CN203239706U - Corrugated pipe for torsion sealing - Google Patents
Corrugated pipe for torsion sealing Download PDFInfo
- Publication number
- CN203239706U CN203239706U CN 201320204206 CN201320204206U CN203239706U CN 203239706 U CN203239706 U CN 203239706U CN 201320204206 CN201320204206 CN 201320204206 CN 201320204206 U CN201320204206 U CN 201320204206U CN 203239706 U CN203239706 U CN 203239706U
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- CN
- China
- Prior art keywords
- connecting end
- bellows
- metal frame
- pipe body
- rubber
- 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 - Fee Related
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Abstract
The utility model relates to a corrugated pipe for torsion sealing. The corrugated pipe comprises a hollow pipe body, wherein the shaft section of the pipe body is trapezoid or rectangular, the cross section of the pipe wall of the pipe body is in a corrugated shape with the star-shaped outline, a first connection end is arranged at the front end of the pipe body, a second connection end is arranged at the rear end of the pipe body, the first connection end and the second connection end are hollow, the hollow portion of the first connection end and the hollow portion of the second connection end are respectively communicated with the hollow portion of the pipe body, the cross section of the first connection end and the cross section of the second connection end are circular, and the corrugated pipe is made of rubber. Due to the facts that the cross section of the pipe wall of the pipe body is in the corrugated shape, and the pipe body is made of rubber, the pipe body can be stretched and compressed in the radial direction when the pipe body conducts reversed torsion, radial torsion is easily generated among the pipe body, a shaft and a sleeve, the shaft and the sleeve are connected with the pipe body, loads of a driving device are reduced, and the relatively-larger torsion angle of the shaft and the sleeve can be achieved under the situation that driving power can be small to the greatest extent.
Description
Technical field
The utility model relates to a kind of seal connector, relates in particular to a kind of bellows be used to reversing sealing.
Background technique
Present live axle, cover produce the device that reverses and only can use low-power equipment, the power of output is limited, the existing link that connects for axle, cover is the ripple struction of Pagoda-shaped, under the drive of axle, cover, turn-back can produced radially during work, and since the drag effect meeting of link so that the relative torsion of coupled axle, cover is subject to great restriction, thereby increased largely the load of drive unit.
The model utility content
For overcoming the defects of prior art, the purpose of this utility model is to provide a kind of bellows be used to reversing sealing, can produce in the radial direction turn-back relatively easily.
The technical solution adopted in the utility model is: a kind of bellows be used to reversing sealing, the body that comprises hollow, the shaft section of described body is trapezoidal or rectangle, the cross section of the tube wall of described body is the corrugated of star profile, the front end of described body is provided with the first connecting end, the rear end is provided with the second connecting end, described the first connecting end and the second connecting end all are hollow shape, the hollow space of the two all is communicated with the hollow space of described body, and the cross section of described the first connecting end and the second connecting end is all rounded.
All can be provided with the projection of one or several radially inner annulars on the inwall of described the first connecting end and the second connecting end, the projection of each described annular is positioned on the same circumference of inwall of described the first connecting end or the second connecting end.
The shaft section of described projection can be rounded, semicircle or rectangle.
Preferably, the material of described bellows be used to reversing sealing is rubber, and its wall thickness everywhere except the projection that described annular is set is even, and wall thickness is 1-3mm.
The shore hardness of described rubber or IRHD can be the 60-85 degree.
Described rubber can be nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorine rubber or 4 third fluorine rubber.
The inboard of described the first connecting end and/or the outside can be fixed with the metal frame of annular, and/or the inboard of described the second connecting end and/or the outside can be fixed with the metal frame of annular.
Can be provided with one or several annular protrusion/grooves on described metal frame and the first connecting end or the contacted sidewall of the second connecting end, each described annular protrusion/groove is positioned on the same circumference of sidewall of described metal frame, can be provided with on described the first connecting end or the second connecting end and the contacted sidewall of described metal frame and described annular protrusion/groove matches and quantity is identical annular groove/projection.
Can be provided with the through hole that supplies screw or pin to pass on the sidewall of described metal frame.
Described metal frame and the first connecting end or the second connecting end can pass through polymer adhesive.
The beneficial effects of the utility model: because the cross section of the tube wall of body of the present utility model is corrugated, and material is rubber, so that body can be stretched and compress when turn-back in the radial direction, thereby coupled axle, the easier generation of cover are radially reversed, reduce the load of drive unit, under the driving power condition of trying one's best little, realize the relatively large windup-degree of axle, cover.
The projection of the annular that arranges on the inwall of the first connecting end and the second connecting end, can with the axle that is connected with them respectively, the corresponding groove fit that puts, be convenient to assembling and sealing between the first connecting end and the second connecting end and axle, the cover, guarantee the isolation of the inside and outside medium of bellows.
The setting of metal frame can effectively prevent the damage of bellows in assembling and using process, also be convenient to being fixedly connected with of bellows and axle, cover, cooperating of groove/land on projections/grooves on the metal frame and the first connecting end or the second connecting end, effectively increased the opening and closing area of surface of contact, under the vulcanization of the bonding and rubber of tackiness agent, can guarantee better that the relative position between metal frame and the first connecting end or the second connecting end is fixed.Through hole on the metal frame matches with screw or pin, can the fixing metal skeleton and the relative position of axle or cover, thus guarantee that bellows does not produce angular displacement with axle, between overlapping.
Description of drawings
Fig. 1 is shaft section schematic representation of the present utility model;
Fig. 2 is the cross sectional representation of the tube wall of body of the present utility model;
Fig. 3 is a kind of embodiment's of the present utility model structural representation.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of bellows be used to reversing sealing, the body 1 that comprises hollow, the shaft section of described body is trapezoidal or rectangle, the cross section of the tube wall of described body is the corrugated of star profile, described star is multi-corner star-shape, the front end of described body is provided with the first connecting end 2, the rear end is provided with the second connecting end 3, usually described the first connecting end and the second connecting end can be processed into one with described body, described the first connecting end and the second connecting end all are hollow shape, the hollow space of the two (inner chamber) all is communicated with the hollow space (inner chamber) of described body, the cross section of described the first connecting end and the second connecting end is all rounded, and the size of the internal diameter of described the first connecting end and the second connecting end can be according to described bellows connected axle in use, the external diameter size of the connecting end of cover and designing.
Because generally, axle, can be processed with groove convenient for assembly on the connecting end of cover, for ease of described bellows and axle, assembling and the sealing of cover, all can be provided with the projection 4 of one or several radially inner annulars on the inwall of described the first connecting end and the second connecting end, the projection of each described annular is positioned on the same circumference of inwall of described the first connecting end or the second connecting end, the shaft section of described projection can be rounded, semicircle or rectangle, the concrete shape of the shaft section of the projection of described annular and the setting position Main Basis axle on the inwall of described the first connecting end and the second connecting end, the cover connecting end on groove location and decide.
Outwards refer to direction away from the axis of described body in the utility model, inwardly refer to the direction near the axis of described body.
Preferably, the material of described bellows be used to reversing sealing is rubber, and its wall thickness everywhere except the projection that described annular is set is even, and wall thickness is 1-3mm, such as 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.5mm or 3mm.
The shore hardness of described rubber or IRHD can be the 60-85 degree, and described rubber can be nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorine rubber or 4 third fluorine rubber.
The utility model can guarantee the isolation of the medium that it is inside and outside, the cross section of the tube wall of described body is corrugated, and material is rubber, so that described body can be stretched and compress when turn-back in the radial direction, thereby coupled axle, the easier generation of cover are radially reversed, reduce the load of drive unit, under the driving power condition of trying one's best little, realize the relatively large windup-degree of axle, cover.
In order to prevent the damage of described bellows in assembling and using process, also be convenient to being connected of described bellows and axle, cover, the inboard of described the first connecting end and/or the outside can be fixed with the metal frame 5 of annular, and/or the inboard of described the second connecting end and/or the outside can be fixed with the metal frame of annular.Can be in the preparation process of described bellows, described metal frame is put into the mould of described bellows, by the direct time processing moulding of the vulcanization of rubber.
Can be provided with one or several annular protrusion/grooves on described metal frame and the first connecting end or the contacted sidewall of the second connecting end, each described annular protrusion/groove is positioned on the same circumference of sidewall of described metal frame, can be provided with on described the first connecting end or the second connecting end and the contacted sidewall of described metal frame and described annular protrusion/groove matches and quantity is identical annular groove/projection, the setting of these projections and groove, increase the opening and closing area of surface of contact, helped relative position fixing of metal frame and the first connecting end or the second connecting end.
Can be provided with the through hole 6 that passes for screw or pin on the sidewall of described metal frame, described through hole matches with screw or pin, can the fixing metal skeleton and the relative position of axle or cover, thus guarantee described bellows and axle, do not produce angular displacement between overlapping.
Described metal frame and the first connecting end or the second connecting end can pass through polymer adhesive, namely can carry out the vulcanization of rubber after the surface of contact of described metal frame and the first connecting end or the second connecting end is smeared tackiness agent again.
The utility model in use, its first connecting end and the second connecting end respectively with axle, cover is fixedly connected with (with axle, cover inserts the hollow cavity of the first connecting end and the second connecting end, by projection and the axle on the inwall of the first connecting end and the second connecting end, after the groove fit assembling on the connecting end of cover, be fixed with screw or pin by the through hole on the metal frame and be connected), be full of different medium inside and outside the described bellows, inside and outside medium is without pressure reduction, axle, cover is driven to produce by drive unit and swings, the first connecting end and the second connecting end correspondingly produce relative torsion, windup-degree generally is not more than 20 degree, the utility model both can keep sealing in the course of the work, medium is not revealed inside and outside guaranteeing, can make axle again, overlap easier generation and reverse, reduce the drive unit load.
Claims (10)
1. bellows that is used for reversing sealing, the body that comprises hollow, the shaft section that it is characterized in that described body is trapezoidal or rectangle, the cross section of the tube wall of described body is the corrugated of star profile, the front end of described body is provided with the first connecting end, and the rear end is provided with the second connecting end, and described the first connecting end and the second connecting end all are hollow shape, the hollow space of the two all is communicated with the hollow space of described body, and the cross section of described the first connecting end and the second connecting end is all rounded.
2. the bellows be used to reversing sealing as claimed in claim 1, it is characterized in that being equipped with on the inwall of described the first connecting end and the second connecting end the projection of one or several radially inner annulars, the projection of each described annular is positioned on the same circumference of inwall of described the first connecting end or the second connecting end.
3. the bellows be used to reversing sealing as claimed in claim 2 is characterized in that the shaft section of described projection is rounded, semicircle or rectangle.
4. the bellows be used to reversing sealing as claimed in claim 3 is characterized in that its material is rubber, and its wall thickness everywhere except the projection that described annular is set is even, and wall thickness is 1-3mm.
5. the bellows be used to reversing sealing as claimed in claim 4 is characterized in that the shore hardness of described rubber or IRHD are the 60-85 degree.
6. the bellows be used to reversing sealing as claimed in claim 5 is characterized in that described rubber is nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorine rubber or 4 third fluorine rubber.
7. such as claim 1,2,3,4,5 or 6 described bellowss be used to reversing sealing, it is characterized in that the inboard of described the first connecting end and/or the outside are fixed with the metal frame of annular, and/or the inboard of described the second connecting end and/or the outside are fixed with the metal frame of annular.
8. the bellows be used to reversing sealing as claimed in claim 7, it is characterized in that described metal frame and the first connecting end or the contacted sidewall of the second connecting end are provided with one or several annular protrusion/grooves, each described annular protrusion/groove is positioned on the same circumference of sidewall of described metal frame, described the first connecting end or the second connecting end and annular groove/projection that the contacted sidewall of described metal frame is provided with described annular protrusion/groove matches and quantity is identical.
9. the bellows be used to reversing sealing as claimed in claim 8 is characterized in that the sidewall of described metal frame is provided with the through hole that supplies screw or pin to pass.
10. the bellows be used to reversing sealing as claimed in claim 9 is characterized in that described metal frame and the first connecting end or the second connecting end pass through polymer adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204206 CN203239706U (en) | 2013-04-22 | 2013-04-22 | Corrugated pipe for torsion sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204206 CN203239706U (en) | 2013-04-22 | 2013-04-22 | Corrugated pipe for torsion sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239706U true CN203239706U (en) | 2013-10-16 |
Family
ID=49317011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204206 Expired - Fee Related CN203239706U (en) | 2013-04-22 | 2013-04-22 | Corrugated pipe for torsion sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239706U (en) |
-
2013
- 2013-04-22 CN CN 201320204206 patent/CN203239706U/en not_active Expired - Fee Related
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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: 20131016 Termination date: 20190422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |