CN206278082U - One kind compensation hole and center valve type brake main cylinder oral area sealing structure - Google Patents
One kind compensation hole and center valve type brake main cylinder oral area sealing structure Download PDFInfo
- Publication number
- CN206278082U CN206278082U CN201621186078.8U CN201621186078U CN206278082U CN 206278082 U CN206278082 U CN 206278082U CN 201621186078 U CN201621186078 U CN 201621186078U CN 206278082 U CN206278082 U CN 206278082U
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- Prior art keywords
- contact position
- piston
- master cylinder
- cylinder body
- oral area
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- 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.)
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- Sealing With Elastic Sealing Lips (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model is related to a kind of compensation hole and center valve type brake main cylinder oral area sealing structure, belongs to brake system of car technical field.The inner end of first piston is slidably connected by the first contact position with the second contact position and Master cylinder body, Master cylinder body fuel feed hole is located between the first contact position and the second contact position, there is closure gasket groove on the Master cylinder body that the second contact position with first piston is slidably connected, the outer lip of secondary leather cup is tightly connected with closure gasket groove, interior lip is connected with the second contact position outside diameter seal of first piston.Advantage is novel structure, and amount of parts is few, reduces the probability that failure mode occurs, and the performance of product is greatly promoted；First piston is contacted by two with Master cylinder body, the guiding distance of first piston in motion, makes product exercise performance more stable, the sealing characteristics of further Optimization Compensation hole and center valve type brake main cylinder oral area, product sealing efficiency is effectively improved, product weight is alleviated.
Description
Technical field
The utility model belongs to brake system of car technical field, is that a kind of braking to existing compensation hole and center valve type is led
The improvement of cylinder oral area sealing structure.
Background technology
The sealing parts in the compensation hole and centre valve master cylinder oral area that are currently used for automobile brake have：Butterfly reed,
Back-up ring, O-ring seal, secondary leather cup, spacing ring and check ring, these sealing parts form mouth with Master cylinder body and first piston
Part sealing structure, because the parts for sealing are more, once damaging occur in one of parts, then and brake fluid will be from system
Dynamic master cylinder flows to booster, causes brake fluid to be lost in, brake failure, serious threat to life safety；And first piston and master cylinder
The contact position of body is shorter and be one, makes guiding apart from short, causes the exercise performance of product unstable, so as to influence sealing
Energy.
The content of the invention
The utility model provides a kind of compensation hole and center valve type brake main cylinder oral area sealing structure, to solve because of sealing
Parts are more, fragile, and the contact position of first piston and Master cylinder body is shorter and be one, makes guiding apart from short, causes
The exercise performance of product is unstable, so as to influence the problem of sealing property.
The technical solution adopted in the utility model is：The inner end of first piston by the first contact position and the second contact position with
Master cylinder body is slidably connected, and Master cylinder body fuel feed hole is located between the first contact position and the second contact position, in second with first piston
Have closure gasket groove on the Master cylinder body that contact position is slidably connected, outer lip and the closure gasket groove of secondary leather cup are tightly connected, interior lip with
Second contact position outside diameter seal connection of first piston.
The utility model has the advantages that structure is novel, by changing the structure of Master cylinder body and first piston, with a rubber
Leather cup replaces the butterfly reed of original structure, back-up ring, O-ring seal, secondary leather cup, spacing ring and check ring these parts, due to
Amount of parts is few, reduces the probability that failure mode occurs, and the performance of product is greatly promoted；First piston by two with
Master cylinder body is contacted, and the guiding distance of first piston in motion makes product exercise performance more stable, further Optimization Compensation hole and
The sealing characteristics of center valve type brake main cylinder oral area, effectively improve product sealing efficiency, alleviate product weight.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
The inner end of first piston 3 is slidably connected by the first contact position 301 with the second contact position 302 and Master cylinder body 1, master cylinder
Body fuel feed hole 101 is located between the first contact position 301 and the second contact position 302, in the second contact position 302 with first piston 3
Have closure gasket groove 102 on the Master cylinder body being slidably connected, outer lip and the closure gasket groove 102 of secondary leather cup 2 are tightly connected, interior lip with
The outside diameter seal connection of second contact position 302 of first piston 3.
Claims (1)
- It is 1. a kind of to compensate hole and center valve type brake main cylinder oral area sealing structure, it is characterised in that：The inner end of first piston passes through First contact position is slidably connected with the second contact position and Master cylinder body, and Master cylinder body fuel feed hole is located at the first contact position and the second contact position Between, have closure gasket groove on the Master cylinder body that the second contact position with first piston is slidably connected, the outer lip of secondary leather cup with it is close Seal ring groove is tightly connected, interior lip is connected with the second contact position outside diameter seal of first piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186078.8U CN206278082U (en) | 2016-11-04 | 2016-11-04 | One kind compensation hole and center valve type brake main cylinder oral area sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186078.8U CN206278082U (en) | 2016-11-04 | 2016-11-04 | One kind compensation hole and center valve type brake main cylinder oral area sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206278082U true CN206278082U (en) | 2017-06-27 |
Family
ID=59082342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186078.8U Active CN206278082U (en) | 2016-11-04 | 2016-11-04 | One kind compensation hole and center valve type brake main cylinder oral area sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206278082U (en) |
-
2016
- 2016-11-04 CN CN201621186078.8U patent/CN206278082U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |