CN202732798U - Protective device of spring in brake wheel cylinder - Google Patents
Protective device of spring in brake wheel cylinder Download PDFInfo
- Publication number
- CN202732798U CN202732798U CN 201220444829 CN201220444829U CN202732798U CN 202732798 U CN202732798 U CN 202732798U CN 201220444829 CN201220444829 CN 201220444829 CN 201220444829 U CN201220444829 U CN 201220444829U CN 202732798 U CN202732798 U CN 202732798U
- Authority
- CN
- China
- Prior art keywords
- spring
- hole
- cylinder body
- wheel cylinder
- protective device
- 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 protective device of a spring in a brake wheel cylinder. The protective device of the spring in the brake wheel cylinder comprises a cylinder body, a radial through hole is arranged in the cylinder body, a left piston and a right piston are arranged in the radial through hole, the left piston and the right piston are in sliding fit with the hole wall of the radial through hole, the spring is connected between the left piston and the right piston, dust covers are respectively installed on cylinder body parts located on two sides of the radial through hole, an oil nozzle leading to the radial through hole is arranged on the cylinder body, a guide sleeve is arranged on the outer side of the spring, and the length of the guide sleeve is less than that of the spring. The protective device of the spring in the brake wheel cylinder is simple in structure, the guide sleeve is arranged outside the spring, the spring is protected in the process of rapid stretch-out and draw-back of the spring, and the protective device enables the spring not to generate deformation and guarantees service life of the spring.
Description
Technical field
The utility model relates to the automotive brake field, is specifically related to a kind of wheel cylinder inner spring protective gear.
Background technique
Wheel cylinder generally relies on pressurized air or oil to enter master cylinder, and pushing piston etc. overlap base apparatus and a braking action, are parts of automotive brake, for generation of the power that hinders vehicle movement or movement tendency, i.e. braking force.
In the working procedure, if the oil pressure of wheel cylinder inner chamber or pressure change are excessive, will cause the piston of wheel cylinder inside to produce fast moving, and the spring of connection piston also can be thereupon flexible fast, thereby cause the distortion of spring.
The model utility content
The purpose of this utility model provides a kind of wheel cylinder inner spring protective gear, at the outer installment guide pin bushing of spring, protects spring, makes it can not produce distortion.
The technical solution of the utility model is as follows:
A kind of wheel cylinder inner spring protective gear, 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 be connected with spring between the left and right piston, be positioned on the cylinder body of described 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; The outside of described spring is provided with guide pin bushing, and the length of described guide pin bushing is less than the length of spring.
Described wheel cylinder inner spring protective gear, it is characterized in that: the inboard of described left and right piston is respectively equipped with leather cup.
The beneficial effects of the utility model:
The utility model is simple in structure, at the outer installment guide pin bushing of spring, protects spring in the process of spring quick-expansion, makes it can not produce distortion, has ensured the working life of spring.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, a kind of wheel cylinder inner spring protective gear, 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, left and right piston 7,4 and the hole wall of radial direction through hole 6 be slidingly matched, and be connected with spring 2 between the left and right piston 7,4, be used for fixing spring 2, 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; The outside of spring 2 is provided with rubber guide pin bushing 8, because the stretch capability of rubber guide pin bushing 8 is poorer than spring 2, so require the length of rubber guide pin bushing 8 less than the length of spring 2.
Further, left and right piston 7,4 inboard are respectively equipped with leather cup 3.
Claims (2)
1. wheel cylinder inner spring protective gear, 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 be connected with spring between the left and right piston, be positioned on the cylinder body of described 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; The outside of described spring is provided with guide pin bushing, and the length of described guide pin bushing is less than the length of spring.
2. wheel cylinder inner spring protective gear according to claim 1, it is characterized in that: the inboard of described left and right piston is respectively equipped with leather cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220444829 CN202732798U (en) | 2012-08-31 | 2012-08-31 | Protective device of spring in brake wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220444829 CN202732798U (en) | 2012-08-31 | 2012-08-31 | Protective device of spring in brake wheel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732798U true CN202732798U (en) | 2013-02-13 |
Family
ID=47658499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220444829 Expired - Fee Related CN202732798U (en) | 2012-08-31 | 2012-08-31 | Protective device of spring in brake wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732798U (en) |
-
2012
- 2012-08-31 CN CN 201220444829 patent/CN202732798U/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: 20130213 Termination date: 20130831 |