JPH08326980A - Coupling for connecting gas meter - Google Patents

Abstract

PURPOSE: To improve the workability of a gas meter connecting piping, and the appearance, by providing a coupling main body having a partition wall to partition to the primary side flow passage and the secondary flow passage at the inside of a box form body whose lower side is opened, and providing an inlet pipe connecting hole and an outlet pipe connecting hole to a lower side lid to seal and fix the lower side opening of the coupling main body. CONSTITUTION: A coupling main body 20 is formed in a rectangular box form having an opening hole at the lower side, and its inner side is partitioned to the left side and the right side, into the primary side flow passage 22 and the secondary flow passage 23 through a partition wall 21. The lower side of the coupling main body 20 is blocked by a lower side lid 24 through a packing, and fixed by a bolt. The lower side lid 24 has a flow-in port A connecting a rising pipe 33 to the primary side flow passage 22 side of the coupling main body, and an inlet pipe connecting hole C to connect to the inlet pipe side at the upper side of a gas meter 30, and it has an outlet pipe connecting hole D connecting to the outlet pipe side connecting hole 32 at the upper side of the gas meter 30; and a flow out hole B connecting a hanging pipe 34; at the secondary side flow passage 23 side. And a ball valve 40 operated form the outer side is installed to the flow-in port A.

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 rising pipe 1 and the falling pipe 2 support the gas meter 10, and there are many connecting parts until the gas meter 10 is connected, so many joints are required, and 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]

Means for Solving the Problems The gist of the present invention is to have a partition wall for blocking a primary side flow path and a secondary side flow path inside a box-shaped interior with an open bottom surface, and to fix the building to the outer surface. It consists of a joint body with a mounting part and a bottom lid that seals and fixes the bottom opening of the joint body.The bottom lid communicates with the primary side flow path of the joint body and is connected to the supply source primary side pipe. An inlet pipe connecting port that connects to the inlet and the inflow pipe above the gas meter, an outlet that connects to the secondary pipe of the supply destination that communicates with the secondary side flow passage of the fitting body, and an outlet pipe that connects to the outlet pipe above the gas meter. A gas meter connecting joint, characterized in that a connection port is provided. In addition, a valve that opens and closes between the inlet connected to the supply source primary side pipe and the inlet pipe connecting port connected to the inlet pipe at the top of the gas meter is provided in the primary side flow passage, and the valve operation handle is It is a gas meter connection joint provided on the outside. Further, the valve provided in the primary-side flow passage is a gas meter connecting joint in which the valve body is sealed with a fireproof gasket and a rotation restricting stopper mechanism is provided in the handle portion.

[0005]

Since the present invention has the above structure, the joint body for gas meter connection at the upper ends of the supply source primary side pipe and the supply destination secondary side pipe is directly fixed to the building such as the outer wall of the building. 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 flexible pipes made of stainless steel or the like having flexibility that allows easy bending of the pipes can be used. . Therefore, the workability of the pipe is significantly improved. Moreover, since the gas meter is directly connected to the joint body, the mounting strength of the gas meter is increased. Further, it is not necessary to fix the conventional start-up / fall-down pipe to the building halfway through the use of support fittings. Furthermore, each connection port on the bottom surface of the joint is provided with a size interval according to the shape and size of the gas meter, so that the gas meter can be attached, so there is less front and rear depth space and left and right width space, and the overall gas meter The space for mounting is greatly reduced.

Further, since the gas meter can be directly connected, it is not necessary to connect a large number of conventional elbows and universal joints to perform centering piping, and the workability of piping is greatly improved. Also, beautiful piping can be done 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. Furthermore, since it is not necessary to attach a valve such as a cock to a part of the riser pipe, there is no problem of sealability and an increase in the number of connecting portions due to attaching the valve. Furthermore, the valve provided inside the joint body can be opened and closed by operating the handle provided outside the joint body, so it has good operability, has a handle rotation restriction mechanism, and has a seal packing with the valve body that is fire resistant. Since it has good operability, it can open and close the valve safely and securely.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a gas meter connecting joint according to a first embodiment of the present invention. In FIGS. 1 to 3, the joint body 20 is generally shaped like a rectangular box having an opening at the bottom, and a partition wall 21 is provided at the center of the inside of the joint body 20. A passage 22 is provided on the right side of the passage 22.

The lower portion of the joint body 20 is sealed at its periphery with packing, sealed with a lower lid 24 and closed with bolts. The lower surface lid 24 is provided with an inlet port A connected to the riser pipe 33 and an inlet pipe connection port C connected to the upper inlet pipe side connection port 31 of the gas meter 30 on the primary side flow path 22 side of the joint body, An outlet pipe connection port D connected to the upper outlet pipe side connection port 32 of the gas meter 30 and an outlet port B connected to the falling pipe 34 are provided on the secondary side flow path 23 side. These four connection ports A,
B, C, and D are provided with a space and a connecting portion that can be connected to each other, and the inflow port A and the outflow port B are the primary side rising pipe 33.
And the connection fittings 35 and 36 that can be connected to the stainless flexible pipe of the secondary side fall pipe 34, and the connection ports C and D are connection joints 37 that can be connected to the inlet pipe 31 and the outlet pipe 32 of the gas meter,
38, and has a size corresponding to the width of the gas meter 30 and the distance between the inlet pipe 31 and the outlet pipe 32.

A ball valve 40 is mounted in the primary side flow passage, a handle 41 of the ball valve 40 is provided outside the end portion of the joint, and an inlet A in the primary side flow passage 22 and a gas meter enter from the outside. The space between the pipe connection ports C can be opened and closed. It is used when installing or repairing the gas appliance of the secondary supply pipe by opening and closing the ball valve 40. A mounting flange 25 for fixing to the building is provided on the upper part of the rear surface of the joint body 20 and an appropriate number of mounting screw holes 26 are provided as a mounting portion to the building or the like. The joint body 20 is directly fixed to the building by this mounting portion.

FIGS. 4 and 5 show a gas meter connecting joint showing a second embodiment of the present invention. In this embodiment, the handle 41 of the ball valve 40 that opens and closes between the inflow port A in the primary side flow path 22 and the inlet pipe side connection port C of the gas meter 30 is provided on the front side of the joint body 20, and the ball valve The opening / closing operation of 40 can be performed from the front. Further, an outlet E communicating with the secondary flow path 23 is also provided on the upper part of the joint body 20, and two outlets B are additionally provided. By providing the outlet E also on the upper side, for example, it is normally closed with a plug, and when necessary, the plug is removed and used as an inspection pressure port, or a water heater or the like is installed near the upper part of the gas meter 30. In some cases, the secondary side pipe can be taken out from the upper outlet E to be connected. Still further, an outflow port can be additionally provided at the upper part or the lower part of the joint body.

FIG. 6 is an enlarged sectional view of the valve portion showing the ball valve 40 of the embodiment of the present invention. Primary side flow path 2 of joint body 20
A valve main body 60 fixed to the lower surface lid 24 is provided in the inside 2, and a valve body presser 62 with a connection port with the rising pipe 33 is connected to the valve main body 60 and also serves as an inlet A of the joint main body. A ball valve body 63 is mounted in this, and is sealed by a fireproof gasket 64 containing expanded black smoke. Since the fireproof gasket 64 expands when heated, the sealability with the valve body 63 is maintained even in the event of a fire. The valve body 63 is
The ball valve body 63 is rotated by rotating the handle 67 provided in the front of the joint body through the valve rod 65 mounted in the body 60 and the handle adapter 66 mounted in the joint body 20.
Rotates to open and close the valve.

Reference numeral 69 is a rotation restricting stopper for the handle 67, a restricting end portion 74 at one end is fitted into a stop hole 70 provided at a 90 degree opening / closing position of the joint body, and the other end pressing portion 75 projects from the surface of the handle 67. ing. A hole 72 into which the handle boss 71 is inserted is provided in the central portion, and a fulcrum fulcrum 73 of a stopper that abuts the surface of the handle adapter 66 is provided on the side portion of the hole. The stopper 69 is constantly pressed against the handle adapter 66 side by the spring 74. By manually pressing the pressing portion 75 of the stopper 69 projecting from the handle surface, the restricting end portion 74 is disengaged from the stop hole 70 and the handle 67 can be rotated with the fulcrum projection 73 as a base point. Next, release the pressing part 75, turn the handle and rotate 90 degrees,
The restriction end 74 is fitted in the stop hole (not shown) provided in the 90 degree direction of the other joint body, and the 90 degree rotation of the handle is stopped and the positioning is accurately performed.

Thus, the valve 40 provided in the joint body 20
Since the handle 67 can be operated from the outside of the joint body, the operability is good. Moreover, since the seal with the ball valve body 63 uses the fireproof gasket 64 containing expanded black smoke, the seal safety at the time of fire is excellent. Furthermore, since a rotation restriction stopper mechanism is provided on the handle portion, reliable opening and closing operation can be performed, and careless rotation of the handle can be prevented, resulting in excellent safety.

7 to 9 show a gas meter connecting joint showing a second embodiment of the present invention. In this embodiment, the inlet A and the outlet B are provided on the fixed side of the lower lid 54 for sealing the lower part of the joint body 50 to the building so that the overall width of the gas meter pipe is minimized. The raising pipe 33 and the secondary side falling pipe 34 are connected, and the gas meter 3 is provided in front of this.
An inlet pipe connection port C and an outlet pipe connection port D, which can be attached by connecting 0, are provided. Other configurations are substantially the same as those in the above-mentioned embodiment, and depending on the situation of the building and the situation of the installation space, the first
The embodiment and the second embodiment can be selectively used.

[0015]

As described above, in the gas meter connecting joint of the present invention, the mounting portion of the joint body can be fixed to the building, so that the gas meter 30 can be stably supported and fixed. Moreover, since the gas meter is stably fixed by fixing the joint to the building, the rise and fall pipes 33, 34 on the primary side and the secondary side are fixed.
As the material, a flexible stainless steel pipe having flexibility and excellent workability can be used. Further, since the 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 there are few connecting parts of the pipe and the valve 40 is installed inside the joint main body 50 and can be operated from the outside, the workability of the gas meter connecting pipe is good, the appearance is excellent, and the operability of the valve is also good. Further, the gas meter 30 is fixed close to the outer wall of the building, the amount of protrusion in the front and rear is small, and the width of the left and right pipes is always fixed to a short width. The space increases.

As described above, the gas meter connection joint of the present invention improves the pipe workability of gas meter installation, installation strength and aesthetics after installation, greatly reduces installation space, increases living space, and improves valve operation safety. The sex is also good. In addition, the safety with respect to sealing property and fire resistance is increased, and it has an industrially excellent effect that can cope with an unexpected situation.

[Brief description of drawings]

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

FIG. 2 is a side view of FIG.

3 is a plan view of the gas meter connection joint of FIG. 1. FIG.

FIG. 4 is a front view of a gas meter connecting joint showing a second embodiment of the present invention.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a side enlarged cross-sectional view showing the structure of the valve 40.

FIG. 7 is a partial front sectional view showing a second embodiment of the present invention.

FIG. 8 is a side view showing a state in which the gas meter of the second embodiment is connected.

9 is a plan view of the gas meter connection joint of FIG. 7. FIG.

FIG. 10 is a front view of a state in which the gas meter is connected to a conventional gas meter.

FIG. 11 is a side view showing a state in which the gas meter is connected to a conventional gas meter.

[Explanation of symbols]

20, 50 Joint body 21, 51 Partition wall 22 Primary side flow path 23 Secondary side flow path 24, 54 Lower surface lid 25, 55 Flange 26 Screw hole 30 Gas meter 31 Gas meter inlet pipe side connection port 32 Gas meter outlet side connection Port 33 Start-up pipe 34 Falling pipe 35, 36 Connection joint with flexible pipe 37, 38 Connection joint with gas meter 40 Ball valve 41 Handle 60 Valve body 62 Valve body retainer with connection port 63 Ball valve body 64 Fireproof gasket 65 valve Rod 66 Handle adapter 67 Handle 69 Handle rotation restriction stopper 70 Stop hole 71 Handle boss 72 Hole 73 Stopper 69 fulcrum protrusion A Inlet B, E Outlet C Inlet pipe connection port D Outlet port connection port

Claims (3)

[Claims] 1. A joint body having a box-shaped interior having an open lower surface, a partition wall that blocks the primary side flow passage and the secondary side flow passage, and an outer surface having a mounting portion for fixing to a building, and the joint body. It consists of a lower lid that seals and fixes the lower opening of the main body, and connects to the inlet that connects to the primary pipe of the supply source and the inflow pipe above the gas meter that communicates with the primary flow path of the fitting main body. An inlet pipe connection port, an outlet port connected to the secondary pipe of the supply destination, which communicates with the secondary side flow passage of the joint body, and an outlet pipe connection port connected to the outlet pipe of the upper part of the gas meter are provided. A fitting for connecting a gas meter. 2. A valve operating handle is provided in the primary side flow passage, the valve being for opening and closing between an inlet connected to a supply source primary side pipe and an inlet pipe connecting port connected to an inflow pipe in the upper part of the gas meter. The gas meter connecting joint according to claim 1, wherein the joint is provided outside the joint main body. 3. The valve provided in the primary side flow passage is characterized in that the valve body is sealed with a refractory gasket, and the handle portion is provided with a rotation restricting stopper mechanism. Gas meter connection fittings.