CN2761480Y - Internal breathing piston type spring brake air chamber - Google Patents
Internal breathing piston type spring brake air chamber Download PDFInfo
- Publication number
- CN2761480Y CN2761480Y CN 200420055081 CN200420055081U CN2761480Y CN 2761480 Y CN2761480 Y CN 2761480Y CN 200420055081 CN200420055081 CN 200420055081 CN 200420055081 U CN200420055081 U CN 200420055081U CN 2761480 Y CN2761480 Y CN 2761480Y
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- piston
- energy storage
- air chamber
- spool
- spring
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- Expired - Fee Related
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Abstract
The utility model relates to a braking device of an automobile, particularly to an internal breathing piston type spring braking air chamber. The utility model has the technical scheme that the internal breathing piston type spring braking air chamber comprises an energy storing cylinder body, a braking spring, an energy storing piston, an air chamber flange, a piston shaft component, a rubber diaphragm and a front cover component. The utility model is characterized in that the piston shaft component comprises an end cover, a piston shaft pipe and a one-way valve in the piston shaft pipe, the end cover is fixedly installed on the port of the piston shaft pipe, and a vent hole is arranged on the wall of the piston shaft pipe between the end cover and the valve core of the one-way valve. By applying the technical scheme, the utility model overcomes the deficiency of the prior art, and provides a novel internal breathing piston type spring braking air chamber with reasonable structure and long service life.
Description
Technical field
The utility model relates to a kind of brake device for car, is meant a kind of Internal Respiration Piston Spring Brake Chamber especially.
Background technology
At present, Internal Respiration Piston Spring Brake Chamber on market is by the energy storage cylinder body, retarding spring, the energy storage piston, the air chamber flange, the axis of the piston, diaphragm of rubber and protecgulum assembly are formed, retarding spring is arranged between energy storage cylinder body and the energy storage piston, the energy storage piston is sealed and matched as the slip base of retarding spring and with the energy storage cylinder body, the axis of the piston passes the air chamber flange and is fixedly connected on the energy storage piston and with the dynamic seal of air chamber flange and cooperates, energy storage piston and air chamber flange constitute the inflation cavity volume, and also constitute cavity volume with the energy storage cylinder body, the upper end of the axis of the piston is arranged in by diaphragm of rubber and air chamber flange and constitutes turnover air-capacitor chamber, the cavity volume that its energy storage piston and energy storage cylinder body are formed is in communication with the outside by external freeing pipe and carries out exhaust, such structure, because cavity volume contacts with extraneous, during braking during standstill, cavity volume produces the effect of sucking pump, easily suck foreign material by freeing pipe, and damage retarding spring and energy storage piston, can reduce the service life of braking during standstill part, and external freeing pipe is also aging easily, and stops up freeing pipe.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, and a kind of later-model a kind of Internal Respiration Piston Spring Brake Chamber of rational in infrastructure, long service life is provided.
The utility model adopts following technical scheme: a kind of Internal Respiration Piston Spring Brake Chamber, include the energy storage cylinder body, retarding spring, the energy storage piston, the air chamber flange, the axis of the piston assembly, diaphragm of rubber and preceding cap assemblies, wherein connect by the air chamber flange between energy storage cylinder body and the preceding cap assemblies, retarding spring is arranged between energy storage cylinder body and the energy storage piston, the energy storage piston is sealed and matched as the slip base of retarding spring and with the energy storage cylinder body, the axis of the piston assembly passes the air chamber flange and is fixedly connected on the energy storage piston and with the dynamic seal of air chamber flange and cooperates, energy storage piston and air chamber flange constitute the inflation cavity volume, and constitute cavity volume with the energy storage cylinder body, the working end of the axis of the piston assembly is arranged in by diaphragm of rubber and air chamber flange and constitutes turnover air-capacitor chamber, described the axis of the piston assembly includes end cap, piston central siphon and the check valve that is arranged in the piston central siphon, end cap is fixedly installed on the port of piston central siphon, on the axis of the piston tube wall between the spool of end cap and check valve, be provided with deflation hole, described piston central siphon is being provided with the through hole that is communicated with air cavity with the end cap bonded assembly other end, and described piston central siphon is provided with the through hole that is communicated with cavity volume at the other end that end cap is set.
Further setting of the present utility model is: described check valve includes spool, valve body, packing ring, spring, its middle washer is fixedly installed in the piston central siphon, and on this packing ring, be provided with through hole, between packing ring and end cap, be provided with valve body, spring and spool successively, described valve body cooperates with the axis of the piston seal of tube, described valve body is provided with through hole, and the cooresponding boss that is provided with salable cooperation with it on spool describedly is provided with the isolation boss near end cap one side on spool.
Be provided with groove near end cap one side on the described spool, be provided with groove near packing ring one side on the described valve body, this groove faces the through hole on the packing ring, the bottom of the groove of spring one end conflict on the boss of spool, and the through hole that the other end passes on the valve body is conflicted on packing ring.
By on the axis of the piston tube wall between the spool of end cap and check valve, being provided with through hole and being provided with the through hole that is communicated with cavity volume at the other end that end cap is set of piston central siphon.Gas in the cavity volume is discharged from the axis of the piston assembly.Again because end cap and check valve are independent respectively the settings, can only take out end cap like this and needn't take out check valve.
Description of drawings
Fig. 1 is the background technology structural representation;
Fig. 2 is the utility model example structure scheme drawing;
Fig. 3 is the E portion enlarged drawing among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described:
As shown in Figures 2 and 3, a kind of Internal Respiration Piston Spring Brake Chamber, include energy storage cylinder body 1, retarding spring 2, energy storage piston 3, air chamber flange 4, the axis of the piston assembly 5, diaphragm of rubber 6 and preceding cap assemblies 9, wherein connect by air chamber flange 4 between energy storage cylinder body 1 and the preceding cap assemblies 9, retarding spring 2 is arranged between energy storage cylinder body 1 and the energy storage piston 3, energy storage piston 3 is sealed and matched as the slip base of retarding spring 2 and with energy storage cylinder body 1, the axis of the piston assembly 5 passes air chamber flange 4 and is fixedly connected on the energy storage piston 3 and with 4 dynamic seals of air chamber flange and cooperates, energy storage piston 3 and air chamber flange 4 constitute inflation cavity volume A, and constitute cavity volume C with energy storage cylinder body 1, the working end of the axis of the piston assembly 5 is arranged in by diaphragm of rubber 6 and air chamber flange 4 and constitutes turnover air-capacitor chamber B, and said here working end is the other end that the axis of the piston assembly 5 is captiveed joint with energy storage piston 3.Described the axis of the piston assembly 5 includes end cap 56, piston central siphon 51 and is arranged in the check valve 55 of piston central siphon 51, end cap 56 is fixedly installed on the port of piston central siphon 51, be provided with deflation hole 511 on piston central siphon 51 tube walls between the spool 551 of end cap 56 and check valve 55, described piston central siphon 51 is provided with the through hole that is communicated with cavity volume C at the other end that end cap is set.Described check valve 55 includes spool 551, valve body 553, packing ring 554, spring 552, its middle washer 554 is fixedly installed in the piston central siphon 51, and on this packing ring 554, be provided with through hole 5541, between packing ring 554 and end cap 56, be provided with valve body 553, spring 552 and spool 551 successively, described valve body 553 is sealed and matched with piston central siphon 51, described valve body 553 is provided with through hole 5531, the cooresponding boss 5511 that is provided with salable cooperation with it on spool 551, described being provided with near end cap 56 1 sides on spool 551 isolated boss 5512.Thereby increase thrust in order to increase with the contact surface of air, on described spool 551, be provided with groove 5513 near end cap 56 1 sides, on described valve body 553, be provided with groove 5532 near packing ring 554 1 sides, this groove 5532 faces the through hole 5541 on the packing ring 554, in the groove 5514 of spring 552 1 ends conflict on the boss 5511 of spool 551, the through hole 5531 that the other end passes on the valve body 553 is conflicted on packing ring 554.
Concrete principle of work: when car stops, retarding spring 2 effects, energy storage piston 3 shifted onto send out blue 4 with air chamber and conflict, reach braking during standstill, in the time will starting car, hole 41 air inlets on the air chamber flange 4, make air pressure increase among the qi of chong channel ascending adversely cavity volume A, compression brake spring 2, the gas among the cavity volume C is cancelled braking during standstill by the 5 outside exhausts of the axis of the piston assembly simultaneously; In the process of moving, need emergency braking, then hole 42 air inlets on the air chamber flange 4 increase the air pressure in turnover air-capacitor chamber, reach the purpose of emergency braking.
Claims (3)
1, a kind of Internal Respiration Piston Spring Brake Chamber, include energy storage cylinder body (1), retarding spring (2), energy storage piston (3), air chamber flange (4), the axis of the piston assembly (5), diaphragm of rubber (6) and preceding cap assemblies (9), wherein connect by air chamber flange (4) between energy storage cylinder body (1) and the preceding cap assemblies (9), retarding spring (2) is arranged between energy storage cylinder body (1) and the energy storage piston (3), energy storage piston (3) is sealed and matched as the slip base of retarding spring (2) and with energy storage cylinder body (1), the axis of the piston assembly (5) passes air chamber flange (4) and is fixedly connected on that energy storage piston (3) is gone up and cooperates with air chamber flange (4) dynamic seal, energy storage piston (3) and air chamber flange (4) constitute inflation cavity volume (A), and constitute cavity volume (C) with energy storage cylinder body (1), the working end of the axis of the piston assembly (5) is arranged in by diaphragm of rubber (6) and air chamber flange (4) and constitutes turnover air-capacitor chamber (B), it is characterized in that: described the axis of the piston assembly (5) includes end cap (56), piston central siphon (51) and be arranged in the check valve (55) of piston central siphon (51), end cap (56) is fixedly installed on the port of piston central siphon (51), be provided with deflation hole (511) on piston central siphon (51) tube wall between the spool (551) of end cap (56) and check valve (55), described piston central siphon (51) is provided with the through hole that is communicated with cavity volume (C) at the other end that end cap is set.
2, Internal Respiration Piston Spring Brake Chamber according to claim 1, it is characterized in that: described check valve (55) includes spool (551), valve body (553), packing ring (554), spring (552), its middle washer (554) is fixedly installed in the piston central siphon (51), and on this packing ring (554), be provided with through hole (5541), between packing ring (554) and end cap (56), be provided with valve body (553) successively, spring (552) and spool (551), described valve body (553) is sealed and matched with piston central siphon (51), described valve body (553) is provided with through hole (5531), the cooresponding boss (5511) that is provided with salable cooperation with it on spool (551), described going up near end cap (56) one sides at spool (551) is provided with isolation boss (5512).
3, Internal Respiration Piston Spring Brake Chamber according to claim 2, it is characterized in that: described spool (551) is gone up near end cap (56) one sides and is provided with groove (5513), described valve body (553) is gone up near packing ring (554) one sides and is provided with groove (5532), this groove (5532) faces the through hole (5541) on the packing ring (554), in the groove (5514) of spring (552) one ends conflict on the boss (5511) of spool (551), the through hole (5531) that the other end passes on the valve body (553) is conflicted on packing ring (554).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055081 CN2761480Y (en) | 2004-12-23 | 2004-12-23 | Internal breathing piston type spring brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055081 CN2761480Y (en) | 2004-12-23 | 2004-12-23 | Internal breathing piston type spring brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761480Y true CN2761480Y (en) | 2006-03-01 |
Family
ID=36094613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055081 Expired - Fee Related CN2761480Y (en) | 2004-12-23 | 2004-12-23 | Internal breathing piston type spring brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761480Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011819A (en) * | 2010-10-29 | 2011-04-13 | 公主岭安宝有限责任公司 | Brake air chamber, brake system comprising same and motor vehicle |
| CN104308471A (en) * | 2014-09-19 | 2015-01-28 | 吕铝昌 | Manufacturing process of spring component |
| CN106043258A (en) * | 2016-07-26 | 2016-10-26 | 聂瑞波 | Breaker pump and applications thereof on loaders |
-
2004
- 2004-12-23 CN CN 200420055081 patent/CN2761480Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011819A (en) * | 2010-10-29 | 2011-04-13 | 公主岭安宝有限责任公司 | Brake air chamber, brake system comprising same and motor vehicle |
| CN104308471A (en) * | 2014-09-19 | 2015-01-28 | 吕铝昌 | Manufacturing process of spring component |
| CN106043258A (en) * | 2016-07-26 | 2016-10-26 | 聂瑞波 | Breaker pump and applications thereof on loaders |
| CN106043258B (en) * | 2016-07-26 | 2018-03-20 | 聂瑞波 | Brake pump and its application on loading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fujian Changfeng Axle Manufacturing Co., Ltd. Assignor: Yang Yurong Contract fulfillment period: 2008.8.19 to 2014.12.22 Contract record no.: 2008350000125 Denomination of utility model: Internal breathing piston type spring brake air chamber Granted publication date: 20060301 License type: Exclusive license Record date: 20081021 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.19 TO 2014.12.22; CHANGE OF CONTRACT Name of requester: FUJIAN CHANGFENG CAR BRIDGES MANUFACTURING CO., LT Effective date: 20081021 |
|
| 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 |