JPH035886Y2 - - Google Patents
Info
- Publication number
- JPH035886Y2 JPH035886Y2 JP7240184U JP7240184U JPH035886Y2 JP H035886 Y2 JPH035886 Y2 JP H035886Y2 JP 7240184 U JP7240184 U JP 7240184U JP 7240184 U JP7240184 U JP 7240184U JP H035886 Y2 JPH035886 Y2 JP H035886Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cylindrical body
- nut
- collet
- plug
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
この考案は主として発電用ボイラの溶接用鋼管
の耐圧テストに使用される水圧、試験用治具に関
し、より具体的にはボイラに溶接されているパイ
プ開口部の密封に際してシール個所をパイプの開
先部で行うようにした水圧試験用治具に係る。[Detailed description of the invention] This invention mainly relates to water pressure and test jigs used for pressure tests of welded steel pipes for power generation boilers, and more specifically, for sealing the openings of pipes welded to boilers. This relates to a water pressure test jig in which the sealing point is performed at the grooved part of the pipe.
前記形式の治具として本出願人は昭和59年５月
４日付の実用新案登録願第号同第号（考案の名称
はいずれも「ボイラ用水圧試験治具」）の明細書
中で技術手段を開示しているが、この手段はいず
れも治具をパイプに装着する場合にはパイプ外表
面に形成した突条を必須の構成要素とするもので
ある。 As for the jig of the above type, the present applicant has disclosed the technical means in the specification of the utility model registration application No. 1 dated May 4, 1982 (both names of the devices are "water pressure test jig for boilers"). However, in all of these means, when a jig is attached to a pipe, a protrusion formed on the outer surface of the pipe is an essential component.
この考案は上記した技術的手段で達成されると
同等の効果を得るに際してパイプ外表面に何等の
外的加工を施こすことのないボイラ用水圧試験治
具を提供しようとするものである。 This invention aims to provide a water pressure test jig for boilers that does not require any external processing on the outer surface of the pipe in order to obtain the same effects as those achieved by the above-mentioned technical means.
この考案の具体的実施例を添付図面を参照にし
ながら説明すれば次のとおりである。 A specific embodiment of this invention will be described below with reference to the accompanying drawings.
第１図はこの考案の治具を鎖線図で模式的に表
示したボイラＢ、パイプＰに対応させて示す要部
断面説明図でこの治具は図面付号１のコレツト、
２のスリーブ、３のプラグおよび４のＯリングの
各部材で構成されている。 Figure 1 is an explanatory cross-sectional view of the main parts of the jig of this invention, which is shown schematically in chain diagrams, corresponding to the boiler B and the pipe P.
It consists of 2 sleeves, 3 plugs, and 4 O-rings.
コレツト１は基部円筒１１とこれに連接する複
数個に分割された円弧部１２とで形成されてお
り、基部円筒１１の内面にはパイプＰの外表面に
喰込む程度の径をもつた喰込片１５が、また外面
にはねじ１６が形成されている。円弧部１２の内
径はほぼパイプＰの外径と同径に形成されており
その内径面には噛合片１３が、また外表面にはテ
ーパ部１４がそれぞれ形成されている。しかもテ
ーパ部１４の傾斜方向は、パイプＰの開先方向に
上傾するように形成されている。 The collet 1 is formed of a base cylinder 11 and a circular arc portion 12 that is connected to the base cylinder and is divided into a plurality of parts. A piece 15 is also formed on the outer surface with a thread 16. The inner diameter of the arcuate portion 12 is approximately the same as the outer diameter of the pipe P, and a meshing piece 13 is formed on its inner diameter surface, and a tapered portion 14 is formed on its outer surface. Furthermore, the tapered portion 14 is formed to be inclined upward in the groove direction of the pipe P.
スリーブ２は円筒体２０として形成されてお
り、１側端にはナツト２１が設けられており、こ
のナツト２１のねじ２２はコレツトの基部円筒１
１のねじ１６とねじ着するように形成されてい
る。また円筒体の中間部にはコレツトのテーパ部
１４に対向し、しかもこの表面に近接する位置に
テーパ部２３が形成されている。そして円筒体の
他側部内面には後で詳述するプラグの締結用ねじ
２４が形成されている。 The sleeve 2 is formed as a cylindrical body 20 and is provided with a nut 21 at one end thereof, the thread 22 of this nut 21 being connected to the base cylinder 1 of the collet.
It is formed to be screwed onto the screw 16 of No. 1. Further, a tapered portion 23 is formed in the intermediate portion of the cylindrical body at a position opposite to the tapered portion 14 of the collet and close to the surface thereof. A plug fastening screw 24, which will be described in detail later, is formed on the inner surface of the other side of the cylindrical body.
プラグ３は円柱体として形成されており、この
プラグ３の外表面には前記したスリーブ２のねじ
２４にねじ着するねじ３１が設けられており、そ
してこのプラグ３の外側中央部にはナツト３２が
円柱体３４と一体的に固着されている。またこの
円柱体３４にはパイプＰとほぼ同径の凹溝３３が
形成されており、この凹溝座部３４にＯリング４
が装着されている。 The plug 3 is formed as a cylindrical body, and a screw 31 is provided on the outer surface of the plug 3 to be screwed into the screw 24 of the sleeve 2, and a nut 32 is provided on the outer center of the plug 3. is integrally fixed to the cylindrical body 34. Further, a groove 33 having approximately the same diameter as the pipe P is formed in this cylindrical body 34, and an O-ring 4 is installed in this groove seat 34.
is installed.
この考案の治具は上記各部材で構成されてお
り、その装着態様ならびに作用を特に第２図およ
び第３図を参照にしながら説明すれば次のとおり
である。 The jig of this invention is composed of the above-mentioned members, and the mounting manner and operation thereof will be explained below with particular reference to FIGS. 2 and 3.
上記構成の治具をパイプに装着する場合には、
先ず第１図示の状態にあるパイプＰの外表面に対
してコレツトの基部円筒１１の喰込片１５が喰い
込むように強制嵌着する。次いでスリーブ２のナ
ツト２１を回転し、第１図の矢印方向にスリーブ
自身を移動させると、コレツトの円弧部１２のテ
ーパ部１４とスリーブのテーパ部２３とが対接し
最終的には第２図示のように、噛合片１３がパイ
プＰの外表面に噛合することになる。このように
してコレツト１がパイプＰに対して強制固着され
る。 When attaching a jig with the above configuration to a pipe,
First, the biting piece 15 of the base cylinder 11 of the collet is forcibly fitted into the outer surface of the pipe P in the state shown in the first figure. Next, when the nut 21 of the sleeve 2 is rotated and the sleeve itself is moved in the direction of the arrow in FIG. The engaging piece 13 engages with the outer surface of the pipe P as shown in FIG. In this way, the collet 1 is forcibly fixed to the pipe P.
次いでこの状態にある治具部材のうちのプラグ
３をナツト３２を介して矢印方向に移動すれば、
第３図示のように、このプラグの凹溝３３内に装
着されているＯリング４はパイプＰの開先面５に
圧着される。このようにしてパイプＰの開先面と
プラグ３間の接触面とはシールされる。 Next, if the plug 3 of the jig members in this state is moved in the direction of the arrow via the nut 32,
As shown in the third figure, the O-ring 4 installed in the groove 33 of this plug is pressed against the groove surface 5 of the pipe P. In this way, the contact surface between the groove surface of the pipe P and the plug 3 is sealed.
この考案のボイラ用水圧試験治具は上記構成に
より、パイプ表面上に治具装着のための付加的装
置または加工を必要とせず、しかもパイプに対す
る治具の固着力はコレツト形状が分割された円弧
部でほぼ連続する円筒形であるためパイプ軸中心
に収斂状に加えられるので緊締力が均一である。 The water pressure test jig for boilers of this invention has the above-mentioned configuration, and does not require any additional equipment or processing for mounting the jig on the pipe surface.Moreover, the adhesion force of the jig to the pipe is determined by the shape of the collet divided into circular arcs. Since it has a cylindrical shape with almost continuous sections, the tightening force is uniform because it is applied in a convergent manner around the center of the pipe axis.
また、コレツトのテーパ部１４がパイプの開先
方向に上傾するように形成されているのでパイプ
内圧力の増加による治具全体への離脱方向の引張
力増加はコレツトに対しての押圧力即ちパイプへ
の噛合力を増加させるので治具自身の装着性が良
好である。 Furthermore, since the taper portion 14 of the collet is formed to be inclined upward in the groove direction of the pipe, an increase in the tensile force on the entire jig in the detachment direction due to an increase in the pressure inside the pipe causes a pressing force on the collet, i.e. Since the engagement force with the pipe is increased, the jig itself is easy to install.
その上シール材としてのＯリングは市販のもの
が使用でき、しかもこれの圧着方向はパイプの軸
心および水圧の推力方向と一致しているためその
圧着力は開先面の周面全体に均一に作用するので
シール効果が良好である。 Furthermore, a commercially available O-ring can be used as a sealing material, and since the direction of the crimping coincides with the axis of the pipe and the thrust direction of the water pressure, the crimping force is uniform over the entire circumference of the groove surface. The sealing effect is good.
この考案は前記実施例に限定されることなく、
例えば開先面形状またはコレツトの分割円弧部１
２の数、あるいは円弧部の噛合片１３の形状を例
えば突起片または突条の単体あるいはこれの組合
せにするとか、あるいはコレツトの基部円筒の喰
込片１５の形状等は設計上任意に選択できるもの
である。 This invention is not limited to the above embodiments, but
For example, the shape of the groove surface or the divided circular arc part 1 of the collet.
2, or the shape of the engaging piece 13 of the circular arc part, for example, a protruding piece or a protrusion, or a combination thereof, or the shape of the biting piece 15 of the base cylinder of the collet, etc., can be selected arbitrarily based on the design. It is something.
第１図はこの考案のボイラ用水圧試験治具の要
部断面説明図。第２図、第３図は同作用説明図。
１……コレツト、２……スリーブ、３……プラ
グ、４……Ｏリング、５……開先、１１……基部
円筒、１２……円弧部、１３……噛合片、１４，
２３……テーパ部、１５……喰込片、２０……円
筒体、２１……ナツト、３３……凹溝、３４……
円柱体。
FIG. 1 is an explanatory cross-sectional view of the main parts of the boiler hydraulic test jig of this invention. FIGS. 2 and 3 are explanatory views of the same action. 1... Collet, 2... Sleeve, 3... Plug, 4... O-ring, 5... Bevel, 11... Base cylinder, 12... Arc portion, 13... Engaging piece, 14,
23... Taper portion, 15... Biting piece, 20... Cylindrical body, 21... Nut, 33... Concave groove, 34...
Cylindrical body.
Claims (1)
１２および円弧部外表面にテーパ部１４を形成し
たコレツトと、ナツト２１とこのナツトに連接す
る円筒体２０の内表面でしかも前記テーパ部１４
と対向する位置にテーパ部２３を形成したスリー
ブ２とを基部円筒１１とナツト２１間でねじ着
し、しかも前記円筒体２０の開口部にＯリング４
を装着したプラグ３をねじ着して構成したことを
特徴とするボイラ用水圧試験治具。 A base cylinder 11, a plurality of circular arc parts 12 connected to the base cylinder, a collet having a tapered part 14 formed on the outer surface of the circular arc part, a nut 21, and the inner surface of the cylindrical body 20 connected to the nut, and the taper part 14.
A sleeve 2 having a tapered portion 23 formed at a position facing the cylindrical body 20 is screwed between the base cylinder 11 and the nut 21, and an O-ring 4 is attached to the opening of the cylindrical body 20.
A water pressure test jig for a boiler, characterized in that it is configured by screwing together a plug 3 equipped with a plug 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7240184U JPS60183850U (en) | 1984-05-17 | 1984-05-17 | Water pressure test jig for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7240184U JPS60183850U (en) | 1984-05-17 | 1984-05-17 | Water pressure test jig for boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60183850U JPS60183850U (en) | 1985-12-06 |
| JPH035886Y2 true JPH035886Y2 (en) | 1991-02-14 |
Family
ID=30610777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7240184U Granted JPS60183850U (en) | 1984-05-17 | 1984-05-17 | Water pressure test jig for boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60183850U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6778660B2 (en) * | 2017-07-03 | 2020-11-04 | 株式会社スギノマシン | Outer clamp type high pressure seal jig |
-
1984
- 1984-05-17 JP JP7240184U patent/JPS60183850U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60183850U (en) | 1985-12-06 |
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