CN203098666U - Piston protector for brake cylinder - Google Patents
Piston protector for brake cylinder Download PDFInfo
- Publication number
- CN203098666U CN203098666U CN 201220680755 CN201220680755U CN203098666U CN 203098666 U CN203098666 U CN 203098666U CN 201220680755 CN201220680755 CN 201220680755 CN 201220680755 U CN201220680755 U CN 201220680755U CN 203098666 U CN203098666 U CN 203098666U
- Authority
- CN
- China
- Prior art keywords
- hole
- piston
- radial direction
- cylinder body
- pistons
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a piston protector for a brake cylinder. The piston protector comprises a cylinder body provided with a radial through hole inside. A left piston and a right piston are arranged in the radial through hole and in slide fit with the wall of the radial hole. Springs are connected between the left and right pistons. Opposite end faces of the left and right pistons are provided with countersinks, bowl-shaped blocks are arranged in the countersinks through the springs and the bottoms of the bowl-shaped blocks are opposite to each other. The cylinder body is provided with an oil or gas nozzle leading to the radial through hole. The piston protector of the brake cylinder is simple in structure, the elastic bowl-shaped blocks arranged on the inner sides of the pistons function in buffering and preventing severe collision between the pistons, abrasion of the pitons is reduced and service lives of the pistons are prolonged.
Description
Technical field
The utility model relates to the automotive brake field, is specifically related to a kind of piston protective gear of wheel cylinder.
Background technique
Wheel cylinder generally relies on pressurized air or oil to enter 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 the piston of wheel cylinder inside in violent contraction process, to bump, be damaged, thereby influence working life if the oil pressure of wheel cylinder inner chamber or pressure change are excessive.
The model utility content
The purpose of this utility model provides a kind of piston protective gear of wheel cylinder, in the inboard of piston elastic block rubber is set, and plays buffer function, prevents to produce fierce collision.
The technical solution of the utility model is as follows:
A kind of piston protective gear of wheel cylinder, include cylinder body, it is characterized in that: be provided with radial direction through hole in the described 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 is connected with spring between the left and right piston, all has counterbore on the opposing end faces of left and right piston, be slidingly fitted with a bowl type piece by spring in the counterbore, the bowl end of described bowl type piece, is relative; Described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole, is positioned on the cylinder body of described radial direction through hole both sides dust-proof cover all is installed.
The piston protective gear of described wheel cylinder is characterized in that: be respectively equipped with seal ring between the hole wall of described left and right piston and radial direction through hole.
The beneficial effects of the utility model:
The utility model is simple in structure, and flexible bowl type piece is set in the inboard of piston, has played good buffer function, prevents to produce fierce collision between the piston, has reduced the wearing and tearing between the piston, has prolonged the working life of piston.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, a kind of piston protective gear of wheel cylinder, include cylinder body 1, be provided with radial direction through hole 6 in the cylinder body 1, be provided with left and right piston 7,4 in the radial direction through hole 6, the hole wall of left and right piston 7,4 and radial direction through hole 6 is slidingly matched, be connected with spring 2 between the left and right piston 7,4, all have counterbore on the opposing end faces of left and right piston 7,4, be slidingly fitted with a bowl type piece 8 by spring in the counterbore, the bowl end of bowl type piece 8, is relative; Cylinder body 1 is provided with oil nozzle or the valve that leads to radial direction through hole 6, is positioned on the cylinder body 1 of radial direction through hole 6 both sides to be separately installed with dust-proof cover 5; Be equipped with seal ring 3 between the hole wall of left and right piston 7,4 and radial direction through hole 6.
Claims (2)
1. the piston protective gear of wheel cylinder, include cylinder body, it is characterized in that: be provided with radial direction through hole in the described 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 is connected with spring between the left and right piston, all has counterbore on the opposing end faces of left and right piston, be slidingly fitted with a bowl type piece by spring in the counterbore, the bowl end of described bowl type piece, is relative; Described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole, is positioned on the cylinder body of described radial direction through hole both sides dust-proof cover all is installed.
2. the piston protective gear of wheel cylinder according to claim 1 is characterized in that: be respectively equipped with seal ring between the hole wall of described left and right piston and radial direction through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680755 CN203098666U (en) | 2012-12-11 | 2012-12-11 | Piston protector for brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680755 CN203098666U (en) | 2012-12-11 | 2012-12-11 | Piston protector for brake cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098666U true CN203098666U (en) | 2013-07-31 |
Family
ID=48850070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680755 Expired - Fee Related CN203098666U (en) | 2012-12-11 | 2012-12-11 | Piston protector for brake cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098666U (en) |
-
2012
- 2012-12-11 CN CN 201220680755 patent/CN203098666U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131211 |