CN204399160U - Three grades of transformation flexible brake power-assisted relay valves - Google Patents
Three grades of transformation flexible brake power-assisted relay valves Download PDFInfo
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- CN204399160U CN204399160U CN201420870379.7U CN201420870379U CN204399160U CN 204399160 U CN204399160 U CN 204399160U CN 201420870379 U CN201420870379 U CN 201420870379U CN 204399160 U CN204399160 U CN 204399160U
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Abstract
The utility model relates to automobile brake technical field, specifically provide a kind of three grades of transformation flexible brake power-assisted relay valves, comprise the lower valve body being provided with lower cavity, be provided with the upper valve body of upper plenum and connect the middle valve body of described lower valve body and upper valve body, second piston and described middle valve body surround braking cavity, first piston and described middle valve body surround soft cavity of stopping, second piston is connected with first piston, described three grades of transformation flexible brake power-assisted relay valves also comprise soft device of stopping, described soft cavity of stopping is communicated with described soft device of stopping by the soft through hole of stopping being arranged at middle valve body, described soft device of stopping is provided with soft mouth of stopping, described soft mouth of stopping is communicated with described air extractor duct by outside pipeline, during brake, the gas of air extractor duct can enter soft cavity of stopping by soft device of stopping, play pressure buffer effect, by the power that first piston is reverse to the second piston action one realizing braking, make automobile brake time can be softer, not easily drag tire, reduce the probability because dragging tire to cause occurring traffic accident.
Description
Technical field
The utility model relates to automobile brake technical field, in particular to a kind of three grades of transformation flexible brake power-assisted relay valves.
Background technology
Brake activation valve common is at present braked by single piston, when taking braking, the pressurized air of air receiver enters brake activation valve by the admission port of brake activation valve, act on piston, piston is at the move under influence of gaseous tension, open valve, gas enters compressed air brake cylinder by the air extractor duct of brake activation valve, realizes braking.Such braking method, single braking mode, braking force is too strong, easily occurs dragging tire, uses inconvenience very, and there is potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of three grades of transformation flexible brake power-assisted relay valves, to make the braking force of current three grades of transformation flexible brake power-assisted relay valves too strong, easily occurs dragging the state of tire to be improved.
The utility model is achieved in that a kind of three grades of transformation flexible brake power-assisted relay valves, comprises the lower valve body being provided with lower cavity, the upper valve body being provided with upper plenum and connects the middle valve body of described lower valve body and upper valve body,
Described lower valve body is provided with the lower admission port that described lower cavity is communicated with the inflator of automobile and the air extractor duct that described lower cavity is communicated with the compressed air brake cylinder of automobile,
Described lower valve body is provided with the first valve of closed described air extractor duct, described three grades of transformation flexible brake power-assisted relay valves also comprise the second piston promoting described first valve, described second piston comprises the vertical portion of column and the transverse part of plate-like horizontal-extending, described transverse part and described middle valve body surround braking cavity, described upper valve body is provided with the enterprising gas port that described upper plenum is communicated with the inflator of automobile, described braking cavity is communicated with described upper plenum by the through hole being arranged at the inside of described vertical portion
The first seal ring that described middle valve body and described upper valve body junction are provided with first piston and seal, described first piston and described middle valve body surround soft cavity of stopping, described first piston is connected with described vertical portion, described three grades of transformation flexible brake power-assisted relay valves also comprise soft device of stopping, described soft cavity of stopping is communicated with described soft device of stopping by the soft through hole of stopping being arranged at middle valve body, described soft device of stopping is provided with soft mouth of stopping, described soft mouth of stopping is communicated with described air extractor duct by outside pipeline, described soft device of stopping also comprises the soft by-pass valve control of stopping controlling described soft mouth of stopping and be communicated with described soft through hole of stopping.
Further, described three grades of transformation flexible brake power-assisted relay valves also comprise the 3rd piston, described 3rd piston is arranged at described braking cavity, described braking cavity is divided into the first braking cavity and the second braking cavity by described 3rd piston, described 3rd piston and described transverse part surround the first braking cavity, described 3rd piston and described middle valve body surround the second brake chamber, and the cross-sectional area of described 3rd piston is greater than the cross-sectional area of described transverse part
Described three grades of transformation flexible brake power-assisted relay valves also comprise the blwr being provided with booster cavity, described blwr is connected with described middle valve body, described middle valve body is provided with the supercharging through hole that one end is communicated with described booster cavity, the other end of described supercharging through hole connects described second braking cavity, and described blwr comprises the boost port that described booster cavity is communicated with the inflator of automobile and the second valve closing described supercharging through hole.
When the braking force of described three grades of transformation flexible brake power-assisted relay valves is not enough, gaseous tension can be increased by blwr, to provide stronger braking force, described first braking cavity replaces described braking cavity to provide downward thrust for described second piston, after the gas of the inflator inside of automobile enters the second braking cavity by blwr simultaneously, promote described 3rd piston to move downward, described 3rd piston and then promotion the second piston, cross-sectional area due to the 3rd piston is greater than the cross-sectional area of described transverse part, under identical pressure, larger braking force can be provided.
Further, described blwr also comprises the 4th piston promoting described second valve, described three grades of transformation flexible brake power-assisted relay valves also comprise for the 4th piston provides the boost control passage of thrust, described boost control passage end is communicated with described upper plenum, and one end that the other end and described blwr are provided with described 4th piston is connected.
Described three grades of transformation flexible brake power-assisted relay valves are the need of supercharging, determine according to the pressure in upper plenum, if the pressure in upper plenum is too high, the needs having supercharging are just described, there is opening boost control passage and described 4th piston junction, and the gas in boost control passage acts on described 4th piston by this opening, 4th piston promotes the second valve under the effect of pressure, make the second valve open, the gas of the inflator inside of automobile enters from boost port, realizes supercharging.
Further, be provided with boost control piston in described boost control passage, control the first spring of boost pressure and regulate the first governing screw of described first spring pressure, described boost control piston is connected with the first spring away from one end of described upper plenum, and the other end of described first spring is connected with described first governing screw.
When the pressure that can be realized in upper plenum by boost control piston exceedes threshold values, just carry out supercharging, booster cavity and the channel attached one end of boost control are boost control passage one end away from described upper plenum, described boost control piston is arranged at the centre of boost control passage, makes the air pressure of upper plenum cannot directly act on the 4th piston.When the air pressure of upper plenum constantly increases, gas pressure is in boost control piston, and the first spring shrinks under the effect of the pressure, and the contraction of the first spring makes boost control piston constantly move to one end away from described upper plenum of boost control passage.When pressure exceedes threshold values, boost control piston continues to move to the one end away from described upper plenum, and no longer the gas intercepted in boost control passage is exerted pressure from aperture to the 4th piston, and the air pressure of upper plenum can directly act on the 4th piston, and then realizes supercharging.Meanwhile, described first spring pressure can be regulated by the first governing screw, the air pressure threshold values needing supercharging is set.
Further, described soft device of stopping also comprises the second spring controlling soft pressure of stopping and the second governing screw regulating described second spring pressure, and one end of described second spring is connected with described second governing screw.
Under normal condition, soft by-pass valve control of stopping is in open mode, but when needs increase braking force, soft device of stopping serves counteraction, now just needs to close soft by-pass valve control of stopping.When the air pressure of air extractor duct increases to threshold values, soft by-pass valve control of stopping is closed.Meanwhile, described two spring pressures can be regulated by the second governing screw, the air pressure threshold values needing to close soft by-pass valve control of stopping is set.
Further, described middle valve body, described soft device and the described blwr stopped are integrated.Integrated molding make described soft stop device and described supercharger structure more firm, be not easy to damage, and the production process of three grades of transformation flexible brake power-assisted relay valves is also more simple, need not make separately special soft device and the blwr stopped.
Further, described first piston is rubber diaphragm, and described first seal ring is double-decker, and described first piston is arranged at the described first double-deck centre of seal ring.Such structure makes described first piston while moving up and down, and described first seal ring also can keep the leak tightness in upper plenum and soft chamber of stopping.
Further, described admission port comprises the first time admission port be connected with main car inflator and the second time admission port be connected with trailer inflator.
Further, described enterprising gas port is connected with main car inflator.
Further, described boost port is connected with trailer inflator.
The situation that the air pressure provided at main car inflator is inadequate, trailer inflator can increase air pressure, improves the braking force of three grades of transformation flexible brake power-assisted relay valves.
Three grades of transformation flexible brake power-assisted relay valves that the utility model provides, be provided with soft cavity and the soft device of stopping stopped, during brake, the gas of air extractor duct can enter soft cavity of stopping by soft device of stopping, playing pressure buffer effect, to the reverse power of piston action one realizing braking, making automobile can be softer when braking, not easily dragging tire, reducing the probability because dragging tire to cause occurring traffic accident.
For making above-mentioned purpose of the present utility model, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.Shown in accompanying drawing, above-mentioned and other object of the present utility model, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not press actual size equal proportion convergent-divergent and draw accompanying drawing, focus on purport of the present utility model is shown.
The external structure schematic diagram of three grades of transformation flexible brake power-assisted relay valves that Fig. 1 provides for the utility model embodiment;
The front elevation of three grades of transformation flexible brake power-assisted relay valves that Fig. 2 provides for the utility model embodiment;
The back view of three grades of transformation flexible brake power-assisted relay valves that Fig. 3 provides for the utility model embodiment;
The left view of three grades of transformation flexible brake power-assisted relay valves that Fig. 4 provides for the utility model embodiment;
The right elevation of three grades of transformation flexible brake power-assisted relay valves that Fig. 5 provides for the utility model embodiment;
The birds-eye view of three grades of transformation flexible brake power-assisted relay valves that Fig. 6 provides for the utility model embodiment;
The upward view of three grades of transformation flexible brake power-assisted relay valves that Fig. 7 provides for the utility model embodiment;
The cutaway view in the A-A face of three grades of transformation flexible brake power-assisted relay valves that Fig. 8 provides for the utility model embodiment;
The cutaway view in the C-C face of three grades of transformation flexible brake power-assisted relay valves that Fig. 9 provides for the utility model embodiment;
The exploded view of three grades of transformation flexible brake power-assisted relay valves that Figure 10 provides for the utility model embodiment.
In figure, mark is specially:
Lower valve body 101, middle valve body 102, upper valve body 103, air extractor duct 104, first time admission port 105, second time admission port 106, enterprising gas port 107, first valve 108, first seal ring 109, first piston 110, second piston 111, vertical portion 112, transverse part 113, through hole 114, soft device 115 of stopping, soft through hole 116 of stopping, soft mouth 117 of stopping, soft by-pass valve control 118 of stopping, 3rd piston 119, blwr 120, supercharging through hole 121, boost port 122, second valve 123, 4th piston 124, boost control passage 125, boost control piston 126, first spring 127, first governing screw 128, second spring 129, second governing screw 130,
Lower cavity 201, upper plenum 202, soft cavity 203 of stopping, soft chamber 204, first of stopping are braked cavity 205, second and are braked cavity 206, booster cavity 207.
Detailed description of the invention
Below in conjunction with accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on embodiment of the present utility model, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Three grades of common at present transformation flexible brake power-assisted relay valves are braked by single piston, when taking braking, the pressurized air of air receiver enters three grades of transformation flexible brake power-assisted relay valves by the admission port of three grades of transformation flexible brake power-assisted relay valves, act on piston, piston is at the move under influence of gaseous tension, open valve, gas enters compressed air brake cylinder by the air extractor duct of three grades of transformation flexible brake power-assisted relay valves, realizes braking.Contriver finds through long-term observation and research, such braking method, single braking mode, and braking force is too strong, easily occurs dragging tire, uses inconvenience very, and there is potential safety hazard.
Three grades of transformation flexible brake power-assisted relay valves that the utility model embodiment provides, be provided with soft cavity and the soft device of stopping stopped, during brake, the gas of air extractor duct can enter soft cavity of stopping by soft device of stopping, playing pressure buffer effect, to the reverse power of piston action one realizing braking, making automobile can be softer when braking, not easily dragging tire, reducing the probability because dragging tire to cause occurring traffic accident.
Consult Fig. 1-7, the one that the utility model embodiment provides three grades of transformation flexible brake power-assisted relay valves, comprise the lower valve body 101 being provided with lower cavity 201, the upper valve body 103 being provided with upper plenum 202 and connect the middle valve body 102 of described lower valve body 101 and upper valve body 103
Described lower valve body 101 is provided with the lower admission port that described lower cavity 201 is communicated with the inflator of automobile and the air extractor duct 104 that described lower cavity 201 is communicated with the compressed air brake cylinder of automobile.
Described lower valve body 101 is provided with the first valve 108 of closed described air extractor duct 104, described three grades of transformation flexible brake power-assisted relay valves also comprise the second piston 111 promoting described first valve 108, described second piston 111 comprises the vertical portion 112 of column and the transverse part 113 of plate-like horizontal-extending, described transverse part 113 surrounds braking cavity with described middle valve body 102, described upper valve body 103 is provided with the enterprising gas port 107 that described upper plenum 202 is communicated with the inflator of automobile, described braking cavity is communicated with described upper plenum 202 by the through hole 114 being arranged at the inside of described vertical portion 112.
Consult Fig. 8-10, the first seal ring 109 that described middle valve body 102 is provided with first piston 110 with described upper valve body 103 junction and seals, described first piston 110 surrounds soft cavity 203 of stopping with described middle valve body 102, described first piston 110 is connected with described vertical portion 112, described three grades of transformation flexible brake power-assisted relay valves also comprise soft device 115 of stopping, described soft cavity 203 of stopping is communicated with described soft device 115 of stopping by the soft through hole 116 of stopping being arranged at middle valve body 102, described soft device 115 of stopping is provided with soft mouth 117 of stopping, described soft mouth 117 of stopping is communicated with described air extractor duct 104 by outside pipeline, described soft device 115 of stopping also comprises the soft by-pass valve control 118 of stopping controlling described soft mouth 117 of stopping and be communicated with described soft through hole 116 of stopping.
In order to improve the braking force of three grades of transformation flexible brake power-assisted relay valves, described three grades of transformation flexible brake power-assisted relay valves also comprise the 3rd piston 119, described 3rd piston 119 is arranged at described braking cavity, described braking cavity is divided into the first braking cavity 205 and the second braking cavity 206 by described 3rd piston 119, described 3rd piston 119 surrounds the first braking cavity 205 with described transverse part 113, described 3rd piston 119 surrounds the second brake chamber with described middle valve body 102, and the cross-sectional area of described 3rd piston 119 is greater than the cross-sectional area of described transverse part 113.
Described three grades of transformation flexible brake power-assisted relay valves also comprise the blwr 120 being provided with booster cavity 207, described blwr 120 is connected with described middle valve body 102, described middle valve body 102 is provided with the supercharging through hole 121 that one end is communicated with described booster cavity 207, the other end of described supercharging through hole 121 connects described second braking cavity 206, and described blwr 120 comprises the boost port 122 that described booster cavity 207 is communicated with the inflator of automobile and the second valve 123 closing described supercharging through hole 121.
When the braking force of described three grades of transformation flexible brake power-assisted relay valves is not enough, gaseous tension can be increased by blwr 120, to provide stronger braking force, described first braking cavity 205 replaces described braking cavity to provide downward thrust for described second piston 111, after the gas of the inflator inside of automobile enters the second braking cavity 206 by blwr 120 simultaneously, promote described 3rd piston 119 to move downward, described 3rd piston 119 and then promotion the second piston 111, cross-sectional area due to the 3rd piston 119 is greater than the cross-sectional area of described transverse part 113, under identical pressure, larger braking force can be provided.
Described blwr 120 also comprises the 4th piston 124 promoting described second valve 123, described three grades of transformation flexible brake power-assisted relay valves also comprise for the 4th piston 124 provides the boost control passage 125 of thrust, described boost control passage 125 one end is communicated with described upper plenum 202, and one end that the other end and described blwr 120 are provided with described 4th piston 124 is connected.
Described three grades of transformation flexible brake power-assisted relay valves are the need of supercharging, determine according to the pressure in upper plenum 202, if the pressure in upper plenum 202 is too high, the needs having supercharging are just described, there is aperture boost control passage 125 and described 4th piston 124 junction, in boost control passage 125, gas acts on described 4th piston 124 by this aperture, 4th piston 124 promotes the second valve 123 under the effect of pressure, second valve 123 is opened, the gas of the inflator inside of automobile enters from boost port 122, realizes supercharging.
Be provided with boost control piston 126 in described boost control passage 125, control the first spring 127 of boost pressure and regulate the first governing screw 128 of described first spring 127 pressure, described boost control piston 126 is connected with the first spring 127 away from one end of described upper plenum 202, and the other end of described first spring 127 is connected with described first governing screw 128.
When can exceed threshold values by boost control piston 126 pressure realized in upper plenum 202, just carry out supercharging, one end that booster cavity 207 is connected with boost control passage 125 is boost control passage 125 one end away from described upper plenum 202, described boost control piston 126 is arranged at the centre of boost control passage 125, makes the air pressure of upper plenum 202 cannot directly act on the 4th piston 124.When the air pressure of upper plenum 202 constantly increases, gas pressure is in boost control piston 126, first spring 127 shrinks under the effect of the pressure, and the contraction of the first spring 127 makes boost control piston 126 constantly move to one end away from described upper plenum 202 of boost control passage 125.When pressure exceedes threshold values, boost control piston 126 continues to move to the one end away from described upper plenum 202, no longer the gas intercepted in boost control passage 125 is exerted pressure from aperture to the 4th piston 124, and the air pressure of upper plenum 202 can directly act on the 4th piston 124, and then realizes supercharging.Meanwhile, described first spring 127 pressure can be regulated by the first governing screw 128, the air pressure threshold values needing supercharging is set.In this enforcement, need the air pressure threshold values of supercharging to be set to 0.55MPA, when air pressure is higher than 0.55MPA, start supercharging.
Described soft device 115 of stopping also comprises the second spring 129 controlling soft pressure of stopping and the second governing screw 130 regulating described second spring 129 pressure, and one end of described second spring 129 is connected with described second governing screw 130.
Under normal condition, soft by-pass valve control 118 of stopping is in open mode, but when needs increase braking force, soft device 115 of stopping serves counteraction, now just needs to close soft by-pass valve control 118 of stopping.When the air pressure of air extractor duct 104 increases to threshold values, soft by-pass valve control 118 of stopping is closed.Meanwhile, described two spring pressures can be regulated by the second governing screw 130, the air pressure threshold values needing to close soft by-pass valve control 118 of stopping is set.In this enforcement, need the air pressure threshold values of closing soft by-pass valve control 118 of stopping to be set to 0.35MPA, air extractor duct 104 air pressure is when below 0.35MPA, and soft by-pass valve control 118 of stopping is in open mode.
In order to increase the structural stability of three grades of transformation flexible brake power-assisted relay valves, described middle valve body 102, described soft device 115 and the described blwr 120 stopped are integrated.Integrated molding make described soft stop device 115 and described blwr 120 structure more firm, be not easy to damage, and the production process of three grades of transformation flexible brake power-assisted relay valves is also more simple, need not make separately special soft device 115 and the blwr 120 stopped.
Described first piston 110 is rubber diaphragm, and described first seal ring 109 is double-decker, and described first piston 110 is arranged at the described first double-deck centre of seal ring 109.Such structure makes described first piston 110 while moving up and down, and described first seal ring 109 also can keep the leak tightness in upper plenum 202 and soft chamber 204 of stopping.
Consult Fig. 1-6, in order to increase the braking force of three grades of transformation flexible brake power-assisted relay valves further, described admission port comprises the first time admission port 105 be connected with main car inflator and the second time admission port 106 be connected with trailer inflator, described enterprising gas port 107 is connected with main car inflator, and described boost port 122 is connected with trailer inflator.
During use, the gas in main car inflator enters upper plenum 202 by enterprising gas port 107, enters lower cavity 201 by first time admission port 105, and the gas in trailer inflator enters lower cavity 201 by second time admission port 106.
When gently touching on the brake, air pressure in upper plenum 202 is lower, soft by-pass valve control 118 of stopping is in open mode, gas enters the first braking cavity 205 by the through hole 114 in vertical portion 112, second piston 111 moves down under the influence of air pressure, promote the first valve 108, first valve 108 is opened, gas in lower cavity 201 enters the compressed air brake cylinder of automobile and soft device 115 of stopping by air extractor duct 104, the gas entering soft device 115 of stopping enters soft cavity 203 of stopping by soft through hole 116 of stopping, first piston 110 upward movement under the influence of air pressure, because first piston 110 is connected with the second piston 111, first piston 110 upwards for time, give the second piston 111 power upwards, first piston 110 is served to the effect of buffering, make brake percentage softer, not easily drag tire.
Air pressure when heavily touching on the brake in upper plenum 202 is higher, and soft by-pass valve control 118 of stopping is in closed condition, and gas enters the first braking cavity 205, second piston 111 by the through hole 114 in vertical portion 112 and moves down under the influence of air pressure.Simultaneously, move to the direction away from upper plenum 202 under the effect of the air pressure of boost control piston 126 in upper plenum 202 in described boost control passage 125, gas in boost control passage 125 is exerted pressure from aperture to the 4th piston 124, the air pressure of upper plenum 202 directly acts on the 4th piston 124, 4th piston 124 promotes the second valve 123, the gas in trailer inflator is made to enter the second braking cavity 206 by blwr 120 and supercharging through hole 121, 3rd piston 119 moves down under the influence of air pressure, and promote the second piston 111, first valve 108 is opened under the combined action of the second piston 111 and the 3rd piston 119, gas in cavity enters compressed air brake cylinder by air extractor duct 104, because soft by-pass valve control 118 of stopping is in closed condition, the gas of air extractor duct 104 no longer returns softly to be stopped in chamber 204, but all enter the compressed air brake cylinder of automobile, the larger braking force provided.
Three grades of transformation flexible brake power-assisted relay valves that the utility model provides, be provided with soft cavity 203 and the soft device 115 of stopping stopped, during brake, the gas of air extractor duct 104 can enter soft cavity 203 of stopping by soft device 115 of stopping, playing pressure buffer effect, to the reverse power of piston action one realizing braking, making automobile can be softer when braking, not easily dragging tire, reducing the probability because dragging tire to cause occurring traffic accident.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this utility model product orientation of usually putting or position relationship when using, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case the concrete meaning of above-mentioned term in the utility model can be understood.
Claims (10)
1. three grades of transformation flexible brake power-assisted relay valves, is characterized in that, described three grades of transformation flexible brake power-assisted relay valves comprise the lower valve body being provided with lower cavity, the upper valve body being provided with upper plenum and connect the middle valve body of described lower valve body and upper valve body,
Described lower valve body is provided with the lower admission port that described lower cavity is communicated with the inflator of automobile and the air extractor duct that described lower cavity is communicated with the compressed air brake cylinder of automobile,
Described lower valve body is provided with the first valve of closed described air extractor duct, described three grades of transformation flexible brake power-assisted relay valves also comprise the second piston promoting described first valve, described second piston comprises the vertical portion of column and the transverse part of plate-like horizontal-extending, described transverse part and described middle valve body surround braking cavity, described upper valve body is provided with the enterprising gas port that described upper plenum is communicated with the inflator of automobile, described braking cavity is communicated with described upper plenum by the through hole being arranged at the inside of described vertical portion
The first seal ring that described middle valve body and described upper valve body junction are provided with first piston and seal, described first piston and described middle valve body surround soft cavity of stopping, described first piston is connected with described vertical portion, described three grades of transformation flexible brake power-assisted relay valves also comprise soft device of stopping, described soft cavity of stopping is communicated with described soft device of stopping by the soft through hole of stopping being arranged at middle valve body, described soft device of stopping is provided with soft mouth of stopping, described soft mouth of stopping is communicated with described air extractor duct by outside pipeline, described soft device of stopping also comprises the soft by-pass valve control of stopping controlling described soft mouth of stopping and be communicated with described soft through hole of stopping.
2. three grades of transformation flexible brake power-assisted relay valves according to claim 1, it is characterized in that, described three grades of transformation flexible brake power-assisted relay valves also comprise the 3rd piston, described 3rd piston is arranged at described braking cavity, described braking cavity is divided into the first braking cavity and the second braking cavity by described 3rd piston, described 3rd piston and described transverse part surround the first braking cavity, described through hole is communicated with brakes cavity with described first, described 3rd piston and described middle valve body surround the second brake chamber, the cross-sectional area of described 3rd piston is greater than the cross-sectional area of described transverse part,
Described three grades of transformation flexible brake power-assisted relay valves also comprise the blwr being provided with booster cavity, described blwr is connected with described middle valve body, described middle valve body is provided with the supercharging through hole that one end is communicated with described booster cavity, the other end of described supercharging through hole connects described second braking cavity, and described blwr comprises the boost port that described booster cavity is communicated with the inflator of automobile and the second valve closing described supercharging through hole.
3. three grades of transformation flexible brake power-assisted relay valves according to claim 2, it is characterized in that, described blwr also comprises the 4th piston promoting described second valve, described three grades of transformation flexible brake power-assisted relay valves also comprise for the 4th piston provides the boost control passage of thrust, described boost control passage end is communicated with described upper plenum, and one end that the other end and described blwr are provided with described 4th piston is connected.
4. three grades of transformation flexible brake power-assisted relay valves according to claim 3, it is characterized in that, be provided with boost control piston in described boost control passage, control the first spring of boost pressure and regulate the first governing screw of described first spring pressure, described boost control piston is connected with the first spring away from one end of described upper plenum, and the other end of described first spring is connected with described first governing screw.
5. three grades of transformation flexible brake power-assisted relay valves according to claim 4, it is characterized in that, described soft device of stopping also comprises the second spring controlling soft pressure of stopping and the second governing screw regulating described second spring pressure, and one end of described second spring is connected with described second governing screw.
6. according to the arbitrary three grades of described transformation flexible brake power-assisted relay valves of claim 2-5, it is characterized in that, described middle valve body, described soft device and the described blwr stopped are integrated.
7. three grades of transformation flexible brake power-assisted relay valves according to claim 1, is characterized in that, described first piston is rubber diaphragm, and described first seal ring is double-decker, and described first piston is arranged at the described first double-deck centre of seal ring.
8. three grades of transformation flexible brake power-assisted relay valves according to claim 1, is characterized in that, described admission port comprises the first time admission port be connected with main car inflator and the second time admission port be connected with trailer inflator.
9. three grades of transformation flexible brake power-assisted relay valves according to claim 1, is characterized in that, described enterprising gas port is connected with main car inflator.
10. three grades of transformation flexible brake power-assisted relay valves according to claim 6, it is characterized in that, described boost port is connected with trailer inflator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420870379.7U CN204399160U (en) | 2014-12-22 | 2014-12-31 | Three grades of transformation flexible brake power-assisted relay valves |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2014208293504 | 2014-12-22 | ||
| CN201420829350 | 2014-12-22 | ||
| CN201420870379.7U CN204399160U (en) | 2014-12-22 | 2014-12-31 | Three grades of transformation flexible brake power-assisted relay valves |
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| CN204399160U true CN204399160U (en) | 2015-06-17 |
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| CN201420870379.7U Expired - Fee Related CN204399160U (en) | 2014-12-22 | 2014-12-31 | Three grades of transformation flexible brake power-assisted relay valves |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944886A (en) * | 2018-08-20 | 2018-12-07 | 王汉峰 | A kind of brake valve |
| CN110481530A (en) * | 2019-09-18 | 2019-11-22 | 张应彪 | A kind of multi-functional relay valve of booster-type |
-
2014
- 2014-12-31 CN CN201420870379.7U patent/CN204399160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944886A (en) * | 2018-08-20 | 2018-12-07 | 王汉峰 | A kind of brake valve |
| CN110481530A (en) * | 2019-09-18 | 2019-11-22 | 张应彪 | A kind of multi-functional relay valve of booster-type |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |