JP5455865B2 - Gas meter connection support unit - Google Patents

Description

  The present invention relates to a connection support unit of a gas meter for mounting a small gas meter.

  Some small-sized gas meters having a built-in flow sensor such as an ultrasonic type have a gas inlet and a gas outlet facing downward at the bottom, and in order to mount this small-sized gas meter, Patent Document 1 discloses a support attached to a wall surface. On the left side of the plate, a gas stopper that connects the gas inlet side pipe and the gas meter inlet via a joint, and on the right side of the support plate, a test that connects the gas meter outlet side and the gas outlet side pipe via a joint, respectively. A gas meter mounting unit having a pressure plug has been proposed.

JP 2009-63546 A

  However, even in a small gas meter, the space between the gas inlet and the gas outlet provided at the bottom has a sufficient inlet / outlet pitch, the gas flow path from the gas stopper inlet to the gas inlet of the gas meter, and the gas meter Gas flow paths extending from the gas outlet to the outlet of the pressure detection plug are formed in parallel to each other.

  For this reason, the gas inlet side pipe and the gas outlet side pipe connected to the gas meter from the ground or floor are arranged upright and parallel to each other through the inlet of the gas plug and the outlet of the pressure detecting plug. The inlet / outlet piping pitch of the gas inlet side piping and the gas outlet side piping is large. In this way, when the entrance / exit side piping pitch is large, for example, when the volume in the storage box such as a meter occupies a large area, even when standing up from the ground or floor surface, there is interference with obstacles, design characteristics etc. There is a problem. Further, in the gas meter mounting unit, when the inlet / outlet side piping pitch is made small, it is necessary to add parts such as elbow pipes, and there is a problem that the parts cost increases.

  The present invention solves the above-mentioned problems, and does not increase the cost of parts, and can reduce the piping pitch on the input / output side to the gas meter, and can support the connection of the gas meter that can reduce the size of the piping on the input / output side and improve the design. The purpose is to provide units.

The invention described in claim 1
A gas meter connection support unit of a gas meter in which a gas inlet and a gas outlet are arranged at a bottom with a predetermined inlet / outlet pitch and opened downward,
A gas stopper that opens and closes the gas flow path, a first joint that connects the inlet of the gas stopper and the gas inlet side pipe, and an inlet pipe portion that has a second joint that connects the outlet of the gas stopper and the gas inlet of the gas meter;
An outlet pipe portion having a pressure detection plug for detecting gas pressure, a third joint for connecting the inlet of the pressure detection plug and a gas outlet of the gas meter, and a fourth joint for connecting the outlet of the pressure detection plug and the gas outlet side pipe When,
A support frame portion formed integrally with the gas plug and the pressure detection plug;
A support member for fixing the support frame part to the wall surface or the ground,
The connection shafts of the connection ports of the first joint to the fourth joint are arranged in parallel to each other, and the gas flow path of the gas plug and the gas flow path of the pressure detection plug are connected from the gas meter side to the gas inlet side pipe and the gas outlet side pipe. The inlet and outlet piping pitches of the connection ports of the first joint and the fourth joint are made smaller than the inlet / outlet pitch of the gas meter by inclining them so as to approach each other.

The invention according to claim 2 is the configuration according to claim 1,
The support member is a fixture having a connection portion connected to the support frame portion, an intermediate portion extending from the connection portion to the back side, and an attachment portion connected to the intermediate portion and fixed to the wall on the fixed side. ,
On the back surface of the support frame portion, a support hole portion having an opening through which the connecting portion of the fixture can be inserted from below and having an upper surface closed is integrally formed.

The invention of claim 3 is the configuration of claim 1,
The support member is a column that is erected and fixed on the ground or floor surface on the fixed side,
A support hole having an opening through which the upper end of the support can be inserted from below is integrally formed on the back surface of the support frame.

According to a fourth aspect of the present invention, in the configuration of the second aspect,
While constituting at least a part of the gas inlet side pipe and the gas outlet side pipe from the ground or floor to the first joint and the fourth joint with a flexible pipe, a cover body covering the outer periphery of these flexible pipes is provided,
The cover body is fixed to the wall surface.

According to a fifth aspect of the present invention, in the configuration of the third aspect,
While constituting at least a part of the gas inlet side pipe and the gas outlet side pipe from the ground or floor to the first joint and the fourth joint with a flexible pipe, a cover body covering the outer periphery of these flexible pipes is provided,
The said cover body is fixed to the support | pillar.

  According to the first aspect of the present invention, the gas flow paths of the gas plug and the pressure detection plug formed integrally by the support frame portion are inclined so as to approach the gas inlet side pipe and the gas outlet side pipe side. Thus, the inlet / outlet side piping pitch of the connection port of the first joint and the fourth joint is made smaller than the inlet / outlet pitch of the gas meter, so that the gas inlet side piping connected to the first joint and the fourth joint is not increased in cost. And the gas outlet pipe can be placed close to each other. Therefore, the occupied volume of the gas inlet side piping and gas outlet side piping in the meter storage box can be reduced, and even when starting up outdoors, contact with obstacles can be avoided, and the inlet / outlet piping can be made compact and designed. Can be improved. Further, since the gas stopper and the pressure detecting plug are integrally formed, the number of parts can be reduced, and the gas meter can be newly installed and replaced quickly.

  According to invention of Claim 2, a gas meter can be easily supported on a wall surface via a support frame part with a fixture. In addition, since the fitting is inserted and fixed in the supporting hole whose upper surface is closed, the connecting portion between the fitting and the supporting frame portion can be formed in a simple shape and can be easily cleaned. Moreover, the design property can also be improved.

  According to invention of Claim 3, a small gas meter can be easily supported by a support | pillar. In addition, since the connecting part of the support column is inserted and fixed in the support hole whose upper surface is closed, the connecting part of the support column and the support frame part can be formed in a simple shape, can be easily cleaned, and can be designed. Can also be improved.

  According to the invention described in claim 4 or 5, the cover body can reinforce the strength of the gas inlet side pipe and the gas outlet side pipe and can be held by the wall surface or the support column, and can be prevented from being damaged by external pressure, thereby being safe and beautiful. Can be improved.

It is a front view which shows Example 1 of the connection support unit of the gas meter which concerns on this invention. It is a side part which shows a connection unit part. It is AA sectional drawing shown in FIG. It is BB sectional drawing shown in FIG. (A) And (b) shows the support structure of a gas meter, (a) is a front view, (b) is a side view. (A) And (b) shows Example 2 of the connection support unit of the gas meter which concerns on this invention, (a) is a whole side view which shows the support structure of a gas meter, (b) is C section expansion shown to (a). FIG. It is DD sectional drawing shown to Fig.6 (a).

Embodiments of the present invention will be described below with reference to the drawings.
(Example)
As shown in FIG. 5, the gas inlet side pipe 12 connected to the outdoor side pipe 14 and raised from the ground GL in parallel with the wall surface 40 of the building, and the small gas meter 11 dropped in parallel to the wall surface 40 of the building. The gas outlet side pipes 13 embedded in the ground GL and connected to the indoor side pipes 15 are arranged upright in parallel with each other. The gas inlet side pipe 12 and the gas outlet side pipe 13 are respectively configured by flexible pipes in which a metal corrugated pipe is covered with a resin tube. Here, the inlet / outlet side pipe pitch P1 of the gas inlet side pipe 12 and the gas outlet side pipe 13 is, for example, 70 mm. A cover body 16 covers the outer peripheral portions of the gas inlet side pipe 12 and the gas outlet side pipe 13 and is attached to the wall surface 40.

  As the types of gas pipes of the gas inlet side pipe 12 and the gas outlet side pipe 13 connected to the gas meter 11, a lining steel pipe (PE pipe) is used for a detached house, and a carbon steel pipe (SGP) is used for an apartment house. The

  As shown in FIGS. 1 to 3, the small gas meter 11 has an ultrasonic flow sensor built in a housing 11a, and a gas flow rate display 11b is provided on the front, and the bottom of the housing 11a. A gas inlet 11i is formed downward on the left side, and a gas outlet 11o is formed downward on the right side of the bottom. Here, the inlet / outlet pitch P2 between the gas inlet 11i and the gas outlet 11o is, for example, 130 mm.

  A connection support unit 20 according to the present invention is interposed between the small gas meter 11 and the gas inlet side pipe 12 and the gas outlet side pipe 13. In the connection support unit 20, the gas plug 23 of the inlet pipe portion 21 and the pressure detecting plug 33 of the outlet pipe portion 31 are integrally formed by the main body frame portion 41.

  The inlet pipe section 21 includes a gas plug 23 that opens and closes the inlet gas flow path 26, a first joint 22 that connects the gas inlet side pipe 12 and the inlet of the gas stopper 23, an outlet of the gas stopper 23, and a gas inlet of the gas meter 11. 11i is connected to the second joint 24. The outlet piping section 31 includes a pressure detecting plug 33 that can detect the gas pressure in the outlet gas flow path 36, a third joint 32 that connects the gas outlet 11o of the gas meter 11 and the inlet of the pressure detecting plug 33, and a pressure detecting plug. And a fourth joint 34 for connecting the outlet 33 and the gas outlet side pipe 13.

  As shown in FIG. 5, the first joint 22 is configured by a female screw portion 22 a to which a male screw portion of a pipe joint 12 a for a flexible pipe attached to the outlet of the gas inlet side pipe 12 is mounted. The second joint 24 includes an insertion port 24a fitted to the receiving port 11c formed at the gas inlet 11i of the gas meter 11, and a cap nut 24b fitted to the male screw portion 11d formed at the outer peripheral portion of the gas inlet 11i. It is comprised by the union coupling which has.

  The third joint 32 includes an insertion port 32a fitted to the receiving port 11e formed at the gas outlet 11o of the gas meter 11, and a cap nut 32b fitted to the male screw portion 11f formed at the outer peripheral portion of the gas outlet 11o. It is comprised by the union coupling which has. The fourth joint 34 is constituted by a female thread part 34 a to which a male thread part of a pipe joint 13 a for a flexible pipe attached to the outlet of the gas outlet side pipe 13 is mounted.

  Here, the connecting shafts of the gas inlet 11i and the gas outlet 11o and the connecting shafts of the second and third joints 24 and 32 are coincident with each other, and the connecting shafts O1 to O1 of the first to fourth joints 22, 24, 32 and 34 are provided. O4 are formed in parallel to each other.

In addition, the said 1st-4th couplings 22, 24, 32, and 34 are not limited to each form.
The gas stopper 23 is formed with an inlet side gas passage (gas passage) 26 that connects the first joint 22 and the second joint 24 to the stopper body (main body frame) 25. From the connection port of the two joints 24 to the connection port of the first joint 22, it is inclined downward and inward with respect to the connection axes O1 and O2, for example, at an inlet-side channel inclination angle θ1 = 45 °. On the other hand, the pressure detection plug 33 is formed with an outlet side gas passage (gas passage) 36 connecting the third joint 32 and the fourth joint 34 to the plug body (body frame) 35, and this outlet side gas passage. 36 is, for example, an output side channel inclination with respect to the connection shafts O3 and O4 so that the lower side is closer to the inlet side gas channel 26 of the gas plug 23 from the third joint 32 to the fourth joint 34. It is inclined downward and inside at an angle θ2 = 45 °. Thereby, the inlet / outlet side piping pitch P1 is set smaller than the inlet / outlet pitch P2 of the small gas meter 11, and P1 / P2≈0.54. Here, the inlet and outlet side channel inclination angles θ1 and θ2 are set so that the inlet / outlet side pipe pitch P1 is not too small and troubles such as connection work are caused, and the channel resistance is not increased. , 30 ° ≦ θ1, θ2 ≦ ˜60 °.

  A cylindrical valve chamber 27 is formed in the inlet side gas flow path 26 of the gas plug 23 around the opening / closing axis Oa orthogonally intersecting the inlet side gas flow path 26 in the front-rear direction. A valve element 28 having a valve hole 28a for opening and closing the gas flow path 26 is rotatably disposed via a seal member. Therefore, by rotating the valve body 28 about the opening / closing axis Oa by the opening / closing cock 29, the inlet side gas flow path 26 can be opened / closed by the valve hole 28a.

  A branch channel 37 that is branched forward and perpendicular to the inlet gas channel 26 is formed at an intermediate position of the outlet gas channel 36 of the pressure detection plug 33, and communicates with an inspection port 38 of the plug body 35. Yes. The inspection port 38 is fitted with a closure plug 39 so as to be detachable through a threaded portion.

  In the support frame portion 41, a plug body 25 and a plug body 35 are integrally connected to a plate-like frame body 42 parallel to the wall surface 40 via a back surface portion. Further, in order to fix the support frame portion 41 to the wall surface 40, a mounting block portion 47 is integrally formed on the back side of the frame main body 42, and a mounting plate (supporting member) as a mounting tool is formed on the mounting block portion 47. ) 43 for mounting the support hole 44 is formed. This support hole 44 has an opening into which the mounting plate 43 can be inserted from below and has an upper surface closed. The support hole 44 has a simple appearance and a structure that easily removes dirt. An insertion hole for a connecting bolt 45 for fixing the mounting plate 43 is drilled in the back surface of the mounting block portion 47.

  The mounting plate 43 is inserted into the support hole 44 and has an upright connecting part 43a in which a bolt hole 43d for the connecting bolt 45 is formed, and an inclined part (intermediate) inclined downward from the connecting part 43a. Part) 43b and a mounting part 43c fixed to the wall surface 40 bent in an upright direction from the inclined part 43b, and the bolt hole of the anchor bolt 46 for fixing the wall surface is formed in the mounting part 43c.

  According to the above embodiment, the inlet side gas passage 26 of the gas plug 23 and the outlet side gas passage 36 of the pressure detection plug 33 which are integrally formed by the support frame portion 41 are connected to the gas inlet side pipe 12 and the gas outlet side. The pipe 13 is inclined so as to approach the pipe 13 side, and the inlet / outlet side pipe pitch P1 of the first joint 22 and the fourth joint 34 is set to the gas inlet 11i and the gas outlet 11o of the gas meter 11 (second joint 24 and third joint 32). Therefore, the gas inlet side pipe 12 and the gas outlet side pipe 13 can be arranged close to each other without increasing the component cost. Therefore, the occupied volume in the storage box such as a meter can be reduced. Further, since the gas plug 23 and the pressure detecting plug 33 are integrally formed, the number of parts can be reduced and the gas meter 11 can be newly installed and replaced quickly.

  Further, the small gas meter 11 can be easily fixed to the wall surface 40 by the mounting plate 43. Further, since the connecting portion of the mounting plate 43 is inserted and fixed in the support hole 44 whose upper surface is closed, the connecting portion can be easily cleaned with a simple shape.

  Furthermore, by covering the gas inlet side pipe 12 and the gas outlet side pipe 13 with the cover body 16 attached to the wall surface 40, the strength of the gas inlet side pipe 12 and the gas outlet side pipe 13 made of flexible pipes can be reinforced by the support columns. Safety and aesthetics can be improved by preventing damage due to external pressure.

(Example 2)
As shown in FIGS. 6 and 7, the support member is replaced with a mounting plate 43 and is a support column 53 that is erected and fixed to the ground GL. Note that the same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  That is, an attachment block 51 is formed on the back surface of the frame main body 52, and the upper end of a column (support member) 54 that supports the connection support unit 20 on the ground GL is inserted into the attachment block 51. A supporting hole 52 to be fixed is formed. The support hole 52 has an opening that can be inserted from below and is closed to the upper surface, thereby forming a structure that is simple in appearance and easy to remove dirt. Further, the mounting block 51 is protruded to the back side, and the gas inlet side pipe 12 and the gas outlet side pipe 13 and the column 53 are arranged at a predetermined interval L, whereby the gas inlet side pipe 12 and the gas outlet side are arranged. The support column 53 is configured not to interfere with the pipe 13 during work such as connection. A cover body 16 that covers the gas inlet side pipe 12 and the gas outlet side pipe 13 is attached to the support column 53.

  According to the second embodiment, the small gas meter 11 can be easily supported by the support column 53, can be prevented from coming into contact with an obstacle, can be installed in a compact manner, and the connection piping structure and support of the gas meter 11 having excellent design properties. Structure can be provided. Further, since the upper end portion of the column 53 is fitted into the support hole 52 formed in the attachment block unit 51 of the contact support connecting unit 20 and fixed by the connecting bolt 45, the column 53, the support frame unit 41, The connecting portion can be formed in a simple shape, can be easily cleaned, and the design can be improved.

  Further, by covering the gas inlet side pipe 12 and the gas outlet side pipe 13 with the cover body 16 fixed to the column 53, the gas inlet side pipe 12 and the gas outlet side pipe 13 can be reinforced and supported by the column 53. In addition, it is possible to prevent the gas inlet side pipe 12 and the gas outlet side pipe 13 from being damaged by the external pressure, thereby improving safety and aesthetics.

  In Examples 1 and 2, the gas inlet side pipe 12 and the gas outlet side pipe 13 are started up from the ground GL, but may be started up from the floor of an apartment house or the like.

P1 Inlet / outlet piping pitch P2 Inlet / outlet pitch GL Ground θ1 Inlet channel inclination angle θ2 Outlet channel inclination angle 11 Small gas meter 11i Gas inlet 11o Gas outlet 12 Gas inlet side pipe 13 Gas outlet side pipe 16 Cover body 20 Connection support unit 21 Inlet piping section 22 First joint 23 Gas plug 26 Inlet gas flow path (gas flow path)
31 Outlet piping section 32 Third joint 33 Pressure detection plug 34 Fourth joint 36 Outlet gas flow path (gas flow path)
39 Closure plug 40 Wall surface 41 Support frame part 42 Frame body 43 Mounting plate (support member)
44 Supporting hole 45 Connecting bolt 46 Anchor bolt 47 Mounting block 51 Mounting block 52 Supporting hole 53 Post (supporting member)

Claims (5)

A gas meter connection support unit of a gas meter in which a gas inlet and a gas outlet are arranged at a bottom with a predetermined inlet / outlet pitch and opened downward,
A gas stopper that opens and closes the gas flow path, a first joint that connects the inlet of the gas stopper and the gas inlet side pipe, and an inlet pipe portion that has a second joint that connects the outlet of the gas stopper and the gas inlet of the gas meter;
An outlet pipe portion having a pressure detection plug for detecting gas pressure, a third joint for connecting the inlet of the pressure detection plug and a gas outlet of the gas meter, and a fourth joint for connecting the outlet of the pressure detection plug and the gas outlet side pipe When,
A support frame portion formed integrally with the gas plug and the pressure detection plug;
A support member for fixing the support frame part to the wall surface or the ground,
The connection shafts of the connection ports of the first joint to the fourth joint are arranged in parallel to each other, and the gas flow path of the gas plug and the gas flow path of the pressure detection plug are connected from the gas meter side to the gas inlet side pipe and the gas outlet side pipe. A connection support unit for a gas meter, wherein the pipes are inclined so that they are closer to each other so that the inlet / outlet piping pitch of the connection port of the first joint and the fourth joint is smaller than the inlet / outlet pitch of the gas meter. The support member is a fixture having a connection portion connected to the support frame portion, an intermediate portion extending from the connection portion to the back side, and an attachment portion connected to the intermediate portion and fixed to the wall on the fixed side. ,
2. The gas meter according to claim 1, wherein a support hole portion having an opening through which the connecting portion of the fixture can be inserted from below and having a closed top surface is integrally formed on the back surface of the support frame portion. Connection support unit. The support member is a column that is erected and fixed on the ground or floor surface on the fixed side,
The gas meter connection according to claim 1, wherein a support hole having an opening through which the upper end of the support can be inserted from below is integrally formed on the back surface of the support frame. Support unit. While constituting at least a part of the gas inlet side pipe and the gas outlet side pipe from the ground or floor to the first joint and the fourth joint with a flexible pipe, a cover body covering the outer periphery of these flexible pipes is provided,
The gas meter connection support unit according to claim 2, wherein the cover body is fixed to a wall surface. While constituting at least a part of the gas inlet side pipe and the gas outlet side pipe from the ground or floor to the first joint and the fourth joint with a flexible pipe, a cover body covering the outer periphery of these flexible pipes is provided,
The gas meter connection support unit according to claim 3, wherein the cover body is fixed to a support column.

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