CN204821540U - Three bridge relay valves of second grade vary voltage - Google Patents
Three bridge relay valves of second grade vary voltage Download PDFInfo
- Publication number
- CN204821540U CN204821540U CN201520601019.1U CN201520601019U CN204821540U CN 204821540 U CN204821540 U CN 204821540U CN 201520601019 U CN201520601019 U CN 201520601019U CN 204821540 U CN204821540 U CN 204821540U
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- chamber
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Abstract
The utility model discloses a three bridge relay valves of second grade vary voltage, include last valve body and lower valve body, go up the valve body and be equipped with one -level braking chamber, two stage braking chamber, one -level intake pipe and second grade intake pipe that the chamber intercommunication is all brakied with the one -level to one -level intake pipe and second grade intake pipe, the both ends in one -level braking chamber all with two stage braking chamber intercommunication, one -level braking chamber both ends all are equipped with one -level vary voltage piston, wherein the one -level vary voltage piston of one end lies in below the second grade intake pipe locates with the intercommunication in one -level braking chamber, two stage braking chamber one end is equipped with second grade vary voltage piston, lies in same one side with the second grade intake pipe, one -level braking chamber both ends are equipped with the variable -voltage control bolt, and the variable -voltage control bolt supports on one -level vary voltage piston. The utility model discloses can adjust return spring's decrement through rotary transformer adjusting bolt to change control of gases and open the required pressure size of one -level vary voltage piston, guarantee the braking effect of different tonnage cars, reduced safety accident's emergence.
Description
Technical field
The utility model belongs to automobile brake technical field, particularly a kind of secondary transformation three-axle relay valve.
Background technology
Relay valve belongs to a part for automobile air brake brake system, and in the brake system of autotruck, relay valve plays Reaction time shorten and pressure setting time.Relay valve is used for the end of long pipe runs, makes the pressurized air of air receiver be full of compressed air brake cylinder fast.Current three-axle relay valve is widely used in brake system of car, especially uses more general in trailer or semitrailer brake system.
Be in the utility model patent of 2012202741141 in the patent No., disclose a kind of secondary transformation three bridge synchronous relay valve, comprise the upper valve body and lower valve body that are fixed together, upper valve body is provided with control mouth, lower valve body is provided with braking air extractor duct, braking admission port, exhausr port and valve, upper valve body is provided with one-level brake chamber and two stage braking chamber, control mouth and be arranged on one-level brake chamber one end, the other end of one-level brake chamber is communicated with the one end in two stage braking chamber, the other end is held to be provided with piston positioning seat successively from being communicated with of one-level brake chamber in two stage braking chamber, secondary transformation piston, secondary voltage control valve, secondary transformation piston is communicated with one-level brake chamber near the end face of piston positioning seat, first stage piston and second piston is provided with in upper valve body, first stage piston is socketed in second piston, one-level brake chamber inwall is provided with the one-level intercommunicating pore being communicated with first stage piston upper surface, two stage braking cavity wall is provided with the secondary intercommunicating pore being communicated with second piston upper surface, two stage braking chamber is also provided with the secondary inlet mouth be communicated with secondary voltage control valve.This patent, by the double action of one-level, second piston, brake hypodynamic problem, but the braking force of relay valve is factory's original setting when solving heavy duty, and driver in use cannot autonomous regulating brake force.
Summary of the invention
The purpose of this utility model is that structure is simple, braking force strong, not easily locking in order to provide, the braking force large and secondary transformation three-axle relay valve that can regulate braking force during heavy duty.
For this reason, the technical solution of the utility model is: a kind of secondary transformation three-axle relay valve, comprise the upper valve body and lower valve body that are fixed together, lower valve body is provided with braking air extractor duct, braking admission port and valve, upper valve body is provided with one-level brake chamber and two stage braking chamber; Be provided with first stage piston and second piston in upper valve body, first stage piston is socketed in second piston, and one-level brake chamber inwall is provided with the one-level intercommunicating pore being communicated with first stage piston upper surface, and two stage braking cavity wall is provided with the secondary intercommunicating pore being communicated with second piston upper surface; It is characterized in that: described upper valve body is also provided with one-level air inlet pipe and secondary inlet pipe, one-level air inlet pipe is communicated with secondary inlet Guan Junyu one-level brake chamber; The two ends of described one-level brake chamber are equipped with the vent be communicated with two stage braking chamber, one-level brake chamber two ends are equipped with one-level transformation piston, be positioned at above vent, wherein the one-level transformation piston of one end is positioned at below the connectivity part of secondary inlet pipe and one-level brake chamber; One end, two stage braking chamber is provided with secondary transformation piston, is positioned at below the vent that is communicated with one-level brake chamber, is positioned at the same side with secondary inlet pipe; Described one-level brake chamber two ends are provided with transformation adjusting bolt, and transformation adjusting bolt is against on one-level transformation piston.
Further, described one-level transformation piston is cylindrical shape, and cylinder outer wall has through hole; Be provided with first stage piston positioning seat, one-level pull back spring and first stage piston block successively from the end of one-level brake chamber to center in cylinder, described one-level pull back spring one end is enclosed within first stage piston positioning seat, and the other end is against on the end face of first stage piston block.
Further, inside, described one-level brake chamber two ends is provided with transformation adjusting bolt seat, and transformation adjusting bolt and transformation adjusting bolt seat screw thread fit, transformation adjusting bolt is against on the first stage piston positioning seat in one-level transformation piston.
Further, described secondary transformation piston comprises T-shaped second piston block, secondary pull back spring and second piston seat, and described second piston seat is hollow structure, and inside has annular table terrace, and second piston block end is filled in second piston seat; Described secondary pull back spring is enclosed within second piston block, and one end is against on the end face of second piston block, and the other end is against on the annular table terrace in second piston seat.
Time unloaded, one-level air inlet pipe input control gas of the present utility model, when controlling the pressure of gas within 3MPa, control gas and be transported to first stage piston upper surface by the one-level intercommunicating pore on one-level brake chamber inwall, and promote first stage piston to move downward, first stage piston promotes valve, and braking admission port and braking air extractor duct are communicated with, and brake gas to be transported in lower valve body and from braking air extractor duct output from braking admission port.
During heavy duty, the control gaseous tension of one-level air inlet pipe input of the present utility model, at more than 3MPa, controls gas and is transferred to the upper end of first stage piston and promotes first stage piston on the one hand, on the other hand, control the one-level transformation piston place of gas transport to two ends, one-level brake chamber left and right, promote first stage piston block, the one-level transformation piston of left end is opened and is made control gas be transported to two stage braking chamber from the connectivity part in one-level brake chamber and two stage braking chamber, meanwhile, after the one-level transformation piston below the connectivity part being placed in secondary inlet pipe and one-level brake chamber of right-hand member is opened, secondary inlet pipe input control gas is to one-level brake chamber, the brake gas part being transported to two stage braking chamber from left end one-level transformation piston is transported to second piston upper surface from the secondary intercommunicating pore in two stage braking chamber, another part promotes the second piston block in secondary transformation piston, the vent of one-level brake chamber and two stage braking chamber right-hand member is opened, in the gas input two stage braking chamber of secondary inlet mouth, converge with the control gas of two stage braking chamber left end, second piston upper surface is transported to from secondary intercommunicating pore, rapid promotion second piston, second piston promotes first stage piston further to be made it to continue descendingly to push valve open.
The transformation adjusting bolt that the utility model is positioned at one-level brake chamber two ends can carry out regulating brake force by rotation, rotate transformation adjusting bolt and regulate the amount of compression of one-level pull back spring and the position of first stage piston block in one-level transformation piston, thus change control gas opens the pressure size needed for one-level transformation piston, make driver transformation adjusting bolt can be regulated to the position be applicable to according to automobile tonnage, ensure the braking effect of different tonnage automobile, reduce the generation of safety misadventure.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is birds-eye view of the present utility model.
Fig. 3 is the cutaway view of the utility model one-level brake chamber position.
Fig. 4 is the cutaway view of position, the utility model two stage braking chamber.
Fig. 5 is the transverse sectional view of the utility model upper valve body.
Be labeled as in figure: upper valve body 1, lower valve body 2, one-level brake chamber 3, one-level intercommunicating pore 31, vent 32, one-level transformation piston 33, transformation adjusting bolt 34, through hole 35, first stage piston positioning seat 36, one-level pull back spring 37, first stage piston block 38, transformation adjusting bolt seat 39, two stage braking chamber 4, secondary intercommunicating pore 41, secondary transformation piston 42, second piston block 43, secondary pull back spring 44, second piston seat 45, first stage piston 5, second piston 6, braking air extractor duct 7, braking admission port 8, valve 9, one-level air inlet pipe 10, secondary inlet pipe 11.
Detailed description of the invention
See accompanying drawing.The present embodiment comprises the upper valve body 1 and lower valve body 2 that are fixed together, and lower valve body 1 is provided with braking air extractor duct 7, braking admission port 8 and valve 9, upper valve body is provided with one-level brake chamber 3 and two stage braking chamber 4; First stage piston 5 and second piston 6 is provided with in upper valve body 1, first stage piston is socketed in second piston, one-level brake chamber 3 inwall is provided with the one-level intercommunicating pore 31 being communicated with first stage piston 5 upper surface, and two stage braking chamber 4 inwall is provided with the secondary intercommunicating pore 41 being communicated with second piston 6 upper surface; Described upper valve body 1 is also provided with one-level air inlet pipe 10 and secondary inlet pipe 11, and one-level air inlet pipe is communicated with secondary inlet Guan Junyu one-level brake chamber; The two ends of described one-level brake chamber are equipped with the vent 32 be communicated with two stage braking chamber, one-level brake chamber two ends are equipped with one-level transformation piston 33, be positioned at above vent, wherein the one-level transformation piston 33 of one end is positioned at below the connectivity part of secondary inlet pipe 11 and one-level brake chamber 3; One end, two stage braking chamber 4 is provided with secondary transformation piston 42, is positioned at below the vent 32 that is communicated with one-level brake chamber, is positioned at the same side with secondary inlet pipe 11; Described one-level brake chamber 3 two ends are provided with transformation adjusting bolt 34, and transformation adjusting bolt is against on one-level transformation piston.
The one-level transformation piston 33 of the present embodiment is cylindrical shape, cylinder outer wall has through hole 35; First stage piston positioning seat 36, one-level pull back spring 37 and first stage piston block 38 is provided with successively from the end of one-level brake chamber 3 to center in cylinder, described one-level pull back spring 37 one end is enclosed within first stage piston positioning seat 36, and the other end is against on the end face of first stage piston block 38.
The inside, one-level brake chamber 3 two ends of the present embodiment is provided with transformation adjusting bolt seat 39, and transformation adjusting bolt 34 and transformation adjusting bolt seat screw thread fit, transformation adjusting bolt 34 is against on the first stage piston positioning seat 36 in one-level transformation piston.Rotate transformation adjusting bolt 34 and regulate the amount of compression of one-level pull back spring 37 and the position of first stage piston block 38 in one-level transformation piston 33, thus change control gas opens the pressure size needed for one-level transformation piston 33, make driver transformation adjusting bolt 34 can be regulated to the position be applicable to according to automobile tonnage, ensure the braking effect of different tonnage automobile, reduce the generation of safety misadventure.
The secondary transformation piston 42 of the present embodiment comprises T-shaped second piston block 43, secondary pull back spring 44 and second piston seat 45, and described second piston seat 45 is hollow structure, and inside has annular table terrace, and second piston block 43 end is filled in second piston seat; Described secondary pull back spring 44 is enclosed within second piston block, and one end is against on the end face of second piston block, and the other end is against on the annular table terrace in second piston seat.
Time unloaded, the one-level air inlet pipe 10 input control gas of the present embodiment, when controlling the pressure of gas within 3MPa, control gas and be transported to first stage piston 5 upper surface by the one-level intercommunicating pore 31 on one-level brake chamber 3 inwall, and promote first stage piston 5 to move downward, first stage piston promotes valve 9, and braking admission port 8 and braking air extractor duct 7 are communicated with, and brake gas to be transported in lower valve body 2 and from the output of braking air extractor duct from braking admission port.
During heavy duty, the control gaseous tension of one-level air inlet pipe 10 input of the present embodiment, at more than 3MPa, controls gas and is transferred to the upper end of first stage piston 5 and promotes first stage piston on the one hand, on the other hand, control one-level transformation piston 33 place of gas transport to one-level brake chamber about 3 two ends, promote first stage piston block 38, the one-level transformation piston of left end is opened and is made control gas be transported to two stage braking chamber 4 from the vent 32 in one-level brake chamber and two stage braking chamber, meanwhile, after the one-level transformation piston below the connectivity part being placed in secondary inlet pipe 11 and one-level brake chamber 3 of right-hand member is opened, secondary inlet pipe 11 input control gas is to one-level brake chamber 3, the brake gas part being transported to two stage braking chamber 4 from left end one-level transformation piston 33 is transported to second piston 6 upper surface from the secondary intercommunicating pore 41 in two stage braking chamber 4, another part promotes the second piston block 43 in secondary transformation piston 42, the vent of one-level brake chamber 3 and two stage braking chamber 4 right-hand member is opened, in the gas input two stage braking chamber 4 of secondary inlet mouth 11, converge with the control gas of two stage braking chamber 4 left end, second piston 6 upper surface is transported to from secondary intercommunicating pore 41, rapid promotion second piston 6, second piston 6 promotes further first stage piston 5 to be made it to continue descendingly to push valve 9 open.
Claims (4)
1. a secondary transformation three-axle relay valve, comprises the upper valve body and lower valve body that are fixed together, and lower valve body is provided with braking air extractor duct, braking admission port and valve, upper valve body is provided with one-level brake chamber and two stage braking chamber; Be provided with first stage piston and second piston in upper valve body, first stage piston is socketed in second piston, and one-level brake chamber inwall is provided with the one-level intercommunicating pore being communicated with first stage piston upper surface, and two stage braking cavity wall is provided with the secondary intercommunicating pore being communicated with second piston upper surface; It is characterized in that: described upper valve body is also provided with one-level air inlet pipe and secondary inlet pipe, one-level air inlet pipe is communicated with secondary inlet Guan Junyu one-level brake chamber; The two ends of described one-level brake chamber are equipped with the vent be communicated with two stage braking chamber, one-level brake chamber two ends are equipped with one-level transformation piston, be positioned at above vent, wherein the one-level transformation piston of one end is positioned at below the connectivity part of secondary inlet pipe and one-level brake chamber; One end, two stage braking chamber is provided with secondary transformation piston, is positioned at below the vent that is communicated with one-level brake chamber, is positioned at the same side with secondary inlet pipe; Described one-level brake chamber two ends are provided with transformation adjusting bolt, and transformation adjusting bolt is against on one-level transformation piston.
2. a kind of secondary transformation three-axle relay valve as claimed in claim 1, is characterized in that: described one-level transformation piston is cylindrical shape, and cylinder outer wall has through hole; Be provided with first stage piston positioning seat, one-level pull back spring and first stage piston block successively from the end of one-level brake chamber to center in cylinder, described one-level pull back spring one end is enclosed within first stage piston positioning seat, and the other end is against on the end face of first stage piston block.
3. a kind of secondary transformation three-axle relay valve as claimed in claim 2, it is characterized in that: inside, described one-level brake chamber two ends is provided with transformation adjusting bolt seat, transformation adjusting bolt and transformation adjusting bolt seat screw thread fit, transformation adjusting bolt is against on the first stage piston positioning seat in one-level transformation piston.
4. a kind of secondary transformation three-axle relay valve as claimed in claim 1, it is characterized in that: described secondary transformation piston comprises T-shaped second piston block, secondary pull back spring and second piston seat, described second piston seat is hollow structure, inside has annular table terrace, and second piston block end is filled in second piston seat; Described secondary pull back spring is enclosed within second piston block, and one end is against on the end face of second piston block, and the other end is against on the annular table terrace in second piston seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601019.1U CN204821540U (en) | 2015-08-12 | 2015-08-12 | Three bridge relay valves of second grade vary voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601019.1U CN204821540U (en) | 2015-08-12 | 2015-08-12 | Three bridge relay valves of second grade vary voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204821540U true CN204821540U (en) | 2015-12-02 |
Family
ID=54679170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601019.1U Withdrawn - After Issue CN204821540U (en) | 2015-08-12 | 2015-08-12 | Three bridge relay valves of second grade vary voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204821540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015533A (en) * | 2015-08-12 | 2015-11-04 | 马丽杭 | Two-step voltage transformation type three-bridge relay valve |
-
2015
- 2015-08-12 CN CN201520601019.1U patent/CN204821540U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015533A (en) * | 2015-08-12 | 2015-11-04 | 马丽杭 | Two-step voltage transformation type three-bridge relay valve |
| CN105015533B (en) * | 2015-08-12 | 2017-09-26 | 马丽杭 | A kind of two grades of transformation three-axle relay valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170926 |