JP2002257611A - Unit for installing gas meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily install a gas meter in a narrow space where the distance (clearance) between a wall and the gas meter is set as short as possible in the case of installing the gas meter. SOLUTION: An inlet side gas pipe (a) and an outlet side gas pipe b disposed behind the gas meter A are formed a thin and rectangular shape. Thereby, a piping space between the gas meter A and the wall D behind the gas meter A can be made smaller in comparison with a circular gas pipe because of the thin shape (flat shape). As a result, the gas meter A can be easily installed in the narrow space. Accordingly, it is effective, in particular, in the case where the gas meter A is installed in a pipe shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas meter mounting unit for mounting a gas meter as close to a wall as possible.

[0002]

2. Description of the Related Art In the case of a gas meter, it is necessary to provide gas pipes on the gas inlet and outlet sides of the meter, and a general example thereof is shown in FIGS. 15A and 15B show an inlet gas pipe (steel pipe) 01 and an outlet gas pipe (steel pipe) 02.
In parallel, elbow 03, fitting 04,
The joint 06 of the pipe is formed downward by using the elbow 05, and the inlet base B and the outlet base C of the gas meter A are connected to the downwardly formed joint 06 by using the joint pipe 07 and the union nut 08, respectively. Then, the gas meter A is hung from the access pipe, and the gas meter A takes on the shape of the input pipe 01 and the output pipe 02 as is clear from FIGS. 15 (A) and 15 (B). A large piping space W is required between the inner wall and the rear wall D. FIG.
In (A) and (B), reference numeral 09 denotes a gas stopper (main stopper);
Is a test port member with an inspection hole plug 011.

In the case of such a mounting mode of the gas meter A, a large piping space W behind the gas meter A is provided.
Projecting the gas meter A, it may be difficult to install the gas meter A in a narrow space. For the purpose of avoiding this problem, Japanese Patent Application Laid-Open No. 11-83589 discloses an example of piping in which the gas pipes on the inlet and outlet sides are not located behind the gas meter but along the left and right sides of the gas meter. 3 and 11). However, in this piping example, no piping space is required behind the gas meter, but piping space is required on the left and right sides of the gas meter.

[0004]

As described above, since the gas pipe occupies a large space in the inlet and outlet pipes of the conventional gas meter, the size of the gas meter is reduced in order to save space. Along with the development, attempts have been made to reduce the number of piping components in the gas piping and to use the inlet gas source plug and the outlet test port member together with the elbow.

However, in any case, gas piping space on the inlet side and the outlet side is required. In the parentheses, the piping space of the gas meter often becomes a problem. In other words, the gas meter needs to be installed so as to face the front side of the pipe shaft and be provided for meter reading, etc.
There are always restrictions on the direction of the gas meter. In addition, the two gas pipes on the inlet side and the outlet side described above are required at a minimum, and when a gas water heater is incorporated in the pipe shaft, the gas pipe connected to this water heater is also required. Will be needed.

[0006] In view of the above, proposals to save space on the inlet and outlet pipes of the gas meter are awaited, but at present there is no definitive one.
The present invention has been proposed in view of the above points, and is a pipe that can minimize the space behind the gas meter, particularly the pipe behind the gas meter, and can reduce the labor and time of the piping work. The purpose is to provide a unit.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, in a gas meter mounting unit, an inlet base of a gas meter is provided on an upper part of a unit plate and on a left side thereof. An inlet-side joint mounting port for connection is arranged frontward, and an outlet-side joint mounting port for connecting an outlet base of a gas meter is disposed to the right of the inlet-side joint mounting port. An inlet-side gas pipe connection port is disposed below the inlet-side joint mounting port, and an outlet-side gas pipe connection port is disposed below the outlet-side joint mounting port. Between the mounting port and the inlet gas pipe connection port and between the outlet joint mounting port and the outlet gas pipe connection port,
The flattened inlet gas inlet pipe and outlet gas outlet pipe are connected by a flattened inlet gas inlet pipe and outlet gas outlet pipe, respectively.The flattened inlet gas inlet pipe and outlet gas outlet pipe are connected when the gas meter is attached. The gas meter is located behind the gas meter, and is configured so that the distance between the gas meter and a wall surface to which the gas meter is attached can be formed as small as possible.

Further, in the invention according to claim 2,
According to the first aspect of the present invention, the unit plate is divided into an entrance side and an exit side. According to this configuration, not only the space behind the gas meter can be reduced, but also the unit can be easily handled and mounted, particularly in a narrow place.

Further, in the invention according to claim 3,
In the invention as set forth in claim 1 or 2, the inlet gas introduction pipe and the outlet gas delivery pipe have gas passages formed therein by attaching a cover member having a U-shaped cross section to the surface of the unit plate. It is characterized by having a configuration. According to this configuration, the unit can be easily manufactured.

Further, in the invention according to claim 4,
The invention according to claim 3 is characterized in that the cover members on the entry side and the exit side are integrated.

Further, in the invention according to claim 5,
The invention according to claim 3 or 4, wherein the cover member is welded to a front surface of the unit plate. According to this configuration, it is not necessary to use packing or the like for gas sealing.

Further, in the invention according to claim 6,
In the invention described in claim 3 or 4, the cover member is
It is screwed to the front of the unit plate, and a sealing gasket is inserted into a joint between the unit plate and the cover member. According to this configuration, gas leakage can be eliminated in the unit.

Further, in the invention according to claim 7,
In the invention according to claim 3, 4 or 6, a packing for sealing is inserted in a joint portion between the unit plate and the cover member, and a tube integrated with the packing is inserted in a gas flow path. It is characterized by the following. According to this configuration, gas leakage can be eliminated in the unit.

Further, in the invention according to claim 8,
In any one of the first to seventh aspects of the present invention, a flexible pipe or a steel pipe is connected to the inlet gas pipe connection port and the outlet gas pipe connection port.
According to this configuration, the unit can cope with both the flexible pipe and the steel pipe currently used for the gas pipe. In some cases, a steel pipe as an inlet gas pipe is connected to the inlet gas pipe connection port of the gas meter, and a flexible pipe is connected to the outlet gas pipe connection port.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention described in claims 1 to 8 will be described below with reference to FIGS.

[0016]

Embodiment 1 FIG. 1 shows the front of a piping unit according to the present invention, and FIG.
4A shows the left side of the unit, FIG. 4B shows the right side of the unit, FIG. 4A shows the piping unit viewed from above, and FIG. 4B shows the unit viewed from below. FIG. 5 is a sectional view taken along line AA ′ in FIG. 1, FIG. 6 is a sectional view taken along line BB ′ in FIG. 1, and FIGS. The state where it is actually mounted is shown.

In FIGS. 1 to 10, reference numeral 1 denotes a unit plate. The unit plate 1 is formed of a vertically long rectangular metal plate, and has unit fixing holes 2 at four locations. In addition, a plate positioning groove and a projection 3 are provided on both upper and lower side edges.

Reference numeral a denotes an inlet gas pipe. This pipe a is an inlet joint connection port 4 with a tapered male thread formed on the front left side of the plate 1 at the upper left side.
Below the connection port 4, a thin rectangular cross-section connecting the inlet-side gas pipe connection port 5 with a tapered female thread formed in the front and the inlet-side joint connection port 4 and the inlet-side gas pipe connection port 5. It is formed by a shape (flat) inlet gas inflow path 6. The inlet-side gas pipe a having the above-described configuration is provided with an inlet-side pipe forming cover member a-1 having a U-shaped cross-section in which the inlet-side joint connection port 4 and the inlet-side gas pipe connection port 5 are formed on the front of the plate 1. It is formed by joining and welding 14 the surrounding joints.

B indicates an outlet gas pipe, and this pipe b
On the front side of the plate 1, the outlet joint connection port 7 is located on the right side of the inlet gas pipe a and has a tapered male thread formed on the upper side and facing the front. An outlet gas pipe connection port 8 with a tapered female thread formed in the direction, and a thin, flat (flat) cross section outlet gas outflow path connecting the outlet joint connection port 7 and the outlet gas pipe connection port 8. 9
It is formed with.

10 is an upper gas delivery pipe connection port with a tapered female thread located to the left of the outlet joint connection port 7, and 11 is a lower tapered female thread port located to the left of the outlet gas pipe connection port 8. A gas delivery pipe connection port, wherein the upper gas delivery pipe connection port 1
0 and the outlet joint connection port 7 are connected by an upper branch gas flow path 12 having a rectangular cross section (flat), and the output gas pipe connection port 8 and the lower gas delivery pipe connection port 11 are rectangular cross section (flat). In the case of the outlet gas pipe b, the outlet pipe cover member b-1 having a U-shaped cross section is connected to the plate 1 in the same manner as the inlet gas pipe a. It is formed by welding 14 peripheral joints in accordance with the front.

The piping unit according to the present invention is constructed as described above, and examples of piping using this unit (gas meter mounting side) are shown in FIGS. This piping example uses flexible pipes (hereinafter referred to as "flexible pipes") for the inlet and outlet gas pipes.
Is used, and an example of a piping work procedure will be described below.

The unit plate 1 has a fixing hole 2 and a screw 1
7 to the wall D. Next, at the inlet-side joint connection port 4,
Gas inlet 2 of gas stopper 20 having L-shaped gas flow path inside
1 is connected. In addition, the downward gas outlet 2 of the gas stopper 20
An entry-side union nut 23 is attached to 2.
Next, an L-shaped gas flow path is formed inside the outlet-side joint connection port 7, and a connection port 35 of a test port member 30 having a test port 31 with an inspection hole plug 32 formed on the front face is connected. An outlet union 34 is attached to the downward gas inlet 33 of the test port member 30.

Next, an inlet side flexible gas pipe 40 is connected to the inlet side gas pipe connection port 5 using an inlet side connection base 41,
Next, the outlet gas pipe connection port 8 and the upper gas delivery pipe connection port 10
An outlet flexible gas pipe 42 is connected to the lower gas delivery pipe connection port 11 by using an outlet connection base 43 to reach a gas plug in a wall of a gas appliance or a kitchen. Next, the inlet-side base B of the gas meter A is connected to the inlet-side union nut 23 of the gas stopper 20,
The outlet-side base C is connected to the outlet-side union nut 34 of the test port member 30.
To complete the installation of the gas meter A and the piping.

[0024]

Embodiment 2 This embodiment corresponds to the second aspect of the present invention. As shown in FIGS. 11A and 11B, an inlet gas pipe a and an outlet gas pipe b (unit plate) are provided. This is an embodiment in which 1) is divided into right and left. In this embodiment, fixing holes 2a, 2
The fixing holes 2a and 2b are screwed to the wall D to position and attach the unit plates 1a and 1b. The subsequent installation of the gas meter A is performed in the same manner as in the first embodiment.

[0025]

[Embodiment 3] This embodiment corresponds to the invention described in claim 8, and when the gas inlet and outlet pipes are not flexible pipes but steel pipes, FIGS. ), A downward elbow 50 is attached to the inlet-side gas pipe connection port 5 and the lower gas delivery pipe connection port 8, and the inlet-side and outlet-side steel pipe gas pipes (FIGS. 15, 01, and 02) which are started up. Is to connect.

[0026]

[Embodiment 4] This embodiment corresponds to the invention described in claim 6. In the units of Embodiments 1 to 3, the passage forming cover members a-1 and b-1 are attached to the plate 1 by welding 14. In this embodiment, as shown in FIGS. 13 (A) to 13 (C), the periphery of the cover members a-1 and b-1 is fixed to the unit plate with screws 60, and the inlet gas inflows. An example (B) in which a passage 6 and an outlet gas outflow passage 9 are formed and a packing 61 is incorporated in a joint portion to prevent gas leakage, and a tube 62 is formed integrally with the packing 61 to form a gas inflow passage 6. Outflow 9
It is an example (C) configured to prevent leakage of gas by being inserted into the inside. FIG. 14A is a front view of a tube 62 integrated with the packing 61, and FIG. 14B is an explanatory diagram of an example in which the packing 61 and the tube 62 are assembled in a flow path. In addition,
In the first and fourth embodiments, the cover member a-1 on the entry side is used.
And the cover member b-1 on the outlet side are formed independently of each other, but the inlet gas inlet path 6 and the outlet gas outlet path 9 are formed by pressing and integrating a single plate. (Claim 4).

[0027]

As described above, according to the present invention, the gas pipes on the inlet side and the outlet side behind the gas meter are rectangular and thin, so that the present invention can be compared with a conventional gas pipe using a circular gas pipe. Thus, the gas meter can be mounted as close to the wall as possible. As a result, it is particularly effective when the gas meter is mounted in a place where there is not enough space, such as in a pipe shaft. Further, in the unit of the present invention, since the positions (pitch) of the union nuts on the inlet side and the outlet side to which the inlet and outlet caps of the gas meter are connected are determined, the gas meter can be mounted as it is, and the gas meter can be mounted. Work can be done easily and in a short time.

[Brief description of the drawings]

FIG. 1 is a front view of a unit according to the present invention.

FIG. 2 is a rear view of the unit plate according to the present invention.

3A is a left side view of the unit, and FIG. 3B is a right side view.

4A is a plan view of the unit, and FIG. 4B is a bottom view.

FIG. 5 is a sectional view taken along line AA ′.

FIG. 6 is a sectional view taken along line BB ′.

FIG. 7 is a front view showing a state where the gas meter is attached to the unit.

FIG. 8 is a plan view showing a state where the gas meter is attached to the unit.

FIG. 9 is a left side view showing a state where the gas meter is attached to the unit.

FIG. 10 is a right side view showing a state where the gas meter is attached to the unit.

11A is a front view of a divided gas inlet pipe, FIG.
(B) is a front view of the outlet pipe.

FIG. 12A is a front view of a unit for connecting steel pipes,
(B) is a sectional view taken along line CC ′.

FIG. 13A is a front view of a screw fixing unit,
(B) is a cross-sectional view taken along the line DD ′, and (C) is a cross-sectional view in a state where a tube integrated with the packing is inserted into the gas flow path.

14A is a front view of a tube integrated with packing, and FIG. 14B is a cross-sectional view of a state in which the tube integrated with packing is incorporated in an inlet gas pipe (gas flow path).

FIG. 15 is an explanatory view of an example of installation (piping) of a gas meter using a conventional steel pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit plate 4 Inlet-side joint connection port 5 Inlet-side gas pipe connection port 6 Inlet-side gas inflow path 7 Outlet-side joint connection port 8 Outlet-side gas pipe connection port 9 Outlet-side gas outflow path 20 Gas stopper 30 Test port member 40 Inlet Side flexible gas pipe 42 Outlet side flexible gas pipe 50 Elbow 60 Screw 61 Packing 62 Tube

Continuing from the front page (72) Inventor Koichi Inagaki 2-8-8 Ichikawaminami, Ichikawa-shi, Chiba Prefecture Inside Keiyo Gas Co., Ltd. (72) Inventor Koji Taniguchi 2-8-8 Ichikawaminami, Ichikawa-shi, Chiba Prefecture Keiyo Gas Co., Ltd. Inside the company (72) Inventor Masanori Sato 2-8-8 Ichikawaminami, Ichikawa-shi, Chiba Keiyo Gas Co., Ltd. (72) Inventor Masahide Nakamura 2048-187 Honmachida, Machida-shi, Tokyo F-term (reference) 2F030 CC13 CF14

Claims (8)

[The claims] An inlet joint connection port for connecting an inlet cap of a gas meter is located on the front upper part of the unit plate and on the left side thereof, facing the front, and to the right of the inlet joint connection port. The outlet-side joint connection port for connecting the outlet-side base of the gas meter is disposed facing the front. Below the inlet-side joint connection port, an inlet-side gas pipe connection port is disposed, and the outlet side is provided. Below the joint connection port, an outlet gas pipe connection port is disposed, between the inlet joint connection port and the inlet gas pipe connection port and between the outlet joint connection port and the outlet gas pipe connection port, They are connected by a rectangular thin inlet gas inlet pipe and outlet gas outlet pipe, respectively.The flattened inlet gas inlet pipe and outlet gas outlet pipe are connected to the gas meter when the gas meter is attached. Located behind,
A gas meter mounting unit, wherein the distance between a gas meter and a wall surface on which the gas meter is mounted can be made as small as possible. 2. The gas meter mounting unit according to claim 1, wherein the unit plate is divided into an inlet side and an outlet side. 3. The method according to claim 1, wherein
The inlet gas inlet pipe and the outlet gas delivery pipe are configured such that the inlet and outlet gas flow paths are formed inside by attaching a cover member having a U-shaped cross section to the surface of the unit plate. Characteristic gas meter mounting unit. 4. The gas meter mounting unit according to claim 3, wherein the inlet and outlet cover members are integrated. 5. The method according to claim 3, wherein
The gas meter mounting unit, wherein the cover member is welded to the front of the unit plate. 6. The invention according to claim 3, wherein
A gas meter mounting unit, wherein the cover member is screwed to the front of the unit plate, and packing is inserted at a joint between the unit plate and the cover member for sealing. 7. The invention according to claim 3, wherein packing is inserted for sealing at a joint portion between the unit plate and the cover member, and the gas flow path on the inlet side and the outlet side is provided in the gas passage. A gas meter mounting unit, wherein a tube integrated with a packing is inserted. 8. A gas meter according to any one of claims 1 to 7, wherein a flexible pipe or a steel pipe is connected to the inlet gas pipe connection port and the outlet gas pipe connection port. Mounting unit.