CN204110017U - The integral type upper piston of air brake valve - Google Patents
The integral type upper piston of air brake valve Download PDFInfo
- Publication number
- CN204110017U CN204110017U CN201420448166.5U CN201420448166U CN204110017U CN 204110017 U CN204110017 U CN 204110017U CN 201420448166 U CN201420448166 U CN 201420448166U CN 204110017 U CN204110017 U CN 204110017U
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- ring
- shaped step
- piston
- brake valve
- air brake
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Abstract
The utility model belongs to air brake valve technical field, especially relates to a kind of integral type upper piston of air brake valve.Piston core is arranged with outside piston rod, piston core one end is provided with the first ring-shaped step, first ring step the inner is provided with the second ring-shaped step, second ring-shaped step the inner is provided with the 3rd ring-shaped step, the internal diameter of the first ring-shaped step is greater than the internal diameter of the second ring-shaped step, the internal diameter of the second ring-shaped step is greater than the internal diameter of the 3rd ring-shaped step, the piston core other end is provided with the annular body between piston core and piston rod, piston rod, piston core and annular body are connected as a single entity structure, the piston core other end is also provided with the circular groove for mounting spring one end, the ring seal ring recess of piston core periphery, ring seal ring recess both sides are respectively equipped with annular guiding annular groove.Advantage is compared with prior art: reasonable in design, and structure is simple, can when the situation of tappet eccentric wear occurs, and still can normally work not hair fastener, ensures working stability, solve potential safety hazard.
Description
Technical field
The utility model belongs to air brake valve technical field, especially relates to a kind of integral type upper piston of air brake valve.
Background technology
Central control unit when air brake valve is running in gas circuit brake system, it plays the effect to air pressure adjustment in braking gas circuit.Prior art air brake valve complex structure, upper piston can cause upper piston hair fastener when tappet eccentric wear, may cause potential safety hazard, therefore need a kind of can tappet eccentric wear situation occur time, still can normally work the upper piston of not hair fastener, ensures working stability.
Such as, Chinese patent literature discloses a kind of brake valve for automobile brake [application number: 201020290550.9], comprise braking valve seat, piston and returning spring, the bottom of braking valve seat forms air extractor vent, upper seal ring to be fastened on braking valve base inner wall and piston between annular groove, lower seal is fastened between the lower annular groove on piston lower portion outer wall and braking valve seat, returning spring one end application force is in braking valve seat, other end application force is in piston, the returning spring acting point place of braking valve seat forms groove, and air extractor vent has part to be molded over beyond groove.
Although piston hair fastener can be prevented to a certain extent in such scheme, still there is design reasonable not, be not suitable for and use in air brake valve, upper piston hair fastener can be caused when tappet eccentric wear, job insecurity, also exists potential safety hazard, and safety is not high.
Summary of the invention
The purpose of this utility model is for the problems referred to above, and provide a kind of reasonable in design, structure is simple, good stability, the integral type upper piston of safe and reliable air brake valve.
For achieving the above object, the utility model have employed following technical proposal: the integral type upper piston of this air brake valve, comprise the piston rod in column, described piston rod is equipped with centre hole, it is characterized in that, piston core is arranged with outside described piston rod, described piston core one end is provided with the first ring-shaped step, described first ring step the inner is provided with the second ring-shaped step for laying rubber spring, second described ring-shaped step the inner is provided with the 3rd ring-shaped step, the internal diameter of the first described ring-shaped step is greater than the internal diameter of the second ring-shaped step, the internal diameter of the second described ring-shaped step is greater than the internal diameter of the 3rd ring-shaped step, the described piston core other end is provided with the annular body between piston core and piston rod, described piston rod, piston core and annular body are connected as a single entity structure, the described piston core other end is also provided with the circular groove for mounting spring one end, and circular groove reduces from outside to inside gradually, described piston core outer part is provided with the ring seal ring recess for holding seal ring, described ring seal ring recess both sides are respectively equipped with the annular guiding annular groove for placing guide ring.
In the integral type upper piston of above-mentioned air brake valve, described circular groove leads between annular groove at the second ring-shaped step and near the annular of annular body one end.
In the integral type upper piston of above-mentioned air brake valve, described annular body and centre hole concentric are arranged.
In the integral type upper piston of above-mentioned air brake valve, the external end outer part of described annular sleeve is provided with annular convex.
In the integral type upper piston of above-mentioned air brake valve, the first described ring-shaped step outer end is provided with the first guide face, is provided with the second guide face between the first described ring-shaped step and the second ring-shaped step.
In the integral type upper piston of above-mentioned air brake valve, described piston rod is provided with thread segment away from one end of annular body.
In the integral type upper piston of above-mentioned air brake valve, the sidewall of the second described ring-shaped step is tilted to outer end gradually laterally by the inner, and the sidewall of the second described ring-shaped step and bottom surface are 105 °.
In the integral type upper piston of above-mentioned air brake valve, described piston rod, piston core and the passivation of annular sleeve surface have aluminium alloy layer.
Compared with prior art, the advantage of the integral type upper piston of this air brake valve is: 1, reasonable in design, and structure is simple, can when the situation of tappet eccentric wear occurs, and still can normally work not hair fastener, ensures working stability, solve potential safety hazard.2, the smooth degree that works is good, can ensure that fast speed brakes.3, long service life, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, piston rod 1, centre hole 11, piston core 2, first ring-shaped step 21, second ring-shaped step 22, the 3rd ring-shaped step 23, annular body 3, circular groove 2a, ring seal ring recess 2b, annular guiding annular groove 2c, thread segment 1a, annular convex 31, first guide face 21a, the second guide face 22a.
Detailed description of the invention
As shown in Figure 1, the integral type upper piston of this air brake valve, comprise the piston rod 1 in column, piston rod 1 is equipped with centre hole 11, piston core 2 is arranged with outside piston rod 1, piston core 2 one end is provided with the first ring-shaped step 21, first ring-shaped step 21 the inner is provided with the second ring-shaped step 22 for laying rubber spring, second ring-shaped step 22 the inner is provided with the 3rd ring-shaped step 23, the internal diameter of the first ring-shaped step 21 is greater than the internal diameter of the second ring-shaped step 22, the internal diameter of the second ring-shaped step 22 is greater than the internal diameter of the 3rd ring-shaped step 23, piston core 2 other end is provided with the annular body 3 between piston core 2 and piston rod 1, piston rod 1, piston core 2 and annular body 3 are connected as a single entity structure, piston core 2 other end is also provided with the circular groove 2a for mounting spring one end, and circular groove 2a reduces from outside to inside gradually, piston core 2 outer part is provided with the ring seal ring recess 2b for holding seal ring, ring seal ring recess 2b both sides are respectively equipped with the annular guiding annular groove 2c for placing guide ring.Adopt said structure, can when the situation of tappet eccentric wear occur, still can normally work not hair fastener, ensures working stability, solve potential safety hazard; Integral structure is convenient to change.
Circular groove 2a is at the second ring-shaped step 22 and lead between annular groove 2c near the annular of annular body 3 one end, piston rod 1 is provided with thread segment 1a away from one end of annular body 3, annular body 3 and centre hole 11 concentric are arranged, annular body 3 outer end outer part is provided with annular convex 31, and piston rod 1, piston core 2 and annular body 3 surface passivation have aluminium alloy layer; First ring-shaped step 21 outer end is provided with the first guide face 21a, the second guide face 22a is provided with between first ring-shaped step 21 and the second ring-shaped step 22, the sidewall of the second ring-shaped step 22 is tilted to outer end gradually laterally by the inner, and the sidewall of the second ring-shaped step 22 and bottom surface are 105 °.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the term such as piston rod 1, centre hole 11, piston core 2, first ring-shaped step 21, second ring-shaped step 22, the 3rd ring-shaped step 23, annular body 3, circular groove 2a, ring seal ring recess 2b, annular guiding annular groove 2c, thread segment 1a, annular convex 31, first guide face 21a, the second guide face 22a herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (8)
1. the integral type upper piston of an air brake valve, comprise the piston rod (1) in column, described piston rod (1) is equipped with centre hole (11), it is characterized in that, piston core (2) is arranged with outside described piston rod (1), described piston core (2) one end is provided with the first ring-shaped step (21), described the first ring-shaped step (21) the inner is provided with the second ring-shaped step (22) for laying rubber spring, described the second ring-shaped step (22) the inner is provided with the 3rd ring-shaped step (23), the internal diameter of described the first ring-shaped step (21) is greater than the internal diameter of the second ring-shaped step (22), the internal diameter of described the second ring-shaped step (22) is greater than the internal diameter of the 3rd ring-shaped step (23), described piston core (2) other end is provided with the annular body (3) be positioned between piston core (2) and piston rod (1), described piston rod (1), piston core (2) and annular body (3) are connected as a single entity structure, described piston core (2) other end is also provided with the circular groove (2a) for mounting spring one end, and circular groove (2a) reduces from outside to inside gradually, described piston core (2) outer part is provided with the ring seal ring recess (2b) for holding seal ring, described ring seal ring recess (2b) both sides are respectively equipped with annular guiding annular groove (2c) for placing guide ring.
2. the integral type upper piston of air brake valve according to claim 1, it is characterized in that, described circular groove (2a) is positioned at the second ring-shaped step (22) and leads between annular groove (2c) near the annular of annular body (3) one end.
3. the integral type upper piston of air brake valve according to claim 1 and 2, is characterized in that, described annular body (3) and centre hole (11) concentric are arranged.
4. the integral type upper piston of air brake valve according to claim 3, is characterized in that, described annular body (3) outer end outer part is provided with annular convex (31).
5. the integral type upper piston of air brake valve according to claim 1 and 2, it is characterized in that, described the first ring-shaped step (21) outer end is provided with the first guide face (21a), is provided with the second guide face (22a) between described the first ring-shaped step (21) and the second ring-shaped step (22).
6. the integral type upper piston of air brake valve according to claim 1 and 2, is characterized in that, described piston rod (1) is provided with thread segment (1a) away from one end of annular body (3).
7. the integral type upper piston of air brake valve according to claim 1 and 2, it is characterized in that, the sidewall of described the second ring-shaped step (22) is tilted to outer end gradually laterally by the inner, and sidewall and the bottom surface of described the second ring-shaped step (22) are 105 °.
8. the integral type upper piston of air brake valve according to claim 1 and 2, is characterized in that, described piston rod (1), piston core (2) and annular body (3) surface passivation have aluminium alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448166.5U CN204110017U (en) | 2014-08-10 | 2014-08-10 | The integral type upper piston of air brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448166.5U CN204110017U (en) | 2014-08-10 | 2014-08-10 | The integral type upper piston of air brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204110017U true CN204110017U (en) | 2015-01-21 |
Family
ID=52327363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420448166.5U Expired - Fee Related CN204110017U (en) | 2014-08-10 | 2014-08-10 | The integral type upper piston of air brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204110017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575001A (en) * | 2022-03-14 | 2022-06-03 | 江苏美丽华电器有限公司 | Add pneumatic shred device of bullet machine |
-
2014
- 2014-08-10 CN CN201420448166.5U patent/CN204110017U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575001A (en) * | 2022-03-14 | 2022-06-03 | 江苏美丽华电器有限公司 | Add pneumatic shred device of bullet machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN SANCHUAN VAMKA WATER ENVIRONMENTAL PROTECTIO Free format text: FORMER OWNER: ZHUJI QIHANG MACHINERY TECHNOLOGY CO., LTD. Effective date: 20150713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150713 Address after: 2, building 278, building 69, crystal electronic testing center, No. 410205, Lu Feng Road, Changsha hi tech Development Zone, Hunan, Changsha Patentee after: Hunan Sanchuan Vamka Water Environmental Protection Technology Co., Ltd. Address before: Fengqiao town 311811 village of Zhejiang big city of Shaoxing province Zhuji City No. 846 Patentee before: ZHUJI QIHANG MACHINERY TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150810 |
|
| EXPY | Termination of patent right or utility model |