CN203082092U - Internal breath type spring brake air chamber - Google Patents
Internal breath type spring brake air chamber Download PDFInfo
- Publication number
- CN203082092U CN203082092U CN 201320087218 CN201320087218U CN203082092U CN 203082092 U CN203082092 U CN 203082092U CN 201320087218 CN201320087218 CN 201320087218 CN 201320087218 U CN201320087218 U CN 201320087218U CN 203082092 U CN203082092 U CN 203082092U
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- gas chamber
- assembly
- air
- air chamber
- way valve
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Abstract
The utility model discloses an internal breath type spring brake air chamber which comprises a front air chamber casing, and a rear air chamber casing and a middle casing which are connected with the front air chamber casing. The front air chamber casing and a leather film form an air cavity; a push disc component is arranged in the air cavity; and a return spring is arranged on the push disc component. A large piston component is arranged in the rear air chamber casing; a piston shaft is arranged in the large piston component; and a packing spring and a hanger rod component are also arranged in the large piston component. A first air passage is arranged on the hanger rod component, and a breathing cavity is arranged in the large piston component. An energy storage cavity is arranged in the rear air chamber casing; a plug component is arranged at the end part of the piston shaft and positioned in the middle casing, and contacts the leather film on the front air chamber casing through the middle casing; and the concave surface of the large piston component contacts the parking spring. A plug one-way valve is arranged in the plug component; a one-way valve return spring and a snap spring are arranged on the one-way valve; two air ducts are arranged on the piston shaft; and two sealing points are arranged on the one-way valve. The spring brake air chamber is applicable to automobiles.
Description
Technical field
The improvement invention of the related a kind of motor spring brake chamber of the utility model especially relates to a kind of piston type internal respiration type spring braking air chamber.
Background technique
The used brake chamber of current mobility car is a kind of external respiration type spring air chamber, big piston, piston shaft, plug all has the sealing of O RunddichtringO, big piston is when moving up or down, will suck or breath in the chamber, so just at respiratory cavity exhaust port is set, exhaust port is connected with preceding gas chamber shell with leather hose; Come off but the brake chamber leather hose of external respiration structure is aging easily, cause sewage and silt to be easy to enter respiratory cavity, will influence the working life of respiratory cavity critical piece.
The model utility content
The purpose of this utility model is at the existing technical problem of external respiration formula spring braking air chamber, provide a kind of simple in structure, reasonable in design, can not cause sewage, silt enters brake chamber and increases the working life of back air cavity inner piece and a kind of piston type internal respiration type spring braking air chamber of stable performance.
In order to solve the problems of the technologies described above, the utility model has adopted following mode to finish.Internal respiration type spring braking air chamber of the present utility model, formed with the middle shell that is connected the front and back gas chamber shell by preceding gas chamber shell and coupled rear gas chamber's housing, preceding gas chamber shell and epithelium are formed air cavity, in air cavity, be provided with the push-plate assembly, the push-plate assembly is provided with the return spring seat, and the return spring seat is provided with return spring.Be provided with the big piston assembly in rear gas chamber's housing, be provided with piston shaft in the big piston assembly, also be provided with Parking spring and suspension rod assembly, an end of suspension rod assembly is located in the piston shaft, and its other end passes through the O RunddichtringO by rear gas chamber's nut seal.On the suspension rod assembly, be provided with first air flue, be provided with respiratory cavity in the big piston assembly.Be provided with big Y-shaped ring and guide ring between big piston assembly and the rear gas chamber's housing.Be provided with energy-storing chamber in rear gas chamber's housing, be provided with the plug assembly in the end of piston shaft, the plug assembly is screwed in the piston shaft top, place in the middle shell, be provided with y-type seal ring, guide ring and the sealing of O RunddichtringO between piston shaft and the middle shell, and contact with epithelium on the preceding gas chamber shell by middle shell, middle shell and preceding gas chamber shell are with clip pressing sealing.The concave surface of big piston assembly contacts with the Parking spring.Be provided with plug and unidirectional valve pocket in the plug assembly, be provided with one-way valve in the unidirectional valve pocket, one-way valve is provided with one-way valve return spring and jump ring, and the big piston assembly is packed into, and rear gas chamber's housing is interior afterwards to be compressed by bolt with middle shell, and it is closed making rear gas chamber's housing; Described piston shaft is provided with two air vents, and promptly the 4th air flue and the 5th air flue are provided with second air vent and the 3rd air flue on the plug assembly,
The utility model compared with prior art, concrete following significantly advantage and innovation.(1) simple in structure.The utility model adopts said structure to change, and makes the spring braking air chamber, becomes " internal respiration type structure by original " external respiration type structure "; (2) effect is obvious.Owing on piston shaft and plug assembly, all be provided with air vent, and cancelled the spiracle of aforementioned rear gas chamber housing, sewage like this, foreign material such as silt just can't enter, and have effectively guaranteed the working life of parking braking part parts; (3) aforementioned middle shell contacts out with the piston shaft outer wall and is provided with y-type seal ring, one O RunddichtringO, when damaging appears in y-type seal ring, in the time of on the gas pressure of venting cavity and the one-way valve, one-way valve overcomes return spring power and closes, air pressure can not enter respiratory cavity by air vent and destroy braking when preventing service brake, makes that driving is safer; All be in normally open under the one-way valve normal state.
The utility model is applicable to automobile.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is a model utility overall structure cut-away view.
Fig. 2 is the utility model plug assembly cut-away view.
Fig. 3 is two seal point structural representations on the utility model one-way valve.
Specific embodiments
Shown in accompanying drawing 1,2 and 3, internal respiration type spring braking air chamber of the present utility model, formed with the middle shell 7 that is connected front and back gas chamber shell 1,10 by preceding gas chamber shell 1 and coupled rear gas chamber's housing 10, preceding gas chamber shell 1 is formed air cavitys 3 with epithelium 6, in air cavity 3, be provided with push-plate assembly 2, push-plate assembly 2 is provided with return spring seat 21, and return spring seat 21 is provided with return spring 4.In rear gas chamber's housing 10, be provided with big piston assembly 12, be provided with piston shaft 11 in the big piston assembly 12, also be provided with Parking spring 14 and suspension rod assembly 15, an end of suspension rod assembly 15 is located in the piston shaft 11, and its other end is sealed by rear gas chamber's nut 16 by O RunddichtringO 17.On suspension rod assembly 15, be provided with first air flue 18, be provided with respiratory cavity 13 in the big piston assembly 12.Be provided with big Y-shaped ring 20 and guide ring 19 between big piston assembly 12 and the rear gas chamber's housing 10.Be provided with energy-storing chamber 9 in rear gas chamber's housing 10, be provided with plug assembly 8 in the end of piston shaft 11, plug assembly 8 is screwed in piston shaft 11 tops, place in the middle shell 7, be provided with y-type seal ring 31, guide ring 30 and O RunddichtringO sealing 29 between piston shaft 11 and the middle shell 7, and contact with epithelium 6 on the preceding gas chamber shell 1 by middle shell 7, middle shell 7 seals with preceding gas chamber shell 1 usefulness clip 5 pressings.The concave surface of big piston assembly 12 contacts with Parking spring 14.Be provided with plug 22 and unidirectional valve pocket 23 in the plug assembly 8, be provided with one-way valve 24 in the unidirectional valve pocket 23, one-way valve 24 is provided with one-way valve return spring 25 and jump ring 26, and pack in rear gas chamber's housing 10 back and middle shell 7 of big piston assembly 12 compressed by bolt, makes rear gas chamber's housing 10 for closed.Described piston shaft 11 is provided with two air vents, and promptly the 4th air flue 33 and the 5th air flue 32 are provided with second air vent 27 and the 3rd air flue 28 on plug assembly 8, are provided with two seal points on one-way valve 24, i.e. first seal point 34 and second seal point 35.
Embodiment
When the utility model spring braking air chamber carries out the parking braking releasing, pressurized air enters energy-storing chamber 9, make big piston assembly 12, plug assembly 8 moves downward, the spring of Parking simultaneously 14 is compressed, and respiratory cavity 13 unnecessary gases pass through piston shaft 11 air vents, plug assembly 8 air vents, enter atmosphere from the service brake pipeline, this process is called expiration.
When the utility model spring braking air chamber carries out parking braking, make energy-storing chamber 9 decompressions, the Parking spring 14 of respiratory cavity 13 overcomes the air pressure elongation, promote big piston assembly 12 to left movement, realize braking, in 12 motions of big piston assembly, respiratory cavity is by piston shaft 11 air vents, plug assembly 8 air vents suck gas from the service brake pipeline, this process is called air-breathing.
When the utility model spring braking air chamber carries out service brake, air vent 32 on the piston shaft 11 is sealed by y-type seal ring 31, gas can not scurried into respiratory cavity 13 during driving, when if y-type seal ring 31 damages, gas pressure is on one-way valve 24, one-way valve 24 overcomes return spring 25 and moves downward under certain air pressure, by two seal points on the one-way valve 24 is that first seal point 34 and second seal point 35 are closed venting channels with unidirectional valve pocket 23 sealings, therefore when Y-shaped ring 31 damaged, the gas of venting cavity can not scurried into respiratory cavity yet and destroy service brake.
The utility model is applicable to automobile.
Claims (4)
1. internal respiration type spring braking air chamber, by preceding gas chamber shell (1) and coupled rear gas chamber's housing (10) be connected before and after gas chamber shell (1,10) middle shell (7) is formed, preceding gas chamber shell (1) is formed air cavity (3) with epithelium (6), in air cavity (3), be provided with push-plate assembly (2), push-plate assembly (2) is provided with return spring seat (21), return spring seat (21) is provided with return spring (4), in rear gas chamber's housing (10), be provided with big piston assembly (12), be provided with piston shaft (11) in the big piston assembly (12), also be provided with Parking spring (14) and suspension rod assembly (15), one end of suspension rod assembly (15) is located in the piston shaft (11), its the other end is sealed by rear gas chamber's nut (16) by O RunddichtringO (17), on suspension rod assembly 15, be provided with first air flue (18), it is characterized in that being provided with in the big piston assembly (12) respiratory cavity (13), be provided with energy-storing chamber (9) in rear gas chamber's housing (10), be provided with plug assembly (8) in the end of piston shaft (11), plug assembly (8) is screwed in the top of piston shaft (11), place in the middle shell (7), be provided with y-type seal ring (31) between piston shaft (11) and the middle shell (7), guide ring (30) and O RunddichtringO sealing (29), and contact with epithelium (6) on the preceding gas chamber shell (1) by middle shell (7).
2. internal respiration type spring braking air chamber according to claim 1, it is characterized in that being provided with in the described plug assembly (8) plug (22) and unidirectional valve pocket (23), be provided with one-way valve (24) in the unidirectional valve pocket (23), one-way valve (24) is provided with one-way valve return spring (25) and jump ring (26), big piston assembly (12) is packed into, and rear gas chamber's housing (10) is interior afterwards to be compressed by bolt with middle shell (7), makes rear gas chamber's housing (10) for closed.
3. internal respiration type spring braking air chamber according to claim 1, it is characterized in that described piston shaft (11) is provided with two air vents, promptly four-way air flue (33) and five-way air flue (32) are provided with second air vent (27) and the 3rd air vent (28) on plug assembly (8)
4. internal respiration type spring braking air chamber according to claim 2 is characterized in that being provided with two seal points, i.e. first seal point (34) and second seal point (35) on one-way valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087218 CN203082092U (en) | 2013-02-26 | 2013-02-26 | Internal breath type spring brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087218 CN203082092U (en) | 2013-02-26 | 2013-02-26 | Internal breath type spring brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082092U true CN203082092U (en) | 2013-07-24 |
Family
ID=48827933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087218 Expired - Fee Related CN203082092U (en) | 2013-02-26 | 2013-02-26 | Internal breath type spring brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758901A (en) * | 2013-12-27 | 2014-04-30 | 芜湖盛力科技股份有限公司 | Internal respiration structure of diaphragm type spring braking air chamber of brake system of commercial vehicle |
| CN105202079A (en) * | 2015-09-25 | 2015-12-30 | 安徽中启汽车科技有限公司 | Spring brake air chamber |
-
2013
- 2013-02-26 CN CN 201320087218 patent/CN203082092U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758901A (en) * | 2013-12-27 | 2014-04-30 | 芜湖盛力科技股份有限公司 | Internal respiration structure of diaphragm type spring braking air chamber of brake system of commercial vehicle |
| CN105202079A (en) * | 2015-09-25 | 2015-12-30 | 安徽中启汽车科技有限公司 | Spring brake air chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20140226 |