CN2616441Y - Light brake valve piston - Google Patents
Light brake valve piston Download PDFInfo
- Publication number
- CN2616441Y CN2616441Y CN 03234227 CN03234227U CN2616441Y CN 2616441 Y CN2616441 Y CN 2616441Y CN 03234227 CN03234227 CN 03234227 CN 03234227 U CN03234227 U CN 03234227U CN 2616441 Y CN2616441 Y CN 2616441Y
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- CN
- China
- Prior art keywords
- piston
- groove
- cylindrical
- spring
- column
- 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 light break valve piston, which belongs to car break valve piton; wherein, a piston core 11 comprises a big cylinder 10 and a small cylinders 13, 17, the big cylinder 10 is matched with a piston cover 7 by inner hole, a sealing ring 9 is arranged inside the circumferential groove of the big cylinder 10 up which a groove 16 with a circular ring shape is arranged on the junction of the small cylinder 17 and the big cylinder 10, a cylindrical stage is arranged under the big cylinder 10, a spring 12 is arranged inside of the groove 15, which is arranged between the cylindrical stage and the inwards convex stage of the piston cover 7, the springs 5 is arranged on the groove 16 and small cylinder 17, the spring 5 is fixed by the bolt 1which is arranged on the threaded hole of the small cylinder 17 through cup packing 4, flat washer 3 and elastic washer 2. The utility model has the advantages of portability and flexibility of break, balance and tenderness, and is applicable to ''jiefang'' series car-used break valve.
Description
Technical field: the utility model relates to liberation series automobiles piston for brake valve, particularly a kind of light-duty piston for brake valve.
Background technology: when present liberation series piston for brake valve used, brake activation valve cylinder body air pressure was big, and the piston motion resistance is also big, and chaufeur is very heavy when using, underaction.
Summary of the invention: the purpose of this utility model is: a kind of light-duty piston for brake valve is provided, and this piston for brake valve can reach the purpose that braking is light, braking is flexible, balance is soft.
Formation of the present utility model: by piston core, piston jacket, spring, packing ring, bolt and seal ring are formed, piston core 11 is by big column 10, small column 13,17 form, big column 10 cooperates with piston jacket 7 endoporus, above big column 10, toroidal cavity 16 is arranged with small column 17 joint portions, there is cylindrical step the below, between the step of cylindrical step and piston jacket 7 convexes fluted 15, in groove 15, clamp spring 12, pocketed springs 5 on groove 16 and small column 17, spring 5 is by cup packing 4, flat gasket 3 and spring washer 2, fixing by the bolt 1 that is installed on small column 17 tapped bore.
Piston jacket 7 is cylindrical shapes, and the endoporus upper end is fluted, mounting circular ring shape circlip 6 in groove, and there is the step of convex the endoporus lower end, on the cylindrical of piston jacket 7 toroidal cavity is arranged, and seal ring 8 is installed in groove.
In the middle of the cylinder of piston core 11 axially extending bore is arranged, on the endoporus of upper end negative thread is arranged, on the cylindrical of big column 10 annular groove is arranged, seal ring 9 is installed in groove, annular groove 14 is arranged on the cylindrical of small column 13.
Compared with the prior art, core of the present utility model is to increase a upper piston overcoat, keeping on original piston cylinder pressure basis of invariable, reduce area of thrust surface, thereby alleviated the pressure of piston motion part, braking was laborsaving, nimble, simultaneously softer when chaufeur used, and better braking effect is arranged.
The small column of piston core upper end shortens 2～3mm, the while recoil spring corresponding minimizing 2～3mm in free gap, air-flow is accelerated, again the toroidal cavity on the small column of lower end is increased 1.5～2.5mm, make valve opening increase 1.5～2.5mm on original basis, air-flow is unimpeded like this, thereby the airshed of rear wheel brake is strengthened quickening, glancing impact has been strengthened sensitivity, and the pulsation-free effect is played in parking.
The sectional area of piston core and the piston cross-section of original technology are relatively long-pending, have reduced the overcoat sectional area, add and have weakened the mutual effect of spring, make the softer balance of glancing impact, use freely.
Description of drawings: accompanying drawing is the utility model structural representation.
1. bolts among the figure, 2. spring washer, 3. flat gasket, 4. cup packing, 5. spring, 6. circlip, 7. piston jacket, 8. seal ring, 9. seal ring, 10. big column, 11. piston cores, 12. springs, 13. small column, 14. grooves, 15. grooves, 16. grooves, 17. small columns.
The specific embodiment: as shown in the figure, piston core 11 is made up of big column 10, small column 13 and small column 17, big column 10 cooperates with the endoporus of piston jacket 7, above big column 10, toroidal cavity 16 is arranged with small column 17 joint portions, there is cylindrical step the below, between the step of cylindrical step and piston jacket 7 convexes fluted 15, in groove 15, clamp spring 12, mounting spring 5 on annular groove 16 and small column 17, spring 5 is by cup packing 4, flat gasket 3 and spring washer 2, and is fixing by the bolt 1 that is installed on small column 17 threaded interior holes.
Piston jacket 7 is cylindrical shapes, and the endoporus upper end is fluted, and mounting circular ring shape circlip 6 blocks the location in groove, and there is the step of convex the endoporus lower end, and is fluted on the cylindrical of piston jacket 7, and seal ring 8 is installed in groove.
Axially extending bore is arranged in the middle of the cylinder of piston core 11, on the endoporus of upper end negative thread is arranged, on the cylindrical of big column 10 annular groove is arranged, seal ring 9 is installed in groove, air tight when piston core 11 is slided up and down in piston jacket 7, annular groove 14 is arranged on the cylindrical of small column 13, annular groove 14 increases 1.5～2.5mm, can increase suction quantity, thereby the airshed of rear wheel brake is strengthened quickening, the pulsation-free effect is played in parking.
Claims (3)
1. light-duty piston for brake valve, by piston core, piston jacket, spring, packing ring, bolt and seal ring are formed, it is characterized in that: piston core (11) is by big column (10), small column (13) (17) is formed, big column (10) cooperates with piston jacket (7) endoporus, there is toroidal cavity (16) top and small column (17) joint portion at big column (10), there is cylindrical step the below, between the step of cylindrical step and piston jacket (7) convex fluted (15), in groove (15), clamp spring (12), go up pocketed springs (5) at groove (16) and small column (17), spring (5) is by cup packing (4), flat gasket (3) and spring washer (2), fixing by the bolt (1) that is installed on small column (17) tapped bore.
2. light-duty piston for brake valve according to claim 1, it is characterized in that: piston jacket (7) is a cylindrical shape, the endoporus upper end is fluted, mounting circular ring shape circlip (6) in groove, there is the step of convex the endoporus lower end, on the cylindrical of piston jacket (7), toroidal cavity is arranged, seal ring (8) is installed in groove.
3. light-duty piston for brake valve according to claim 1, it is characterized in that: axially extending bore is arranged in the middle of the cylinder of piston core (11), on the endoporus of upper end negative thread is arranged, on the cylindrical of big column (10) annular groove is arranged, seal ring (9) is installed in groove, annular groove (14) is arranged on the cylindrical of small column (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234227 CN2616441Y (en) | 2003-04-28 | 2003-04-28 | Light brake valve piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234227 CN2616441Y (en) | 2003-04-28 | 2003-04-28 | Light brake valve piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616441Y true CN2616441Y (en) | 2004-05-19 |
Family
ID=34249073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234227 Expired - Fee Related CN2616441Y (en) | 2003-04-28 | 2003-04-28 | Light brake valve piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616441Y (en) |
-
2003
- 2003-04-28 CN CN 03234227 patent/CN2616441Y/en not_active Expired - Fee Related
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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 |