CN203655980U - Spring brake air chamber inner breathing device - Google Patents

Spring brake air chamber inner breathing device Download PDF

Info

Publication number
CN203655980U
CN203655980U CN201420029798.8U CN201420029798U CN203655980U CN 203655980 U CN203655980 U CN 203655980U CN 201420029798 U CN201420029798 U CN 201420029798U CN 203655980 U CN203655980 U CN 203655980U
Authority
CN
China
Prior art keywords
spring
brake chamber
piston shaft
piston
spring brake
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 - Lifetime
Application number
CN201420029798.8U
Other languages
Chinese (zh)
Inventor
李传武
王伟
曾增口
杨帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruili Group Ruian Auto Parts Co Ltd
Original Assignee
Ruili Group Ruian Auto Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ruili Group Ruian Auto Parts Co Ltd filed Critical Ruili Group Ruian Auto Parts Co Ltd
Priority to CN201420029798.8U priority Critical patent/CN203655980U/en
Application granted granted Critical
Publication of CN203655980U publication Critical patent/CN203655980U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Braking Arrangements (AREA)

Abstract

A spring brake air chamber inner breathing device comprises a casing (6'). A top rod (66') is embedded in the bottom of the casing (6'), a piston (67) is arranged in the casing (6'), a spring is installed on one side of the piston (67), a spring cavity (71) is formed between one side of the piston (67) and the casing (6'), and the other side of the piston (67) is connected with a piston shaft (66). The piston shaft (66) comprises a piston shaft through hole (65). A parking cavity (4) is formed by a cavity between the casing (6') and the piston shaft (66), and the top rod (66') penetrates the casing (6'), the piston (67) and a piston shaft through hole (65). The spring brake air chamber inner breathing device is simple in structure, convenient to install and use, capable of greatly improving vehicle running and parking state conversion, high in efficiency, low in cost and good in positive effect.

Description

Spring brake chamber internal respiration device
Technical field
The utility model relates to the internal respiration device of a kind of breathing equipment, particularly a kind of spring brake chamber.
Background technique
Domestic spring brake chamber can reach the usage requirement of 600,000 times in stand test, but is difficult to reach this standard in actual use.And the reliability of product performance will directly have influence on public safety on the one hand, will produce harmful effect to the utilization of resources on the other hand.Domestic generally in the supporting 1 year internal fault rate of product of main engine factory greatly about 2%-3% left and right, mean lifetime is no more than 3 years; As the rate of fault in the product three months in maintenance market, up to more than 5%, mean lifetime is no more than 2 years, thereby spring brake chamber has become genuine easily damaged parts.Trace it to its cause, main is because spring brake chamber belongs to tightness component, be subject to the impact of external environment very big, because piston, diaphragm etc. need " air-breathing " and " expiration " in movement process, when dust or silt etc. are inhaled into after cavity, can increase the inordinate wear of moving element, sealing be produced to harmful effect simultaneously, thereby cause the reduction in working life.Some manufacturing enterprises indiscriminately imitate external product structure no longer completely in recent years, in succession develop the spring brake chamber of some applicable China's actual conditions.
Application number is that the application of China of 201210054674.0 discloses a kind of internal breathing type spring braking air chamber, as shown in Figure 1, it comprises cylindrical shell, on cylindrical shell, be installed with aluminium lid, on aluminium lid, be installed with lid, piston in combination is installed in cylindrical shell, in piston in combination, be provided with energy storage spring, in lid, be provided with and piston in combination push-plate combination point-blank, one end of push-plate combination is provided with return spring, the other end of push-plate combination is provided with clevis, on cylindrical shell, be provided with the first exhaust elbow, on lid, be provided with the second exhaust elbow, the first exhaust elbow is connected by steam hose with the second exhaust elbow, this internal breathing type spring braking air chamber is generally applied on the ransaxle that is arranged on automobile, for automobile provides braking moment, but its structure is still succinct not, tool improves, room for improvement.
Model utility content
The utility model provides a kind of spring brake chamber internal respiration device, it comprise housing 6 ', this housing bottom setting-in push rod 66 ', in described housing, piston is housed, this piston one side is equipped with spring, between described piston one side and described housing, form spring chamber 71, described piston opposite side connects piston shaft, this piston shaft comprises piston shaft through hole, cavity between described housing and described piston shaft forms parking chamber 4, described push rod is through described housing, described piston and described piston shaft through hole, described housing is connected with middle shell, this middle shell also connects front cover, the central axis setting-in push-rod assembly of this front cover, between this push-rod assembly and described front cover, return spring seat is housed, return spring I is housed on return spring seat, this return spring is sleeved on push-rod assembly outside, described middle shell comprises diaphragm near a side of front cover, between described middle shell and described diaphragm, form service brake chamber 57, described diaphragm one side connects described push-rod assembly, described piston shaft comprises vent.
Preferably, the end setting-in valve base 63 of described piston shaft through hole 65 inner sides.
Preferably, the end of described piston shaft through hole 65 comprises radial groove near described valve base 63 places.
Preferably, described valve base 63 excircle embedded sealing rings 62.
Preferably, described valve base 63 inner side setting-in valves 60.
Preferably, setting-in return spring II 61 between described valve base 63 and described valve 60.
Preferably, the outer setting-in K of described valve 60 shape seal ring 59, so that described valve 60 seals with described valve base 63.
Preferably, setting-in locking component 64 in the radial groove of the end of described piston shaft through hole 65, this locking component is for fixing described valve base 63.
Preferably, described vent comprises vent I 52 and vent II 54, described vent II 54 and described service brake chamber 57 UNICOMs.
Preferably, described piston shaft embeds the center of described middle shell, and piston shaft guide ring 51 is equipped with in described piston shaft and described middle shell joint, and O shape circle 50 is also housed between described piston shaft and described middle shell.
Preferably, O shape circle I 50 and O shape circle II 53 are housed between described piston shaft and described middle shell, described vent I 52 is enclosed between II 53 in O shape circle I 50 and O shape in the time of driving states, thereby vent I 52 and service brake chamber 57 are not communicated with.
Preferably, described service brake chamber 57, parking chamber 4, spring chamber 71, vent I 52, piston shaft through hole 65, cavity I 80 form spring chamber respiration channel 81.
Preferably, when described vent I 52 and service brake chamber 57 are not communicated with, described spring chamber respiration channel 81 is blocked.
Preferably, described vent I 52, in the time of parking, is positioned at O shape circle II 53 right sides, and, in service brake chamber 57, described spring chamber respiration channel 81 is unimpeded.
Preferably, described return spring I is cone spring.
Preferably, the spring of described piston one side is energy storage spring.
Preferably, described middle shell, described diaphragm, described front cover connect successively and are riveted together.
Preferably, between described K shape seal ring 59, described valve 60 and described valve base 63 and seal ring 62, form cavity I 80, this cavity I 80 is connected with described vent I 52.
Preferably, between described K shape seal ring 59, described valve 60 and described piston shaft 66, form cavity II 82, this cavity II 82 is connected with described vent II 54.
Preferably, between described cavity I 80 and cavity II 82, be separated by by K shape seal ring 59, K shape seal ring has unidirectional cutting function, be that gas between cavity II 82 and cavity I 80 can only carry over a direction and flows, and can not reverse circulated, that is: when the gas pressure in cavity I 80 is when after the gas pressure certain numerical value higher than in cavity II 82, gas is flowed in cavity II 82 by cavity I 80.
Preferably, setting-in guide ring 70 between described piston 67 and described housing.
Preferably, setting-in y-shaped ring 68 between described piston 67 and described housing.
Preferably, described guide ring 70 is inlaid in the groove outside described piston 67 successively with described y-shaped ring 68.
Preferably, described push rod is packed in the central axis of described housing by screw.
Preferably, described middle shell comprises interface.
Preferably, described middle shell comprises interface I 55 and interface II 56, and described interface I 55 is communicated with described parking chamber 4, and described interface II 56 is communicated with described service brake chamber 57.
The working method of the spring brake chamber internal respiration device that the utility model provides is: in the time of driving states, pass into pressurized air by the parts that are connected with interface 55 to parking chamber 4, pressurized air promotes piston movement and overcomes the elastic force of energy storage spring 69, energy storage spring 69 is compressed, vent I 52 is now between O shape is enclosed between I 50 and O shape circle II 53, spring chamber respiration channel 81 is cut off, service brake chamber 57 like this, parking chamber 4, spring chamber 71 is independent not connected separately, vent II 54 and service brake chamber 57 are communicated with, now service brake, service brake chamber 57 passes into pressurized air, can enter into cavity II 82 by vent 54 simultaneously, due to K shape seal ring 59, the effect of seal ring 58, the air in the service brake chamber 57 that enters can not be flushed in other chamber, if now the compressed air leakage of other chamber is to spring chamber 71, when pressure reaches after certain value, the pressurized air of atmospheric pressure value the raised area can be crossed K shape seal ring 59 and enter into cavity II 82, and by vent II 54 and service brake chamber 57 and the parts that join with interface II 56, be finally discharged in atmosphere.
Be transformed in parking state procedure at driving states, be in 4 evacuation procedure of parking chamber, now return spring seat 12, push-rod assembly 10, return spring 7, diaphragm 5, piston 67, the inner each parts of piston shaft 66 and piston shaft 66 under energy storage spring 69 effect in crossover position, energy storage spring 69 discharges gradually, transfer extended configuration to by compressive state, corresponding parts move thereupon, in this process, spring chamber 71 volumes become large, produce negative pressure, need tonifying Qi, once vent I 52 is crossed O shape circle II 53 to the right, and with spring chamber respiration channel 81 UNICOMs, spring chamber 71 is by spring chamber respiration channel 81, the members that service brake chamber 57 and interface II 56 are joined, thereby breathe.
In the time of parking state, service brake chamber 57 and spring chamber 71 communicate by spring chamber respiration channel 81, cavity I 80 communicates by vent I 52 and service brake chamber 57, cavity II 82 communicates by vent II 54 and service brake chamber 57, if now carry out service brake, 57 air inlets of service brake chamber, cavity I 80 and 82 air inlets simultaneously of cavity II, because chamber 80 body I and spring chamber 71 communicate, total measurement (volume) is many greatly compared with cavity II 82, thereby decompression rate is slow compared with cavity II 82, cavity II 82 and cavity I 80 can produce pressure difference like this, when pressure difference is during higher than a certain value, valve 60 overcomes the effect of return spring 61 and contacts with valve base 63, close spring chamber respiration channel 81, cut off service brake chamber 57 and spring chamber 71, avoid the gas flow spring chamber 71 in 57 li, service brake chamber.
When parking state is transformed in driving states process, be in 4 pressure processes of parking chamber, now the each parts of piston and piston shaft under energy storage spring 69 effect each parts in crossover position, energy storage spring 69 is compressed gradually, each parts are along with energy storage spring 69 moves to its compression direction, if now service brake is removed completely, the brake chamber 57 of driving a vehicle does not have air pressure, valve 60 is under return spring 61 effects, spring chamber respiration channel 81 is unimpeded, change to during process driving states turns at parking state like this, spring chamber 71 volumes diminish, produce pressure, need exhaust, spring chamber 71 is by passing through spring chamber respiration channel 81, the parts that service brake chamber 57 and interface II 56 are joined are breathed, until vent I 52 is positioned between O shape circle I 50 and O shape circle II 53, spring chamber respiration channel 81 is just cut off, piston 67 continues to be moved to the left, spring chamber 71 volumes further diminish, pressure rise, if now service brake also exists, the brake chamber 57 of driving a vehicle also has air pressure, and now spring chamber respiration channel 81 is cut off, and now carries out parking state and changes to process driving states, and spring chamber 71 is isolated, and volume diminishes, pressure rise.
When final driving, service brake is removed completely, and the brake chamber 57 of driving a vehicle does not have air pressure, and now pressurized gas climb over K shape seal ring 59 from cavity I 80 and flow to cavity II 82, and the parts that join by service brake chamber 57 and interface 56 are discharged in large sky.
More multioperation is all known for those of ordinary skills, repeats no more.
The technological scheme of spring brake chamber internal respiration device provided by the utility model comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.
The spring brake chamber internal respiration apparatus structure that the utility model provides is simple, is convenient to install and use, and the state that can greatly improve vehicle driving, parking transforms, and efficiency is high, becomes local, has great good effect.
Accompanying drawing explanation
Fig. 1 is that application number is the cross-sectional view of a kind of internal breathing type spring braking air chamber of 201210054674.0;
Fig. 2 is that now vehicle is in driving states according to the cross-sectional view of a preferred embodiment of spring brake chamber internal respiration device of the present utility model;
Fig. 3 is the structural representation in the time of parking state embodiment illustrated in fig. 2;
Fig. 4 is the structure for amplifying schematic diagram of circle part in Fig. 2;
In Fig. 2-Fig. 4, numeral represents respectively:
4 parking chamber 5 diaphragms
6 middle shell 6 ' housings
66 ' push rod, 7 return spring I
9 clip 10 push-rod assemblies
11 front cover 12 return spring seats
50 O shape circle I 51 piston shaft guide rings
52 vent I 53 O shape circle II
54 vent II 55 interface I
56 interface II 57 service brake chambeies
58 seal ring I 59 K shape seal rings
60 valve 61 return spring II
62 seal ring II 63 valve bases
64 locking component 65 piston shaft through holes
66 piston shaft 67 pistons
68 y-shaped ring 69 energy storage springs
70 guide ring 71 spring chambers
80 cavity I 81 spring chamber respiration channels
82 cavity II.
Embodiment
In order to understand better the utility model, describe in detail respectively according to the preferred embodiment of spring brake chamber internal respiration device of the present utility model below in conjunction with accompanying drawing.
Fig. 2 is that now vehicle is in driving states according to the cross-sectional view of a preferred embodiment of spring brake chamber internal respiration device of the present utility model; Fig. 3 is the structural representation in the time of parking state embodiment illustrated in fig. 2; Fig. 4 is the structure for amplifying schematic diagram of circle part in Fig. 2.A kind of spring brake chamber internal respiration device providing in the present embodiment comprise housing 6 ', this housing 6 ' bottom setting-in push rod 66 ', housing 6 ' be inside equipped with piston 67, these piston 67 1 sides are equipped with spring, described piston 67 1 sides and housing 6 ' between form spring chamber 71, piston 67 opposite sides connect piston shaft 66, this piston shaft 66 comprises piston shaft through hole 65, housing 6 ' and piston shaft 66 between cavity form parking chamber 4, push rod 66 ' through housing 6 ', piston 67 and piston shaft through hole 65, housing 6 ' be connected with middle shell 6, this middle shell 6 also connects front cover 11, the central axis setting-in push-rod assembly 10 of this front cover 11, between this push-rod assembly 10 and front cover 11, return spring seat is housed, return spring I 7 is housed on return spring seat, this return spring I 7 is sleeved on push-rod assembly 10 outsides, middle shell 6 comprises diaphragm 5 near a side of front cover 11, between middle shell 6 and diaphragm 5, form service brake chamber 57, diaphragm 5 one sides connect described push-rod assembly 10, described piston shaft 66 comprises vent I 52 and vent II 54.
In the present embodiment, the end setting-in valve base 63 of described piston shaft through hole 65 inner sides.
In the present embodiment, the end of described piston shaft through hole 65 comprises radial groove near described valve base 63 places.
In the present embodiment, described valve base 63 excircle embedded sealing ring I 58 and seal ring II 62.
In the present embodiment, described valve base 63 inner side setting-in valves 60.
In the present embodiment, setting-in return spring II 61 between described valve base 63 and described valve 60.
In the present embodiment, the outer setting-in K of described valve 60 shape seal ring 59, so that described valve 60 seals with described valve base 63.
In the present embodiment, setting-in locking component 64 in the radial groove of the end of described piston shaft through hole 65, this locking component is for fixing described valve base 63.
In the present embodiment, described vent II 54 is communicated with described service brake chamber 57.
In the present embodiment, described piston shaft 66 embeds the center of middle shell 6, and described piston shaft 66 is equipped with piston shaft guide ring 51 with middle shell 6 joints, and O shape circle 50 is also housed between described piston shaft 66 and middle shell 6.
In the present embodiment, O shape circle I 50 and O shape circle II 53 are housed between described piston shaft 66 and middle shell 6, described vent I 52 is enclosed between II 53 in O shape circle I 50 and O shape in the time of driving states, thereby vent I 52 and service brake chamber 57 are not communicated with.
In the present embodiment, described service brake chamber 57, parking chamber 4, spring chamber 71, vent I 52, piston shaft through hole 65, cavity I 80 form spring chamber respiration channel 81.
In the present embodiment, when described vent I 52 and service brake chamber 57 are not communicated with, described spring chamber respiration channel 81 is blocked.
In the present embodiment, described vent I 52, in the time of parking, is positioned at O shape circle II 53 right sides, and, in service brake chamber 57, described spring chamber respiration channel 81 is unimpeded.
In the present embodiment, described return spring I 7 is cone spring.
In the present embodiment, the spring of described piston one side is energy storage spring.
In the present embodiment, middle shell 6, diaphragm 5, front cover 11 are riveted by clip 9.
In the present embodiment, between described K shape seal ring 59, described valve 60 and described valve base 63 and seal ring II 62, form cavity I 80, this cavity I 80 is connected with described vent I 52.
In the present embodiment, between described K shape seal ring 59, described valve 60 and described piston shaft 66, form cavity II 82, this cavity II 82 is connected with described vent II 54.
In the present embodiment, between described cavity I 80 and cavity II 82, be separated by by K shape seal ring 59, K shape seal ring 59 has unidirectional cutting function, be that gas between cavity II 82 and cavity I 80 can only carry over a direction and flows, and can not reverse circulated, that is: when the gas pressure in cavity I 80 is when after the gas pressure certain numerical value higher than in cavity II 82, gas is flowed in cavity II 82 by cavity I 80.
In the present embodiment, setting-in guide ring 70 between described piston 67 and described housing.
In the present embodiment, setting-in y-shaped ring 68 between described piston 67 and described housing.
In the present embodiment, described guide ring 70 is inlaid in the groove outside described piston 67 successively with described y-shaped ring 68.
In the present embodiment, push rod 66 ' be packed in by the screw central axis of described housing.
In the present embodiment, middle shell 6 comprises interface I 55 and interface II 56, and interface I 55 is communicated with described parking chamber 4, and described interface II 56 is communicated with described service brake chamber 57.
The working method of the spring brake chamber internal respiration device that the present embodiment provides is: in the time of driving states, pass into pressurized air by the parts that are connected with interface 55 to parking chamber 4, pressurized air promotes piston movement and overcomes the elastic force of energy storage spring 69, energy storage spring 69 is compressed, vent I 52 is now between O shape is enclosed between I 50 and O shape circle II 53, spring chamber respiration channel 81 is cut off, service brake chamber 57 like this, parking chamber 4, spring chamber 71 is independent not connected separately, vent II 54 and service brake chamber 57 are communicated with, now service brake, service brake chamber 57 passes into pressurized air, can enter into cavity II 82 by vent 54 simultaneously, due to K shape seal ring 59, the effect of seal ring I 58, the air in the service brake chamber 57 that enters can not be flushed in other chamber, if now the compressed air leakage of other chamber is to spring chamber 71, when pressure reaches after certain value, the pressurized air of atmospheric pressure value the raised area can be crossed K shape seal ring 59 and enter into cavity II 82, and by vent II 54 and service brake chamber 57 and the parts that join with interface II 56, be finally discharged in atmosphere.
Be transformed in parking state procedure at driving states, be in 4 evacuation procedure of parking chamber, now return spring seat 12, push-rod assembly 10, return spring I 7, diaphragm 5, piston 67, the inner each parts of piston shaft 66 and piston shaft 66 under energy storage spring 69 effect in crossover position, energy storage spring 69 discharges gradually, transfer extended configuration to by compressive state, corresponding parts move thereupon, in this process, spring chamber 71 volumes become large, produce negative pressure, need tonifying Qi, once vent I 52 is crossed O shape circle II 53 to the right, and with spring chamber respiration channel 81 UNICOMs, spring chamber 71 is by spring chamber respiration channel 81, the members that service brake chamber 57 and interface II 56 are joined, thereby breathe.
In the time of parking state, service brake chamber 57 and spring chamber 71 communicate by spring chamber respiration channel 81, cavity I 80 communicates by vent I 52 and service brake chamber 57, cavity II 82 communicates by vent II 54 and service brake chamber 57, if now carry out service brake, 57 air inlets of service brake chamber, cavity I 80 and 82 air inlets simultaneously of cavity II, because chamber 80 body I and spring chamber 71 communicate, total measurement (volume) is many greatly compared with cavity II 82, thereby decompression rate is slow compared with cavity II 82, cavity II 82 and cavity I 80 can produce pressure difference like this, when pressure difference is during higher than a certain value, valve 60 overcomes the effect of return spring II 61 and contacts with valve base 63, close spring chamber respiration channel 81, cut off service brake chamber 57 and spring chamber 71, avoid the gas flow spring chamber 71 in 57 li, service brake chamber.
When parking state is transformed in driving states process, be in 4 pressure processes of parking chamber, now the each parts of piston and piston shaft under energy storage spring 69 effect each parts in crossover position, energy storage spring 69 is compressed gradually, each parts are along with energy storage spring 69 moves to its compression direction, if now service brake is removed completely, the brake chamber 57 of driving a vehicle does not have air pressure, valve 60 is under 61 effects of return spring II, spring chamber respiration channel 81 is unimpeded, change to during process driving states turns at parking state like this, spring chamber 71 volumes diminish, produce pressure, need exhaust, spring chamber 71 is by passing through spring chamber respiration channel 81, the parts that service brake chamber 57 and interface II 56 are joined are breathed, until vent I 52 is positioned between O shape circle I 50 and O shape circle II 53, spring chamber respiration channel 81 is just cut off, piston 67 continues to be moved to the left, spring chamber 71 volumes further diminish, pressure rise, if now service brake also exists, the brake chamber 57 of driving a vehicle also has air pressure, and now spring chamber respiration channel 81 is cut off, and now carries out parking state and changes to process driving states, and spring chamber 71 is isolated, and volume diminishes, pressure rise.
When final driving, service brake is removed completely, and the brake chamber 57 of driving a vehicle does not have air pressure, and now pressurized gas climb over K shape seal ring 59 from cavity I 80 and flow to cavity II 82, and the parts that join by service brake chamber 57 and interface 56 are discharged in large sky.
More multioperation is all known for those of ordinary skills, repeats no more.
The technological scheme of the spring brake chamber internal respiration device that the present embodiment provides comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.
The spring brake chamber internal respiration apparatus structure that the present embodiment provides is simple, is convenient to install and use, and the state that can greatly improve vehicle driving, parking transforms, and efficiency is high, becomes local, has great good effect.

Claims (20)

1. a spring brake chamber internal respiration device, it comprises housing (6 '), this housing (6 ') bottom setting-in push rod (66 '), piston (67) is housed in housing (6 '), these piston (67) one sides are equipped with spring, between described piston (67) one sides and housing (6 '), form spring chamber (71), piston (67) opposite side connects piston shaft (66), this piston shaft (66) comprises piston shaft through hole (65), (cavity between 66 forms parking chamber (4) for housing (6 ') and piston shaft, push rod (66 ') is through housing (6 '), piston (67) and piston shaft through hole (65), housing (6 ') is connected with middle shell (6), this middle shell (6) also connects front cover (11), the central axis setting-in push-rod assembly (10) of this front cover (11), between this push-rod assembly (10) and front cover (11), return spring seat is housed, return spring I (7) is housed on return spring seat, this return spring I (7) is sleeved on push-rod assembly (10) outside, middle shell (6) comprises diaphragm (5) near a side of front cover (11), between middle shell (6) and diaphragm (5), form service brake chamber (57), diaphragm (5) one sides connect described push-rod assembly (10), it is characterized in that: described piston shaft (66) comprises vent I (52) and vent II (54).
2. spring brake chamber internal respiration device as claimed in claim 1, is characterized in that: the end setting-in valve base (63) of described piston shaft through hole (65) inner side.
3. spring brake chamber internal respiration device as claimed in claim 2, is characterized in that: the end of described piston shaft through hole (65) locates to comprise radial groove near described valve base (63).
4. spring brake chamber internal respiration device as claimed in claim 3, is characterized in that: described valve base (63) excircle embedded sealing ring.
5. spring brake chamber internal respiration device as claimed in claim 4, is characterized in that: described valve base (63) inner side setting-in valve (60), setting-in return spring II (61) between described valve base (63) and described valve (60).
6. spring brake chamber internal respiration device as claimed in claim 5, is characterized in that: described valve (60) outer setting-in K shape seal ring (59).
7. spring brake chamber internal respiration device as claimed in claim 6, is characterized in that: setting-in locking component (64) in the radial groove of the end of described piston shaft through hole (65).
8. spring brake chamber internal respiration device as claimed in claim 7, is characterized in that: described vent II (54) is communicated with described service brake chamber (57).
9. spring brake chamber internal respiration device as claimed in claim 8, it is characterized in that: described piston shaft (66) embeds the center of middle shell (6), described piston shaft (66) is equipped with piston shaft guide ring (51) with middle shell (6) joint, and O shape circle (50) is also housed between described piston shaft (66) and middle shell (6).
10. spring brake chamber internal respiration device as claimed in claim 9, is characterized in that: O shape circle I (50) and O shape circle II (53) are housed between described piston shaft (66) and middle shell (6).
11. spring brake chamber internal respiration devices as claimed in claim 10, is characterized in that: described service brake chamber (57), parking chamber (4), spring chamber (71), vent I (52), piston shaft through hole (65), cavity I (80) form spring chamber respiration channel (81).
12. spring brake chamber internal respiration devices as claimed in claim 11, is characterized in that: middle shell (6, diaphragm (5), front cover (11) riveted by clip (9).
13. spring brake chamber internal respiration devices as claimed in claim 12, it is characterized in that: between described K shape seal ring (59), described valve (60) and described valve base (63) and seal ring II (62), form cavity I (80), this cavity I (80) is connected with vent I (52).
14. spring brake chamber internal respiration devices as claimed in claim 13, is characterized in that: between described K shape seal ring (59), described valve (60) and described piston shaft (66), form cavity II (82).
15. spring brake chamber internal respiration devices as claimed in claim 14, is characterized in that: between described cavity I (80) and cavity II (82), be separated by by K shape seal ring (59).
16. spring brake chamber internal respiration devices as claimed in claim 15, is characterized in that: setting-in guide ring (70) between piston (67) and described housing.
17. spring brake chamber internal respiration devices as claimed in claim 16, is characterized in that: setting-in y-shaped ring (68) between piston (67) and described housing.
18. spring brake chamber internal respiration devices as claimed in claim 17, is characterized in that: guide ring (70) is inlaid in the outer groove of described piston (67) successively with described y-shaped ring (68).
19. spring brake chamber internal respiration devices as claimed in claim 18, is characterized in that: push rod (66 ') is packed in the central axis of housing (6 ') by screw.
20. spring brake chamber internal respiration devices as claimed in claim 19, it is characterized in that: middle shell (6) comprises interface I (55) and interface II (56), interface I (55) is communicated with described parking chamber (4), and interface II (56) is communicated with service brake chamber (57).
CN201420029798.8U 2014-01-17 2014-01-17 Spring brake air chamber inner breathing device Expired - Lifetime CN203655980U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420029798.8U CN203655980U (en) 2014-01-17 2014-01-17 Spring brake air chamber inner breathing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420029798.8U CN203655980U (en) 2014-01-17 2014-01-17 Spring brake air chamber inner breathing device

Publications (1)

Publication Number Publication Date
CN203655980U true CN203655980U (en) 2014-06-18

Family

ID=50922371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420029798.8U Expired - Lifetime CN203655980U (en) 2014-01-17 2014-01-17 Spring brake air chamber inner breathing device

Country Status (1)

Country Link
CN (1) CN203655980U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105563109A (en) * 2014-09-05 2016-05-11 芜湖盛力科技股份有限公司 Operation method for pressing assembly machine of air chamber assembly
CN107355498A (en) * 2017-09-14 2017-11-17 公安县谊睦机械加工有限公司 A kind of special checking cylinder of slag-soil truck
CN109045500A (en) * 2018-07-23 2018-12-21 东莞市先马机电有限公司 A kind of breathing equipment
CN110410437A (en) * 2019-07-22 2019-11-05 嘉兴盛鼎机械有限公司 Brake chamber with balancing valve structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105563109A (en) * 2014-09-05 2016-05-11 芜湖盛力科技股份有限公司 Operation method for pressing assembly machine of air chamber assembly
CN105563109B (en) * 2014-09-05 2017-09-29 芜湖盛力科技股份有限公司 The operating method of air chamber assembly pressing machine
CN107355498A (en) * 2017-09-14 2017-11-17 公安县谊睦机械加工有限公司 A kind of special checking cylinder of slag-soil truck
CN109045500A (en) * 2018-07-23 2018-12-21 东莞市先马机电有限公司 A kind of breathing equipment
CN110410437A (en) * 2019-07-22 2019-11-05 嘉兴盛鼎机械有限公司 Brake chamber with balancing valve structure
CN110410437B (en) * 2019-07-22 2024-02-06 嘉兴盛鼎机械有限公司 Brake chamber with balanced valve structure

Similar Documents

Publication Publication Date Title
CN106958686B (en) Pneumatic control exhaust valve
CN203655980U (en) Spring brake air chamber inner breathing device
CN105952698B (en) A kind of solution-air pressurized cylinder
CN203892420U (en) Internal breathing type spring cylinder
CN211693532U (en) Two-way valve
CN201547249U (en) High-pressure pneumatic stop valve
CN202646808U (en) High-pressure electromagnetic air control decompression valve
CN206221691U (en) A kind of guiding valve for vacuum excrement collector system
CN109944965B (en) Safety valve mechanism of onboard chemical oxygen generator
CN205781144U (en) Hub
CN112392442B (en) Anti-freezing and anti-blocking casing gas recovery device and method
CN203082092U (en) Internal breath type spring brake air chamber
CN203880154U (en) One-way air gun valve
CN203939652U (en) A kind of oil-gas recovery vacuum pump
CN211474745U (en) Bottom cover one-way inflation valve for single-tube shock absorber
CN210566511U (en) Manual exhaust valve
CN204153247U (en) Multifunctional safety valve
CN203785855U (en) Experimental device for testing reciprocating compressor piston rod sealing filler gas tightness
CN203146950U (en) Piston-spring combined type double-constant-value safety valve
CN208935489U (en) A kind of inflation safety valve
CN202884075U (en) Toxic flue gas safety shutoff valve
CN203442361U (en) Air supply connector for emergency maintenance
CN2606226Y (en) Flange connecting ball check valves
CN203248786U (en) Follow-up one-way valve and gas on-off control mechanism
CN204985822U (en) Resilient -sealed ball valve

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140618