JP4965204B2 - Gas meter support device - Google Patents

Description

  The present invention relates to a gas meter support device for supporting a gas meter.

  In general, a membrane gas meter is attached to a steel pipe gas pipe erected from the ground outdoors in a detached house, and a flexible pipe (gas pipe) arranged on an indoor pipe shaft in an apartment house. . The membrane gas meter used here has a function of automatically shutting off the gas supply when a disaster occurs. For example, microcomputers that automatically shut off gas supply when an earthquake occurs are frequently used. On the other hand, as for gas pipes, almost all flexible pipes (gas pipes) are used in apartment houses, etc., and even in the pipes of detached houses, flexible pipes (gas pipes) are used for downstream pipes. I came. From such a background, the structure shown in FIGS. 11 to 13 is disclosed for a gas meter support device.

  In the apparatus main body of the gas meter support apparatus 101 shown in FIG. 11, the inflow pipe 102 and the outflow pipe (not shown) have an inverted U shape so that both end portions face downward, and both end portions are support plates. The support plate 112 is arranged and fixed in a state of being positioned below the support plate 112. The inlet part Ma of the gas meter M is connected and fixed to the end part 129 of the inflow pipe 102, and the outlet part of the gas meter M is connected and fixed to the opening part of the end part of the outflow pipe (not shown). A flexible gas pipe F1 is connected to the opening of the end 123 of the inflow pipe 102 by a known connection mechanism 104. Similarly, a known connection is connected to the opening of the end of the outflow pipe (not shown). The flexible gas pipe F1 is connected by the mechanism. Furthermore, a rear groove 128 for fitting the rear side edge portion of the support plate 112 is formed at the end 123 of the inflow pipe 102 (Patent Document 1).

  Further, in the gas meter connection joint 201 shown in FIG. 12, the joints 202 and 202 are provided so that the load of the gas meter B is received by the bracket 211, and the left and right joints 202 and 202 are horizontally arranged according to the type (size) of the gas meter B. The joints 202 and 202 are rotated in the first direction (the joints 202 and 202 are positioned along the side surfaces 213d and 213d) or the second position (the joints 202 and 202 are positioned along the side surfaces 213c and 213c). The gas meter connection ports 221 and 221 of the joints 202 and 202 are connected to the inlet 205 and outlet 206 of the gas meter B to be installed through cap nuts 224 and 224, respectively. And the gas piping connection ports 222 and 222 of the joints 202 and 202 and the upper ends of the rising pipes 207 and 208 are connected by flexible pipes 209 and 210 (Patent Document 2).

Further, in the gas meter mounting device shown in FIG. 13, the spacer 340 is fixed at a predetermined position of the wall surface W of the structure S such as a house outdoor wall, and the mounting bracket 330 is fixed to the spacer 340. The inlet and outlet pipe joints 350a and 350b are inserted into the inlet and outlet support holes 332a and 332b of the mounting bracket 330, and connected to one end of the U vent pipes 360a and 360b, and the pipe joints 350a and 350b and the U vent are connected. The tubes 360a and 360b are fixed to the mounting bracket 330. In addition, the inlet and outlet caps 311a and 311b of the gas meter 310 are connected to the inlet and outlet pipe joints 350a and 350b. On the other hand, the inlet and outlet flexible pipes 320, 320 are connected to the other ends of the U vent pipes 360 a, 360 b through pipe joints or the like, and the flexible pipes 320, 320 are connected to the gas meter 310 on the back side of the gas meter 310. And the structure wall surface W are arranged along the wall surface W (Patent Document 3).
JP 2000-46620 (paragraphs 0008, 0009, 0014, FIG. 1) JP-A-11-51736 (paragraphs 0007 and 0024, FIG. 1) JP 10-253419 (paragraphs 0023 to 0028, 0030, FIG. 3)

  However, the supporting devices for the gas meters (gas meter M, gas meter B, gas meter 310) shown in FIG. 11 to FIG. 13 are intended for membrane gas meters and firmly fix a relatively large and heavy gas meter. . When the gas meter is installed, the gas meter support apparatus shown in FIGS. 11 to 13 uses a flexible flexible pipe (flexible gas pipe F1, flexible pipe 209, flexible pipe 320) while using the gas meter (gas meter). M, gas meter B, gas meter 310) can only be supported from above.

  That is, since the gas inlet / outlet (gas meter inlet, gas meter outlet) of the gas meter (gas meter M, gas meter B, gas meter 310) is provided exclusively upward, as shown in FIGS. 11 to 13, the gas meter (gas meter M, gas meter) is provided. B, gas pipes must be extended upwards so as to surround the gas meter 310), and the gas pipes are wound around the gas meter, and the gas pipes are aesthetics of ordinary houses including detached houses and apartment houses. Had the potential to damage. Therefore, from the aesthetics when the gas meter is installed in a general house, it has been studied to provide a gas meter gas inlet / outlet (gas meter inlet, gas meter outlet) below.

  On the other hand, an ultrasonic gas meter has recently been developed and is expected to be about 1/3 the size of a conventional membrane gas meter. Therefore, along with the realization of the gas meter, the gas meter support that can support the gas meter even if the gas inlet / outlet (gas meter inlet, gas meter outlet) of the gas meter is in any direction, as well as being smaller and more aesthetic. A device is sought.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a small-sized gas meter support device that can support the gas meter regardless of whether the gas inlet / outlet of the gas meter is in the vertical direction.

To achieve the above object, one end of the flexible tube connection for connecting the flexible tube is provided, the gas inlet portion for introducing the gas provided to the gas meter at the other end, the said flexible pipe connecting portion Gas introduction port member provided in a direction in which the gas introduction port intersects, a flexible tube connection part for connecting the flexible tube at one end, and a gas outlet port for deriving gas from the gas meter at the other end A gas outlet pipe member provided in a direction in which the flexible pipe connecting portion and the gas outlet port cross each other, and the gas inlet pipe member and the gas outlet pipe member are supported, and the gas inlet pipe A member and a member for fixing the gas lead-out pipe member to the housing, comprising a support member and a connecting member, wherein the support member includes the gas introduction pipe member and the gas lead-out pipe member A fixing bracket having two arc frame portions to be supported and fixed and a plate-like member disposed so as to close the arc frame portion is provided, and the connecting member bends the end side of the connecting member into a substantially L shape. A plurality of small hole portions provided in two rows, and a plurality of small hole portions are appropriately selected and overlapped, and the two arc frame portions of the support member overlapped with each other. And an adjustment portion that incorporates and fixes the fixing member into the small hole portion from the through groove on the opposite side, and extends by being connected to the flexible pipe connecting portion of the gas introduction pipe member and / or the gas outlet pipe member. A flexible tube support that supports the contraction side of the flexible tube, which is inside the bent portion of the flexible tube, is attached, and in the flexible tube support, the annular portion of the flexible tube support is an outer periphery of the flexible tube connection portion. External fitting The hollow tube-shaped first support portion having the annular portion of the flexible tube support member supports the flexible tube extending from the flexible tube connection portion and the flexible tube connection portion, and the flexible bent portion. The bend side of the flexible tube is supported without further deformation so that the contraction side that is the inner side of the flexible tube support unit is combined with the first support unit along the bent portion of the second support portion of the flexible tube support tool. It is characterized by that.

  Therefore, according to the first aspect of the present invention, the flexible pipe is connected to one end of the gas introduction pipe member and the gas lead-out pipe member, and the gas meter inlet for introducing the gas and the gas are led out to the other end of the gas meter. Because the gas inlet port and the gas outlet port are connected to the gas meter outlet and the gas inlet tube member and the gas outlet tube member are supported and fixed by fixing brackets, the gas meter support device is simplified and miniaturized. In addition, it is possible to facilitate the installation work of the gas meter with respect to the housing which is a structure including a building.

In addition, since the flexible pipe connecting portion and the gas introduction port portion of the gas introduction pipe member are provided in a direction intersecting with each other, it is possible to reduce the size of the gas introduction pipe member itself, and the gas meter of the gas meter. Even if the inlet and the gas meter outlet are provided on the upper side or the lower side of the gas meter, it is possible to connect the gas meter inlet and the gas inlet port of the gas meter.

Furthermore, since the flexible pipe connecting portion and the gas outlet port of the gas outlet pipe member are provided in a direction intersecting with each other, it is possible to reduce the size of the gas outlet pipe member itself, and the gas meter of the gas meter. Even if the inlet and the gas meter outlet are provided on either the upper side or the lower side of the gas meter, the gas meter outlet and the gas outlet port of the gas meter can be connected.

In addition, the flexible tube support tool includes an extended portion of the flexible tube that is outside the bent portion of the flexible tube that is connected to the flexible tube connection portion, and a contracted portion that is inside of the contracted portion of the flexible tube that is inside. Since the inner radius R of the flexible tube set by the flexible tube support (the diameter at which the flexible tube is bent) is regulated, the flexible tube is further bent to prevent the flexible tube from being crushed. It is possible to prevent the flexible tube from being damaged by bending.

The fixing bracket is composed of a connecting member for fixing to the housing, and a support member for positioning (fixing) and fixing the gas introduction pipe member and the gas outlet pipe member. It is a member, and the connecting member is composed of an attachment portion and an adjustment portion. The attachment portion is a portion bent in a substantially L shape on the end side of the connecting member, and has a shape that is easy to follow along the wall surface of the housing so as to be easily fixed to the wall surface of the housing. A plurality of small hole portions are provided in two rows in the adjustment portion that is continuous with the mounting portion. The support member is a plate-like member that can overlap with the adjustment portion of the connecting member. When the support member is overlapped with the adjustment portion, a through groove is formed at the position of the support member corresponding to the plurality of small holes in two rows of the adjustment portion. The adjustment portion of the connecting member is overlapped on the lower surface side of the support member, and bolts, nuts, etc., which are fixing members are assembled and fixed to the small holes of the adjustment portion from the through grooves of the support member. Considering the environment in which the gas meter is installed, for example, depending on the situation such as the wall surface of the housing, it may be necessary to install the gas meter away from the wall surface of the housing. In preparation for such a case, the adjustment plate is provided with a plurality of small hole portions in two rows, and the small hole portions are appropriately selected and fixed by the through groove and the fixing member of the support member.

The flexible tube support tool includes a first support portion that is one semi-cylindrical member having an annular portion and fitted to a flexible tube connection portion of a gas introduction tube member (gas outlet tube member), and a flexible tube bent. And a second support portion which is another semi-cylindrical member for supporting the portion. The annular portion has a size (diameter) that can be externally fitted to the outer periphery of the flexible tube connecting portion. When the annular portion is externally fitted to the outer periphery of the flexible tube connecting portion, the first support portion of the flexible tube support is connected to the flexible tube connecting portion. The flexible tube extending from there will be supported. That is, since the flexible tube is supported along the direction regulated by the first support portion and the bending force of the flexible tube is not applied to the flexible tube connection portion, there is no possibility of causing gas leakage from the flexible tube connection portion. The second support portion of the flexible tube supporter supports the contraction side that is the inside of the bent portion. Since the bent portion of the flexible tube supports the contraction side that is easily bent, the contraction side is further contracted (further bent) to prevent deformation of the diameter of the flexible tube and to support in a state where the diameter is maintained. Since it becomes possible, it is possible to ensure the gas flow in the bent portion of the flexible tube.

Moreover, in addition to the structure of Claim 1, invention of Claim 2 is the said flexible pipe connection part. A packing member that seals the outer peripheral surface of the flexible tube on an inner wall that faces the tube, and a retainer member that has an engaging portion that engages with a concave portion of the outer peripheral surface of the flexible tube.

Therefore, according to the second aspect of the present invention, when a flexible pipe having an accordion-like outer peripheral surface is inserted into the flexible pipe connecting portion, the packing member on the inner wall of the flexible pipe connecting portion is formed of the flexible pipe. It is possible to ensure sealing performance because it comes into pressure contact with the outer peripheral surface, and the retainer on the inner wall of the flexible pipe fits into the concave part of the flexible pipe, and this part can be firmly pressed and fixed become. In addition, when the flexible pipe connection part is incorporated in the gas introduction pipe line, a connection mechanism for connecting the flexible pipe connection part and the gas introduction pipe line is not required, so that gas leakage from the gas introduction pipe member is possible. It is possible to reduce the performance and to simplify the gas introduction pipe member.

Furthermore, in addition to the structure of Claim 1 or 2, the invention of Claim 3 is a gas introduction pipe line which connects the said flexible pipe connection part and the said gas introduction port part to the said gas introduction pipe member. And a gas plug insertion portion is formed in the gas introduction pipe line, and the gas plug insertion portion is rotatably accommodated on a tapered truncated cone-shaped plug sliding surface formed in the gas plug insertion portion. Further, a plug having a gas flow hole for flowing gas, a handle disposed at an end of the gas plug insertion portion, engaged with the plug and rotating the plug, and the plug An urging member that urges the body toward the gas plug insertion portion, the gas plug insertion portion including a handle housing portion formed so as to be opened in an end direction, and an inner surface of the handle housing portion. An annular inner groove formed on the handle, and the handle is compatible with the handle accommodating portion. A key arrangement groove formed in the center on the side to be inserted into the key arrangement groove, and the gas plug insertion portion and the handle can be rotated by arranging both end portions in the annular groove. And a handle key connected to the main body .

Therefore, according to the third aspect of the present invention, the gas plug insertion portion includes a plug body having a gas flow hole on the sliding surface of the tapered truncated conical surface, and biases the plug body to the gas plug insertion portion. A handle for engaging the plug body and rotating the plug body is disposed at the end of the gas plug insertion portion, and the handle is rotatable at the end of the gas plug insertion portion. Since it is connected to the end of the insertion part, a connection mechanism for connecting the gas stopper mechanism part to the gas stopper insertion part is not required when the gas stopper mechanism part is incorporated into the gas stopper insertion part. It is possible to reduce the possibility of gas leakage from the introduction pipe member, and to simplify the gas introduction pipe member.

The handle key is entirely inserted into the key arrangement groove of the handle, and both ends thereof are arranged in the annular inner groove in the handle accommodating portion (inner recess). In this state, the handle key is pushed upward by receiving the urging force of the coil spring, and the upper end edge of the handle key hits the upper end surface of the annular inner groove. As a result, the handle and the plug body cannot be rotated relative to each other, and the handle and the gas plug insertion portion including the handle housing portion (inner recess) are rotatably connected via the handle key. When the handle rotates, the handle key hits and slides on the upper end surface of the annular inner groove in the handle accommodating portion (inner recess). On the other hand, the biasing force of the coil spring is applied to the plug body, so that the outer peripheral surface of the plug body is in close contact with the sliding surface of the plug body and maintains the sealing performance.

According to a fourth aspect of the present invention, in addition to the structure according to any one of the first to third aspects, the gas outlet pipe member communicates with the flexible pipe connecting portion and the gas outlet port portion. A lead-out line and a pressure-sensing pipe branched from the gas lead-out line are formed, and the pressure-sensing valve body disposed in the pressure-sensing pipe line is in contact with the pressure-sensing pipe line And a pressure detecting valve seat that is separated from the pressure detecting valve seat and a biasing member that biases the pressure detecting valve body toward the pressure detecting valve seat.

Therefore, according to the fourth aspect of the present invention, the pressure detection valve body is arranged in the pressure detection pipe line, and the pressure detection valve body is biased by the biasing member (coil spring), thereby The pressure detection valve body can be brought into contact with and separated from the pressure detection valve seat. In addition, when incorporating the pressure detection plug into the pressure detection line, a connection mechanism for connecting the pressure detection plug and the pressure detection line is not required, thereby reducing the possibility of gas leakage from the gas outlet pipe member. This makes it possible to simplify the gas outlet pipe member.

  According to the present invention, the flexible pipe connecting portion, the gas stopper mechanism, and the pressure detection plug are integrated with the gas introduction pipe member and the gas outlet pipe member without providing a connection mechanism for the gas introduction pipe member and the gas outlet pipe member. Since it is incorporated, the entire gas meter support device can be reduced in size, and since there is no connection mechanism, the number of parts can be reduced and gas leakage can be easily prevented. In addition, when the gas inlet / outlet of the gas meter is provided on either the upper side or the lower side of the gas meter, the flexible pipe connecting portion of the gas introduction pipe member and the gas outlet pipe member intersects with the gas plug mechanism and the pressure detection plug. The gas meter can be easily supported because it is provided in the direction in which the gas meter is provided. Furthermore, since the bent portion of the flexible tube is supported by the flexible tube support tool, it is possible to prevent the flexible tube from further bending and the flexible tube from being crushed and obstructing the gas flow. Further, since the gas meter support device is lightweight and small, it can be manufactured at low cost and the gas meter can be easily installed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Example 1)
As shown in FIG. 1, a gas meter support device 1 according to the present invention includes a gas introduction pipe member 2, a gas outlet pipe member 3, and a fixture 4. A gas meter 10 (in this example, an ultrasonic gas meter is used). Support. In the gas meter 10 in this example, a gas meter inlet 10 a for introducing gas and a gas meter outlet 10 b for deriving gas are provided on the upper side of the gas meter 10. In this example, gas is introduced into the gas meter inlet 10a of the gas meter 10 using the flexible tube 12, and gas is derived from the gas meter outlet 10b using the flexible tube 12. Therefore, a flexible pipe 12 is connected to the flexible pipe connecting portion 6 at one end of the gas introduction pipe member 2 and the gas outlet pipe member 3 of the gas meter support device 1, and the gas meter inlet 10 a and the gas meter outlet of the gas meter 10 are connected to the other end. A gas inlet port 5 and a gas outlet port 7 for connection to 10b are provided.

  The gas introduction pipe member 2 is provided with a flexible pipe connection portion 6 for connecting to the flexible pipe 12 at one end, and a gas connected to the gas meter inlet 10a of the gas meter 10 which is an inlet for introducing gas into the gas meter 10 at the other end. An introduction port 5 is provided. Specifically, as shown in FIG. 2, the gas introduction pipe member 2 branches from the gas introduction pipe line 2a and the gas introduction pipe line 2a communicating the flexible pipe connection portion 6 and the gas introduction port portion 5 with each other. It is formed by a gas plug insertion portion 2b incorporating the gas plug mechanism portion 8. A gas flow path 2c is formed in the gas introduction pipe line 2a communicating the flexible pipe connection part 6 and the gas introduction port part 5, and gas can be distributed from the flexible pipe connection part 6 to the gas introduction port part 5. It has become. Further, the gas flow path 2c extends to the gas plug insertion portion 2b, and the gas from the flexible pipe connection portion 6 can also flow to the gas plug insertion portion 2b.

  Details of the gas introduction pipe member 2 are shown in FIG. The flexible pipe connecting portion 6 provided at one end of the gas introduction pipe member 2 (the gas introduction pipe line 2a) is a joint in which an inner wall surface is formed in a stepped shape for inserting the flexible pipe 12 and an insertion hole 621 is provided. It is comprised by the part 62 and the ring-shaped nut member 61 in which the insertion hole 611 was formed in the center. The sliding portion 612 of the nut member 61 is fitted to the distal end of the joint portion 62 so as to be slidable along the longitudinal direction thereof, and a circular ring is formed at the joining step portion of the outer peripheral surface (sliding portion 612). An O-ring 63 made of an elastic body is interposed.

  A packing 64 made of a circular ring-shaped elastic body is mounted along the circumferential direction on the inner peripheral surface on the tip end side of the nut member 61, and a ring-shaped cross section is formed on the outer peripheral surface side of the nut member 61. A rectangular groove 613 is formed, and a C-shaped stop ring member 65 is accommodated in the groove 613. The stop ring member 65 is formed of, for example, spring steel having a circular cross section, and is accommodated in the groove portion 613 in a compressed state by reducing the diameter (in this state, the stop ring member 65 expands in diameter). Act on).

  A packing member 67 is provided on the step portion 622 on the inner wall of the joint portion 62. As shown in FIG. 3, these packing members 67 are provided with an airtight packing 671 made of a circular ring-shaped elastic body and a fireproof packing 672 made of a circular ring-shaped elastic body connected to the tip end side. It has been. In this example, NBR (nitrile rubber) is used for the airtight packing 671, but fluororubber or the like can also be used. In this example, the fireproof packing 672 uses an elastic body in which expanded graphite and NBR are integrally molded. However, it is also possible to integrally mold expanded graphite and a rubber material other than NBR.

  A ring-shaped stopper member 68 is provided between the packing member 67 and the step 622 on the inner wall of the joint member, as shown in FIG. In this example, the stopper member 68 is formed of a metal having elasticity so that it can be recognized that a flexible tube (not shown) has been inserted to a predetermined position, but if it can have elasticity, it is a resin. Also good. A ring-shaped elastically expandable / retractable retainer member 66 is provided between the nut member 61 and the packing member 67. The retainer member 66 is formed of a brass material in this example, but may be formed of a metal such as a stainless steel material, or may be formed by joining a resin and a metal. The retainer member 66 includes a front collar portion 661 and a plurality of rear protrusions 662 that come into contact with the end face of the fireproof packing when the nut member 61 is pushed. Each of the rear protrusions 662 can be expanded and contracted in the radial direction with the ring-shaped front collar 661 as a fulcrum.

  An end portion of the nut member 61 is formed with a slip prevention taper surface 614 that is inclined at a predetermined angle along the tip direction. The slip prevention taper surface 614 contacts the rear projection 662 of the retainer member 66 and the rear projection. 662 can be locked to a concave portion of a flexible tube (not shown) having irregularities. Further, a stop ring housing recess 623 is formed on the inner wall of the joint 62 before the nut member 61 is pushed in, and a stop is provided between the stop ring housing recess 623 and the groove 613 of the nut member 61 facing the stop ring housing recess 623. A ring member 65 is accommodated. A tapered surface 624 is formed adjacent to the stop ring housing recess 623, and a stop ring holding step 625 is formed on the inner wall of the joint portion 62 at a position away from the tapered surface 624, and a nut member 61 is fixed.

  Further, in the gas introduction port portion 5 communicating with the flexible pipe connection portion 6 and the gas introduction pipe line 2a, the gas meter inlet 10a of the gas meter 10 is connected to the outer peripheral surface 51 of the gas introduction port portion 5 as shown in FIG. Therefore, a convex portion 54 that can be connected to the cap nut 14 is formed. Further, a groove portion 52 is provided in the convex portion 54 of the outer peripheral surface 51 of the gas introduction port portion 5, and a metal ring 53 is fitted on the groove portion 52. Inside the gas inlet port portion 5, a tapered surface 56 is formed that increases in diameter toward the end portion of the gas inlet port portion 5. An opening 55 is formed continuously with the tapered surface 56. In FIG. 2, a cap nut 14 for connecting the gas introduction port 5 and the gas meter inlet 10 a of the gas meter 10 is shown. A female screw portion is formed on the inner peripheral surface of the cap nut, and the connection between the gas introduction port portion 5 and the gas meter inlet 10a (the male screw portion) of the gas meter 10 is made possible.

  Further, in the gas plug insertion portion 2b provided in the gas introduction pipe line 2a of the gas introduction pipe member 2, as shown in FIG. 2, a tapered cone is formed on the inner wall of the gas plug insertion portion 2b in order to provide the gas plug mechanism portion 8. A table-like plug sliding surface 81 is formed. At the end of the gas plug insertion portion 2b adjacent to the stopper sliding surface 81, a handle storage portion 84 (inner recess) opened in the direction of the end of the gas plug insertion portion 2b is formed. An annular inner groove 83 is formed on the inner surface of the handle storage portion 84 (inner recess). A slit hole 84a (see FIG. 4 (a)) connected to the annular inner groove 83 is formed on the handle storage portion 84 (inner recess) side of the gas plug insertion portion 2b, and the notch is cut in an arc shape. A notch step 84b is formed. The slit hole 84a is formed in such a size that the handle key 85 can be inserted therethrough.

  As shown in FIG. 2, a plug body 86 is rotatably housed inside the plug body sliding surface 81 of the gas plug insertion portion 2b. The outer peripheral surface 86 a of the plug 86 is in close contact with the plug sliding surface 81. The plug body 86 is formed with a gas flow hole 861 penetrating the side surface. When the gas flow hole 861 is aligned with the gas flow path 2c of the gas plug insertion portion 2b, gas flows (gas flows from the flexible pipe connection portion 6 to the gas introduction port portion 5). When the gas flow path 2c is disengaged, the gas flow is blocked (the state shown in FIG. 2). A protrusion 862 is formed on the upper end surface of the plug body 86. A recess 863 is formed around the protrusion 862 on the upper end surface of the plug 86. In the gas stopper assembly state, a coil spring 87 that is an elastic body is disposed around the protrusion 862, and the lower end of the coil spring 87 hits the recess 863.

  The handle key 85 is a band plate-like member, and the handle 88 is rotatably connected to the gas plug insertion portion 2b. In the gas stopper assembly state, both ends of the handle key 85 are disposed in the annular inner groove 83 of the handle storage portion 84 (inner recess), but the length of the handle key 85 is longer than the diameter of the annular inner groove 83. Since the end face 85a (see FIG. 4A) of the handle key 85 does not hit the end face (groove bottom face) of the annular inner groove 83, the gap s is secured between them (see FIG. 2). A locking projection (locking portion) 851 is formed on a part of the side surface of the handle key 85. In the gas stopper assembly state, the locking projection 851 is locked to the locking notch 887 of the handle 88 shown in FIG. Since the locking projection 851 is locked to the locking notch 887, it is possible to prevent the handle 88 and the handle key 85 from being separated after the gas stopper is assembled.

  A handle 88 is attached to the handle accommodating portion 84 (inner recess). On the upper surface of the handle 88, a mark 88a for identifying the opening / closing position of the plug 86 is formed. As shown in FIG. 2, a circumferential groove 882 is dug in the outer peripheral edge on the lower surface side of the handle 88, and a part of the circumferential groove 882 is protruded as shown in FIG. 4 (b). A portion 888 is formed. The convex portion 888 hits both end faces 84c and 84d (see FIG. 4A) of the notch step portion 84b of the handle housing portion 84 (inner concave portion), so that the rotation range of the handle 88 together with the plug 86 is limited. The As shown in FIG. 2, an annular groove 884 is dug into the protrusion 883 (inside the circumferential groove 882) at the center portion on the lower surface side of the handle 88. A plug engaging hole 885 a that engages with the protrusion 862 of the plug body 86 is formed in the middle protrusion 885 inside the annular groove 884. A part of the bottom surface of the annular groove 884 is formed at predetermined intervals, and the remaining part is a convex seat 884a. In the assembled state of the gas stopper, the upper end of the coil spring 87 hits the convex seat 884a.

A slit hole 881 for passing the handle key 85 is formed in a part of the side surface of the handle 88, and the handle key 85 is arranged in a key arrangement groove 886 formed in the protrusion 883 of the handle 88. The handle key 85 is entirely inserted into the key arrangement groove 886 of the handle 88 and both ends thereof are arranged in the annular inner groove 83 in the handle accommodating portion 84 (inner recess). In this state, the handle key 85 receives the urging force of the coil spring 87 and is pushed upward, and the upper end edge of the handle key 85 hits the upper end surface of the annular inner groove 83. As a result, the handle 88 and the plug 86 cannot be rotated relative to each other, and the handle 88 and the gas plug insertion portion 2 b including the handle accommodating portion 84 (inner recess) are rotatably connected via the handle key 85. Is done. When the handle 88 rotates, the handle key 85 hits and slides against the upper end surface of the annular inner groove 83 in the handle accommodating portion 84 (inner recess).
On the other hand, when the biasing force of the coil spring 87 is applied to the plug body 86, the outer peripheral surface 86a of the plug body 86 is brought into close contact with the plug body sliding surface 81 to maintain the sealing property.

  The gas introduction pipe line 2a of the gas introduction pipe member 2 and the gas plug insertion portion 2b provided in the gas introduction pipe line 2a are configured as described above. Further, the gas meter support device 1 can be reduced in size, and can be connected to the gas inlet 5 regardless of whether the gas inlet (gas meter inlet 10a) of the gas meter 10 is provided on the upper side or the lower side of the gas meter 10. Therefore, the flexible pipe connecting portion 8 and the gas introduction port portion 5 of the gas introduction pipe member 2 are provided in the intersecting direction along the longitudinal direction of the gas introduction pipe member 2 as shown in FIG. Yes. In particular, in this example, the flexible tube connecting portion 6 and the gas introduction port portion 5 are provided in the orthogonal direction along the longitudinal direction of the gas introduction tube member 2. In this example, the gas stopper mechanism 8 is built in so as to face the flexible tube connecting portion 6. However, the gas stopper mechanism portion 8 is not limited to being incorporated so as to face the flexible pipe connecting portion 6, and can be incorporated facing the gas introduction port portion 5, for example.

  Next, the gas outlet pipe member 3 will be described. The gas outlet pipe member 3 is provided with a flexible pipe connecting portion 6 for connecting to the flexible pipe 12 at one end, and a gas connected to the gas meter outlet 10b of the gas meter 10 which is an outlet for leading the gas from the gas meter 10 at the other end. A lead-out port 7 is provided. Specifically, as shown in FIG. 5, the gas lead-out pipe member 3 branches from the gas lead-out pipe line 3a and the gas lead-out pipe line 3a communicating with the flexible pipe connecting portion 6 and the gas lead-out port portion 7. And a pressure detection line 3b having a pressure detection plug 9 therein. In the gas outlet pipe 3 a that communicates the flexible pipe connecting part 6 and the gas outlet part 7, the gas flow path 3 c is formed, and the gas flows from the gas outlet part 7 to the flexible pipe connector 6. It is possible. Further, the gas flow path 3c extends to the pressure detection pipe line 2b, and the gas from the gas outlet 7 can also flow to the pressure detection pipe line 3b.

  Details of the gas outlet tube member 3 are shown in FIG. The flexible pipe connecting part 6 provided at one end (gas outlet pipe line 3a) of the gas introducing pipe member 2 has the same configuration as the flexible pipe connecting part 6 of the gas introducing pipe member 2 shown in FIG. That is, also in the flexible pipe connecting part 6 of the gas outlet pipe member 3, the joint part 62 in which the inner wall surface is formed in a stepped shape and the insertion hole 621 is formed in order to insert the flexible pipe 12, and the insertion hole 611 in the center. The ring-shaped nut member 61 is formed. Similarly, an O-ring 63 made of an elastic body having a circular ring shape is interposed in the joint step portion of the outer peripheral surface (sliding portion 612).

  A packing 64 is attached to the nut member 61, and a groove portion 613 having a rectangular cross section is formed in a ring shape, and a C-shaped stop ring member 65 is accommodated in the groove portion 613 ( In this state, the stop ring member 65 acts to expand the diameter). An airtight packing 671 and a fireproof packing 672, which are packing members 67, are fixedly provided on the step portion 622 on the inner wall of the joint portion 62 (see FIG. 3). This packing member 67 is also the same as that used in the gas introduction pipe member 2. Similarly, a stopper member 68 is provided between the packing member 67 and the step portion 622 on the inner wall of the joint member (see FIG. 3). Similarly, a retainer member 66 is provided between the nut member 61 and the packing member 67. Similarly, the rear protrusions 662 of the retainer member 66 can be expanded and contracted in the radial direction using the ring-shaped front collar portion 661 as a fulcrum.

  Similarly, a slip-off preventing taper surface 614 formed at the end of the nut member 61 abuts on the rear projection 662 of the retainer member 66, and the rear projection 662 can be locked to a concave portion of a flexible pipe having an unevenness (not shown). It is like that. A stop ring member 65 is housed between a stop ring housing recess 623 formed on the inner wall of the joint portion 62 and a groove 613 of the nut member 61 facing the recess 623. Similarly, a stop ring holding step 625 is formed on the inner wall of the joint 62 at a position away from the tapered surface 624 formed adjacent to the stop ring receiving recess 623, and the nut member 61 is attached to the inner wall of the joint 62. It is fixed.

  Further, as shown in FIG. 5, the gas outlet 7 that communicates with the flexible pipe connector 6 and the gas outlet 3a has the same configuration as the gas inlet 5 shown in FIG. That is, the outer peripheral surface 71 of the gas outlet 5 is formed with a convex portion 74 that can be connected to the cap nut 14 in order to connect to the gas meter outlet 10 b of the gas meter 10. Further, a groove portion 72 is provided in the convex portion 74 of the outer peripheral surface 71 of the gas outlet port portion 5, and a metal ring 53 is fitted on the groove portion 72. Inside the gas outlet port portion 7, a tapered surface 76 having a diameter increasing toward the end portion of the gas outlet port portion 7 is formed, and an opening portion 75 is formed continuously with the tapered surface 76. Also in FIG. 5, the cap nut 14 for connecting the gas outlet part 5 and the gas meter outlet 10b of the gas meter 10 is shown as in FIG. Similarly, a female screw portion is formed on the inner peripheral surface of the cap nut, and the gas introduction port portion 5 and the gas meter inlet 10a (the male screw portion) of the gas meter 10 can be connected.

  Further, as shown in FIG. 5, a plug mounting portion 91 is formed in a cylindrical shape in the pressure detection pipe 3b branched from the gas lead-out pipe 3a of the gas lead-out pipe member 3 in order to provide a pressure detection plug 9. Yes. The plug mounting portion 91 is covered with a resin protective cap 92. As long as the plug mounting portion 91 can be protected, the protective cap 92 is not limited to resin. As shown in FIG. 5, the inside of the pressure detection pipe line 3 b includes a lid body accommodating portion 911, a valve chamber portion 913, and an intermediate portion 912 between the lid body accommodating portion 911 and the valve chamber portion 913. A lid 93 is detachably disposed between the lid housing portion 911 and the intermediate portion 912, and a pressure detecting valve body 94, a coil spring 95 as a biasing member, a washer 96, and a stop ring 97 are provided from the intermediate portion 912 to the valve chamber portion 913. Is incorporated. Further, the edge of the boundary step portion between the intermediate portion 912 and the valve chamber portion 913 is chamfered, and this chamfer step portion becomes the pressure detection valve seat 914.

  As shown in FIG. 6, a pair of opposed lid engaging portions 931 are formed on the outer peripheral surface of the upper end of the lid 93. Each lid engaging portion 931 has a part of the outer peripheral surface cut out flat. As shown in FIG. 5, each lid engagement portion 931 is buried inside the lid housing portion 911 upper end of the plug attachment portion 91 in a state where the attachment of the lid 93 to the plug attachment portion 91 is completed. A male screw portion 932 is formed in the lower portion of the lid engaging portion 931 of the lid 93. The male screw portion 932 meshes with the female screw portion 911 a on the inner surface of the lid housing portion 911 of the plug attachment portion 91. A step portion 933 is formed at the lower portion of the male screw portion 911 of the lid 93.

  A packing 98 is fitted on the stepped portion 933. The packing 98 abuts on a boundary step 915 between the lid housing portion 911 and the intermediate portion 912 of the plug mounting portion 91 and seals between the plug mounting portion 91 and the lid 93. A small shaft portion 934 and a protruding portion 935 at the lower end thereof are formed at the lower portion of the step portion 933 of the lid 93. An O-ring 936 is fitted on the small shaft portion 934, and the O-ring 936 hits an intermediate portion 912 of the plug attachment portion 91 to seal between the plug attachment portion 91 and the lid 93. The plug mounting portion 91 and the lid 93 are double sealed with the packing 98 and the O-ring 936.

  As shown in FIG. 6, the pressure detecting valve body 94 includes a main valve portion 941 and a ring portion 942 connected by a pair of connecting pieces 943. A groove portion 941a is dug in the outer peripheral surface of the main valve portion 941, and an O-ring 944 is fitted on the groove portion 941a. The O-ring 944 seals between the main valve portion 941 of the pressure detection valve body 94 and the pressure detection valve seat 914 of the plug mounting portion 91. A concave portion 945 is dug in the bottom surface of the main valve portion 941, and the upper end of the coil spring 95 is engaged with the concave portion 945. As shown in FIG. 5, in a state where the pressure detecting valve body 94 receives the biasing force of the coil spring 95 (valve closed state), the O-ring 944 hits the pressure detecting valve seat 914 of the plug mounting portion 91, and the upper end of the main valve portion 941 is It is disposed in the middle part 912 of the plug mounting part 91.

  The washer 96 has a disk shape, and as shown in FIG. 6, a projection 961 is formed at the center on the upper surface side. A plurality of through holes 962 are formed around the protrusion 961. Each of these through-holes 962 becomes a flow path through which gas or the like flows during pressure detection or air purge. The washer 96 is fixed by a stop ring 97 while being engaged with a stepped portion 913 a formed in the valve chamber portion 913 of the plug mounting portion 91. The stop ring 97 is fitted into a groove 913b formed adjacent to the step 913a in the valve chamber 913. The end of the coil spring 95 is engaged with the protrusion 961 of the washer 96. The coil spring 95 is disposed between the main valve portion 941 of the pressure detection valve body 94 and the washer 96, and urges the pressure detection valve body 94 toward the pressure detection valve seat 914 side of the plug mounting portion 91.

  The gas outlet line 3a of the gas outlet pipe member 3 and the pressure detection line 3b branched from the gas inlet line 3a are configured as described above. Further, the gas meter support device 1 can be reduced in size, and can be connected to the gas outlet 7 regardless of whether the gas outlet (gas meter outlet 10b) of the gas meter 10 is provided on the upper side or the lower side of the gas meter 10. Therefore, the flexible pipe connecting portion 6 and the gas outlet port portion 7 of the gas outlet pipe member 3 are provided in the intersecting direction along the longitudinal direction of the gas outlet pipe member 3 as shown in FIG. Yes. In particular, in this example, the flexible tube connecting portion 6 and the gas introducing / extracting portion 7 are provided in the orthogonal direction along the longitudinal direction of the gas outlet tube member 3. In the present example, the pressure detecting plug 9 is built in so as to face the flexible tube connecting portion 6. However, the pressure detecting plug 9 is not limited to be built in so as to face the flexible tube connecting portion 6, and can be built in facing the gas introducing / extracting portion 7, for example.

  The fixing metal fitting 4 supports the gas inlet tube member 2 and the gas outlet tube member 3 as described above. As shown in FIG. 1, the fixing bracket 4 is a support member 41 for positioning and fixing (supporting) the connecting member 41 for fixing to the housing, the gas introduction pipe member 2, and the gas outlet pipe member 3. 42. The connecting member 41 is a plate-like member, and has a substantially L-shape by bending one end side of the plate-like member as shown in FIG. The connecting member 41 includes an attachment portion 411 and an adjustment portion 412.

  The attachment portion 411 is a portion bent in a substantially L shape on the end side of the connecting member 41, and has a shape that is easy to follow along the wall surface of the housing so as to be easily fixed to the wall surface of the housing. As shown in FIG. 1, the attachment portion 411 is provided with two long hole portions 411 a, and the long hole portion 411 a is fixed to a wall surface or the like of the housing through a bolt or the like as a fixing member. A plurality of small hole portions 412 a are provided in two rows in the adjustment portion 412 that is continuous with the attachment portion 411. As shown in FIG. 1, the support member 42 is a plate-like member that can overlap with the adjusting portion 412 of the connecting member 41. When the support member 42 is overlapped with the adjustment portion 412, through grooves 421 and 421 are formed at positions of the support member 42 corresponding to the plurality of small hole portions 412 a in two rows of the adjustment portion 412.

  As shown in FIG. 1, the adjustment portion 412 of the connecting member 41 is overlapped with the lower surface side of the support member 42, and is a fixing member to the small holes 412 a and 412 a of the adjustment portion 412 from the through grooves 421 and 421 of the support member 42. Bolts, nuts, etc. are assembled and fixed. Considering the environment in which the gas meter 10 is installed, for example, depending on the situation of the wall surface of the housing, the gas meter 10 may have to be installed away from the wall surface of the housing. In preparation for such a case, the adjustment plate 412 is provided with a plurality of small holes 412a in two rows, and the small holes 412a are selected as appropriate and fixed by the through grooves 421 and 421 of the support member 42 and the fixing member. Will do.

  Further, as shown in FIG. 1, two arc frame portions 422 are formed on the side of the support member 42 opposite to the side on which the connecting member 41 is attached. The arc frame portion 422 has a size capable of sandwiching the gas introduction pipe line 2a on the gas introduction port part 5 side of the gas introduction pipe member 2 and the gas lead-out pipe line 3a on the gas outlet port part 7 side of the gas lead-out pipe member 3. It is formed by an arc-shaped notch. And the frame part 422a has stood | started up from the circular arc-shaped notch, as shown in FIG. The frame 422a can be fitted around the gas introduction pipe 2a on the gas introduction port 5 side of the gas introduction pipe member 2 and the gas introduction pipe 2a on the gas introduction port 5 side of the gas outlet pipe member 3. The arc frame portions 422 and 422 are connected to the gas introduction pipe line 2a on the gas introduction port 5 side of the gas introduction pipe member 2 and the gas introduction pipe line 3a on the gas outlet port 7 side of the gas outlet pipe member 3. Fit and support and fix.

  Furthermore, in this example, the support and fixing to the gas introduction pipe line 2a on the gas introduction port part 5 side and the gas lead-out pipe line 3a on the gas lead-out part 7 side are performed through the small hole part 422a1 provided with the frame parts 422a and 422a. In addition to pressing the gas inlet line 2a on the gas inlet port 5 side and the gas outlet line 3a on the gas outlet port 7 side with the bolt as the fixing member, the gas inlet port through the bolt as the fixing member The plate member 423 is adjacent to the arcuate frame part 422 of the support member 42 so as to close the arcuate frame part 422 fitted around the gas introduction pipe line 2a on the 5th side and the gas outlet line 3a on the gas outlet port part 7 side. Since they are fixed, pressure is applied to the gas introduction pipe line 2a on the gas introduction port 5 side and the gas lead-out pipe line 3a on the gas lead-out port 7 side so as to be supported and fixed. Support and fixation of the gas introduction pipe line 2a on the gas introduction port 5 side and the gas lead-out pipe line 3a on the gas lead-out port 7 side are not limited to support fixation in this example, but can be supported and fixed by other means. There may be.

  As described above, the flexible pipes 12 and 12 connected to one end of the gas introduction pipe member 2 and the gas lead-out pipe member 3 supported by the fixture 4 and fixed to the wall surface of the housing are as shown in FIG. After extending straight from one end of the gas introduction pipe member 2 and the gas outlet pipe member 3 toward the wall surface or the like of the housing, it is bent and extends straight along the wall surface or the like of the housing in the ground direction. That is, as shown in FIG. 1, the flexible tubes 12 and 12 are bent in a state close to a right angle, and the flexible tube support 13 is attached to the bent portion 121 that is bent.

  As shown in FIG. 7, the flexible tube support 13 is a combination of two hollow cylindrical members having different diameters in the longitudinal direction of the cylindrical member and cut along the longitudinal direction of the two cylindrical members. It consists of two semi-cylindrical members. That is, the flexible tube support 13 is a first semi-cylindrical member having an annular portion 131a that is fitted on the flexible tube connecting portion 6 of the gas introduction tube member 2 (gas outlet tube member 3). The support portion 131 and the second support portion 132 which is another semi-cylindrical member that supports the bent portion 121 of the flexible tube 12 are configured. As shown in FIGS. 7 and 8, the second support portion 132 is formed as a shape (bent portion 132 a) bent in an arc shape with respect to the longitudinal direction of the flexible tube support 13. The arcuately bent shape (bent portion 132a) can correspond to the bent portion 121 of the flexible tube 12.

  The annular portion 131a has a size (diameter) that can be fitted around the outer periphery of the flexible tube connecting portion 6, and the first support portion 131 can push the nut member 61 of the flexible tube connecting portion 6 into the joint portion 62. Has a length. When the annular portion 131a is externally fitted to the outer periphery of the flexible tube connecting portion 6, as shown in FIG. 8, the first support portion 131 of the flexible tube support 13 supports the flexible tube connecting portion 6 and the flexible tube 12 extending therefrom. Will do. That is, since the flexible pipe 12 is supported along the direction regulated by the first support part 131 and the bending force of the flexible pipe 12 is not applied to the flexible pipe connection part 6, gas leakage from the flexible pipe connection part 6 occurs. There is no fear of causing it. Although the flexible pipe connecting portion 6 of this example shows a form in which the nut member 61 is pushed into the joint member 62, the flexible pipe connecting portion 6 may be a so-called one-touch joint that can be connected only by inserting the flexible pipe 12. In this case, the first support portion 131 can have a size (diameter) that matches the outer diameter of the flexible tube 12.

  Then, in the bent portion 121 of the flexible tube 12, as shown in FIG. 8, the concavo-convex portion of the flexible tube 12 that is inside the bent portion 121 becomes large, and the flexible side that is outside the bent portion 121 is the contracted side 121 a of the flexible tube 12. The stretched side 121b of the flexible tube 12 is generated in which the uneven portion of the tube 12 is reduced. The second support portion 132 of the flexible tube support 13 supports the contraction side 121a that is the inside of the bent portion 121.

  That is, supporting the bending part 121 of the flexible tube 12 without deforming it by making the contraction side 121a inside the bending part 121 of the flexible tube 12 follow the shape of the bending part 132a of the second support part 132. become. In particular, since the bent portion 121 of the flexible tube 12 supports the contraction side 121a that is easily bent, the contraction side 121a is further contracted (further bent) to prevent the deformation of the diameter of the flexible tube 12, and to reduce the diameter. Since it becomes possible to support in the maintained state, it is possible to ensure the gas flow in the bent portion 121 of the flexible tube 12.

  Below, the construction method and usage method of the gas meter support apparatus 1 of this invention are demonstrated.

  The gas introduction pipe member 2 already provided with the gas stopper mechanism 8 and the flexible pipe connection part 6 at the gas meter inlet 10a of the gas meter 10, and the gas outlet pipe member already provided with the pressure detection plug and the flexible pipe connection part 6 at the gas meter outlet 10b. 3 is attached. At the time of attachment, as shown in FIG. 1, the gas meter inlet 10a and the gas meter outlet 10b are respectively provided with pipe portions 10a1, 10b1 provided with male screw portions (not shown) on the outer peripheral surface, and these pipe portions 10a1, 10b1 and The gas introduction pipe line 2 a on the gas introduction port 5 side of the gas introduction pipe member 2 and the gas lead-out pipe line 3 a on the gas outlet port 7 side of the gas lead-out pipe member 3 are connected. As shown in FIGS. 2 and 5, the gas introduction pipe line 2a on the gas introduction port 5 side of the gas introduction pipe member 2 and the gas introduction pipe line 3a on the gas outlet port 7 side of the gas outlet pipe member 3 are A nut 14 is provided. The cap nut 14 connects the gas introduction pipe line 2a on the gas introduction port 5 side and the pipe part 10a1, and the gas lead-out line 3a and the pipe part 10b1 on the gas outlet 7 side. And connect.

  Then, the gas meter 10 to which the gas introduction pipe member 2 and the gas lead-out pipe member 3 are attached is attached and fixed to the wall surface of the housing by the fixing bracket 4. The connecting member 41 and the support member 42 of the fixing bracket 4 are fixed in advance according to the distance between the gas meter 10 and the wall surface of the housing. The two arc frame portions 422 provided on the connecting member 41 are respectively connected to the gas introduction pipe 2 a on the gas introduction port 5 side of the gas introduction pipe member 2 and the gas outlet pipe on the gas outlet 7 side of the gas outlet pipe member 3. It is externally fitted to the path 3a and supported and fixed. It fixes to the wall surface of a housing through the bolt etc. which are fixing members in the two long hole parts 411a of the support member 42. FIG. Next, as shown in FIG. 8, the annular portion 131 a of the flexible tube support 13 is fitted on the flexible tube connecting portion 6 of the gas introduction tube member 2 and the gas outlet tube member 3.

  Then, the flexible pipe 12 is assembled to the flexible pipe connecting portion 6 of the gas introduction pipe member 2 and the gas outlet pipe member 3 of the gas meter support device 1. First, the distal end of the flexible tube 12 is inserted into the insertion hole 611 of the nut member 61 and the insertion hole 621 of the joint portion 62. The distal end of the flexible tube 12 comes into contact with the reduced diameter portion of the joint portion 62 and insertion is stopped. In this state, the flexible tube 12 is temporarily fixed by the stopper member 68. Next, the nut member 61 is pushed into the joint portion 62 side until there is almost no gap between them. Therefore, the rear protrusion 662 of the retainer member 66 is fitted into the concave portion of the flexible tube 12, and this portion is firmly pressed and fixed. And the packing member 67 will press-contact with the outer peripheral surface of the flexible pipe 12, and a sealing performance will be improved. When the nut member 61 is completely pushed into the joint portion 62 and inserted, the nut member 61 and the joint portion 62 are fixed so as to restrain each other via the stop ring 65, and the assembly is completed. .

  When the flexible pipe 12 is assembled to the flexible pipe connecting portion 6 of the gas introduction pipe member 2 and the gas lead-out pipe member 3, the flexible pipe 12 is bent and the gas introduction pipe member 2 and the gas as shown in FIGS. The flexible pipe connecting portion 6 of the outlet pipe member 3 is assembled. The bent portion 121 of the flexible tube 12 is supported by the second support portion 132 of the flexible tube support 13 that is externally fitted to the flexible tube connection portion 6.

  In this state, the gas is circulated through the flexible pipe 12 and the handle 88 of the gas stopper mechanism portion 8 of the gas introduction pipe member 2 is rotated so that the gas is introduced from the flexible pipe connection portion 6 along the gas flow path 2c. The gas is circulated to the part 5, and the gas is circulated from the gas outlet port 7 of the gas outlet pipe member 3 to the flexible pipe 12 through the flexible pipe connecting part 6 along the gas flow path 3 c via the gas meter 10. At that time, the bent portion 121 of the flexible tube 12 is bent along the second support portion 132 of the flexible tube support 13, so that the bent portion 121 is further bent (the bent portion 121 becomes more acute). Thus, the diameter of the flexible pipe 12 through which the gas flows in the bent portion 121 (the diameter of the bent portion 121) is reduced, and the bent portion 121 is prevented from becoming narrow.

  Further, in the pressure detecting plug 9 of the gas outlet tube member 3 shown in FIG. 5, for example, an outlet adapter is connected to the plug mounting portion 91 from which the lid 93 is removed, and for example, an outlet is attached to the upper side of the outlet adapter. The pressure detection valve body 94 is pushed in by the pressure from the outlet and the outlet adapter, the coil spring 95 is contracted between the pressure detection valve body 94 and the washer 96, and the space between the pressure detection valve seat 914 and the O-ring 944 in the plug mounting portion 91 is between. The valve is opened and opened, and pressure detection, air purge, etc. are possible. When the outlet and the outlet adapter are removed after the completion of the pressure detection, the air purge, etc., the pressure detection valve body 94 returns to the closed state due to the elasticity of the coil spring 95. Then, the lid 93 is attached to the plug attachment portion 91 and the protective cap 92 is put on.

  The above is the construction method and the usage method of the gas meter support device 1 of the present invention. However, the construction method is not limited to the above-described method, and it is possible to construct the gas meter 10 by a method that is easy to construct depending on the situation of the installation location of the gas meter 10. Is possible. Further, depending on the situation of the wall surface of the housing, for example, when there is a protrusion on the wall surface of the housing and the flexible tube 12 must be bent, as shown in FIG. It is also possible to open the lead-out pipe member 3 with respect to the fixture 4 larger than the state shown in FIG. 1, and open the gas introduction pipe member 2 with respect to the fixture 4 as shown in FIG. It is also possible to open the gas outlet pipe member 3 with respect to the fixture 4. Conversely, it is possible to open the gas introduction pipe member 2 with respect to the fixture 4 and not open the gas outlet pipe member 3 with respect to the fixture 4.

(Example 2)
FIG. 10 shows a gas meter support device 11 according to another embodiment of the present invention. The basic form is the same as the gas meter support device 1 shown in FIG. 1 is different from the gas meter 15 shown in FIG. 10 in that the gas meter 10 shown in FIG. 1 has a gas meter inlet 10a and a gas meter outlet 10b provided on the upper side of the gas meter 10, whereas the gas meter shown in FIG. 15, the gas meter inlet 15 a and the gas meter outlet 15 b are provided below the gas meter 15.

  And it has already connected to the gas meter inlet 15a provided in the lower side of the gas meter 15 with the gas inlet port part 5 of the gas inlet pipe member 2 provided with the gas stopper mechanism part 8 and the flexible pipe connection part 6 as an upper side. Specifically, similarly to the gas meter support device 1 shown in FIG. 1, the gas introduction port 5 and the pipe portion 15 a 1 are fixed by the cap nut 14. Similarly, the gas lead-out port 7 of the gas lead-out pipe member 3 already provided with the pressure detection plug 9 and the flexible pipe connector 6 is connected to a gas meter outlet 15b provided on the lower side of the gas meter 15 with the gas lead-out port 7 on the upper side. is there. Similarly, the gas outlet 7 and the pipe portion 15b1 are fixed by the cap nut 14.

  Also in the gas meter 15b shown in FIG. 10, similarly to the gas meter support device 1 shown in FIG. 1, the gas introduction pipe member 2 and the gas lead-out pipe member 3 are supported by the fixture 4, and the gas meter 15 is attached and fixed to the wall surface of the housing. is there. Similarly, the flexible pipe 12 assembled to the flexible pipe connecting portion 6 of the gas introduction pipe member 2 and the gas outlet pipe member 3 extends along the wall surface of the casing after extending toward the wall surface of the casing. A bent portion 121 is generated, and the bent portion 121 is supported by the flexible tube support 13 and the state of the contraction side 121a of the bent portion 121 is maintained.

It is a perspective view of the gas meter support device which is the present invention. It is explanatory drawing shown from the cross-sectional direction of a gas introduction pipe member along the longitudinal direction of the gas introduction pipe member of the gas meter support apparatus which is this invention. It is explanatory drawing which shows the packing member provided in the step part of the inner wall of the coupling part in FIG. 2 from a cross section. It is explanatory drawing of the gas stopper integrated in the gas introduction pipe member. (A) is a disassembled perspective view which shows the whole structure of a gas stopper. (B) is an explanatory view showing the handle from the back side. It is explanatory drawing shown from the cross-sectional direction of a gas outlet pipe member along the longitudinal direction of the gas outlet pipe member of the gas meter support apparatus which is this invention. It is a disassembled perspective view which shows the whole structure of the pressure detection plug integrated in the gas outlet tube member. It is a perspective view of a flexible pipe support. It is a side view which shows the state assembled | attached to the flexible pipe connected to the flexible pipe | tube support tool by the gas derivation | leading-out pipe member (gas introduction pipe member). It is explanatory drawing which shows the attachment form of the gas inlet tube member and gas outlet tube member attached to the gas meter. (A) is explanatory drawing which shows that the gas introduction pipe member and the gas derivation | leading-out pipe member were attached to the gas meter in the state opened largely with respect to the fixture. (B) is explanatory drawing which shows having attached to the gas meter in the state which opened the gas outlet tube member with respect to the fixture, without opening the gas introduction tube member with respect to the fixture. It is a perspective view of the other form of the gas meter support apparatus which is this invention. It is explanatory drawing which shows the support apparatus of the conventional gas meter from a cross section. It is a perspective view which shows the state which installed the large sized gas meter using the coupling for conventional gas meter connection. It is a figure which shows the conventional gas meter mounting structure, Comprising: (a) is a front view, (b) is a partially cutaway side view.

Explanation of symbols

1 ... Gas meter support device,
2 ... Gas introduction pipe member, 2a ... Gas introduction pipe line, 2b ... Gas plug insertion part, 2c ... Gas flow path 3 ... Gas outlet pipe member, 3a ... Gas outlet pipe line, 3b ... Pressure detection pipe line, 3c ... Gas flow Road 4 ... Fixing bracket 41 ... Connecting member 411 ... Mounting portion 411a ... Long hole portion 412 ... Adjusting portion 412a ... Small hole portion 42 ... Support member, 421 ... Through groove, 422 ... Arc frame portion, 422a ... Frame Part 5 ... gas inlet part, 51 ... outer peripheral surface, 52 ... groove part, 53 ... packing, 54 ... convex part, 55 ... opening part, 56 ... taper surface 6 ... flexible pipe connection part,
DESCRIPTION OF SYMBOLS 7 ... Gas outlet part, 71 ... Outer peripheral surface, 72 ... Groove part, 73 ... Packing, 74 ... Convex part, 75 ... Opening part, 76 ... Tapered surface 8 ... Gas plug mechanism part, 9 ... Pressure detecting plug 10, 15 ... Gas meter, 10a, 15a ... Gas meter inlet, 10b, 15b ... Gas meter outlet, 10a1, 15a1, 10b1, 15b1 ... Pipe part 12 ... Flexible pipe 121 ... Bent part 13 ... Flexible pipe support 131 ... First support part 131a ... annular part, 132 ... second support part, 132a ... bent part 14 ... cap nut

Claims (4)

A flexible pipe connection part for connecting a flexible pipe is provided at one end, a gas introduction port part for introducing gas into the gas meter is provided at the other end, and the flexible pipe connection part and the gas introduction port part intersect each other. A gas introduction pipe member provided in a direction ;
A flexible pipe connecting part for connecting a flexible pipe is provided at one end, a gas outlet part for leading gas from a gas meter is provided at the other end, and the flexible pipe connecting part and the gas outlet part intersect. A gas outlet pipe member provided in a direction ;
A member that supports the gas introduction pipe member and the gas lead-out pipe member, and that fixes the gas introduction pipe member and the gas lead-out pipe member to the housing;
A support member and a connecting member, wherein the support member includes two arc frame portions for supporting and fixing the gas introduction pipe member and the gas outlet tube member, and a plate-like member disposed so as to close the arc frame portion; Having a fixing bracket,
The connecting member includes a mounting portion that is a portion where the end side of the connecting member is bent in a substantially L shape, and a plurality of small hole portions are provided in two rows that are continuous with the mounting portion. And an adjustment part that incorporates and fixes the fixing member into the small hole part from the through groove on the opposite side of the two arc frame parts of the supporting member that is overlapped,
A flexible tube support that supports the contraction side of the flexible tube, which is inside the bent portion of the flexible tube that is connected to and extends to the flexible tube connecting portion of the gas introduction tube member and / or the gas outlet tube member. Install,
In the flexible tube support device, the annular portion of the flexible tube support device is fitted around the outer periphery of the flexible tube connection portion, and the hollow semi-columnar first of the flexible tube support device having the annular portion is provided. The flexible tube support, wherein a support portion supports the flexible tube connecting portion and the flexible tube extending from the flexible tube connection portion, and a contraction side inside the flexible bending portion is combined with the first support portion. A gas meter support device characterized in that the bent portion of the flexible tube is supported without further deformation so as to be along the bent portion of the second support portion of the tool . In the flexible pipe connecting portion, a packing member that is inserted into the flexible pipe connecting portion and seals the outer peripheral surface of the flexible pipe to an inner wall facing the flexible pipe having an undulating uneven portion on the outer peripheral surface; gas meter support device according to claim 1, characterized in that it comprises a retainer member, a having an engagement portion which mutually relates to the concave portion of the outer peripheral surface of the pipe. The gas introduction pipe member is formed with a gas introduction pipe communicating the flexible pipe connection part and the gas introduction port, and a gas plug insertion part in the gas introduction pipe,
In the gas plug insertion portion, a plug body having a gas flow hole for circulating gas, which is rotatably accommodated in a tapered truncated cone-shaped plug sliding surface formed in the gas plug insertion portion,
A handle that is disposed at an end of the gas plug insertion portion, engages with the plug body, and rotates the plug body; and a biasing member that urges the plug body to the gas plug insertion section. Prepared ,
The gas stopper insertion portion has a handle housing portion formed so as to be opened in the end direction, and an annular inner groove formed on the inner surface of the handle housing portion,
The handle has a key arrangement groove formed in the center on the side facing the handle accommodating portion,
The handle key is inserted into the key arrangement groove and has a handle key for rotatably connecting the gas plug insertion portion and the handle by disposing both ends in the annular groove. or gas meter support device according to 2. The gas lead-out pipe member is formed with a gas lead-out pipe communicating with the flexible pipe connecting portion and the gas lead-out port, and a pressure detection pipe branched from the gas lead-out pipe,
The pressure detection line includes a pressure detection valve body disposed in the pressure detection line, a pressure detection valve seat with which the pressure detection valve body comes into contact with and separates from, and a biasing of the pressure detection valve body toward the pressure detection valve seat The gas meter support device according to any one of claims 1 to 3 , further comprising an urging member.

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