CN202301632U - Double-piston brake master cylinder with extended oil inlet joints and oil makeup ring - Google Patents
Double-piston brake master cylinder with extended oil inlet joints and oil makeup ring Download PDFInfo
- Publication number
- CN202301632U CN202301632U CN2011203617838U CN201120361783U CN202301632U CN 202301632 U CN202301632 U CN 202301632U CN 2011203617838 U CN2011203617838 U CN 2011203617838U CN 201120361783 U CN201120361783 U CN 201120361783U CN 202301632 U CN202301632 U CN 202301632U
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- China
- Prior art keywords
- cylinder body
- left end
- piston assembly
- spring
- fuel inlet
- 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 double-piston brake master cylinder with extended oil inlet joints and an oil makeup ring. The double-piston brake master cylinder comprises a cylinder body. An oil chamber is formed on the middle part of the cylinder body. A protective cover is arranged on the right end part of the oil chamber. A rear piston assembly is arranged at the left end of the protective cover. A rear spring is arranged at the left end of the rear piston assembly. A front piston assembly is arranged on the left side of the rear spring. A front washer is sleeved on the outer wall of the left end of the front piston assembly. A pressure spring is arranged at the left end of the front washer. A spring seat is arranged at the left end of the pressure spring. A front spring is arranged at the left end of the spring seat. A screw cap is arranged at the left end of the cylinder body. The left end of the front spring is pressed against the screw cap. A limiting bolt is arranged at a position at the lower end of each of the front and rear piston assemblies on the cylinder body. The oil inlet joints are arranged at corresponding positions at the upper ends of the front and rear piston assemblies on the cylinder body. According to the double-piston brake master cylinder, the extended oil inlet joints are arranged at the upper end of the cylinder body, so that oil-ways can be effectively prolonged, and are difficult to clog, a good oil return effect is achieved, and the service life of the product is prolonged.
Description
Technical field:
The utility model relates to the auto parts and components field, relates in particular to a kind of double-piston brake master cylinder with repairing ring of stretched fuel inlet fitting.
Background technique:
Brake master cylinder band vacuum booster assembly is that power source as braking system exists basically, and it is that brake pedal force with the driver is converted into hydraulic coupling, and has certain power-assisted effect, is divided into single piston and double piston type usually; Brake master cylinder structure in the past, its fuel inlet fitting is directly connected to lubricating cup, causes oil circuit to stop up easily, and piston also can not oil return after losing efficacy.Therefore imagination provides a kind of equipment to solve this problem.
The model utility content:
The purpose of the utility model just provides a kind of double-piston brake master cylinder with repairing ring of stretched fuel inlet fitting; Solve brake master cylinder structure in the past; Its fuel inlet fitting is directly connected to lubricating cup, causes oil circuit to stop up easily, technical problem that also can not oil return after piston lost efficacy.
The technological scheme that the utility model adopts is:
A kind of double-piston brake master cylinder with repairing ring of stretched fuel inlet fitting comprises cylinder body: the cylinder body middle part has the grease chamber, and the right part, grease chamber is equipped with protective housing; The protective housing left end is equipped with the back piston assembly, is set with main apron on the back piston assembly right-hand member outer wall, and back piston assembly left end is equipped with rear spring; The rear spring left side is equipped with the secondary piston assembly, is set with the back packing ring on the secondary piston assembly right-hand member outer wall, is set with repairing ring, D shape seal ring and preceding packing ring on the secondary piston assembly left end outer wall; Preceding packing ring left end is equipped with holddown spring; The holddown spring left end is equipped with spring seat, and the spring seat left end is equipped with front spring, and the cylinder body left end is equipped with blind nut; Between blind nut and the cylinder body copper washer is installed, the front spring left end leans on blind nut; Be separately installed with stop screw on the cylinder body of secondary piston assembly and back piston assembly lower end, the stop screw pad also is installed between stop screw and the cylinder body; The secondary piston assembly is provided with fuel inlet fitting respectively with corresponding cylinder body place, back piston assembly upper end, and fuel inlet fitting and cylinder body contacting point are equipped with the oil-feed seal ring, and fuel inlet fitting is set with dust cap outward; Each fuel inlet fitting limit, cylinder body upper end all has delivery connection, and delivery connection is equipped with dust plug outward.
Said fuel inlet fitting and delivery connection all are connected to the grease chamber through oil duct.
Compared with prior art, the beneficial effect of the utility model is:
The utility model is through being provided with the fuel inlet fitting of stretched in the cylinder body upper end, the oil circuit that can effectively extend make it to be difficult for stopping up, and oil return is effective, has improved the working life of product.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the utility model side sectional view.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is done further explain through embodiment:
A kind of double-piston brake master cylinder with repairing ring of stretched fuel inlet fitting comprises cylinder body 1: cylinder body 1 middle part has the grease chamber, and the right part, grease chamber is equipped with protective housing 20; Protective housing 20 left ends are equipped with back piston assembly 18, are set with main apron 19 on the back piston assembly 18 right-hand member outer walls, and back piston assembly 18 left ends are equipped with rear spring 14; Rear spring 14 left sides are equipped with secondary piston assembly 7, are set with back packing ring 13 on the secondary piston assembly 7 right-hand member outer walls, are set with repairing ring 12, D shape seal ring 13 and preceding packing ring 10 on the secondary piston assembly 7 left end outer walls; Preceding packing ring 10 left ends are equipped with holddown spring 9; Holddown spring 9 left ends are equipped with spring seat 8, and spring seat 8 left ends are equipped with front spring 7, and cylinder body 1 left end is equipped with blind nut 5; Between blind nut 5 and the cylinder body 1 copper washer 4 is installed, front spring 7 left ends lean on blind nut 5; Be separately installed with stop screw 2 on the cylinder body 1 of secondary piston assembly 7 and back piston assembly 18 lower ends, between stop screw 2 and the cylinder body 1 stop screw pad 3 be installed also; Cylinder body 1 place that secondary piston assembly 7 is corresponding with back piston assembly 18 upper ends is provided with fuel inlet fitting 16 respectively, and fuel inlet fitting 16 is equipped with oil-feed seal ring 17 with cylinder body 1 contacting point, the fuel inlet fitting 16 outer dust caps 15 that are set with; Each fuel inlet fitting 16 limit, cylinder body 1 upper end all have delivery connection, and delivery connection is equipped with dust plug 21 outward, and fuel inlet fitting 16 all is connected to the grease chamber through oil duct with delivery connection.
The foregoing description is merely the preferred implementation of the utility model, and in addition, the utility model can also have other implementations.Need to prove that under the prerequisite that does not break away from the utility model design, any conspicuous improvement and modification all should fall within the protection domain of the utility model.
Claims (2)
1. the double-piston brake master cylinder with repairing ring of a stretched fuel inlet fitting comprises cylinder body, it is characterized in that: the cylinder body middle part has the grease chamber; The right part, grease chamber is equipped with protective housing, and the protective housing left end is equipped with the back piston assembly, is set with main apron on the back piston assembly right-hand member outer wall; Back piston assembly left end is equipped with rear spring, and the rear spring left side is equipped with the secondary piston assembly, is set with the back packing ring on the secondary piston assembly right-hand member outer wall; Be set with repairing ring, D shape seal ring and preceding packing ring on the secondary piston assembly left end outer wall, preceding packing ring left end is equipped with holddown spring, and the holddown spring left end is equipped with spring seat; The spring seat left end is equipped with front spring; The cylinder body left end is equipped with blind nut, between blind nut and the cylinder body copper washer is installed, and the front spring left end leans on blind nut; Be separately installed with stop screw on the cylinder body of secondary piston assembly and back piston assembly lower end, the stop screw pad also is installed between stop screw and the cylinder body; The secondary piston assembly is provided with fuel inlet fitting respectively with corresponding cylinder body place, back piston assembly upper end, and fuel inlet fitting and cylinder body contacting point are equipped with the oil-feed seal ring, and fuel inlet fitting is set with dust cap outward; Each fuel inlet fitting limit, cylinder body upper end all has delivery connection, and delivery connection is equipped with dust plug outward.
2. the double-piston brake master cylinder with repairing ring of stretched fuel inlet fitting according to claim 1, it is characterized in that: said fuel inlet fitting and delivery connection all are connected to the grease chamber through oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203617838U CN202301632U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with extended oil inlet joints and oil makeup ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203617838U CN202301632U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with extended oil inlet joints and oil makeup ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301632U true CN202301632U (en) | 2012-07-04 |
Family
ID=46370538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203617838U Expired - Fee Related CN202301632U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with extended oil inlet joints and oil makeup ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364150A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Dual piston brake main cylinder with extending type oil feeding joints and oil supplementing ring |
-
2011
- 2011-09-24 CN CN2011203617838U patent/CN202301632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364150A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Dual piston brake main cylinder with extending type oil feeding joints and oil supplementing ring |
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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: 20120704 Termination date: 20120924 |