JP5684538B2 - Gas meter support device - Google Patents
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- JP5684538B2 JP5684538B2 JP2010250834A JP2010250834A JP5684538B2 JP 5684538 B2 JP5684538 B2 JP 5684538B2 JP 2010250834 A JP2010250834 A JP 2010250834A JP 2010250834 A JP2010250834 A JP 2010250834A JP 5684538 B2 JP5684538 B2 JP 5684538B2
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- 239000000758 substrate Substances 0.000 description 16
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- 238000003466 welding Methods 0.000 description 2
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Description
この発明は、フレキシブルガス管が接続されたガスメータを支持するためのガスメータの支持装置に関する。 The present invention relates to a gas meter support device for supporting a gas meter to which a flexible gas pipe is connected.
フレキシブルガス管は、柔軟性を有しているので、配管を容易に行うことができるというメリットがある。その反面、フレキシブルガス管をガスメータに接続した場合には、フレキシブルガス管ではガスメータを支持することができないという問題がある。そこで、ガスメータにフレキシブルガスを接続する場合には、ガスメータを支持するための支持装置が用いられている。 Since the flexible gas pipe has flexibility, there is an advantage that piping can be easily performed. On the other hand, when the flexible gas pipe is connected to the gas meter, there is a problem that the flexible gas pipe cannot support the gas meter. Therefore, when a flexible gas is connected to the gas meter, a support device for supporting the gas meter is used.
従来のガスメータの支持装置としては、下記特許文献１に記載のものがある。この支持装置は、固定部材、支柱及び支持部材を備えている。固定部材は、上端が開口した断面円形の固定筒部を有しており、この固定筒部が鉛直に起立した状態で床面に固定される。固定筒部には、支柱の下端部が挿入される。また、固定筒部には、その周壁を貫通する止めねじが螺合されている。この止めねじを締め付けると、支柱の下端部が固定筒部の内周面に押し付けられる。これによって、支柱が上下に立った状態で固定筒部に固定される。支柱の上端部には、支持部材が取り付けられる。そして、支持部材によってガスメータが支持される。 As a conventional gas meter support device, there is one described in Patent Document 1 below. The support device includes a fixing member, a support column, and a support member. The fixing member has a fixed cylinder portion having a circular cross section with an upper end opened, and is fixed to the floor surface in a state where the fixed cylinder portion stands vertically. The lower end portion of the column is inserted into the fixed cylinder portion. Further, a set screw penetrating the peripheral wall is screwed into the fixed cylinder portion. When the set screw is tightened, the lower end portion of the column is pressed against the inner peripheral surface of the fixed cylinder portion. As a result, the column is fixed to the fixed cylinder portion while standing up and down. A support member is attached to the upper end of the column. The gas meter is supported by the support member.
上記従来の支持装置においては、止めねじが支柱に点接触し、止めねじと１８０°反対側に位置する固定筒部の内周面と支柱の外周面とが上下に線接触しているだけである。つまり、固定筒部と支柱とは周方向へ１８０°離れた２箇所において接触しているだけである。このため、支柱の固定強度が低く、支柱が鉛直方向に対して若干ではあるが傾いてしまうという問題があった。支柱が傾くと、ガスメータの姿勢が正しい姿勢から外れてしまい、ガスの流量計測に誤差が生じるおそれがある。 In the conventional support device described above, the set screw is in point contact with the support column, and the inner peripheral surface of the fixed cylinder portion and the outer peripheral surface of the support column that are 180 ° opposite to the set screw are in line contact with each other in the vertical direction. is there. That is, the fixed cylinder part and the support are only in contact at two locations that are 180 ° apart in the circumferential direction. For this reason, there is a problem that the fixing strength of the support is low and the support is inclined slightly with respect to the vertical direction. If the column is tilted, the posture of the gas meter is deviated from the correct posture, which may cause an error in gas flow rate measurement.
なお、固定筒部の内径と支柱の外径との寸法差を小さくすることにより、支柱の傾きをほとんど無くすことができるが、そのようにすると、固定筒部の内径及び支柱の外径の寸法管理を厳しくしなければならず、固定筒部及び支柱の製造費が嵩む。その上、支柱を固定筒部に挿入し難くなり、ガスメータの設置に手間が掛かるという別の問題を招来してしまう。 In addition, by reducing the dimensional difference between the inner diameter of the fixed cylinder part and the outer diameter of the support column, the inclination of the support column can be almost eliminated, but in this case, the dimensions of the inner diameter of the fixed cylinder part and the outer diameter of the support column are reduced. Management has to be strict, and the manufacturing cost of the fixed cylinder part and the support column is increased. In addition, it becomes difficult to insert the support column into the fixed cylinder, which causes another problem that it takes time to install the gas meter.
この発明は、上記の問題を解決するために、長手方向を上下方向に向けた固定筒部を有する固定部材と、下端部が上記固定筒部に挿入されることによって立設された支柱と、この支柱の上端部に設けられた支持部材とを備え、上記支持部材にガスメータが取り付けられるガスメータの支持装置において、上記固定筒部の上端部に、上下方向に延びる複数のスリットが上記固定筒部の周方向へ互いに離して形成されることにより、上記固定筒部の上端部が拡縮径可能とされ、上記支柱に雌ねじ部材が上下方向へ移動可能に、かつ回動可能に外挿されるとともに、この雌ねじ部材が上記固定筒部の上端部に螺合され、上記固定筒部と上記雌ねじ部材との間には、上記雌ねじ部材の上記固定筒部へのねじ込み伴って上記固定筒部の上記スリットが形成された上端部を縮径させて、上記固定筒部の内周面を上記支柱の外周面に環状に押し付け、それによって上記支柱を上記固定筒部に固定する固定機構が設けられていることを特徴としている。
この場合、 上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の少なくとも一方が下方に向かって拡径するテーパねじ部とされ、このテーパねじ部と、上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の他方とによって上記固定機構が構成されていてもよい。
上記テーパねじ部が上記固定筒部に形成されたテーパ雄ねじ部であり、上記他方のねじ部が上記雌ねじ部材に形成され、かつ上記テーパ雄ねじ部に螺合するテーパ雌ねじ部であってもよく、上記テーパねじ部が上記固定筒部に形成されたテーパ雄ねじ部であり、上記他方のねじ部が上記雌ねじ部材に形成され、かつ上記テーパ雄ねじ部に螺合可能なストレート雌ねじ部であってもよく、あるいは上記テーパねじ部が上記雌ねじ部材に形成されたテーパ雌ねじ部であり、上記他方のねじ部が上記固定筒部に形成され、かつ上記テーパ雌ねじ部に螺合可能なストレート雄ねじ部であってもよい。
上記固定機構が、上記固定筒部と上記雌ねじ部材とのいずれか一方に形成され、他方に突き当たることにより、上記雌ねじ部材の上記固定筒部へのねじ込みに伴って上記固定筒部を縮径させる傾斜面を有しているものであってもよい。
上記固定部材の上記固定筒部内に位置する部位と、上記固定筒部に挿入された上記支柱の下端部との間には、テーパの求心作用によって上記支柱の下端部の軸線を上記固定筒部の軸線と一致させる求心機構が設けられていることが望ましい。
In order to solve the above-mentioned problem, the present invention has a fixing member having a fixed cylindrical portion whose longitudinal direction is directed in the vertical direction, a support column erected by inserting a lower end portion into the fixed cylindrical portion, And a support member provided at the upper end of the support column, wherein a gas meter is attached to the support member, wherein a plurality of slits extending in the vertical direction are formed at the upper end of the fixed tube portion. Are formed apart from each other in the circumferential direction, the upper end portion of the fixed cylinder portion can be expanded and contracted, and the female screw member can be moved up and down in the up and down direction, and can be rotated. The female screw member is screwed into the upper end portion of the fixed cylindrical portion, and the slit of the fixed cylindrical portion is inserted between the fixed cylindrical portion and the female screw member as the female screw member is screwed into the fixed cylindrical portion. Shape A fixed mechanism is provided that reduces the diameter of the upper end portion, and presses the inner peripheral surface of the fixed cylinder portion annularly against the outer peripheral surface of the column, thereby fixing the column to the fixed cylinder unit. It is a feature.
In this case, at least one of the screw portions of the fixed cylinder portion and the female screw member that are screwed together is a tapered screw portion that expands downward, and the tapered screw portion, the fixed cylinder portion, and the female screw member The fixing mechanism may be configured by the other of the screw portions screwed together.
The taper screw part may be a taper male screw part formed on the fixed cylinder part, and the other screw part may be a taper female screw part formed on the female screw member and screwed into the taper male screw part. The taper screw portion may be a taper male screw portion formed on the fixed cylinder portion, and the other screw portion may be a straight female screw portion formed on the female screw member and screwable with the taper male screw portion. Alternatively, the taper screw portion is a taper female screw portion formed on the female screw member, and the other screw portion is a straight male screw portion formed on the fixed cylinder portion and screwable with the taper female screw portion. Also good.
The fixing mechanism is formed on one of the fixed cylinder part and the female screw member, and abuts against the other, thereby reducing the diameter of the fixed cylinder part as the female screw member is screwed into the fixed cylinder part. It may have an inclined surface.
Between the part located in the fixed cylinder part of the fixed member and the lower end part of the support column inserted in the fixed cylinder part, the axis of the lower end part of the support column is connected to the fixed cylinder part by a centripetal action of a taper. It is desirable that a centripetal mechanism that matches the axis of
この発明に係るガスメータ用支持装置によれば、雌ねじ部材を締め付けると、固定筒部の上端部が弾性的に縮径する。その結果、固定筒部の内周面が、スリットの部分を除いて、支柱の外周面に全周にわたって環状に押圧接触する。しかも、固定筒部の上端部が弾性変形することにより、固定筒部の内周面は、支柱の外周面に対し上下方向へ所定の長さをもって押圧接触する。このように、固定筒部の内周面と支柱の外周面とを環状に、しかも上下方向へ所定の長さをもって押圧接触させることができるので、固定筒部による支柱に対する固定強度を向上させることができる。よって、支柱が鉛直方向に対して傾くことを防止することができる。 According to the gas meter support device of the present invention, when the female screw member is tightened, the upper end portion of the fixed cylinder portion is elastically reduced in diameter. As a result, the inner peripheral surface of the fixed cylinder portion is in annular contact with the outer peripheral surface of the support column in an annular shape except for the slit portion. In addition, when the upper end portion of the fixed tube portion is elastically deformed, the inner peripheral surface of the fixed tube portion is in press contact with the outer peripheral surface of the support column in a vertical direction with a predetermined length. In this way, the inner peripheral surface of the fixed tube portion and the outer peripheral surface of the support column can be annularly contacted with a predetermined length in the vertical direction, so that the fixing strength of the fixed tube portion to the support column can be improved. Can do. Therefore, it is possible to prevent the support column from being inclined with respect to the vertical direction.
以下、この発明を実施するための最良の形態を、図面を参照して説明する。
図１〜図８は、この発明の第１実施の形態を示す。この実施の形態に係るガスメータの支持装置Ａは、固定部材１、支柱２、雌ねじ部材３及び支持部材４を主な構成要素としている。
The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 8 show a first embodiment of the present invention. The gas meter support device A according to this embodiment includes a fixing member 1, a support 2, a female screw member 3, and a support member 4 as main components.
図４及び図５に示すように、固定部材１は、基板１１を有している。基板１１は、固定部材１を床Ｆ又は地面に固定するためのものであり、略正方形の平板状に形成されている。基板１１は、必ずしも平板状に形成する必要がなく、例えば円形の皿の上下を逆にしたような形状、その他任意の形状を採用することができる。基板１１の四隅部には、固定ボルトＴが上下に挿通されている。そして、この固定ボルトＴを床Ｆに螺合させて締め付けることにより、基板１１が床Ｆに固定されている。 As shown in FIGS. 4 and 5, the fixing member 1 has a substrate 11. The substrate 11 is for fixing the fixing member 1 to the floor F or the ground, and is formed in a substantially square flat plate shape. The board | substrate 11 does not necessarily need to form in flat form, For example, the shape which turned the top and bottom of the circular dish upside down, and other arbitrary shapes can be employ | adopted. Fixing bolts T are vertically inserted into the four corners of the substrate 11. The substrate 11 is fixed to the floor F by screwing the fixing bolt T to the floor F and tightening.
基板１１の上面の中央部には、固定筒部１２が設けられている。固定筒部１２は、円筒状をなしており、その軸線を鉛直方向に向けた状態で基板１１に立設固定されている。固定筒部１２の上端部は、開口させられている。固定筒部１２の外周面の上端部には、下方へ向かって拡径するテーパ雄ねじ部（ねじ部）１３が形成されている。 A fixed cylinder portion 12 is provided at the center of the upper surface of the substrate 11. The fixed cylinder portion 12 has a cylindrical shape, and is erected and fixed to the substrate 11 with its axis line directed in the vertical direction. The upper end portion of the fixed cylinder portion 12 is opened. A tapered male threaded portion (threaded portion) 13 that expands downward is formed at the upper end of the outer peripheral surface of the fixed cylindrical portion 12.
固定筒部１２の上端部には、複数のスリット１４が形成されている。スリット１４は、固定筒部１２の径方向にはその周壁部を外周面から内周面まで横断しており、上下方向には固定筒部１２の上端面からテーパ雄ねじ部１３を越えて下方へ所定の長さをもって延びている。複数のスリット１４は、固定筒部１２の周方向へ等間隔をもって配置されている。このような複数のスリット１４が形成されることにより、テーパ雄ねじ部１３を含む固定筒部１２の上端部が径方向へ弾性的に拡縮径可能になっている。 A plurality of slits 14 are formed at the upper end portion of the fixed cylinder portion 12. The slit 14 crosses the peripheral wall portion from the outer peripheral surface to the inner peripheral surface in the radial direction of the fixed cylindrical portion 12, and extends downward from the upper end surface of the fixed cylindrical portion 12 beyond the tapered male screw portion 13 in the vertical direction. It extends with a predetermined length. The plurality of slits 14 are arranged at equal intervals in the circumferential direction of the fixed cylinder portion 12. By forming such a plurality of slits 14, the upper end portion of the fixed cylinder portion 12 including the tapered male screw portion 13 can be elastically expanded and contracted in the radial direction.
スリット１４は、必ずしも固定筒部１２の上端面から形成する必要がなく、固定筒部１２の上端面から若干下方へ離間した箇所から下方へ向かって形成してもよい。このようにした場合には、固定筒部１２の上端部のうち、スリット１４の長手方向の中央部に位置する部分が径方向へ弾性的に拡縮径可能になる。そこで、このような場合には、テーパ雄ねじ部１３がスリット１４の長手方向の中央に位置するように配置される。 The slit 14 does not necessarily have to be formed from the upper end surface of the fixed cylinder portion 12, and may be formed downward from a position slightly spaced downward from the upper end surface of the fixed cylinder portion 12. In this case, a portion of the upper end portion of the fixed cylinder portion 12 that is located at the center portion in the longitudinal direction of the slit 14 can be elastically expanded and contracted in the radial direction. Therefore, in such a case, the tapered male screw portion 13 is disposed so as to be located at the center in the longitudinal direction of the slit 14.
支柱２は、図２に示すように、断面円形のパイプからなるものであり、一定の外径を有している。そして、支柱２の下端部が固定筒部１２に挿入されている。支柱２は、必ずしも全長にわたって一定の外径にする必要がなく、固定筒部１２に挿入される下端部とそれより上側の部分とで異なる外径にしてもよい。支柱２の固定筒部１２に挿入される下端部は、固定筒部１２に容易に挿入し得る範囲においてできる限り大径にすることが望ましく、少なくとも固定筒部１２の上端部が弾性的に縮径することにより、固定筒部１２の内周面が支柱２の外周面に環状に押圧接触することができるような外径を有するものとされる。支柱２は、中空のパイプを用いることなく、中実であってもよい。ただし、支持装置Ａを軽量化してその搬送費の軽減等を図るためには、中空のものを採用することが望ましい。 As shown in FIG. 2, the support column 2 is made of a pipe having a circular cross section and has a constant outer diameter. And the lower end part of the support | pillar 2 is inserted in the fixed cylinder part 12. As shown in FIG. The support column 2 does not necessarily have a constant outer diameter over the entire length, and may have different outer diameters at the lower end portion inserted into the fixed cylinder portion 12 and the portion above it. It is desirable that the lower end portion inserted into the fixed cylinder portion 12 of the support column 2 is as large as possible within a range where it can be easily inserted into the fixed cylinder portion 12, and at least the upper end portion of the fixed cylinder portion 12 is elastically contracted. By setting the diameter, the inner peripheral surface of the fixed cylinder portion 12 has an outer diameter that can be annularly pressed into contact with the outer peripheral surface of the support column 2. The support column 2 may be solid without using a hollow pipe. However, in order to reduce the weight of the support device A and reduce its transportation cost, it is desirable to adopt a hollow device.
上記雌ねじ部材３は、図６及び図７に示すように、円筒状をなしており、その内部には、支柱２の固定筒部１２から上方へ突出部した部分が相対回転可能に、かつ上下方向へ相対移動可能に挿通されている。雌ねじ部材３の内周面の下端部及び上端部には、雌ねじ部材３の上下方向における中央側から外側（下側及び上側）へ向かってそれぞれ拡径するテーパ雌ねじ部３１，３２がそれぞれ形成されている。このテーパ雌ねじ部３１，３２は、同一のねじ寸法を有しており、いずれもテーパ雄ねじ部１３に螺合可能である。したがって、雌ねじ部材３は、上下を図示の状態と逆の状態にしたとしても固定筒部１２に螺合可能である。ただし、雌ねじ部材３は、必ずしもこのように形成する必要がなく、テーパ雌ねじ部３２については省略してもよい。 As shown in FIGS. 6 and 7, the female screw member 3 has a cylindrical shape, and a portion protruding upward from the fixed cylinder portion 12 of the support column 2 is relatively rotatable and vertically It is inserted so that it can move relative to the direction. Tapered female thread portions 31 and 32 are formed on the lower end portion and upper end portion of the inner peripheral surface of the female screw member 3 so as to increase in diameter from the center side in the vertical direction to the outer side (lower side and upper side), respectively. ing. The taper female screw portions 31 and 32 have the same screw size, and both can be screwed into the taper male screw portion 13. Therefore, the female screw member 3 can be screwed into the fixed cylinder portion 12 even when the upper and lower sides are reversed to the illustrated state. However, the female screw member 3 is not necessarily formed in this way, and the taper female screw portion 32 may be omitted.
雌ねじ部材３の外周面には、上下方向へ延びる突条３３が一対形成されている。一対の突条３３，３３は、周方向へ１８０°離れて配置されている。各突条３３は、ねじ回し工具（図示せず）の先端部を係合させるためのものであり、突条３３に係合したねじ回し工具によって雌ねじ部材３を正逆方向へ回転させることができる。雌ねじ部材３の外周面には、一対の突条３３，３３に代えて、六角形のスパナ掛け部、その他のねじ回し工具を係合させるための係合部を形成してもよい。 A pair of protrusions 33 extending in the vertical direction are formed on the outer peripheral surface of the female screw member 3. A pair of protrusion 33,33 is arrange | positioned 180 degrees apart in the circumferential direction. Each protrusion 33 is for engaging the tip of a screwdriver tool (not shown). The screwdriver 3 engaged with the protrusion 33 can rotate the female screw member 3 in the forward and reverse directions. it can. Instead of the pair of protrusions 33, 33, an engaging portion for engaging a hexagonal spanner hook or other screwdriver tool may be formed on the outer peripheral surface of the female screw member 3.
テーパ雌ねじ部３１をテーパ雄ねじ部１３に螺合させて締め付けると、両ねじ部３１，１３のテーパ作用により、固定筒部１２の上端部が径方向内側に向かって押圧される。この押圧力によって固定筒部１２の上端部が縮径される。その結果、固定筒部１２の上端部内周面が支柱２の下端部外周面に対し、スリット１４が形成された部分を除き、全周にわたって環状に押圧接触させられる。しかも、固定筒部１２の内周面は、その上端縁が支柱２の外周面に接触した後、固定筒部１２の上端縁から下側に続く部分が弾性変形することにより、上端縁から下側の部分も支柱２の外周面に接触する。つまり、固定筒部１２の上端部は、支柱２の外周面に対し上下方向へ所定の長さをもって押圧接触する。この結果、固定筒部１２の上端部内周面は、支柱２の外周面に対して環状に、しかも上下方向へ所定の長さをもって押圧接触する。したがって、支柱２が固定筒部１２に強固に固定される。これは、テーパ雌ねじ部３２をテーパ雄ねじ部１３に螺合させた場合も同様である。これから明らかなように、この支持装置Ａにおいては、テーパ雄ねじ部１３とテーパ雌ねじ部３１（３２）とによって固定機構が構成されている。 When the taper female screw portion 31 is screwed into the taper male screw portion 13 and tightened, the upper end portion of the fixed cylinder portion 12 is pressed radially inward by the taper action of both screw portions 31 and 13. This pressing force reduces the diameter of the upper end portion of the fixed cylinder portion 12. As a result, the inner peripheral surface of the upper end portion of the fixed cylinder portion 12 is pressed against the outer peripheral surface of the lower end portion of the support column 2 in an annular shape over the entire circumference except for the portion where the slit 14 is formed. In addition, the inner peripheral surface of the fixed cylindrical portion 12 is lowered from the upper end edge by elastically deforming a portion continuing from the upper end edge of the fixed cylindrical portion 12 to the lower side after the upper end edge contacts the outer peripheral surface of the support column 2. The side portion also contacts the outer peripheral surface of the support column 2. That is, the upper end portion of the fixed cylinder portion 12 is in press contact with the outer peripheral surface of the support column 2 with a predetermined length in the vertical direction. As a result, the inner peripheral surface of the upper end portion of the fixed cylinder portion 12 is in pressure contact with the outer peripheral surface of the support column 2 in a ring shape and with a predetermined length in the vertical direction. Therefore, the support column 2 is firmly fixed to the fixed cylinder portion 12. The same applies to the case where the tapered female screw portion 32 is screwed into the tapered male screw portion 13. As is clear from this, in this support device A, the taper male screw portion 13 and the taper female screw portion 31 (32) constitute a fixing mechanism.
支持部材４は、基部４１と可動部４２とを有している。基部４１は、支柱２の上端部にＵボルト５，５によって固定されている。可動部４２は、基部４１の上面に前後方向へ位置調節可能に載置されている。可動部４２は、ボルト４３によって基部４１に固定されている。可動部４２は、基部４１に対して移動不能にしてもよく、さらに基部４１に一体に形成してもよい。 The support member 4 has a base portion 41 and a movable portion 42. The base 41 is fixed to the upper end of the column 2 by U bolts 5 and 5. The movable portion 42 is placed on the upper surface of the base portion 41 so that the position thereof can be adjusted in the front-rear direction. The movable part 42 is fixed to the base part 41 with bolts 43. The movable part 42 may be immovable with respect to the base part 41, and may be formed integrally with the base part 41.
可動部４２には、上流側接続管４４及び下流側接続管４５が固定されている。上流側及び下流側接続管４４，４５は、いずれも逆「Ｕ」字状をなしており、左右方向へ互いに離間して配置されている。上流側接続管４４の下流側の端部及び下流側接続管４５の上流側の端部（いずれも、図２において左側の端部）は、可動部４２の前端部に固定されている。しかも、上流側接続管４４の下流側の端部には、ガスメータＭのガス導入口（図示せず）が接続ナット４６によって接続固定され、下流側接続管４５の上流側の端部には、ガスメータＭのガス導出口（図示せず）が接続ナット４７によって接続固定されている。これにより、ガスメータＭが支持装置Ａによって支持されている。 An upstream connection pipe 44 and a downstream connection pipe 45 are fixed to the movable portion 42. Both the upstream side and downstream side connection pipes 44 and 45 have an inverted “U” shape and are spaced apart from each other in the left-right direction. The downstream end of the upstream connecting pipe 44 and the upstream end of the downstream connecting pipe 45 (both are the left end in FIG. 2) are fixed to the front end of the movable portion 42. In addition, a gas inlet (not shown) of the gas meter M is connected and fixed to the downstream end of the upstream connection pipe 44 by a connection nut 46, and the upstream end of the downstream connection pipe 45 is connected to the upstream end of the upstream connection pipe 44. A gas outlet (not shown) of the gas meter M is connected and fixed by a connection nut 47. As a result, the gas meter M is supported by the support device A.
上流側接続管４４の上流側端部（図２において右側の端部）には、フレキシブルガス管からなる一次側ガス管Ｇ１の下流側の端部が周知の継手６を介して接続されている。一次側ガス管Ｇ１の上流側端部は、元栓（図示せず）に接続されている。したがって、元栓を開弁すると、ガスが一次側ガス管Ｇ１及び上流側接続管４４を介してガスメータＭに流入する。下流側接続管４５の下流側の端部には、フレキシブルガス管からなる二次側ガス管Ｇ２の上流側の端部が継手６を介して接続されている。二次側ガス管Ｇ２の下流側の端部は、ガス機器（図示せず）に接続されている。したがって、ガスメータＭに流入したガスは、ガスメータＭにおいて流量が計測された後、下流側接続管４５及び二次側ガス管Ｇ２を介してガス機器に供給される。 The upstream end of the upstream connection pipe 44 (the right end in FIG. 2) is connected to the downstream end of the primary gas pipe G1 made of a flexible gas pipe via a known joint 6. . The upstream end of the primary gas pipe G1 is connected to a main plug (not shown). Therefore, when the main plug is opened, the gas flows into the gas meter M through the primary side gas pipe G1 and the upstream side connection pipe 44. An upstream end of the secondary gas pipe G <b> 2 made of a flexible gas pipe is connected to the downstream end of the downstream connection pipe 45 via a joint 6. The downstream end of the secondary gas pipe G2 is connected to a gas device (not shown). Therefore, the gas flowing into the gas meter M is supplied to the gas equipment through the downstream connection pipe 45 and the secondary gas pipe G2 after the flow rate is measured in the gas meter M.
上記構成を有するガスメータの支持装置Ａにおいては、雌ねじ部材３を固定筒部１２に螺合させて締め付けると、固定筒部１２の上端部内周面が支柱２の外周面に対しスリット１４が形成された部分を除き、環状に、しかも上下方向へ所定の長さをもって押圧接触させられる。したがって、支柱２を固定筒部１２に強固に固定することができ、支柱２が傾斜することを防止することができる。よって、ガスメータＭの流量計測に誤差が生じることを防止することができる。 In the gas meter support device A having the above configuration, when the female screw member 3 is screwed into the fixed cylinder portion 12 and tightened, the slit 14 is formed on the inner peripheral surface of the upper end portion of the fixed cylinder portion 12 with respect to the outer peripheral surface of the column 2. Except for the above-mentioned parts, they are brought into pressure contact with a predetermined length in an annular and vertical direction. Therefore, the support column 2 can be firmly fixed to the fixed cylinder portion 12, and the support column 2 can be prevented from being inclined. Therefore, it is possible to prevent an error from occurring in the flow rate measurement of the gas meter M.
次に、この発明の他の実施の形態を説明する。なお、以下の実施の形態については、上記第１実施の形態と異なる構成についてのみ説明することとし、上記第１実施の形態と同様な構成部分には同一符号を付してその説明を省略する。 Next, another embodiment of the present invention will be described. In the following embodiment, only the configuration different from that of the first embodiment will be described, and the same components as those of the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted. .
図９は、この発明の第２の実施の形態を示す。この実施の形態においては、雌ねじ部材３にテーパ雌ねじ部３１，３２に代えて、ストレート雌ねじ部（ねじ部）３４，３５がそれぞれ形成されている。ストレート雌ねじ部３４，３５は、互いに同一のねじ寸法を有している。そこで、ストレート雌ねじ部３４についてのみ説明すると、ストレート雌ねじ部３４は、その全長にわたって一定のピッチ円径を有している。ストレート雌ねじ部３４のピッチ円径は、テーパ雄ねじ部１３の軸線方向（上下方向）の中間部におけるピッチ円径とほぼ同一に設定されている。しかも、ストレート雌ねじ部３４のピッチは、テーパ雄ねじ部１３のピッチと同一に設定されている。したがって、ストレート雌ねじ部３４は、少なくともその下端部がテーパ雄ねじ部１３に螺合可能であり、両ねじ部１３，３４を螺合させて雌ねじ部材３を締め付けると、固定筒部１２の上端部が径方向内側へ向かって縮径させられ、固定筒部１２の上端部内周面が支柱２の外周面に押圧接触させられる。したがって、この第２実施の形態においては、テーパ雄ねじ部１３及びストレート雌ねじ部３４（３５）によって固定機構が構成されており、この固定機構により支柱２が固定筒部１２に強固に固定される。 FIG. 9 shows a second embodiment of the present invention. In this embodiment, straight female screw portions (thread portions) 34 and 35 are formed in the female screw member 3 in place of the tapered female screw portions 31 and 32, respectively. The straight female thread portions 34 and 35 have the same thread dimensions. Thus, only the straight female thread portion 34 will be described. The straight female thread portion 34 has a constant pitch circle diameter over its entire length. The pitch circle diameter of the straight female thread portion 34 is set to be substantially the same as the pitch circle diameter in the intermediate portion in the axial direction (vertical direction) of the taper male thread portion 13. Moreover, the pitch of the straight female thread portion 34 is set to be the same as the pitch of the tapered male thread portion 13. Therefore, at least the lower end portion of the straight female screw portion 34 can be screwed to the tapered male screw portion 13, and when the female screw member 3 is tightened by screwing both the screw portions 13 and 34, the upper end portion of the fixed cylinder portion 12 is The diameter is reduced toward the inside in the radial direction, and the inner peripheral surface of the upper end portion of the fixed cylinder portion 12 is brought into press contact with the outer peripheral surface of the support column 2. Therefore, in the second embodiment, the taper male screw portion 13 and the straight female screw portion 34 (35) constitute a fixing mechanism, and the column 2 is firmly fixed to the fixed cylinder portion 12 by this fixing mechanism.
図１０は、この発明の第３実施の形態を示す。この実施の形態においては、固定筒部１２の上端部に、テーパ雄ねじ部１３に代えて一定のピッチ円径を有するストレート雄ねじ部（ねじ部）１５が形成されている。ストレート雄ねじ部１５のピッチ円径は、テーパ雌ねじ部３１（３２）の軸線方向の中間部におけるピッチ円径とほぼ同一であり、ストレート雄ねじ部１５のピッチは、テーパ雌ねじ部３１（３２）のピッチと同一に設定されている。したがって、ストレート雄ねじ部１５の少なくとも上端部は、テーパ雌ねじ部３１（３２）に螺合可能であり、両ねじ部１５，３１（３２）を螺合させて雌ねじ部材３を締め付けると、固定筒部１２の上端部が縮径される。これにより、支柱２が固定筒部１２に固定される。この第３実施の形態においては、ストレート雄ねじ部１５及びテーパ雌ねじ部３１（３２）によって固定機構が構成されている。 FIG. 10 shows a third embodiment of the present invention. In this embodiment, a straight male screw part (thread part) 15 having a constant pitch circle diameter is formed at the upper end part of the fixed cylinder part 12 instead of the tapered male screw part 13. The pitch circle diameter of the straight male screw portion 15 is substantially the same as the pitch circle diameter at the intermediate portion in the axial direction of the taper female screw portion 31 (32), and the pitch of the straight male screw portion 15 is the pitch of the taper female screw portion 31 (32). Are set to be the same. Therefore, at least the upper end portion of the straight male screw portion 15 can be screwed into the taper female screw portion 31 (32), and when the female screw member 3 is tightened by screwing both the screw portions 15, 31 (32), the fixed cylinder portion The upper end portion of 12 is reduced in diameter. Thereby, the support | pillar 2 is fixed to the fixed cylinder part 12. FIG. In the third embodiment, the straight male screw portion 15 and the taper female screw portion 31 (32) constitute a fixing mechanism.
図１１は、この発明の第４実施の形態を示す。この実施の形態においては、固定筒部１２の上端部にストレート雄ねじ部１５が形成されている。一方、雌ねじ部材３の下端部内周面には、ストレート雄ねじ部１５に螺合するストレート雌ねじ部３４が形成されている。さらに、ストレート雌ねじ部３４から上側に続く雌ねじ部材３の内周面には、テーパ面（傾斜面）３６及びストレート孔部３７が順次形成されている。テーパ面３６及びストレート孔部３７は、その軸線をストレート雌ねじ部３４の軸線と一致させて配置されている。テーパ面３６は、上方へ向かって縮径している。したがって、テーパ面３６の内径は、その下端において最大であり、最大内径は、ストレート雌ねじ部３４の谷の径と同等に設定されている。テーパ面３６の内径は、その上端において最小であり、最小内径は、固定筒部１２の内径と同等以下で、かつ支柱２の外径より若干大径に設定されている。ストレート孔部３７の内径は、テーパ面３６の最小内径と同一に設定されている。雌ねじ部材３の外周面には、突条３３に代えてスパナ掛け部等の係合部（図示せず）が形成されている。この係合部にスパナ等を係合させることにより、雌ねじ部材３を回転させることができる。 FIG. 11 shows a fourth embodiment of the present invention. In this embodiment, a straight male screw portion 15 is formed at the upper end portion of the fixed cylinder portion 12. On the other hand, a straight female screw portion 34 that is screwed into the straight male screw portion 15 is formed on the inner peripheral surface of the lower end portion of the female screw member 3. Further, a tapered surface (inclined surface) 36 and a straight hole portion 37 are sequentially formed on the inner peripheral surface of the female screw member 3 continuing upward from the straight female screw portion 34. The taper surface 36 and the straight hole portion 37 are arranged with their axes aligned with the axis of the straight female screw portion 34. The tapered surface 36 is reduced in diameter upward. Therefore, the inner diameter of the tapered surface 36 is the maximum at the lower end, and the maximum inner diameter is set to be equal to the diameter of the valley of the straight female thread portion 34. The inner diameter of the tapered surface 36 is the smallest at the upper end, and the minimum inner diameter is set to be equal to or smaller than the inner diameter of the fixed cylindrical portion 12 and slightly larger than the outer diameter of the support column 2. The inner diameter of the straight hole portion 37 is set to be the same as the minimum inner diameter of the tapered surface 36. An engaging portion (not shown) such as a spanner hanging portion is formed on the outer peripheral surface of the female screw member 3 in place of the protrusion 33. The female screw member 3 can be rotated by engaging a spanner or the like with the engaging portion.
ストレート雄ねじ部１５にストレート雌ねじ部３４を螺合させて雌ねじ部材３を所定の位置まで下方へ移動させると、テーパ面３６が固定筒部１２の上端面に接触する。その状態で雌ねじ部材３をさらに下方へねじ込むと、テーパ面３６が固定筒部１２の上端部をその径方向内側に押圧して縮径させる。この結果、固定筒部１２の上端部内周面が支柱２の外周面に環状に押圧接触させられ、支柱２が固定筒部１２に強固に固定される。これから明らかなように、この実施の形態においては、ストレート雄ねじ部１５、ストレート雌ねじ部３４及びテーパ面３６によって固定機構が構成されている。 When the straight female screw portion 34 is screwed into the straight male screw portion 15 and the female screw member 3 is moved downward to a predetermined position, the tapered surface 36 contacts the upper end surface of the fixed cylinder portion 12. When the female screw member 3 is further screwed down in this state, the tapered surface 36 presses the upper end portion of the fixed cylindrical portion 12 inward in the radial direction to reduce the diameter. As a result, the inner peripheral surface of the upper end portion of the fixed cylinder portion 12 is brought into annular contact with the outer peripheral surface of the support column 2, and the support column 2 is firmly fixed to the fixed tube portion 12. As is apparent from this, in this embodiment, the straight male screw portion 15, the straight female screw portion 34, and the tapered surface 36 constitute a fixing mechanism.
図１２及び図１３は、この発明の第５実施の形態を示す。この実施の形態においては、固定筒部１２が基板１１と別体に形成されており、基板１１の上面の中央部に固定筒部１２の下端部が溶接等の固定手段によって固定されている。勿論、固定筒部１２は、前述した各実施の形態と同様に、基板１１と一体に形成してもよい。 12 and 13 show a fifth embodiment of the present invention. In this embodiment, the fixed cylinder portion 12 is formed separately from the substrate 11, and the lower end portion of the fixed cylinder portion 12 is fixed to the central portion of the upper surface of the substrate 11 by fixing means such as welding. Of course, the fixed cylinder portion 12 may be formed integrally with the substrate 11 as in the above-described embodiments.
固定筒部１２には、座金７が挿入されている。座金７は、基板１１に溶接、接着等の固定手段によって固定されている。座金７は、円板状をなしており、その外径は、固定筒部１２の内径とほぼ同一に設定されている。座金７の上面の外周部には、テーパ部７１が形成されている。テーパ部７１は、その軸線を固定筒部１２の軸線と一致させた状態で配置されている。テーパ部７１は、径方向の外側から内側へ向かうにしたがって小径になっており、テーパ部７１の最小径は、支柱２の内径より小径になっている。したがって、支柱２を固定筒部１２に挿入すると、図１３に示すように、支柱２の下端面の内周縁がテーパ部７１に対しその径方向の中間部において接触する。すると、テーパ部７１の求心作用により、支柱２の下端部の軸線がテーパ部７１の軸線と一致させられ、ひいては固定筒部１２の軸線と一致させられる。これから明らかなように、この実施の形態においては、テーパ部７１及び支柱２の内周面の下端縁とによって求心機構が構成されている。 A washer 7 is inserted into the fixed cylinder portion 12. The washer 7 is fixed to the substrate 11 by fixing means such as welding or adhesion. The washer 7 has a disk shape, and its outer diameter is set to be substantially the same as the inner diameter of the fixed cylinder portion 12. A tapered portion 71 is formed on the outer peripheral portion of the upper surface of the washer 7. The taper portion 71 is disposed in a state where the axis thereof coincides with the axis of the fixed cylinder portion 12. The tapered portion 71 becomes smaller in diameter from the outer side toward the inner side, and the minimum diameter of the tapered portion 71 is smaller than the inner diameter of the support column 2. Therefore, when the support column 2 is inserted into the fixed cylinder portion 12, as shown in FIG. 13, the inner peripheral edge of the lower end surface of the support column 2 comes into contact with the taper portion 71 at the intermediate portion in the radial direction. Then, due to the centripetal action of the taper portion 71, the axis of the lower end portion of the support column 2 is made to coincide with the axis of the taper portion 71 and eventually to the axis of the fixed cylinder portion 12. As is clear from this, in this embodiment, the centripetal mechanism is constituted by the tapered portion 71 and the lower end edge of the inner peripheral surface of the support column 2.
前述したように、支柱２の下端部から所定距離だけ上方に離間した箇所においては、テーパ雄ねじ部１３とテーパ雌ねじ部３１とからなる固定機構により、支柱２の軸線と固定筒部１２の軸線とが一致させられている。しかも、この実施の形態においては、支柱２の下端部の軸線が固定筒部１２の軸線と一致させられている。したがって、支柱２の軸線を固定筒部１２の軸線とより一層正確に一致させることができ、支柱２を鉛直に立設させることができる。 As described above, at a position spaced upward by a predetermined distance from the lower end of the support column 2, the axis of the support column 2 and the axis of the fixed cylinder unit 12 are fixed by the fixing mechanism including the tapered male screw portion 13 and the tapered female screw portion 31. Are matched. In addition, in this embodiment, the axis of the lower end portion of the column 2 is made to coincide with the axis of the fixed cylinder portion 12. Therefore, the axis of the support column 2 can be more accurately matched with the axis of the fixed cylinder portion 12, and the support column 2 can be erected vertically.
なお、この実施の形態においては、支柱２の固定筒部１２への固定機構としてテーパ雄ねじ部１３とテーパ雌ねじ部３１とからなる固定機構が採用されているが、前述した他の固定機構を採用してもよい。これは、次に述べる第６実施の形態においても同様である。 In this embodiment, a fixing mechanism including the tapered male screw portion 13 and the tapered female screw portion 31 is employed as a fixing mechanism for the column 2 to the fixed cylinder portion 12, but the other fixing mechanism described above is employed. May be. The same applies to the sixth embodiment described below.
図１４及び図１５は、この発明の第６実施の形態を示す。この実施の形態においては、基板１１にテーパ部１６が直接形成されている。このテーパ部１６は、上記第５実施の形態のテーパ部７１に代わるものであり、その軸線を固定筒部１２の軸線と一致させて配置され、テーパ部７１と同一の寸法を有している。したがって、テーパ部１６の中間部には、支柱２の下端面の内周縁が環状に接触する。これによって、支柱２の下端部の軸線が固定筒部１２の軸線と一致させられる。 14 and 15 show a sixth embodiment of the present invention. In this embodiment, the taper portion 16 is directly formed on the substrate 11. The taper portion 16 is an alternative to the taper portion 71 of the fifth embodiment, and is arranged such that its axis coincides with the axis of the fixed cylinder portion 12 and has the same dimensions as the taper portion 71. . Therefore, the inner peripheral edge of the lower end surface of the support column 2 contacts the middle portion of the taper portion 16 in an annular shape. As a result, the axis of the lower end portion of the column 2 is matched with the axis of the fixed cylinder portion 12.
テーパ部１６は、基板１１を絞り加工、あるいはバーリング加工することによって形成することができる。そのような加工を容易にするために、基板１１には、テーパ部１６と軸線を一致させた貫通孔１７を形成しておくことが望ましい。勿論、貫通孔１７の内径は、テーパ部１６の最小径より若干小径に設定される。 The tapered portion 16 can be formed by drawing or burring the substrate 11. In order to facilitate such processing, it is desirable that the substrate 11 is formed with a through hole 17 whose axis is aligned with the tapered portion 16. Of course, the inner diameter of the through hole 17 is set to be slightly smaller than the minimum diameter of the tapered portion 16.
なお、この発明は、上記の実施の形態に限定されるものでなく、その要旨を逸脱しない範囲において各種の変形例を採用することができる。
例えば、上記第４の実施の形態では、雌ねじ部材３にテーパ面３６が形成されているが、このテーパ面３６に代えて、互いの間隔が下方へ向かって広がるように傾斜する複数の傾斜面を雌ねじ部材３の周方向へ等間隔に形成してもよい。
また、上記の実施の形態においては、テーパ面３６を雌ねじ部材３に形成しているが、固定筒部１２の外周面に下方へ向かって拡径するテーパ面を形成してもよい。その場合には、テーパ面がストレート雄ねじ部１５に続いてその下側に形成される。そして、テーパ面は、雌ねじ部材３の下端面に突き当たることにより、雌ねじ部材３の固定筒部１２へのねじ込みに伴って固定筒部１２の上端部を縮径させる。
さらに、上記の実施の形態においては、固定部材１の基板１１にテーパ部７１，１６を形成し、このテーパ部７１，１６を支柱２の内周面の下端縁に接触させているが、支柱２の内周面の下端開口部に軸線を支柱２の軸線と一致させたテーパ面（テーパ孔）を形成する一方、基板１１の軸線を固定筒部１２の軸線と一致させた円板を固定し、この円板の上面の上端縁を支柱２のテーパ面に接触させるようにしてもよい。
In addition, this invention is not limited to said embodiment, A various modification is employable in the range which does not deviate from the summary.
For example, in the fourth embodiment, the female screw member 3 is formed with the tapered surface 36, but instead of the tapered surface 36, a plurality of inclined surfaces that are inclined so that the distance between them expands downward. May be formed at equal intervals in the circumferential direction of the female screw member 3.
In the above-described embodiment, the tapered surface 36 is formed on the female screw member 3, but a tapered surface that expands downward may be formed on the outer peripheral surface of the fixed cylinder portion 12. In that case, the taper surface is formed on the lower side of the straight male screw portion 15 subsequent to the straight male screw portion 15. The tapered surface abuts against the lower end surface of the female screw member 3, thereby reducing the diameter of the upper end portion of the fixed cylinder portion 12 as the female screw member 3 is screwed into the fixed cylinder portion 12.
Furthermore, in the above embodiment, the taper portions 71 and 16 are formed on the substrate 11 of the fixing member 1, and the taper portions 71 and 16 are brought into contact with the lower end edge of the inner peripheral surface of the column 2. A taper surface (tapered hole) is formed in the lower end opening of the inner peripheral surface of 2 with the axis line coincident with the axis line of the support column 2, while a disc having the axis line of the substrate 11 aligned with the axis line of the fixed cylinder 12 is fixed And you may make it the upper end edge of the upper surface of this disk contact the taper surface of the support | pillar 2.
この発明に係るガスメータの支持装置は、例えば集合住宅のパイプシャフト内にガスメータを設置する際に利用することができる。 The gas meter support device according to the present invention can be used, for example, when a gas meter is installed in a pipe shaft of an apartment house.
Ａ ガスメータの支持装置
Ｍ ガスメータ
１ 固定部材
２ 支柱
３ 雌ねじ部材
４ 支持部材
１２ 固定筒部
１３ テーパ雄ねじ部（ねじ部）
１４ スリット
１５ ストレート雄ねじ部（ねじ部）
１６ テーパ部（求心機構）
３１ テーパ雌ねじ部（ねじ部）
３２ テーパ雌ねじ部（ねじ部）
３４ ストレート雌ねじ部（ねじ部）
３５ ストレート雌ねじ部（ねじ部）
３６ テーパ面（傾斜面）
７１ テーパ部（求心機構）
A Gas meter support device M Gas meter 1 Fixing member 2 Support column 3 Female screw member 4 Support member 12 Fixed cylinder part 13 Tapered male screw part (screw part)
14 Slit 15 Straight male threaded part (threaded part)
16 Taper (centripetal mechanism)
31 Taper female thread (thread)
32 Taper female thread (thread)
34 Straight female thread (thread)
35 Straight female thread (thread)
36 Tapered surface (inclined surface)
71 Taper (centripetal mechanism)
Claims (4)
上記固定筒部の上端部に、上下方向に延びる複数のスリットが上記固定筒部の周方向へ互いに離して形成されることにより、上記固定筒部の上端部が拡縮径可能とされ、
上記支柱に雌ねじ部材が上下方向へ移動可能に、かつ回動可能に外挿されるとともに、この雌ねじ部材が上記固定筒部の上端部に螺合され、
上記固定筒部と上記雌ねじ部材との間には、上記雌ねじ部材の上記固定筒部へのねじ込み伴って上記固定筒部の上記スリットが形成された上端部を縮径させて、上記固定筒部の内周面を上記支柱の外周面に環状に押し付け、それによって上記支柱を上記固定筒部に固定する固定機構が設けられ、
上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の少なくとも一方が下方に向かって拡径するテーパねじ部とされ、このテーパねじ部と、上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の他方とによって上記固定機構が構成され、
上記テーパねじ部が上記固定筒部に形成されたテーパ雄ねじ部であり、上記他方のねじ部が上記雌ねじ部材に形成され、かつ上記テーパ雄ねじ部に螺合可能なストレート雌ねじ部であることを特徴とするガスメータの支持装置。 A fixing member having a fixed cylinder portion whose longitudinal direction is directed in the vertical direction, a support column erected by inserting a lower end portion into the fixed cylinder portion, and a support member provided at the upper end portion of the support column. A gas meter support device in which a gas meter is attached to the support member;
A plurality of slits extending in the vertical direction are formed in the upper end portion of the fixed tube portion so as to be separated from each other in the circumferential direction of the fixed tube portion, so that the upper end portion of the fixed tube portion can be expanded and contracted.
The female screw member is externally attached to the support column so that the female screw member can move in the vertical direction and is rotatable, and the female screw member is screwed to the upper end portion of the fixed cylinder portion.
Between the fixed cylinder part and the female thread member, the upper end part where the slit of the fixed cylinder part is formed is reduced in diameter as the female screw member is screwed into the fixed cylinder part, and the fixed cylinder part A fixing mechanism for pressing the inner circumferential surface of the column to the outer circumferential surface of the column in a ring shape, thereby fixing the column to the fixed cylinder part,
At least one of the threaded portions of the fixed tube portion and the female screw member that are screwed together is a tapered screw portion that expands downward, and the taper screw portion, the fixed tube portion, and the female screw member are screwed together. The fixing mechanism is constituted by the other of the screw parts to be
The taper screw part is a taper male screw part formed on the fixed cylinder part, and the other screw part is a straight female screw part formed on the female screw member and screwable with the taper male screw part. support apparatus of Ruga Sumeta be with.
上記固定筒部の上端部に、上下方向に延びる複数のスリットが上記固定筒部の周方向へ互いに離して形成されることにより、上記固定筒部の上端部が拡縮径可能とされ、
上記支柱に雌ねじ部材が上下方向へ移動可能に、かつ回動可能に外挿されるとともに、この雌ねじ部材が上記固定筒部の上端部に螺合され、
上記固定筒部と上記雌ねじ部材との間には、上記雌ねじ部材の上記固定筒部へのねじ込み伴って上記固定筒部の上記スリットが形成された上端部を縮径させて、上記固定筒部の内周面を上記支柱の外周面に環状に押し付け、それによって上記支柱を上記固定筒部に固定する固定機構が設けられ、
上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の少なくとも一方が下方に向かって拡径するテーパねじ部とされ、このテーパねじ部と、上記固定筒部及び上記雌ねじ部材の互いに螺合するねじ部の他方とによって上記固定機構が構成され、
上記テーパねじ部が上記雌ねじ部材に形成されたテーパ雌ねじ部であり、上記他方のねじ部が上記固定筒部に形成され、かつ上記テーパ雌ねじ部に螺合可能なストレート雄ねじ部であることを特徴とするガスメータの支持装置。 A fixing member having a fixed cylinder portion whose longitudinal direction is directed in the vertical direction, a support column erected by inserting a lower end portion into the fixed cylinder portion, and a support member provided at the upper end portion of the support column. A gas meter support device in which a gas meter is attached to the support member;
A plurality of slits extending in the vertical direction are formed in the upper end portion of the fixed tube portion so as to be separated from each other in the circumferential direction of the fixed tube portion, so that the upper end portion of the fixed tube portion can be expanded and contracted.
The female screw member is externally attached to the support column so that the female screw member can move in the vertical direction and is rotatable, and the female screw member is screwed to the upper end portion of the fixed cylinder portion.
Between the fixed cylinder part and the female thread member, the upper end part where the slit of the fixed cylinder part is formed is reduced in diameter as the female screw member is screwed into the fixed cylinder part, and the fixed cylinder part A fixing mechanism for pressing the inner circumferential surface of the column to the outer circumferential surface of the column in a ring shape, thereby fixing the column to the fixed cylinder part,
At least one of the threaded portions of the fixed tube portion and the female screw member that are screwed together is a tapered screw portion that expands downward, and the taper screw portion, the fixed tube portion, and the female screw member are screwed together. The fixing mechanism is constituted by the other of the screw parts to be
The taper screw portion is a taper female screw portion formed on the female screw member, and the other screw portion is a straight male screw portion formed on the fixed cylinder portion and screwable with the taper female screw portion. support apparatus of Ruga Sumeta be with.
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