JPH023138Y2 - - Google Patents

Info

Publication number
JPH023138Y2
JPH023138Y2 JP5025583U JP5025583U JPH023138Y2 JP H023138 Y2 JPH023138 Y2 JP H023138Y2 JP 5025583 U JP5025583 U JP 5025583U JP 5025583 U JP5025583 U JP 5025583U JP H023138 Y2 JPH023138 Y2 JP H023138Y2
Authority
JP
Japan
Prior art keywords
pipe
jig
rubber gasket
metal pipe
groove
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.)
Expired
Application number
JP5025583U
Other languages
Japanese (ja)
Other versions
JPS59155535U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5025583U priority Critical patent/JPS59155535U/en
Publication of JPS59155535U publication Critical patent/JPS59155535U/en
Application granted granted Critical
Publication of JPH023138Y2 publication Critical patent/JPH023138Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)
  • Sealing Devices (AREA)

Description

【考案の詳細な説明】 この考案は、比較的小径の金属パイプの気密試
験に有用な治具に関し、一端はこのパイプを気密
に取付け、他端は送気可能にするか又は封止され
た治具に関するものである。
[Detailed description of the invention] This invention relates to a jig useful for airtightness testing of relatively small-diameter metal pipes, with one end for air-tightly mounting the pipe and the other end for allowing air to flow or being sealed. It is related to jigs.

例えば光フアイバケーブルなどを内部に入れる
保護用の金属パイプは軽量であるが高度の気密性
を要求されており、光フアイバ複合架空地線を例
にとつて述べれば、これに用いられる金属パイプ
は外径4.0〜7.0mmφ、長さ1000〜2000mにも及び
この間に光フアイバケーブルが収納されているの
で、全長に亘り高度の気密性を保持しなければな
らない。
For example, protective metal pipes that house optical fiber cables are lightweight but require a high degree of airtightness. Taking optical fiber composite overhead ground wires as an example, the metal pipes used for these are lightweight. It has an outer diameter of 4.0 to 7.0 mmφ and a length of 1000 to 2000 m, and the optical fiber cable is housed in between, so a high degree of airtightness must be maintained over the entire length.

このため窒素ガスボンベに減圧弁、バルブ、ブ
ルポン型圧力計、ガス送入用治具、光フアイバ入
金属パイプ、めくら型治具を順次結合して、例え
ば5Kg/cm2窒素ガスを金属パイプ内に送気し、金
属パイプ内に圧力低下があるかどうか調べてい
た。
For this purpose, a pressure reducing valve, a valve, a Bourpon type pressure gauge, a gas supply jig, a metal pipe containing optical fiber, and a blind type jig are sequentially connected to a nitrogen gas cylinder, and for example, 5 kg/cm 2 of nitrogen gas is pumped into the metal pipe. They were supplying air and checking to see if there was a pressure drop inside the metal pipe.

ここに用いられる従来の治具は第1図に示すよ
うに光フアイバ入り金属パイプ等の金属パイプ1
を挿通し得る導入部2と、これにつづく金属パツ
キン3の保持部4及び雄体10の凸部8を嵌入す
る凹部6とを有し、この凹部6の内表面には雄体
10の凸部を螺合する螺合溝5aが設けられて雌
体7を構成している。そして雌体7と共通する金
属パイプの挿入孔をほゞ中間まで有し、かつこれ
にほゞ等しい内径のガス通路9が連続して設けら
れ、前記の雌体7の凹部6に嵌入する凸部8を備
え、凸部8の外表面には前記雌体7の螺合溝5a
と螺合する螺合溝5bを有する雄体10からなる
治具であり、金属パイプの気密試験を行なうため
には、金属パイプの両端にこれをとりつけ、治具
の一つはパイプを挿入しない側、つまりガス通路
9を送気管に接続して不活性ガスを圧入するよう
にし、他の治具の一つはガス通路9をめくらにし
て、金属管内全長に亘るガス漏れの有無を調べる
ものであつた。
The conventional jig used here is a metal pipe 1 such as a metal pipe containing optical fiber, as shown in Fig. 1.
The holding part 4 of the metal packing 3 and the convex part 8 of the male body 10 are fitted into the concave part 6, and the convex part 8 of the male body 10 is inserted into the inner surface of the concave part 6. A female body 7 is provided with a threaded groove 5a into which the parts are threaded together. It has an insertion hole for a metal pipe common to the female body 7 up to approximately the middle, and a gas passage 9 having an inner diameter approximately equal to this hole is continuously provided. 8, and the outer surface of the convex portion 8 is provided with a threading groove 5a for the female body 7.
This is a jig consisting of a male body 10 having a threaded groove 5b that is screwed into the metal pipe.In order to perform an airtight test on a metal pipe, this jig is attached to both ends of the metal pipe, and one of the jigs does not insert the pipe. The side, that is, the gas passage 9, is connected to the air supply pipe to inject inert gas under pressure, and one of the other jigs is used to blind the gas passage 9 to check for gas leaks along the entire length of the metal pipe. It was hot.

ところが、市販のこの種治具の金属パツキン3
の形状は内部に金属パイプを挿入し得る孔部を有
し、その表面は円弧状に成形された真鍮製のそろ
ばん玉状パツキンであり、内部に挿通される金属
パイプの外径と、そろばん玉状パツキンの内径と
が差のない方が正確な保持構造をとり得るので、
気密であるが、現実には内径で2.0,3.0,4.5,
5.0,6.0,8.0,10.0mmと、1/16″,1/8″,3/
8″と云つたような特定のサイズのものしか作られ
ておらず、中間の値の外径を有する金属パイプに
使用しようとする場合、金属パイプの外径より小
さい内径の通路を有するそろばん玉状パツキンを
準備し、その通路をやすりで削つて内径を大きく
するか、又は金属パイプ自身の外表面を削つて細
く仕上げなければならず、かゝる切削作業を手作
業で真円状に成形することはほとんど不可能と云
えるところから、改良が望まれていた。
However, the metal gasket 3 of this type of jig on the market
It has a hole into which a metal pipe can be inserted, and its surface is an arc-shaped brass abacus bead-shaped packing, and the outer diameter of the metal pipe to be inserted inside and the abacus bead are the same. If there is no difference in the inner diameter of the shaped packing, a more accurate holding structure can be achieved.
It is airtight, but in reality the inner diameter is 2.0, 3.0, 4.5,
5.0, 6.0, 8.0, 10.0mm and 1/16″, 1/8″, 3/
If the abacus ball is only made in a specific size, such as 8", and you want to use it with a metal pipe that has an intermediate outside diameter, you should use an abacus ball that has a passageway with an inside diameter smaller than the outside diameter of the metal pipe. It is necessary to prepare a shaped packing and file down the passageway to enlarge the inner diameter, or to grind the outer surface of the metal pipe itself to make it thinner. Since it is almost impossible to do so, improvements have been desired.

又、最も簡単な送気側でないパイプ端末の処理
方法としてはハンダ上げでめくらにすることも考
えられるが実際には気密にハンダ上げすることは
全く不可能であつた。
Also, the simplest way to treat pipe ends that are not on the air supply side is to solder them blindly, but in reality it has been completely impossible to solder them airtight.

本考案は上記のような実情に鑑みてなされたも
ので、第2図を参照しつゝ説明すれば次のとおり
である。
The present invention was developed in view of the above-mentioned circumstances, and will be explained as follows with reference to FIG.

20は雌体で、比較的大径の本体部21とこれ
に連続した比較的小径の管状部22とよりなつて
いる。比較的大径の本体部の内部は、入口に雄体
と螺合する溝部23aが設けられておりその部分
から先方に至る間は漸次大径から小径に移行する
テーパー部24が設けられ、その先端は、金属パ
イプ1を挿入し得る管孔部25を有する壁体部2
6を構成している。この管孔部25の先方は上述
の管状部22で、図ではガス送気管と結合し得る
ような取付金具27が設けられているガス送気用
治具の場合が示されている。よつて金属パイプ1
の端部をゴムパツキン29及びその両面の押え金
具30の中心の孔部に挿入して、雌体20の凹所
内に挿入する、次にこれ又、あらかじめ金属パイ
プ1を中心の孔部に挿通してある雄体32を前記
ゴムパツキン29の背後から押圧するようにして
取付ける。
Reference numeral 20 denotes a female body, which is composed of a relatively large diameter main body portion 21 and a relatively small diameter tubular portion 22 continuous thereto. Inside the relatively large diameter main body part, a groove part 23a is provided at the entrance to which the male body is screwed, and a tapered part 24 that gradually transitions from a large diameter to a small diameter is provided from that part to the tip. The tip has a wall portion 2 having a tube hole portion 25 into which the metal pipe 1 can be inserted.
6. The tip of this tube hole portion 25 is the above-mentioned tubular portion 22, and the figure shows a case of a gas supply jig provided with a fitting 27 that can be connected to a gas supply pipe. Yotsute metal pipe 1
Insert the end of the metal pipe 1 into the hole in the center of the rubber gasket 29 and the presser metal fittings 30 on both sides thereof, and insert it into the recess of the female body 20. Next, insert the metal pipe 1 into the hole in the center in advance. Attach the male body 32 by pressing it from behind the rubber gasket 29.

雄体32にはゴムパツキン29を押圧するよう
に突出させた突起部31を有し、外表面には雌体
の溝部23aと螺合するような溝部23bが設け
られている。
The male body 32 has a protrusion 31 that protrudes so as to press the rubber gasket 29, and the outer surface is provided with a groove 23b that screws into the groove 23a of the female body.

従つてこの金属パイプを挿通させた雄体32を
雌体内に挿入し、両者を螺合すると、雌体のテー
パー部24内でゴムパツキン29(好ましくはテ
ーパー部内の形状に合せた円錐台とする)が圧縮
される結果金属パイプ1は完全に気密状態に保持
されることになる。
Therefore, when the male body 32 with this metal pipe inserted therethrough is inserted into the female body and the two are screwed together, a rubber gasket 29 (preferably shaped like a truncated cone that matches the shape of the tapered portion) is formed within the tapered portion 24 of the female body. As a result of the compression, the metal pipe 1 is kept completely airtight.

なお、第2図は先にも述べたようにガス送気用
治具の場合の例示が示されているが、これに第3
図に示すが如きめくら用棒28を管状部22に挿
入してめくらにすることによりガス封止用治具と
しても使用し得るものである。
As mentioned above, Fig. 2 shows an example of the case of a gas supply jig, but in addition to this, the third
It can also be used as a gas sealing jig by inserting a blinding rod 28 into the tubular portion 22 and blinding it as shown in the figure.

更に又、ガス封止用治具の場合は第2図に於て
壁体部26を孔のない封止構造とし、管状部22
及び取付金具27を削除することにより最初から
専用のガス封止用治具となし得ることは勿論であ
る。
Furthermore, in the case of a gas sealing jig, the wall portion 26 has a sealing structure without holes in FIG. 2, and the tubular portion 22
Of course, by removing the mounting bracket 27, it can be used as a dedicated gas sealing jig from the beginning.

従つて本考案によるガス送気用治具及びガス封
止用治具をパイプの両側に取付ければ何等熟練を
要することなく気密取付けが可能であるため、確
実なパイプの気密試験を行なうことができる。
Therefore, if the gas supply jig and gas sealing jig according to the present invention are installed on both sides of a pipe, airtight installation is possible without any skill required, and therefore it is possible to conduct a reliable airtightness test of the pipe. can.

本考案の治具は以上の如く、ゴムパツキンを使
用することにより多少の寸法差のある金属パイプ
も同一治具で容易に気密に取りつけられるのみな
らず、しかも、ゴムパツキンの内径つまり、金属
パイプの挿入部分の径の異なるものを数種用意す
れば同一治具でも巾広く利用し得る特長を有する
ものである。
As described above, the jig of the present invention not only allows metal pipes with slightly different dimensions to be easily and airtightly attached using the same jig by using rubber gaskets, but also allows the inner diameter of the rubber gaskets to be adjusted to fit the metal pipe. The same jig has the advantage of being widely usable by preparing several types with different diameters.

なお本考案の実施に当つては円管状パイプ以外
に矩形、偏平等異形パイプであつてもゴムパツキ
ン及び金具をほゞその形状のパイプ通路を中心に
設ければ前述の説明と全く同様にゴムパツキンの
締付力により気密に構成されるので、パイプの気
密試験を容易に行ない得るものである。
In addition, when implementing the present invention, even if the pipe is rectangular or unevenly shaped in addition to a circular pipe, if the rubber seal and metal fittings are placed approximately in the center of the pipe passage of that shape, the rubber seal can be installed in the same way as described above. Since the structure is made airtight by tightening force, the airtightness test of the pipe can be easily performed.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来のパイプの気密試験用治具の構造
を示す縦断面図、第2図は本考案による治具の構
造例を示す縦断面図、第3図は第2図の治具をめ
くらにするためのめくら用棒の構造を示す縦断面
図である。 1……パイプ、20……雌体、21……本体
部、22……管状部、23a,23b……溝部、
24……テーパー部、25……管孔部、26……
壁体部、27……取付金具、28……めくら用
棒、29……ゴムパツキン、30……押え金具、
31……突起部、32……雄体。
Fig. 1 is a vertical cross-sectional view showing the structure of a conventional pipe airtightness test jig, Fig. 2 is a longitudinal cross-sectional view showing an example of the structure of the jig according to the present invention, and Fig. 3 is a vertical cross-sectional view showing the structure of a jig for a conventional pipe airtightness test. FIG. 2 is a vertical cross-sectional view showing the structure of a blinding rod for blinding. DESCRIPTION OF SYMBOLS 1... Pipe, 20... Female body, 21... Main body part, 22... Tubular part, 23a, 23b... Groove part,
24...Tapered part, 25...Pipe hole part, 26...
Wall part, 27...Mounting bracket, 28...Blind rod, 29...Rubber gasket, 30...Pressure metal fitting,
31... Protrusion, 32... Male body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一端を気密試験されるパイプに結合し、他端を
送気可能にするか又は封止したパイプの気密試験
用治具に於て、パイプの挿入側の内面入口に、治
具の雄体を螺合する溝部を有し、その先方にゴム
パツキンを挿入するよう漸次大径より小径になる
テーパー部が設けられた雌体本体部に、中心部に
パイプを挿入保持し得る孔を有するゴムパツキン
をその前後に押え金具を介在させて挿入し、その
後方から外表面に雌体入口の溝部と螺合する溝部
を有し、中心部にパイプを挿通する孔を設けた雄
体を螺合し、ゴムパツキンを押圧することにより
中心部に挿入されるパイプが気密に締め付け保持
されるようにしたパイプの気密試験用治具。
In a jig for airtightness testing of pipes, one end of which is connected to the pipe to be tested for airtightness, and the other end is air-supplied or sealed, place the male body of the jig at the inner inlet on the insertion side of the pipe. A rubber gasket having a hole in the center for inserting and holding a pipe is attached to the female main body portion, which has a threaded groove portion and a tapered portion whose diameter gradually becomes smaller than the larger diameter so that the rubber gasket can be inserted into the female body portion. Insert the holding metal fittings in the front and back, and screw the male body, which has a groove on the outer surface that screws into the groove of the female body inlet and a hole in the center for inserting the pipe, into the rubber gasket. A jig for pipe airtightness testing that allows the pipe inserted into the center to be airtightly tightened and held by pressing the pipe.
JP5025583U 1983-04-06 1983-04-06 Jig for pipe airtightness test Granted JPS59155535U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5025583U JPS59155535U (en) 1983-04-06 1983-04-06 Jig for pipe airtightness test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5025583U JPS59155535U (en) 1983-04-06 1983-04-06 Jig for pipe airtightness test

Publications (2)

Publication Number Publication Date
JPS59155535U JPS59155535U (en) 1984-10-18
JPH023138Y2 true JPH023138Y2 (en) 1990-01-25

Family

ID=30180726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5025583U Granted JPS59155535U (en) 1983-04-06 1983-04-06 Jig for pipe airtightness test

Country Status (1)

Country Link
JP (1) JPS59155535U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110361136A (en) * 2019-07-19 2019-10-22 中国航发沈阳发动机研究所 A kind of between centers seal tester

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1123408A (en) * 1997-07-09 1999-01-29 Mitsui Chem Inc Airtightness or water-pressure testing method of resin piping system and blinding plug used therein

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110361136A (en) * 2019-07-19 2019-10-22 中国航发沈阳发动机研究所 A kind of between centers seal tester
CN110361136B (en) * 2019-07-19 2021-05-25 中国航发沈阳发动机研究所 Inter-shaft sealing tester

Also Published As

Publication number Publication date
JPS59155535U (en) 1984-10-18

Similar Documents

Publication Publication Date Title
KR101879248B1 (en) Connecting structure of refrigerant pipe
ATE293226T1 (en) PIPE JOINT AND METHOD FOR MAKING SAME
US5983706A (en) Versatile air test apparatus
JPH023138Y2 (en)
US11384874B2 (en) Fitting device for making connection tube that can fine position adjustment of the tube
SE9301793D0 (en) BLOCKING METHOD FOR PIPELINES
CN212081595U (en) Air pipe for decoration
CN213632949U (en) High-pressure inflation clamp for plastic pipeline
CN2364307Y (en) Elastic cutting ferrule type pipe connection
CN221238586U (en) Grouting plugging device air tightness testing device
CN218625957U (en) PE pipe joint reducer union
CN218954339U (en) External plugging head
CN213982366U (en) Stainless steel joint
CN210196440U (en) O-shaped ring plug
CN217816833U (en) Gas wall-mounted furnace and sealed smoke exhaust assembly thereof
CN217111855U (en) Intercooler cooling tube bursting pressure test device
CN210600522U (en) Quick joint with detection function
CN220751525U (en) Three-way pipe fitting gas tightness detection device
CN214944525U (en) Exhaust manifold sealing structure
CN210440711U (en) Conical sealing pipe joint for diesel engine
CN214947236U (en) Single-joint and air conditioning system with same
JP2594289Y2 (en) Male thread for pipe for low pressure
JPH06331076A (en) Connector part using flare nut
CN201517669U (en) Quick connection coupler of corrugated pipe
CN208816923U (en) The fast connecting apparatus that domestic gas pipeline uses