CN202597945U - Welding connection structure of corrugated pipe and joints - Google Patents
Welding connection structure of corrugated pipe and joints Download PDFInfo
- Publication number
- CN202597945U CN202597945U CN 201220095224 CN201220095224U CN202597945U CN 202597945 U CN202597945 U CN 202597945U CN 201220095224 CN201220095224 CN 201220095224 CN 201220095224 U CN201220095224 U CN 201220095224U CN 202597945 U CN202597945 U CN 202597945U
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- welding
- joint
- bellows
- corrugated pipe
- boss
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Abstract
The utility model relates to a welding connection structure of a corrugated pipe and joints. The welding connection structure of the corrugated pipe and the joints comprises the corrugated pipe and caliper flange joints, inserting straight pipes are respectively welded on two end portions of the corrugated pipe, welding bosses used for being connected with the end portions of the corrugated pipe are arranged at one ends of the inserting straight pipes, and the caliper flange joints are connected with the other ends of the inserting straight pipes; arc grooves are arranged on positions of the surfaces of the welding bosses, wherein the positions are close to connecting ends of the corrugated pipe; butt joint bosses which are connected with the end portions of the inserting straight pipes in a butt joint mode are arranged on inner walls of the caliper flange joints, and inward concave lug grooves are arranged on bending positions of the inner walls of the butt joint bosses and the caliper flange joints. The welding connection structure increases the soundness of the welding, and the arc grooves are arranged on the welding bosses, when welding rods are welded, the welding molten uniform consistency is achieved, tension contraction of the corrugated pipe is increased, and quality yield is improved; in addition, the welding connection structure has the advantages of being convenient and rapid to install, simple in structure, safe, reliable, low in maintenance cost, stable in connection, high in sealing performance, long in service life, and suitable for mass production.
Description
Technical field
The utility model relates to a kind of bellows, what be specifically related to is the welding connection structure of a kind of bellows and joint.
Background technique
Metal bellows is widely used in fields such as automatic control and instrumentation, vacuum technique, mechanical industry, power industry, communications and transportation and atomic energy industry as sensing assembly, dampening assembly, compensation assembly, black box, valve member and pipeline connecting parts.Existing metal bellows Placement is divided into flange connection, welding, screwed connection, rapid pipe joint connection, and the small diameter metal flexible pipe generally adopts screw thread to be connected with rapid pipe joint, and larger caliber generally adopts flange to connect and welding.
The linkage structure of domestic each bellows is more complicated all, influences the large batch of production of bellows, the especially existing metal bellows that is welded to connect; Domestic title welding type metallic bellows predominant use is that equipment needs vacuum environment or the vibration isolation environment is arranged; Also or special air bound leave, also be applied to semiconductor equipment, optical equipment, vacuum precision instrument, gas outlet means, analytical instrument, nuclear energy often and close attached device, accelerator, medical equipment, inspection equipment etc., at present domestic still do not have a manufacturing technology; Generally weld maintenance at home by external inlet hose; But because during the welding of existing bellows and joint because bond waviness tube thickness and joint structure there are differences, cause easily welding dissolve inhomogeneous; Sealing is poor; And welded structure is unstable, installs inconvenient and the defect rate height, influences the working life of bellows pulling force contractibility and bellows.
The model utility content
To the deficiency that exists on the existing technology, it is a kind of simple in structure, quick and easy for installation that the utility model purpose provides, and can guarantee the welding connection structure of inotropic bellows of bellows pulling force and joint, and its welding dissolves uniformity consistency, and maintenance cost is low.
To achieve these goals, the utility model is to realize through following technological scheme:
The welding connection structure of bellows and joint; It comprises bellows and clamp flanged joint, it is characterized in that, said bellows two end part are welded with the grafting straight tube respectively; One end of said grafting straight tube is provided for connecting the welding boss of corrugated tube end, and its other end connects the clamp flanged joint; Establish curve bath near the position of bellows connecting end on the surface of said welding boss, increasing the soundness of welding, making the bellows welding dissolve uniformity consistency, guaranteeing bellows pulling force contractibility; The inwall of said clamp flanged joint is provided with the butt joint boss of butt joint grafting straight tube end; The inwall bending position of said butt joint boss and clamp flanged joint is provided with the ear groove of indent; Increase grafting straight tube and clamp flange tension strength through the ear groove, guarantee the stability of welding; The said grafting straight tube the other end is inserted in the grafting straight tube, and resists on the butt joint boss, is welded as a whole through argon arc welding at the seam crossing of said clamp flange and straight tube.
Further, also be provided with circular groove on the outer surface of said clamp flanged joint, be used for fixing the lap joint flange position.
Further, the longitudinal cross-section semicircular in shape of said curve bath, its radius is 0.7mm; The distance that said curve bath and welding are used to be connected the end face of bellows on the boss is 0.5mm.
Further, said butt joint boss and clamp flanged joint are integral structure, and said welding boss and grafting straight tube are integral structure.
The utility model is through being connected with the place of being welded to connect of clamp flanged joint bellows through welding Cangjie straight tube; And be provided with the welding boss and dock boss; Increase the soundness of welding, and be provided with curve bath at the welding boss, circle makes welding rod welding when welding dissolve uniformity consistency; Increase its bellows pulling force and shrink, yield improves the quality; And it has quick and easy for installationly, simple in structure, safe and reliable, and maintenance cost is low, connects firmly, and the high advantage with long service life of sealing is fit to batch process.
Description of drawings
Specify the utility model below in conjunction with accompanying drawing and embodiment;
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the M enlarged view of Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with embodiment, further set forth the utility model.
Referring to Fig. 1 and Fig. 2, the bellows of present embodiment and the welding connection structure of joint, it comprises bellows 10 and clamp flanged joint 21; Be welded with grafting straight tube 20 respectively at bellows 10 two end part; One end of this grafting straight tube 20 is provided for connecting the welding boss 21 of corrugated tube end, and welding boss 21 be an integral structure with grafting straight tube 20, on the outer surface that welds boss 21, is processed with the curve bath 22 of longitudinal cross-section semicircular in shape near the position of bellows connecting end; These curve bath 22 radiuses are 0.7mm; It is 0.5mm with the spacing of the end face that is connected bellows 10, and it increases the soundness of welding when welding; Make bellows 10 welding dissolve uniformity consistency, guaranteed bellows pulling force contractibility simultaneously.
The other end at grafting straight tube 20 is that the outer end is welded to connect clamp flanged joint 30, is processed with the butt joint boss 31 of butt joint grafting straight tube end on the inwall of this clamp flanged joint 30, and this butt joint boss 31 is an integral structure with clamp flanged joint 30.The other end of grafting straight tube 20 is inserted in the clamp flanged joint 30, and resist on butt joint boss 31 its end; During welding, be welded as a whole through argon arc welding at the seam crossing of clamp flanged joint 30 with grafting straight tube 20, welding back clamp flanged joint and grafting straight tube 20 total lengths are 31.4mm.
In the present embodiment; What deserves to be mentioned is, be processed with the ear groove 32 of indent in the butt joint boss 31 and the inwall bending position of clamp flanged joint 30, this ear groove 32 is to clamp flanged joint 30 inboard extensions; The bottom is an arc; Two grooves are straight flange and hypotenuse, and present embodiment increases grafting straight tube 20 and clamp flanged joint 30 tension strengths through ear groove 32, further guarantees the stability of welding.
In addition, also be provided with circular groove 33 on the outer surface of clamp flanged joint 30, be used for fixing the lap joint flange position.The length of the bellows 10 of present embodiment is 137.2mm, and distance is 200 ± 2mm between the two clamp flanged joints.
The utility model is through being connected with the place of being welded to connect of clamp flanged joint 30 bellows 10 through welding grafting straight tube 20; And be provided with welding boss 21 and dock boss 31; Increase the soundness of welding, and be provided with curve bath 22 at the welding boss, circle makes welding rod welding when welding dissolve uniformity consistency; Increase its bellows pulling force and shrink, yield improves the quality; And it has quick and easy for installationly, simple in structure, safe and reliable, and maintenance cost is low, connects firmly, and the high advantage with long service life of sealing is fit to batch process.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. the welding connection structure of bellows and joint; It comprises bellows and clamp flanged joint; It is characterized in that; Said bellows two end part are welded with the grafting straight tube respectively, and an end of said grafting straight tube is provided for connecting the welding boss of corrugated tube end, and its other end connects the clamp flanged joint; Establishing curve bath near the position of bellows connecting end on the surface of said welding boss; The inwall of said clamp flanged joint is provided with the butt joint boss of butt joint grafting straight tube end, and the inwall bending position of said butt joint boss and clamp flanged joint is provided with the ear groove of indent; The said grafting straight tube the other end is inserted in the grafting straight tube, and resists on the butt joint boss, is welded as a whole through argon arc welding at the seam crossing of said clamp flange and straight tube.
2. the welding connection structure of bellows according to claim 1 and joint is characterized in that, also is provided with circular groove on the outer surface of said clamp flanged joint.
3. the welding connection structure of bellows according to claim 1 and 2 and joint is characterized in that, the longitudinal cross-section semicircular in shape of said curve bath, and its radius is 0.7mm; The distance that said curve bath and welding are used to be connected the end face of bellows on the boss is 0.5mm.
4. the welding connection structure of bellows according to claim 1 and joint is characterized in that, said butt joint boss and clamp flanged joint are integral structure, and said welding boss and grafting straight tube are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220095224 CN202597945U (en) | 2012-03-14 | 2012-03-14 | Welding connection structure of corrugated pipe and joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220095224 CN202597945U (en) | 2012-03-14 | 2012-03-14 | Welding connection structure of corrugated pipe and joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597945U true CN202597945U (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220095224 Expired - Fee Related CN202597945U (en) | 2012-03-14 | 2012-03-14 | Welding connection structure of corrugated pipe and joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620082A (en) * | 2012-03-14 | 2012-08-01 | 昆山振昆纳米科技有限公司 | Welded connection structure of bellows and joints |
| CN108760819A (en) * | 2018-05-22 | 2018-11-06 | 广州兴森快捷电路科技有限公司 | Welding quality test device and its detection method |
-
2012
- 2012-03-14 CN CN 201220095224 patent/CN202597945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620082A (en) * | 2012-03-14 | 2012-08-01 | 昆山振昆纳米科技有限公司 | Welded connection structure of bellows and joints |
| CN108760819A (en) * | 2018-05-22 | 2018-11-06 | 广州兴森快捷电路科技有限公司 | Welding quality test device and its detection method |
| CN108760819B (en) * | 2018-05-22 | 2020-08-18 | 广州兴森快捷电路科技有限公司 | Welding quality detection device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |