CN2439384Y - Double loop and double tube braking general pump - Google Patents
Double loop and double tube braking general pump Download PDFInfo
- Publication number
- CN2439384Y CN2439384Y CN 00218943 CN00218943U CN2439384Y CN 2439384 Y CN2439384 Y CN 2439384Y CN 00218943 CN00218943 CN 00218943 CN 00218943 U CN00218943 U CN 00218943U CN 2439384 Y CN2439384 Y CN 2439384Y
- Authority
- CN
- China
- Prior art keywords
- respectively equipped
- pump housing
- fill valve
- piston
- oil 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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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a double loop and double tube braking general pump which is composed of a general pump body, wherein, the pump body is respectively connected with a front and a rear oil inlet pipes. A front and a rear pistons and a front and a rear cavities are arranged in the pump body. The front and the rear pistons are respectively provided with two main leather loops and two auxiliary leather loops. The front part of each piston is also provided with an oil-compensating valve. The oil-compensating valves are connected with the oil inlet pipes through oil inlet holes. The rear part of each oil-compensating valve is contacted with a gag lever post. The front and rear cavities are respectively provided with oil outlet holes, and are also provided with reset springs. The utility model is suitable for popular type hydraulic braking automobiles and hydraulic braking automobiles with vacuum boosters.
Description
The utility model relates to a kind of two circle dual line braking master cylinder.
The dual line braking master cylinder that uses on automobile at present all is to adopt by push rod to promote primary piston, and piston forward moves.Piston master apron slips over back cavity repairing hole, the back cavity oil pressure is raise, brake solution is gone out from the back cavity oil outlet, arrives the automobile back wheel wheel cylinder, braking rear-wheel, simultaneously, under the effect of back cavity oil pressure, secondary piston is moved forward, the ante-chamber oil pressure raises, brake solution is gone out from the ante-chamber oil outlet, reaches the effect of braking front-wheel.The shortcoming of this master brake cylinder is: when the forward position of piston apron moved past the repairing hole, front/back cavity just produced pressure, at this moment, oil pressure can be with main apron to repairing hole external pressure, main apron rubs on the repairing hole before and after making, and soon by abrasion, influences the service life of master brake cylinder.
The purpose of this utility model is at above-mentioned shortcoming, and a kind of good braking effect is provided, two circle dual line braking master cylinders of long service life.
The utility model is two circle dual line braking master cylinders, mainly form by the master brake cylinder pump housing, the pump housing connects the front/back cavity oil inlet, be provided with forward and backward piston in the pump housing, primary piston is set in the guide ring at pump housing rear portion, the front portion of forward and backward piston is respectively equipped with Fill valve, and Fill valve communicates with fuel feed hole, and the Fill valve rear portion also is provided with position-limited lever.Be respectively equipped with 2 main aprons and secondary apron on the piston of front and back, also be provided with forward and backward cavity in the pump housing, be provided with piston reset spring in the cavity, also be respectively equipped with forward and backward oil outlet in the forward and backward cavity, oil inlet is to be connected with Fill valve by fuel feed hole.
The utility model compared with prior art has following obvious advantage.The one, increase a main apron and secondary apron on the piston, doubled its service life.The 2nd, the repairing pore structure that changes the traditional braking master cylinder is a Fill valve, has reduced the abrasion of apron, makes its work sensitiveer reliable.
The utility model is applicable to the hydraulic braking automobile and the coventional type hydraulic braking automobile of band vacuum booster.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model integral structure cut-away view.
Fig. 2 is the another embodiment cut-away view of the utility model.
As shown in Figure 1, before, back cavity oil inlet 7,15 connect the master brake cylinder pump housing 1 respectively, the afterbody of the pump housing 1 is provided with guide ring 20, primary piston 21 is placed in the guide ring 20, also be provided with secondary piston 11 in the pump housing 1, front and back piston 11, be respectively equipped with two main aprons 6 on 21,17, also be provided with secondary apron 10 on the secondary piston 11, before, primary piston 11, Fill valve 5 before and after 21 front portion also is respectively equipped with, 18, before, back Fill valve 5, be respectively equipped with pull back spring 23 on 18,22, preceding Fill valve 5 communicates with oil inlet 7 by fuel feed hole 8, and back Fill valve 18 communicates with oil inlet 15 by fuel feed hole 16, and preceding Fill valve 5 rear portions contact with position-limited lever 9, back Fill valve 18 contacts with position-limited lever 19, before also being provided with in the pump housing 1, rear chamber 3,13, preceding, rear chamber 3, be respectively equipped with oil outlet 2 in 13,12, also be provided with retracing spring 4,14.The utility model is applicable to band vacuum booster hydraulic braking automobile.
Fig. 2 is the master brake cylinder that is applicable to coventional type hydraulic braking automobile, and primary piston 21 is placed in the pump housing 1.
Claims (2)
1. one kind pair is enclosed the dual line braking master cylinder, form by the master brake cylinder pump housing (1), before the pump housing (1) connects respectively, back cavity oil inlet (7), (15), before being respectively equipped with in the pump housing (1), primary piston (11), (21), primary piston (21) is set up in the guide ring (20) at the rear portion of being located at the pump housing (1), before also being respectively equipped with in the pump housing (1), rear chamber (3), (13), before, rear chamber (3), (13) be respectively equipped with oil outlet (2) in, (12), also be provided with piston reset spring (4), (14), it is characterized in that described front and back pistons (11), (21) be respectively equipped with 2 main aprons (6) on, (17), also be provided with 2 secondary aprons (10) on the secondary piston (11).
2. two circle dual line braking master cylinder according to claim 1, the front portion that it is characterized in that described front and back pistons (11), (21) also is respectively equipped with Fill valve (5), (18), forward and backward Fill valve (5), (18) contact with position-limited lever (9), (19) be located at thereafter respectively, be respectively equipped with pull back spring (23), (22) on forward and backward Fill valve (5), (18), preceding Fill valve (5) communicates with ante-chamber oil inlet (7) by fuel feed hole (8), and back Fill valve (18) communicates with back cavity oil inlet (15) by fuel feed hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218943 CN2439384Y (en) | 2000-08-23 | 2000-08-23 | Double loop and double tube braking general pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218943 CN2439384Y (en) | 2000-08-23 | 2000-08-23 | Double loop and double tube braking general pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2439384Y true CN2439384Y (en) | 2001-07-18 |
Family
ID=33584215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218943 Expired - Fee Related CN2439384Y (en) | 2000-08-23 | 2000-08-23 | Double loop and double tube braking general pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2439384Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338176A (en) * | 2011-09-22 | 2012-02-01 | 芜湖恒坤汽车部件有限公司 | Double-piston assembly of brake master cylinder |
| CN102363426A (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 front chamber oil storage cup and residual valves |
| CN102418759A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with double oil storage cups and residual valves |
| CN109969151A (en) * | 2019-04-30 | 2019-07-05 | 厦门永裕机械工业有限公司 | A kind of novel ladder shaft type master cylinder piston for saving production cost |
-
2000
- 2000-08-23 CN CN 00218943 patent/CN2439384Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338176A (en) * | 2011-09-22 | 2012-02-01 | 芜湖恒坤汽车部件有限公司 | Double-piston assembly of brake master cylinder |
| CN102363426A (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 front chamber oil storage cup and residual valves |
| CN102418759A (en) * | 2011-09-24 | 2012-04-18 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with double oil storage cups and residual valves |
| CN109969151A (en) * | 2019-04-30 | 2019-07-05 | 厦门永裕机械工业有限公司 | A kind of novel ladder shaft type master cylinder piston for saving production cost |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |