CN210941727U - Rubber ring structure for sealing vacuum booster shell - Google Patents
Rubber ring structure for sealing vacuum booster shell Download PDFInfo
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- CN210941727U CN210941727U CN201920885945.4U CN201920885945U CN210941727U CN 210941727 U CN210941727 U CN 210941727U CN 201920885945 U CN201920885945 U CN 201920885945U CN 210941727 U CN210941727 U CN 210941727U
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- rubber ring
- flange
- ring structure
- vacuum booster
- housing seal
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Abstract
The utility model relates to a rubber ring structure for sealing a vacuum booster shell, which comprises a rubber ring body (3) positioned on the right side of a booster shell (2); be equipped with piston (4) in rubber circle body (3), be equipped with involucra (1) on this piston, the inner circle and piston (4) of involucra (1) form sealedly, and involucra (1) outer lane and booster casing (2) form sealedly, form vacuum pressure cavity (A) between involucra (1) and booster casing (2), piston (4), rubber circle body (3). When the vacuum booster works, the piston (4) does reciprocating motion in the horizontal direction, the outer surface of the piston (4) is in contact with the first flange (310), the second flange (311) and the third flange (313) of the rubber ring body (3) to form sealing, the vacuum pressure chamber (A) keeps certain vacuum pressure, and the vacuum pressure chamber (A) is isolated from the atmosphere through the rubber ring body (3), so that high sealing performance and long service life are guaranteed.
Description
Technical Field
The utility model relates to a car vacuum booster braking system's vacuum booster particularly, relates to a rubber circle structure for vacuum booster shell seal.
Background
The vacuum booster is a vacuum boosting servo device, vacuum pressure provided by a vehicle or assisted is used as a power source, force of a driver treading a brake pedal is output in proportion through servo amplification of the vacuum boosting, the force is labor-saving when the driver treads a brake, driving comfort is improved, safety of vehicle braking is guaranteed, sealing reliability of the vacuum pressure is important during working, and the sealing reliability can be directly influenced by lasting lubricating performance of mutually moving surfaces.
In the prior art, a sealing structure commonly used for a sealing rubber ring of a shell of a booster is a sealing rubber ring with a metal framework, the sealing rubber ring is fixed by press fitting through equipment in interference fit with the shell through the metal framework, and the rubber ring is not provided with enough lubricating grease storage space. The sealing rubber ring has the advantages of complex production process, long component structure period, high cost, inconvenient assembly, short service life and the like.
For example, the utility model discloses a chinese utility model patent that bulletin number is CN 207449886U authorizes, and it discloses a vacuum booster casing, including procapsid and back casing, be equipped with fastening bolt on the procapsid, be equipped with dust cover installing port and support shell on the back casing, support shell and back casing integrated into one piece, be equipped with the bolt that is used for installing pedal structure on the support shell, the bolt is a plurality of, still be equipped with the reinforcing plate on the procapsid, fastening bolt locates on the reinforcing plate, still be equipped with the rubber circle between fastening bolt and the contact surface of procapsid, reinforcing plate. This casing has strengthened booster casing and hydraulic tank fastening bolt's joint strength, is showing the result of use that has promoted booster casing, has prolonged booster casing's life. However, the contact surfaces of the front shell, the reinforcing plate and the rubber ring in the shell are coated with sealant, the connection strength and the sealing performance of the rubber ring, the front shell and the reinforcing plate are enhanced through the adhesion of the sealant, the service life is short, and the rubber ring is inconvenient to replace after being worn.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defect existing in the prior art, the utility model aims to provide a rubber circle structure for vacuum booster shell seal improves whole leakproofness and life through the structure to the rubber circle.
In order to realize the above design purpose, the utility model discloses a scheme as follows:
a rubber ring structure for sealing a vacuum booster shell comprises a rubber ring body, wherein the rubber ring body is arranged on the right side of the booster shell; the inside of rubber circle body is equipped with the piston, is equipped with the involucra on this piston, and the inner circle and the piston of involucra form sealedly, and the outer lane and the booster casing of involucra form sealedly, form vacuum pressure chamber between involucra and booster casing, piston, the rubber circle body. When vacuum booster during operation, the piston makes reciprocating motion at the horizontal direction, and the piston surface forms sealedly with the contact of first flange, second flange and the third flange of rubber circle body, and vacuum pressure chamber keeps having certain vacuum pressure, makes vacuum pressure chamber and atmosphere isolation through the rubber circle body to guarantee that the leakproofness is high, longe-lived.
The utility model discloses a rubber circle structure for vacuum booster shell seal has compact structure, simple, with low costs, light in weight, and longe-lived, the installation of being convenient for is arranged advantages such as.
Preferably, the rubber ring body comprises an inner ring, an outer ring, an end surface and an outer groove surface.
In any of the above aspects, preferably, the inner ring of the rubber ring body is provided with a first annular groove, a first flange, a second flange, and a third flange.
In any of the above solutions it is preferred that the diameter size of the first, second and third flanges is such that third flange > second flange > first flange.
In any of the above aspects, preferably, the first annular groove is located between the first flange and the second flange; lubricating grease is stored in the first annular groove and used for prolonging the service life of the rubber ring.
In any of the above aspects, preferably, a second annular groove is provided between the second flange and the third flange.
In any of the above solutions, it is preferable that the second annular groove is provided with a plurality of ribs in a circumferential axial direction, and a plurality of grooves are formed between two adjacent ribs. In order to improve the supporting strength of the rubber ring, reinforcing ribs with different numbers are arranged on the circumferential axial direction of the second annular groove.
In any of the above embodiments, it is preferable that the second annular groove stores grease therein for improving the life of the rubber ring.
In any of the above schemes, preferably, the outer ring of the rubber ring body is provided with a fourth flange and a fifth flange which form a seal with the inner wall of the booster shell.
In any of the above solutions, preferably, a sixth flange is further provided on the outer ring of the rubber ring body.
In any of the above aspects, preferably, the outer groove surface is provided with a first groove and a second groove on both sides of the end surface and the sixth flange, respectively.
In any of the above aspects, preferably, the end of the booster housing is provided with an inwardly extending boss.
In any of the above aspects, it is preferable that the distance between the end face and the sixth flange is less than the thickness of the boss.
In any of the above schemes, preferably, a gap is left between the boss and the outer groove surface, so that the rubber ring body is subjected to only one-side deformation force in the radial direction.
In any of the above aspects, it is preferable that the booster housing is made of a metal material for stamping and drawing.
In any of the above aspects, the booster housing is preferably made of ST12 or SPHC material.
In any of the above schemes, preferably, the rubber ring body is made of a high polymer material.
In any of the above embodiments, the rubber ring body is preferably EPDM, SBR, or NBR.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a rubber ring structure for sealing a vacuum booster housing according to the present invention.
Fig. 2 is a schematic structural diagram of a booster shell in the preferred embodiment shown in fig. 1, according to the present invention, which is used for a rubber ring structure for sealing a vacuum booster shell.
Fig. 3 is a schematic structural diagram of a rubber ring body in the preferred embodiment shown in fig. 1, which is used for sealing the shell of the vacuum booster according to the present invention.
Fig. 4 is an enlarged view of the rubber ring structure for sealing the housing of the vacuum booster according to the present invention at ii in the preferred embodiment shown in fig. 3.
Fig. 5 is an enlarged view of the rubber ring structure for sealing the housing of the vacuum booster according to the present invention at i in the preferred embodiment shown in fig. 1.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. The following description will further describe the specific embodiments of the rubber ring structure for sealing the vacuum booster casing according to the present invention with reference to the attached drawings.
As shown in fig. 1-2, the rubber ring structure for sealing the vacuum booster shell according to the present invention has a schematic structure. The utility model discloses a rubber ring structure for sealing a vacuum booster shell, which comprises a rubber ring body 3 arranged on the right side of a booster shell 2; the inside of rubber circle body 3 is equipped with piston 4, is equipped with involucra 1 on this piston, and the inner circle of involucra 1 forms sealedly with piston 4, and the outer lane of involucra 1 forms sealedly with booster casing 2, form vacuum pressure chamber A between involucra 1 and booster casing 2, piston 4, the rubber circle body 3. When the vacuum booster works, the piston 4 reciprocates in the horizontal direction, the outer surface of the piston 4 is in contact with the first flange 310, the second flange 311 and the third flange 313 (shown in figure 4) of the rubber ring body 3 to form sealing, the vacuum pressure chamber A keeps certain vacuum pressure, and the vacuum pressure chamber A is isolated from the atmosphere through the rubber ring body 3, so that high sealing performance and long service life are ensured.
In the present embodiment, the booster housing 2 is made of a metal material for stamping and drawing.
In the present embodiment, the booster case 2 is made of ST12 or SPHC material.
As shown in fig. 3 and 4, the rubber ring body in the preferred embodiment shown in fig. 1 is a schematic structural diagram of a rubber ring structure for sealing a vacuum booster shell according to the present invention.
In the present embodiment, the rubber ring body 3 includes an inner ring, an outer ring, an end surface 306, and an outer groove surface 307.
In the present embodiment, the inner ring of the rubber ring body 3 is provided with a first annular groove 301, a first flange 310, a second flange 311, and a third flange 313.
In this embodiment, the diameters of the first, second, and third flanges 310, 311, 313 are related such that third flange 313 > second flange 311 > first flange 310.
In this embodiment, the first annular groove 301 is located between the first flange 310 and the second flange 311; lubricating grease is stored in the first annular groove 301, so that the service life of the rubber ring is prolonged.
In this embodiment, a second annular groove 303 is disposed between the second flange 311 and the third flange 313.
In this embodiment, the second annular groove 303 is provided with a plurality of ribs 302 (see fig. 3) on the circumferential axial side, and a plurality of grooves are formed between two adjacent ribs 302. In order to improve the supporting strength of the rubber ring, reinforcing ribs 302 are arranged in different numbers in the circumferential axial direction of the second annular groove 303.
In this embodiment, the second annular groove 303 stores grease therein for improving the life of the rubber ring.
In the present embodiment, the outer ring of the rubber ring body 3 is provided with a fourth flange 304, a fifth flange 305 and an inner wall 201 of the booster shell 2 to form a seal.
In this embodiment, a sixth flange 308 is further disposed on the outer ring of the rubber ring body 3.
In this embodiment, the outer groove surface 307 is provided with a first groove 309 and a second groove 314 on both sides with respect to the end surface 306 and the sixth flange 308, respectively.
In the present embodiment, the end of the booster housing 2 is provided with an inwardly extending boss 202, and the boss 202 has a thickness δ.
In this embodiment, the distance between the end face 306 and the sixth flange 308 is less than the thickness δ of the boss 202.
In this embodiment, the rubber ring body 3 is made of a polymer material.
In this embodiment, the rubber ring body 3 is made of EPDM, SBR, or NBR.
As shown in fig. 5, the enlarged view of the portion i in the preferred embodiment of the rubber ring structure for sealing the vacuum booster housing according to the present invention is shown in fig. 1.
In the present embodiment, the end of the booster housing 2 is provided with an inwardly extending boss 202.
In this embodiment, a gap b is left between the boss 202 and the outer groove surface 307, so that the rubber ring body 3 is subjected to only one-sided deformation force in the radial direction.
After the rubber ring body 3 and the booster shell 2 are installed, a certain clamping force is formed between the end face 306 of the rubber ring body 3 and the sixth flange 308 in the axial direction, and the rubber ring is prevented from generating axial movement.
The rubber ring structure for sealing the vacuum booster shell of the invention comprises any combination of the parts in the specification, and the rubber ring structure is not difficult to understand by a person skilled in the art. These combinations are not described in detail herein for the sake of brevity and clarity, but the scope of the invention, which is defined by any combination of parts or features disclosed herein, will become apparent after a review of this specification.
Claims (18)
1. A rubber ring structure for sealing a vacuum booster shell comprises a rubber ring body (3) which is arranged on the right side of the booster shell (2); the inside of rubber ring body (3) is equipped with piston (4), is equipped with involucra (1) on this piston, and the inner circle and piston (4) of involucra (1) form sealedly, and the outer lane and booster casing (2) of involucra (1) form sealedly, its characterized in that: a vacuum pressure chamber (A) is formed among the membrane (1), the booster shell (2), the piston (4) and the rubber ring body (3).
2. The rubber ring structure for a vacuum booster housing seal of claim 1, wherein: the rubber ring body (3) comprises an inner ring, an outer ring, an end surface (306) and an outer groove surface (307).
3. The rubber ring structure for a vacuum booster housing seal according to claim 2, wherein: the inner ring of the rubber ring body (3) is provided with a first annular groove (301), a first flange (310), a second flange (311) and a third flange (313).
4. A rubber ring structure for a vacuum booster housing seal according to claim 3, wherein: the diameter size of the first flange (310), the second flange (311) and the third flange (313) is related to third flange (313) > second flange (311) > first flange (310).
5. A rubber ring structure for a vacuum booster housing seal according to claim 3, wherein: the first annular groove (301) is located between the first flange (310) and the second flange (311); grease is stored in the first annular groove (301).
6. The rubber ring structure for vacuum booster housing seal according to claim 3 or 4, characterized in that: a second annular groove (303) is arranged between the second flange (311) and the third flange (313).
7. The rubber ring structure for a vacuum booster housing seal of claim 6, wherein: the circumferential and axial aspects of the second annular groove (303) are provided with a plurality of reinforcing ribs (302), and a plurality of grooves are formed between two adjacent reinforcing ribs (302).
8. The rubber ring structure for a vacuum booster housing seal of claim 6, wherein: grease is stored in the second annular groove (303).
9. The rubber ring structure for a vacuum booster housing seal according to claim 2, wherein: the outer ring of the rubber ring body (3) is provided with a fourth flange (304) and a fifth flange (305) which form sealing with the inner wall (201) of the booster shell (2).
10. The rubber ring structure for a vacuum booster housing seal according to claim 2, wherein: a sixth flange (308) is also arranged on the outer ring of the rubber ring body (3).
11. The rubber ring structure for a vacuum booster housing seal according to claim 2, wherein: the outer groove surface (307) is provided with a first groove (309) and a second groove (314) on both sides relative to the end surface (306) and the sixth flange (308), respectively.
12. The rubber ring structure for a vacuum booster housing seal of claim 1, wherein: the end of the booster shell (2) is provided with a boss (202) extending inwards.
13. A rubber ring structure for a vacuum booster housing seal according to claim 11, wherein: the distance between the end face (306) and the sixth flange (308) is less than the thickness of the boss (202).
14. A rubber ring structure for a vacuum booster housing seal according to claim 12, wherein: a gap is reserved between the boss (202) and the outer groove surface (307).
15. The rubber ring structure for a vacuum booster housing seal of claim 1, wherein: the booster shell (2) is made of metal materials used for stamping and stretching.
16. A rubber ring structure for a vacuum booster housing seal according to claim 15, wherein: the booster shell (2) is made of ST12 or SPHC material.
17. The rubber ring structure for a vacuum booster housing seal of claim 1, wherein: the rubber ring body (3) is made of high polymer materials.
18. The rubber ring structure for a vacuum booster housing seal of claim 17, wherein: the rubber ring body (3) is made of EPDM, SBR or NBR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885945.4U CN210941727U (en) | 2019-06-13 | 2019-06-13 | Rubber ring structure for sealing vacuum booster shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885945.4U CN210941727U (en) | 2019-06-13 | 2019-06-13 | Rubber ring structure for sealing vacuum booster shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210941727U true CN210941727U (en) | 2020-07-07 |
Family
ID=71381590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920885945.4U Active CN210941727U (en) | 2019-06-13 | 2019-06-13 | Rubber ring structure for sealing vacuum booster shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210941727U (en) |
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2019
- 2019-06-13 CN CN201920885945.4U patent/CN210941727U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220315 Address after: No. 456, Binhai 4th Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: WENZHOU RUILI KORMEE AUTOMOTIVE ELECTRONICS CO.,LTD. Address before: 325299 2666 Development Zone, Ruian Economic Development Zone, Wenzhou, Zhejiang Patentee before: RUILI GROUP RUIAN AUTO PARTS Co.,Ltd. |