CN102410321A - Two-piston brake master cylinder with stop bowls in two oil storage cups - Google Patents
Two-piston brake master cylinder with stop bowls in two oil storage cups Download PDFInfo
- Publication number
- CN102410321A CN102410321A CN2011102873047A CN201110287304A CN102410321A CN 102410321 A CN102410321 A CN 102410321A CN 2011102873047 A CN2011102873047 A CN 2011102873047A CN 201110287304 A CN201110287304 A CN 201110287304A CN 102410321 A CN102410321 A CN 102410321A
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- oil storage
- piston assembly
- oil
- cylinder body
- left end
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Abstract
The invention discloses a two-piston brake master cylinder with stop bowls in two oil storage cups. The two-piston brake master cylinder with the stop bowls in the two oil storage cups comprises a cylinder body, wherein an oil chamber is formed on the middle part of the cylinder body; a rear piston assembly is arranged at the right end of the oil chamber; a rear spring is arranged at the left end of the rear piston assembly; a front piston assembly is arranged at the left end of the rear spring; a front spring is arranged at the left end of the front piston assembly; an oil inlet valve base is arranged at the left end of the front spring; an oil inlet valve core is arranged in the oil inlet valve base; an oil inlet valve spring and an oil inlet valve washer are arranged between the oil inlet valve core and the oil inlet valve base; an oil inlet connector is arranged at the upper end of the cylinder body; a front cavity oil storage cup and a back cavity oil storage cup are arranged outside the oil inlet connector; oil storage cup covers are arranged on the top parts of the front cavity oil storage cup and the back cavity oil storage cup; dust-proof covers are arranged at the upper ends of the oil storage cup covers; and the stop bowls are arranged at the lower ends of the oil storage cup covers. The stop bowls are arranged in the front oil storage cup and the back oil storage cup on the top of the cylinder body, so that the two-piston brake master cylinder with the stop bowls in the two oil storage cups can effectively prevent external large dust particles and solid impurities from falling into the cups and being mixed with braking fluid, and the integral service life of the two-piston brake master cylinder with the stop bowls in the two oil storage cups is prolonged.
Description
Technical field:
The present invention relates to the auto parts and components field, relate in particular to and have the only double-piston brake master cylinder of thing bowl in a kind of pair of oil storage cup.
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 upper end is equipped with oil storage cup, does not have safety installations mostly, and in the long-term using process, outside large particle dust drops with solid sundries in the cup easily, mixes with brake fluid, causes the oil circuit obstruction.Therefore imagination provides a kind of equipment to solve this problem.
Summary of the invention:
The object of the invention just provides has the only double-piston brake master cylinder of thing bowl in a kind of pair of oil storage cup; Solve brake master cylinder structure in the past, its upper end is equipped with oil storage cup, does not have safety installations mostly; In the long-term using process; Outside large particle dust drops with solid sundries in the cup easily, mixes with brake fluid, causes the technical problem of oil circuit obstruction.
The technological scheme that the present invention adopts is:
Have the only double-piston brake master 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 hole; The circlip for hole left end is equipped with the back piston assembly, and back piston assembly right-hand member is set with the secondary apron in back outward, and back piston assembly left end is set with oil return sheet, the main apron of spring seat and back outward; Back 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 oiling valve spring and oiling 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 back 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 back piston assembly place is equipped with the back cavity oil storage cup outward, and front/back cavity oil storage cup and fuel inlet fitting contacting point all are equipped with the lubricating cup seal ring, and the lubricating cup fixing bolt all is installed between front/back cavity oil storage cup and the cylinder body; Copper backing all is installed between lubricating cup fixing bolt 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 dust cover, and oil storage bowl cover lower end is provided with only thing bowl; 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, back piston assembly corresponding part are respectively arranged with down delivery connection, in the following delivery connection dust plug are installed, and the cylinder body side also is provided with the side delivery connection, and side delivery connection and cylinder body contacting point are equipped with copper backing.
Said fuel inlet fitting and delivery connection all are connected to the grease chamber through oil duct.
Compared with prior art, beneficial effect of the present invention is:
The present invention can prevent effectively that through the structure of ending the thing bowl is installed outside large particle dust and solid sundries from dropping into mixing with brake fluid in the cup easily, increased the product bulk life time in the forward and backward pair of oil storage cup at cylinder body top.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is texture edge sectional view of the present invention.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is done further explain through embodiment:
Have the only double-piston brake master cylinder of thing bowl 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 hole 24; Circlip for hole 24 left ends are equipped with back piston assembly 19, and back piston assembly 19 right-hand members are set with the secondary apron 23 in back outward, and back piston assembly 19 left ends are set with oil return sheet 22, the main apron 21 of spring seat 20 and back outward; Back 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 oiling valve spring 6 and oiling 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 back 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 back piston assembly place is equipped with back cavity oil storage cup 29 outward, and front/back cavity oil storage cup and fuel inlet fitting contacting point all are equipped with lubricating cup seal ring 10, and lubricating cup fixing bolt 12 all is installed between front/back cavity oil storage cup and the cylinder body; Copper backing 11 all is installed between lubricating cup fixing bolt 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 dust cover 14, and oil storage bowl cover 16 lower ends are provided with only thing bowl 15; 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, back piston assembly corresponding part are respectively arranged with down delivery connection, in the following delivery connection dust plug 2 are installed, and cylinder body 1 side also is provided with side delivery connection 27, and side delivery connection 27 is equipped with copper backing 28 with cylinder body 1 contacting point; Fuel inlet fitting and delivery connection 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 only double-piston brake master cylinder of thing bowl 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 hole, and the circlip for hole left end is equipped with the back piston assembly, and back piston assembly right-hand member is set with the secondary apron in back outward; Back piston assembly left end is set with oil return sheet, the main apron of spring seat and back outward, and back 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, oiling valve spring and oiling 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 back 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 back piston assembly place is equipped with the back cavity oil storage cup outward, and front/back cavity oil storage cup and fuel inlet fitting contacting point all are equipped with the lubricating cup seal ring, and the lubricating cup fixing bolt all is installed between front/back cavity oil storage cup and the cylinder body; Copper backing all is installed between lubricating cup fixing bolt 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 dust cover, and oil storage bowl cover lower end is provided with only thing bowl; 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, back piston assembly corresponding part are respectively arranged with down delivery connection, in the following delivery connection dust plug are installed, and the cylinder body side also is provided with the side delivery connection, and side delivery connection and cylinder body contacting point are equipped with copper backing.
2. have the only double-piston brake master cylinder of thing bowl in pair oil storage cup 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 |
|---|---|---|---|
| CN2011102873047A CN102410321A (en) | 2011-09-24 | 2011-09-24 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102873047A CN102410321A (en) | 2011-09-24 | 2011-09-24 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410321A true CN102410321A (en) | 2012-04-11 |
Family
ID=45912570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102873047A Pending CN102410321A (en) | 2011-09-24 | 2011-09-24 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182944A (en) * | 2022-06-10 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Intermediate shaft brake sealing and positioning structure and intermediate shaft brake |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635024A (en) * | 1970-01-07 | 1972-01-18 | Gen Motors Corp | Master cylinder assembly |
| US4152897A (en) * | 1976-03-16 | 1979-05-08 | Wagner Electric Corporation | Tandem brake master cylinder |
| JPS62179866U (en) * | 1986-05-07 | 1987-11-14 | ||
| GB2216207A (en) * | 1988-04-04 | 1989-10-04 | Automotive Products Plc | Brake failure warning |
| US5016442A (en) * | 1989-07-27 | 1991-05-21 | Allied-Signal Inc. | Master cylinder with fluid level and pressure failure detector |
| US5943863A (en) * | 1997-10-31 | 1999-08-31 | Robert Bosch Technology Corporation | Center port compensation valving for a master cylinder |
| CN2620108Y (en) * | 2003-05-07 | 2004-06-09 | 陈利祥 | Double-cavity braking general pump for automobile |
| JP2010149844A (en) * | 2008-12-14 | 2010-07-08 | Robert Bosch Gmbh | Dead stroke reducing valve |
| 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 |
| CN202301631U (en) * | 2011-09-24 | 2012-07-04 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder provided with stopping thing bowl in double oil storage cup |
-
2011
- 2011-09-24 CN CN2011102873047A patent/CN102410321A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3635024A (en) * | 1970-01-07 | 1972-01-18 | Gen Motors Corp | Master cylinder assembly |
| US4152897A (en) * | 1976-03-16 | 1979-05-08 | Wagner Electric Corporation | Tandem brake master cylinder |
| JPS62179866U (en) * | 1986-05-07 | 1987-11-14 | ||
| GB2216207A (en) * | 1988-04-04 | 1989-10-04 | Automotive Products Plc | Brake failure warning |
| US5016442A (en) * | 1989-07-27 | 1991-05-21 | Allied-Signal Inc. | Master cylinder with fluid level and pressure failure detector |
| US5943863A (en) * | 1997-10-31 | 1999-08-31 | Robert Bosch Technology Corporation | Center port compensation valving for a master cylinder |
| CN2620108Y (en) * | 2003-05-07 | 2004-06-09 | 陈利祥 | Double-cavity braking general pump for automobile |
| JP2010149844A (en) * | 2008-12-14 | 2010-07-08 | Robert Bosch Gmbh | Dead stroke reducing valve |
| 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 |
| CN202301631U (en) * | 2011-09-24 | 2012-07-04 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder provided with stopping thing bowl in double oil storage cup |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182944A (en) * | 2022-06-10 | 2022-10-14 | 陕西法士特齿轮有限责任公司 | Intermediate shaft brake sealing and positioning structure and intermediate shaft brake |
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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: 20120411 |