CN102501848A - Rear braking cylinder internally provided with proportional valve - Google Patents
Rear braking cylinder internally provided with proportional valve Download PDFInfo
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- CN102501848A CN102501848A CN201110342500XA CN201110342500A CN102501848A CN 102501848 A CN102501848 A CN 102501848A CN 201110342500X A CN201110342500X A CN 201110342500XA CN 201110342500 A CN201110342500 A CN 201110342500A CN 102501848 A CN102501848 A CN 102501848A
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- valve
- piston
- steel ball
- cylinder body
- main piston
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Abstract
The invention discloses a rear braking cylinder internally provided with a proportional valve. The rear braking cylinder comprises a cylinder body in which an oil chamber is arranged, and an air outlet and an oil inlet communicated with the oil chamber are arranged on the cylinder body; the air outlet is vertically arranged in the outer wall of the cylinder body; the oil chamber is internally provided with an auxiliary piston and a main piston, leather rings are sleeved outside the auxiliary piston and the main piston, and elastic protective covers are clamped on the rear end of the auxiliary piston and the front end of the main piston; the main piston is internally provided with a counterbore in which the proportional valve and a small piston are arranged, the small piston is provided with a step, and a spring is filled between the step of the small piston and the bottom of the counterbore; a steel ball is arranged in the proportional valve, a small spring is filled between the steel ball and a valve cavity, and an L-shaped valve rod fixed together with the steel ball is arranged at a valve core. In the invention, dust covers are arranged on the upper ends of the pistons, the sealing leather rings are arranged at the side of the pistons, and meanwhile, a dust plug is arranged in the oil inlet, thus, dust and air can be effectively prevented from entering the oil chamber, and the brake cylinder cannot go wrong even if being used for a long term.
Description
Technical field
The present invention relates to brake pump field behind the automobile, relate in particular to a kind of wheel cylinder of built-in apportioning valve.
Background technology
Brake cylinder is the indispensable part of brake system, and its significant feature is to push brake facing, and brake facing friction brake drum makes speed of a motor vehicle reduction and static.Step on brake back master cylinder generation thrust hydraulic oil is overwhelmed brake cylinder, under the pressure of pump housing piston, brake oil pipe is extruded oil pipe and makes braking function to each wheel cylinder diffluence.When the releasing of brake plate.Oil outlet in the master cylinder can be closed, and oil inlet is opened, and brake solution is back in the master cylinder from each wheel cylinder, gets back to virgin state.Brake cylinder structure in the past, its cylinder body are the structure design that the top directly has oil inlet mostly, and this kind structure does not have dust keeper, and long-term use lets dust and moisture get into cylinder body easily, causes faults such as seizure of piston and leakage of oil.Therefore imagination provides a kind of equipment to solve this problem.
Summary of the invention
The object of the invention just provides the built-in apportioning valve formula that a kind of oil inlet has dust keeper and divides pump assembly; Solve brake cylinder structure in the past; Its cylinder body is the structure design that the top directly has oil inlet mostly; This kind structure does not have dust keeper, and long-term use lets dust and moisture get into cylinder body easily, causes the problem of faults such as seizure of piston and leakage of oil.
For solving the problems of the technologies described above, technical scheme of the present invention is following:
A kind of rear braking subpump of built-in apportioning valve includes cylinder body, has the grease chamber in the described cylinder body, has the fuel feed hole and the air bleed hole that communicate with the grease chamber on the cylinder body; Described air bleed hole is horizontally through on the outer wall of cylinder block; Auxiliary piston and main piston are installed in the described grease chamber, and auxiliary piston and main piston are respectively installed with apron outward, and the rear end of auxiliary piston and the front end of main piston all are installed with the elasticity protective cover; Have counter sink in the described main piston, be slidingly fitted with valve piston in the counter sink, valve piston is provided with step, is equipped with spring between at the bottom of the step on the valve piston and the hole of counter sink; The front end of valve piston has valve pocket; The front end of valve pocket is equipped with valve seat; Be placed with steel ball in the valve pocket, be equipped with little spring between steel ball and the valve pocket, have valve port, the oil outlet that communicates with valve pocket on valve seat, valve piston sidewall, the main piston sidewall; Valve port and steel ball are complementary, and the valve port on the valve piston sidewall is positioned at the proceeds posterolateral of steel ball.
In the described counter sink circlip for bore is installed; The described steel ball outside is supported with L shaped strut member, and strut member is fixed by circlip for bore.
Compared with prior art, beneficial effect of the present invention is:
The present invention passes through in the piston upper end dust boot to be installed, and at the piston side sealing apron is installed, and the while is equipped with dust plug in oil inlet, can effectively prevent dust and air admission grease chamber, has guaranteed that long-time use of brake cylinder can not go wrong yet.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is done further detailed explanation:
Referring to accompanying drawing, a kind of rear braking subpump of built-in apportioning valve includes cylinder body 1, has the grease chamber in the cylinder body 1, has the fuel feed hole 12 and the air bleed hole that communicate with the grease chamber on the cylinder body; Air bleed hole is horizontally through on the outer wall of cylinder block; Auxiliary piston 2 and main piston 3 are installed in the described grease chamber, and auxiliary piston and main piston are respectively installed with apron 4 outward, and the rear end of auxiliary piston and the front end of main piston all are installed with elasticity protective cover 5; Have counter sink in the described main piston, be slidingly fitted with valve piston in the counter sink, valve piston is set with cuticle circle 8 outward, and valve piston is provided with step, is equipped with spring 9 between at the bottom of the step on the valve piston and the hole of counter sink; The front end of valve piston has valve pocket; The front end of valve pocket is equipped with valve seat, is placed with steel ball 10 in the valve pocket, is equipped with little spring 11 between steel ball 10 and the valve pocket; Have valve port, the oil outlet that communicates with valve pocket on valve seat, valve piston sidewall, the main piston sidewall; Valve port and steel ball are complementary, and the valve port on the valve piston sidewall is positioned at the proceeds posterolateral of steel ball, and circlip for bore 6 is installed in the counter sink; The steel ball outside is supported with L shaped strut member 7, and strut member 7 is fixed by circlip for bore.
Claims (2)
1. the rear braking subpump of a built-in apportioning valve includes cylinder body, it is characterized in that: have the grease chamber in the described cylinder body, have the fuel feed hole and the air bleed hole that communicate with the grease chamber on the cylinder body; Described air bleed hole is horizontally through on the outer wall of cylinder block; Auxiliary piston and main piston are installed in the described grease chamber, and auxiliary piston and main piston are respectively installed with apron outward, and the rear end of auxiliary piston and the front end of main piston all are installed with the elasticity protective cover; Have counter sink in the described main piston, be slidingly fitted with valve piston in the counter sink, valve piston is provided with step, is equipped with spring between at the bottom of the step on the valve piston and the hole of counter sink; The front end of valve piston has valve pocket; The front end of valve pocket is equipped with valve seat; Be placed with steel ball in the valve pocket, be equipped with little spring between steel ball and the valve pocket, have valve port, the oil outlet that communicates with valve pocket on valve seat, valve piston sidewall, the main piston sidewall; Valve port and steel ball are complementary, and the valve port on the valve piston sidewall is positioned at the proceeds posterolateral of steel ball.
2. according to the brake cylinder of the described built-in apportioning valve of claim 1, it is characterized in that: in the described counter sink circlip for bore is installed; The described steel ball outside is supported with L shaped strut member, and strut member is fixed by circlip for bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342500XA CN102501848A (en) | 2011-11-03 | 2011-11-03 | Rear braking cylinder internally provided with proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342500XA CN102501848A (en) | 2011-11-03 | 2011-11-03 | Rear braking cylinder internally provided with proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102501848A true CN102501848A (en) | 2012-06-20 |
Family
ID=46214004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110342500XA Pending CN102501848A (en) | 2011-11-03 | 2011-11-03 | Rear braking cylinder internally provided with proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102501848A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88205975U (en) * | 1988-05-25 | 1988-11-23 | 铁道部兰州铁路局 | Plunger piston angled folding door |
| CN2099047U (en) * | 1991-01-22 | 1992-03-18 | 刘时新 | Power assistance of air-pressure brake for automobile wheels |
| JPH04143154A (en) * | 1990-10-04 | 1992-05-18 | Honda Motor Co Ltd | Braking device for motor cycle |
| CN2167011Y (en) * | 1993-04-13 | 1994-06-01 | 肖继麟 | Safety brake system for automobile |
| CN2403647Y (en) * | 2000-01-04 | 2000-11-01 | 桐乡市亚力实业公司 | Antilocking hydraulic brake cylinder for motorcycle |
| CN2425829Y (en) * | 2000-05-26 | 2001-04-04 | 张柏青 | Hydraulic brake cylinder for car |
| CN2677242Y (en) * | 2003-10-26 | 2005-02-09 | 万向钱潮股份有限公司 | Automobile brake antilocking subpump proportional valve |
| CN2794949Y (en) * | 2005-04-11 | 2006-07-12 | 万向钱潮股份有限公司 | Braking wheel cylinder assembly with ratio valve |
| CN101024396A (en) * | 2006-02-22 | 2007-08-29 | 日产自动车株式会社 | Vehicle brake apparatus and method |
| CN201751255U (en) * | 2010-06-30 | 2011-02-23 | 厦门永裕机械工业有限公司 | Proportional valve piston structure |
| CN202345666U (en) * | 2011-11-03 | 2012-07-25 | 芜湖众发汽车制动***有限公司 | Rear brake cylinder internally provided with proportional valve |
-
2011
- 2011-11-03 CN CN201110342500XA patent/CN102501848A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88205975U (en) * | 1988-05-25 | 1988-11-23 | 铁道部兰州铁路局 | Plunger piston angled folding door |
| JPH04143154A (en) * | 1990-10-04 | 1992-05-18 | Honda Motor Co Ltd | Braking device for motor cycle |
| CN2099047U (en) * | 1991-01-22 | 1992-03-18 | 刘时新 | Power assistance of air-pressure brake for automobile wheels |
| CN2167011Y (en) * | 1993-04-13 | 1994-06-01 | 肖继麟 | Safety brake system for automobile |
| CN2403647Y (en) * | 2000-01-04 | 2000-11-01 | 桐乡市亚力实业公司 | Antilocking hydraulic brake cylinder for motorcycle |
| CN2425829Y (en) * | 2000-05-26 | 2001-04-04 | 张柏青 | Hydraulic brake cylinder for car |
| CN2677242Y (en) * | 2003-10-26 | 2005-02-09 | 万向钱潮股份有限公司 | Automobile brake antilocking subpump proportional valve |
| CN2794949Y (en) * | 2005-04-11 | 2006-07-12 | 万向钱潮股份有限公司 | Braking wheel cylinder assembly with ratio valve |
| CN101024396A (en) * | 2006-02-22 | 2007-08-29 | 日产自动车株式会社 | Vehicle brake apparatus and method |
| CN201751255U (en) * | 2010-06-30 | 2011-02-23 | 厦门永裕机械工业有限公司 | Proportional valve piston structure |
| CN202345666U (en) * | 2011-11-03 | 2012-07-25 | 芜湖众发汽车制动***有限公司 | Rear brake cylinder internally provided with proportional valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120620 |