CN102338174A - Piston stroke protecting device of brake wheel cylinder - Google Patents
Piston stroke protecting device of brake wheel cylinder Download PDFInfo
- Publication number
- CN102338174A CN102338174A CN2011102843323A CN201110284332A CN102338174A CN 102338174 A CN102338174 A CN 102338174A CN 2011102843323 A CN2011102843323 A CN 2011102843323A CN 201110284332 A CN201110284332 A CN 201110284332A CN 102338174 A CN102338174 A CN 102338174A
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- CN
- China
- Prior art keywords
- piston
- hole
- cylinder body
- locking plate
- spring locking
- 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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Abstract
The invention discloses a piston stroke protecting device of a brake wheel cylinder, which comprises a cylinder body, wherein the cylinder body is internally provided with a radial through hole, a left piston and a right piston are arranged in the radial through hole and are in sliding matching with the wall of the radial through hole, a spring is connected between the left piston and the right piston, dustproof covers are respectively arranged on the cylinder body at two sides of the radial through hole, and the cylinder body is provided with an oil nozzle leading to the radial through hole. The piston stroke protecting device also comprises a spring locking plate, one end of the spring locking plate is fixed on the outer wall of the cylinder body, and the other end of the spring locking plate is pressed at the outer side of the left piston or the right piston. The piston stroke protecting device has a compact structure, and can apply a lateral pre-pressing force to the pistons because the spring locking plate is fixed on the outer wall of the cylinder body, thereby protecting the piston stroke, and preventing overlarge oil pressure or air pressure in an inner cavity of the wheel cylinder from causing a safety accident that the pistons fly out.
Description
Technical field
The present invention relates to the automotive brake field, be specifically related to a kind of piston stroke protective gear of wheel cylinder.
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, even fly out, not only cause loss, also can bring potential safety hazard if the oil pressure of wheel cylinder inner chamber or air pressure are excessive.
Summary of the invention
The piston stroke protective gear that the purpose of this invention is to provide a kind of wheel cylinder, fixing spring locking plate on the outer wall of cylinder body comes piston stroke is protected.
Technological scheme of the present invention is following:
A kind of piston stroke protective gear of wheel cylinder; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, 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 be connected with spring between the left and right piston, be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; 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.
The piston stroke protective gear of described wheel cylinder is characterized in that: the inboard of said left and right piston is respectively equipped with leather cup.
Beneficial effect of the present invention:
Compact structure of the present invention; Fixing spring locking plate on the outer wall of cylinder body; Can apply the precompression of side direction to piston, thereby the stroke of piston is played a protective role, avoid causing the generation of the security incident that piston flies out owing to the oil pressure of wheel cylinder inner chamber or air pressure are excessive.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, a kind of piston stroke protective gear of wheel cylinder includes cylinder body 1; Be provided with radial direction through hole 6 in the cylinder body 1; Be provided with left and right piston 3,4 in the radial direction through hole 6, the hole wall of left and right piston 3,4 and radial direction through hole 6 is slidingly matched, and left and right piston 3, is connected with spring 9 between 4; One end of the left and right piston 3,4 that wherein is connected with spring 9 is respectively equipped with spring seat 10; Be used for fixing spring 9, be positioned on the cylinder body 1 of radial direction through hole 6 both sides and be separately installed with dust-proof cover 5, cylinder body 1 is provided with the oil nozzle that leads to radial direction through hole 6; Comprise spring locking plate 8, an end of spring locking plate 8 is fixed on through pan head screw 7 on the outer wall of cylinder body 1, and the other end of spring locking plate 8 is pressed in the outside of left piston 3, and left piston 3 mobile played the resilient protection effect.
Further, the inboard of left and right piston 3,4 is respectively equipped with leather cup 2.
Claims (2)
1. the piston stroke protective gear of a wheel cylinder; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, 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 be connected with spring between the left and right piston, be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; 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.
2. the piston stroke protective gear of wheel cylinder according to claim 1, it is characterized in that: the inboard of said left and right piston is respectively equipped with leather cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102843323A CN102338174A (en) | 2011-09-22 | 2011-09-22 | Piston stroke protecting device of brake wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102843323A CN102338174A (en) | 2011-09-22 | 2011-09-22 | Piston stroke protecting device of brake wheel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338174A true CN102338174A (en) | 2012-02-01 |
Family
ID=45514067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102843323A Pending CN102338174A (en) | 2011-09-22 | 2011-09-22 | Piston stroke protecting device of brake wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338174A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280085A (en) * | 1999-07-08 | 2001-01-17 | 浙江亚太机电集团公司 | Double-collar and shoe type hydraulic automobile brake with self-regulated gap |
| JP2006258190A (en) * | 2005-03-17 | 2006-09-28 | Nissin Kogyo Co Ltd | Drum brake for vehicle |
| 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 |
| CN201891773U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Automobile wheel cylinder |
| CN102146973A (en) * | 2011-03-16 | 2011-08-10 | 湖南运达机械制造有限公司 | Self-regulating clearance hydraulic brake rear slave cylinder with temperature compensation function |
-
2011
- 2011-09-22 CN CN2011102843323A patent/CN102338174A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280085A (en) * | 1999-07-08 | 2001-01-17 | 浙江亚太机电集团公司 | Double-collar and shoe type hydraulic automobile brake with self-regulated gap |
| JP2006258190A (en) * | 2005-03-17 | 2006-09-28 | Nissin Kogyo Co Ltd | Drum brake for vehicle |
| 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 |
| CN201891773U (en) * | 2010-11-03 | 2011-07-06 | 芜湖恒坤汽车部件有限公司 | Automobile wheel cylinder |
| CN102146973A (en) * | 2011-03-16 | 2011-08-10 | 湖南运达机械制造有限公司 | Self-regulating clearance hydraulic brake rear slave cylinder with temperature compensation 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: 20120201 |