CN204756279U - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN204756279U CN204756279U CN201520541897.9U CN201520541897U CN204756279U CN 204756279 U CN204756279 U CN 204756279U CN 201520541897 U CN201520541897 U CN 201520541897U CN 204756279 U CN204756279 U CN 204756279U
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- CN
- China
- Prior art keywords
- honeycomb duct
- bellows
- protruding structure
- self
- hand member
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Abstract
The utility model provides an expansion joint, including the bellows, weld in the left flange interface of bellows left end, weld in the right flange interface of bellows right -hand member, flange interface inboard welding in the right side has the right honeycomb duct coaxial with the bellows, right side honeycomb duct left end has the protruding structure of infolding, just is in the protruding structure department of infolding is provided with right self tightening sealing spare, flange interface inboard welding in a left side has the left honeycomb duct coaxial with the bellows, left side honeycomb duct right -hand member has the outer protruding structure of rolling over, just is in it is provided with left self tightening sealing spare to roll over protruding structure department outward, the left honeycomb duct right -hand member outside is located to right side honeycomb duct left end cover for the relative contact seal with left self tightening sealing spare of right side self tightening sealing spare. Pass through the honeycomb duct that the sealing member is sealed through one end and flange interface connection, the other end, can realize the water conservancy diversion that expansion joint can liquid promptly, satisfy the thermal stretching of pipeline, have and to realize highly sealedly, guarantee the cleanness of bellows inner wall, extension expansion joint practical life.
Description
Technical field
The utility model relates to a kind of expansion joint.
Background technique
Expansion joint is by forming the bellows (a kind of elastic element) of its operative body and holding the annexes such as pipe, support, flange, conduit to form.Be the additional stress in order to compensate because temperature difference and mechanical vibration cause, and be arranged on a kind of flexible structure on container shell or pipeline.Utilizing effective dilatation of its operative body bellows, to absorb pipeline, conduit, container etc. by reason and the dimensional changes produced such as expanding with heat and contract with cold, also can be used for noise-and-vibration-reduction.In heat supply, when heating up to prevent heat supply pipeline, causing pipe deforming or destruction due to thermal stretching or temperature stress, needing to arrange compensator on pipeline, to compensate the thermal stretching of pipeline, thus the stress reducing tube wall and the active force acted on valve member or supporting structure.
But bellows in use exists very large problem, be exactly clear up more difficult after bellows inwall has dirt, long-time cleaning is clean, and easy corrosion and damage bellows, causes expansion joint not use.
Summary of the invention
For prior art Problems existing, the utility model provides a kind of expansion joint, be connected with flange-interface by one end, the other end by raised structures and Sealing sealing honeycomb duct, namely can realize the water conservancy diversion of expansion energy-saving liquid, meet the thermal stretching of pipeline, have and can realize high-seal, ensure the clean of bellows inwall, extend expansion joint physical life, and Sealing has self-tightening sealing function, can enhanced leaktightness effect further after pipeline thermal is extended, good sealing effect.
The technical solution of the utility model is: a kind of expansion joint, the right flange-interface comprising bellows, be welded in the left flange-interface of bellows left end, be welded in bellows right-hand member; The right honeycomb duct coaxial with bellows is welded with inside described right flange-interface; Described right honeycomb duct is positioned at bellows interior, and right-hand member is welded in inside right flange-interface, left end with infolding protruding structure, and is provided with right self-tightening sealing part at described infolding protruding structure place;
The left honeycomb duct coaxial with bellows is welded with inside described left flange-interface; Described left honeycomb duct is positioned at bellows interior, and left end is welded in inside left flange-interface, right-hand member with outer folding protruding structure, and is provided with left self-tightening sealing part at described outer folding protruding structure place;
Described right honeycomb duct left end is sheathed on outside left honeycomb duct right-hand member, make infolding protruding structure and left honeycomb duct right-hand member outer side wall close contact, outer folding protruding structure and right honeycomb duct left end inwall close contact, and right self-tightening sealing part contacts sealing relatively with left self-tightening sealing part.
Further, described right self-tightening sealing part and left self-tightening sealing part opposite side is right angle tooth-shape structure and inclined-plane is oppositely arranged.After pipeline thermal is extended, pressure is larger, fits tightr, reaches interior pressure self-tightening sealing, good sealing effect.
Further, the crown angle of Sealing right angle profile of tooth is 45 degree.Ensure that contact of incline plane face is large, sealing effect is better.
The beneficial effects of the utility model are: be connected with flange-interface by one end, the other end by raised structures and Sealing sealing honeycomb duct, namely the water conservancy diversion of expansion energy-saving liquid can be realized, meet the thermal stretching of pipeline, have and can realize high-seal, ensure the clean of bellows inwall, extend expansion joint physical life, and Sealing has self-tightening sealing function, can enhanced leaktightness effect further after pipeline thermal is extended, good sealing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model expansion joint;
Fig. 2 is the partial enlarged drawing of right self-tightening sealing part and left self-tightening sealing part junction.
In figure: 1 be left flange-interface, 2 be right flange-interface, 3 be bellows, 4 be left honeycomb duct, 5 be right honeycomb duct, 6 be pull bar, 7 be otic placode, 8 be left self-tightening sealing part, 9 be right self-tightening sealing part, 10 be infolding protruding structure, 11 for outer folding protruding structure.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of expansion joint, the right flange-interface 2 comprising bellows 3, be welded in the left flange-interface 1 of bellows left end, be welded in bellows right-hand member; The right honeycomb duct 5 coaxial with bellows 3 is welded with inside described right flange-interface 2; Described right honeycomb duct 5 is positioned at bellows interior, and right-hand member is welded in inside right flange-interface 2, left end with infolding protruding structure 10, and is provided with right self-tightening sealing part 9 at described infolding protruding structure 10 place; The left honeycomb duct 4 coaxial with bellows 3 is welded with inside described left flange-interface 1; Described left honeycomb duct 4 is positioned at bellows interior, and left end is welded in inside left flange-interface 1, right-hand member with outer folding protruding structure 11, and is provided with left self-tightening sealing part 8 at described outer folding protruding structure 11 place; Described right honeycomb duct 5 left end is sheathed on outside left honeycomb duct 4 right-hand member, make infolding protruding structure 10 and left honeycomb duct 4 right-hand member outer side wall close contact, outer folding protruding structure 11 and right honeycomb duct 5 left end inwall close contact, and right self-tightening sealing part 9 contacts sealing relatively with left self-tightening sealing part 8.Be connected with flange-interface by one end, the other end by raised structures and Sealing sealing honeycomb duct, namely can realize the water conservancy diversion of expansion energy-saving liquid, meet the thermal stretching of pipeline, have and can realize high-seal, ensure the clean of bellows inwall, extend expansion joint physical life
As shown in Figure 2, described right self-tightening sealing part 9 is with left self-tightening sealing part 8 opposite side is right angle tooth-shape structure, crown angle is 45 degree and inclined-plane is oppositely arranged.The seal has self-tightening sealing function, can enhanced leaktightness effect further after pipeline thermal is extended, good sealing effect.
Although the utility model with preferred embodiment disclose as above, so itself and be not used to limit the utility model.Have in the utility model art and usually know the knowledgeable, not departing from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when being as the criterion depending on those as defined in claim.
Claims (3)
1. an expansion joint, is characterized in that: the right flange-interface (2) comprising bellows (3), be welded in the left flange-interface (1) of bellows left end, be welded in bellows right-hand member; Described right flange-interface (2) inner side is welded with the right honeycomb duct (5) coaxial with bellows (3); Described right honeycomb duct (5) is positioned at bellows interior, right-hand member is welded in right flange-interface (2) inner side, left end with infolding protruding structure (10), and is provided with right self-tightening sealing part (9) at described infolding protruding structure (10) place;
Described left flange-interface (1) inner side is welded with the left honeycomb duct (4) coaxial with bellows (3); Described left honeycomb duct (4) is positioned at bellows interior, left end is welded in left flange-interface (1) inner side, right-hand member with outer folding protruding structure (11), and is provided with left self-tightening sealing part (8) at described outer folding protruding structure (11) place;
Described right honeycomb duct (5) left end is sheathed on outside left honeycomb duct (4) right-hand member, make infolding protruding structure (10) and left honeycomb duct (4) right-hand member outer side wall close contact, outer folding protruding structure (11) and right honeycomb duct (5) left end inwall close contact, and right self-tightening sealing part (9) contacts sealing relatively with left self-tightening sealing part (8).
2. a kind of expansion joint according to claim 1, is characterized in that: described right self-tightening sealing part (9) and left self-tightening sealing part (8) opposite side are right angle tooth-shape structure and inclined-plane is oppositely arranged.
3. a kind of expansion joint according to claim 2, is characterized in that: the crown angle of Sealing right angle profile of tooth is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520541897.9U CN204756279U (en) | 2015-07-23 | 2015-07-23 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520541897.9U CN204756279U (en) | 2015-07-23 | 2015-07-23 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204756279U true CN204756279U (en) | 2015-11-11 |
Family
ID=54470984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520541897.9U Expired - Fee Related CN204756279U (en) | 2015-07-23 | 2015-07-23 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204756279U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015808A (en) * | 2016-06-30 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | High-temperature-resistant corrugated pipe compensator |
| CN111420948A (en) * | 2020-04-25 | 2020-07-17 | 重庆三联管道设备有限公司 | Metal expansion joint belt cleaning device |
| CN112050240A (en) * | 2020-09-09 | 2020-12-08 | 湖南衡兴环保科技开发有限公司 | Straight-through type flue expansion joint |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
| CN111173606B (en) * | 2020-02-11 | 2024-06-11 | 中国船舶集团有限公司第七一一研究所 | Integral wave-shaped expansion joint of honeycomb duct |
-
2015
- 2015-07-23 CN CN201520541897.9U patent/CN204756279U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015808A (en) * | 2016-06-30 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | High-temperature-resistant corrugated pipe compensator |
| CN111173606B (en) * | 2020-02-11 | 2024-06-11 | 中国船舶集团有限公司第七一一研究所 | Integral wave-shaped expansion joint of honeycomb duct |
| CN111420948A (en) * | 2020-04-25 | 2020-07-17 | 重庆三联管道设备有限公司 | Metal expansion joint belt cleaning device |
| CN111420948B (en) * | 2020-04-25 | 2022-03-11 | 重庆三联管道设备有限公司 | Metal expansion joint belt cleaning device |
| CN112050240A (en) * | 2020-09-09 | 2020-12-08 | 湖南衡兴环保科技开发有限公司 | Straight-through type flue expansion joint |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
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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: 20151111 Termination date: 20210723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |