JP2640651B2 - Gas meter connection unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a connection unit for connecting a gas meter to a pipe.

[0002]

2. Description of the Related Art A connection unit for connecting a pipe to a gas meter has already been developed. For example, the following publication describes a connection unit for a gas meter. JP-B-3-50970, JP-B-3-25139, JP-A-62-170525, JP-A-4-61025, JP-A-4-124424, JP-A-4-126125.

The connection units for gas meters described in these publications have, on the lower surface, an inlet connection portion for connecting the meter and an outlet connection portion, and on the upper surface, a discharge pipe connection portion for connecting a gas pipe and an inflow connection portion. And a pipe connection.

The inlet connection is connected to the meter inlet of the gas meter, and the outlet connection is connected to the meter outlet of the gas meter. The exhaust pipe connection is connected to a gas exhaust pipe,
The inflow pipe connection is connected to the gas inflow pipe. The inlet connection is connected to the inflow pipe connection via the inflow path, and the outlet connection is connected to the discharge pipe connection via the discharge path.

[0005] Therefore, this connecting unit converts the gas into the inflow pipe → inflow pipe connection → inflow channel → inlet connection → meter inlet → gas meter → meter outlet → outlet connection →
The fluid flows along the path of the discharge path → discharge pipe connection → discharge pipe.

[0006]

As described above, when the gas meter is connected to the pipe via the connection unit, the connection unit can be used as a fixed base, so that the gas meter can be securely fixed. It is important to install the gas meter so that it does not vibrate. This is because many gas meters have built-in complicated electronic circuits such as microcomputers, and some have built-in emergency shutoff valves that detect and close vibrations during earthquakes. In order to mount the gas meter without vibration, it is important to shorten the entire length of the pipe. In particular, if the length of the flexible pipe that can be freely deformed is increased, the gas meter cannot be fixed securely. This is because a long pipe makes the gas meter easy to vibrate.

When the gas pipe and the outlet and the inlet of the gas meter are arranged on the same side, the conventional connection unit can connect the pipe in the shortest distance. However, the outlet and the inlet of the pipe and the gas meter cannot always be arranged on the same side. For example, in the case of an apartment house, as shown in FIG. 1, gas meters 1 are provided on both sides of a gas pipe 2. As shown in this figure, in order to arrange the gas meter 1 and make the pipe 2 the shortest distance, it is necessary to use the gas meter 1 in which the outlet 1B and the inlet 1A are reversed for the right and left sides in the related art. is there. For this reason, it is necessary to manufacture two types of gas meters having the same internal structure and the outlet and the inlet being reversed left and right. This increases the variety of gas meters and substantially increases costs.

When a gas meter having the same outlet and inlet is disposed as shown in FIG. 1, one gas meter can be connected with the shortest distance, while the gas meter on the other side is
Since the outlet and the inlet are reversed, it is necessary to connect the pipes crossing each other, so that the total length of the pipes becomes longer and the pipes cannot be neatly cleaned.

[0009] The present invention has been developed for the purpose of eliminating this drawback. An important object of the present invention is to eliminate the need for two types of gas meters having different outlets and inlets, and to make it simple and easy to use even if the gas inlet and outlet pipes are opposite to the outlet and inlet of the gas meter. Moreover, it is an object of the present invention to provide a gas meter connection unit capable of reliably piping at the shortest distance.

[0010]

The connection unit for a gas meter according to the present invention has the following configuration to achieve the above object. The connection unit of the gas meter is an outlet connection part 4 connected to the meter outlet 1B of the gas meter 1.
And an inlet connection 3 connected to the meter inlet 1A, an inlet connection 5 to which the gas inlet 2A is connected, and an outlet connection 6 to which the gas outlet 2B is connected.

The outlet connection part 4 is connected to a discharge pipe connection part 6 through a discharge passage 8 provided therein. The inlet connection part 3 is connected to the inflow pipe connection part 5 through an inflow passage 7 provided therein. Further, the outlet connection part 4 and the inlet connection part 3 to which the gas meter 1 is connected are disposed on the opposite sides to the inflow pipe connection part 5 and the discharge pipe connection part 6 connecting the gas inflow pipe 2A and the discharge pipe 2B. Have been. In a normal use state, the inlet connection part 3 and the outlet connection part 4 are located on the lower surface of the connection unit, and the discharge pipe connection part 6 and the inflow pipe connection part 5 are located on the upper surface.

Further, the gas meter connection unit according to the present invention has an inflow passage 7 and a discharge passage 8 so that when the connection position between the pipe and the gas meter is reversed left and right, the pipe can be formed at the shortest distance.
And are internally connected left and right reversed. Discharge pipe connection 6
, The inlet connection part 3 is disposed on the left, and the outlet connection part 4 is disposed on the right, as viewed from the front with the inflow pipe connection part 5 on the right and the inflow pipe connection part 5 on the right. Furthermore, the gas of the present invention
The meter connection unit has an inlet connection 3 and an outlet connection
The center distance of the part 4, the inflow pipe connection part 5 and the discharge pipe connection part 6
Are configured to have different center distances.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
It is used where A and the outlet 1B need to be connected with the left and right sides of the pipe 2 to be connected. FIG. 3 shows a connection state of the pipe 2 using the connection unit of the present invention. As shown in this figure, the connection unit of the present invention
It has an inflow channel 7 and a discharge channel 8 that turn inside left and right, and turns left and right upside down. For this reason, even if the pipe 2 is used for the purpose opposite to the outlet 1B and the inlet 1A of the gas meter 1, the pipe can be provided at the shortest distance without crossing the pipes. Outlet 1B and inlet 1A of pipe 2 and gas meter 1
When the left and right cannot be reversed, piping can be performed at the shortest distance without using a connection unit or using a connection unit where the inflow path 7 and the discharge path 8 do not intersect.

Thus, the connection unit of the present invention
Even if the pipe 2 and the outlet 1B and the inlet 1A of the gas meter 1 are reversed, the pipe can be connected in the shortest distance, so that the gas meter 1 is securely fixed even in this use state, and the gas meter 1 vibrates even in a long pipe. Can be prevented.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a connection unit of a gas meter for embodying the technical idea of the present invention, and do not specify the connection unit of the present invention as follows.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the examples are referred to as "claims" and "embodiments". "And" Means for solving the problem ". However, the members described in the claims are not limited to the members of the embodiments.

The connection unit of the gas meter shown in FIGS. 4 to 7 is manufactured by casting a metal such as aluminum die-cast, Shinchu, and gunmetal. This connection unit connects the lower surface to the gas meter 1 and the upper surface to the pipe 2. Therefore, on the lower surface, the meter outlet 1B of the gas meter 1
And an inlet connection 3 connected to the meter inlet 1A. On the upper surface, an inflow pipe connecting portion 5 for connecting the gas inflow pipe 2A and a gas discharge pipe 2B
And a discharge pipe connecting portion 6 for connecting the two.

The connection unit is provided with a discharge passage 8 and an inflow passage 7 that are not communicated with each other, so that the gas in the pipe 2 flows into the gas meter 1 and the gas discharged from the gas meter 1 flows out into the pipe 2. Has been drilled. Discharge pipe 2B
Connects the outlet connection part 4 connected to the outlet 1B of the gas meter 1 to the discharge pipe connection part 6 on the upper surface. The inflow passage 7 is provided with an inlet connection portion 3 connected to the inlet 1A of the gas meter 1,
It communicates with the inflow pipe connection part 5.

The inlet connection part 3, the outlet connection part 4, the discharge pipe connection part 6, and the inflow pipe connection part 5, which are connected to the gas meter 1 and the pipe 2, can be connected to the gas meter 1 and the pipe 2 via a connection fitting 9. Thus, the female screw 10 is provided at the opening of the discharge passage 8 and the inflow passage 7. The portion where the female screw 10 is provided is protruded to increase the number of threads of the female screw 10. The male screw of the connection fitting 9 is screwed into the female screw 10 provided at the open end of the inflow path 7 and the discharge path 8 of the connection unit, and the connection fitting 9
To the gas meter 1 and the pipe 2 via

Inlet connection 3 connected to gas meter 1
The distance between the inlet 1A and the outlet 1B of the gas meter 1 is set so that it can be connected to the outlet 1B and the inlet 1A of the gas meter 1 via a straight pipe union which is a connection fitting 9.
Is designed to be equal to the center distance of The gas meter 1 sets the center distance between the inlet 1A and the outlet 1B to 90 mm or 130 mm.
mm. Therefore, in the connection unit shown in FIG. 5, the center distance between the outlet connection part 4 and the inlet connection part 3 provided on the lower surface is 90 mm, and the center distance between the discharge pipe connection part 6 and the inflow pipe connection part 5 provided on the upper surface is 130 mm. It is designed.

The connection unit of this structure is used upside down so that the center distance between the outlet 1B and the inlet 1A is 90 mm, and a straight pipe union is used for the outlet 1B and the inlet 1A of the gas meter 1 which is 130 mm. Can be connected.

As shown in FIGS. 5 to 7, in the connection unit having the same structure of the inlet connection part 3, the outlet connection part 4, the discharge pipe connection part 6, and the inflow pipe connection part 5, all the connection parts are gas meters 1. And piping 2 can be connected. Therefore, in this specification, the inlet connection part 3 and the outlet connection part 4 shall mean the connection part connected to the gas meter 1, and the discharge pipe connection part 6 and the inflow pipe connection part 5 shall be connected to the pipe 2
Means a connecting part connected to the terminal.

Further, the connecting unit shown in FIG. 5 has an inlet connecting portion 3 and an outlet connecting portion 4 at symmetric positions.
A discharge pipe connection 6 and an inflow pipe connection 5 are provided. The connection unit having this structure has a feature that the left and right mounting positions of the gas meter 1 do not change when used upside down. This is because the center of the inlet connection part 3 and the center of the outlet connection part 4 and the center of the discharge pipe connection part 6 and the center of the inflow pipe connection part 5 do not change even if the top and bottom are inverted.

The connection unit connects the pipe 2 whose inflow side and discharge side are reversed left and right to the gas meter 1. Therefore, as shown in FIG. 3 and FIG.
Are arranged so as to cross each other without being communicated inside. As shown in FIG. 5, in a state where the discharge pipe connection part 6 is on the left and the inflow pipe connection part 5 is on the right, as viewed from the front,
The inlet connection 3 is arranged on the left and the outlet connection 4 is arranged on the right.

When the pipe 2 is connected to the gas meter 1 via the connection unit having this structure, as shown in FIG. 3, the gas flowing from the inflow pipe 2A located on the right side flows into the inflow pipe connection part 5 → inflow path 7 → The gas passes through the inlet connection 3 and flows into the gas meter 1. The gas discharged from the gas meter 1 passes through the gas meter outlet 1B → the outlet connection part 4 → the discharge path 8 → the discharge pipe connection part 6 and flows out to the discharge pipe 2B.

Inside the connection unit, the discharge passage 8 and the inflow passage 7 are upside down on the left and right sides. For this reason, gas flowing into the upper surface of the connection unit from the right side is discharged from the left side of the lower surface and flows into the gas meter 1. The gas discharged from the gas meter 1 is discharged from the lower right side to the upper left side and flows out to the discharge pipe 2B.

[0027]

The gas meter connection unit according to the present invention is used for applications in which the outlet and the inlet of the pipe and the gas meter are reversed, so that the pipe and the gas meter can be easily, easily and quickly shortened at the shortest distance. There is a feature that can be plumbed. This is because the connection unit of the present invention has an inflow path and a discharge path that connect the left and right parts inside in reverse. The connection unit that locates the outlet connection on the right side of the lower surface and the inlet connection on the left side has the inflow pipe connection on the right side of the upper surface and the discharge pipe connection on the left side. For this reason, the gas in the inflow pipe is changed from right to left inside the connection unit and flows into the gas meter. Further, the gas discharged from the gas meter is changed from the right side to the left side of the gas meter and discharged from the discharge pipe inside the connection unit. In this manner, the gas meter of the present invention can reverse the connection position inside and outside. Therefore, when replacing the gas meter with one whose inlet and outlet are opposite left and right, there is no need to cross the pipes, and there is no need to rework the pipes. There is a feature that can be piped well. Also, as shown in FIG.
When a gas meter having the same outlet and inlet is connected to both sides of the book pipe, the gas meter can be securely fixed without crossing the pipe, and the pipe can be neatly fixed by piping. Therefore, by using the connection unit of the present invention, one type of gas meter having the same outlet and inlet can be efficiently attached.

Furthermore, connection of the gas meter of the present invention
The unit can be turned upside down and
Outlet and inlet of gas meter with different center distance
There is a feature that can be easily connected to It is the gas of the present invention.
Summeter connection unit has inlet and outlet connections
Distance between the center of the inlet pipe connection and the outlet pipe connection
This is because the distance is configured to be different.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a connection state of a gas meter.

FIG. 2 is a front view showing a pipe state in which the connection position between the pipe and the gas meter is reversed left and right.

FIG. 3 is a schematic front view showing a use state of the connection unit according to the embodiment of the present invention;

FIG. 4 is a sectional view showing a use state of the connection unit of the present invention.

FIG. 5 is a front view of the connection unit according to the embodiment of the present invention;

FIG. 6 is a plan view of the connection unit shown in FIG. 5;

FIG. 7 is a side view of the connection unit shown in FIG. 5;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Gas meter 1A ... Inlet 1B ... Outlet 2 ... Piping 2A ... Inflow pipe 2B ... Discharge pipe 3 ... Inlet connection part 4 ... Outlet connection part 5 ... Inflow pipe connection part 6 ... Discharge pipe connection part 7 ... Inflow path 8 ... Discharge path 9 Connection fitting 10 Female screw

Claims (1)

(57) [Claims] An outlet connection (4) connected to a meter outlet (1B) of a gas meter (1), an inlet connection (3) connected to a meter inlet (1A), and a gas inflow pipe (2A). ) Is connected, and a discharge pipe connection (6) to which a gas discharge pipe (2B) is connected, and an outlet connection (4) is provided inside the discharge pipe. Through a channel (8) to a discharge pipe connection (6),
The inlet connection (3) is connected to an inflow pipe connection (5) through an inflow passage (7) provided therein, and further, an outlet connection (4) to which a gas meter (1) is connected and Inlet connection (3)
In a gas meter connection unit arranged on the opposite side of the inflow pipe connection (5) and the discharge pipe connection (6) connecting the gas inflow pipe (2A) and the discharge pipe (2B), The inflow path (7) and the discharge path (8) are internally connected left and right in reverse, and the discharge pipe connection (6) is on the left and the inflow pipe connection (5) is on the right, as viewed from the front. , The inlet connection (3) is arranged on the left, the outlet connection (4) is arranged on the right, the center distance between the inlet connection (3) and the outlet connection (4), and the inflow pipe
The center distance of the connection part (5) and the discharge pipe connection part (6) should be different.
A connection unit for a gas meter, wherein the connection unit is configured as follows .