CN102364147A - Brake wheel cylinder assembly with stroke protection - Google Patents
Brake wheel cylinder assembly with stroke protection Download PDFInfo
- Publication number
- CN102364147A CN102364147A CN2011102841830A CN201110284183A CN102364147A CN 102364147 A CN102364147 A CN 102364147A CN 2011102841830 A CN2011102841830 A CN 2011102841830A CN 201110284183 A CN201110284183 A CN 201110284183A CN 102364147 A CN102364147 A CN 102364147A
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- China
- Prior art keywords
- cylinder body
- hole
- spring locking
- piston
- right piston
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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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Abstract
The invention discloses a brake wheel cylinder assembly with stroke protection, which comprises a cylinder body, wherein a radial through hole is arranged in the cylinder body; an oil nozzle or an air tap communicated with the radial through hole is arranged on the cylinder body; a left piston and a right piston which are in sliding fit with the radial through hole are arranged in the radial through hole; the front end of the left piston and the front end of the right piston respectively extend out of the two ends of the radial through hole and are sealed; lug bosses are respectively arranged at the rear end of the left piston and the rear end of the right piston; sealing rings are arranged around the outer sides of the lug bosses; elastic dust preventing covers are respectively arranged between the left piston and the outer part of the cylinder body as well as between the right piston and the outer part of the cylinder body; the brake wheel cylinder assembly also comprises a spring locking sheet; one end of the spring locking sheet is fixedly arranged on the outer wall of the cylinder body; and the other end of the spring locking sheet is pressed at the outer side of the extending part of the left piston or the right piston. The brake wheel cylinder assembly has a reasonable structure; the spring locking sheet is fixedly arranged on the outer wall of the cylinder body and the lug bosses are arranged at the rear ends of the pistons, and thus the spring locking sheet and the lug boss commonly play a cushioning action to guarantee the safe work of a brake wheel cylinder and avoid safety accidents of flying-out and collision of the pistons caused by over-high oil pressure or air pressure of an inner cavity of the wheel cylinder.
Description
Technical field
The present invention relates to the automotive brake field, be specifically related to a kind of wheel cylinder assembly that has the stroke protection.
Background technique
Wheel cylinder generally relies on pressurized air or oil to get into master cylinder, and promotion piston etc. overlap base apparatus and play braking action, are parts of automotive brake, are used to produce the power that hinders vehicle movement or movement tendency, i.e. braking force.
In the working procedure,, will cause wheel cylinder inner piston moment to be pushed out and to push back if the oil pressure of wheel cylinder inner chamber or air pressure are excessive; Being prone to during release that piston takes place flies out; Collision between the piston having taken place when pushing back, not only caused loss, also can bring potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of wheel cylinder assembly that has the stroke protection, fixing spring locking plate on the outer wall of cylinder body is provided with boss in the rear end of piston, plays buffer function together, ensures the trouble free service of wheel cylinder.
Technological scheme of the present invention is following:
A kind of wheel cylinder assembly that has the stroke protection; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; Be provided with left and right piston in the described radial direction through hole; The hole wall of described left and right piston and radial direction through hole is slidingly matched, and the front end of left and right piston stretches out from the two ends of radial direction through hole respectively and seals, and the rear end of left and right piston is respectively equipped with boss; The outside around boss is provided with seal ring, is respectively equipped with resilient dust boot between the outside of left and right piston and cylinder body; Comprise the spring locking plate, an end of said spring locking plate is fixed on the outer wall of cylinder body, and the other end of spring locking plate is pressed in the outside of left piston or right piston extension.
The described wheel cylinder assembly that has the stroke protection, it is characterized in that: an end of said spring locking plate is fixed on the outer wall of cylinder body through pan head screw.
Beneficial effect of the present invention:
The present invention is rational in infrastructure; Fixing spring locking plate on the outer wall of cylinder body is provided with boss in the rear end of piston, plays buffer function together; Ensure the trouble free service of wheel cylinder, avoided owing to the oil pressure of wheel cylinder inner chamber or the generation of the excessive security incident that causes piston to fly out and collide of air pressure.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the side view of structure of the present invention.
Embodiment
Referring to Fig. 1,2, a kind of wheel cylinder assembly that has the stroke protection includes cylinder body 1; Be provided with radial direction through hole 5 in the cylinder body 1, cylinder body 1 is provided with the oil nozzle 10 that leads to radial direction through hole 5 and is provided with dust plug 11, is provided with left and right piston 6,3 in the radial direction through hole 5; The hole wall of left and right piston 6,3 and radial direction through hole 5 is slidingly matched; The front end of left and right piston 6,3 stretches out from the two ends of radial direction through hole 5 respectively and seals, and the rear end of left and right piston 6,3 is respectively equipped with elastic boss 9, when left and right piston 6,3 produces rapid moving in opposite directions; Under the buffer function of boss 9; Can avoid left and right piston 6, produce collision between 3, be provided with seal ring 2, be respectively equipped with resilient dust boot 4 between the outside of left and right piston 6,3 and cylinder body 1 around the outside of boss 9; Comprise spring locking plate 7, an end of spring locking plate 7 is fixed on the outer wall of cylinder body 1, and the other end of spring locking plate 7 is pressed in the outside of left piston 6 extensions, and left piston 3 mobile played the resilient protection effect.
Further, an end of spring locking plate 7 is fixed on the outer wall of cylinder body 1 through pan head screw 8.
Claims (2)
1. one kind has the wheel cylinder assembly that stroke is protected; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; Be provided with left and right piston in the described radial direction through hole; The hole wall of described left and right piston and radial direction through hole is slidingly matched, and the front end of left and right piston stretches out from the two ends of radial direction through hole respectively and seals, and the rear end of left and right piston is respectively equipped with boss; The outside around boss is provided with seal ring, is respectively equipped with resilient dust boot between the outside of left and right piston and cylinder body; Comprise the spring locking plate, an end of said spring locking plate is fixed on the outer wall of cylinder body, and the other end of spring locking plate is pressed in the outside of left piston or right piston extension.
2. the wheel cylinder assembly that has the stroke protection according to claim 1, it is characterized in that: an end of said spring locking plate is fixed on the outer wall of cylinder body through pan head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102841830A CN102364147A (en) | 2011-09-22 | 2011-09-22 | Brake wheel cylinder assembly with stroke protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102841830A CN102364147A (en) | 2011-09-22 | 2011-09-22 | Brake wheel cylinder assembly with stroke protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102364147A true CN102364147A (en) | 2012-02-29 |
Family
ID=45690729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102841830A Pending CN102364147A (en) | 2011-09-22 | 2011-09-22 | Brake wheel cylinder assembly with stroke protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102364147A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB630380A (en) * | 1946-04-18 | 1949-10-12 | Bendix Aviat Corp | Improvements in or relating to brakes |
| CN201568497U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Double-acting brake wheel cylinder assembly |
| CN201568502U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Single-acting braking wheel cylinder assembly |
| CN202301612U (en) * | 2011-09-22 | 2012-07-04 | 芜湖恒坤汽车部件有限公司 | Wheel braking cylinder assembly with stroke protection function |
-
2011
- 2011-09-22 CN CN2011102841830A patent/CN102364147A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB630380A (en) * | 1946-04-18 | 1949-10-12 | Bendix Aviat Corp | Improvements in or relating to brakes |
| CN201568497U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Double-acting brake wheel cylinder assembly |
| CN201568502U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Single-acting braking wheel cylinder assembly |
| CN202301612U (en) * | 2011-09-22 | 2012-07-04 | 芜湖恒坤汽车部件有限公司 | Wheel braking cylinder assembly with stroke protection function |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120229 |