CN202368557U - Double-piston brake master cylinder with dust covers in double oil cups - Google Patents
Double-piston brake master cylinder with dust covers in double oil cups Download PDFInfo
- Publication number
- CN202368557U CN202368557U CN2011203617700U CN201120361770U CN202368557U CN 202368557 U CN202368557 U CN 202368557U CN 2011203617700 U CN2011203617700 U CN 2011203617700U CN 201120361770 U CN201120361770 U CN 201120361770U CN 202368557 U CN202368557 U CN 202368557U
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- Prior art keywords
- piston assembly
- cylinder body
- left end
- oil
- oil storage
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- Expired - Fee Related
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model discloses a double-piston brake master cylinder with dust covers in double oil cups. The double-piston brake master cylinder comprises a cylinder body; the middle of the cylinder body is provided with an oil chamber; the right end of the oil chamber is provided with a rear piston assembly; the left end of the rear piston assembly is provided with a rear spring; the left end of the rear spring is provided with a front piston assembly; the left end of the front piston assembly is provided with a front spring; the left end of the front spring is provided with an inlet valve seat; an inlet valve core is arranged in the inlet valve seat; an inlet valve spring and an inlet valve leather ring are arranged between the inlet valve core and the inlet valve seat; the upper end of the cylinder body is provided with inlet joints; a front-cavity oil cup and a rear-cavity oil cup are arranged outside the inlet joints; the tops of the front-cavity oil cup and the rear-cavity oil cup are provided with oil cup lids; and the upper ends of the oil cup lids are provided with the dust covers. By a structure that the dust covers are arranged in the front and rear oil cups on the top of the cylinder body, external large particle dust and solid impurities can be effectively prevented from falling into the cups and being mixed with a brake fluid, and the whole service life of a product is prolonged.
Description
Technical field:
The utility model relates to the auto parts and components field, relates in particular to the double-piston master brake cylinder that has cover of dust in a kind of pair of oil storage cup.
Background technology:
Master brake cylinder band vacuum booster assembly is that propulsion source as brake system exists basically, and it is that brake pedal force with chaufeur is converted into hydraulic coupling, and has certain power-assisted effect, is divided into single-piston, floating-caliper brake and dual Piston usually; Master brake cylinder structure in the past, its upper end is equipped with oil storage cup, does not have safety device mostly, and in the long-term use process, exterior bulky grain dust and solid sundries drop in the cup easily, mix with braking liquid, cause fuel clogging.Therefore imagination provides a kind of equipment to solve this problem.
The utility model content:
The purpose of the utility model just provides the double-piston master brake cylinder that has cover of dust in a kind of pair of oil storage cup; Solve master brake cylinder structure in the past, its upper end is equipped with oil storage cup, does not have safety device mostly; In the long-term use process; Exterior bulky grain dust and solid sundries drop in the cup easily, mix with braking liquid, cause the technical matters of fuel clogging.
The technical scheme that the utility model adopts is:
Have the only cover of dust master brake cylinder of thing bowl in a kind of pair of oil storage cup, comprise cylinder body: the cylinder body middle part has the grease chamber, and grease chamber's right-hand member is equipped with circlip for bore; The circlip for bore left end is equipped with the primary piston assembly, and primary piston assembly right-hand member is set with the secondary apron in back outward, and primary piston assembly left end is set with oil return sheet, the main apron of spring perch and back outward; Primary piston assembly left end is equipped with rear spring; The rear spring left end is equipped with the secondary piston assembly, secondary apron before secondary piston assembly right-hand member is set with outward, and secondary piston assembly left end is set with positioning seat outward; Secondary piston assembly left end is equipped with front spring; The front spring left end is equipped with the oil-feed valve seat, and the oil-feed spool is installed in the oil-feed valve seat, and inlet valve spring and inlet valve apron are installed between oil-feed spool and the oil-feed valve seat; The cylinder body upper end of secondary piston assembly left end and primary piston assembly top is respectively arranged with fuel inlet fitting; The fuel inlet fitting of secondary piston assembly left end is equipped with the ante-chamber oil storage cup outward; The fuel inlet fitting at primary piston assembly place is equipped with the back cavity oil storage cup outward; Front/back cavity oil storage cup and fuel inlet fitting contact position all are equipped with the lubricating cup seal ring, and the lubricating cup bolt of rear end plate all is installed between front/back cavity oil storage cup and the cylinder body, and copper backing all is installed between lubricating cup bolt of rear end plate and the cylinder body; Front/back cavity oil storage cup top all is equipped with the oil storage bowl cover, and oil storage cup covers end and is provided with cover of dust; The cylinder body side is equipped with stop screw, and the stop screw pad is installed between stop screw and the cylinder body; Secondary piston assembly and cylinder body lower end, primary piston assembly corresponding position are respectively arranged with down discharge outlet, in the following discharge outlet dust plug are installed, and the cylinder body side also is provided with the side discharge outlet, and side discharge outlet and cylinder body contact position are equipped with copper backing.
Said fuel inlet fitting and discharge outlet 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 installed the structure that cover of dust is installed through forward and backward pair of oil storage cup top at the cylinder body top, can prevent effectively that exterior bulky grain dust and solid sundries from dropping into mixing with braking liquid in the cup easily, increased the product bulk life time.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the utility model texture edge cutaway view.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is done further explain through embodiment:
Have the double-piston master brake cylinder of cover of dust in a kind of pair of oil storage cup, comprise cylinder body 1: cylinder body 1 middle part has the grease chamber, and grease chamber's right-hand member is equipped with circlip for bore 24; Circlip for bore 24 left ends are equipped with primary piston assembly 19, and primary piston assembly 19 right-hand members are set with the secondary apron 23 in back outward, and primary piston assembly 19 left ends are set with oil return sheet 22, the main apron 21 of spring perch 20 and back outward; Primary piston assembly 19 left ends are equipped with rear spring 18; Rear spring 18 left ends are equipped with secondary piston assembly 9, secondary apron 17 before secondary piston assembly 9 right-hand members are set with outward, and secondary piston assembly 9 left ends are set with positioning seat 3 outward; Secondary piston assembly 9 left ends are equipped with front spring 4; Front spring 4 left ends are equipped with oil-feed valve seat 5, and oil-feed spool 8 is installed in the oil-feed valve seat 5, and inlet valve spring 6 and inlet valve apron 7 are installed between oil-feed spool 8 and the oil-feed valve seat 5; The cylinder body upper end of secondary piston assembly left end and primary piston assembly top is respectively arranged with fuel inlet fitting; The fuel inlet fitting of secondary piston assembly left end is equipped with ante-chamber oil storage cup 13 outward; The fuel inlet fitting at primary piston assembly place is equipped with back cavity oil storage cup 15 outward; Front/back cavity oil storage cup and fuel inlet fitting contact position all are equipped with lubricating cup seal ring 10, and lubricating cup bolt of rear end plate 12 all is installed between front/back cavity oil storage cup and the cylinder body, and copper backing 11 all is installed between lubricating cup bolt of rear end plate and the cylinder body; Front/back cavity oil storage cup top all is equipped with oil storage bowl cover 16, and oil storage bowl cover 16 upper ends are provided with cover of dust 14; Cylinder body 1 side is equipped with stop screw 25, and stop screw pad 26 is installed between stop screw 25 and the cylinder body; Secondary piston assembly and cylinder body lower end, primary piston assembly corresponding position are respectively arranged with down discharge outlet, in the following discharge outlet dust plug 2 are installed, and cylinder body 1 side also is provided with side discharge outlet 27, and side discharge outlet 27 is equipped with copper backing 28 with cylinder body 1 contact position; Fuel inlet fitting and discharge outlet all are connected to the grease chamber through oil duct.
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. have the double-piston master brake cylinder of cover of dust in two oil storage cups, comprise cylinder body, it is characterized in that: the cylinder body middle part has the grease chamber; Grease chamber's right-hand member is equipped with circlip for bore, and the circlip for bore left end is equipped with the primary piston assembly, and primary piston assembly right-hand member is set with the secondary apron in back outward; Primary piston assembly left end is set with oil return sheet, the main apron of spring perch and back outward, and primary piston assembly left end is equipped with rear spring, and the rear spring left end is equipped with the secondary piston assembly; Secondary apron before secondary piston assembly right-hand member is set with outward; Secondary piston assembly left end is set with positioning seat outward, and secondary piston assembly left end is equipped with front spring, and the front spring left end is equipped with the oil-feed valve seat; The oil-feed spool is installed in the oil-feed valve seat, inlet valve spring and inlet valve apron are installed between oil-feed spool and the oil-feed valve seat; The cylinder body upper end of secondary piston assembly left end and primary piston assembly top is respectively arranged with fuel inlet fitting; The fuel inlet fitting of secondary piston assembly left end is equipped with the ante-chamber oil storage cup outward; The fuel inlet fitting at primary piston assembly place is equipped with the back cavity oil storage cup outward; Front/back cavity oil storage cup and fuel inlet fitting contact position all are equipped with the lubricating cup seal ring, and the lubricating cup bolt of rear end plate all is installed between front/back cavity oil storage cup and the cylinder body, and copper backing all is installed between lubricating cup bolt of rear end plate and the cylinder body; Front/back cavity oil storage cup top all is equipped with the oil storage bowl cover, and oil storage cup covers end and is provided with cover of dust; The cylinder body side is equipped with stop screw, and the stop screw pad is installed between stop screw and the cylinder body; Secondary piston assembly and cylinder body lower end, primary piston assembly corresponding position are respectively arranged with down discharge outlet, in the following discharge outlet dust plug are installed, and the cylinder body side also is provided with the side discharge outlet, and side discharge outlet and cylinder body contact position are equipped with copper backing.
2. have the double-piston master brake cylinder of cover of dust in pair oil storage cup according to claim 1, it is characterized in that: said fuel inlet fitting and discharge outlet all are connected to the grease chamber through oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203617700U CN202368557U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dust covers in double oil cups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203617700U CN202368557U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dust covers in double oil cups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368557U true CN202368557U (en) | 2012-08-08 |
Family
ID=46592273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203617700U Expired - Fee Related CN202368557U (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dust covers in double oil cups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363425A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
| CN103448705A (en) * | 2013-09-04 | 2013-12-18 | 浙江万向系统有限公司 | Brake master cylinder assembly |
-
2011
- 2011-09-24 CN CN2011203617700U patent/CN202368557U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363425A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
| CN103448705A (en) * | 2013-09-04 | 2013-12-18 | 浙江万向系统有限公司 | Brake master cylinder assembly |
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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: 20120808 Termination date: 20120924 |