JPH11287387A - Test plug for synthetic resin pipe such as polyethylene pipe - Google Patents
Test plug for synthetic resin pipe such as polyethylene pipeInfo
- Publication number
- JPH11287387A JPH11287387A JP10088388A JP8838898A JPH11287387A JP H11287387 A JPH11287387 A JP H11287387A JP 10088388 A JP10088388 A JP 10088388A JP 8838898 A JP8838898 A JP 8838898A JP H11287387 A JPH11287387 A JP H11287387A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- pipe
- ring
- resin pipe
- rod
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、水系の管路を構成する
ポリエチレン管、ポリブデン管などの合成樹脂管の水漏
れの有無を判別するため、該合成樹脂管の端部を閉塞す
るために該端部に取付けて用いるテストプラグ(止水
栓)に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for determining the presence or absence of water leakage in a synthetic resin pipe such as a polyethylene pipe or a polybutene pipe which constitutes a water-based pipe, and for closing an end of the synthetic resin pipe. The present invention relates to a test plug (water stopcock) used by being attached to the end.
【0002】[0002]
【従来例】従来は、ポリエチレン管などの合成樹脂管の
端部を閉塞(止水)するための特別なものはなく、木片
その他適宜のものを選択して端部に挿入するようにして
おり、その適宜のものの選択に不便を来たしている。2. Description of the Related Art Conventionally, there is no special thing for closing (water-stopping) the end of a synthetic resin pipe such as a polyethylene pipe, and a piece of wood or other appropriate one is selected and inserted into the end. , It is inconvenient to select the appropriate one.
【0003】本発明は、斯様な常況に鑑み、使用勝手が
良好で、しかも低価格で提供できる従来にない製品を得
ることを目的として創案したものである。[0003] In view of such a normal situation, the present invention has been made for the purpose of obtaining an unprecedented product which is easy to use and can be provided at a low price.
【0004】[0004]
【課題を解決するための手段】摘み用頭部の片面に該頭
部より小径な棒杆部を突設してプラグ本体を構成し、該
プラグ本体の前記棒杆部の先端側周側に凹溝を設け、該
凹溝に合成樹脂管の内壁に圧接して縮径するOリングを
嵌着し、このOリングと前記摘み用頭部との間の、前記
棒杆部の周側部に、前記合成樹脂管の内壁に喰い込む突
条を螺旋状にして設けると共に、摘み用頭部の前記片面
に、前記棒杆部を取り囲み、前記合成樹脂管の末端を挾
入する受入溝を設けた構成とする。A plug body is formed by projecting a rod portion having a smaller diameter than the head on one side of the knob head to form a plug body. A concave groove is provided, and an O-ring that is pressed against the inner wall of the synthetic resin pipe to reduce its diameter is fitted into the concave groove, and a peripheral side portion of the rod portion between the O-ring and the knob head. In addition, a ridge that bites into the inner wall of the synthetic resin tube is provided in a spiral shape, and a receiving groove that surrounds the rod portion and sandwiches the end of the synthetic resin tube is formed on one surface of the picking head. The configuration is provided.
【0005】[0005]
【実施例】図面は本発明に係るポリエチレン管等の合成
樹脂管用テストプラグの一実施例を示し、図1はテスト
プラグと合成樹脂管との関係を示す一部欠截正面図、図
2は使用状態を示す断面図、図3は図2の一部拡大図で
ある。1 shows an embodiment of a test plug for a synthetic resin pipe such as a polyethylene pipe according to the present invention. FIG. 1 is a partially cutaway front view showing the relationship between a test plug and a synthetic resin pipe, and FIG. FIG. 3 is a sectional view showing a use state, and FIG. 3 is a partially enlarged view of FIG.
【0006】1は金属(実施例では真ちゅう)製のプラ
グ本体で、プラグ本体1は、摘み用頭部2の片面2´に
該頭部2より小径な棒杆部3を突設して成り、該プラグ
本体1の前記頭部2の片面2´に前記棒杆部3を取り囲
む受入溝4を設け、また、棒杆部3の先端側周側に設け
た凹溝5にOリング6を嵌着してテストプラグAを構成
する。Reference numeral 1 denotes a plug body made of metal (in the embodiment, brass). The plug body 1 is formed by projecting a bar 3 having a smaller diameter than the head 2 on one side 2 ′ of a picking head 2. A receiving groove 4 surrounding the rod portion 3 is provided on one surface 2 ′ of the head 2 of the plug body 1, and an O-ring 6 is provided in a concave groove 5 provided on the tip side peripheral side of the rod portion 3. The test plug A is formed by fitting.
【0007】プラグ本体1の棒杆部3はほぼ円柱状で成
り、前記凹溝5に隣接する先端部3′の径を、合成樹脂
管7の内径より小さくして合成樹脂管7に挿入し易くし
てある。凹溝5に嵌着した前記Oリング6は、その外周
縁が凹溝5より突出して、合成樹脂管7の内壁7′に圧
接して縮径する程度の外径を備えており、このOリング
6と前記摘み用頭部2との間の、棒杆部3の周側部に、
前記凹溝5の縁部を起点とする突条8を螺旋状にして設
け、突条8部の外径aは前記Oリング6の外径とほぼ同
じくし、合成樹脂管5の内径bより大きくしてある(実
施例は、外径aは内径bより0.3mm大)。The rod portion 3 of the plug body 1 has a substantially cylindrical shape, and the diameter of the tip 3 ′ adjacent to the concave groove 5 is made smaller than the inner diameter of the synthetic resin tube 7 and inserted into the synthetic resin tube 7. It's easy. The O-ring 6 fitted in the concave groove 5 has an outer diameter such that its outer peripheral edge protrudes from the concave groove 5 and is pressed against the inner wall 7 ′ of the synthetic resin pipe 7 to reduce its diameter. Between the ring 6 and the knob head 2, on the circumferential side of the rod 3,
A ridge 8 starting from the edge of the concave groove 5 is provided in a spiral shape. The outer diameter a of the ridge 8 is substantially the same as the outer diameter of the O-ring 6, and is smaller than the inner diameter b of the synthetic resin pipe 5. (In the embodiment, the outer diameter a is 0.3 mm larger than the inner diameter b.)
【0008】前記受入溝4は、互いに対向する内外の周
壁部4a,4bと奥壁部4cとで成り、内外の周壁部4
a,4bを開口端から奥壁部4c方向に漸次互いに近接
するテーパ状と成し、内周壁部4aのテーパ形状によ
り、樹脂管7は拡開され、内外周壁部4bのテーパ形状
の前記奥壁部4c側によって半径方向内側に押え付けら
れ縮径し、樹脂管7は全体としてすぼまり受入溝4で取
り囲まれた前記棒杆部3を挾持し、棒杆部3に密着し、
水漏れ及び圧力による飛出しを防ぎ、安全性を高める。The receiving groove 4 includes inner and outer peripheral wall portions 4a and 4b and an inner wall portion 4c which face each other.
The inner and outer walls 4a and 4b are tapered so as to gradually approach each other in the direction of the inner wall 4c from the opening ends. The resin tube 7 is pressed inward in the radial direction by the wall portion 4c side to reduce the diameter, and the resin tube 7 is narrowed as a whole and clamps the rod portion 3 surrounded by the receiving groove 4, and comes into close contact with the rod portion 3,
Prevents leaks due to water leakage and pressure and enhances safety.
【0009】因に、樹脂管7の内径を9.5mm、外径
を14mmとしたとき、前記突条部8の外径は9.8m
m、受入溝4の内径(内周壁部4aが成す)は最も狭い
個所で9.8mm、最も広い個所で10.95mm、外
径(外周壁部4bが成す)の最も広径な部分が14.5
mm、最も狭い部分が13.5mmという数値例を示し
ておく。When the inner diameter of the resin pipe 7 is 9.5 mm and the outer diameter is 14 mm, the outer diameter of the ridge 8 is 9.8 m.
m, the inner diameter of the receiving groove 4 (formed by the inner peripheral wall part 4a) is 9.8 mm at the narrowest part, 10.95 mm at the widest part, and the widest part of the outer diameter (formed by the outer peripheral wall part 4b) is 14 .5
A numerical example in which the narrowest portion is 13.5 mm is shown.
【0010】摘み用頭部2は六角ボルトの頭部と同形と
して工具による操作を容易にしてあるが、外周形が丸形
であろうが、三角形であろうが差し支えない。[0010] The knob head 2 has the same shape as the hexagonal bolt head for easy operation with a tool. However, the outer peripheral shape may be round or triangular.
【0011】しかして、プラグ本体1の棒杆部3の先端
部3´を合成樹脂管7の内側に係合し、合成樹脂管7内
に押し込むと、Oリング6は縮径して内壁7′に圧接し
つつ押し込まれ、そして、頭部2を利用して手先又は工
具でプラグ本体1を押圧しつつ回動させると、角形状に
した突条8が内壁7′に喰い込みつつ(いわば、螺入し
て)プラグ本体1の棒杆部3は合成樹脂管7内に装着さ
れ、かつ、合成樹脂管7の先端は受入溝4に強制的に係
合して挾入され、縮径して棒杆部3を挾持する。 ま
た、前記回動と反対方向に回動させることにより、合成
樹脂管7よりテストプラグAを取り外すことができる。When the distal end 3 'of the rod 3 of the plug body 1 is engaged with the inside of the synthetic resin tube 7 and pushed into the synthetic resin tube 7, the O-ring 6 is reduced in diameter and the inner wall 7 ′, And when the plug body 1 is rotated using the head 2 while pressing the plug body 1 with a hand or a tool, the angular ridges 8 bite into the inner wall 7 ′ (in other words, The rod portion 3 of the plug body 1 is mounted in a synthetic resin tube 7, and the tip of the synthetic resin tube 7 is forcibly engaged with the receiving groove 4 to be clamped, thereby reducing the diameter. To clamp the rod 3. Further, the test plug A can be detached from the synthetic resin tube 7 by rotating in the opposite direction to the above rotation.
【0012】[0012]
【発明の効果】本発明は前記の通りの構成であるから、
押圧しつつ回動させることにより合成樹脂管に簡単に挿
着組付けることができ、また、挿着組付けた後、水圧を
負荷しても、螺旋状の突条が合成樹脂管の内壁に喰い込
んでいるため、該水圧に耐え合成樹脂管より外れること
がなく、かつ、Oリングの存在により水漏れがなく、合
成樹脂管の水圧テスト(水漏れの有無)を行うことがで
きる。The present invention has the configuration described above,
By rotating while pressing, it can be easily inserted and attached to the synthetic resin pipe, and even after applying water pressure, the spiral ridges are attached to the inner wall of the synthetic resin pipe. Since it is bitten, it can withstand the water pressure and does not come off the synthetic resin pipe, and there is no water leakage due to the presence of the O-ring, so that a water pressure test (whether there is water leakage) of the synthetic resin pipe can be performed.
【0013】また、合成樹脂管の先端が受入溝内に挾入
して縮径して棒杆部(プラグ本体)を挾持するので圧力
が増大しても尚一層樹脂管より外れにくいプラグを提供
できる。[0013] Further, since the end of the synthetic resin tube is inserted into the receiving groove and reduced in diameter to clamp the rod portion (plug main body), even if the pressure increases, it is possible to provide a plug which is harder to come off from the resin tube. it can.
【図1】テストプラグと合成樹脂管との関係を示す一部
欠截正面図。FIG. 1 is a partially cutaway front view showing a relationship between a test plug and a synthetic resin tube.
【図2】使用状態を示す断面図。FIG. 2 is a sectional view showing a use state.
【図3】図2の一部拡大図。FIG. 3 is a partially enlarged view of FIG. 2;
【符号の説明】 1 プラグ本体 2 摘み用頭部 3 棒杆部 4 受入溝 5 凹溝 6 Oリング 7 合成樹脂管 8 突条[Description of Signs] 1 Plug body 2 Picking head 3 Bar / rod portion 4 Receiving groove 5 Concave groove 6 O-ring 7 Synthetic resin tube 8 Ridge
Claims (1)
杆部を突設してプラグ本体を構成し、該プラグ本体の前
記棒杆部の先端側周側に凹溝を設け、該凹溝に合成樹脂
管の内壁に圧接して縮径するOリングを嵌着し、このO
リングと前記摘み用頭部との間の、前記棒杆部の周側部
に、前記合成樹脂管の内壁に喰い込む突条を螺旋状にし
て設けると共に、摘み用頭部の前記片面に、前記棒杆部
を取り囲み、前記合成樹脂管の末端を挾入する受入溝を
設けた、ポリエチレン管等の合成樹脂管用テストプラ
グ。1. A plug body is formed by projecting a rod portion having a smaller diameter than the head portion on one surface of a picking head portion, and a concave groove is provided on the distal end side peripheral side of the rod portion of the plug body. An O-ring that is pressed into contact with the inner wall of the synthetic resin pipe to reduce the diameter is fitted into the groove, and this O-ring is fitted.
Between the ring and the picking head, on the peripheral side of the rod portion, a ridge that bites into the inner wall of the synthetic resin tube is provided in a spiral shape, and on one surface of the picking head, A test plug for a synthetic resin tube such as a polyethylene tube, wherein the test plug surrounds the rod portion and has a receiving groove for inserting the end of the synthetic resin tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10088388A JP2875250B1 (en) | 1998-04-01 | 1998-04-01 | Test plugs for synthetic resin tubes such as polyethylene tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10088388A JP2875250B1 (en) | 1998-04-01 | 1998-04-01 | Test plugs for synthetic resin tubes such as polyethylene tubes |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2875250B1 JP2875250B1 (en) | 1999-03-31 |
JPH11287387A true JPH11287387A (en) | 1999-10-19 |
Family
ID=13941421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10088388A Expired - Fee Related JP2875250B1 (en) | 1998-04-01 | 1998-04-01 | Test plugs for synthetic resin tubes such as polyethylene tubes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2875250B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10063517A1 (en) * | 2000-12-20 | 2002-07-04 | Uponor Rohrsysteme Gmbh | Pipe cap comprises tubular sleeve with self-tapping thread on its outer surface and hexagonal head, O-ring being fitted into peripheral groove at front end of sleeve |
-
1998
- 1998-04-01 JP JP10088388A patent/JP2875250B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10063517A1 (en) * | 2000-12-20 | 2002-07-04 | Uponor Rohrsysteme Gmbh | Pipe cap comprises tubular sleeve with self-tapping thread on its outer surface and hexagonal head, O-ring being fitted into peripheral groove at front end of sleeve |
DE10063517C2 (en) * | 2000-12-20 | 2002-12-19 | Uponor Rohrsysteme Gmbh | Forcing plugs for a pipeline |
Also Published As
Publication number | Publication date |
---|---|
JP2875250B1 (en) | 1999-03-31 |
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