CN202301949U - Novel back shell seal device for vacuum booster - Google Patents
Novel back shell seal device for vacuum booster Download PDFInfo
- Publication number
- CN202301949U CN202301949U CN2011204198047U CN201120419804U CN202301949U CN 202301949 U CN202301949 U CN 202301949U CN 2011204198047 U CN2011204198047 U CN 2011204198047U CN 201120419804 U CN201120419804 U CN 201120419804U CN 202301949 U CN202301949 U CN 202301949U
- Authority
- CN
- China
- Prior art keywords
- back shell
- seal ring
- rear case
- shell seal
- vacuum booster
- 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 - Lifetime
Links
Images
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to a novel back shell seal device for a vacuum booster and belongs to the field of automobile braking. The device is characterized in that a back shell seal ring is in interference fit with a back shell; the skeleton of the back shell seal ring is riveted on the back shell; the back shell seal ring and the back shell are integrated and sealed; a valve body is in interference fit with the back shell seal ring and forms reliable seal together with the valve body through an enclasping force which is generated by back shell seal ring rubber. The novel back shell seal device disclosed by the utility model has the advantages that structure is novel and simple; the back shell seal ring has no lock spring and the number of parts of the vacuum booster adopting the novel back shell seal device disclosed by the utility model is one less than that of the traditional vacuum booster, thereby improving braking feel, reducing seizure feel when the booster starts to brake and reducing cost; and seal effect is obvious, and performance is reliable.
Description
Technical field
The utility model belongs to the automobile brake field, refers in particular to automobile vacuum booster.
Background technique
Vacuum booster is the brake power assist unit in light, the car braking system, is the critical component in the brake system of car.Its working principle is the vacuum that is produced when utilizing petrol engine work; Or the vacuum that vacuum pump produced that DENG installed additional; When the driver steps on brake petal; Borrow the different thrust that pressure difference produced of two active chambers in the vacuum booster; Amplify brake pedal force by design proportion and promote brake master cylinder piston, the brake fluid in the compression brake master cylinder produces hydraulic pressure, and is delivered to the wheel break and makes brake shoe contact and then produce surface friction drag with hub for vehicle wheel to control vehicle deceleration or braking.The rear case seal arrangement is important component in the vacuum booster, and parts size precision is high, complex structure, difficult forming.The major function of rear case seal arrangement is to form booster normal pressure active chamber.And provide support and lubricate for valve body motion.
The rear case seal arrangement of conventional vacuum booster is to be moulded to close by steel skeleton and rubber to be integrally formed structure, and in the rubber outside one lock spring is housed.The rear case seal ring is through being integrally formed structure with the rear case riveted joint.The rear case seal ring through and the rear case internal diameter between interference fit and sealing, the radially coupling mechanism force that lock spring produces makes epipharynx footpath and the valve body interference fit and the sealing of seal ring, forms the back active chamber of booster, i.e. the transformation chamber.
Summary of the invention
The utility model provides a kind of vacuum booster with novel rear case seal arrangement, has the vacuum booster complex structure now to solve, difficult forming, and there is the problem of clamping stagnation sense the deboost phase.
The technological scheme of the utility model is: rear case seal ring and rear case interference fit; The skeleton of rear case seal ring is riveted on the rear case; Become one between rear case seal ring and the rear case and seal; Valve body and rear case seal ring interference fit, the power of holding tightly and the valve body that produce through the rear case rubber sealing ring form reliable sealing.
The advantage of the utility model is: novel structure is simple, and the rear case seal ring does not have lock spring, and the traditional vacuum booster reduces by a part; Improve brake feel, reduced booster and begun the clamping stagnation sense of deboost phase, reduced cost; Sealing effect is obvious, reliable performance.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is an A portion enlarged view among Fig. 1.
Embodiment
Rear case seal ring 2 and rear case 3 interference fit; The skeleton of rear case seal ring 2 is riveted on the rear case 3; Become one between rear case seal ring 2 and the rear case 3 and seal; Valve body 1 and rear case seal ring 2 interference fit, the power of holding tightly and the valve body 1 that produce through the rear case rubber sealing ring form reliable sealing.
Claims (1)
1. a vacuum booster is with novel rear case seal arrangement; It is characterized in that: rear case seal ring and rear case interference fit; The skeleton of rear case seal ring is riveted on the rear case; Become one between rear case seal ring and the rear case and seal, valve body and rear case seal ring interference fit, the power of holding tightly and valve body formation reliable sealing that produce through the rear case rubber sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204198047U CN202301949U (en) | 2011-10-30 | 2011-10-30 | Novel back shell seal device for vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204198047U CN202301949U (en) | 2011-10-30 | 2011-10-30 | Novel back shell seal device for vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301949U true CN202301949U (en) | 2012-07-04 |
Family
ID=46370847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204198047U Expired - Lifetime CN202301949U (en) | 2011-10-30 | 2011-10-30 | Novel back shell seal device for vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301949U (en) |
-
2011
- 2011-10-30 CN CN2011204198047U patent/CN202301949U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203078511U (en) | Automobile brake-by-wire system | |
| CN103010199B (en) | Brake-by-wire system of automobile | |
| CN104071142B (en) | A kind of electric motor car line control brake system | |
| CN202001531U (en) | Plunger-type brake master cylinder | |
| CN105270378A (en) | Vehicle brake assisting system | |
| CN201923121U (en) | Electronic vacuum booster device | |
| CN202811934U (en) | Novel brake master cylinder with stroke sensor | |
| CN202301949U (en) | Novel back shell seal device for vacuum booster | |
| CN104129379A (en) | Pedal travel simulator for automobile brake system | |
| CN201002601Y (en) | Penetration type double-diaphragm vacuum booster assembly | |
| CN201980220U (en) | Electronic control type vacuum booster with emergency braking function | |
| CN202764959U (en) | Novel vacuum single-direction valve device | |
| CN202301932U (en) | Novel rear shell sealing structure of vacuum booster | |
| CN208646833U (en) | A kind of liner plate positions double diaphragms and runs through vacuum booster | |
| CN203796798U (en) | Automobile clutch power assisting device | |
| CN102050100A (en) | Electronic vacuum booster device | |
| CN206067731U (en) | A kind of vacuum booster with valve body protecting seat | |
| CN206812985U (en) | A kind of row parking braking combined supercharging device | |
| CN203211293U (en) | Vacuum booster with hydraulic circuit push rod system | |
| CN203996198U (en) | A kind of vacuum booster with radial air inlet structure | |
| CN203601254U (en) | Automobile vacuum booster | |
| CN202264762U (en) | Fast air intake structure for vacuum booster | |
| CN201015992Y (en) | Diaphragm radial packing vehicle vacuum booster | |
| CN202952967U (en) | Self-noise reduction type rear shell body sealing ring device | |
| CN204077641U (en) | A kind of brake system of car pedal stroke simulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |