CN102367851B - The oil outlet mechanism of brake master cylinder - Google Patents
The oil outlet mechanism of brake master cylinder Download PDFInfo
- Publication number
- CN102367851B CN102367851B CN201110310382.4A CN201110310382A CN102367851B CN 102367851 B CN102367851 B CN 102367851B CN 201110310382 A CN201110310382 A CN 201110310382A CN 102367851 B CN102367851 B CN 102367851B
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- China
- Prior art keywords
- hole
- spool
- oil outlet
- joint
- grease chamber
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- 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 invention discloses a kind of oil outlet mechanism of brake master cylinder, include cylinder body, grease chamber, oil outlet and valve body, in valve body, be provided with step hole, in step hole, be provided with the spool be slidably matched with step hole inwall, the bottom of spool is provided with T-shaped flap and valve seat, and T-shaped flap pressure is put on valve seat; Axial hole is provided with in spool, the end of valve body is provided with joint, and on the outer wall of spool, cover has spring, and one end of spring leans on the step surface of step hole, the other end of spring leans the inner side of ring-shaped step in the middle part of spool, and the outside of ring-shaped step leans the inner side at joint; The upper end of spool extends in the through hole in the middle part of joint, has push rod to be from outer to inner also pressed on the conical surface of axial hole end on top through through hole.The invention solves the problem that the oil when inside, grease chamber and ambient pressure reach equal threshold state in grease chamber can not arranged, make a fuel-displaced process can not have influence on next oil-feed process, ensured the continuity of brake master cylinder work.
Description
Technical field
The present invention relates to automotive brake field, be specifically related to a kind of oil outlet mechanism of brake master cylinder.
Background technique
Brake master cylinder generally relies on pressurized air or oil to enter master cylinder, and promoting a set of base apparatuses such as piston and play braking action, is a part of automotive brake, for generation of the power hindering vehicle movement or movement tendency, i.e. and braking force.
The oil outlet of existing brake master cylinder is mostly straight tube shape, utilizes the inner oil of releasing with extraneous oil pressure difference in grease chamber in grease chamber, thus reaches fuel-displaced object.But once inside, grease chamber reaches equal threshold state with ambient pressure, the oil in grease chamber is just no longer discharged, and causes in grease chamber and has remaining oil, thus have impact on the next working procedure of brake master cylinder.
Summary of the invention
The object of this invention is to provide a kind of oil outlet mechanism of brake master cylinder, at oil outlet place, unidirectional oil discharging device is set, carry out the fuel-displaced work of brake master cylinder, solve the problem that the oil when inside, grease chamber and ambient pressure reach equal threshold state in grease chamber can not arranged.
Technological scheme of the present invention is as follows:
A kind of oil outlet mechanism of brake master cylinder, include cylinder body, grease chamber is provided with in described cylinder body, the outer wall of cylinder body is respectively equipped with the upper and lower oil outlet be connected with grease chamber, it is characterized in that: described lower oil outlet is provided with valve body, the step hole be communicated with lower oil outlet is provided with in described valve body, the spool be slidably matched with step hole inwall is provided with in described step hole, the bottom of described spool is provided with T-shaped flap, described step hole bottom port place is provided with valve seat, and described T-shaped flap pressure is put on valve seat;
Axial hole is provided with in described spool, both sides bottom spool are provided with the oil-through hole be communicated with axial hole, the end of described valve body is installed and is sealed with joint, on the outer wall of described spool, cover has spring, in the middle part of spool, outer wall is provided with ring-shaped step, one end of described spring leans on the step surface of step hole, and the other end of spring leans the inner side at ring-shaped step, and the outside of ring-shaped step leans the inner side at joint; The middle part of described joint is provided with through hole, the upper end of described spool extends in through hole, the end of described axial hole is provided with conical surface, there is push rod to be from outer to inner also pressed on the conical surface of axial hole end in top through the through hole in the middle part of joint, in described push rod, be provided with the oil outlet be communicated with axial hole.
The oil outlet mechanism of described brake master cylinder, is characterized in that: the oral area of described upper oil outlet is provided with dust plug.
The oil outlet mechanism of described brake master cylinder, is characterized in that: the oral area of described joint middle through-hole is provided with dust plug.
Beneficial effect of the present invention:
The present invention is rational in infrastructure, at oil outlet place, unidirectional oil discharging device is set, carry out the fuel-displaced work of brake master cylinder, solve the problem that the oil when inside, grease chamber and ambient pressure reach equal threshold state in grease chamber can not arranged, make a fuel-displaced process can not have influence on next oil-feed process, ensure the continuity of brake master cylinder work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
See Fig. 1, a kind of oil outlet mechanism of brake master cylinder, include cylinder body 1, in cylinder body 1, be provided with grease chamber 2, the outer wall of cylinder body 1 is respectively equipped with the upper and lower oil outlet 4,15 be connected with grease chamber 2, lower oil outlet 15 is provided with valve body 7, be provided with the step hole 14 be communicated with lower oil outlet 15 in valve body 7, be provided with the spool 8 be slidably matched with the inwall of step hole 14 in step hole 14, the bottom of spool 8 is provided with T-shaped flap 3, step hole 14 bottom port place is provided with valve seat 5, and T-shaped flap 3 pressure is put on valve seat 5;
Axial hole 6 is provided with in spool 8, both sides bottom spool 8 are provided with the oil-through hole be communicated with axial hole 6, the end of valve body 7 is installed and is sealed with joint 10, on the outer wall of spool 8, cover has spring 13, in the middle part of spool 8, outer wall is provided with ring-shaped step 9, one end of spring 13 leans on the step surface of step hole 14, and the other end of spring 13 leans in the inner side of ring-shaped step 9, and the outside of ring-shaped step 9 leans in the inner side of joint 10; The middle part of joint 10 is provided with through hole 16, the upper end of spool 8 extends in through hole 16, the end of axial hole 6 is provided with conical surface, there is push rod 11 to be from outer to inner also pressed on the conical surface of axial hole 6 end in top through the through hole 16 in the middle part of joint 10, in push rod 11, be provided with the oil outlet 12 be communicated with axial hole 6.
The oral area of upper oil outlet 4 is provided with dust plug 17; The oral area of joint 10 middle through-hole 16 is provided with dust plug.
When carrying out fuel-displaced operation, push rod 11 moves inward, under the effect of pressure on top surface, move in spool 8, spring 13 compresses, and T-shaped flap 3 lifts off a seat 5, this at present oil outlet 15, oil-through hole, form oil discharge passage between axial hole 6 and oil outlet 12, the oil in grease chamber 2 is discharged through oil discharge passage; When push rod 11 is outwards mobile, spring 13 is upheld and is resetted, and T-shaped flap 3 is again pressed and put on valve seat 5, and the lower oil outlet 15 of blocking-up, oil-through hole, the oil discharge passage formed between axial hole 6 and oil outlet 12, now fuel-displaced operation completes.
In the present invention, upper oil outlet 4, as subsequent use, can utilize oil outlet 4 fuel-displaced when blocking occurs oil outlet 15 instantly, also can arrange the device same with lower oil outlet 15 at upper oil outlet 4, synchronously complete fuel-displaced operation by upper and lower oil outlet 4,15.
Claims (1)
1. the oil outlet mechanism of a brake master cylinder, include cylinder body, grease chamber is provided with in described cylinder body, the outer wall of cylinder body is respectively equipped with the upper and lower oil outlet be connected with grease chamber, it is characterized in that: described lower oil outlet is provided with valve body, the step hole be communicated with lower oil outlet is provided with in described valve body, the spool be slidably matched with step hole inwall is provided with in described step hole, the bottom of described spool is provided with T-shaped flap, described step hole bottom port place is provided with valve seat, and described T-shaped flap pressure is put on valve seat;
Axial hole is provided with in described spool, both sides bottom spool are provided with the oil-through hole be communicated with axial hole, the end of described valve body is installed and is sealed with joint, on the outer wall of described spool, cover has spring, in the middle part of spool, outer wall is provided with ring-shaped step, one end of described spring leans on the step surface of step hole, and the other end of spring leans the inner side at ring-shaped step, and the outside of ring-shaped step leans the inner side at joint; The middle part of described joint is provided with through hole, the upper end of described spool extends in through hole, the end of described axial hole is provided with conical surface, there is push rod to be from outer to inner also pressed on the conical surface of axial hole end in top through the through hole in the middle part of joint, in described push rod, be provided with the oil outlet be communicated with axial hole;
The oral area of described upper oil outlet is provided with dust plug; The oral area of described joint middle through-hole is provided with dust plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110310382.4A CN102367851B (en) | 2011-10-14 | 2011-10-14 | The oil outlet mechanism of brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110310382.4A CN102367851B (en) | 2011-10-14 | 2011-10-14 | The oil outlet mechanism of brake master cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102367851A CN102367851A (en) | 2012-03-07 |
| CN102367851B true CN102367851B (en) | 2015-09-09 |
Family
ID=45760438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110310382.4A Expired - Fee Related CN102367851B (en) | 2011-10-14 | 2011-10-14 | The oil outlet mechanism of brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102367851B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104481A (en) * | 1986-03-04 | 1988-05-04 | 桥梁产品公司 | The improvement of valve and automatic assembly method thereof |
| EP0674116A2 (en) * | 1994-03-22 | 1995-09-27 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Brake cylinder for railway vehicles with hand brake device |
| CN201521582U (en) * | 2009-10-26 | 2010-07-07 | 芜湖聚达汽车零部件有限公司 | Double-brake master cylinder assembly |
| CN201626392U (en) * | 2010-02-09 | 2010-11-10 | 芜湖稳乐制动系统有限公司 | Brake master pump structure capable of preventing backflow |
| CN201777233U (en) * | 2010-07-09 | 2011-03-30 | 芜湖玉泰汽车制动有限公司 | Brake master cylinder with auxiliary steering function |
| CN202349041U (en) * | 2011-10-14 | 2012-07-25 | 芜湖众发汽车制动系统有限公司 | Oil discharging mechanism of brake master cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010569A1 (en) * | 2008-02-22 | 2009-09-10 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Brake cylinder for pneumatically operated vehicle brakes |
-
2011
- 2011-10-14 CN CN201110310382.4A patent/CN102367851B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104481A (en) * | 1986-03-04 | 1988-05-04 | 桥梁产品公司 | The improvement of valve and automatic assembly method thereof |
| EP0674116A2 (en) * | 1994-03-22 | 1995-09-27 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Brake cylinder for railway vehicles with hand brake device |
| CN201521582U (en) * | 2009-10-26 | 2010-07-07 | 芜湖聚达汽车零部件有限公司 | Double-brake master cylinder assembly |
| CN201626392U (en) * | 2010-02-09 | 2010-11-10 | 芜湖稳乐制动系统有限公司 | Brake master pump structure capable of preventing backflow |
| CN201777233U (en) * | 2010-07-09 | 2011-03-30 | 芜湖玉泰汽车制动有限公司 | Brake master cylinder with auxiliary steering function |
| CN202349041U (en) * | 2011-10-14 | 2012-07-25 | 芜湖众发汽车制动系统有限公司 | Oil discharging mechanism of brake master cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102367851A (en) | 2012-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20171014 |