CN203098667U - Wheel-brake cylinder assembly with fixed travel protection - Google Patents
Wheel-brake cylinder assembly with fixed travel protection Download PDFInfo
- Publication number
- CN203098667U CN203098667U CN 201220680857 CN201220680857U CN203098667U CN 203098667 U CN203098667 U CN 203098667U CN 201220680857 CN201220680857 CN 201220680857 CN 201220680857 U CN201220680857 U CN 201220680857U CN 203098667 U CN203098667 U CN 203098667U
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- CN
- China
- Prior art keywords
- cylinder body
- right piston
- piston
- hole
- wheel
- 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 wheel-brake cylinder assembly with fixed travel protection. The wheel-brake cylinder assembly comprises a cylinder body and a spring lock sheet, a radial through hole is arranged in the cylinder body, a left piston and a right piston are arranged in the cylinder body and are slidably matched with the wall of the radial through hole, the front ends of the left piston and the right piston extend out from two sides of the radial through hole respectively and are sealed, bosses are arranged at the rear ends of the left piston and the right piston respectively, a sealing ring is arranged on the outer side of each boss, elastic dust-proof covers are arranged between the left piston and the outside of the cylinder body and between the right piston and the outside of the cylinder body respectively, one end of the spring lock sheet is fixed onto the cylinder body, the other end of the spring lock sheet is pressed on the outer side of the extending portion of the left piston or the right piston, a group of sliding grooves are arranged on the inner wall of the cylinder body, and sliders matched with the sliding grooves are arranged on the side wall of the right piston. The wheel-brake cylinder assembly is reasonable in structure, by the aid of the spring lock sheet fixed onto the outer wall of the cylinder body and by the design of the sliders and the sliding grooves, the motion range of the pistons is fixed, a buffer function is achieved, safety operation of a wheel-brake cylinder is guaranteed, and safety accidents are avoided.
Description
Technical field
The utility model relates to the automotive brake field, is specifically related to a kind of wheel cylinder assembly of fixed journey system protection.
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 piston moment of wheel cylinder inside to be pushed out and to push back if the oil pressure of wheel cylinder inner chamber or air pressure are excessive, piston easily takes place during release to fly out, collision between the piston having taken place when pushing back, not only caused loss, also can bring potential safety hazard.
The model utility content
The purpose of this utility model provides a kind of wheel cylinder assembly of fixed journey system protection, and 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.
The technical solution of the utility model is as follows:
A kind of wheel cylinder assembly of fixed journey system protection, include cylinder body, it is characterized in that: be provided with radial direction through hole in the described 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, the front end of left and right piston stretches out from the two ends of radial direction through hole respectively and seals, 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 described 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; Have one group of chute on the inwall of described cylinder body, the sidewall of right piston is provided with the slide block that matches with chute.
The wheel cylinder assembly of described fixed journey system protection, it is characterized in that: an end of described spring locking plate is fixed on the outer wall of cylinder body by pan head screw.
The beneficial effects of the utility model:
The utility model is rational in infrastructure, the design of fixing spring locking plate and slide block and chute on the outer wall of cylinder body, make the sphere of activities of piston fix and play buffer function, 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 the utility model structural representation.
Fig. 2 is the side view of the utility model structure.
Embodiment
Referring to Fig. 1,2, a kind of wheel cylinder assembly of fixed journey system protection, include 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, be provided with a left side in the radial direction through hole 5, right piston 6,3, a left side, right piston 6,3 are slidingly matched with the hole wall of radial direction through hole 5, a left side, right piston 6,3 front end stretches out from the two ends of radial direction through hole 5 respectively and seals, a left side, right piston 6,3 rear end is respectively equipped with elastic boss 9, work as a left side, right piston 6,3 produce rapid when mobile in opposite directions, under the buffer function of boss 9, can avoid a left side, right piston 6, produce collision between 3, the outside that centers on boss 9 is provided with seal ring 2, a left side, right piston 6,3 and the outside of cylinder body 1 between be respectively equipped with resilient dust boot 4; 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; Have one group of chute 1-1 on the inwall of cylinder body 1, the sidewall of right piston 3 is provided with the slide block 3-1 that matches with chute, 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 by pan head screw 8.
Claims (2)
1. the wheel cylinder assembly of fixed journey system protection, include cylinder body, it is characterized in that: be provided with radial direction through hole in the described 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, the front end of left and right piston stretches out from the two ends of radial direction through hole respectively and seals, 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 described 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; Have one group of chute on the inwall of described cylinder body, the sidewall of right piston is provided with the slide block that matches with chute.
2. the wheel cylinder assembly of fixed journey system protection according to claim 1, it is characterized in that: an end of described spring locking plate is fixed on the outer wall of cylinder body by pan head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680857 CN203098667U (en) | 2012-12-11 | 2012-12-11 | Wheel-brake cylinder assembly with fixed travel protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680857 CN203098667U (en) | 2012-12-11 | 2012-12-11 | Wheel-brake cylinder assembly with fixed travel protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098667U true CN203098667U (en) | 2013-07-31 |
Family
ID=48850071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680857 Expired - Fee Related CN203098667U (en) | 2012-12-11 | 2012-12-11 | Wheel-brake cylinder assembly with fixed travel protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098667U (en) |
-
2012
- 2012-12-11 CN CN 201220680857 patent/CN203098667U/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 |