CN102384189A - Wheel cylinder assembly of rear brake - Google Patents
Wheel cylinder assembly of rear brake Download PDFInfo
- Publication number
- CN102384189A CN102384189A CN2011103418716A CN201110341871A CN102384189A CN 102384189 A CN102384189 A CN 102384189A CN 2011103418716 A CN2011103418716 A CN 2011103418716A CN 201110341871 A CN201110341871 A CN 201110341871A CN 102384189 A CN102384189 A CN 102384189A
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- China
- Prior art keywords
- piston
- cylinder body
- rear brake
- grease chamber
- wheel cylinder
- 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.)
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a wheel cylinder assembly of a rear brake, which comprises a cylinder body, wherein a cylindrical oil chamber is formed in the cylinder body; an oil inlet hole and an air bleeding hole, which are communicated with the oil chamber, are formed on the cylinder body; a piston is mounted in the oil chamber; a rubber ring is sleeved on the piston; a protecting cover is clamped on the cylinder body; a dust-proof plug is mounted in the oil inlet hole; and an air bleeding screw and an air bleeding nut are mounted in the air bleeding hole. As the protecting cover is mounted at the upper end of the piston, and the sealing rubber ring is arranged on the side edge of the piston, dust and air can be prevented from entering into the oil chamber effectively. Therefore, the wheel cylinder can work for a long time without failure.
Description
Technical field
The present invention relates to brake pump field behind the automobile, relate in particular to a kind of rear braking subpump assembly.
Background technique
Rear braking subpump is the important composition parts of brake device for car, is usually located in the automobile rear brake, steps on brake back master cylinder and produces thrust hydraulic oil is overwhelmed brake cylinder, and the inner piston of wheel cylinder receives hydraulic coupling and begins to move brake block is promoted.Contain brake oil in the brake cylinder, and oil outlet and filler opening are arranged.When touching on the brake, oil outlet is opened, and filler opening is closed.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 general braking pump can be closed, and filler opening is opened, and brake oil is back in the general braking pump from each wheel cylinder, gets back to reset condition.
Summary of the invention
In order to solve the problems of the prior art, the present invention provides a kind of rear brake to divide pump assembly, and is easy to use, simple in structure, the working procedure good stability, and long-term use is not fragile.
In order to solve the problems of the technologies described above, the technological scheme that the present invention adopts is following:
A kind of rear brake is divided pump assembly, comprises cylinder body, and described cylinder interior has columniform grease chamber, has the oil inlet hole and the vent hole that communicate with the grease chamber on the cylinder body; Inside, described grease chamber be equipped with two each other over against piston, piston is respectively installed with apron outward; Described cylinder body two ends are installed with protective housing respectively, and the protective housing cutting ferrule is in the draw-in groove of the rear end of piston.
In the described oil inlet hole dust plug is installed; Bleed screw and bleeder cap are installed in the described vent hole.
The present invention passes through in the piston upper end protective housing to be installed, and at piston side installation sealing apron, can effectively prevent dust and air entering grease chamber, has guaranteed that long-time use of wheel cylinder can not go wrong yet, and the working procedure good stability uses not fragile for a long time.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Fig. 2 is a left sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done further explain through embodiment:
Referring to accompanying drawing, a kind of rear brake is divided pump assembly, comprises cylinder body 1, and cylinder body 1 inside has columniform grease chamber, has the oil inlet hole 5 and vent hole 6 that communicate with the grease chamber on the cylinder body 1; Inside, grease chamber be equipped with two each other over against piston 2, the piston 2 outer aprons 3 that are respectively installed with; The cylinder body two ends are installed with protective housing 4 respectively, and protective housing 4 cutting ferrules are equipped with dust plug 7 in the oil inlet hole 5 of top, grease chamber in the draw-in groove of the rear end of piston 2, bleed screw 8 and bleeder cap 9 are installed in the vent hole 6.
Claims (2)
1. a rear brake is divided pump assembly, comprises cylinder body, it is characterized in that: described cylinder interior has columniform grease chamber, has the oil inlet hole and the vent hole that communicate with the grease chamber on the cylinder body; Inside, described grease chamber be equipped with two each other over against piston, piston is respectively installed with apron outward; Described cylinder body two ends are installed with protective housing respectively, and the protective housing cutting ferrule is in the draw-in groove of the rear end of piston.
2. divide pump assembly according to the described rear brake of claim 1, it is characterized in that: in the described oil inlet hole dust plug is installed; Bleed screw and bleeder cap are installed in the described vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103418716A CN102384189A (en) | 2011-11-03 | 2011-11-03 | Wheel cylinder assembly of rear brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103418716A CN102384189A (en) | 2011-11-03 | 2011-11-03 | Wheel cylinder assembly of rear brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102384189A true CN102384189A (en) | 2012-03-21 |
Family
ID=45823894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103418716A Pending CN102384189A (en) | 2011-11-03 | 2011-11-03 | Wheel cylinder assembly of rear brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102384189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014207A1 (en) * | 2016-07-19 | 2018-01-25 | 乐矣天 | Dual-cylinder brake caliper assembly facilitating air discharge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144905A (en) * | 2008-12-22 | 2010-07-01 | Akebono Brake Ind Co Ltd | Drum brake device |
| CN201891772U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel cylinder assembly |
| CN201891775U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel cylinder assembly |
| CN201891774U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel brake cylinder assembly |
| CN202418344U (en) * | 2011-11-03 | 2012-09-05 | 芜湖众发汽车制动系统有限公司 | Sub pump assembly of rear brake |
-
2011
- 2011-11-03 CN CN2011103418716A patent/CN102384189A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144905A (en) * | 2008-12-22 | 2010-07-01 | Akebono Brake Ind Co Ltd | Drum brake device |
| CN201891772U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel cylinder assembly |
| CN201891775U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel cylinder assembly |
| CN201891774U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Wheel brake cylinder assembly |
| CN202418344U (en) * | 2011-11-03 | 2012-09-05 | 芜湖众发汽车制动系统有限公司 | Sub pump assembly of rear brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014207A1 (en) * | 2016-07-19 | 2018-01-25 | 乐矣天 | Dual-cylinder brake caliper assembly facilitating air discharge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120321 |