CN103359102A - Trailer valve with throttling function - Google Patents
Trailer valve with throttling function Download PDFInfo
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- CN103359102A CN103359102A CN2013103243763A CN201310324376A CN103359102A CN 103359102 A CN103359102 A CN 103359102A CN 2013103243763 A CN2013103243763 A CN 2013103243763A CN 201310324376 A CN201310324376 A CN 201310324376A CN 103359102 A CN103359102 A CN 103359102A
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- 230000030279 gene silencing Effects 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
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- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The invention relates to a trailer valve with a throttling function. The trailer valve comprises a valve body (50) and an end cover (20), wherein an upper piston (8) is arranged in the valve (50); a control piston (6) is arranged on the lower end of the upper piston (8); a middle piston (7) is arranged in the control piston (6); the lower end of the middle piston (7) is arranged in the lower piston (5); an air supply valve (6) is arranged on the bottom of the lower piston (5); a cavity (H) is formed in the contacting part of the top of the middle piston (7) and the inner surface of the control piston (6); and a through hole is formed in the top of the control piston (6) and is a throttling hole which is communicated with the cavity (H) in the top of the middle piston. When the connection breakage or air leakage occurs on a control pipeline of a braking system of a trailer, the trailer valve can automatically cause the braking function of the trailer; and in addition, a silencing seat (30) is arranged on the bottom of the valve body (50), a silencing net (31) is arranged in the silencing seat (30), noises are eliminated, and environmental friendliness is improved.
Description
Technical field
The present invention relates to a kind of automobile accessory, in particular to a kind of trailer valve with throttling function.
Background technology
Be used for the braking of control trailer or superimposed trailer with the trailer valve of throttling function, be loaded on the tractor truck.Being applicable to trailer is dual-line braking system, and the tractor truck main brake is double-circuit system, stops or the air-break type braking.
For example application number is the Chinese patent of 200720027444.X, and it discloses a kind of more front relay valve, and the area of thrust surface of relay piston upper surface are greater than the area of thrust surface of lower surface; Regulating mechanism is housed in the relay piston, can adjust control mouthful and the air pressure difference of air extractor duct, make the output pressure of air extractor duct after reaching the nominal operation atmospheric pressure value, be unlikely to exceed much than the atmospheric pressure value of control mouth, the brake of back axle can not lagged behind, and the back axle brake can be not a lot of in advance yet, thereby can not affect the brake stability of the front-rear axle of whole vehicle, but when delivery port air pressure is controlled implication pressure instantaneous reduction relatively, the air pressure of gas port and delivery port can not be ended, can cause that pilot piping breaks suddenly.
For example application number is 200820170223.2 Chinese utility model patent again, it discloses a kind of trailer valve with throttling function, comprise main valve body and flow regulating valve, flow regulating valve is divided into throttle valve seat, throttle lever, restriction body, spring perch and upper spring, lower spring, is provided with gas port at the valve body of flow regulating valve; Main valve body is provided with gas port, air extractor duct, gas port and three control mouths, main valve body and flow regulating valve are the die casting integrative-structure, the main valve body and the flow regulating valve that have changed original technology adopt the bolt of flange face directly to tighten method of attachment, the compactness and the reliability that connect have been strengthened, good seal performance, main valve body and flow regulating valve are cast into integrative-structure difficulty of processing is strengthened, and then cause the increase of productive costs.
Summary of the invention
The above-mentioned technological deficiency that exists in order to solve prior art the object of the present invention is to provide a kind of trailer valve with throttling function, opens a cavity in top and the control plunger inside face contact position of middle piston; Open a through hole at the top of control plunger, this through hole is cutoff port, and this cutoff port communicates with the cavity of middle piston head, and this trailer valve can cause the function of trailer braking protection valve automatically when the trailer brake system pilot piping connects fracture or gas leakage.
In order to realize above-mentioned design goal, the scheme that the present invention adopts is as follows:
A kind of trailer valve with throttling function, it comprises valve body and end cap, is provided with upper piston, control plunger, middle piston, lower piston and air feed piston in the valve body, a cavity is opened in the top of described middle piston and control plunger inside face contact position; Open a through hole at the top of control plunger, this through hole is cutoff port, and this cutoff port communicates with the cavity of middle piston head, when the trailer brake system pilot piping connects fracture or gas leakage, cavity C just can not build-up pressure, and this trailer valve can cause trailer braking protection valve automatically.
Preferably, the bottom of described valve body is provided with the seat of eliminating the noise in above-mentioned arbitrary scheme, is provided with silencing net in the seat of eliminating the noise.Silencing net is the gauze filter that plastics are made, and is used for eliminating the sound of the sudden gas flow that is transmitted by inside cavity, and the exhaust sound that product is produced in exhaust process is limited in the acceptable scope of staff.
Preferably, described end cap links together by bolt and valve body in above-mentioned arbitrary scheme, and is provided with the O RunddichtringO between end cap and valve body.
Preferably, described control plunger is positioned at the lower end of upper piston in above-mentioned arbitrary scheme; Middle piston places in the cavity of control plunger; Lower piston is arranged in the lower end of piston; The air feed piston is positioned at the bottom of lower piston.
Preferably, described valve body is provided with the first gas port, the second gas port, the 3rd gas port, the 4th gas port, the 5th gas port and the 6th gas port in above-mentioned arbitrary scheme.
Preferably, the upper end of described lower piston is provided with air intake valve in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme, preferably, form chamber between described end cap and the upper piston.
In above-mentioned arbitrary scheme, preferably, form chamber F between described upper piston and the control plunger.
Preferably, described control plunger and valve interior wall form chamber G in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme, preferably, form cavity C between described lower piston and middle piston, the valve body.
Preferably, the pressurized air of described cavity C acts on area on the piston less than the pressurized air effect of chamber E and the area on the piston in above-mentioned arbitrary scheme.
In above-mentioned arbitrary scheme preferably, the large 20-30kpa of pressure of pressure ratio the first gas port input of described the 6th gas port output.
In above-mentioned arbitrary scheme, preferably, be provided with fixed piston between described lower piston and the valve body.
In above-mentioned arbitrary scheme, preferably, form chamber B between described fixed piston and the lower piston.
In above-mentioned arbitrary scheme, preferably, form chamber A between described lower piston and the air feed piston.
In above-mentioned arbitrary scheme, preferably, be provided with valve member between described lower piston and the air feed piston.
Preferably, the inside of described air feed piston is provided with chamber D in above-mentioned arbitrary scheme.
Preferably, described the first gas port communicates with chamber E in above-mentioned arbitrary scheme.
Preferably, described the second gas port communicates with chamber F by passage in above-mentioned arbitrary scheme.
Preferably, described the 3rd gas port communicates with chamber B in above-mentioned arbitrary scheme.
Preferably, described the 4th gas port communicates with chamber A in above-mentioned arbitrary scheme.
Preferably, described the 6th gas port communicates with cavity C in above-mentioned arbitrary scheme.
Preferably, described the 5th gas port communicates with chamber A in above-mentioned arbitrary scheme.
Preferably, described the 5th gas port top is provided with more secondary piston in above-mentioned arbitrary scheme.
Preferably, the lower end of described middle piston is provided with drain tap in above-mentioned arbitrary scheme.
Preferably, described more secondary piston places more in the early gate in above-mentioned arbitrary scheme, and more secondary piston places in the valve body by spring, more front adjustment seat with early gate fabricate block more.
In order to ensure relatively independent between body cavity chamber A, B, C, D, E, F, G and the H, all installed the O RunddichtringO additional between the parts that each chamber forms, can also guarantee simultaneously upper piston, middle piston, lower piston, air feed piston, control plunger, fixed piston and more in the secondary piston enough amount of compressions arranged, guarantee each piston component when axial motion, can gas blowby between each chamber.
Preferably, when normal vehicle operation, pressurized air enters into chamber A and chamber B from described the 4th gas port and the 3rd gas port respectively in above-mentioned arbitrary scheme, and the pressurized air in the chamber A directly flows to the trailer joint by the 5th gas port; Simultaneously, lower piston moves down under the effect of the atmospheric pressure of chamber B compressed air, and air intake valve is closed when moving to certain position, and drain tap is opened, and the pressurized air of cavity C enters into chamber D by drain tap, at last discharged to atmosphere.
In above-mentioned arbitrary scheme preferably, when the two circuit main brake work of tractor truck, the pressurized air of coming from the first loop enters into chamber E through described the first gas port, move down under the effect of the compressed-air actuated atmospheric pressure of upper piston in chamber E, piston also moves down in driving simultaneously, drain tap is closed when moving to certain position, air intake valve is opened, at this moment the pressurized air in the chamber A enters into cavity C by air intake valve, outputs to brake system by the 6th gas port at last.
In above-mentioned arbitrary scheme preferably, when the first partial failure, only have second servo loop to work, when second servo loop is implemented braking, pressurized air enters in the chamber F through described the second gas port, control plunger moves down under the effect of chamber F atmospheric pressure, piston also moves down in driving simultaneously, drain tap is closed when moving to certain position, air intake valve is opened, pressurized air in the chamber A enters into cavity C through air intake valve, outputs to brake system by the 6th gas port at last.
In above-mentioned arbitrary scheme preferably, because the pressurized air of described cavity C acts on area on the piston less than the pressurized air effect of chamber E and the area on the piston, make the pressure of pressure ratio first gas port of the 6th gas port output that the more front amount of 20 ~ 30kpa be arranged, large 20 ~ the 30kpa of pressure of pressure ratio the first gas port input of i.e. the 6th gas port output, and then the adjusting of the more front amount of realization.
In above-mentioned arbitrary scheme preferably, the pressurized air of described chamber B is emptying by the 3rd gas port, lower piston moves up under the atmospheric pressure effect of chamber A, drive simultaneously valve member and move up, when lower piston moves to when contacting with middle piston, drain tap is closed, air intake valve is opened, pressurized air in the chamber A enters into cavity C by air intake valve, outputs to brake system by the 6th gas port at last, and then realizes braking during standstill.
In above-mentioned arbitrary scheme preferably, when the trailer brake system pilot piping connects fracture or gas leakage, described cavity C just can not build-up pressure, pressurized air enters into chamber F by the second gas port, the pressurized air that enters into chamber F enters into chamber H on the relaying piston by the cutoff port on the control plunger, middle piston moves down under the effect of chamber H inner air pressure, when moving to certain position the assembly valve is pressed onto above the air feed piston, cause the air pressure of the 4th gas port to the five gas ports to be subject to very large throttling action, air intake valve is in open mode simultaneously, air pressure in the trailer loading line is very fast to enter atmosphere by air intake valve and the 6th gas port thereby make, and then realizes making under the effect of trailer emergency relay valve trailer to produce brake action.
Description of drawings
Fig. 1 is the cutaway view according to the trailer valve with throttling function of the present invention.
Fig. 2 is the enlarged drawing according to the I place of trailer valve with throttling function shown in Figure 1 of the present invention.
Working state figure when Fig. 3 first loop for according to the service brake of trailer valve with throttling function shown in Figure 1 of the present invention the time passes into pressurized air.
Working state figure when Fig. 4 second servo loop for according to the service brake of trailer valve with throttling function shown in Figure 1 of the present invention the time passes into pressurized air.
Fig. 5 is for according to the working state figure that automatically causes trailer braking protection valve with the trailer valve of throttling function when the trailer brake system pilot piping connects fracture or gas leakage shown in Figure 1 of the present invention.
Attached number in the figure:
The specific embodiment
The following description only is exemplary and be not in order to limit the disclosure, application or purposes in essence.Below in conjunction with Figure of description the specific embodiment that spring coil of the present invention is pressed into the pressing tool of ball cap is further described.
As shown in Figure 1, trailer valve with throttling function of the present invention, it comprises valve body 50 and end cap 20, is provided with upper piston 8, control plunger 6, middle piston 7, lower piston 5 and air feed piston 1 in the valve body 50, and a cavity H is opened in the top of described middle piston 7 and control plunger 6 inside face contact positions; Open a through hole at the top of control plunger 6, this through hole is cutoff port 9, and this cutoff port 9 communicates with the cavity H of middle piston head.
In the present embodiment, the bottom of described valve body 50 is provided with the seat 30 of eliminating the noise, and is provided with silencing net 31 in the seat 30 of eliminating the noise.The gauze filter that silencing net 31 is made for plastics, for the sound of eliminating the sudden gas flow that is transmitted by inside cavity, the exhaust sound that product is produced in exhaust process is limited in the acceptable scope of staff.
In the present embodiment, described end cap 20 links together by bolt and valve body 50, and is provided with the O RunddichtringO between end cap 20 and valve body 50, guarantees chamber E and isolated from atmosphere; Guaranteed can not discharge from end cap 20 and the junction of valve body 50 after pressurized air from the first gas port 41 enters into chamber E, thereby increased amount of compression and the leak tightness of chamber E Air, made to have guaranteed to have enough amount of compressions in the two circuit main brake process of tractor truck, to work.
In the present embodiment, described control plunger 6 is positioned at the lower end of upper piston 8; Middle piston 7 places in the cavity of control plunger 6; Lower piston 5 is arranged in the lower end of piston 7; Air feed piston 1 is positioned at the bottom of lower piston 5.
In the present embodiment, described valve body 50 is provided with the first gas port 41, the second gas port 42, the 3rd gas port 43, the 4th gas port 33, the 6th gas port 22 and the 5th gas port 21.
In the present embodiment, form chamber E between described end cap 20 and the upper piston 8.
In the present embodiment, form chamber F between described upper piston 8 and the control plunger 6.
In the present embodiment, described control plunger 6 forms chamber G with valve body 50 inwalls.
In the present embodiment, form cavity C between described lower piston 5 and the middle piston 7.
In the present embodiment, the area that acts on the piston 6 of the pressurized air of described cavity C acts on area on the piston 6 less than the pressurized air of chamber E.
In the present embodiment, the large 20-30kpa of pressure of pressure ratio the first gas port 41 inputs of described the 6th gas port 22 outputs.
In the present embodiment, be provided with fixed piston 11 between described lower piston 5 and the valve body 50.
In the present embodiment, form chamber B between described fixed piston 11 and the lower piston 5.
In the present embodiment, form chamber A between described lower piston 5 and the air feed piston 1.
In the present embodiment, be provided with valve member 2 between described lower piston 5 and the air feed piston 1.
In the present embodiment, the inside of described air feed piston 1 is provided with chamber D.
In the present embodiment, described the first gas port 41 communicates with chamber E.
In the present embodiment, described the second gas port 42 communicates with chamber F by access ramp 40.
In the present embodiment, described the 3rd gas port 43 communicates with chamber B.
In the present embodiment, described the 4th gas port 33 communicates with chamber A.
In the present embodiment, described the 6th gas port 22 communicates with cavity C.
In the present embodiment, described the 5th gas port 21 communicates with chamber A.
In the present embodiment, described the 5th gas port 21 tops are provided with more secondary piston 12.
In the present embodiment, described more secondary piston 12 places more in the early gate 17, and more secondary piston 12 places in the valve body 50 by spring 13, more front adjustment seat 10 with early gate 17 fabricate blocks more.
Chamber G communicates with the cavity C of valve body 50 by getting over early gate air supply channel 14, relatively controls the more front value of air pressure for regulation output air pressure when control air pressure produces.
Fixed piston 11 is contained in the top of valve piston 5, by the O RunddichtringO chamber B is separated with cavity C, guarantees relatively independently, also is supported with spring in fixed piston 11 inside simultaneously, guarantees that spring position can not be offset.
More front device by early gate more 17 with more be limited to valve body 50 inside by spring 13 and more front adjustment seat 10 after secondary piston 12 combinations, wherein more front adjustment seat 10 adopts thread connecting mode to be fixed with valve body 50, its sealing guarantees and isolated from atmosphere by O RunddichtringO 18, has also formed simultaneously more front valve port 15 and more front rubber valve actinal surface 16.
In the present embodiment, because the pressurized air of described cavity C acts on area on the piston 6 less than the pressurized air effect of chamber E and the area on the piston 6, make the pressure of pressure ratio first gas port 41 of the 6th gas port 22 output that the more front amount of 20 ~ 30kpa be arranged, large 20 ~ the 30kpa of pressure of pressure ratio the first gas port 41 inputs of i.e. the 6th gas port 22 outputs, and then the adjusting of the more front amount of realization.
When the 5th gas port 21 has air pressure output, air pressure also can act on the rubber valve 17 by more front valve port 15, and overcome spring 13 to left movement, the more front valve port face 16 of rubber this moment breaks away from more front valve port 15, making gas enter the G chamber by early gate passage 14 more acts on the control plunger 6, make control plunger 6 remain on balance position to this generation antagonistic force and the counteracting of F chamber positive acting power, be control position, this delivery port is controlled mouth relatively have more front amount in the setting range because spring 13 can utilize more front adjustment seat 10 to regulate.
Next consult shown in Figure 2, according to the enlarged drawing at the I place of trailer valve with throttling function shown in Figure 1 of the present invention.Be provided with air intake valve 3 and drain tap 4 between lower piston 5 and the middle piston 7, and drain tap 4 is positioned at the top of air intake valve 3.Drain tap 4 is arranged in the bottom of piston 7 inner chambers; Air intake valve 3 is positioned on the valve body 5.This trailer valve off working state, air intake valve 3 is in closed condition, and drain tap 4 is in open mode.When normal vehicle operation, can promote drain tap 4 from the pressurized air of the 3rd gas port 43 and the 4th gas port 33 and open, this moment, air intake valve 3 was closed, and caused the pressurized air in the cavity C to enter into the D chamber through drain tap 4, at last discharged to atmosphere.
When normal vehicle operation, pressurized air enters into chamber A and chamber B from described the 4th gas port 33 and the 3rd gas port 43 respectively, and the pressurized air in the chamber A directly flows to the trailer joint by the 5th gas port 21; Simultaneously, lower piston 5 is under the effect of the atmospheric pressure of chamber B compressed air, move down, projection when moving to certain position in the inner chamber of lower piston 5 is resisted against valve member 2 air intake valve 3 is closed, drain tap 4 is opened simultaneously, at this moment the pressurized air of cavity C enters into chamber D by drain tap 4, finally by the silencing net 31 in the seat 30 of cross eliminating the noise discharged to atmosphere.
Working state figure when the first loop passes into pressurized air during as shown in Figure 3, according to the service brake of trailer valve with throttling function shown in Figure 1 of the present invention.When the two circuit main brake work of tractor truck, the pressurized air of coming from the first loop enters into chamber E through described the first gas port 41, move down under the effect of the compressed-air actuated atmospheric pressure of upper piston 8 in chamber E, drive with the contacted middle piston 7 of upper piston 8 inwalls simultaneously and also move down, the bottom surface of piston 7 contacts with air intake valve 3 in when moving to certain position, at this moment drain tap 4 is closed, air intake valve 3 is opened, pressurized air from the 4th gas port 33 enters in the chamber A, then enter into cavity C by air intake valve 3, output to brake system by the 6th gas port 22 at last.
Working state figure when second servo loop passes into pressurized air during as shown in Figure 4, according to the service brake of trailer valve with throttling function shown in Figure 1 of the present invention.When the first partial failure, only have second servo loop to work, when second servo loop is implemented braking, pressurized air enters in the chamber F by access ramp 40 through described the second gas port 42, control plunger 6 moves down under the effect of chamber F atmospheric pressure, piston 7 also moves down in driving simultaneously, the bottom surface of piston 7 contacts with valve member 2 in when moving to certain position, drain tap 4 is closed, air intake valve 3 is opened, at this moment enter into cavity C through air intake valve 3 after entering into chamber A from the pressurized air of the 4th gas port 33, output to brake system by the 6th gas port 22 at last.
In the present embodiment, when the pressurized air of described chamber B is emptying by the 3rd gas port 43, chamber B does not just exist in the air pressure, at this moment the pressurized air from the 4th gas port 33 enters among the chamber A, pressurized air in the chamber A promotes lower piston 5 and moves up, and drives simultaneously the valve member 2 that is positioned at lower piston 5 bottoms and moves up.When valve member 2 moves to when contacting with middle piston 7, drain tap 4 is closed, air intake valve 3 is opened, pressurized air from the 4th gas port 33 enters among the chamber A, pressurized air in the chamber A enters into cavity C by air intake valve 3, output to brake system by the 6th gas port 22 at last, and then realize braking during standstill.
Consult at last shown in Figure 5, according to the working state figure that when the trailer brake system pilot piping connects fracture or gas leakage, automatically causes trailer braking protection valve with the trailer valve of throttling function shown in Figure 1 of the present invention.When the trailer brake system pilot piping connects fracture or gas leakage, described cavity C just can not build-up pressure, pressurized air enters into chamber F by the second gas port 42, the pressurized air that enters into chamber F enters into chamber H on the relaying piston 7 by the cutoff port 9 on the control plunger 6, middle piston 7 moves down under the effect of chamber H inner air pressure, when moving to certain position assembly valve 2 is pressed onto above the air feed piston 1, cause the air pressure of the 4th gas port 33 to the 5th gas ports 21 to be subject to very large throttling action, air intake valve 3 is in open mode simultaneously, air pressure in the trailer loading line is very fast to enter atmosphere by air intake valve 3 and the 6th gas port 22 thereby make, and then realizes making under the effect of trailer emergency relay valve trailer to produce brake action.
In order to make the pressurized air that enters in the chamber F can enter into equably chamber H by the cutoff port 9 of upper piston 8, cutoff port 9 is arranged on the center at upper piston 8 tops, can not have after like this in pressurized air enters into chamber H that partial pressure power is large and some regional atmospheric pressure is less, thereby the phenomenon of skew occurs when causing middle piston 7 to move down.
In sum, trailer valve with throttling function of the present invention is opened a through hole at the top of control plunger 6, this through hole is cutoff port 9, this cutoff port 9 communicates with the cavity H of middle piston head, when the trailer brake system pilot piping connects fracture or gas leakage, this trailer valve can cause the function of trailer braking protection valve automatically, has avoided unexpected generation; In addition, be provided with the seat 30 of eliminating the noise in the bottom of valve body 50, be provided with silencing net 31 in the noise elimination seat 30, eliminated noise, the gauze filter that silencing net 31 is made for plastics, be used for eliminating the sound of the sudden gas flow that is transmitted by inside cavity, the exhaust sound that product is produced in exhaust process is limited in the acceptable scope of staff.
It will be apparent to those skilled in the art that the trailer valve with throttling function of the present invention comprises the combination in any of each several part in this specification sheets.As space is limited and in order to make specification sheets simple and clear, these combinations not to be introduced one by one in detail at this, but after having seen this specification sheets, the scope of the present invention that the combination in any of the each several part that is made of this specification sheets consists of is self-evident.
Claims (10)
1. trailer valve with throttling function, it comprises valve body (50) and end cap (20), be provided with upper piston (8), control plunger (6), middle piston (7), lower piston (5) and air feed piston (1) in the valve body (50), it is characterized in that: a cavity (H) is opened in the top of described middle piston (7) and control plunger (6) inside face contact position; A through hole is opened at top at control plunger (6), and this through hole is cutoff port (9), and this cutoff port (9) communicates with the cavity (H) of middle piston head.
2. the trailer valve with throttling function as claimed in claim 1 is characterized in that: the bottom of described valve body (50) is provided with the seat (30) of eliminating the noise, and is provided with silencing net (31) in the seat (30) of eliminating the noise.
3. the trailer valve with throttling function as claimed in claim 1, it is characterized in that: described end cap (20) links together by bolt and valve body (50), and is provided with the O RunddichtringO between end cap (20) and valve body (50).
4. the trailer valve with throttling function as claimed in claim 1, it is characterized in that: described control plunger (6) is positioned at the lower end of upper piston (8); Middle piston (7) places in the cavity of control plunger (6); Lower piston (5) is arranged in the lower end of piston (7); Air feed piston (1) is positioned at the bottom of lower piston (5).
5. the trailer valve with throttling function as claimed in claim 1, it is characterized in that: described valve body (50) is provided with the first gas port (41), the second gas port (42), the 3rd gas port (43), the 4th gas port (33), the 6th gas port (22) and the 5th gas port (21).
6. such as claim 1 or 4 described trailer valves with throttling function, it is characterized in that: the upper end of described lower piston (5) is provided with air intake valve (3).
7. such as claim 1 or 3 described trailer valves with throttling function, it is characterized in that: form chamber (E) between described end cap (20) and the upper piston (8).
8. the trailer valve with throttling function as claimed in claim 1 is characterized in that: form chamber (F) between described upper piston (8) and the control plunger (6).
9. the trailer valve with throttling function as claimed in claim 1 is characterized in that: the inwall formation chamber (G) of described control plunger (6) and valve body (50).
10. the trailer valve with throttling function as claimed in claim 1 is characterized in that: form chamber (C) between described lower piston (5) and middle piston (7), the valve body (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324376.3A CN103359102B (en) | 2013-07-30 | 2013-07-30 | Trailer valve with throttling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324376.3A CN103359102B (en) | 2013-07-30 | 2013-07-30 | Trailer valve with throttling function |
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| CN103359102A true CN103359102A (en) | 2013-10-23 |
| CN103359102B CN103359102B (en) | 2015-04-08 |
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| CN201310324376.3A Active CN103359102B (en) | 2013-07-30 | 2013-07-30 | Trailer valve with throttling function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953874A (en) * | 2017-12-22 | 2018-04-24 | 易孝威 | A kind of automatically controlled emergency braking system for pneumatic brake |
| CN108248591A (en) * | 2018-01-12 | 2018-07-06 | 瑞立集团瑞安汽车零部件有限公司 | Integrated form EBS Novel trailer valves with throttling function |
| CN114829217A (en) * | 2019-12-13 | 2022-07-29 | 克诺尔商用车制动系统有限公司 | Valve device |
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| GB2016100A (en) * | 1978-03-13 | 1979-09-19 | Wabco Westinghouse Gmbh | Trailer relay valve for fluid pressure braking system |
| DE3044228A1 (en) * | 1980-11-25 | 1982-06-03 | Graubremse Gmbh, 6900 Heidelberg | Motor vehicle-trailer dual brake circuit - has throttle valve connected in parallel to stop valve, integral with trailer control valve |
| CN1876456A (en) * | 2005-06-11 | 2006-12-13 | 淄博龙达汽车配件制造有限公司 | Double pipe electrically-controlled trailer brake valve |
| CN201026866Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动系统有限公司 | Dual pipeline braking valve for trailer assembly |
| CN201026867Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动系统有限公司 | Dual pipeline braking valve for trailer assembly |
| CN103085802A (en) * | 2013-01-25 | 2013-05-08 | 瑞立集团瑞安汽车零部件有限公司 | Trailer control valve |
| CN203427780U (en) * | 2013-07-30 | 2014-02-12 | 瑞立集团瑞安汽车零部件有限公司 | Trailer valve with throttling function |
-
2013
- 2013-07-30 CN CN201310324376.3A patent/CN103359102B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2016100A (en) * | 1978-03-13 | 1979-09-19 | Wabco Westinghouse Gmbh | Trailer relay valve for fluid pressure braking system |
| DE3044228A1 (en) * | 1980-11-25 | 1982-06-03 | Graubremse Gmbh, 6900 Heidelberg | Motor vehicle-trailer dual brake circuit - has throttle valve connected in parallel to stop valve, integral with trailer control valve |
| CN1876456A (en) * | 2005-06-11 | 2006-12-13 | 淄博龙达汽车配件制造有限公司 | Double pipe electrically-controlled trailer brake valve |
| CN201026866Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动系统有限公司 | Dual pipeline braking valve for trailer assembly |
| CN201026867Y (en) * | 2006-12-31 | 2008-02-27 | 万安集团诸暨汽车制动系统有限公司 | Dual pipeline braking valve for trailer assembly |
| CN103085802A (en) * | 2013-01-25 | 2013-05-08 | 瑞立集团瑞安汽车零部件有限公司 | Trailer control valve |
| CN203427780U (en) * | 2013-07-30 | 2014-02-12 | 瑞立集团瑞安汽车零部件有限公司 | Trailer valve with throttling function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953874A (en) * | 2017-12-22 | 2018-04-24 | 易孝威 | A kind of automatically controlled emergency braking system for pneumatic brake |
| CN108248591A (en) * | 2018-01-12 | 2018-07-06 | 瑞立集团瑞安汽车零部件有限公司 | Integrated form EBS Novel trailer valves with throttling function |
| CN114829217A (en) * | 2019-12-13 | 2022-07-29 | 克诺尔商用车制动系统有限公司 | Valve device |
| CN114829217B (en) * | 2019-12-13 | 2023-09-22 | 克诺尔商用车制动系统有限公司 | Valve device |
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| Publication number | Publication date |
|---|---|
| CN103359102B (en) | 2015-04-08 |
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Denomination of invention: Trailer valve with throttling function Granted publication date: 20150408 Pledgee: Wenzhou Ruian sub branch of China CITIC Bank Co.,Ltd. Pledgor: RUILI GROUP RUIAN AUTO PARTS Co.,Ltd. Registration number: Y2020330000954 |
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