JPH09317975A - Gas meter connecting joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To directly fix a joint body to a building by providing a fixation plate having a fixation part which seals a rear side opening of a joint body and is operated for fixing it to a building. SOLUTION: A joint body 20 is a rectangular box on whose rear surface an opening is formed. A partition wall 21 a formed on a center portion thereinside. A primary flow passage 22 is arranged on a left side, while a secondary flow passage 23 is arranged on a right side. The rear side opening of the joint body 20 is sealed by packing and a fixed plate 24, and blocked by a bolt 25. The fixed plate 24 is extended around the joint body 20 to form fixer to a building. An inflow port A connected to a primary standing pipe 33 and an inlet pipe connection port C connected to an inlet pipe side connection port 31 are formed on the primary side flow passage 22. An outlet pipe connection port D connected to an upper outlet side connection port 32 of a gas member 30 and an outflow port B connected to a secondary side descanding pipe 34 are formed on the side of the secondary side flow passage 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint for connecting a gas meter when a city gas is piped from a pipe of a supply source to a building of a supply destination.

[0002]

2. Description of the Related Art Various methods are used for piping around a gas meter, one example of which is shown in FIGS. In this conventional example, a primary side steel pipe 1 that has been raised from an embedded pipe of a supply source and a secondary side downfall steel pipe 2 that is piped in a building of a supply destination
Is fixed to the outer wall 3 of the building or the reinforcing block 4 of the buried portion with the support fittings 5, and the main stopper 6 is piped in the middle of the primary rise pipe 1, and the steel pipes 1 and 2 on the primary and secondary sides are connected. A male and female elbow joint 7, an elbow joint 8, and a universal joint 9 are combined in the upper part, and connected to an inlet 11 and an outlet 12 at the upper part of the gas meter 10 at the front side of the rising pipe 1 and the falling pipe 2 to suspend the gas meter 10. To fix it.

[0003]

SUMMARY OF THE INVENTION The gas meter 10 described above.
In the surrounding pipes, the riser pipe 1 and the fall pipe 2 support the gas meter 10, and there are many connecting parts until connecting with the gas meter 10 and many joints are required, so that the centering pipe is neat in appearance. It required skillful skills. In addition, the projecting length L from the building outdoor wall 3 to the front of the gas meter 10 and the length M between the left and right rise and fall pipes 1 and 2 are large due to the large number of connecting portions and the connection of the main plug 6, and the overall length. As it needed a lot of installation space.
Particularly in the case of a general house, there are many cases where the width M and the protruding length L of the installation space are not so large, which narrows the living space and makes piping work difficult. In view of the above problems, the present invention improves the workability and aesthetics of the gas meter connection pipe, reduces the gas meter installation space, increases the fixing strength of the gas meter, does not damage or leak from the connection portion, and is for highly safe gas meter connection. A joint is provided.

[0004]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a joint body having a partition wall that blocks a primary side flow passage and a secondary side flow passage in a box-shaped interior with an open rear surface, and the rear surface of the joint main body is opened. A fixing plate having a fixing portion for sealing the portion and fixing it to the building, and connected to the primary side flow path of the joint body, the inflow connection port connected to the source primary side pipe, and the inflow pipe above the gas meter. Provided with an inlet pipe connection port, in the secondary side flow path of the joint body,
A joint for gas meter connection, characterized in that an outflow connection port connected to a supply destination secondary side pipe and an outlet pipe connection port connected to an outflow pipe in the upper part of the gas meter are provided. Further, the gas meter connection joint is characterized in that a plurality of outflow connection ports of the joint body are provided so as to communicate with the secondary side flow passage. The inlet connection port and the outlet connection port are provided on the lower surface of the joint body, and the inlet pipe connection port and the outlet pipe connection port are provided on the front surface of the joint body. Also,
The gas meter connecting joint is characterized in that a pressure detecting port is provided in the secondary side flow path of the joint body. Further, the gas meter connection joint is characterized in that the inlet pipe connection port and the outlet pipe connection port of the joint body are connected to a gas meter through an elbow joint. Further, the gas meter connection joint is characterized in that the inlet connection port is connected to a primary side pipe through a plug for opening and closing a flow path. Further, the gas meter connection joint is characterized in that the inflow connection port is provided with an insulation mechanism or an insulation joint that electrically insulates from the pipe and is connected to the primary side pipe.

[0005]

Since the present invention has the above-mentioned structure, the rear opening portion of the joint body for gas meter connection is sealed by the fixing plate and directly fixed to the building such as the outer wall of the building. The supply source primary side pipe and the supply destination secondary side pipe are connected to the joint body. For this reason, it is not necessary to use steel pipes for the rising and falling pipes on the primary side and the secondary side as in the conventional case, and metal bellows pipes such as stainless steel bellows pipes that are flexible and have flexible flexibility can be easily used. It can be used and the workability of piping is greatly improved.
Moreover, since the gas meter is connected to the joint body fixed to the building, the mounting strength of the gas meter is increased. Further, the gas meter can be fixed without fixing it to the building by using a supporting fitting in the middle of the conventional start-up / fall-down pipe. Furthermore, since each connection port of the joint body can be installed with a size interval according to the shape and size of the gas meter, and the gas meter can be installed, the front and rear depth space and the left and right width spaces are smaller than before, and the gas meter can be installed as a whole. The space for is greatly reduced.

Further, since the gas meter is directly connected to the joint body, there is no need to connect many conventional elbows and universal joints to perform centering piping, and the workability of piping is greatly improved. For this reason, beautiful piping can be performed without requiring skill. Further, since a valve for opening and closing between the primary inlet and the gas meter-containing pipe connecting port is mounted in the joint body, the primary pipe can be directly connected to the inlet of the joint, and the appearance can be neatly piped.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a joint for connecting a gas meter according to an embodiment of the present invention. 1 to 3, the joint body 2
0 has a rectangular box shape with an opening on the back as a whole, a partition wall 21 is provided in the center of the inside, and a primary side flow passage 22 is provided on the left side and a secondary side flow passage 23 is provided on the right side. It is provided.

The open rear surface of the joint body 20 is sealed with packing around the periphery, sealed with a fixing plate 24, and closed with bolts 25. The fixing plate 24 extends around the joint body 20 to form a fixing portion with the building. An inlet A connected to the primary riser pipe 33 and an inlet pipe connection C connected to the upper inlet pipe side connection port 31 of the gas meter 30 are provided on the primary side flow path 22 side of the joint body, and the secondary side On the side of the flow path 23, there are provided two outlet pipe connection ports D connected to the upper outlet pipe side connection port 32 of the gas meter 30 and outlet ports B connected to the secondary side downcomer pipe 34.

The connection ports A, B, C and D are provided at intervals and connection portions where they can be connected to their respective counterparts, and the inflow port A and the outflow port B are provided with a primary side rising pipe 33 on the lower surface side of the joint body. A joint elbow 3 that has a joint part that can be connected to the flexible pipe made of stainless steel of the secondary side downcomer 34, and the connection ports C and D can be connected to the inlet pipe 31 and the outlet pipe 32 of the gas meter on the front side of the joint body.
7 and 38, the width dimension of the gas meter 30 and the inlet pipe 3
It is provided with a size corresponding to the distance between 1 and the outlet pipe 32.

A plug 40 is provided at the inlet A of the primary side flow passage 22.
Is connected to the primary side pipe 33, and the gas meter 30
The flow path to is used when installing or repairing the gas appliance of the secondary supply destination by opening and closing the plug 40. The back surface fixing plate 24 of the joint main body 20 is provided with a mounting portion for fixing to the building, and a proper number of mounting screw holes 26 are provided to serve as a fixing portion to the outer wall of the building. The joint plate 20 is directly fixed to the building by the fixing plate 24.

The outlet B communicating with the secondary side flow passage 23 may be provided in the upper portion or the side portion of the joint body 20. For example, it is usually closed with a plug and the plug is removed when necessary. When it is used as the inspection pressure port E or when a water heater or the like is installed near the upper part of the gas meter 30, the secondary side pipe may be taken out from the upper outlet B to allow piping. Still further, an outflow port can be additionally provided at the upper part or the lower part of the joint body. In addition, an insulating joint is connected to the inlet A of the joint main body 20, or the connecting portion of the inlet A is made into an insulating structure to keep the primary side rising pipe 33 and the joint main body 20 electrically insulated, It is possible to prevent the macrocell corrosion from occurring in the gas meter 30 and the secondary side fall pipe 34.

In this embodiment, an inlet A and an outlet B are provided on the side where the joint body is fixed to the building, the primary riser pipe 33 and the secondary fall pipe 34 are connected, and the gas meter 30 is located in front of this. Since there is an inlet pipe connection port C and an outlet pipe connection port D that can be connected and installed, the fixing space to the building can be small, and depending on the situation of the building, the secondary side pipe can be installed at the side as well as the lower part. It is convenient because the pipes can be taken out from the outlets B to E at the upper part or the upper part.

[0013]

As described above, in the gas meter connecting joint of the present invention, the joint body can be directly fixed to the building for piping, so that the gas meter 30 can be stably supported and fixed. Further, since the gas meter is stably fixed, it is possible to use a flexible stainless steel flexible pipe having excellent workability as the rising and falling pipes 33, 34 on the primary side and the secondary side. Piping can be performed. Further gas meter 30
Is stably fixed, the connecting portion of the gas meter 30 is not loosened due to vibration or the like, and can be safely attached. Further, since the number of connecting parts of the pipe is small, the workability of the gas meter mounting pipe is good and the appearance is excellent. In addition, the gas meter 30 is laid on the outer wall of the building with a constant short width in the left and right pipe widths, and as a whole, the space for installing the gas meter pipe is significantly reduced and the living space is increased.

As described above, the joint for gas meter connection of the present invention improves the piping workability of the gas meter installation, the mounting strength and the aesthetic appearance after the installation, and the installation space is greatly reduced and the living space is increased. Further, since the number of connecting portions is small, the safety of the sealing property is increased, and it has an industrially excellent effect of being able to cope with an unexpected situation.

[Brief description of drawings]

FIG. 1 is a front view of a state in which a gas meter according to a first embodiment of the present invention is connected.

FIG. 2 is a side view of FIG.

FIG. 3 is a cross-sectional plan view of the gas meter connection joint of FIG.

FIG. 4 is a front view showing a state in which the gas meter is connected to a conventional gas meter.

FIG. 5 is a side view showing a state in which the gas meter is connected to a conventional gas meter.

[Explanation of symbols]

20 Joint Main Body 21 Partition Wall 22 Primary Side Flow Path 23 Secondary Side Flow Path 24 Fixing Plate 25 Bolt 26 Screw Hole 30 Gas Meter 31 Gas Meter Inlet Side Connection Port 32 Gas Meter Outlet Side Connection Port 33 Primary Side Start Up Pipe 34 Secondary side downcomer pipe 37, 38 Joint elbow 40 Open / close plug A Inlet port B Outlet port C Inlet pipe connection port D Outlet pipe connection port E Inspection pressure port

Claims (7)

[Claims] 1. A joint main body having a partition wall that blocks a primary side flow passage and a secondary side flow passage inside a box-shaped interior with an open rear surface, and a fixing for sealing the rear surface open portion of the joint main body and fixing it to a building. A fixed plate having a portion, the primary side flow path of the joint body, the inlet connection port for connecting to the supply source primary side pipe and the inlet pipe connection port for connecting to the inlet pipe of the gas meter are provided, the joint body In the secondary side flow path, a coupling for gas meter connection is provided with an outflow connection port connected to the supply destination secondary side pipe and an outlet pipe connection port connected to the outflow pipe in the upper part of the gas meter. 2. The joint for gas meter connection according to claim 1, wherein a plurality of outflow connection ports of the joint body are provided in communication with the secondary side flow passage. 3. The inflow connection port and the outflow connection port are provided on the lower surface of the joint body, and the inlet pipe connection port and the outlet pipe connection port are provided on the front surface of the joint body. Gas meter connection fittings. 4. The joint for gas meter connection according to claim 1, wherein a pressure detecting port is provided in the secondary side flow passage of the joint body. 5. The joint for gas meter connection according to claim 1, wherein the inlet pipe connection port and the outlet pipe connection port of the joint body are connected to a gas meter through an elbow joint. 6. The gas meter connecting joint according to claim 1, wherein the inlet connection port is connected to a primary side pipe through a plug that opens and closes a flow path. 7. The gas meter connection joint according to claim 1, wherein the inflow connection port is provided with an insulation mechanism or an insulation joint for electrically insulating the pipe from the inflow connection port and connected to the primary side pipe.