JPH09281019A - Pressure testing apparatus for pipe body - Google Patents
Pressure testing apparatus for pipe bodyInfo
- Publication number
- JPH09281019A JPH09281019A JP8653096A JP8653096A JPH09281019A JP H09281019 A JPH09281019 A JP H09281019A JP 8653096 A JP8653096 A JP 8653096A JP 8653096 A JP8653096 A JP 8653096A JP H09281019 A JPH09281019 A JP H09281019A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- attachment
- conduit
- hole
- tightening nut
- 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
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、合成樹脂管の耐圧
試験を行う際に、供試管のセッテイングや取り外し作業
が簡単かつ確実に行える耐圧試験装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure resistance test apparatus which can easily and reliably perform setting and removal of a test tube when performing a pressure resistance test on a synthetic resin tube.
【０００２】[0002]
【従来の技術】従来から合成樹脂管の耐圧試験を行う場
合には、合成樹脂管を所定長さに切断して供試管を作成
し、それぞれの管端部を加熱軟化してからテーパ状に拡
開していた。そして、この供試管の両端部に形成したテ
ーパ部の開口面に盲フランジの円錐面を当てがうと共
に、テーパ部の背面にルーズフランジを係止させて盲フ
ランジとルーズフランジとをボルトで固定し、供試管の
両端部を閉塞してから盲フランジに接続した流体管から
管内に加圧流体を導入して耐圧試験を行っていた。2. Description of the Related Art Conventionally, when performing a pressure resistance test on a synthetic resin pipe, a synthetic resin pipe is cut into a predetermined length to prepare a test pipe, and each pipe end is heated and softened and then tapered. It was expanding. Then, while applying the conical surface of the blind flange to the opening surface of the tapered portion formed at both ends of this test tube, lock the loose flange on the back surface of the tapered portion and fix the blind flange and the loose flange with bolts. The pressure resistance test was conducted by introducing a pressurized fluid into the pipe from a fluid pipe connected to a blind flange after closing both ends of the test pipe.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この従
来の耐圧試験の場合には、供試管の両端部を加熱軟化し
てテーパ状に拡開する作業に熟練と手間がかかるという
問題があった。また、供試管の端部が完全に閉塞されな
い場合には、耐圧試験の際に加圧流体が漏洩して十分な
試験が行えないことがあった。However, in the case of the conventional pressure resistance test, there is a problem that it takes a lot of skill and time to work to soften both ends of the test tube by heating and softening it to open it in a tapered shape. In addition, if the end of the test tube is not completely closed, the pressurized fluid may leak during the pressure resistance test and a sufficient test may not be performed.
【０００４】本発明はかかる課題を解決したものであっ
て、供試管のセッテイングや取り外しが簡単かつ確実に
行えると共に、供試管の端部を確実に閉塞して管内流体
の漏洩を確実に防止できる耐圧試験装置を提供するもの
である。SUMMARY OF THE INVENTION The present invention has solved the above-mentioned problems, and allows the test tube to be set and removed easily and surely, and the end of the test tube to be surely closed to prevent leakage of fluid in the test tube. A pressure tester is provided.
【０００５】[0005]
【課題を解決するための手段】本発明は、供試管の両端
部に閉塞体が装着されると共に、供試管内に導管が挿通
され、該導管の両端部に接続した接続部材がそれぞれの
閉塞体の中心部に設けた貫通孔に嵌挿されると共に、該
貫通孔から閉塞体の外側に突出したそれぞれの接続部材
の一端部に閉塞体を押圧する締付けナットが螺合され、
また少くとも一方の閉塞体にアタッチメントが着脱自在
に装着されると共に、該アタッチメントが継手を介して
締付けナットに接続されることを特徴とする。According to the present invention, a closing member is attached to both ends of a test tube, a conduit is inserted into the test tube, and connecting members connected to both ends of the conduit are respectively closed. While being inserted into a through hole provided in the center of the body, a tightening nut for pressing the closing body is screwed to one end of each connecting member protruding from the through hole to the outside of the closing body.
Further, the attachment is detachably attached to at least one of the closing bodies, and the attachment is connected to the tightening nut through a joint.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施例を図面にて
詳細に説明する。図１は本発明の一実施例を示す耐圧試
験装置の部分切断断面図、図２は閉塞体の部分正面図で
あって、図中の符号１は閉塞体、２は導管、３は接続部
材、４は締付けナット、５は継手、６はアタッチメン
ト、７は流体管、Ｐは供試管である。供試管Ｐはポリエ
チレン管、塩化ビニル樹脂管等を所定長さに切断したも
のであって、本発明ではこの供試管Ｐの両端部を閉塞体
１で閉塞してから管内に空気、水等の加圧流体を導入し
て耐圧試験を行うものである。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cut sectional view of a pressure resistance test apparatus showing an embodiment of the present invention, and FIG. 2 is a partial front view of a closing body, in which reference numeral 1 is a closing body, 2 is a conduit, and 3 is a connecting member. 4 is a tightening nut, 5 is a joint, 6 is an attachment, 7 is a fluid pipe, and P is a test pipe. The test tube P is a polyethylene tube, a vinyl chloride resin tube or the like cut into a predetermined length. In the present invention, both ends of the test tube P are closed by the closing bodies 1 and then air, water, etc. A pressure resistance test is performed by introducing a pressurized fluid.
【０００７】閉塞体１はフランジ１１の一側に筒体１２
を突設した構成からなっており、該筒体１２の内周面に
設けた環状溝には供試管Ｐの端部外周面に密接するシー
ルパッキン１２ａが装着されている。また、フランジ１
１の中心部には貫通孔１３が穿設されており、該貫通孔
１３の内周壁に設けた環状溝にシールパッキン１３ａが
装着されている。The closing body 1 has a cylindrical body 12 on one side of a flange 11.
The cylindrical packing 12 is fitted with a seal packing 12a which is in close contact with the outer peripheral surface of the end portion of the sample tube P in the annular groove provided on the inner peripheral surface of the cylindrical body 12. In addition, flange 1
A through hole 13 is formed in the center of the through hole 1, and a seal packing 13a is attached to an annular groove formed in the inner peripheral wall of the through hole 13.
【０００８】一方、供試管Ｐ内には導管２が挿通されて
おり、該導管２の両端部に接続部材３が接続している。
接続部材３の中央部外周には鍔３１が設けられており、
該鍔３１の一端側に雄ねじ３２と、他端側に雌ねじ３３
とが設けられている。そして、鍔３１と雌ねじ３３との
中間部には内部の流通孔と連通する小孔３４が設けられ
ている。この接続部材３の雌ねじ３３に導管２の端部に
設けた雄ねじ２１が螺合すると共に、該雄ねじ２１にロ
ックナット３ａが螺合して緩まないように固定されてい
る。On the other hand, the conduit 2 is inserted into the test tube P, and the connecting members 3 are connected to both ends of the conduit 2.
A collar 31 is provided on the outer periphery of the central portion of the connecting member 3,
A male screw 32 is provided at one end of the collar 31 and a female screw 33 is provided at the other end thereof.
Are provided. Further, a small hole 34 communicating with the internal flow hole is provided in an intermediate portion between the collar 31 and the female screw 33. A male screw 21 provided at the end of the conduit 2 is screwed into the female screw 33 of the connecting member 3, and a lock nut 3a is screwed into the male screw 21 and is fixed so as not to loosen.
【０００９】また、双方の閉塞体１，１の中心部に設け
た貫通孔１３に接続部材３が嵌挿され、閉塞体１と接続
部材３とがシールパッキン１３ａを介して気密に接合し
ている。それぞれの接続部材３，３の一端部は閉塞体１
の外側に突出しており、その一端部に設けた雄ねじ３２
に締付けナット４が螺合している。即ち、締付けナット
４の両端部には雌ねじが設けられており、該締付けナッ
ト４の雌ねじに前記接続部材３の雄ねじ３２を螺合して
いる。そして、前述した一方の締付けナット４に流体管
７が螺合し、他方の締付けナット４に継手５及びアタッ
チメント６を介して流体管７が接続している。Further, the connecting member 3 is fitted into the through hole 13 provided in the central portion of both the closing bodies 1 and 1, and the closing body 1 and the connecting member 3 are hermetically joined via the seal packing 13a. There is. One end of each of the connecting members 3 and 3 is a closing body 1.
Of the male screw 32 protruding to the outside of the
The tightening nut 4 is screwed into the. That is, female screws are provided at both ends of the tightening nut 4, and the male screw 32 of the connecting member 3 is screwed into the female screw of the tightening nut 4. The fluid pipe 7 is screwed into the one tightening nut 4 described above, and the fluid pipe 7 is connected to the other tightening nut 4 via the joint 5 and the attachment 6.
【００１０】アタッチメント６には流体管７と接続した
差口部６２が設けられており、該差口部６２が支持枠体
６１に保持されている。また、支持枠体６１の適所に
は、先端部が拡大した鉤状突起６３が２個又は４個設け
られており、該鉤状突起６３が閉塞体１の外側面に固着
した支持板１ａの鉤溝１４と着脱自在に係合している。
即ち、図２に示した如く、支持板１ａには同芯円弧状の
鉤溝１４が円周上の４カ所に設けられており、それぞれ
の鉤溝１４は時計回り方向の始端が大径穴１４１となっ
て大きく開口している。The attachment 6 is provided with a spout portion 62 connected to the fluid pipe 7, and the spout portion 62 is held by a support frame 61. In addition, two or four hook-shaped protrusions 63 having enlarged tip portions are provided at appropriate places of the support frame 61, and the hook-shaped protrusions 63 of the support plate 1 a fixed to the outer surface of the closing body 1 are provided. It is detachably engaged with the hook groove 14.
That is, as shown in FIG. 2, the support plate 1a is provided with concentric arcuate hook grooves 14 at four positions on the circumference, and each hook groove 14 has a large diameter hole at the starting end in the clockwise direction. It is 141 and has a large opening.
【００１１】前記鉤溝１４は蟻溝状に形成されており、
それぞれの鉤溝１４と対応した適所に前述したアタッチ
メント６の鉤状突起６３が設けられている。そして、ア
タッチメント６の鉤状突起６３を支持板１ａに設けた鉤
溝１４の大径穴１４１に挿入してから時計方向に回転さ
せると、鉤状突起６３が鉤溝１４と係合して固定される
ようになっている。また、アタッチメント６の差口部６
２は締付けナット４に螺合した継手５の受口に挿入さ
れ、シールパッキン６ａを介して緊密に接続している。The hook groove 14 is formed in the shape of a dovetail groove,
The hook-like protrusions 63 of the attachment 6 described above are provided at appropriate positions corresponding to the respective hook grooves 14. Then, when the hook-shaped projection 63 of the attachment 6 is inserted into the large-diameter hole 141 of the hook groove 14 provided in the support plate 1a and then rotated clockwise, the hook-shaped projection 63 engages with the hook groove 14 and is fixed. It is supposed to be done. Also, the attachment portion 6 of the attachment 6
2 is inserted into a receiving port of a joint 5 screwed into a tightening nut 4, and is tightly connected via a seal packing 6a.
【００１２】次に、本発明の装置による耐圧試験の手順
を説明する。図１に示した如く、まず供試管Ｐの両端部
に閉塞体１，１を装着すると共に、該供試管Ｐ内に導管
２を挿通し、その両端部に接続した接続部材３，３をそ
れぞれの閉塞体１，１の中心部に設けた貫通孔１３に嵌
挿する。そこで、貫通孔１３から突出したそれぞれの接
続部材３の雄ねじ３２に締付けナット４を螺合し、該締
付けナット４をスパナ等で回転させて締付ける。する
と、閉塞体１は接続部材３の外周面から突出した鍔３１
と締付けナット４とで挟持されると共に、双方の閉塞体
１，１が導管２及び導管接続部材３，３を介して強固に
連結される。Next, the procedure of the withstand voltage test by the apparatus of the present invention will be described. As shown in FIG. 1, first, both ends of the test tube P are fitted with the closures 1, 1, the conduit 2 is inserted into the test tube P, and the connecting members 3 and 3 connected to the both ends thereof, respectively. It is fitted into the through hole 13 provided at the center of the closing bodies 1, 1. Therefore, the tightening nut 4 is screwed into the male screw 32 of each connecting member 3 protruding from the through hole 13, and the tightening nut 4 is rotated by a spanner or the like to tighten it. Then, the closing body 1 has the brim 31 protruding from the outer peripheral surface of the connecting member 3.
And the tightening nut 4, the two closing bodies 1, 1 are firmly connected via the conduit 2 and the conduit connecting members 3, 3.
【００１３】次に、前述した一方の締付けナット４に継
手５を接続すると共に、該継手５にアタッチメント６を
接続する。このとき、締付けナット４の雌ねじに継手５
の雄ねじを螺合し、該継手５の他端受口にアタッチメン
ト６の差口部６２を嵌入する。すると、シールパッキン
６ａを介して継手５とアタッチメント６とが接続され
る。この接続操作の際に、支持板１ａに設けた鉤溝１４
の大径穴１４１にアタッチメント６の鉤状突起６３を挿
入してから時計方向に回転させると、閉塞体１とアタッ
チメント６とが簡単かつ確実に固定される。Next, the joint 5 is connected to the one tightening nut 4 and the attachment 6 is connected to the joint 5. At this time, the fitting 5 is attached to the female thread of the tightening nut 4.
The male screw of 4 is screwed, and the spigot portion 62 of the attachment 6 is fitted into the other end receiving port of the joint 5. Then, the joint 5 and the attachment 6 are connected via the seal packing 6a. At the time of this connection operation, the hook groove 14 provided on the support plate 1a
When the hook-shaped projection 63 of the attachment 6 is inserted into the large-diameter hole 141 and then rotated clockwise, the closing body 1 and the attachment 6 are easily and reliably fixed.
【００１４】最後に、他方の締付けナット４にも流体管
７を接続してから、例えばアタッチメント６を下方にし
て水中に沈め、流体管７から加圧空気等の加圧流体を導
入すると共に、接続部材３に設けた小孔３４から供試管
Ｐ内に所定の圧力を負荷して管の耐圧試験を行う。この
とき、双方の締付けナット４にアタッチメント６を接続
して耐圧試験を行うこともできる。Finally, the fluid pipe 7 is also connected to the other tightening nut 4, and then, for example, the attachment 6 is lowered and submerged in water to introduce a pressurized fluid such as pressurized air from the fluid pipe 7, A predetermined pressure is applied from the small hole 34 provided in the connection member 3 into the test pipe P to perform a pressure resistance test of the pipe. At this time, the pressure resistance test can be performed by connecting the attachments 6 to both the tightening nuts 4.
【００１５】[0015]
【発明の効果】以上詳述した如く、本発明の試験装置
は、供試管の両端部に閉塞体を装着すると共に、供試管
内に導管が挿通し、該導管の両端部に接続した接続部材
をそれぞれの閉塞体の中心部に設けた貫通孔に嵌挿する
と共に、該貫通孔から突出したそれぞれの接続部材の一
端部に閉塞体を押圧する締付けナットを螺合し、少くと
も一方の閉塞体にアタッチメントを着脱自在に装着する
ので、供試管のセッテイングや取り外しが簡単かつ確実
に行えると共に、供試管の端部を確実に閉塞して管内流
体の漏洩を確実に防止できる。As described in detail above, in the test apparatus of the present invention, the closing members are attached to both ends of the test tube, the conduit is inserted into the test tube, and the connecting member is connected to both ends of the conduit. Is inserted into a through hole provided in the center of each closing body, and a tightening nut for pressing the closing body is screwed into one end of each connecting member protruding from the through hole, and at least one closing body is closed. Since the attachment is detachably attached to the body, the test tube can be set and removed easily and surely, and the end of the test tube can be surely closed to prevent leakage of the fluid in the tube.
【図１】図１は本発明の一実施例を示す耐圧試験装置の
部分切断断面図である。FIG. 1 is a partially cut sectional view of a withstand voltage test apparatus showing an embodiment of the present invention.
【図２】図２は閉塞体の部分正面図である。FIG. 2 is a partial front view of a closing body.
１ 閉塞体 ２ 導管 ３ 接続部材 ４ 締付けナット ５ 継手 ６ アタッチメント ７ 流体管 1 Closing Body 2 Conduit 3 Connection Member 4 Tightening Nut 5 Joint 6 Attachment 7 Fluid Pipe
Claims (1)
装着されると共に、供試管（Ｐ）内に導管（２）が挿通
され、該導管（２）の両端部に接続した接続部材（３）
がそれぞれの閉塞体（１）の中心部に設けた貫通孔（１
３）に嵌挿されると共に、該貫通孔（１３）から閉塞体
（１）の外側に突出したそれぞれの接続部材（３）の一
端部に閉塞体（１）を押圧する締付けナット（４）が螺
合され、また少なくとも一方の閉塞体（１）にアタッチ
メント（６）が着脱自在に装着されると共に、該アタッ
チメント（６）が継手（５）を介して締付けナット
（４）に接続されることを特徴とする管体の耐圧試験装
置。1. A closed body (1) is attached to both ends of a test tube (P), and a conduit (2) is inserted into the test tube (P) and connected to both ends of the conduit (2). Connection member (3)
Is a through hole (1) provided at the center of each blocker (1).
A tightening nut (4) for pressing the closing body (1) is inserted into the through hole (13) and protrudes from the through hole (13) to the outside of the closing body (1) at one end of each connecting member (3). The attachment (6) is screwed, and the attachment (6) is detachably attached to at least one closure body (1), and the attachment (6) is connected to the tightening nut (4) via a joint (5). A pressure resistance tester for pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8653096A JPH09281019A (en) | 1996-04-09 | 1996-04-09 | Pressure testing apparatus for pipe body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8653096A JPH09281019A (en) | 1996-04-09 | 1996-04-09 | Pressure testing apparatus for pipe body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09281019A true JPH09281019A (en) | 1997-10-31 |
Family
ID=13889554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8653096A Pending JPH09281019A (en) | 1996-04-09 | 1996-04-09 | Pressure testing apparatus for pipe body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09281019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010530957A (en) * | 2007-03-20 | 2010-09-16 | ヴァーダーグ リミテッド | Tube test method and apparatus |
| CN102950425A (en) * | 2011-08-29 | 2013-03-06 | 中国石油天然气集团公司 | Manufacturing method of collapsing cylinder used for external pressure resistance test to failure test |
| CN116840064A (en) * | 2023-08-30 | 2023-10-03 | 广东凯莎科技有限公司 | Pipeline pressure-resistant tester for industrial machine |
-
1996
- 1996-04-09 JP JP8653096A patent/JPH09281019A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010530957A (en) * | 2007-03-20 | 2010-09-16 | ヴァーダーグ リミテッド | Tube test method and apparatus |
| CN102950425A (en) * | 2011-08-29 | 2013-03-06 | 中国石油天然气集团公司 | Manufacturing method of collapsing cylinder used for external pressure resistance test to failure test |
| CN102950425B (en) * | 2011-08-29 | 2014-09-03 | 中国石油天然气集团公司 | Manufacturing method of collapsing cylinder used for external pressure resistance test to failure test |
| CN116840064A (en) * | 2023-08-30 | 2023-10-03 | 广东凯莎科技有限公司 | Pipeline pressure-resistant tester for industrial machine |
| CN116840064B (en) * | 2023-08-30 | 2023-11-10 | 广东凯莎科技有限公司 | Pipeline pressure-resistant tester for industrial machine |
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