CN207406762U - Suitable for the composite seal of shield piston rod - Google Patents
Suitable for the composite seal of shield piston rod Download PDFInfo
- Publication number
- CN207406762U CN207406762U CN201721370579.6U CN201721370579U CN207406762U CN 207406762 U CN207406762 U CN 207406762U CN 201721370579 U CN201721370579 U CN 201721370579U CN 207406762 U CN207406762 U CN 207406762U
- Authority
- CN
- China
- Prior art keywords
- extension side
- piston rod
- seal
- sealing
- sealing extension
- 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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- Sealing Devices (AREA)
Abstract
The utility model is related to a kind of composite seals suitable for shield piston rod, include seal body, if dry seal extension side is distributed in seal body, sealing extension side is provided with lower along inclination angle, the lower angle along inclination angle is 40 to 80 °, the top on sealing extension side is provided with auxiliary corner, and the angle for aiding in corner is 30 to 40 °.Be equipped with as a result, it is several are mutually independent sealing extension side, gap that can effectively between fill pipe or aperture and seal body, lift-off seal effect.The top on sealing extension side is provided with auxiliary corner, can make and the top on sealing extension side is allowed preferably to be fitted in the pipeline for needing to seal or aperture.The sealing extension side of use is provided with lower along inclination angle, and order sealing extension side is sufficient filling with relevant space.Unitary construction is easy, easily fabricated and use.
Description
Technical field
The utility model is related to a kind of composite seal more particularly to a kind of compound seals suitable for shield piston rod
Part.
Background technology
The internal diameter of existing dust seal section has a corner angle, is suitable only for the occasion that working face is piston rod, works as chance
During to the situation that working face is hole, piston rod is effectively sealed without suitable sealing element.
In view of the above shortcomings, the designer, is actively subject to research and innovation, it is a kind of suitable for shield piston to found
The composite seal of bar makes it with more the utility value in industry.
Utility model content
In order to solve the above technical problems, the purpose of this utility model be to provide it is a kind of compound close suitable for shield piston rod
Sealing.
The composite seal suitable for shield piston rod of the utility model, includes seal body, wherein：It is described close
If dry seal extension side is distributed on sealing body, sealing extension side is provided with lower along inclination angle, the lower angle along inclination angle
It spends for 40 to 80 °, the top on the sealing extension side is provided with auxiliary corner, and the angle of the auxiliary corner is 30 to 40 °.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, if the dry seal extension side is extremely
It rare four, equidistantly distributes between each other.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, between the sealing extension side
At intervals of 15 to 18mm.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, between the sealing extension side
At intervals of 16.8mm.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, the angle of the auxiliary corner
For 32.5 °.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, the length of the auxiliary corner
For 33 to 35mm.
Further, the above-mentioned composite seal suitable for shield piston rod, wherein, the half of the seal body
Footpath is 12 to 14mm.
Yet further, the above-mentioned composite seal suitable for shield piston rod, wherein, the half of the seal body
Footpath is 13.5mm.
According to the above aspect of the present invention, the utility model at least has the following advantages：
1st, are mutually independent sealing extension side equipped with several, can effectively fill pipe or aperture and seal body it
Between gap, lift-off seal effect.
2nd, the top on sealing extension side is provided with auxiliary corner, can makes and the top on sealing extension side is allowed preferably to be fitted in
It needs in the pipeline sealed or aperture.
3rd, the sealing extension side used is provided with lower along inclination angle, and order sealing extension side is sufficient filling with relevant space.
4th, unitary construction is easy, easily fabricated and use.
Above description is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model
Art means, and being practiced according to the content of specification with the preferred embodiment of the utility model and coordinate attached drawing detailed below
It describes in detail bright as after.
Description of the drawings
Fig. 1 applies to the structure diagram of the composite seal of shield piston rod.
The meaning of each reference numeral is as follows in figure.
1 seal body 2 sealing extension side
Under 3 corner is aided in along inclination angle 4
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Such as the composite seal suitable for shield piston rod of Fig. 1, include seal body 1, unusual part
It is：In order to realize the sealing of stereoscopic and omnibearing, if dry seal extension side 2 is distributed in seal body 1.In this way, can be according to
It holds in the palm in the mutual cooperation in sealing extension side 2 and appropriate deformation, fills up gap, further lift-off seal effect.Meanwhile it is
Be convenient for being inserted into and completed along the space for needing to seal sealing positioning, sealing extension side 2 be provided with it is lower along inclination angle 3,
The lower angle along inclination angle 3 is 40 to 80 °, and sealing extension side 2 can so be made to be sufficient filling with relevant space.Also, in order to
The top on sealing extension side 2 equally can be preferably fitted in the pipeline for needing to seal or aperture, sealing extension side 2
Top is provided with auxiliary corner 4, and the angle of auxiliary corner 4 is 30 to 40 °.
From the point of view of one preferable embodiment of the utility model, if at least four, the dry seal extension side 2 of use, phase
It is equidistantly distributed between mutually.Specifically, seal between extension side 2 at intervals of 15 to 18mm.Meanwhile by repeatedly to having a competition
Issue after examination and approval it is existing, if between sealing extension side 2 at intervals of 16.8mm, possess preferable deformation space, can preferably fill gap,
Promote whole sealing effect.
From the point of view of further, in order to which the top on sealing extension side 2 is allowed also effectively to be bonded the internal structure in pipeline or aperture,
The angle of corner 4 is aided in use 32.5 °.Simultaneously, it is contemplated that the length of the different auxiliary corners 4 of caliber is 33 to 35mm.Therewith
Corresponding to be, the radius of common seal body 1 is 12 to 14mm.Also, match the pipeline used or hole with reference to common
From the point of view of the parameter of footpath, the radius of seal body 1 is 13.5mm, can play preferable effect.
From the point of view of actual implementation, perhaps maximum pressure that the utility model can be is 1MPa, and common operating pressure is
0.5MPa, maximum presenteeism temperature are less than 80 degrees Celsius.In view of the facility of manufacture, meet necessary leakproofness, use
Material be polyurethane.
It can be seen that by above-mentioned character express and with reference to attached drawing using after the utility model, gather around and have the following advantages：
1st, are mutually independent sealing extension side equipped with several, can effectively fill pipe or aperture and seal body it
Between gap, lift-off seal effect.
2nd, the top on sealing extension side is provided with auxiliary corner, can makes and the top on sealing extension side is allowed preferably to be fitted in
It needs in the pipeline sealed or aperture.
3rd, the sealing extension side used is provided with lower along inclination angle, and order sealing extension side is sufficient filling with relevant space.
4th, unitary construction is easy, easily fabricated and use.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out several improvement and modification, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
1. suitable for the composite seal of shield piston rod, include seal body (1), it is characterised in that：The sealing element
Body (1) if on be distributed with dry seal extension side (2), sealing extension side (2) is provided with lower along inclination angle (3), and the lower edge is inclined
The angle at oblique angle (3) is 40 to 80 °, and the top of sealing extension side (2) is provided with auxiliary corner (4), the auxiliary corner
(4) angle is 30 to 40 °.
2. the composite seal according to claim 1 suitable for shield piston rod, it is characterised in that：If the dry seal
At least four, extension side (2), equidistantly distributes between each other.
3. the composite seal according to claim 2 suitable for shield piston rod, it is characterised in that：The sealing is extended
Between side (2) at intervals of 15 to 18mm.
4. the composite seal according to claim 3 suitable for shield piston rod, it is characterised in that：The sealing is extended
Between side (2) at intervals of 16.8mm.
5. the composite seal according to claim 1 suitable for shield piston rod, it is characterised in that：The auxiliary corner
(4) angle is 32.5 °.
6. the composite seal according to claim 1 suitable for shield piston rod, it is characterised in that：The auxiliary corner
(4) length is 33 to 35mm.
7. the composite seal according to claim 1 suitable for shield piston rod, it is characterised in that：The sealing element sheet
The radius of body (1) is 12 to 14mm.
8. the composite seal according to claim 7 suitable for shield piston rod, it is characterised in that：The sealing element sheet
The radius of body (1) is 13.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370579.6U CN207406762U (en) | 2017-10-23 | 2017-10-23 | Suitable for the composite seal of shield piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370579.6U CN207406762U (en) | 2017-10-23 | 2017-10-23 | Suitable for the composite seal of shield piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406762U true CN207406762U (en) | 2018-05-25 |
Family
ID=62321023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721370579.6U Expired - Fee Related CN207406762U (en) | 2017-10-23 | 2017-10-23 | Suitable for the composite seal of shield piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406762U (en) |
-
2017
- 2017-10-23 CN CN201721370579.6U patent/CN207406762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |