CN104627156B - Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof - Google Patents
Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof Download PDFInfo
- Publication number
- CN104627156B CN104627156B CN201410700873.3A CN201410700873A CN104627156B CN 104627156 B CN104627156 B CN 104627156B CN 201410700873 A CN201410700873 A CN 201410700873A CN 104627156 B CN104627156 B CN 104627156B
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- relay
- gas
- chamber
- 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 - Fee Related
Links
- 230000009466 transformation Effects 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims description 43
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 239000011148 porous material Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 210000003437 trachea Anatomy 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
Abstract
Provided are a three-level pressure transformation relay valve and a three-level pressure transformation relay valve kit thereof. A counter voltage air chamber A and a counter voltage air chamber B which are of different sizes are arranged in a lower valve body of the three-level pressure transformation relay valve, and when the three-level pressure transformation relay valve is communicated with a voltage regulating pipeline, different counter voltages can be produced in the two air chambers respectively, so that three-level pressure transformation of the relay valve is achieved to adapt different load conditions. The three-level pressure transformation relay valve kit makes a three-grade change-over switch be combined with the three-level pressure transformation relay valve, the operating conditions of the relay valve are regulated through the three-grade change-over switch, and the switch among the three levels is achieved; the structure is simple and practical, and the stability is good.
Description
Technical field
The present invention relates to the technical field of brake system of car, more particularly to a kind of three-level variable pressure relay valve and its three-level
Variable pressure relay valve external member.
Background technology
Relay valve belongs to a part for automobile air brake brakes, and in the brakes of truck, relay valve plays contracting
The effect of short reaction time and pressure setup time.The enterprising QI KOU of relay valve connects gas receiver, and gas outlet connects brake chamber.When stepping on
During lower brake pedal, the output pressure of brake valve is input into as the control pressure of relay valve, by air inlet under control pressure effect
Valve is pushed open, and then compressed air just directly enters brake chamber by air inlet by gas receiver, and without flowing through brake valve, this is big
The loading line distance of brake chamber is shortened greatly, the gas replenishment process of brake chamber is accelerated, and then is substantially reduced brake
Response time.Therefore relay valve is called acceleration valve.
Relay valve is used for the end of long pipe runs, makes the compressed air of gas receiver be rapidly filled with brake chamber, such as in trailer or
In semitrailer brake system.In prior art, generally by the different lifting surface areas for utilizing big piston and valve piston, it is right to realize
Two grades of unlatchings of intake valve, so as to realize high intensity braking during the soft braking and heavy duty during zero load；Two grades of changes can only be realized
Change, adapt to heavy duty and unloaded two kinds of situations, but due to lorry be sometimes in medium load, existing relay valve and
The part of control relay valve is not the situation for being very suitable for normal loading, is had much room for improvement.
The content of the invention
The purpose of the present invention is：A kind of simple structure, three-level variable pressure relay valve easy to use and its three-level transformation are provided
Servo valve kit.
The technical scheme is that：A kind of three-level variable pressure relay valve, including upper lid, valve body, relay piston, valve group
Part, and the gas-charging connection and control joint of lid are arranged on, it is arranged on the braking joint of body base；It is characterized in that：Upper lid
It is connected with valve seal；In body cavity, sealing shroud is equipped with relay piston, is formed between the upper surface of relay piston and upper lid
Normal pressure room,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with valve body
The step surface third matched with step vizard, the step surface fourth matched with step surface second, in step vizard and step surface the third diameter shape
Into counter-pressure air chamber first, counter-pressure air chamber second is formed between step surface second and step surface fourth, is provided with and back-pressure in valve body side
The pressure regulation interface second that the pressure regulation interface first of strength room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, in valve box
Portion arranges valve port, and relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter use of valve port
In control is opened and closed to valve member.
Inflation tube chamber is provided with the upside of upper lid, gas-charging connection is located at one end of inflation tube chamber, inflates the other end of tube chamber
Sealing is fixed with plug, and control joint is connected to inflation tube chamber side wall；Gas tube cavity inner sleeve be equipped with piston body, piston body with
Thrust spring is connected between plug；The left piston near gas-charging connection and the right work near plug are provided with the piston body
Plug, only has when inflate from gas-charging connection that left piston is in sealing contact with inflation lumen wall and only right piston and gas tube when resetting
Chamber is in sealing contact, also, right piston is moved to right right piston when making control joint be connected with upper cover cavity and be resetted and moves to left and makes when inflating
Control joint is isolated with upper cover cavity.
The left end of the piston body arranges inner chamber, and the check valve with gas-charging connection fitted seal is set with inner chamber.
The intracavity sidewall of the piston body left end is provided with gas outlet, gas outlet is located at the left end of left piston；In valve body
Side is provided with the aerating pipe connected with trailer gas bomb；The gas outlet of piston body left end inner chamber is connected with aerating pipe.
The valve member includes that sealing shroud is fixed in the valve seat of valve box bottom, and hollow valve is set with valve seat
Door, valve upper end are docked with valve port sealing, and valve spring is connected between valve seat and valve；Valve body on the outside of valve port
Inner chamber is connected with braking joint, and the valve box on the inside of valve port is connected with inlet suction port, in valve cavity and the bottom conduit
Chamber is connected as exhaust passage.
Dust-proof cushion is provided with by screw in the middle part of the lower port of the valve seat.
A kind of three-level variable pressure relay valve external member, including three-level variable pressure relay valve and third gear permutator, is characterized in that：
Described three-level variable pressure relay valve includes lid, valve body, relay piston, valve member, and is arranged on lid
Gas-charging connection and control joint, are arranged on the braking joint of body base；
Upper lid is connected with valve seal；In body cavity sealing shroud be equipped with relay piston, the upper surface of relay piston with
Normal pressure room is formed between upper lid,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with valve body
The step surface third matched with step vizard, the step surface fourth matched with step surface second, in step vizard and step surface the third diameter shape
Into counter-pressure air chamber first, counter-pressure air chamber second is formed between step surface second and step surface fourth, is provided with and back-pressure in valve body side
The pressure regulation interface second that the pressure regulation interface first of strength room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, in valve box
Portion arranges valve port, and relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter use of valve port
In control is opened and closed to valve member；
Described third gear permutator includes upper cover body, lower base, the conversion installed between upper cover body and lower base
Valve, the bottom of described lower base are provided with an air inlet and two gas outlets, and two gas outlets pass through pipeline and institute respectively
Pressure regulation interface first, the pressure regulation interface second connection stated, the top of lower base is prominent cylinder table, and the bottom of described upper cover body is
The sleeve matched with cylinder table, is provided with rotary body in sleeve, stretches out Long Circle plug and insert in the middle part of the lower surface of the rotary body
Enter to inside the Long Circle pit of the matching of conversion valve upper surface, upper cover body is stretched out on rotary body top,
Described conversion valve be located at rotary body lower surface and the upper surface of cylinder table between, conversion valve lower surface with
It is palette between the upper surface of cylinder table, the conversion valve is disc, and conversion valve diameter matched with sleeve diameter, turn
Change valve thickness to match with the distance between cylinder table upper surface, the lower surface of rotary body；
The upper surface of described cylinder table is provided with and is connected and be distributed on same half respectively with air inlet and two gas outlets
Three pores on circumference, are provided with steam vent at the upper surface center of cylinder table, and the steam vent passes lower base and atmosphere,
The groove first of semicircular arc is provided with the lower surface of conversion valve；1/4 circle is additionally provided with the lower surface of conversion valve
The groove second of arc, is additionally provided with flow guide recesses third in the lower surface of conversion valve, third one end of flow guide recesses communication groove second, separately
The circle centre position that one end is located at conversion valve lower surface is corresponding with the steam vent of cylinder table upper surface, groove first cloth relative with groove second
Put, groove first and groove second form circular annular region in rotary course and has overlap with three pores of cylinder table upper surface.
Coordinate for piston area between rotation outside and sleeve medial surface, the plug inside of rotary body bottom is spring
Chamber, is provided with spring inside spring cavity；The lower surface of described rotary body is provided with annular groove, is provided with described groove first
The upper pore of conversion valve is penetrated to top, pore is connected with inside annular groove on this；If rotary body top is downward being provided with
Dry retaining spring chamber, inside is provided with retaining spring of the upper end with ball, is provided with the upper surface in the sleeve of upper cover body
The positioning hole of matching；Sealing structure, cylinder table side and sleeve are provided between rotary body upper side and upper cover body internal face
The internal face of lower end is provided with sealing structure；It is connected by screw between upper cover body and lower base；Water is provided with the sidepiece of upper cover body
It is flattened go out gear indicate disk, rotary body top stretch out the part of upper cover body be provided with indicate knob.
Inflation tube chamber is provided with the upside of upper lid, gas-charging connection is located at one end of inflation tube chamber, inflates the other end of tube chamber
Sealing is fixed with plug, and control joint is connected to inflation tube chamber side wall；Gas tube cavity inner sleeve be equipped with piston body, piston body with
Thrust spring is connected between plug；The left piston near gas-charging connection and the right work near plug are provided with the piston body
Plug, only has when inflate from gas-charging connection that left piston is in sealing contact with inflation lumen wall and only right piston and gas tube when resetting
Chamber is in sealing contact, also, right piston is moved to right right piston when making control joint be connected with upper cover cavity and be resetted and moves to left and makes when inflating
Control joint is isolated with upper cover cavity；The left end of the piston body arranges inner chamber, is set with and coordinates close with gas-charging connection in inner chamber
The check valve of envelope；The intracavity sidewall of the piston body left end is provided with gas outlet, gas outlet is located at the left end of left piston；In valve
Body side is provided with the aerating pipe connected with trailer gas bomb；The gas outlet of piston body left end inner chamber is connected with aerating pipe.
The valve member includes that sealing shroud is fixed in the valve seat of valve box bottom, and hollow valve is set with valve seat
Door, valve upper end are docked with valve port sealing, and valve spring is connected between valve seat and valve；Valve body on the outside of valve port
Inner chamber is connected with braking joint, and the valve box on the inside of valve port is connected with inlet suction port, in valve cavity and the bottom conduit
Chamber is connected as exhaust passage；Dust-proof cushion is provided with by screw in the middle part of the lower port of the valve seat.
The technique effect of the present invention：
The three-level variable pressure relay valve arranges two counter-pressure air chamber first not of uniform size and second in lower valve body, by itself and tune
After pressure pipe road is connected, different counter-pressures can be produced in two air chambers respectively, so that the relay valve realizes three-level transformation,
To adapt to different load conditions.
Third gear permutator is combined by the three-level variable pressure relay valve external member with above-mentioned three-level variable pressure relay valve, is turned by third gear
The working condition to adjust relay valve of switch is changed, the conversion between three-level, simple and practical, good stability is realized.
Description of the drawings
Fig. 1 is the main view cross-sectional view of three-level variable pressure relay valve；
Fig. 2 is the left view cross-sectional view of three-level variable pressure relay valve；
Fig. 3 is the overlooking the structure diagram of three-level variable pressure relay valve；
Fig. 4 is the main view cross-sectional view of relay valve third gear permutator；
Fig. 5 is the left view cross-sectional view of relay valve third gear permutator；
Fig. 6 is the overlooking the structure diagram of relay valve third gear permutator；
B-B cross-sectional views of the Fig. 7 for Fig. 5；
A-A cross-sectional views of the Fig. 8 for Fig. 4；
Main view cross-sectional views of the Fig. 9 for conversion valve；
Figure 10 regards cross-sectional view for the left view of conversion valve；
Figure 11 is one of dimensional structure diagram of conversion valve；
Figure 12 for the dimensional structure diagram of conversion valve two；
Position views of the Figure 13 for relay valve conversion valve of the third gear permutator in heavy duty；
Figure 14 is the position view of relay valve conversion valve of the third gear permutator when mark is carried；
Position views of the Figure 15 for relay valve conversion valve of the third gear permutator in zero load；
Figure 16 is the attachment structure figure of the three-level variable pressure relay valve external member；
1. screw, 2. plain washer, 3. dust-proof cushion, 4. exhaust seat, 5. circlip, 7. 6.O type circles, valve spring, 8.O types
Circle, 9. valve, 10.O type circles, 11. plugs, 12. check rings, 13. back-moving springs, 14.O type circles, 15. relay pistons, 16.O
Type circle, 17.O type circles, 18.O type circles, 19.O type circles, 20.O type circles, 21.O type circles, 22. planar sealing pads, 23. valve ports, 24.
Joint, 25. pistons, 26. minor valves, 27. springs, 28.O type circles, 29. springs, 30.O type circles, lid, 32. plugs, 33.O on 31.
Type circle, 34. valve bodies, 35. screws, 36. spring pads, 37. counter-pressure air chamber first, 38. counter-pressure air chamber second, 39. normal pressure air chambers,
40a. control joints one, 40b. control joints two, 41. inflation tube chamber, 42. left pistons, 43. right pistons, 44. filling channels, 45.
Trailer gas bomb joint, 46. bottom conduits, 47a. braking joints one, 47b. braking joints two, 48. are valve box, and 49. is valve
Doorway, 50. pressure regulation interface first, 51. pressure regulation interface second；
101. knobs, 102. rotary bodies, 103. gears indicate disk, 104. balls, 105. retaining springs, 106. plugs,
107. retaining spring chambers, 108. upper cover bodies, 109. spring cavitys, 110. springs, 111. conversion valves, 112. lower bases, 113.
Steam vent, 114. screws, 115. gas outlets, 116. air inlets, 117. pores, the sleeve of 118. upper cover bodies；
111-1. Long Circle pits, the upper pores of 111-2., 111-3. groove second, 111-4. grooves third, 111-5. grooves
First；
1001. third gear permutatoies, 1002. pipelines, 1003. three-level variable pressure relay valves.
Specific embodiment
Embodiment：Referring to Fig. 1-3, a kind of three-level variable pressure relay valve in figure, including upper lid, valve body, relay piston, valve group
Part, and the gas-charging connection and control joint of lid are arranged on, it is arranged on the braking joint of body base；Upper lid and valve seal
Connection；In body cavity, sealing shroud is equipped with relay piston, and normal pressure room is formed between the upper surface of relay piston and upper lid,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with valve body
The step surface third matched with step vizard, the step surface fourth matched with step surface second, in step vizard and step surface the third diameter shape
Into counter-pressure air chamber first, counter-pressure air chamber second is formed between step surface second and step surface fourth, is provided with and back-pressure in valve body side
The pressure regulation interface second that the pressure regulation interface first of strength room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, in valve box
Portion arranges valve port, and relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter use of valve port
In control is opened and closed to valve member.
Inflation tube chamber is provided with the upside of upper lid, gas-charging connection is located at one end of inflation tube chamber, inflates the other end of tube chamber
Sealing is fixed with plug, and control joint is connected to inflation tube chamber side wall；Gas tube cavity inner sleeve be equipped with piston body, piston body with
Thrust spring is connected between plug；The left piston near gas-charging connection and the right work near plug are provided with the piston body
Plug, only has when inflate from gas-charging connection that left piston is in sealing contact with inflation lumen wall and only right piston and gas tube when resetting
Chamber is in sealing contact, also, right piston is moved to right right piston when making control joint be connected with upper cover cavity and be resetted and moves to left and makes when inflating
Control joint is isolated with upper cover cavity.
The left end of the piston body arranges inner chamber, and the check valve with gas-charging connection fitted seal is set with inner chamber.Institute
The intracavity sidewall for stating piston body left end is provided with gas outlet, and gas outlet is located at the left end of left piston；Valve body side be provided with
The aerating pipe of trailer gas bomb connection；The gas outlet of piston body left end inner chamber is connected with aerating pipe.
The valve member includes that sealing shroud is fixed in the valve seat of valve box bottom, and hollow valve is set with valve seat
Door, valve upper end are docked with valve port sealing, and valve spring is connected between valve seat and valve；Valve body on the outside of valve port
Inner chamber is connected with braking joint, and the valve box on the inside of valve port is connected with inlet suction port, in valve cavity and the bottom conduit
Chamber is connected as exhaust passage.Dust-proof cushion is provided with by screw in the middle part of the lower port of the valve seat.
The operation principle of the three-level variable pressure relay valve, referring to application number：201410197504.7 electrically controlled trailer promptly after
The operation principle of dynamic valve, its self-locking and plus air pressure after the process that enables be prior art in this not go into detail.
Embodiment two：Referring to Fig. 1-16, a kind of three-level variable pressure relay valve external member in figure, including three-level variable pressure relay valve and three
Shelves permutator,
Described three-level variable pressure relay valve includes lid, valve body, relay piston, valve member, and is arranged on lid
Gas-charging connection and control joint, are arranged on the braking joint of body base；
Upper lid is connected with valve seal；In body cavity sealing shroud be equipped with relay piston, the upper surface of relay piston with
Normal pressure room is formed between upper lid,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with valve body
The step surface third matched with step vizard, the step surface fourth matched with step surface second, in step vizard and step surface the third diameter shape
Into counter-pressure air chamber first, counter-pressure air chamber second is formed between step surface second and step surface fourth, is provided with and back-pressure in valve body side
The pressure regulation interface second that the pressure regulation interface first of strength room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, in valve box
Portion arranges valve port, and relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter use of valve port
In control is opened and closed to valve member；
Described third gear permutator includes upper cover body, lower base, the conversion installed between upper cover body and lower base
Valve, the bottom of described lower base are provided with an air inlet and two gas outlets, and two gas outlets pass through pipeline and institute respectively
Pressure regulation interface first, the pressure regulation interface second connection stated, the top of lower base is prominent cylinder table, and the bottom of described upper cover body is
The sleeve matched with cylinder table, is provided with rotary body in sleeve, stretches out Long Circle plug and insert in the middle part of the lower surface of the rotary body
Enter to inside the Long Circle pit of the matching of conversion valve upper surface, upper cover body is stretched out on rotary body top,
Described conversion valve be located at rotary body lower surface and the upper surface of cylinder table between, conversion valve lower surface with
It is palette between the upper surface of cylinder table, the conversion valve is disc, and conversion valve diameter matched with sleeve diameter, turn
Change valve thickness to match with the distance between cylinder table upper surface, the lower surface of rotary body；
The upper surface of described cylinder table is provided with and is connected and be distributed on same half respectively with air inlet and two gas outlets
Three pores on circumference, are provided with steam vent at the upper surface center of cylinder table, and the steam vent passes lower base and atmosphere,
The groove first of semicircular arc is provided with the lower surface of conversion valve；1/4 circle is additionally provided with the lower surface of conversion valve
The groove second of arc, is additionally provided with flow guide recesses third in the lower surface of conversion valve, third one end of flow guide recesses communication groove second, separately
The circle centre position that one end is located at conversion valve lower surface is corresponding with the steam vent of cylinder table upper surface, groove first cloth relative with groove second
Put, groove first and groove second form circular annular region in rotary course and has overlap with three pores of cylinder table upper surface.
Coordinate for piston area between rotation outside and sleeve medial surface, the plug inside of rotary body bottom is spring
Chamber, is provided with spring inside spring cavity；The lower surface of described rotary body is provided with annular groove, is provided with described groove first
The upper pore of conversion valve is penetrated to top, pore is connected with inside annular groove on this；If rotary body top is downward being provided with
Dry retaining spring chamber, inside is provided with retaining spring of the upper end with ball, is provided with the upper surface in the sleeve of upper cover body
The positioning hole of matching；Sealing structure, cylinder table side and sleeve are provided between rotary body upper side and upper cover body internal face
The internal face of lower end is provided with sealing structure；It is connected by screw between upper cover body and lower base；Water is provided with the sidepiece of upper cover body
It is flattened go out gear indicate disk, rotary body top stretch out the part of upper cover body be provided with indicate knob.
Inflation tube chamber is provided with the upside of upper lid, gas-charging connection is located at one end of inflation tube chamber, inflates the other end of tube chamber
Sealing is fixed with plug, and control joint is connected to inflation tube chamber side wall；Gas tube cavity inner sleeve be equipped with piston body, piston body with
Thrust spring is connected between plug；The left piston near gas-charging connection and the right work near plug are provided with the piston body
Plug, only has when inflate from gas-charging connection that left piston is in sealing contact with inflation lumen wall and only right piston and gas tube when resetting
Chamber is in sealing contact, also, right piston is moved to right right piston when making control joint be connected with upper cover cavity and be resetted and moves to left and makes when inflating
Control joint is isolated with upper cover cavity；The left end of the piston body arranges inner chamber, is set with and coordinates close with gas-charging connection in inner chamber
The check valve of envelope；The intracavity sidewall of the piston body left end is provided with gas outlet, gas outlet is located at the left end of left piston；In valve
Body side is provided with the aerating pipe connected with trailer gas bomb；The gas outlet of piston body left end inner chamber is connected with aerating pipe.
The valve member includes that sealing shroud is fixed in the valve seat of valve box bottom, and hollow valve is set with valve seat
Door, valve upper end are docked with valve port sealing, and valve spring is connected between valve seat and valve；Valve body on the outside of valve port
Inner chamber is connected with braking joint, and the valve box on the inside of valve port is connected with inlet suction port, in valve cavity and the bottom conduit
Chamber is connected as exhaust passage；Dust-proof cushion is provided with by screw in the middle part of the lower port of the valve seat.
The three-level variable pressure relay valve external member, permutator can be by the two of three-level relay valve counter-pressure air chambers and pressure regulation gas
Road connects or disconnects, and so as to realize the control of the change working to three-level relay valve, simple structure is practical, and reliability is high.
Claims (10)
1. a kind of three-level variable pressure relay valve, including upper lid, valve body, relay piston, valve member, and the inflation for being arranged on lid
Joint and control joint, are arranged on the braking joint of body base；It is characterized in that：Upper lid is connected with valve seal；In valve body
In chamber, sealing shroud is equipped with relay piston, and normal pressure room is formed between the upper surface of relay piston and upper lid,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with and platform in valve body
The step surface third of terrace first matching, the step surface fourth matched with step surface second, are formed instead in step vizard and the third diameter of step surface
Pressure air chamber's first, forms counter-pressure air chamber second between step surface second and step surface fourth, is provided with and back-pressure strength in valve body side
The pressure regulation interface second that the pressure regulation interface first of room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, and valve box top sets
Valve port is put, relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter of valve port for right
Valve member opens and closes control.
2. three-level variable pressure relay valve according to claim 1, is characterized in that：Inflation tube chamber is provided with the upside of upper lid, is filled
Gas joint is located at one end of inflation tube chamber, and the other end sealing for inflating tube chamber is fixed with plug, and control joint is connected to gas tube
Chamber side wall；Piston body is housed in gas tube cavity inner sleeve, thrust spring is connected between piston body and plug；On the piston body
The left piston near gas-charging connection and the right piston near plug are provided with, when inflating from gas-charging connection, only have left piston and inflation
Lumen wall is in sealing contact and it is in sealing contact with inflation tube chamber to only have right piston when resetting, also, right piston is moved to right and made during inflation
When control joint is connected with upper cover cavity and resetted, right piston is moved to left and control joint is isolated with upper cover cavity.
3. three-level variable pressure relay valve according to claim 2, is characterized in that：The left end of the piston body arranges inner chamber, interior
The check valve with gas-charging connection fitted seal is set with chamber.
4. three-level variable pressure relay valve according to claim 3, is characterized in that：Set in the intracavity sidewall of the piston body left end
Gas outlet is equipped with, gas outlet is located at the left end of left piston；The aerating pipe connected with trailer gas bomb is provided with valve body side；
The gas outlet of piston body left end inner chamber is connected with aerating pipe.
5. three-level variable pressure relay valve according to claim 1, is characterized in that：The valve member includes that sealing shroud is fixed in valve
The valve seat of door room bottom, is set with hollow valve in valve seat, valve upper end is docked with valve port sealing, in valve seat and
Valve spring is connected between valve；Body cavity on the outside of valve port is connected with braking joint, the valve box on the inside of valve port
Connect with inlet suction port, valve cavity is connected as exhaust passage with the bottom conduit cavity.
6. three-level variable pressure relay valve according to claim 5, is characterized in that：Pass through in the middle part of the lower port of the valve seat
Screw is provided with dust-proof cushion.
7. a kind of three-level variable pressure relay valve external member, including three-level variable pressure relay valve and third gear permutator, is characterized in that：
Described three-level variable pressure relay valve includes lid, valve body, relay piston, valve member, and the inflation for being arranged on lid
Joint and control joint, are arranged on the braking joint of body base；
Upper lid is connected with valve seal；In body cavity, sealing shroud is equipped with relay piston, the upper surface of relay piston and upper lid
Between form normal pressure room,
The lower surface of relay piston is provided with two step vizards and the step surface second that diameter diminishes successively, is provided with and platform in valve body
The step surface third of terrace first matching, the step surface fourth matched with step surface second, are formed instead in step vizard and the third diameter of step surface
Pressure air chamber's first, forms counter-pressure air chamber second between step surface second and step surface fourth, is provided with and back-pressure strength in valve body side
The pressure regulation interface second that the pressure regulation interface first of room first connection is connected with counter-pressure air chamber second；
Valve inner below relay piston is provided with valve box, and valve member is located in valve room, and valve box top sets
Valve port is put, relay piston bottom arranges bottom conduit, and the lower edge diameter of the bottom conduit is less than the diameter of valve port for right
Valve member opens and closes control；
Described third gear permutator includes upper cover body, lower base, the conversion valve installed between upper cover body and lower base,
The bottom of described lower base is provided with an air inlet and two gas outlets, and two gas outlets pass through pipeline and described tune respectively
Crimping armatine, the connection of pressure regulation interface second, the top of lower base is prominent cylinder table, and the bottom of described upper cover body is and cylinder
Platform matching sleeve, rotary body is installed in sleeve, stretch out in the middle part of the lower surface of the rotary body Long Circle plug be inserted into turn
Inside the Long Circle pit of the matching for changing valve upper surface, upper cover body is stretched out on rotary body top,
Described conversion valve is located between the lower surface and the upper surface of cylinder table of rotary body, conversion valve lower surface and cylinder
It is palette between the upper surface of platform, the conversion valve is disc, and conversion valve diameter matched with sleeve diameter, switching valve
Thickness gate is matched with the distance between cylinder table upper surface, the lower surface of rotary body；
The upper surface of described cylinder table is provided with and connects and be distributed on same semi-circumference with air inlet and two gas outlets respectively
On three pores, be provided with steam vent at the upper surface center of cylinder table, the steam vent passes lower base and atmosphere,
The groove first of semicircular arc is provided with the lower surface of conversion valve；1/4 circular arc is additionally provided with the lower surface of conversion valve
Groove second, be additionally provided with flow guide recesses third in the lower surface of conversion valve, third one end of flow guide recesses communication groove second, the other end
Circle centre position positioned at conversion valve lower surface is corresponding with the steam vent of cylinder table upper surface, and groove first is positioned opposite with groove second,
Groove first and groove second form circular annular region in rotary course has overlap with three pores of cylinder table upper surface.
8. three-level variable pressure relay valve external member according to claim 7, is characterized in that：Rotation outside and sleeve medial surface
Between coordinate for piston area, the plug inside of rotary body bottom is spring cavity, inside spring cavity is provided with spring；Described rotation
The lower surface of swivel is provided with annular groove, is provided with to top and penetrates the upper pore of conversion valve, gas on this in described groove first
Hole is connected with inside annular groove；What rotary body top was downward is provided with several retaining spring chambers, and inside is provided with upper end band rolling
The retaining spring of pearl, is provided with the positioning hole of matching on the upper surface in the sleeve of upper cover body；Rotary body upper side with it is upper
Sealing structure is provided between lid internal face, cylinder table side is provided with sealing structure with the internal face of sleeve lower end；Upper cover body and
It is connected by screw between lower base；The gear instruction disk for protruding horizontally up is provided with the sidepiece of upper cover body, rotary body top is stretched out
The part of upper cover body is provided with the knob for indicating.
9. three-level variable pressure relay valve external member according to claim 7, is characterized in that：Gas tube is provided with the upside of upper lid
Chamber, gas-charging connection are located at one end of inflation tube chamber, and the other end sealing for inflating tube chamber is fixed with plug, and control joint is connected to fills
Trachea chamber side wall；Piston body is housed in gas tube cavity inner sleeve, thrust spring is connected between piston body and plug；The piston
Be provided with body near gas-charging connection left piston and near plug right piston, when inflate from gas-charging connection only have left piston and
Inflation lumen wall it is in sealing contact and reset when only have right piston with inflation tube chamber it is in sealing contact, also, inflate when right piston the right side
When shifting makes control joint connect with upper cover cavity and reset, right piston is moved to left and control joint is isolated with upper cover cavity；The piston
The left end of body arranges inner chamber, and the check valve with gas-charging connection fitted seal is set with inner chamber；In the piston body left end
Chamber side wall is provided with gas outlet, and gas outlet is located at the left end of left piston；Valve body side is provided with what is connected with trailer gas bomb
Aerating pipe；The gas outlet of piston body left end inner chamber is connected with aerating pipe.
10. three-level variable pressure relay valve external member according to claim 7, is characterized in that：The valve member includes sealing shroud
The valve seat of valve box bottom is fixed in, hollow valve in valve seat, is set with, valve upper end is docked with valve port sealing, in valve
Valve spring is connected between gate seat and valve；Body cavity on the outside of valve port is connected with braking joint, on the inside of valve port
Valve box is connected with inlet suction port, and valve cavity is connected as exhaust passage with the bottom conduit cavity；In the valve seat
Lower port in the middle part of dust-proof cushion is provided with by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700873.3A CN104627156B (en) | 2014-11-28 | 2014-11-28 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700873.3A CN104627156B (en) | 2014-11-28 | 2014-11-28 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104627156A CN104627156A (en) | 2015-05-20 |
| CN104627156B true CN104627156B (en) | 2017-04-12 |
Family
ID=53206537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410700873.3A Expired - Fee Related CN104627156B (en) | 2014-11-28 | 2014-11-28 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104627156B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015016658A1 (en) * | 2015-12-19 | 2017-06-22 | Wabco Gmbh | Device for increasing the ventilation speed of a pneumatic control valve |
| CN111674375B (en) * | 2020-05-26 | 2021-08-24 | 中国十七冶集团有限公司 | Automatic control device of pneumatic brake |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818262Y (en) * | 2005-09-01 | 2006-09-20 | 万安集团诸暨汽车制动系统有限公司 | Emergent relay valve assembly of automotive |
| CN201269328Y (en) * | 2008-09-05 | 2009-07-08 | 吴建华 | Four-position four-way manual air valve |
| CN201462083U (en) * | 2009-07-31 | 2010-05-12 | 胡剑敏 | Ultrahigh pressure manual three position four way directional valve |
| CN101716927A (en) * | 2009-12-23 | 2010-06-02 | 张小伟 | Full-automatic servo-brake relay valve |
| CN201834006U (en) * | 2010-08-24 | 2011-05-18 | 屠程鑫 | Adjustable three-axle synchronous relay valve |
| CN202209323U (en) * | 2011-08-18 | 2012-05-02 | 潘贵 | Hand-operated rotary double thin plate type two-position five-way reversing valve |
| CN104141802A (en) * | 2014-07-23 | 2014-11-12 | 江苏万工科技集团有限公司 | Pneumatic control rotating valve for pneumatic box combining mechanism |
| CN204323325U (en) * | 2014-11-28 | 2015-05-13 | 昌通科技有限公司 | Three grades of variable pressure relay valves and three grades of variable pressure relay valve external members thereof |
-
2014
- 2014-11-28 CN CN201410700873.3A patent/CN104627156B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818262Y (en) * | 2005-09-01 | 2006-09-20 | 万安集团诸暨汽车制动系统有限公司 | Emergent relay valve assembly of automotive |
| CN201269328Y (en) * | 2008-09-05 | 2009-07-08 | 吴建华 | Four-position four-way manual air valve |
| CN201462083U (en) * | 2009-07-31 | 2010-05-12 | 胡剑敏 | Ultrahigh pressure manual three position four way directional valve |
| CN101716927A (en) * | 2009-12-23 | 2010-06-02 | 张小伟 | Full-automatic servo-brake relay valve |
| CN201834006U (en) * | 2010-08-24 | 2011-05-18 | 屠程鑫 | Adjustable three-axle synchronous relay valve |
| CN202209323U (en) * | 2011-08-18 | 2012-05-02 | 潘贵 | Hand-operated rotary double thin plate type two-position five-way reversing valve |
| CN104141802A (en) * | 2014-07-23 | 2014-11-12 | 江苏万工科技集团有限公司 | Pneumatic control rotating valve for pneumatic box combining mechanism |
| CN204323325U (en) * | 2014-11-28 | 2015-05-13 | 昌通科技有限公司 | Three grades of variable pressure relay valves and three grades of variable pressure relay valve external members thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104627156A (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104627156B (en) | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof | |
| CN207005302U (en) | Self-locking seal formula valve and the gas cylinder using the valve | |
| CN201152334Y (en) | Gas spring with damping effect | |
| CA2349664A1 (en) | Dispensing tool assembly for evacuating and charging a fluid system | |
| CN204323325U (en) | Three grades of variable pressure relay valves and three grades of variable pressure relay valve external members thereof | |
| CN104627157B (en) | Three-gear change-over switch for relay valve | |
| CN205149846U (en) | Relay valve with anti -lock function and braking are steady | |
| CN201388758Y (en) | Atmospheric pressure rod | |
| CN201547249U (en) | High-pressure pneumatic stop valve | |
| CN204213361U (en) | Heavy caliber gas-flow closure butterfly valve | |
| CN101761674A (en) | Wheel valve | |
| CN105840881B (en) | Take turns edge system assembly | |
| CN205824208U (en) | A kind of hermetically sealed butterfly valve of novel big orifice | |
| CN104964046A (en) | Large-diameter inflated sealing butterfly valve | |
| CN104019261A (en) | Vehicle tire pressure control valve | |
| CN206520606U (en) | A kind of harbour machinery brakes trailer control valve | |
| CN109854787B (en) | Three-position three-way electromagnetic control valve assembly | |
| CN207554931U (en) | A kind of pneumatic single disc sealing valve | |
| CN207093816U (en) | A kind of manual break-make air valve of convenient type | |
| CN106627542A (en) | Multi-way rubber column sealed distribution valve | |
| CN107701771A (en) | A kind of positive pinch roller side valve | |
| CN204250034U (en) | Relay valve three speed switch | |
| CN215148052U (en) | Pinch roller cylinder and super-finishing machine with same | |
| CN213088899U (en) | Controller for inflation and deflation | |
| CN201177083Y (en) | Tyre air valve for automatic pressure relief |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180508 Granted publication date: 20170412 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220508 Granted publication date: 20170412 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xia Junbo Document name: Notice of termination of suspension proceedings |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20201128 |