CN204878466U - Diaphragm formula internal respiration spring brake air chamber - Google Patents
Diaphragm formula internal respiration spring brake air chamber Download PDFInfo
- Publication number
- CN204878466U CN204878466U CN201520509206.7U CN201520509206U CN204878466U CN 204878466 U CN204878466 U CN 204878466U CN 201520509206 U CN201520509206 U CN 201520509206U CN 204878466 U CN204878466 U CN 204878466U
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- China
- Prior art keywords
- diaphragm
- air vent
- chamber
- air
- spring
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Abstract
The utility model discloses a diaphragm formula internal respiration spring brake air chamber forms a complete brake chamber by preceding air chamber casing and rather than well casing that links to each other and the back air chamber casing that links to each other with well casing, in the preceding air chamber casing be by push away a set return spring, push away a set subassembly, the involucra, and the spring slap and to form, still be equipped with the gas storage chamber in the preceding air chamber casing, internal preceding sealing washer, guide ring, the back sealing washer of being equipped with of mesochite, comprise big piston assembly, parking spring, big Y type sealing washer, guide ring, jib subassembly and end cap subassembly, wherein big Y type sealing washer and guide ring dress is on big piston assembly, and the end cap subassembly is twisted at the top of piston axle, is equipped with diaphragm, diaphragm slide, diaphragm return spring, diaphragm return spring seat and end cap in the end cap subassembly, be equipped with air vent A on the diaphragm on the end cap subassembly, be equipped with air vent D between diaphragm and the diaphragm disk seat. The utility model is suitable for a car.
Description
Technical field
The improvement invention of a kind of motor spring brake chamber involved by the utility model, especially relates to a kind of diaphragm type internal breathing spring braking air chamber.
Background technique
The brake chamber of current motor vehicles is a kind of external respiration type spring air chamber, large piston, piston shaft, plug has seal ring to seal, large piston is when moving up or down, will suck or breath in chamber, so just arrange exhaust port at respiratory cavity, exhaust port leather hose is connected with front gas chamber shell; But the brake chamber leather hose of external respiration structure is easily aging to come off, cause sewage and silt to be easy to enter respiratory cavity, the working life of respiratory cavity critical piece will be affected.
Model utility content
The purpose of this utility model is for the technical problem existing for outgoing call suction spring brake chamber, provide a kind of structure simple, reasonable in design, can not cause sewage, silt enters brake chamber and increases the working life of rear air cavity inner piece and a kind of diaphragm type internal respiration type spring brake chamber of stable performance.
In order to solve the problems of the technologies described above, the utility model have employed as under type completes.The utility model is sliding rod type internal breathing spring braking air chamber, by front gas chamber shell and coupled middle shell and rear gas chamber's housing of being connected with middle shell form a complete brake chamber, prop up palm seat by push-plate return spring, push-plate assembly, epithelium and spring in front gas chamber shell to form, in front gas chamber shell, be also provided with air storing cavity, front seal ring, guide ring, rear seal ring is provided with in middle shell, be made up of large piston assembly, parking spring, large y-type seal ring, guide ring, hanger rod component and plug component in rear gas chamber's housing, wherein large y-type seal ring and guide ring are contained on large piston assembly, plug component is screwed in the top of piston shaft, be divided into energy-storing chamber and respiratory cavity by large piston assembly in rear gas chamber's housing, in plug component, be provided with diaphragm, diaphragm slide, diaphragm return spring, diaphragm return spring seat and plug, the concave surface of large piston assembly and parking spring contact, large piston assembly loads in rear gas chamber's housing, is bolted compression, makes rear gas chamber's housing be closed with middle shell, hanger rod component is screwed on the nut of rear gas chamber's housing through piston axis hole, plug component is screwed in the top of piston shaft, piston shaft is provided with air vent, diaphragm on plug component is provided with air vent A, air vent D is provided with between diaphragm and diaphragm valve seat, air vent B is provided with between the plug of plug component and diaphragm valve seat, the top of piston shaft is provided with air vent C, air vent F is provided with between diaphragm return spring seat in plug component and diaphragm valve seat, diaphragm return spring seat in plug component is provided with air vent E, air vent E is connected with respiratory cavity, air vent E is connected with air vent F, air vent F is connected with air vent D, air vent D is connected with air vent A, air vent A is connected with air vent B, air vent B is connected with air vent C, piston shaft is upwards passed by the seal ring on middle shell inwall, air vent C communicates with driving chamber.
Front gas chamber shell and the pressing of middle shell clip seal, and rear gas chamber's housing and middle shell bolt pressing seal, and are divided into energy-storing chamber and respiratory cavity, the O RunddichtringO on hanger rod component and the nut seal of rear gas chamber's housing in rear gas chamber's housing by large piston assembly.
The utility model compared with prior art, has following obvious advantage, and (1) the utility model becomes internal respiration type structure by original external respiration type structure.(2) owing to being all provided with air vent on piston and plug, and eliminate the spiracle of aforementioned rear gas chamber housing, like this, the foreign material such as sewage, silt just cannot enter, and effectively ensure that the working life of parking braking section components.(3) middle shell and piston shaft wall contacts place are provided with two road seal rings, when vehicle is in driving states, piston shaft is in upper/lower positions, now seal ring has intercepted the passage in air vent and driving chamber, also take service brake when seal ring occurs that damage or automobile are in parking braking simultaneously, when the air pressure in driving chamber is acted on diaphragm by air flue connection, diaphragm overcomes return spring power slide downward, sealing surface A on diaphragm and the sealing surface B on diaphragm valve seat is close to, , thus blocked the connection of air flue and air flue, achieve air pressure to close, when preventing service brake, air pressure enters respiratory cavity by air flue and destroys braking, make driving safer, when not doing driving stop, diaphragm seal face A is separated under the effect of return spring power with the sealing surface B of diaphragm valve seat, air vent and respiratory cavity are all in and are communicated with normally open.
The utility model is applicable to automobile.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure cut-away view.
Plug modular construction cut-away view when Fig. 2 is the utility model driving states.
Fig. 3 is the utility model parking brake condition air flue status architecture cut-away view.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model have employed as under type completes.The utility model is sliding rod type internal breathing spring braking air chamber, by front gas chamber shell 1 and coupled middle shell 7 and rear gas chamber's housing 17 of being connected with middle shell 7 form a complete brake chamber, prop up palm seat 18 by push-plate return spring 4, push-plate assembly 2, epithelium 6 and spring in front gas chamber shell 1 to form, in front gas chamber shell 1, be also provided with air storing cavity 3, front seal ring 21, guide ring 22, rear seal ring 23 is provided with in middle shell 7, be made up of large piston assembly 12, parking spring 14, large y-type seal ring 40, guide ring 41, hanger rod component 15 and plug component 35 in rear gas chamber's housing 17, wherein large y-type seal ring 40 and guide ring 41 are contained on large piston assembly 12, plug component 35 is screwed in the top of piston shaft 39, is provided with diaphragm 8, diaphragm slide 11, diaphragm return spring 10, diaphragm return spring seat 20 and plug 9 in plug component 35, the concave surface of large piston assembly 12 contacts with parking spring 14, and large piston assembly 12 loads in rear gas chamber's housing 17, is bolted compression with middle shell 7, makes rear gas chamber's housing 17 for closed, hanger rod component 15 is screwed on the nut of rear gas chamber's housing 17 through piston shaft 39 hole, plug component 35 is screwed in the top of piston shaft 39, piston shaft 39 is provided with air vent 28, diaphragm 8 on plug component 35 is provided with air vent A26, air vent D25 is provided with between diaphragm 8 and diaphragm valve seat 11, air vent B27 is provided with between the plug 9 of plug component 35 and diaphragm valve seat 11, the top of piston shaft 39 is provided with air vent C28, air vent F24 is provided with between diaphragm return spring seat 20 in plug component 35 and diaphragm valve seat 11, diaphragm return spring seat 20 in plug component 35 is provided with air vent E36, air vent E36 is connected with respiratory cavity 13, air vent E36 is connected with air vent F24, air vent F24 is connected with air vent D25, air vent D25 is connected with air vent A26, air vent A26 is connected with air vent B27, air vent B27 is connected with air vent C28, piston shaft 39 upwards walks through the seal ring 21 on middle shell 7 inwall, air vent C28 communicates with driving chamber 37.
Front gas chamber shell 1 seals with middle shell 7 clip 5 pressing, rear gas chamber's housing 17 seals with middle shell 7 bolt pressing, energy-storing chamber 16 and respiratory cavity 13 is divided into by large piston assembly 12, the O RunddichtringO 30 on hanger rod component 15 and the nut seal of rear gas chamber's housing 17 in rear gas chamber's housing 17.
embodiment
When spring brake chamber carries out parking braking releasing, pressurized air enters energy-storing chamber, make large piston assembly, plug component moves downward, simultaneously parking spring is compressed, the unnecessary gas of respiratory cavity by piston shaft air vent, plug component air vent, enter air from service brake pipeline, this process is called expiration (see Fig. 2).
When carrying out parking braking, energy-storing chamber is reduced pressure, the parking spring overcoming air pressure of respiratory cavity extends, promote large piston assembly to move upward, realize braking, while large piston assembly moves, respiratory cavity is by piston shaft air vent, plug component air vent, suction gas from service brake pipeline, this process type is called air-breathing.
When the normal driving states of vehicle, piston shaft is in and moves downward position, now seal ring has intercepted the passage in air vent and driving chamber, during driving, gas can not scurry into respiratory cavity, if when seal ring damages or automobile is in parked state and have employed service brake simultaneously, air vent on piston shaft and arrester chamber of driving a vehicle communicates, air pressure acts on diaphragm by air flue, diaphragm overcomes return spring and moves downward, the sealing surface A of diaphragm and the sealing surface B of diaphragm valve seat is close to, thus blocked the connection of air vent and air vent, realize sub-air pressure to close, therefore, time after seal ring damage or automobile in automobile brake, when also taking service brake simultaneously, the gas of venting cavity also can not be scurried into respiratory cavity and destroy service brake (see Fig. 3).
The utility model is applicable to automobile.
Claims (4)
1. a diaphragm type internal breathing spring braking air chamber, by front gas chamber shell (1) and coupled middle shell (7) and rear gas chamber's housing (17) of being connected with middle shell (7) form a complete brake chamber, prop up palm seat (18) by push-plate return spring (4), push-plate assembly (2), epithelium (6) and spring in front gas chamber shell (1) to form, in front gas chamber shell (1), be also provided with air storing cavity (3), front seal ring (21), guide ring (22), rear seal ring (23) is provided with in middle shell (7), by large piston assembly (12) in rear gas chamber's housing (17), parking spring (14), large y-type seal ring (40), guide ring (41), hanger rod component (15) and plug component (35) formed, wherein large y-type seal ring (40) and guide ring (41) are contained on large piston assembly (12), plug component (35) is screwed in the top of piston shaft (39), energy-storing chamber (16) and respiratory cavity (13) is divided into by large piston assembly (12) in rear gas chamber's housing (17), it is characterized in that being provided with diaphragm (8) in plug component (35), diaphragm slide (11), diaphragm return spring (10), diaphragm return spring seat (20) and plug (9).
2. diaphragm type internal breathing spring braking air chamber according to claim 1, it is characterized in that piston shaft (39) is provided with air vent C (28), diaphragm (8) on plug component (35) is provided with air vent A (26), air vent D (25) is provided with between diaphragm (8) and diaphragm valve seat (11), air vent B (27) is provided with between the plug (9) of plug component (35) and diaphragm valve seat (11), air vent F (24) is provided with between diaphragm return spring seat (20) in plug component (35) and diaphragm valve seat (11), diaphragm return spring seat (20) in plug component (35) is provided with air vent E (36).
3. diaphragm type internal breathing spring braking air chamber according to claim 2, it is characterized in that air vent E (36) is connected with respiratory cavity (13), air vent E (36) is connected with air vent F (24), air vent F (24) is connected with air vent D (25), air vent D (25) is connected with air vent A (26), air vent A (26) is connected with air vent B (27), and air vent B (27) is connected with air vent C (28).
4. diaphragm type internal breathing spring braking air chamber according to claim 2, is characterized in that piston shaft (39) is upward through seal ring (21) on middle shell (7) inwall, air vent C (28) communicates with driving chamber (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509206.7U CN204878466U (en) | 2015-07-09 | 2015-07-09 | Diaphragm formula internal respiration spring brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509206.7U CN204878466U (en) | 2015-07-09 | 2015-07-09 | Diaphragm formula internal respiration spring brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878466U true CN204878466U (en) | 2015-12-16 |
Family
ID=54822841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520509206.7U Expired - Fee Related CN204878466U (en) | 2015-07-09 | 2015-07-09 | Diaphragm formula internal respiration spring brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878466U (en) |
-
2015
- 2015-07-09 CN CN201520509206.7U patent/CN204878466U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180709 |