JP3038011U - Jig for checking the position of the meter installation port in the gas pipe - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a position inspection jig capable of accurately adjusting a meter mounting port to an appropriate position when installing the gas meter at the meter mounting port of a gas pipe. SOLUTION: A jig substrate 2, a level 5 for adjusting the substrate 2 in a horizontal posture, and a pipe port connecting member 3 provided at one end of the substrate and detachably attached to meter mounting ports 20a, 20b.
When the board port connecting member 3 is connected to the meter mounting port 20b on one side and the circuit board 2 is horizontally disposed, both meter mounting ports 20a and 20b are disposed at predetermined proper positions. Jig for checking the position of the meter mounting port in the gas pipe, which includes the contact detecting member 4 that contacts the other meter mounting port 20a.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention is directed to connecting the inlet and outlet meter fittings of gas pipes arranged side by side so as to open downwards to the inlet and outlet fittings of a gas meter. The present invention relates to a jig for inspecting the position of a meter mounting port in a gas pipe for inspecting.

[0002]

[Prior art]

 As shown in FIG. 6, the gas pipe (10) in which a large-scale gas meter (20) for business use is installed is composed of a large number of single pipe members, and the inlet side gas pipe ( 10a) and the outflow side gas pipe (10b) are separated. Further, the gas pipes (10a) and (10b) on the inflow side and the outflow side have rising portions (11a) (11b) vertically arranged so as to rise upward from the ground (G), and the rising portions thereof. The horizontal parts (12a) and (12b) are horizontally arranged so as to extend laterally from the upper end of the part, and the meter mounting part (that is vertically arranged so as to extend downward from the ends of the horizontal parts (12a) and (12b) ( 13a) and (13b). Further, the meter mounting openings (30a) (30b) such as union joints arranged at the lower ends of the meter mounting portions (13a) (13b) are the inlet and outlet caps (20a) (20b) of the gas meter (20) to be installed. They are arranged side by side so as to open downward with an interval corresponding to the dimension between them.

When installing the gas meter (20) in such a gas pipe (10), for example, the outflow side base (20b) of the gas meter (20) is connected to the outflow side meter mounting port of the gas pipe (10). After connecting and fixing to (30b), each single pipe member of the gas pipe (10) and the meter caps (20a) (20b) parts are forcibly bent to absorb the pipe assembly error and inflow. The side base (20a) is positionally associated with the inlet side meter mounting port (30a), and the base (20a) is connected and fixed to the meter mounting port (30a).

[0004]

[Problems to be solved by the device]

 However, if the gas pipe (10) is used for a long time in a state in which it has been forcibly bent as described above, each single pipe member of the gas pipe (10) may be harmfully deformed. Therefore, when replacing the meter, it is necessary to discard the deformed single pipe member and the like, and there is a problem that many defective products occur.

If the meter mounting ports (30a) (30b) of the gas pipe (10) can be adjusted to predetermined proper positions before the gas meter is installed, the above problem can be solved. There is no dedicated member for accurately inspecting and adjusting the arrangement position of the meter mounting ports (30a) (30b) of the pipe (10). For this reason, the operator can roughly adjust the positions of the meter mounting openings (30a) and (30b) by visual inspection, etc., and in the end, the meter (20) is installed by forcibly bending the single pipe member or the like. This is the case at present, and especially in the gas pipe (10) for installing a large-scale gas meter, the distance between the meter mounting ports (30a) and (30b) is large, so the positional relationship between the two can be visually checked. Therefore, it was very difficult to adjust it accurately, and it was not possible to solve the above problems such as pipe deformation.

On the other hand, in recent years, a gas meter called a microcomputer meter, which has an emergency cutoff valve for automatically cutting off the supply of gas in an emergency such as a gas leak, is rapidly becoming popular.

However, when such a microcomputer meter is installed in, for example, the gas pipes (10a) (10b) having an assembly error as described above, the meter installation ports (30a) (30b) at improper positions are installed. Forcibly bending the mouthpiece part of the micommeter to connect and fix it.If the mouthpiece part is bent in such a way, distortion will occur around the emergency shutoff valve inside the micommeter, for example. When the is activated, the gas passage may not be reliably blocked by the valve, which may cause problems such as not being able to completely block the gas flow.

This invention solves the above-mentioned problems of the prior art, and when installing the gas meter at the meter installation port of the gas pipe, the meter installation port can be accurately adjusted to an appropriate position. An object of the present invention is to provide a jig for inspecting the position of a meter installation port in a gas pipe that can prevent harmful pipe deformation due to forced installation and can reliably shut off the gas passage by an shutoff valve in the microcomputer meter in an emergency. And

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is arranged in a gas pipe composed of a plurality of single pipe members side by side so that inflow side and outflow side meter mounting openings are opened downward at a predetermined interval. On the other hand, when connecting the inflow side and outflow side mouthpieces of the gas meter to the inflow side and outflow side meter mounting ports, a gas pipe for inspecting the installation position of the inflow side and outflow side meter mounting ports A jig for checking the position of the meter mounting opening in the jig board, the length of which is at least longer than the distance between the inflow side and outflow side meter mounting openings, and the jig board. A level for adjusting the board in a horizontal position, and a pipe port connection provided at one end of the jig board and detachable from at least one of the inflow-side and outflow-side meter mounting openings Element , The other side of the jig board is connected, the pipe port connecting member is connected to one of the meter mounting openings, and the jig board is placed horizontally, both meter mounting openings are in proper positions. The gist of the present invention is to include a contact detection member that comes into contact with the other meter mounting port when it is arranged in the.

In the position inspection jig of the present invention, after connecting the pipe port connecting member to one meter mounting port, the gas pipe is adjusted so that the jig substrate is horizontal, and then the other port is connected. By adjusting the gas pipe so that the motor mounting port comes into contact with the contact detection member, the meter mounting port of the gas pipe can be accurately arranged at a predetermined proper position.

On the other hand, in the present invention, a plurality of single pipe members forming the gas pipe are screwed and connected between adjacent single pipe members, and the meter is adjusted by adjusting the screwing amount. It is preferable that the mounting position of the mounting port can be adjusted.

Further, in the present invention, the gas pipe includes a rising portion vertically arranged so as to rise upward from the ground, and a horizontal portion horizontally arranged so as to extend laterally from an upper end of the rising portion. It is preferable to employ a configuration in which the meter mounting portion is vertically arranged so as to extend downward from the end of the horizontal portion, and the meter mounting port is provided at the lower end of the meter mounting portion. .

Further, in the present invention, it is desirable to adopt a configuration in which the distance between the inflow side and outflow side meter mounting ports is set to 220 mm or more for installing a large gas meter.

Further, in the present invention, the pipe port connecting member is constituted by a cylindrical member having an external thread engraved on the outer periphery thereof, while the meter mounting port has a substantially cylindrical shape with a flange portion provided on the outer periphery thereof. A union joint consisting of a joint body and a cap nut rotatably provided around the joint body around the axis and having an internal thread engraved with a female screw capable of engaging with the male thread of the pipe port connecting member. The lower part of the joint body is inserted into the pipe port connecting member, the cap nut is tightened to the pipe port connecting member, and the upper end surface of the pipe port connecting member is pressed against the brim portion of the joint body. Therefore, it is more preferable to connect the pipe port connecting member to the meter mounting port.

Further, the present invention provides the jig substrate with a plurality of the pipe port connecting members and the contact detecting members, and a pipe port having a desired spacing from a plurality of combinations of the pipe port connecting members and the contact detecting members. It is even more preferable that the combination of the connection member and the contact detection member be selected.

Further, according to the present invention, the pipe port connecting member and the contact detecting member are provided on both front and back surfaces of the jig substrate, and the spirit level is provided on both front and back surfaces of the jig substrate. Is more desirable.

Further, in the present invention, the piping port connecting member is provided on one end side of the front surface and one end side of the back surface of the jig substrate, and the contact detection member is on the other end side of the front surface of the jig substrate. The level is provided at the other end of the back surface and at a position closer to the center from the other end of the back surface, and the level is provided at the center of the front surface of the jig substrate and the center of the back surface. Even more desirable.

[0018]

[Embodiment of the invention]

 An inspection jig (1) according to an embodiment of the present invention will be described in detail below with reference to the drawings. First, a gas pipe (10) for inspecting with the inspection jig (1) and The large gas meter (20) to be installed will be described. As shown in FIGS. 3 and 4, the gas pipe (10) includes a rising pipe (11), a bush (12), a nipple (13), and a meter gas. A large number of single pipe members such as a plug (14), a die with pressure plug (15), an elbow pipe (16), and union joints (30a) (30b) are screwed together and connected. Further, the gas pipe (10) is divided into an inflow side gas pipe (10a) and an outflow side gas pipe (10a) (10b) based on the meter installation position, and the inflow side and outflow side gas pipes (10a) ) (10b) is a rising part (11a) (11b) vertically arranged so as to rise from the ground, and a horizontal part horizontally arranged so as to extend laterally from the upper end of the rising part. It has a part (12a) (12b) and a meter attachment part (13a) (13b) arranged vertically so as to extend downward from the end of the horizontal part (12a) (12b). The union joints (30a) (30b) forming a meter mounting port are provided at the lower ends of the meter mounting parts (13a) (13b), and the inlet and outlet caps (20a) of the gas meter (20) to be installed are installed. They are arranged side by side so as to open downward with an interval corresponding to the dimension between (20b).

As shown in FIG. 2 and the like, the union joints (30a) and (30b) are provided with collar portions (31a) and (31b) on their outer circumferences, and are engaged with the collar portions (31a) and (31b). A joint body (32a) (32b) that can be inserted into the bases (20a) (20b) of the gas meter (20) and a collar portion (31a) (31b) from the outside on the outer circumference of the joint body (32a) (32b). The cap nuts (33a) and (33b) are provided so as to cover them.

In a gas meter (20) such as a microcomputer meter, cylindrical inflow side and outflow side mouthpieces (20a) (20b) are provided at predetermined intervals at predetermined intervals, and each mouthpiece (20a) (20b) ), An external thread is engraved so that the cap nuts (33a) (33b) of the union joints (30a) (30b) can be screwed together. The gas meter (20) is a large one used for business purposes, and the distance between the caps (20a) (20b) (distance between shafts, the same applies below) is 220 mm or more, for example, 380 mm. It is composed of things.

In FIG. 3, (21) is a button for performing a return operation of the emergency shutoff valve, (22) is provided with various sensors and a control plate for controlling the drive of the shutoff valve and the like. It is a control box.

On the other hand, as shown in FIGS. 1 and 2, the inspection jig (1) of the present embodiment uses a gas pipe (20) when installing the large-sized gas meter (20) in the gas pipes (10a), (10b). A jig substrate (2) and a pipe port connecting member (3) fixed to one end side of the upper surface of the jig substrate (2) for inspecting the arrangement positions of the union joints (30a) and (30b) of (10). The jig substrate (2) includes a contact detection member (4) fixed to the other end of the upper surface of the jig substrate (2) and a bubble level (5) fixed to the center of the upper surface of the jig substrate (2).

The jig substrate (2) has a length corresponding to the space between the bases (20a) (20b) of the gas meter (20).

The pipe port connecting member (3) is composed of a cylindrical member having a size into which the joint bodies (32a) and (32b) of the union joints (30a) and (30b) can be inserted. A male screw (3a) is engraved so that the nuts (33a) (33b) can be screwed together.

The contact detection member (4) is provided at an interval corresponding to the size between the pipe port connecting member (3) and the caps (20a) (20b) of the gas meter (20). It is composed of a cylindrical member that is slightly smaller than the pipe connecting member (3). As will be described later in detail, the contact detecting member (4) connects the pipe port connecting member (3) to one of the union joints (30b) of the gas pipes (10a) and (10b), and the jig. When the union joints (30a) and (30b) are arranged at proper positions in the state where the board (2) is horizontally arranged, the lower end of the joint body (32a) of the other union joint (30a) comes into contact. Is configured.

Next, a method for adjusting the union joints (30a) and (30b) of the gas pipes (10a) and (10b) to appropriate positions by using the inspection jig (1) having the above-described configuration will be described with reference to FIG. I will explain. In FIG. 2, the union joints (30a, 30b) are exaggeratedly shown in an exaggerated manner in order to facilitate understanding of the present invention.

First, as shown in FIG. 2 (a), connect the pipe port connecting member (3) of the inspection jig (1) to the union joint (30 a) of the gas pipes (10 a) and (10 b). (30b) facing one of the union joints (for example, 30b), and screw the cap nut (33b) of the union joint (30b) into the male screw (3a) of the pipe port connecting member (3). As a result, the upper end surface of the pipe port connecting member (3) abuts and engages with the union collar portion (31b) and is securely tightened until the cap nut (33b) does not rotate. As a result, the substrate (2) of the inspection jig (1) is arranged at a right angle to the union joint (30b).

The pipe port connecting member (3) of the inspection jig (1) may be connected to any of the union joints (30a) (30b). To facilitate the adjustment work, it is preferable to connect the union joints (30a, 30b) to the union joint located on the lower side (low level side) by visual judgment.

Next, as shown in FIG. 2 (b), while checking with the level (5), the outflow side gas pipe is arranged so that the substrate (2) of the inspection jig (1) is horizontally arranged. The amount of screwing between the adjacent single pipe members in (10b) is adjusted. Specifically, the screw amount (rotation amount) of the elbow pipe (16) with respect to the nipple (13) in the outflow side gas pipe (10b) is adjusted to adjust the inclination of the union joint (30b). As a result, the jig substrate (2) is arranged horizontally and the union joint (30b) of the outflow side gas pipe (10b) is arranged vertically.

Next, as shown in FIG. 2C, the lower end of the joint body of the union joint (30a) in the inflow gas pipe (30a) is connected to the contact detection member (4) of the inspection jig (1). The screwing amount of the adjacent single pipe members in the inflow gas pipe (10a) is adjusted so as to contact the upper end surface. Specifically, in the inflow gas pipe (10a), the amount of screwing of the elbow pipe (16) with respect to the nipple (13) or the like is adjusted to adjust the inclination of the union joint (30a) and the union joint (30a). The height of the union joint (30a) is adjusted by adjusting the screwing amount with respect to the elbow pipe (16). When it is necessary to greatly change the height position of the union joint (30a), the screw stroke of the union joint (30a) is insufficient and the union joint (30a) is not provided in the predetermined position. In some cases, the bush (12), nipple (13), etc. cannot be placed at the height, but the bushing (12), nipple (13), etc. are rotated with respect to the meter gas plug (14), elbow pipe (16), etc. to adjust the screwing amount. By doing so, the height position of the union joint (30a) may be largely changed, and the union joint (30a) may be arranged at an appropriate position.

In this way, the joint body (32a) of the inflow side union joint (30a) is uniformly contacted with the upper end surface of the contact detection member (4) of the inspection jig (1) over the entire circumferential direction, and the inflow side The union joint (30a) is arranged vertically, and the union joint (30a) is arranged at the same height (same level) as the union joint (30b) of the outflow side gas pipe (10b).

After that, the fastening of the outflow side union joint (30b) to the pipe connecting member (3) is released, and the inspection jig (1) is removed from the gas pipe (10) to thereby union the joint (30a). The position adjustment work of (30b) is completed.

After adjusting the union joints (30a) (30b) to proper positions in this way, the union joints (30a) (30b) are fastened with the caps (20a) (20b) of the gas meter (20). The gas meter (20) can be installed without difficulty.

As described above, when the position inspection jig (1) of the present embodiment is used, the arrangement positions of the gas meter connection union joints (30a) (30b) of the gas pipes (10a) (10b) can be changed. Since it can be adjusted to an appropriate position, for example, when connecting and fixing the union joint (30a) to the mouthpiece (20a) of the gas meter (20) such as a microcomputer meter, adjust the mouthpiece (20a) to the union joint position. There is no need to forcibly bend it and it can be smoothly connected and fixed. Therefore, the mouthpiece and the like are accurately arranged in a proper posture, and the gas passage can be reliably shut off by the shutoff valve in the microcomputer meter in an emergency.

Further, since the disposition positions of the union joints (30a) (30b) are accurately adapted to the disposition positions of the both caps (20a) (20b) of the gas meter (20), the pipe (10) It is not necessary to largely bend each single pipe member, and the meter load can be evenly distributed by the inflow side and outflow side gas pipes (10a), (10b) to be supported in good balance. The single pipe members of the pipes (10a) and (10b) do not bend in an unreasonable posture. Therefore, it is possible to effectively prevent the deformation of the pipe and the occurrence of defective products.

By the way, in the above embodiment, when adjusting the arrangement positions of the union joints (30a) (30b), the pipe joints (3) of the inspection jig (1) are connected to the union joints (30a). The reason for connecting to the union joint located on the low level side of (30b) is as follows. That is, the inspection jig (1) of the present embodiment is configured so that the pipe port connecting member (3) is connected to one union joint and the other jig joint (2) is arranged in a horizontal plane. Is in the proper position, that is, when the other union joint is at the same level as the one union joint, the contact detection member (4) of the inspection jig (1) contacts the other union joint. Therefore, if it is attempted to connect the pipe port connecting member (3) of the inspection jig (1) to the union joint on the high level side, the contact detection member (4) will interfere with the union joint on the low level side. Will be done. Therefore, in order to avoid the interference, while adjusting the position of the union joint on the low level side, at the same time, the work of connecting the pipe connecting member (3) to the union joint on the high level side and the high level union joint are performed. It is necessary to adjust the position of the side union joint. In this way, when attempting to connect the pipe port connecting member (3) to the union joint on the high level side, it is necessary to perform a plurality of works in parallel, and the position adjustment work may not proceed smoothly. As described above, the pipe port connecting member (3) is preferably connected to the union joint on the low level side.

FIG. 5 is a view showing a jig (51) for inspecting the position of a meter mounting port in a gas pipe, which is a modified example of the present invention.

As shown in the figure, the inspection jig (51) has a jig substrate (52), and the jig substrate (52) has the same upper surface (front surface) side as the above embodiment. Further, a first pipe port connecting member (53a), a first contact detecting member (54a), and a first level (55a) are provided. Also, on the lower surface (back surface) side of the jig body (52), a second pipe port connecting member (53b) is fixed at a position closer to the center from one end side thereof, and a second level (55b) is provided at a substantially central position. ) Is fixed. Further, on the lower surface side of the jig body (52), the second contact detecting member (54b) is fixed to the other end side, and the third contact detecting member (54c) is fixed to the position closer to the center from the other end side. Has been done.

Further, in the present inspection jig (51), the interval (first interval) between the first pipe port connecting member (53a) and the first contact detection member (54a) and the second pipe port connecting member ( 53b) and the interval (second interval) between the second contact detecting member (54b) and the interval (third interval) between the second pipe port connecting member (53b) and the third contact detecting member (54b). Different from each other, specifically, the first interval is set to 380 mm, the second interval is set to 320 mm, and the third interval is set to 220 mm, and these intervals are the three types of large size currently in practical use. Corresponds to the dimension between the bases of gas meters.

In this inspection jig (51), using the first pipe port connecting member (53a), the first contact detection member (54a) and the first level (55a), as in the above embodiment, A method for adjusting the position of the meter mounting port of the gas pipe, and a meter for the gas pipe using the second pipe port connecting member (53b), the second contact detection member (54b) and the second level (55b). Use the method of adjusting the position of the mounting port and the position of the meter mounting port of the gas pipe by using the second piping port connecting member (53b), the third contact detection member (54c) and the second level (55b). Adjustment method can be performed, and by appropriately using these three methods, one jig (51) can be used to adjust the positions of multiple patterns of gas piping ports according to the model of the gas meter to be installed. It can be performed.

In the above-described embodiments and the like, the inspection jig of the present invention adjusts the position of the large-scale gas meter pipe. However, the present invention is not limited to this, and is adopted in a general house or the like. It may be configured to adjust the position of the gas pipe for the small gas meter.

[0042]

[Effect of the invention]

 As described above, according to the jig for inspecting the position of the meter mounting port in the gas pipe of the present invention, the pipe port connecting member that can be connected to one of the meter mounting ports is provided on one end side of the jig substrate. At the other end of the jig substrate, both meter mounting ports are arranged at the proper positions when the pipe connecting parts are connected to one meter mounting port and the jig substrate is placed horizontally. In this case, since a contact detection member that comes into contact with the other meter mounting port is provided, connect the pipe port connecting member to one meter mounting port, and then connect the gas piping so that the jig board is horizontal. By adjusting and adjusting the gas pipe so that the other meter mounting port comes into contact with the contact detection member, the meter mounting port of the gas pipe can be accurately arranged at a predetermined proper position. Therefore, when connecting both caps of a gas meter to both the inlet and outlet meter mounting ports, for example, it is not necessary to forcibly bend the caps according to the position of the meter mounting port, and the connection can be fixed smoothly and smoothly. Since it is possible to accurately arrange the meter cap portion and the like in a proper posture, for example, in an emergency, the gas passage can be reliably shut off by the shut-off valve in the micom meter. Furthermore, since both meter mounting ports can be accurately fitted to both caps of the gas meter, it is not necessary to forcibly bend the piping when installing the meter, and the gas meter is well balanced by both gas piping on the inflow side and the outflow side. Since it can be supported, each single pipe member of the gas pipe does not bend in an unreasonable posture. Therefore, it is possible to obtain the effect of reliably preventing the deformation of the pipe and the occurrence of defective products.

In the present invention, the jig substrate is provided with a plurality of pipe port connecting members and contact detecting members, and a pipe port connecting member having a desired spacing from a plurality of combinations of the pipe port connecting members and contact detecting members. It is preferable that the combination of the contact detection member and the contact detection member be selected. That is, in this case, there is an advantage that a single inspection jig can inspect the positions of a plurality of patterns of meter attachment ports according to the type of gas meter to be installed.

[Brief description of the drawings]

FIG. 1 is a diagram showing an inspection jig that is an embodiment of the present invention, in which FIG. 1 (a) is a plan view and FIG. 1 (b) is a side view.

2A and 2B are views showing an inspection jig of the embodiment, FIG. 2A is a cross-sectional view showing a state in which the jig is connected to one meter mounting port, and FIG. 2B is one meter. Sectional drawing which shows the state which adjusted the position of a mounting port, FIG.6 (c) is sectional drawing which shows the state which adjusted the appropriate position of both meter mounting ports.

FIG. 3 is a front view showing a gas pipe structure that can be inspected by the inspection jig of the embodiment with a gas meter separated.

FIG. 4 is a plan view showing a gas pipe structure that can be inspected by the inspection jig of the embodiment.

5A and 5B are views showing an inspection jig which is a modified example of the present invention, wherein FIG. 5A is a side view, FIG. 5B is a sectional view, and FIG. 5C is a rear view. .

FIG. 6 is a front view showing a gas pipe structure in which a gas meter is installed.

[Explanation of symbols]

 1, 51 ... Jig for inspection 2, 52 ... Jig board 3, 53a, 53b ... Piping port connecting member 3a ... Male screw 4, 54a, 54b, 54c ... Contact detection member 5, 51a, 51b ... Level 10, 10a 10b ... Gas piping 11a, 11b ... Rising part 12a, 12b ... Horizontal part 13a, 13b ... Meter mounting part 20 ... Gas meter 20a, 20b ... Base 30a, 30b ... Union joint (meter mounting port) 31a, 31b ... Collar part 32a , 32b ... Joint body 33a, 33b ... Cap nut

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yama ▲ saki ▼ Yu 2-10-16 Higashikobashi, Higashi-Nari-ku, Osaka Kansai Gas Meter Co., Ltd.

Claims (8)

[Utility model registration claims] 1. An inlet side and an outlet side meter mounting port are arranged side by side in a gas pipe constituted by a plurality of single pipe members so as to open downward at predetermined intervals, while the inlet side and the outlet side When connecting the inflow side and outflow side mouthpieces of the gas meter to the outflow side meter installation port, the jig for inspecting the position of the meter installation port in the gas pipe for inspecting the placement position of the inflow side and outflow side meter installation ports And a jig substrate having a length dimension that is at least longer than the distance between the inflow side and outflow side meter mounting openings, and a level provided on the jig substrate for adjusting the substrate in a horizontal posture. And a pipe port connecting member which is provided on one end side of the jig substrate and is detachably attached to at least one of the inflow side and outflow side meter mounting ports, and the other end side of the jig substrate. To In the state where the pipe port connecting member is connected to one meter mounting port and the jig substrate is horizontally arranged, when both meter mounting ports are arranged at predetermined proper positions, the other meter is mounted. A jig for inspecting the position of a meter mounting port in a gas pipe, comprising a contact detection member that comes into contact with the mounting port. 2. A plurality of single pipe members constituting the gas pipe are screwed and connected between adjacent single pipe members, and the arrangement position of the meter mounting port is adjusted by adjusting the screwing amount. The jig for inspecting the position of the meter mounting port in the gas pipe according to claim 1, wherein the jig is configured to adjust the position. 3. The gas pipe comprises a rising portion arranged vertically so as to rise from the ground, a horizontal portion horizontally arranged so as to extend laterally from an upper end of the rising portion, and a horizontal portion of the horizontal portion. A meter mounting portion that is vertically disposed so as to extend downward from an end portion, and the meter mounting port is provided at a lower end of the meter mounting portion.
A jig for inspecting the position of the meter mounting port in the gas pipe described. 4. The position inspection of the meter mounting port in the gas pipe according to claim 1, wherein the distance between the inflow side and outflow side meter mounting ports is set to 220 mm or more for installing a large gas meter. Jig. 5. The pipe port connecting member is composed of a tubular member having an outer thread engraved on the outer periphery thereof, while the meter mounting port is a generally tubular joint body having a flange portion on the outer periphery thereof. A union joint comprising a cap nut rotatably provided around an outer periphery of the joint body and having an internal thread engraved on the inner periphery of the male thread of the piping port connecting member. The lower portion of the joint main body is inserted into the mouth connecting member, the cap nut is tightened to the pipe mouth connecting member, and the upper end surface of the pipe mouth connecting member is pressed against the flange portion of the joint main body to form the pipe. 5. A port connecting member configured to connect to the meter mounting port.
A jig for inspecting the position of the meter mounting port in the gas pipe according to any one of 1. 6. The jig substrate is provided with a plurality of the pipe port connecting member and the contact detecting member, and a pipe port connecting member having a desired interval from a plurality of combinations of the pipe port connecting member and the contact detecting member, The jig for inspecting the position of the meter mounting port in the gas pipe according to any one of claims 1 to 5, which is configured so that a combination of contact detection members can be selected. 7. The pipe port connecting member and the contact detection member are provided on both front and back surfaces of the jig substrate, and the spirit level is provided on both front and back surfaces of the jig substrate. A jig for inspecting the position of the meter mounting port in gas piping. 8. The pipe port connecting member is provided on one surface side of the jig substrate and one surface side of the back surface, and the contact detection member is the other surface side of the jig substrate and the other surface of the back surface. Side and
The meter mounting port in the gas pipe according to claim 6 or 7, wherein the level is provided at a position closer to the center from the other end of the back surface, and the level is provided at the front surface center and the back surface center of the jig substrate. Jig for position inspection.