CN201907494U - Hydraulic load sensing valve device capable of being safely controlled - Google Patents
Hydraulic load sensing valve device capable of being safely controlled Download PDFInfo
- Publication number
- CN201907494U CN201907494U CN2010206869107U CN201020686910U CN201907494U CN 201907494 U CN201907494 U CN 201907494U CN 2010206869107 U CN2010206869107 U CN 2010206869107U CN 201020686910 U CN201020686910 U CN 201020686910U CN 201907494 U CN201907494 U CN 201907494U
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- cylinder
- cavity
- plunger
- round platform
- load sensing
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- Expired - Fee Related
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Abstract
The utility model discloses a can safety control hydraulic pressure sense year valve gear, including the valve body that is equipped with inner chamber, first cavity and second cavity, be arranged in the inner chamber and the cover have the plunger of oil blanket, the lever of being connected with plunger one end, the one end of first cavity and second cavity all with the inner chamber intercommunication, the other end are back return circuit oil inlet and back return circuit oil-out respectively, the valve body still be equipped with one end with the third cavity of inner chamber intercommunication, the other end of third cavity are preceding return circuit oil inlet, the plunger is connected gradually by the cylinder and the round platform that have different diameters and constitutes, the cover has and is annular rubber valve on the third cylinder, the both sides of rubber valve all are equipped with a plurality of lugs and annular spacing limit, all overlap on first cylinder and the fifth cylinder have the oil blanket. The hydraulic load sensing device can still provide the maximum braking force for the rear axle when the front axle of the automobile fails to brake, has simple structure, small volume and convenient realization, and can be widely applied to automobile braking devices.
Description
Technical field
The utility model relates to brake device for car, particularly relates to a kind of hydraulic pressure load sensing valve device that can safety control.
Background technology
At present, in automobile oil pressure automatic system, often need to adopt hydraulic pressure load sensing valve device to come dynamic adjustments rear brake oil pressure, and then regulate rear-wheel braking force, prevent dangerous operating modes such as whipping.Can regulate the back axle braking force though device is carried in common hydraulic pressure sense, when the automobile front axle braking failure, when rear axle need be exported maximum braking force, hydraulic pressure load sensing valve device still carries out decompression work, reduces braking force, badly influences the safety of vehicle.
The utility model content
The purpose of this utility model is in order to overcome the deficiency of above-mentioned background technology, a kind of hydraulic pressure load sensing valve device that can safety control is provided, device is carried in this hydraulic pressure sense can be when the automobile front axle braking failure, and rear axle still can provide maximum braking force, and simple in structure, volume is little, realization is convenient.
The utility model provides a kind of hydraulic pressure load sensing valve device that can safety control, comprise and be provided with inner chamber, the valve body of first cavity and second cavity, be arranged in inner chamber and be with the oil sealed plunger, with plunger one end bonded assembly lever, wherein, one end of described first cavity and second cavity all is communicated with described inner chamber, the other end is respectively back loop oil inlet and loop, back oil outlet, described valve body also is provided with the 3rd cavity that an end is communicated with described inner chamber, the other end of described the 3rd cavity is the front loop oil inlet, described plunger is by first cylinder with different-diameter, first round platform, second cylinder, the 3rd cylinder, second round platform, the 3rd round platform, the 4th cylinder, the 4th round platform, the 5th cylinder, the 5th round platform, the 6th cylinder, the 6th round platform and the 7th cylinder, the 7th round platform connects and composes successively, be with rubber valve in the form of a ring on described the 3rd cylinder, wherein, the both sides of described rubber valve are equipped with a plurality of projections that contact with second column side wall with valve interior wall respectively and are provided with the annular stop limit of the control second round platform stroke, all are with described oil sealing on described first cylinder and the 5th cylinder.
In technique scheme, described a plurality of projections circumferentially are distributed on the both sides of described rubber valve.
In technique scheme, the internal diameter of described rubber valve is greater than the external diameter of described the 3rd cylinder.
In technique scheme, also be provided with push rod between described plunger and the lever, the two ends of described push rod are connected with plunger with lever respectively.
In technique scheme, an end of described push rod is provided with protruding cap, and push rod is connected with plunger by protruding cap.
Hydraulic pressure load sensing valve device that can safety control of the present utility model, have following beneficial effect: the repertoire that device not only has existing hydraulic pressure load sensing valve device is carried in this hydraulic pressure sense, and when front axle brake lost efficacy, can guarantee rear axle output maximum braking force, increase substantially vehicle safety.Have simultaneously simple in structure, volume is little, realize advantage easily.
Description of drawings
Fig. 1 is the utility model external structure scheme drawing;
Fig. 2 is the utility model inner structure cutaway view;
Fig. 3 is a rubber valve structural representation in the utility model;
Fig. 4 is that the A of Fig. 3 is to scheme drawing;
Fig. 5 is a piston structure scheme drawing in the utility model;
Fig. 6 is a B place partial enlarged drawing among Fig. 2.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Referring to Fig. 1 to Fig. 6, the hydraulic pressure load sensing valve device that the utility model can safety control comprises valve body 1, lever 2, push rod 3, oil sealing 4, plunger 5 and rubber valve 6.
Be provided with inner chamber 1-1, the first cavity 1-2, the second cavity 1-3 and the 3rd cavity 1-4 in the described valve body 1, wherein, the end of the first cavity 1-2, the second cavity 1-3 and the 3rd cavity 1-4 all is communicated with described inner chamber 1-1.The first cavity 1-2, the other end of the second cavity 1-3 and the 3rd cavity 1-4 is respectively back loop oil inlet 1-5, back loop oil outlet 1-6 and front loop oil inlet 1-7, plunger 5 is positioned at inner chamber 1-1, one end of plunger 5 links to each other with lever 2, in the present embodiment, the first cavity 1-2 and back loop oil inlet 1-5 are positioned at valve body 1 middle part, the 3rd cavity 1-4 and front loop oil inlet 1-7 are positioned at the end that valve body 1 deviates from lever 2, and the first cavity 1-2, back loop oil inlet 1-5, the 3rd cavity 1-4 and front loop oil inlet 1-7 all are positioned at a side of valve body 1, and the second cavity 1-3 and back loop oil outlet 1-6 are positioned at the centre of the first cavity 1-4 and the 3rd cavity 1-6 and are positioned at the opposite side of valve body 1.
Also be provided with push rod 3 between described plunger 5 and the lever 2, the two ends of push rod 3 are connected with plunger 5 with lever 2 respectively, in the present embodiment, are provided with protruding cap 3-1 with plunger 5 bonded assembly ends on the push rod 3, and push rod 3 is connected with plunger 5 by protruding cap 3-1.
The working process of described hydraulic pressure load sensing valve device that can safety control is as follows:
One, before front loop lost efficacy: the high pressure oil from front loop injected the 3rd cavity 1-4 by front loop oil inlet 1-7, and plunger 5 is produced pressure F1, and described pressure F1 is towards lever 2.The signal that lever 2 transmits from vehicle load acts on the plunger 5 by push rod 3, and plunger 5 is produced pressure F2, and described pressure F2 is opposite with pressure F1 direction.High pressure oil from the loop, back enters the first cavity 1-2 by back loop oil inlet 1-5, and plunger 5 is produced pressure F3, and described pressure F3 is identical with pressure F2 direction.Because rubber valve 6 is provided with projection 6-1, the high pressure oil among the first cavity 1-2 enters the second cavity 1-3 by the gap between plunger 5 and the rubber valve 6, and by back loop oil outlet 1-6 output high pressure oil.When F1＜F2+F3, the first cavity 1-2 is communicated with the second cavity 1-3, when F1=F2+F3, plunger 5 at one end moves to 2 on lever, the second column side wall 5-3-1 and annular stop limit 6-2 fit tightly, the first cavity 1-2 and the second cavity 1-3 cut off, and back loop oil outlet 1-6 oil pressure loop oil inlet 1-5 oil pressure no longer subsequently changes, thereby realize reducing the purpose of rear axle braking oil pressure.
Two, after front loop lost efficacy: this moment, front loop oil inlet 1-7 oil pressure was zero, then the 3rd cavity 1-4 oil pressure is zero, at this moment plunger 5 stressed F1 are zero, this moment F2+F3＞F1, the first cavity 1-2 is communicated with the second cavity 1-3 always, back loop oil outlet 1-6 oil pressure is consistent with loop, back oil inlet 1-5 oil pressure always, and it is maximum that back axle braking force keeps.
Claims (7)
- One kind can safety control hydraulic pressure load sensing valve device, comprise and be provided with inner chamber (1-1), the valve body (1) of first cavity (1-2) and second cavity (1-3), be arranged in inner chamber (1-1) and be with the plunger (5) of oil sealing (4), with plunger (5) one end bonded assembly levers (2), wherein, one end of described first cavity (1-2) and second cavity (1-3) all is communicated with described inner chamber (1-1), the other end is respectively back loop oil inlet (1-5) and back loop oil outlet (1-6), it is characterized in that: described valve body (1) also is provided with the 3rd cavity (1-4) that an end is communicated with described inner chamber (1-1), the other end of described the 3rd cavity (1-4) is front loop oil inlet (1-7), described plunger (5) is by first cylinder (5-1) with different-diameter, first round platform (5-2), second cylinder (5-3), the 3rd cylinder (5-4), second round platform (5-5), the 3rd round platform (5-6), the 4th cylinder (5-7), the 4th round platform (5-8), the 5th cylinder (5-9), the 5th round platform (5-10), the 6th cylinder (5-11), the 6th round platform (5-12) and the 7th cylinder (5-13), the 7th round platform (5-14) connects and composes successively, be with rubber valve (6) in the form of a ring on described the 3rd cylinder (5-4), wherein, the both sides of described rubber valve (6) are equipped with a plurality of projections (6-1) that contact with second column side wall (5-3-1) with valve interior wall (1-8) respectively and are provided with the annular stop limit (6-2) of control second round platform (5-5) stroke, all are with described oil sealing (4) on described first cylinder (5-1) and the 5th cylinder (5-9).
- 2. hydraulic pressure load sensing valve device that can safety control according to claim 1, it is characterized in that: described a plurality of projections (6-1) circumferentially are distributed on the both sides of described rubber valve (6).
- 3. hydraulic pressure load sensing valve device that can safety control according to claim 1 and 2, it is characterized in that: the internal diameter of described rubber valve (6) is greater than the external diameter of described the 3rd cylinder (5-4).
- 4. hydraulic pressure load sensing valve device that can safety control according to claim 1 and 2, it is characterized in that: also be provided with push rod (3) between described plunger (5) and the lever (2), the two ends of described push rod (3) are connected with plunger (5) with lever (2) respectively.
- 5. hydraulic pressure load sensing valve device that can safety control according to claim 3, it is characterized in that: also be provided with push rod (3) between described plunger (5) and the lever (2), the two ends of described push rod (3) are connected with plunger (5) with lever (2) respectively.
- 6. hydraulic pressure load sensing valve device that can safety control according to claim 4, it is characterized in that: an end of described push rod (3) is provided with protruding cap (3-1), and push rod (3) is connected with plunger (5) by protruding cap (3-1).
- 7. hydraulic pressure load sensing valve device that can safety control according to claim 5, it is characterized in that: an end of described push rod (3) is provided with protruding cap (3-1), and push rod (3) is connected with plunger (5) by protruding cap (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206869107U CN201907494U (en) | 2010-12-29 | 2010-12-29 | Hydraulic load sensing valve device capable of being safely controlled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206869107U CN201907494U (en) | 2010-12-29 | 2010-12-29 | Hydraulic load sensing valve device capable of being safely controlled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907494U true CN201907494U (en) | 2011-07-27 |
Family
ID=44299703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206869107U Expired - Fee Related CN201907494U (en) | 2010-12-29 | 2010-12-29 | Hydraulic load sensing valve device capable of being safely controlled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773149A (en) * | 2015-04-28 | 2015-07-15 | 安徽江淮汽车股份有限公司 | Load sensing proportional valve body and load sensing proportional valve |
| CN105151025A (en) * | 2015-08-20 | 2015-12-16 | 江门市大长江集团有限公司 | Linkage hydraulic device and motor vehicle |
-
2010
- 2010-12-29 CN CN2010206869107U patent/CN201907494U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773149A (en) * | 2015-04-28 | 2015-07-15 | 安徽江淮汽车股份有限公司 | Load sensing proportional valve body and load sensing proportional valve |
| CN104773149B (en) * | 2015-04-28 | 2017-07-04 | 安徽江淮汽车集团股份有限公司 | A kind of SABS valve body and SABS |
| CN105151025A (en) * | 2015-08-20 | 2015-12-16 | 江门市大长江集团有限公司 | Linkage hydraulic device and motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |