit is similarly connected to the other.

Thereby, the valve device 16 can be used as a new water distribution faucet.

Next, an example will be described in which it is desired to increase the effective inner diameter of a newly installed water faucet.

First, as in the case of the first embodiment, the water stop piece 14 of the water distribution faucet 5 fitted on the conduit 1 is screwed up to the faucet body 6 to close the faucet body 6 watertightly, and the connecting tube 9 from the stopper body 6.

Then, the valve device 16 is attached to the conduit 1 in a watertight manner,
After opening the valve device 16 using the piece rotation rod 15, the piece rotation rod 15 is moved forward to remove the water stopper piece 14 from the stopper body 6.

Next, the piece rotating rod 15 is raised and the valve body 19
The water stopper 14 is separated from the valve device 1 by water pressure.
It is discharged from the side of the valve body 19 of No. 6.

Next, the valve body 19 is closed, the piece rotating rod 15 is removed, and a hole-drilling device 33 (FIG. 6) is attached in its place to enlarge the diameter of the inlet port 7 of the plug body 6.

As shown in FIG.
A tubular main body 34 is screwed into the main body 34, and a female thread 35a is formed into a cylindrical shape with a top and is cut into the inner circumferential surface.
is screwed into a male thread 34b cut into the upper outer peripheral surface of the main body 34, and has a handle 35 on the outer periphery of the intermediate portion.
The spindle 36 is loosely fitted into the case 35, has an upper end that passes through the top surface of the case 35, and has a protruding upper end that is prevented from coming off by a collar 36a.

A ratchet spanner 37 is fixed to the upper end of the spindle 36, and the upper part of a drill 38 having a blade 38a at the lower end is screwed and fixed to the lower end of the spindle 36.

After opening the valve body 19, turn the handle 35b to align the drill 38 with the opening of the inlet 7 of the plug body 6, and while rotating the ratchet spanner 37,
By pushing down the case 35 with the handle 35b and cutting the inlet 7 with the drill 38, an enlarged diameter hole 39 (FIG. 7) is bored in the inlet 7 of the existing plug body 6.

Next, the drill is raised to discharge chips and the like from the discharge port 17, and then the valve body 19 is closed and the drilling device 33 is removed from the valve device 16.

As a result, as shown in FIG.
A valve device 16 is formed having the following.

Thereafter, a branch conduit is connected to one of the discharge ports 17 and 18.

〔Effect of the invention〕

According to the present invention, by using an old type water faucet,
Since a new valve device can be installed as is, the number of branch ports to be cut into the conduit does not increase. Therefore, the need for plugging work is reduced, water leakage accidents are prevented, and the risk of leakage from the conduit can be reduced.

In addition, since there is no need to drill a new branch port in the conduit, the position of the distribution faucet on the main water distribution pipe can be fixed, eliminating the need for large amounts of labor and expense for repair work or installing valve equipment. When expanding the diameter of the inlet of a faucet, the remaining portion of the existing faucet becomes a rust-proof core, increasing durability.

Furthermore, since the work can be carried out without stopping the flow of fluid in the pipes, for example, when repairing a water pipe, there is no need to cut off the water supply to unrelated households, reducing the impact of repair work on other households. Also, construction time can be shortened.

[Brief explanation of drawings]

1 to 5 are diagrams for explaining a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view showing a state in which a valve device is attached to a conduit, and FIG. Fig. 3 is a vertical cross-sectional view showing the installation state of the piece rotating rod, Fig. 4 is a partially cut-away longitudinal cross-sectional view of the existing water distribution faucet, and Fig. 5 is a vertical cross-sectional view of the existing water distribution faucet. FIG. 6 is a vertical cross-sectional view showing the plug body of the plug, FIG. 6 is a vertical cross-sectional view showing the mounting state of the perforation device in the second embodiment of the present invention, and FIG. 7 is a vertical cross-sectional view showing the valve device with an enlarged diameter. It is a diagram. 1... Conduit, 4... Branch port, 5... Water faucet, 6
...Bung body, 7...Inflow port, 8...Putting,
9... Connection tube, 10... Shaft hole, 11... Body, 1
2...Best part, 13...Discharge pipe part, 14...Water stop piece, 14a...Male thread, 14b...Engagement hole, 15
... Piece rotating rod, 16... Valve device, 16a... Valve box, 17, 18... Discharge port, 19... Valve body, 20
...Inflow port, 21...Substrate, 21a, 21b...
Arm, 22... Locking pin, 23... Projection piece, 24
... Band, 25 ... Bolt, 28 ... Piece rotating rod, 30 ... Core material, 31, 37 ... Ratchet spanner, 32 ... Branch conduit, 33 ... Drilling device, 34 ... Main body, 35 ... ...Case, 38...Drill.

Claims (1)

[Scope of Claims] 1. A water stop piece in a water distribution faucet fitted into a branch opening drilled in a peripheral wall of a conduit is screwed onto a faucet body in the faucet, thereby watertightly closing the faucet body; Next, the connecting tube for connecting the branch conduit attached to the tap body is removed from the tap body, and then a valve device including a valve body that can be opened and closed in a valve box that can communicate with the branch port is watertightly attached to the tap body. In addition, a piece rotating rod having an engaging portion capable of engaging with a water stop piece is attached to the free end of the valve box of the valve device so as to be able to move forward and backward, and after opening the valve device, the piece rotating rod is attached. A method for repairing a water distribution faucet on a peripheral wall of a fluid conduit, the method comprising moving the faucet forward to engage an engaging part at the tip with a water stop piece, and removing the water stop piece from the main body of the faucet. 2. By screwing the water stop piece of the water faucet fitted into the branch opening drilled into the peripheral wall of the conduit to the main body of the water faucet, the main body of the water faucet is closed off in a watertight manner,
The connecting tube for connecting the branch conduit attached to the faucet body of the water distribution faucet is removed from the faucet body, and then a valve device with an openable and closable valve body is placed in the faucet body in a watertight manner in the valve box that can communicate with the branch port. A bridge rotating rod equipped with an engaging portion capable of engaging with a water stop piece is attached to the free end of the valve box of the valve device so as to be movable forward and backward, and after opening the valve device, the bridge rotation rod is attached to the free end of the valve box of the valve device. The rod is moved forward, the engaging part at the tip thereof is engaged with the water cutoff piece, the water cutoff piece is removed from the stopper body, and then, after closing the valve device, the piece rotating rod is removed from the free end of the valve box. , then attach a drilling device equipped with a drill to the free end of the valve body in a watertight manner, open the valve body, and drill an enlarged hole with a larger diameter than the diameter of the inlet of the valve body. A method for repairing a water distribution faucet on a peripheral wall of a fluid conduit, characterized by: