JP2001108178A - Connecting pipe for gas meter connection - Google Patents
Connecting pipe for gas meter connectionInfo
- Publication number
- JP2001108178A JP2001108178A JP28251399A JP28251399A JP2001108178A JP 2001108178 A JP2001108178 A JP 2001108178A JP 28251399 A JP28251399 A JP 28251399A JP 28251399 A JP28251399 A JP 28251399A JP 2001108178 A JP2001108178 A JP 2001108178A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- gas meter
- nut
- base
- connecting pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 238000007789 sealing Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 3
- 210000002310 elbow joint Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
(57)【要約】
【課題】 ガスメータ接続作業の軽減、作業性向上、配
管周りの美感の向上、ガスメータ設置強度を高めて接続
部からの破損や漏れのない、安全性を高めたガスメータ
接続用連結管を提供する。
【解決手段】 外面に耐食性皮膜２２を被覆した自立管
を逆Ｕ字状に曲げてベント管２５を形成し、一端部にガ
スメータの口金と接続するナット２６を係合し、他端部
に配管と接続するナット２７を係合し、配管とガスメー
タ間を接続するガスメータ接続用連結管である。ベント
管の両端部外周面の環状凹溝２４にスナップリング２８
を装着してナットを係合し、また端部にテーパ面２４を
設けてナット締付け力を大にし耐火性能を確保した。ガ
スメータ口金４０との接続部は、管端内周面と口金内周
面とに望む案内筒３１、３２と中央部に鍔３３を有すガ
イドコア３０を装着して接続する。配管との接続部は、
配管端部と接続するねじ継手５１にナット２７を螺合し
て接続する。
(57) [Abstract] [Problem] For gas meter connection with reduced safety, improved workability, improved aesthetics around piping, increased strength of gas meter installation and no breakage or leakage from the connection part, enhanced safety Provide a connecting tube. SOLUTION: A self-standing tube having an outer surface coated with a corrosion resistant film 22 is bent into an inverted U-shape to form a vent tube 25, a nut 26 connected to a base of a gas meter is engaged at one end, and a pipe is connected at the other end. And a connection pipe for connecting the gas meter and a nut 27 for connecting the pipe and the gas meter. A snap ring 28 is formed in the annular groove 24 on the outer peripheral surface of both ends of the vent pipe.
The nut was engaged with the nut, and a tapered surface 24 was provided at the end to increase the nut tightening force and secure fire resistance. The connection part with the gas meter base 40 is attached by connecting the guide cores 31 and 32 desired on the inner peripheral surface of the pipe end and the inner peripheral surface of the base with the guide core 30 having the flange 33 at the center. The connection with the piping
The nut 27 is screwed and connected to the threaded joint 51 connected to the pipe end.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば埋設配管か
ら立ち上がるガス管と地上に設置するガスメータとを接
続するためのガスメータ接続用連結管に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas meter connecting pipe for connecting a gas pipe rising from a buried pipe to a gas meter installed on the ground, for example.
【０００２】[0002]
【従来の技術】都市ガスを使用している各家庭のガスの
使用量を検出するためにガスメータが使用されており、
ガスメータ周りの配管が種々行われている。その代表的
な一例を図３で示す。この従来例では供給元の埋設管よ
り立ち上げられた一次側のガス管１と供給先の建家内に
配管する二次側立ち下げ管２を建家の外壁３又は埋設部
の補強ブロック４に支持金具５で固定して、一次側立ち
上げ管１の途中には元栓６を配管し、この一次側と二次
側のガス管１、２の上部にメスオスエルボ継手７やエル
ボ継手８、自在継手９等を組み合わせて立ち上げ管１と
立ち下げ管２の前側でガスメータ１０上部の流入口１１
と流出口１２に接続しガスメータ１０を吊り下げ支持し
て配管固定するものである。2. Description of the Related Art Gas meters are used to detect the amount of gas used in households using city gas.
There are various pipes around the gas meter. A typical example is shown in FIG. In this conventional example, a primary side gas pipe 1 raised from a buried pipe of a supply source and a secondary downfall pipe 2 piped into a supply destination building are attached to an outer wall 3 of a building or a reinforcing block 4 of a buried portion. A main plug 6 is fixed in the middle of the primary riser pipe 1 while being fixed with the support fitting 5, and a female male elbow joint 7, an elbow joint 8, and a universal joint are provided above the primary and secondary gas pipes 1, 2. 9 in combination with the inlet 11 above the gas meter 10 in front of the riser 1 and the faller 2.
The gas meter 10 is connected to the outlet 12 and is suspended and supported to fix the pipe.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のガスメータ
１０周りの配管では、ガスメータ１０と接続するまでに
多くの継手を要し、また接続部が多く、外観上きれいに
芯出し配管するのに熟練した技術を要していた。また接
続部分が多いため、多くの配管時間を要し、接続部から
の破損や漏れの恐れもあった。本発明は上記の問題点を
解消して、ガスメータ接続作業の軽減、作業性向上、配
管周りの美感の向上、ガスメータ設置強度を高めて接続
部からの破損や漏れのない、安全性を高めたガスメータ
接続用連結管を提供するものである。The conventional piping around the gas meter 10 requires a large number of joints before connecting to the gas meter 10 and has a large number of connections, so that it is skillful to perform centering piping cleanly in appearance. It required skill. In addition, since there are many connecting parts, a lot of piping time is required, and there is a risk of damage or leakage from the connecting parts. The present invention solves the above problems, reduces the work of connecting the gas meter, improves the workability, improves the aesthetics around the piping, increases the installation strength of the gas meter, prevents breakage and leakage from the connection part, and enhances safety. A connection pipe for connecting a gas meter is provided.
【０００４】[0004]
【課題を解決するための手段】本発明の要旨は、少なく
とも外面に耐食性皮膜を被覆した自立管を曲げて逆Ｕ字
状のベント管を形成し、該ベント管の端部に夫々ナット
を係合し、一端側のナットはガスメータの口金と螺合
し、他端側のナットは配管と接続する継手と螺合し、地
中から立ち上がる配管と地上に設置するガスメータ間を
接続することを特徴とするガスメータ接続用連結管であ
る。SUMMARY OF THE INVENTION The gist of the present invention is to form an inverted U-shaped vent pipe by bending a self-supporting pipe having at least an outer surface coated with a corrosion-resistant coating, and engaging nuts with ends of the vent pipe. The nut on one end is screwed with the base of the gas meter, the nut on the other end is screwed with the joint connected to the pipe, and connects between the pipe rising from the ground and the gas meter installed on the ground. Is a connecting pipe for connecting a gas meter.
【０００５】上記において耐食性皮膜は耐候性を有する
合成樹脂皮膜であることを特徴とする。上記において耐
食性皮膜は溶融亜鉛メッキであることを特徴とする。上
記において耐食性皮膜はナイロンコーティング皮膜であ
ることを特徴とする。[0005] In the above, the corrosion-resistant film is a synthetic resin film having weather resistance. In the above, the corrosion resistant film is characterized by being hot-dip galvanized. In the above, the corrosion-resistant film is a nylon coating film.
【０００６】上記において、前記ベント管の端部に内面
から端部に向かって拡径するテーパ面を形成し、前記ベ
ント管に係合したナットで該ベント管の端部を押し付け
て金属面同士で当接するようにしたことを特徴とするガ
スメータ接続用連結管である。上記において、ベント管
の端部内周に鍔部材を固定し該鍔部材の鍔で前記ナット
を係合したことを特徴とするガスメータ接続用連結管で
ある。[0006] In the above, a tapered surface is formed at the end of the vent pipe so as to increase in diameter from the inner surface to the end, and the end of the vent pipe is pressed by a nut engaged with the vent pipe so that the metal surfaces are joined to each other. A connecting pipe for connecting a gas meter, wherein the connecting pipe is configured to abut. In the above, there is provided a connecting pipe for connecting a gas meter, wherein a flange member is fixed to an inner periphery of an end portion of the vent pipe, and the nut is engaged with the flange of the flange member.
【０００７】上記において鍔部材は、ベント管の内周に
望む管筒とガスメータ口金の内周に望む口金筒と中央部
に鍔とを有し、該口金筒と鍔にパッキンを装着してガス
メータの口金に接続することを特徴とするガスメータ接
続用連結管である。上記においてベント管の他端側配管
との接続部は、配管の端部と接続する継手に前記ナット
に螺合するおねじを形成し、該おねじに前記ナットを螺
合して配管と接続することを特徴とするガスメータ接続
用連結管である。In the above, the flange member has a pipe tube desired on the inner periphery of the vent tube, a base tube desired on the inner periphery of the gas meter base, and a flange at the center. And a connection pipe for connecting a gas meter. In the above, the connection portion of the vent pipe with the other end side pipe is formed with a male screw that is screwed to the nut at a joint connected to the end of the pipe, and the nut is screwed with the male screw to connect with the pipe. It is a connecting pipe for connecting a gas meter.
【０００８】[0008]
【作用】本発明は上記の構成であって、逆Ｕ字状に曲げ
られたベント管の端部にナットを係合させているから、
下部の配管と上部のガスメータ間の接続はナットを締め
るだけで行え、通常のねじ込み継手の様に管自体を回転
させる必要が無く、容易に接続できる。また、予め曲げ
られたベント管を用いているから、接続個所が最小限で
施工が容易で配管仕上がり状態もきれいに配管できる。
また外面は耐食性の皮膜を形成しているので、腐食の問
題が無く、自立管で設けてあるからガスメータを吊り下
げ状態で支持固定配管ができる。According to the present invention, the nut is engaged with the end of the bent pipe bent in an inverted U-shape.
The connection between the lower pipe and the upper gas meter can be made simply by tightening the nut, and there is no need to rotate the pipe itself as in a normal screwed joint, and the connection can be made easily. In addition, since the bent pipe is used in advance, the number of connection points is minimized, the construction is easy, and the finished pipe can be neatly cleaned.
In addition, since the outer surface is formed with a corrosion-resistant film, there is no problem of corrosion, and since it is provided by a self-standing tube, the supporting and fixing pipe can be formed while the gas meter is suspended.
【０００９】ベント管の端部は端部内面に設けたテーパ
面により、ナットで締めつけられるベント管端部の接触
面積が小さくなって、単位接触面積当たり締めつけ圧力
が大きくなり金属面同士でのシールが果たされる。この
ためパッキンによるシールと併せて２重シールとなり、
また万一の火災時のパッキンが消失した場合での安全性
を確保する。The end of the vent pipe has a tapered surface provided on the inner surface of the end, so that the contact area of the end of the vent pipe, which is tightened by a nut, is reduced, the tightening pressure per unit contact area is increased, and the metal surfaces are sealed. Is fulfilled. For this reason, it becomes a double seal together with the seal by packing,
In addition, safety should be ensured in the event that the packing is lost in the event of a fire.
【００１０】ベント管の端部内周に鍔部材を固定するこ
とにより、鍔部材の鍔をナットに係合してベント管にナ
ットを係合させることができる。鍔部材は、ベント管の
内周に望む管筒とガスメータ口金の内周に望む口金筒と
中央部に鍔とを有し、口金筒と鍔にパッキンを装着して
ガスメータの口金に接続するから、ベント管とガスメー
タ口金とは正確に軸芯が合致し、確実容易に正しく接続
が行える。ベント管の他端側配管との接続部は、配管の
端部と接続する継手におねじを形成して、ナットを螺合
するから、ナットを締めつけるだけで接続できる。この
場合もベント管の端部内周にテーパ面を設けてあること
によって、単位接触面積当たりのナットで締めつける締
付け圧が大きくなり、金属面同士のシールが果たされ、
万一の場合の耐火シール性能を果たす。[0010] By fixing the flange member to the inner periphery of the end of the vent pipe, the flange of the flange member can be engaged with the nut, and the nut can be engaged with the vent pipe. The flange member has a pipe tube desired on the inner periphery of the vent pipe, a base tube desired on the inner periphery of the gas meter base, and a flange at the center, and a packing is attached to the base tube and the flange to connect to the base of the gas meter. The axis of the vent pipe and the gas meter base are precisely aligned, and the connection can be made easily and correctly. The connection part of the vent pipe with the other end side pipe is formed by forming a screw on a joint connected to the end of the pipe and screwing the nut, so that connection can be made only by tightening the nut. Also in this case, by providing the tapered surface on the inner periphery of the end of the vent pipe, the tightening pressure for tightening with the nut per unit contact area is increased, and the metal surfaces are sealed,
Performs fireproof sealing performance in the event of an emergency.
【００１１】[0011]
【実施例】以下本発明の実施例を図１ないし図３を参照
して説明する。図１は本発明の一実施例を示すガスメー
タ接続用連結管２０を示す。ガス配管用鋼管２１の外面
にナイロンコーティング２２を施し、両端部外面に鋼管
２１に達する環状溝２３、２３を加工し、また両端部内
面に端部に向かって拡がるテーパ面２４、２４を加工し
て、ベンダー機で一方の側を半径約４０Ｒで曲げ加工
し、ベント管２５を設けてある。テーパ面２４、２４は
端面が鋭利になるように設けるとナット２６で締付けた
ときの単位接触面積当たりの締付け圧が大きくなり、金
属面同士でのシールが果たされるのでＯリング３５、５
５でのシールと併せて２重シールとなり、また耐火災性
能を確保できる。ナイロンコーティング２２は鋼管２１
に密着して被覆され耐候性に優れており、長期の耐食性
を有する。尚、ナイロンコーティングに代えて他の耐食
性合成樹脂被膜でも良く、また金属メッキ等の耐食性被
膜であっても良い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a connecting pipe 20 for connecting a gas meter according to an embodiment of the present invention. Nylon coating 22 is applied to the outer surface of the steel pipe 21 for gas piping, annular grooves 23, 23 reaching the steel pipe 21 are formed on the outer surfaces of both ends, and tapered surfaces 24, 24 expanding toward the ends are formed on the inner surfaces of both ends. Then, one side is bent at a radius of about 40R by a bender machine, and a vent pipe 25 is provided. If the tapered surfaces 24, 24 are provided so that the end surfaces are sharp, the tightening pressure per unit contact area when tightening with the nut 26 increases, and the sealing between the metal surfaces is achieved.
In addition to the seal of 5, a double seal is provided, and the fire resistance performance can be secured. Nylon coating 22 is steel pipe 21
It has excellent weather resistance because it is coated in close contact with, and has long-term corrosion resistance. Incidentally, instead of the nylon coating, another corrosion resistant synthetic resin film may be used, or a corrosion resistant film such as metal plating may be used.
【００１２】このベント管２５の端部にナット２６、２
７を通して、前記環状溝２３、２３に鋼製のスナップリ
ング２８、２８を嵌着し、スナップリング２８によって
ベント管２５にナット２６、２７を係合する。ナット２
６はガスメータ４０の口金に螺合締結される。このベン
ト管の端部接続部に鍔部材３０を装着して接続してあ
る。鍔部材３０は、ベント管端部内面に望む管筒３１と
ガスメータ口金４０の内面に望む口金筒３２を有し、こ
の中央部に鍔３３を設けてあり、管筒３１の外面にＯリ
ング３５と口金筒３２の外面にガスケット３４を装着し
て、ベント管２５端部と口金４０との間を密封シールす
る。鍔部材３０の装着によってベント管２５とガスメー
タ口金４０との芯が正確に合致し、ナット２６を正確に
且つ容易に口金４０に螺合締結できる。At the end of the vent pipe 25, nuts 26, 2
7, steel snap rings 28, 28 are fitted into the annular grooves 23, 23, and nuts 26, 27 are engaged with the vent pipe 25 by the snap ring 28. Nut 2
Reference numeral 6 is screwed to the base of the gas meter 40. A flange member 30 is attached to and connected to an end connection portion of the vent pipe. The flange member 30 has a tube 31 desired on the inner surface of the end of the vent tube and a base tube 32 desired on the inner surface of the gas meter base 40. A flange 33 is provided at the center thereof, and an O-ring 35 is provided on the outer surface of the tube 31. Then, a gasket 34 is attached to the outer surface of the base tube 32 to hermetically seal the space between the end of the vent pipe 25 and the base 40. By mounting the flange member 30, the core of the vent pipe 25 and the gas meter base 40 are accurately aligned, and the nut 26 can be accurately and easily screwed to the base 40.
【００１３】尚上記において、鍔部材３０とＯリング３
５を省略して、ベント管２５の端部と口金４０との間に
ガスケット３４を装着した状態でナット２６を口金４０
に螺合締結しても良い。この場合、ベンド管の端部内面
にテーパ面２４を設けてあるので、ガスケット３４との
接触面積が少なく、単位面積当たりの締付け接触圧力が
大きくなるのでシール性がよく確実にシールが果たされ
る。In the above description, the flange member 30 and the O-ring 3
5 is omitted, and the nut 26 is connected to the base 40 with the gasket 34 attached between the end of the vent pipe 25 and the base 40.
May be screwed together. In this case, since the tapered surface 24 is provided on the inner surface of the end portion of the bend pipe, the contact area with the gasket 34 is small, and the tightening contact pressure per unit area is large, so that the sealing performance is improved and the sealing is reliably achieved.
【００１４】他方配管５０との接続部は、配管５０と螺
合するねじ継手５１が接続される。ねじ継手５１の一端
が配管５０の雄ねじに接続する雌ねじ５２と、他端がナ
ット２７に螺合する雄ねじ５３とを有し、雄ねじ５３の
端部はベント管２５の端部内面に望む案内筒５４を設け
てある。案内筒５４にＯリング５５を装着してベント管
２５の端部内面に設けたテーパ面２４でＯリング５５を
圧縮しシール接続される。この場合もテーパ面２４は端
部の鋼管２１の外面まで延びて、先端が鋭利な突起状に
なって案内筒５４の段部に締めつけられるので、金属面
同士のシールが果たされ、Ｏリング５５でのシールと併
せて２重シールとなり、またＯリング５５が消失した場
合でのメタルシールが果たされ、耐火災シール性能を確
保する。尚、上記においてベント管２５とナット２６、
２７の係合は、上記に限らず別の手段、例えばベント管
２５にナットを挿入後、ベント管２５の端部を拡径して
ナット２６、２７と係合しても良く、簡単部外面にナッ
トに係合する突起物を溶接して設けても良い。On the other hand, a threaded joint 51 screwed to the pipe 50 is connected to the connection part with the pipe 50. One end of the threaded joint 51 has a female screw 52 connected to a male screw of the pipe 50, and the other end has a male screw 53 screwed into the nut 27, and the end of the male screw 53 is a guide tube desired on the inner surface of the end of the vent pipe 25. 54 are provided. The O-ring 55 is mounted on the guide cylinder 54, and the O-ring 55 is compressed and sealed by the tapered surface 24 provided on the inner surface of the end of the vent pipe 25. In this case as well, the tapered surface 24 extends to the outer surface of the steel pipe 21 at the end, and is formed into a sharp projection at the end and fastened to the step of the guide cylinder 54, so that the metal surfaces are sealed and the O-ring is formed. A double seal is provided in addition to the seal at 55, and a metal seal is performed when the O-ring 55 is lost, thereby ensuring fire-resistant sealing performance. In the above, the vent pipe 25 and the nut 26,
The engagement of the nut 27 is not limited to the above. For example, after inserting a nut into the vent pipe 25, the end of the vent pipe 25 may be expanded to engage with the nuts 26 and 27. A protrusion that engages with the nut may be provided by welding.
【００１５】図２は本発明の別の実施例を示すガスメー
タ接続用連結管２０を示す。前記実施例と異なる部分は
特にガスメータの口金４０と接続する部分である。本実
施例における口金４０に接続するナット２６とベント管
２５との係合は、前記実施例のスナップリング２８に代
えて、ベント管２５の端部内面に設けた雌ねじ２９に、
鍔部材３０の管筒３１に設けた雄ねじ３６を螺合して固
定してある。この場合もベント管２５の端部内面にはテ
ーパ面２４を設け、管筒３１の外面にＯリング３５を装
着してベント管のテーパ面２５との間でシールしてい
る。また口金筒３２はガスメータの口金４０内面に望
み、口金との軸芯が合致するようにしている。尚、ベン
ト管の端部内面に鍔部材３０を点溶接して固定しても良
い。他端側配管５０との接続部は前記実施例とほぼ同様
で、本実施例では配管５０側との接続部を雄ねじ５６で
行うようにしている。FIG. 2 shows a connecting pipe 20 for connecting a gas meter according to another embodiment of the present invention. The part different from the above embodiment is a part connected to the base 40 of the gas meter. The engagement between the nut 26 connected to the base 40 and the vent pipe 25 in this embodiment is performed by using a female screw 29 provided on the inner surface of the end of the vent pipe 25 instead of the snap ring 28 in the above embodiment.
A male screw 36 provided on the tube 31 of the flange member 30 is screwed and fixed. Also in this case, a tapered surface 24 is provided on the inner surface of the end of the vent pipe 25, and an O-ring 35 is attached to the outer surface of the tube cylinder 31 to seal between the tapered surface 25 of the vent pipe. The base cylinder 32 is desired on the inner surface of the base 40 of the gas meter, and the axis of the base is aligned with the base. The flange member 30 may be fixed by spot welding to the inner surface of the end of the vent pipe. The connection portion with the other end side pipe 50 is almost the same as that of the above-described embodiment. In this embodiment, the connection portion with the pipe 50 side is made by a male screw 56.
【００１６】[0016]
【発明の効果】以上説明の通り本発明のガスメータ接続
用連結管は、ガスメータとの接続、支持固定を最小限の
接続個所で行え、また両接続部にナットを係合している
ので相手の雄ねじに螺合するだけで容易に接続でき、配
管した後の仕上がり状態もきれいに行え、万一の火災時
のシール性能も確保している。また外面には耐食性皮膜
を形成しているので長期に亘って耐食性能を保持し、安
定したシール性能が実現できる。As described above, the connecting pipe for connecting a gas meter according to the present invention can connect and support the gas meter at a minimum number of connection points, and since nuts are engaged with both connection parts, the connection of the other party can be achieved. It can be easily connected simply by screwing it into a male screw, and the finished state after piping can be done neatly, ensuring the sealing performance in case of fire. Further, since a corrosion-resistant film is formed on the outer surface, the corrosion-resistant performance is maintained for a long time, and a stable sealing performance can be realized.
【図１】 本発明の一実施例を示すガスメータ口金と接
続した状態の部分断面図である。FIG. 1 is a partial cross-sectional view showing a state connected to a gas meter base according to an embodiment of the present invention.
【図２】 本発明の別の実施例を示すガスメータと接続
した状態の部分断面図である。FIG. 2 is a partial cross-sectional view of a state connected to a gas meter according to another embodiment of the present invention.
【図３】 従来のガスメータ周りの配管を示す図であ
る。FIG. 3 is a diagram showing piping around a conventional gas meter.
【符号の説明】 ２０ ガスメータ接続用連結管 ２１ 鋼管 ２２ ナイロンコーティング ２３ 環状凹
溝 ２４ テーパ面 ２５ ベント
管 ２６、２７ ナット ２８ スナッ
プリング ３０ 鍔部材 ３１ 管筒 ３２ 口金筒 ３３ 鍔 ３４ ガスケット ３５ Ｏリン
グ ３６ 雌ねじ ４０ ガスメ
ータ口金 ５０ 配管 ５１ ねじ継
手 ５２、 雌ねじ ５３ 雄ねじ ５４ 案内筒 ５５ Ｏリン
グ ５６ 雄ねじDESCRIPTION OF SYMBOLS 20 Connecting pipe for gas meter 21 Steel pipe 22 Nylon coating 23 Annular groove 24 Tapered surface 25 Vent pipe 26, 27 Nut 28 Snap ring 30 Flange member 31 Tube 32 Cap base 33 Flange 34 Gasket 35 O-ring 36 Female screw 40 Gas meter base 50 Piping 51 Screw joint 52, Female screw 53 Male screw 54 Guide cylinder 55 O-ring 56 Male screw
Claims (8)
た自立管を曲げて逆Ｕ字状のベント管を形成し、該ベン
ト管の端部に夫々ナットを係合し、一端側のナットはガ
スメータの口金と螺合し、他端側のナットは配管と接続
する継手と螺合し、地中から立ち上がる配管と地上に設
置するガスメータ間を接続することを特徴とするガスメ
ータ接続用連結管。An independent U-shaped bent pipe is formed by bending a self-standing pipe having at least an outer surface coated with a corrosion-resistant coating, and a nut is engaged with each end of the bent pipe. A connecting pipe for connecting a gas meter, wherein the connecting pipe is screwed with a base, and a nut on the other end is screwed with a joint connected to the pipe, so as to connect between a pipe rising from the ground and a gas meter installed on the ground.
樹脂皮膜であることを特徴とする請求項１記載のガスメ
ータ接続用連結管。2. The connecting pipe for connecting a gas meter according to claim 1, wherein said corrosion-resistant coating is a synthetic resin coating having weather resistance.
ることを特徴とする請求項１記載のガスメータ接続用連
結管。3. The connecting pipe for connecting a gas meter according to claim 1, wherein said corrosion-resistant coating is hot-dip galvanized.
グ皮膜であることを特徴とする請求項１記載のガスメー
タ接続用連結管。4. The connecting pipe according to claim 1, wherein the corrosion-resistant coating is a nylon coating.
向かって拡径するテーパ面を形成し、前記ベント管に係
合したナットで該ベント管の端部を押し付けて金属面同
士で当接するようにしたことを特徴とする請求項１乃至
４記載のガスメータ接続用連結管。5. An end portion of the vent pipe is formed with a tapered surface which increases in diameter from an inner surface to an end portion, and the end face of the vent pipe is pressed by a nut engaged with the vent pipe so that metal surfaces are joined together. 5. The connecting pipe for connecting a gas meter according to claim 1, wherein the connecting pipe is in contact with the connecting pipe.
定し該鍔部材の鍔で前記ナットを係合したことを特徴と
する請求項１乃至５記載のガスメータ接続用連結管。6. The connecting pipe for connecting a gas meter according to claim 1, wherein a flange member is fixed to an inner periphery of an end portion of the vent pipe, and the nut is engaged with a flange of the flange member.
筒とガスメータ口金の内周に望む口金筒と中央部に鍔と
を有し、該口金筒と鍔にパッキンを装着してガスメータ
の口金に接続することを特徴とする請求項１乃至６記載
のガスメータ接続用連結管。7. The gas meter according to claim 1, wherein the flange member has a pipe tube desired on the inner periphery of the vent pipe, a base tube desired on the inner periphery of the gas meter base, and a center flange. 7. The connecting pipe for connecting a gas meter according to claim 1, wherein the connecting pipe is connected to a base.
は、配管の端部と接続する継手に前記ナットに螺合する
おねじを形成し、該おねじに前記ナットを螺合して配管
と接続することを特徴とする請求項１乃至７記載のガス
メータ接続用連結管。8. A connection part of the vent pipe with the other end side pipe is formed with a male screw which is screwed to the nut at a joint connected to the pipe end, and the nut is screwed with the male screw. The connecting pipe for connecting a gas meter according to claim 1, wherein the connecting pipe is connected to the pipe by pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28251399A JP2001108178A (en) | 1999-10-04 | 1999-10-04 | Connecting pipe for gas meter connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28251399A JP2001108178A (en) | 1999-10-04 | 1999-10-04 | Connecting pipe for gas meter connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001108178A true JP2001108178A (en) | 2001-04-20 |
Family
ID=17653438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28251399A Pending JP2001108178A (en) | 1999-10-04 | 1999-10-04 | Connecting pipe for gas meter connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001108178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014102017A (en) * | 2012-11-19 | 2014-06-05 | Toyota Motor Corp | Coupling structure and chiller integrated inverter |
| CN110274114A (en) * | 2019-05-13 | 2019-09-24 | 湖南达道新能源开发有限公司 | A kind of antiseep Geothermal elbow pipe |
-
1999
- 1999-10-04 JP JP28251399A patent/JP2001108178A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014102017A (en) * | 2012-11-19 | 2014-06-05 | Toyota Motor Corp | Coupling structure and chiller integrated inverter |
| US9565792B2 (en) | 2012-11-19 | 2017-02-07 | Toyota Jidosha Kabushiki Kaisha | Connection structure and inverter |
| CN110274114A (en) * | 2019-05-13 | 2019-09-24 | 湖南达道新能源开发有限公司 | A kind of antiseep Geothermal elbow pipe |
| CN110274114B (en) * | 2019-05-13 | 2020-11-24 | 湖南达道新能源开发有限公司 | A leak-proof geothermal elbow |
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