CN207268189U - Automobile flexible joint - Google Patents
Automobile flexible joint Download PDFInfo
- Publication number
- CN207268189U CN207268189U CN201720896894.6U CN201720896894U CN207268189U CN 207268189 U CN207268189 U CN 207268189U CN 201720896894 U CN201720896894 U CN 201720896894U CN 207268189 U CN207268189 U CN 207268189U
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- CN
- China
- Prior art keywords
- bellows
- flexible joint
- telescoping tube
- outer net
- automobile flexible
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- 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.)
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a kind of automobile flexible joint, including outer net, bellows, telescoping tube and cap, the bellows interior is set with telescoping tube, and bellows outer cover is equipped with outer net, the bellows includes outer layer and internal layer, has gap between the outer layer and the internal layer.The utility model is more resistant against the ability for causing local buckling or general instability；Bellows ensures the performance not leaked under certain inside and outside differential pressure action, and sylphon seal is good；Concentrated force, pressure and moment of flexure can be born, bearing load is better than singel-ply bellows.
Description
Technical field
It the utility model is related to automobile flexible joint field.
Background technology
Automobile flexible joint connects engine and exhaust system, has been absorbing, the heavy connection of damping effect.Use automobile
Flexible hinge can increase the comfort of passenger, and the effective working environment for improving purifier in exhaust system, there is protection
The effect of with air purifier, service life of aeroengine is extended.Traditional automobile flexible joint generally have outer mesh grid, bellows,
Cap, interior mesh grid composition.Wherein, bellows raw material is the thin material of stainless steel band, and shaped argon arc welding is into interior pipe and cylindrical
Pipe；Inside and outside circle pipe sleeve is unified, inner and outer welding difference 120o ~ 180o；Using the peculiar air-tightness of pipe itself, using water as medium
Hydroforming bellows；Inside and outside bellows structure is identical to be fitted closely, gapless.
The bellows of said structure finds that it has the disadvantage that in actual use：1. resistance causes local buckling
Or the ability of general instability is weaker；2. bellows easily leaks under certain inside and outside differential pressure action, sylphon seal compared with
Difference.
Utility model content
The purpose of the utility model is to overcome defect existing in the prior art, there is provided a kind of automobile flexible joint.
The utility model is achieved by the following technical solution：A kind of automobile flexible joint, including outer net, bellows, stretch
The draw and cap, the bellows interior are set with telescoping tube, and bellows outer cover is equipped with outer net, and the bellows includes outer layer
And internal layer, there is gap between the outer layer and the internal layer.
In above-mentioned technical proposal, the outer net end wherein one end is fixed with cap, and the outer net end other end is fixed
There is bound edge cap, the bound edge cap includes the Part I of straight barrel type, and has the Part II of tubaeform annular wall, and described first
Part is connected with the Part II, wherein the Part II blocks the part of the outer net.
In above-mentioned technical proposal, be fixedly installed at the both ends of the bellows annular inner wall, the two of the telescoping tube
End is connected with the inner wall respectively.
In above-mentioned technical proposal, stage portion is provided with the inner wall, the stage portion has inclined wall, described to stretch
The draw is abutted against with the stage portion.
In above-mentioned technical proposal, on the end circumference that the inner wall coordinates with the telescoping tube spot welding be connected.
In above-mentioned technical proposal, the outer net is mesh grid.
The utility model has the advantages that：1）More resistant against the ability for causing local buckling or general instability；2）
Bellows ensures the performance not leaked under certain inside and outside differential pressure action, and sylphon seal is good；3）It can bear to concentrate
Power, pressure and moment of flexure, bearing load are better than singel-ply bellows；4）Sealing is realized between engine and exhaust system in
Flexible connection；Correct the vibration deviation of engine；5）The service life of vehicle whole gas extraction system can more be extended.
Brief description of the drawings
Fig. 1 is the structure diagram of the double-ply bellows of the utility model.
Fig. 2 is the structure diagram of the utility model flexible hinge.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：Referring to Fig. 1 to Fig. 2,
Automobile flexible joint, including outer net 1, bellows 2, telescoping tube 3 and cap 4,2 internal sleeve of bellows are equipped with telescoping tube 3, ripple
2 outer cover of pipe is equipped with outer net 1, and described 1 end of outer net wherein one end is fixed with cap 4.Wherein, the outer net 1 is mesh grid.Institute
Stating bellows 2 includes outer layer 20 and internal layer 21, has gap between the outer layer 20 and the internal layer 21.
In said structure, since bellows 2 has spaced internal layer 21 and an outer layer 20, said structure is more resistant against drawing
Play the ability of local buckling or general instability；And bellows ensures the performance not leaked under certain inside and outside differential pressure action,
Sylphon seal is good；Concentrated force, pressure and moment of flexure can be born, bearing load is better than singel-ply bellows.The vapour of said structure
Car flexible hinge realizes sealing flexible connection between engine and exhaust system in the application；Correct the vibration deviation energy of engine
Power is stronger；The service life of vehicle whole gas extraction system can more be extended.
The 1 end other end of outer net is fixed with bound edge cap 5, and the bound edge cap includes the Part I 50 of straight barrel type, and
Part II 51 with tubaeform annular wall, the Part I 50 and the Part II 51 connect, wherein described second
Block the part of the outer net 1 in part 51.
Said structure, when vehicle adapted welded pipe puts interior hatband end and carries out welding, the weldering of bound edge cap end external flange internal diameter
Connect fixation；Since bound edge cap straight section is longer, adjustment welding position is easy；In addition the Part II of bound edge cap is by outer mesh grid bag
Wrap up in；During welding, there is protective effect to mesh grid, prevent that welding slag from dropping the twine that fuses in mesh grid.
Be fixedly installed the inner wall 6 of annular at the both ends of the bellows 2, the both ends of the telescoping tube 3 respectively with it is described
Inner wall 6 connects.Be provided with stage portion 60 on the inner wall 6, the stage portion 60 has an inclined wall, the telescoping tube 3 with
The stage portion 60 abuts against.Spot welding is connected on the end circumference that the inner wall coordinates with the telescoping tube.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments.Described in the above embodiment and specification in the application
It is the principle of the utility model, the present invention also has various change and changes without departing from the spirit and scope of the present invention
Into.Above-mentioned changes and improvements are both fallen within the range of claimed invention.
Claims (6)
1. automobile flexible joint, including outer net, bellows, telescoping tube and cap, the bellows interior are set with telescoping tube, ripple
Pipe outer cover is equipped with outer net, it is characterised in that：The bellows includes outer layer and internal layer, has between the outer layer and the internal layer
There is gap.
2. the automobile flexible joint as claimed in claim 1, it is characterised in that：1 end of outer net wherein one end is fixed with cap
Lid, the outer net end other end are fixed with bound edge cap, and the bound edge cap includes the Part I of straight barrel type, and with tubaeform
The Part II of annular wall, the Part I are connected with the Part II, wherein the Part II blocks the outer net
Part.
3. automobile flexible joint as claimed in claim 1, it is characterised in that：Annular is fixedly installed at the both ends of the bellows
Inner wall, the both ends of the telescoping tube are connected with the inner wall respectively.
4. automobile flexible joint as claimed in claim 3, it is characterised in that：Stage portion, the step are provided with the inner wall
Portion has inclined wall, and the telescoping tube is abutted against with the stage portion.
5. automobile flexible joint as claimed in claim 3, it is characterised in that：The inner wall is justified with the end that the telescoping tube coordinates
Spot welding connects on week.
6. automobile flexible joint as claimed in claim 1, it is characterised in that：The outer net is mesh grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896894.6U CN207268189U (en) | 2017-07-24 | 2017-07-24 | Automobile flexible joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896894.6U CN207268189U (en) | 2017-07-24 | 2017-07-24 | Automobile flexible joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268189U true CN207268189U (en) | 2018-04-24 |
Family
ID=61959760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720896894.6U Active CN207268189U (en) | 2017-07-24 | 2017-07-24 | Automobile flexible joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268189U (en) |
-
2017
- 2017-07-24 CN CN201720896894.6U patent/CN207268189U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |