CN203770629U - Dust cover with fastening retainer ring structure - Google Patents
Dust cover with fastening retainer ring structure Download PDFInfo
- Publication number
- CN203770629U CN203770629U CN201420192497.7U CN201420192497U CN203770629U CN 203770629 U CN203770629 U CN 203770629U CN 201420192497 U CN201420192497 U CN 201420192497U CN 203770629 U CN203770629 U CN 203770629U
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- China
- Prior art keywords
- dust
- cover body
- ring structure
- cover
- stereotyped
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Abstract
The utility model relates to the technical field of dust covers in sealing components, in particular to a dust cover with a fastening retainer ring structure. The dust cover comprises a cover body (3) and a flat plate (1), wherein the cover body (3) is fixedly connected with the flat plate (1) through steel wire springs (2); a clamping groove (5) is formed in the end part of the cover body (3); grooves (4) are formed in both sides of the clamping groove (5); the steel wire springs (2) are arranged in the grooves (4) in order to firmly connect the cover body (3) with the flat plate (1). By using the dust cover, connecting tightness of the dust cover is realized, and the influences of external impurities, dust and mud on the internal cleanliness of a product assembly are avoided, so that the service life of the product assembly is long, the performance is excellent, and the quality is reliable.
Description
Technical field
The utility model relates to the technical field of dust-proof cover in sealed member, relates in particular to a kind of dust-proof cover with fastening back-up ring structure.
Background technique
Various modulating valve of the prior art, clutch, oil hydraulic pump, motor etc. are equipped with dust-proof cover; and these dust-proof cover are all by bolt or directly take the mode snapping in to be fixed; assembling is also insecure; therefore the phenomenon that dust-proof cover can come off in handling process; and then affect working efficiency, and often can there is the phenomenon of neglected loading.
For example notice of authorization number is the Chinese model utility of CN202402760U, it discloses a kind of dustproof gas electromagnetic valve, comprise valve body support, skeleton, static iron core, moving iron core, the first sleeve and coil, in described skeleton lower end, be packaged with sealing plate, the described moving bottom unshakable in one's determination that connects sealing plate is provided with the gas check while resetting for solenoid valve, pipeline being sealed, at described sealing plate, with between described gas check, a dust guard is set, this dust guard comprises a flexible dustproof cover, described flexible dustproof cover is run through in described moving iron core bottom, described moving iron core bottom is run through described flexible dustproof cover top and is closely cooperated with it, at described flexible dustproof cover periphery, be provided with cover edge, described cover edge is pressed on described sealing plate by spring.Flexible dustproof cover is not polluted movable iron core of electromagnetic valve and the first sleeve by fine dust, improved the reliability of electromagnetic valve work.But the flexible dustproof cover in this application is to compress by spring, and spring easily lost efficacy, dismounting inconvenience, and easily flexible dustproof cover is damaged.
For example the notice of authorization number of the applicant's application is the Chinese utility model patent of CN203477127U again, it discloses a kind of automotive friction formula clutch hydraulic pressure operating mechanism, the automatically controlled clutch slave cylinder that can assisted vacuum oiling of its Oil pump electrical machinery and power steering oil pump integral machine direct connection interpolation type insulated type, on its pump housing, have liquid entering hole, active chamber and bleed screw hole, brake fluid enters in active chamber and promotes piston along the hole axial motion of cylindrical cylinder through inlet opening from liquid entering hole, and then promote push rod and make disengaging yoke action, realize clutch separation.The outside of active chamber is provided with dust-proof cover and avoids extraneous foreign material to enter into the work of the whole clutch of impact in active chamber.Dust-proof cover is stuck in the groove at pump housing edge, the phenomenon that can come off in handling process.
Model utility content
The purpose of this utility model is to provide a kind of dust-proof cover with fastening back-up ring structure, in order to realize the connection tightness of dust-proof cover, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree, thereby made that product assembly working life is higher, performance is more superior, quality is more reliable.
In order to realize above-mentioned purpose of design, the scheme that the utility model adopts is as follows:
A kind of dust-proof cover with fastening back-up ring structure, comprise cover body and flat board, described cover body links together by wire spring with dull and stereotyped, this dust-proof cover has been realized the connection tightness of dust-proof cover, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree, thereby made that product assembly working life is higher, performance is more superior, quality is more reliable.
Preferably, the end of described cover body has draw-in groove.
In above-mentioned arbitrary scheme, preferably, described cover body is stuck in dull and stereotyped edge by draw-in groove.Because cover body is to make the external diameter of cover body diminish in flexible housing assembly process under the effect by external force, then the edge of cover body is filled in to flat board upper, thereby cover body and flat board are linked together, and strengthened the sealing between cover body and flat board.
In above-mentioned arbitrary scheme, preferably, the width of described draw-in groove is less than or equal to dull and stereotyped thickness.Because cover body is to make the external diameter of cover body diminish in flexible housing assembly process under the effect by external force, then the edge of cover body is filled in to flat board upper, thereby cover body and flat board are linked together.
In above-mentioned arbitrary scheme, preferably, the both sides of described draw-in groove have circular groove, and wire spring is placed in this circular groove.In the both sides of draw-in groove, have circular groove for place wire spring realized cover body with dull and stereotyped radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree; In addition, utilize the elastic anchorage force of wire spring, eliminated the resiliently deformable of cover body, stablized the fastening performance of linkage structure, solved cover body dilatation while working because of product assembly and caused the potential risk coming off.
In above-mentioned arbitrary scheme, preferably, described cover body is flexible housing.Because cover body is to make the external diameter of cover body diminish in flexible housing assembly process under the effect by external force, then the edge of cover body is filled on flat board, thereby cover body and flat board are linked together, and realized cover body with dull and stereotyped radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree.
In above-mentioned arbitrary scheme, preferably, the external diameter of described cover body end is greater than dull and stereotyped internal diameter.Because cover body is to make the external diameter of cover body diminish in flexible housing assembly process under the effect by external force, then the edge of cover body is filled on flat board, thereby cover body and flat board are linked together, and realized cover body with dull and stereotyped radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree.
In above-mentioned arbitrary scheme, preferably, the both sides that described flat board coordinates with draw-in groove have groove.
In above-mentioned arbitrary scheme, preferably, the inner side of described flat board is processed with step.In dull and stereotyped inner side, be designed with step, further limit the position of draw-in groove, thereby strengthened the sealing between cover body and flat board.
In above-mentioned arbitrary scheme, preferably, described flat board is foundry goods or press forging.Dull and stereotyped material can continue selection, such as foundry goods, press forging, rigid plastics, pottery etc. according to the actual needs.
Dust-proof cover installation process with fastening back-up ring structure in the utility model is: first wire spring is inserted in the draw-in groove of cover body, because cover body is elastomer, next by external force, the external diameter of cover body end being diminished is stuck in draw-in groove on flat board, under the effect of wire spring, realized cover body with dull and stereotyped radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree; In addition, utilize the elastic anchorage force of wire spring, eliminated the resiliently deformable of cover body, stablized the fastening performance of linkage structure, solved cover body dilatation while working because of product assembly and caused the potential risk coming off.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of a preferred embodiment of the dust-proof cover with fastening back-up ring structure of the present utility model;
Fig. 2 is according to the structural representation of the another preferred embodiment of the dust-proof cover with fastening back-up ring structure of the present utility model;
Fig. 3 is according to the partial enlarged drawing at label I place in the preferred embodiment shown in Fig. 2 of the dust-proof cover with fastening back-up ring structure of the present utility model.
Number in the figure explanation:
Flat board 1, wire spring 2, cover body 3, groove 4, draw-in groove 5.
Embodiment
In order to understand better according to the dust-proof cover with fastening back-up ring structure of the present utility model, below in conjunction with accompanying drawing, describe according to the specific embodiment of the dust-proof cover with fastening back-up ring structure of the present utility model.
Embodiment one:
Shown in figure 1, the structural representation of the dust-proof cover with fastening back-up ring structure of the present utility model.A kind of dust-proof cover with fastening back-up ring structure, comprise cover body 3 and dull and stereotyped 1, described cover body 3 links together by wire spring 2 with dull and stereotyped 1, this dust-proof cover has been realized the connection tightness of dust-proof cover, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree, thereby made that product assembly working life is higher, performance is more superior, reliable in quality.
In the present embodiment, the end of described cover body 3 has draw-in groove 5.
In the present embodiment, described cover body 3 is stuck in dull and stereotyped 1 edge by draw-in groove 5.Because cover body 3 is for diminishing the external diameter of cover body 3 under the effect by external force in flexible housing assembly process, then the edge of cover body 3 is filled on dull and stereotyped 1, thereby cover body 3 is linked together with dull and stereotyped 1, and strengthened the sealing between cover body 3 and dull and stereotyped 1.
In the present embodiment, the width of described draw-in groove 5 is less than or equal to dull and stereotyped 1 thickness.Because cover body 3 is for diminishing the external diameter of cover body 3 under the effect by external force in flexible housing assembly process, then the edge of cover body 3 is filled on dull and stereotyped 1, thereby cover body 3 is linked together with dull and stereotyped 1.
In the present embodiment, the both sides of described draw-in groove 5 have circular groove, and wire spring 2 is placed in this circular groove.In the both sides of draw-in groove 5, have circular groove for place wire spring 2 realized cover body 3 with dull and stereotyped 1 radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree; In addition, utilize the elastic anchorage force of wire spring 2, eliminated the resiliently deformable of cover body 3, stablized the fastening performance of linkage structure, solved cover body 3 dilatations while working because of product assembly and caused the potential risk coming off.
In the present embodiment, described cover body 3 is flexible housing.Because cover body 3 is for diminishing the external diameter of cover body 3 under the effect by external force in flexible housing assembly process, then the edge of cover body 3 is filled on dull and stereotyped 1, thereby cover body 3 is linked together with dull and stereotyped 1, and realized cover body 3 with dull and stereotyped 1 radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree.
In the present embodiment, the internal diameter that the external diameter of described cover body 3 ends is greater than dull and stereotyped 1.Because cover body 3 is for diminishing the external diameter of cover body 3 under the effect by external force in flexible housing assembly process, then the edge of cover body 3 is filled on dull and stereotyped 1, thereby cover body 3 is linked together with dull and stereotyped 1, and realized cover body 3 with dull and stereotyped 1 radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree.
In the present embodiment, described dull and stereotyped 1 inner side is processed with step.Inner side dull and stereotyped 1 is designed with step, further limits the position of draw-in groove 5, thereby has strengthened the sealing between cover body 3 and dull and stereotyped 1.
In the present embodiment, described dull and stereotyped 1 is foundry goods or press forging.Dull and stereotyped 1 material can continue selection, such as foundry goods, press forging, rigid plastics, pottery etc. according to the actual needs.
Dust-proof cover installation process with fastening back-up ring structure in the utility model is: first wire spring 2 is inserted in the draw-in groove 5 of cover body 3, because cover body 3 is elastomer, next by external force, the external diameter of cover body 3 ends being diminished is stuck in draw-in groove 5 on dull and stereotyped 1, under the effect of wire spring 2, realized cover body 3 with dull and stereotyped 1 radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree; In addition, utilize the elastic anchorage force of wire spring 2, eliminated the resiliently deformable of cover body 3, stablized the fastening performance of linkage structure, solved cover body 3 dilatations while working because of product assembly and caused the potential risk coming off.
Embodiment two:
As shown in Figure 2, according in the second embodiment of the present utility model with the structural representation of the dust-proof cover of fastening back-up ring structure.A kind of dust-proof cover with fastening back-up ring structure, comprise cover body 3 and dull and stereotyped 1, described cover body 3 links together by wire spring 2 with dull and stereotyped 1, this dust-proof cover has been realized the connection tightness of dust-proof cover, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree, thereby made that product assembly working life is higher, performance is more superior, quality is more reliable.
As shown in Figure 3, in the present embodiment, described dull and stereotyped 1 both sides that coordinate with draw-in groove 5 have groove 4.In dull and stereotyped 1 both sides, have groove 4 and avoided wire spring 2 and dull and stereotyped 1 in assembly process directly contact increase friction between the two, and increased groove 4 afterwards wire spring 2 be originally the circular groove that is positioned at draw-in groove 5, can directly not contact with flat board 1; In addition, the both sides due to dull and stereotyped 1 increased by 4 operating times of groove of a specified duration rear wire spring 2 elastic force while diminishing wire spring 2 can move in dull and stereotyped 1 groove 4, thereby make the cover body 3 more fastening with being connected of flat board 1.
Dust-proof cover installation process with fastening back-up ring structure in the utility model is: first wire spring 2 is inserted in the draw-in groove 5 of cover body 3, because cover body 3 is elastomer, next by external force, the external diameter of cover body 3 ends being diminished is stuck in draw-in groove 5 on dull and stereotyped 1, under the effect of wire spring 2, realized cover body 3 with dull and stereotyped 1 radially with axial double seal, avoided introduced contaminants, dust, the impact of mud on product assembly cleaning inside degree; In addition, utilize the elastic anchorage force of wire spring 2, eliminated the resiliently deformable of cover body 3, stablized the fastening performance of linkage structure, solved cover body 3 dilatations while working because of product assembly and caused the potential risk coming off.
It will be apparent to those skilled in the art that the dust-proof cover with fastening back-up ring structure of the present utility model comprises the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, at this, these combinations not to be introduced one by one in detail, but seen after this specification, the scope of the present utility model that the combination in any of the each several part consisting of this specification forms is self-evident.
Claims (13)
1. with a dust-proof cover for fastening back-up ring structure, comprise cover body (3) and dull and stereotyped (1), it is characterized in that: described cover body (3) links together by wire spring (2) with dull and stereotyped (1).
2. the dust-proof cover with fastening back-up ring structure as claimed in claim 1, is characterized in that: the end of cover body (3) has draw-in groove (5).
3. the dust-proof cover with fastening back-up ring structure as claimed in claim 1 or 2, is characterized in that: cover body (3) is stuck in the edge of flat board (1) by draw-in groove (5).
4. the dust-proof cover with fastening back-up ring structure as claimed in claim 2, is characterized in that: the width of draw-in groove (5) is less than or equal to the thickness of flat board (1).
5. the dust-proof cover with fastening back-up ring structure as described in claim 2 or 4, is characterized in that: the both sides of draw-in groove (5) have circular groove, and wire spring (2) is placed in this circular groove.
6. the dust-proof cover with fastening back-up ring structure as claimed in claim 1 or 2, is characterized in that: cover body (3) is flexible housing.
7. the dust-proof cover with fastening back-up ring structure as claimed in claim 3, is characterized in that: described cover body (3) is flexible housing.
8. the dust-proof cover with fastening back-up ring structure as claimed in claim 1 or 2, is characterized in that: the external diameter of cover body (3) end is greater than the internal diameter of flat board (1).
9. the dust-proof cover with fastening back-up ring structure as claimed in claim 3, is characterized in that: the external diameter of cover body (3) end is greater than the internal diameter of flat board (1).
10. the dust-proof cover with fastening back-up ring structure as claimed in claim 3, is characterized in that: the both sides that dull and stereotyped (1) coordinates with draw-in groove (5) have groove (4).
11. dust-proof cover with fastening back-up ring structure as described in claim 1 or 10, is characterized in that: the inner side of dull and stereotyped (1) is processed with step.
12. dust-proof cover with fastening back-up ring structure as claimed in claim 3, is characterized in that: the inner side of dull and stereotyped (1) is processed with step.
13. dust-proof cover with fastening back-up ring structure as described in claim 1 or 10, is characterized in that: dull and stereotyped (1) is foundry goods or press forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192497.7U CN203770629U (en) | 2014-04-21 | 2014-04-21 | Dust cover with fastening retainer ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192497.7U CN203770629U (en) | 2014-04-21 | 2014-04-21 | Dust cover with fastening retainer ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770629U true CN203770629U (en) | 2014-08-13 |
Family
ID=51287820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192497.7U Expired - Fee Related CN203770629U (en) | 2014-04-21 | 2014-04-21 | Dust cover with fastening retainer ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017178013A1 (en) * | 2016-04-14 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Slave cylinder |
-
2014
- 2014-04-21 CN CN201420192497.7U patent/CN203770629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017178013A1 (en) * | 2016-04-14 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Slave cylinder |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190421 |