CN206067730U - The center valve type brake main cylinder of valve hole part integration - Google Patents
The center valve type brake main cylinder of valve hole part integration Download PDFInfo
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- CN206067730U CN206067730U CN201620938672.1U CN201620938672U CN206067730U CN 206067730 U CN206067730 U CN 206067730U CN 201620938672 U CN201620938672 U CN 201620938672U CN 206067730 U CN206067730 U CN 206067730U
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Abstract
This utility model is related to a kind of center valve type brake main cylinder of valve hole part integration, belongs to automobile production field.Primary cup radial seal in Master cylinder body and first piston part, with the primary cup in second piston part and secondary leather cup radial seal, first control pin is arranged in master cylinder body by adapter sleeve, back-up ring is mounted with the outside of dish-shaped reed, second secondary leather cup is arranged on the outside of back-up ring, Master cylinder body forms brake chamber two with second piston member forward end, is located in second piston part for sap cavity, has brake chamber one between Master cylinder body and first piston part.The utility model has the advantage of：Structure novelty is succinct, multiple functional, it is therefore prevented that center valve port closes a slow or foot brakeless phenomenon once in a while, realizes fast braking efficiency；Brake chamber can set up rapidly high hydraulic pressure output, and brake efficiency is good, further improves brakes safety；Brake reaction time is fast, reduces cost, alleviates weight.
Description
Technical field
This utility model belongs to automobile production field, refers in particular to a kind of center valve type braking master of brake system of car
Cylinder.
Background technology
The Traditional center formula brake master cylinder assy parts for being currently used for automobile brake are：Master cylinder body, including：First
Piston, first piston spring, spring retainer seat, spring retainer bar, the first spring base, small washer, center valve element, valve part,
Center valve spring, primary cup；Second piston part, including：Second piston, second piston spring, second spring seat, center valve element,
Valve part, center valve spring, primary cup, the second secondary leather cup；Secondary leather cup, spacing ring, back-up ring, check ring, dish-shaped reed, first
The parts such as control pin, the second control pin are constituted, and piston crown bottom hole is annular groove, and piston crown hole is stepped hole；Center
Valve element is steel class, and sealing surface is planar end surface；Valve part is that steel class is that skeleton, both sides and cylindrical seal band are rubber
Class, is that valve part end face seal annulus presses tight sealing engagement with piston crown bottom hole annular groove, next to that centre valve first
Core planar end surface, is built with valve part end face sealing ring band compression fit closing center valve port by center valve spring spring-force driven dual
Vertical hydraulic pressure output.The brake pedal force amplified by Jing servomechanism installations during work is delivered to first piston part and is allowed to mobile, is pushed away
Dynamic second piston part, realizes braking function so as to set up hydraulic pressure in brake master cylinder assy.
But when the automobile of traveling is frequently braked, center valve element planar end surface is coordinated with the sealing of valve part end face seal annulus
During closing center's valve port, due to being related to during sealing between part, coordinate contact surfac is excessive, and appearance is poorly sealed, and center valve port is closed slow
A slow or foot brakeless phenomenon once in a while, causes brake master cylinder assy idle stroke big, causes driver tired driving；While centre valve
Mouth is unable to quick closedown and sets up high pressure, causes brake efficiency to reduce, when running car is on crowded city and highway
The vehicle accident such as easily knock into the back, collide, the safety of serious threat to life property.
The content of the invention
This utility model provides a kind of center valve type brake main cylinder of valve hole part integration, to solve existing center type
Brake master cylinder assy idle stroke is big, the low problem of brake efficiency.
The technical solution of the utility model is：Primary cup radial seal in Master cylinder body and first piston part, with second
Primary cup and secondary leather cup radial seal in piston element, cover plate are arranged on the outside of the second control pin, and the second control pin is by connecting
Female connector is arranged in master cylinder body, and dish-shaped reed is arranged on the outside of the first control pin, and the first control pin is arranged on master by adapter sleeve
In cylinder body, back-up ring on the outside of dish-shaped reed, is mounted with, the second secondary leather cup is arranged on the outside of back-up ring, and spacing ring is arranged on the second secondary leather cup
Outside, O-ring seal are arranged on the outside of spacing ring, and check ring is arranged on the outside of spacing ring, and master cylinder sealing ring is arranged on master cylinder
External side, Master cylinder body form brake chamber two with second piston member forward end, and center valve port two is located at the valve in second piston part
At core components two, it is located in second piston part for sap cavity, between Master cylinder body and first piston part, has brake chamber one, centre valve
Mouth one is located at the valve hole part one in first piston part；
In described first piston part, spring retainer seat and the first spring base pass through spring retainer bar and small washer axial direction
Riveting, first piston spring are arranged between spring retainer seat and the first spring base, the first spring base endoporus and first piston head
Cylindrical interference fit, spring retainer rod rear end Mian Yu centers valve spring end face compression fit, center valve spring one and valve hole part one
The cylindrical interference fit of head, the step end face compression fit with valve hole part one, valve hole part one and first piston head bore bottom
Planar end surface compression fit, primary cup and the cylindrical interference fit of first piston head；
In described second piston part, the second secondary leather cup and the cylindrical interference fit of second piston step, second spring seat
Endoporus and the cylindrical interference fit of second piston head, second spring seat are cylindrical with second piston spring internal diameter interference fit, centre valve
Two one end of spring and the step end face compression fit of second spring seat compression fit, the other end and valve hole part two.
The utility model has the advantage of：Structure novelty is succinct, multiple functional, is suitable for different automobile types and master cylinder is wanted
Ask, with less center valve spring spring force, produce faster brake reaction time, can match with ABS and ESP, improve braking
Efficiency, blocking criteria design, can be applicable to all kinds center valve type brake main cylinder, while with good cost performance；It is anti-
Stop center valve port and closed a slow or foot brakeless phenomenon once in a while, realize fast braking efficiency；Brake chamber can be set up rapidly
High hydraulic pressure output, brake efficiency are good, further improve brakes safety；Brake reaction time is fast, reduces cost, mitigates
Weight.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model first piston part；
Fig. 3 is the structural representation of this utility model second piston part；
In figure, Master cylinder body 1, second piston part 2, cover plate 3, the second control pin 4, adapter sleeve 5, first piston part 6,
One control pin 7, back-up ring 8, spacing ring 9, check ring 10, the second secondary leather cup 11, O-ring seal 12, dish-shaped reed 13, master cylinder are close
Seal 14, brake chamber 2 15, center valve port 2 16, for sap cavity 17, brake chamber 1, center valve port 1, the second secondary leather cup
201st, second piston 202, second spring seat 203, second piston spring 204, center valve spring 2 205, valve hole part 2 206, bullet
Spring limit base 601, small washer 602, spring retainer bar 603, center valve spring 1, first piston spring 605, the first spring base
606th, primary cup 607, valve hole part 1, first piston 609.
Specific embodiment
Primary cup in primary cup radial seal in Master cylinder body 1 and first piston part 6, with second piston part 2 and
Secondary leather cup radial seal, cover plate 3 are arranged on the outside of the second control pin 4, and the second control pin 4 is arranged on Master cylinder body 1 by adapter sleeve 5
Interior, dish-shaped reed 13 is arranged on the outside of the first control pin 7, and the first control pin 7 is arranged in Master cylinder body 1 by adapter sleeve 5, dish
Back-up ring 8 is mounted with the outside of reed 13, the second secondary leather cup 11 is arranged on the outside of back-up ring 8, and spacing ring 9 is arranged on outside the second secondary leather cup 11
Side, O-ring seal 12 are arranged on the outside of spacing ring 9, and check ring 10 is arranged on the outside of spacing ring 9, and master cylinder sealing ring 14 is installed
On the outside of Master cylinder body 1, Master cylinder body 1 forms brake chamber 2 15 with 2 front end of second piston part, and center valve port 2 16 is lived positioned at second
At valve hole part 2 206 in plunger member 2, it is located in second piston part 2 for sap cavity 17, Master cylinder body 1 and first piston part 6
Between have a brake chamber 1, center valve port 1 is located at the valve hole part 1 in first piston part 6；
In described first piston part 6, spring retainer seat 601 and the first spring base 606 pass through spring retainer bar 603 and
Small washer 602 is axially riveted, and first piston spring 605 is arranged between spring retainer seat 601 and the first spring base 606, the first bullet
606 endoporus of spring abutment and the cylindrical interference fit of 609 head of first piston, 603 rear end face of spring retainer bar and one 604 end of center valve spring
Face pressure tight fit, center valve spring 1 and the cylindrical interference fit of one 608 head of valve hole part, the step with valve hole part 1
End face compression fit, valve hole part 1 and 609 head bore bottom planar end surface compression fit of first piston, primary cup 607 and first
The cylindrical interference fit of 609 head of piston；
In described second piston part 2, the second secondary leather cup 201 and the cylindrical interference fit of 202 step of second piston, second
203 endoporus of spring base and the cylindrical interference fit of 202 head of second piston, second spring seat 203 it is cylindrical with second piston spring 204 in
The platform of footpath interference fit, 2 205 one end of center valve spring and 203 compression fit of second spring seat, the other end and valve hole part 2 206
Rank end face compression fit.
Spring retainer seat and the first spring base pass through spring retainer bar and small washer is axially riveted, and first piston spring is assembled
It is fixed in the range of certain size, constitutes the first spring members.First spring base endoporus is matched somebody with somebody with the cylindrical interference of first piston head
Conjunction, working condition the first spring base hole baseplane and first piston head end compression fit；Spring retainer rod rear end face is with
Heart valve spring end face compression fit, rear portion is cylindrical and center valve spring internal diameter gap coordinates；Center valve spring one and valve hole part one
The cylindrical interference fit in portion, and step end face compression fit；Valve hole part one passes through one spring-force driven dual of center valve spring and first and lives
Head hole bottom planar end surface compression fit, forms the center valve port closed；Primary cup and the cylindrical interference fit of first piston head,
With step end face compression fit；Second secondary leather cup and the cylindrical interference fit of second piston step；Second spring seat endoporus and second
The cylindrical interference fit of piston crown, working condition second spring bore baseplane and second piston head end compression fit, with
Center valve spring end face compression fit；Second spring seat is cylindrical with second piston spring internal diameter interference fit.Master cylinder body and first is lived
Primary cup radial seal in plunger member, with primary cup, secondary leather cup radial seal in second piston part, forms respectively and supplies sap cavity
And brake chamber.In working order, the brake pedal force for being amplified by Jing servomechanism installations is delivered to first piston part and is allowed to mobile,
Second piston part is promoted, and braking function is realized so as to set up hydraulic pressure.
It is valve hole part seal band and piston crown bottom hole planar end surface during work, by center valve spring spring-force driven dual axle
Coordinate to sealing, when frequently braking, energy quick closedown center valve port, in brake master cylinder assy, brake chamber can be set up rapidly
High hydraulic function.Avoid when frequently braking, as feature contacts face excessively causes piston element poorly sealed, center valve port is closed
A slow or foot brakeless phenomenon once in a while is closed, brake master cylinder assy idle stroke is big, ultimately resulting in brakes efficiency reduces etc. existing
As.
Valve hole part head is standardized designs, is to meet different braking main-cylinder stroke requirement, and prismatic center valve element can
It is designed as the dimension series of different length requirement；It is straight hole that first and second piston crown coordinates aperture with valve hole part, with valve element portion
Part seal band mating holes bottom is planar end surface, first piston head it is cylindrical with the first spring base in be straight step at claw cooperation
Circle, prevents the first spring members from being affected to come off with first piston by vacuum power in car load vacuum filling, and valve hole part departs from
Rigging position, causes car load brake system non-functional；Valve hole part is the center valve type brake main cylinder of integration, in less
Heart valve spring spring force, can reliably meet the automatic repairing function of ABS system；Simplify matching relationship and dimension chain accumulation between part
Tolerance is calculated, with the function of ensureing the less idle stroke of product assembly, while alleviating the labor intensity of driver；Valve hole part
Coordinate with the axial seal of piston crown planar end surface bottom hole, energy quick closedown center valve port, with fast run-up pressure and braking function；The
Width and length ratio are shaped as at one piston and the first control pin cooperation, are 5：The keyway of 7 ratios, can prevent the first control pin from existing
Working condition offsets interferes clamping stagnation, caused brake system non-functional with valve hole part；Compared with Traditional center formula master cylinder, drop
Low cost, the valve part that can be saved in first piston part, second piston part, i.e., a set of center valve type braking master
Cylinder assembly, can save two valve parts, while improve efficiency of assembling, optimize the processability of piston crown bottom hole molding,
And further optimize center valve type brake main cylinder and build pressure characteristic.
Claims (1)
1. the center valve type brake main cylinder of a kind of valve hole part integration, it is characterised in that：In Master cylinder body and first piston part
Primary cup radial seal, with second piston part in primary cup and secondary leather cup radial seal, cover plate installed in second control
Pin outside, the second control pin are arranged in master cylinder body by adapter sleeve, and dish-shaped reed is arranged on the outside of the first control pin, the first control
Cotter is arranged in master cylinder body by adapter sleeve, and back-up ring is mounted with the outside of dish-shaped reed, and the second secondary leather cup is arranged on the outside of back-up ring,
Spacing ring is arranged on the outside of the second secondary leather cup, and O-ring seal is arranged on the outside of spacing ring, and check ring is arranged on outside spacing ring
Side, master cylinder sealing ring are arranged on the outside of Master cylinder body, and Master cylinder body forms brake chamber two, center valve port two with second piston member forward end
At the valve hole part two in second piston part, it is located in second piston part for sap cavity, Master cylinder body and first piston portion
There is brake chamber one between part, center valve port one is located at the valve hole part one in first piston part；
In described first piston part, spring retainer seat and the first spring base pass through spring retainer bar and small washer axial direction riveting
Connect, first piston spring is arranged between spring retainer seat and the first spring base, outside the first spring base endoporus and first piston head
Circle interference fit, spring retainer rod rear end Mian Yu centers valve spring end face compression fit, center valve spring one and valve hole part one
The cylindrical interference fit in portion, the step end face compression fit with valve hole part one, valve hole part one are put down with first piston head bore bottom
End face compression fit, primary cup and the cylindrical interference fit of first piston head；
In described second piston part, the second secondary leather cup and the cylindrical interference fit of second piston step, second spring seat endoporus
With the cylindrical interference fit of second piston head, second spring seat is cylindrical with second piston spring internal diameter interference fit, center valve spring two
One end and the step end face compression fit of second spring seat compression fit, the other end and valve hole part two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938672.1U CN206067730U (en) | 2016-08-25 | 2016-08-25 | The center valve type brake main cylinder of valve hole part integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620938672.1U CN206067730U (en) | 2016-08-25 | 2016-08-25 | The center valve type brake main cylinder of valve hole part integration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206067730U true CN206067730U (en) | 2017-04-05 |
Family
ID=58431843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620938672.1U Active CN206067730U (en) | 2016-08-25 | 2016-08-25 | The center valve type brake main cylinder of valve hole part integration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206067730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566611A (en) * | 2019-08-30 | 2019-12-13 | 贵州新安航空机械有限责任公司 | Brake actuating cylinder piston assembly with one-way valve |
-
2016
- 2016-08-25 CN CN201620938672.1U patent/CN206067730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566611A (en) * | 2019-08-30 | 2019-12-13 | 贵州新安航空机械有限责任公司 | Brake actuating cylinder piston assembly with one-way valve |
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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: 20181213 Address after: 610100 No. 201 Heling West Road, Longquanyi District, Chengdu City, Sichuan Province Patentee after: Chengdu Dongguang o - Wei automobile brake system Co., Ltd. Address before: 130000 Weiming Street 999, Changchun High-tech Zone, Jilin Province Patentee before: Jilin Dongguang Aowei Auto. Brake System Co., Ltd. |