CN201137773Y - Automobile braking master cylinder fuel inlet joint seal device - Google Patents
Automobile braking master cylinder fuel inlet joint seal device Download PDFInfo
- Publication number
- CN201137773Y CN201137773Y CNU2007201579002U CN200720157900U CN201137773Y CN 201137773 Y CN201137773 Y CN 201137773Y CN U2007201579002 U CNU2007201579002 U CN U2007201579002U CN 200720157900 U CN200720157900 U CN 200720157900U CN 201137773 Y CN201137773 Y CN 201137773Y
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- fuel inlet
- sealing
- inlet fitting
- braking master
- 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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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model discloses a sealing device of an automobile braking master cylinder oil inlet connector and the sealing device is installed on a joint of an oil inlet joint and a braking master cylinder main body. The sealing device comprises a sealing sleeve which is composed of elastic materials, wherein the sealing sleeve comprises a tubular main body, the tubular main body is provided with a peripheral surface which is matched with an installing hole of the braking master cylinder body in an interference fit mode, the tubular mainly is provided with an inner hole surface which is matched with the oil inlet connector in the interference fit mode, and the end portion of the tubular main body is provided with a flanging. When the oil inlet connector is fixed on the braking master cylinder main body through screw bolts, the sealing sleeve enables the oil inlet connector and the braking master cylinder main body to form circumferential and end surface dual sealing, and the sealing reliability is increased. The success rate of primary sealing can reach 99.5% and the sealing device does not affect the reuse of various fitting parts according to experiments.
Description
Technical field
The utility model relates to the automobile braking master cylinder technical field, relates in particular to the seal arrangement of fuel inlet fitting.
Background technique
Brake master cylinder is the main brake member in the hydraulic braking system for automobile, by the brake fluid of its output through oil outlet by the wheel cylinder on the braking line input brake disc, thereby realize the purpose of braking automobile braking.
Copper washer is adopted in the sealing of its fuel inlet fitting of common brake master cylinder and brake master cylinder body, and copper washer seals after compressing distortion, and fuel inlet fitting inner chamber and brake master cylinder body filler opening are sealed into unified space.
Employing copper washer sealing, the once sealing success rate is lower, and copper washer compresses the back distortion, and the copper washer after disassembling can not utilize once more, causes the waste of resource.
Summary of the invention
Technical problem to be solved in the utility model is: the seal arrangement of automobile braking master cylinder fuel inlet fitting, sealing device good sealing effect can also be reused.
For solving the problems of the technologies described above, the technical solution of the utility model is: the seal arrangement of automobile braking master cylinder fuel inlet fitting, the sealing device is installed on the junction point of fuel inlet fitting and brake master cylinder body, comprise the stuffing box gland that constitutes by elastic material, described stuffing box gland comprises a cylindrical body, described cylindrical body has the outer circumferential face with the mounting hole interference fit of brake master cylinder body, described cylindrical body has the inner hole surface with the fuel inlet fitting interference fit, and the end of described cylindrical body is provided with flange.
As a kind of optimal way, the seal face of described fuel inlet fitting is provided with a counterbore that is used to hold described flange, and the degree of depth of described counterbore is less than the thickness of described flange.
After having adopted technique scheme, the beneficial effects of the utility model are: because the sealing device comprises the stuffing box gland that is made of elastic material, described stuffing box gland comprises a cylindrical body, described cylindrical body has the outer circumferential face with the mounting hole interference fit of brake master cylinder body, described cylindrical body has the inner hole surface with the fuel inlet fitting interference fit, the end of described cylindrical body is provided with flange, so when fuel inlet fitting by bolton on the brake master cylinder body time, the sealing cover has formed circumferentially and end face two resealings fuel inlet fitting and brake master cylinder body, has improved the reliability of sealing.Through test, the once sealing success rate can reach 99.5%, and does not influence the utilization once more of disassembling each part of back.
Because the seal face of described fuel inlet fitting is provided with a counterbore that is used to hold described flange, therefore the degree of depth of described counterbore, when the seal face of fuel inlet fitting and brake master cylinder body is fitted, can guarantee the magnitude of interference of flange less than the thickness of described flange.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model embodiment's a structure sectional view, among the figure:
Embodiment
As shown in drawings, the seal arrangement of automobile braking master cylinder fuel inlet fitting, sealing device are installed on the junction point of fuel inlet fitting 04 and brake master cylinder body 02, comprise the stuffing box gland 03 that is made of elastic material, described elastic material preferred rubber material.Described stuffing box gland 03 comprises a cylindrical body, described cylindrical body has the outer circumferential face with the mounting hole interference fit of described brake master cylinder body 02, described cylindrical body has the inner hole surface with described fuel inlet fitting 04 interference fit, and the end of described cylindrical body is provided with flange.The seal face of described fuel inlet fitting 04 is provided with a counterbore that is used to hold described flange, and the degree of depth of described counterbore is less than the thickness of described flange, and for example, when dark 1 millimeter of counterbore, the thickness of flange is 2 millimeters.
When fuel inlet fitting 04 was anchored on the brake master cylinder body 02 by bolt 07, sealing cover 03 had formed circumferentially and end face two resealings fuel inlet fitting 04 and brake master cylinder body 07, has improved the reliability of sealing.Through test, the once sealing success rate can reach 99.5%, and does not influence the utilization once more of disassembling each part of back.
The automobile braking master cylinder working principle is as follows:
In initial state (output of brakeless liquid), the filler opening 05 on the fuel inlet fitting 04 links to each other with liquid storage tank, and oil outlet 01 links to each other with wheel cylinder on the brake disc by braking line, and fuel inlet fitting 04 generally is made of nylon material.
Piston 08 is not stressed to be pushed, the output of oil outlet 01 brakeless liquid.When input thrust F promotes piston 08 reach, the wheel cylinder of brake master cylinder on just from oil outlet 01 output brake fluid to brake disc, in this process, brake fluid enters brake master cylinder body filler opening 06 from liquid storage tank by the fuel inlet fitting filler opening 05 on the fuel inlet fitting 04, to compensate the brake fluid that brake master cylinder is exported from oil outlet 01.
After finishing braking, cancel thrust F, piston 08 return is under the effect of break, brake fluid in the wheel cylinder is back to brake master cylinder through oil outlet 01, is back to through brake master cylinder body filler opening 06, nylon fuel inlet fitting filler opening 05 and sets up new balance in the liquid storage tank.
Claims (2)
1. the seal arrangement of automobile braking master cylinder fuel inlet fitting, sealing device are installed on the junction point of fuel inlet fitting (04) and brake master cylinder body (02), it is characterized in that: comprise
The stuffing box gland (03) that constitutes by elastic material, described stuffing box gland (03) comprises a cylindrical body, described cylindrical body has the outer circumferential face with the mounting hole interference fit of described brake master cylinder body (02), described cylindrical body has the inner hole surface with described fuel inlet fitting (04) interference fit, and the end of described cylindrical body is provided with flange.
2. the seal arrangement of automobile braking master cylinder fuel inlet fitting as claimed in claim 1, it is characterized in that: the seal face of described fuel inlet fitting (04) is provided with a counterbore that is used to hold described flange, and the degree of depth of described counterbore is less than the thickness of described flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201579002U CN201137773Y (en) | 2007-12-05 | 2007-12-05 | Automobile braking master cylinder fuel inlet joint seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201579002U CN201137773Y (en) | 2007-12-05 | 2007-12-05 | Automobile braking master cylinder fuel inlet joint seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137773Y true CN201137773Y (en) | 2008-10-22 |
Family
ID=40038460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201579002U Expired - Fee Related CN201137773Y (en) | 2007-12-05 | 2007-12-05 | Automobile braking master cylinder fuel inlet joint seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137773Y (en) |
-
2007
- 2007-12-05 CN CNU2007201579002U patent/CN201137773Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |