CN102363425A - Double-piston brake master cylinder with dustproof covers in double oil storage cups - Google Patents
Double-piston brake master cylinder with dustproof covers in double oil storage cups Download PDFInfo
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- CN102363425A CN102363425A CN2011102873051A CN201110287305A CN102363425A CN 102363425 A CN102363425 A CN 102363425A CN 2011102873051 A CN2011102873051 A CN 2011102873051A CN 201110287305 A CN201110287305 A CN 201110287305A CN 102363425 A CN102363425 A CN 102363425A
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- piston assembly
- oil storage
- cylinder body
- oil
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Abstract
The invention discloses a double-piston brake master cylinder with dustproof covers in double oil storage cups, which comprises a cylinder body; the middle of the cylinder body is provided with an oil chamber, a rear piston assembly is mounted in the right end of the oil chamber, a rear spring is mounted on the left end of the rear piston assembly, a front piston assembly is mounted on the left end of the rear spring, a front spring is mounted on the left end of the front piston assembly, an oil inlet valve seat is mounted on the left end of the front spring, an oil inlet valve spool is mounted in the oil inlet valve seat, and an oil inlet valve spring and a rubber oil inlet valve washer are mounted between the oil inlet valve spool and the oil inlet valve seat; oil inlet connectors are respectively arranged on the upper end of the cylinder body, a front chamber oil storage cup and a rear chamber oil storage cup are mounted outside the oil inlet connectors, oil storage cup covers are respectively mounted on the tops of the front chamber oil storage cup and the rear chamber oil storage cup, and the dustproof covers are arranged on the upper ends of the oil storage cup covers. Since the dustproof covers are mounted in the front chamber oil storage cup and the rear chamber oil storage cup on the top of the cylinder body, outside large dust particles and solid foreign matters can be effectively prevented from easily falling into the cups to mix with brake fluid, and thereby the overall service life of the product is prolonged.
Description
Technical field:
The present invention relates to the auto parts and components field, relate 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.
Summary of the invention:
The object of the invention 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 present invention 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, beneficial effect of the present invention is:
The present invention installs 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 structural representation of the present invention;
Accompanying drawing 2 is texture edge cutaway view of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing, the present invention 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 preferred implementation of the present invention, and in addition, the present invention can also have other implementations.Need to prove that under the prerequisite that does not break away from the present invention's design, any conspicuous improvement and modification all should fall within protection scope of the present invention.
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 only double-piston master brake cylinder of thing bowl 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 |
|---|---|---|---|
| CN2011102873051A CN102363425A (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102873051A CN102363425A (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102363425A true CN102363425A (en) | 2012-02-29 |
Family
ID=45690029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102873051A Pending CN102363425A (en) | 2011-09-24 | 2011-09-24 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102363425A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149761A (en) * | 2014-07-19 | 2014-11-19 | 芜湖恒坤汽车部件有限公司 | Brake master pump with built-in one-way valve |
| CN104176030A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Pump body assembly for automobile braking |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152897A (en) * | 1976-03-16 | 1979-05-08 | Wagner Electric Corporation | Tandem brake master cylinder |
| US5943863A (en) * | 1997-10-31 | 1999-08-31 | Robert Bosch Technology Corporation | Center port compensation valving for a master cylinder |
| CN201751254U (en) * | 2010-06-30 | 2011-02-23 | 厦门永裕机械工业有限公司 | Improved structure for brake master cylinder |
| CN202368557U (en) * | 2011-09-24 | 2012-08-08 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dust covers in double oil cups |
-
2011
- 2011-09-24 CN CN2011102873051A patent/CN102363425A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152897A (en) * | 1976-03-16 | 1979-05-08 | Wagner Electric Corporation | Tandem brake master cylinder |
| US5943863A (en) * | 1997-10-31 | 1999-08-31 | Robert Bosch Technology Corporation | Center port compensation valving for a master cylinder |
| CN201751254U (en) * | 2010-06-30 | 2011-02-23 | 厦门永裕机械工业有限公司 | Improved structure for brake master cylinder |
| CN202368557U (en) * | 2011-09-24 | 2012-08-08 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dust covers in double oil cups |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149761A (en) * | 2014-07-19 | 2014-11-19 | 芜湖恒坤汽车部件有限公司 | Brake master pump with built-in one-way valve |
| CN104176030A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Pump body assembly for automobile braking |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120229 |