JP6779447B2 - Piping test jig in water supply extraction construction - Google Patents

Description

The present invention relates to a piping test jig in water supply extraction construction, and can be easily and quickly attached to and detached from a water pressure test pump with a single touch, and one component is basically used for different valve connection diameters of different sizes. The purpose is to reduce the number of parts as much as possible and to store it compactly after use to eliminate the cause of damage.

Then, when connecting to a commercially available test pump when performing a pressure resistance test carried out during tap water supply extraction construction work, complicated differences such as screw type and size are unified to improve workability. Provides high accuracy in pressure resistance tests.

Generally, a commercially available water pressure test pump is used to test the water pressure of a water supply pipe branched from this type of water distribution pipe.

The above-mentioned water pressure test pump is a device for measuring whether the pressure resistance is sufficient and whether there is a leak when water supply work or water supply installation is performed. In each house, water supply is installed, but most of them are received from the water pipes from the municipalities of the municipalities, and construction work is done for that purpose. Once installed, it is necessary to check that it can be used correctly and that it has been installed without problems, and this test pump is used for that purpose. Water pressure is important for water, which changes the ability of water to be supplied to the home, so check if there is any problem. And if it is in an abnormal state, there is a possibility that a leak has occurred at the construction stage, so check it. After a leak occurs, further checks are made to confirm it after making corrections.

Conventionally, most of the test pumps used for pressure resistance test at the time of tap water supply extraction construction have a pressure resistance hose length of 1 m, and depending on the site situation, it may reach the object of pressure resistance test (test pipe). The reality is that it may not be there.

The connecting screw attached to the pressure-resistant hose is straight (hereinafter referred to as "PF"). The advantage of using PF is that it can be attached and detached without using sealing tape.

However, in the pressure resistance test at the time of tap water supply extraction construction work in recent years, it is necessary to solve the troublesomeness of removing the pressure resistant hose, the mounting bracket, etc. because the target object is generated each time during work. ..

Therefore, the length of the pressure-resistant hose of the test pump is set to about 2 m so that it can reach the object of the pressure-resistant test, and the attachment / detachment is made of a one-touch coupler type. Furthermore, during the pressure resistance test from the water supply water stopcock (hereinafter referred to as "A valve"), which is the object, the connection to the water supply screw (association screw) and the capital screw (also referred to as the gold gate screw) is to be connected with a coupler. The purpose is to develop a connection for a jig and a water stopcock (hereinafter referred to as "B valve") for HIVP and a connection for a water tap with a saddle (water tap).

Japanese Patent Application Laid-Open No. 2009-115570

The above-mentioned Patent Document 1 is a general water pressure test pump in this field, and has a structure in which one end of a pressure-resistant hose is connected to a water supply pipe to perform a piping test.

However, in the conventional connection method, the straight screw portion 1/4 (nibu) of the pressure resistant hose attached to the hydraulic test pump of Patent Document 1 is replaced with the taper screw 1/2 (yonbu) test meter bushing. The actual situation is that water supply contractors procure and connect each member to the screw.

Further, as described above, while many straight screws provided at the tip of the hydraulic pressure resistant hose 7 of Patent Document 1 are available, the member for connecting the straight screw portion and the taber screw portion is special and is procured. Because it is difficult to do so, there is a tendency for a contradiction to occur in which straight screws and taber screws are connected and piped.

Therefore, the present invention uses a one-touch coupler type that allows quick and easy attachment and detachment of the pressure-resistant hose of the test pump, and by setting the pressure-resistant hose to a conventional length of about 2 m, the object of the pressure-resistant test ( The purpose is to make it easily reachable to the tube under test).

The present invention provides to solve the conventional problems and to achieve the object of the invention.
The first aspect of the present invention is that in a piping test jig in water supply extraction construction, one end is connected to the water supply pipe on the way from the water distribution pipe to the water meter of the water supply pipe arranged. A water supply faucet with a straight female thread on the other end that is not connected, a bushing with a straight male thread and a tapered female thread that are screwed into the straight female thread of the water supply water stopcock, and the taper of the bushing. A coupler plug with a tapered male screw that is screwed into a female screw, and a socket for one-touch connection of the coupler plug on the water supply pipe side to the tip of a pressure-resistant hose set to a length of about 2 m are provided in the hydraulic test pump. ..

The second aspect of the present invention is to use a straight male screw, a hexagonal head bushing having a tapered female screw, and a tapered female screw of the bushing in a jig for a piping test in the water supply extraction work according to the first invention. A coupler plug consisting of a tapered male screw and a tapered tubular insertion part is screwed into the base.

Since the present invention has the above configuration, it has the following effects.
The piping test jig in water supply extraction construction has the following effects.
First, the attachment and detachment to and from the pump can be tightly connected with a one-touch operation.
Secondly, after use, it can be stored compactly and the cause of damage can be eliminated.
Thirdly, since the pressure resistant hose is about twice as long as the conventional one, it is possible to use the pump on a hill higher than the flat ground.
Fourth, the hose mounting bracket is a tapered screw, and the compatibility of the screw with the coupler is outstandingly good.
Fifth, the water supply sluice valve side connection screw is troublesome and one-touch connection to a standard screw called a water supply screw (also called an association screw) or a capital screw (also called a gold gate screw) without using multiple members. It is possible, and the whole is slimmed down, the connection effect is better, and the appearance of the connected state is also smart.

It is a schematic front view which shows the system of the water supply pipe which branches from a water distribution pipe to a water meter. It is an exploded front view of the coupler of the water supply water stopcock, the pump for water pressure test, and the pressure resistant hose of FIG. It is an exploded front view of a bushing and a plug which become a coupler. It is an assembly drawing of the water supply water stop valve of FIG. It is an enlarged front view of the water stop valve of FIG. It is a front view of a diversion faucet with a saddle.

Next, to explain the embodiment of the present invention, a diversion faucet with a saddle is placed at a predetermined position in the underground water distribution pipe, and the diversion faucet is connected to a water meter that does not reach the faucet of the house. Then, a water stopcock, a water supply water stopcock, a water meter, etc. are installed in the middle of the water supply pipe to complete the process.

In the above-mentioned pre-completion laying work, the present invention attaches a bushing having a straight male screw and a tapered female screw to a straight female screw on the opposite side (water meter side) of the water supply stop faucet via the male screw. , Connect the plug of this bushing to the socket at the tip of the pressure resistant hose of the water pressure test pump with one touch, and test the pressure resistance and water leakage of the water supply water stopcock and the water supply water stopcock before reaching the faucet in the house.

Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 1 is a water pipe for water supply, and 2 is a water pipe that branches from the water pipe and is laid up to a water meter 6. The water supply pipe between the water meter 6 and the faucet 7 that serves as a water stopcock for the house is removed. 3 is a diversion faucet with a saddle provided at the branch point of the water distribution pipe 1, 4 is a water faucet that is placed and connected in the middle of the water supply pipe 2, and 5 is a water supply faucet that is also placed and connected in the middle of the water supply pipe 2. Shown.

2 and 3, 8 is a commercially available hydraulic test pump is provided with a pressure hose connecting socket 13 at the distal end of the pressure pipe 8 ₂ that the pressure gauge ₈₁ is attached to the test pump 8.
9 is a pressure hose in length and allowed the order of 2m, has a straight male thread 10 ₁ and the tapered female thread 10 ₂ provided at its distal end, tapered male thread made of tapered cylindrical insertion portion 11 ₂ coupler 11 has a tapered male thread 11 ₁ to the base, which has a structure to be screwed into a tapered female thread 10 ₂ meter bushing 10 of hexagonal head.

4, screwing the meter bushing 10 which at one end has a straight male thread 10 ₁ to diameter 5 ₂ at the other end of the straight female thread of water stop cock 5 which is attached to the water supply pipe 2. If the outer diameter of the straight male screw of the meter bushing 10 is different from the diameter of the water supply stop valve 4, the second meter bushing 10 ′ and the third meter bushing 10 ′ having the straight screw 10 ₁ ′ and the straight female screw 10 ₂ ′ are provided. It is configured to be screwed and adjusted via the meter bushing 10 ″ of the above. There are two types of screws, called water tap screws (also referred to as association screws) and gold gate screws, in the diameter.

5, screwing the coupler with plug coupling 14 with one end having a straight female thread 14 ₂ straight male thread 4 ₁ of the other end of the stop cock 4 attached to the water supply pipe 2. The base of the coupler plug 11 shown in FIG. 3 is screwed onto the plane of the coupling.

6, screwing the straight female thread 14 _second coupling 14 shown in FIG. 6 straight male thread 3 ₁ at the head of the saddle with diversion plug 3 installed in the water supply pipe 1. Then, the base portion of the plug 11 shown in FIG. 3 is screwed onto the flat surface of the coupling 14.

[Test example 1 using a hydraulic test pump]
In Figure 4 above, mounting the plug with bushing 10 having a straight female thread 5 ₂ the tapered male thread 11 ₁ and the tapered female thread 10 _second water stop cock 5 via the male screw 11 _1, plug the bushing 11 is connected to the coupler socket 13 at the tip of the pressure resistant hose of the water pressure test pump with one touch, and the pressure resistance and water leakage of the water supply pipe 2 between the water supply water stopcock 5 and the water stopcock 4 are tested.

In the above bushing 10, tap water is supplied by superimposing a second bushing 10 ′ having a tapered male screw 11 ₁ ′ having a female screw 10 ′ screwed on a taber female screw portion 10 ₂ having a relatively gentle angle θ. It shows what is screwed into the straight female screw 5 ₂ of the stop cock 5.

Then, there is a case where a straight female thread 5 ₂ (13-20-25-30-40 each size) diameter water supply stop cock 5 is different, tapered even use those tailored to the diameter even that case One type of coupler plug 11 with a male screw can always be applied, and the number of parts used can be saved.

[Test example 2 using a hydraulic test pump]
5, combined butterfly female screw 14 _second plug 11 with coupler straight male thread 4 ₁ stop cock 4, insert a one-touch coupler plug 11 on the tip socket 13 of the pressure hose 9 hydraulic test pump 8 , Test the pressure resistance and water leakage in the pipe installation work from the water stop valve 4 to the water supply pipe 2.

In the above case, the straight male screw 4 _{1 of the} water stopcock 4 (water screw: each size of 20-25-30-40-50) may have a different diameter, but even in that case, the coupling 14 is the same. Even if different ones are used according to the diameter, one kind of coupler plug 11 with a tapered male screw can always be applied, and the number of parts used can be saved.

[Test example 3 using a hydraulic test pump]
Also, screwed covered with a female screw 14 _second coupling 14 at the top of the straight male thread 3 ₁ saddle with diversion plug 3 in FIG. 6, the plug 11 of the pressure hose 9 hydraulic test pump 8 previous Insert it into the socket 13 with one touch. In this state, since it is a test whether the saddle-equipped faucet 3 is correctly installed in the water distribution pipe 1, the saddle faucet 3 has a valve to the water supply pipe 2 closed.

In the above case, the diameter of the straight male screw 3 ₁ (water screw: each size of 20-25-30-40-50) may be different, but even in that case, the coupling 14 is different according to the diameter. Even if one is used, one type of coupler plug 11 with a tapered male screw can always be applied, and the number of parts used can be saved.

1 ... Water distribution pipe 2 ... Water supply pipe 3 ... Water tap with saddle 4 ... Water stopcock 5 ... Water supply water stopcock 6 ... Water meter 7 ... Faucet 8 ... Water pressure test pump 9 ... Pressure resistant hose 10 ... Coupler bushing 11 ... Coupler plug 12 ... (missing number)
13 ... Coupler socket with tapered female screw 14 ... Coupling with coupler plug

Claims (2)

On the way from the water distribution pipe (1) to the water meter (6) of the water supply pipe (2) that is branched and arranged, one end is connected to the water supply pipe (2) and the other end is not connected to anything. in a water water stop cock provided with a straight female thread (5 ₂₎ (5), straight male thread (10 ₁₎ to be screwed to the straight female thread (5 ₂₎ of the tap water supply stop cock (5) and a bushing (10) having a tapered female screw (10 _2), and a coupler plug having a tapered male thread (11 ₁₎ to be screwed into a tapered female screw (10 ₂₎ of the bushing (11), hydrostatic test pump (8 ) Is provided with a socket (13) for one-touch connection of a coupler plug (11) on the water supply pipe side at the tip of a pressure-resistant hose set to a length of about 2 m, which is a piping test jig for water supply extraction work. Straight male thread (10 _1), a hexagonal head of the bushing having a tapered female screw (10 ₂₎ (10), the tapered female screw (10 ₂₎ of the bushing (10), tapered to the base male screw ( 11 ₁₎ and the tapered cylindrical insertion portion (11 ₂₎ coupler plug (11) jigs pipe test in water extraction installation according to claim 1, characterized in that screwing consisting.