CN202054013U - Voltage-regulating and power-assisting relay valve - Google Patents
Voltage-regulating and power-assisting relay valve Download PDFInfo
- Publication number
- CN202054013U CN202054013U CN201120103839XU CN201120103839U CN202054013U CN 202054013 U CN202054013 U CN 202054013U CN 201120103839X U CN201120103839X U CN 201120103839XU CN 201120103839 U CN201120103839 U CN 201120103839U CN 202054013 U CN202054013 U CN 202054013U
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- valve
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- brake
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model belongs to the technical field of air brake valves and particularly discloses a voltage-regulating and power-assisting relay valve which structurally comprises a relay valve casing, wherein the relay valve casing is formed by an upper cover body and a lower valve body which are buckled and integrally connected with each other; a compressed gas inlet, a compressed gas outlet and a brake valve are arranged in the lower valve body; a gas flow control inlet is formed at the top of the upper cover body; the upper cover body and the lower valve body are respectively provided with circular truncated cones and form a cavity; a control cavity, a brake power assisting cavity and a brake cavity are respectively formed on two sides of a relay piston arranged in the cavity; a valve rod fixed in a lower cylinder body is inserted into a central hole at the bottom of a cylinder tube of the lower valve body and used for controlling a brake valve; a power assisting gas flow dividing passage communicated with the brake power assisting cavity is formed on the upper cover body forming the control cavity; and a pressure regulating valve formed by an adjusting screw rod, an elastic component and a valve piece is arranged in the passage. The voltage-regulating and power-assisting relay valve can be used and exchanged on vehicles or articulated vehicles of different tonnages; what's more, the pressure regulating valve has the characteristics of simple structure and convenience in maintenance.
Description
Technical field
The utility model belongs to the compressed air brake valve technology field, relates to a kind of pressure regulation power-assisted relay valve that can braking brake uses on the automobile of different tonnages or towed vehicle.
Background technology
China Patent No. is that the utility model patent of 201010193561.X discloses a kind of flexible brake power-assisted relay valve, is provided with the pressure regulating valve that is made of elastic parts and valve block in constituting this power-assisted relay valve power-assisted air splitter passage.But because the structure more complicated of this pressure regulating valve, make and use in have the problems that the work manufacture component is many and maintenance bothers.
The utility model content
The purpose of this utility model just provides a kind of pressure regulating valve simple structure, pressure regulation power-assisted relay valve easy to maintenance.
Realize that the technical scheme that above-mentioned utility model purpose is adopted is:
A kind of pressure regulation power-assisted relay valve, structure includes, the relay valve housing that upper cover body (1) that is connected as a single entity by snapping and following valve body (2) constitute, wherein descend to be provided with in the valve body compressed air inlet port (3) that is communicated with air tank, the pressure gas that is communicated with car brake outlet (4) and be arranged at brake valve (6) in the cylinder barrel (5), the upper cover body top is provided with the control airflow inlet (23) with brake activation valve UNICOM; That described upper cover body (1) and following valve body are respectively arranged with round platform (7) and (8) and constitute cavity, the downside that is arranged at the relay piston (9) in this cavity is provided with lower shell (11) and described cavity is divided into control chamber (12), brake power-assisted chamber (13) and the chamber (14) of braking; Upside at described relay piston (9) is provided with the upper shell (10) that seals in the insertion control chamber (12), and this upper shell is independently cut apart described control chamber (12) and brake power-assisted chamber (13); The upper cover body that constitutes described control chamber (12) is provided with the power-assisted air splitter passage (20) that is communicated with described brake power-assisted chamber (13), and is provided with the pressure regulating valve that is made of elastic parts (21) and valve block (22) in this passage; Be respectively arranged with the baffle ring that is provided with lockout mechanism and center drilling in described power-assisted air splitter passage (20) end and entrance, described lockout mechanism is provided with adjusting screw(rod), and this adjusting screw(rod) is connected with described elastic parts (21) and is used to adjust its elastic parameter.
Its additional technical feature comprises:
Described valve block (22) is a baffle structure;
Described lockout mechanism is made of female seat and locknut;
Described valve block is a tube structure, the nozzle of this cylindrical shell and described baffle ring coupling;
The barrel of described cylindrical shell is provided with the airflow diversion hole, and the outer wall of cylindrical shell is provided with bulge loop and seal ring.
Pressure regulation power-assisted relay valve provided by the utility model compared with prior art, since the structure that constitutes pressure regulation power-assisted relay valve pressure regulating valve by be arranged at cylindrical shell in the power-assisted air splitter passage,, female seat and the spring assembly that is arranged at the two constitute, and the wall of the barrel of cylindrical shell and split channel is provided with intercommunicating pore; Therefore have the few characteristics of component parts, in use have the simplified overhauling of use characteristics easily simultaneously.
Description of drawings
Fig. 1: be the structural representation of pressure regulation power-assisted relay valve provided by the utility model;
Fig. 2: the structural representation that is second kind of pressure regulation power-assisted relay valve.
The specific embodiment
Be described in further detail below in conjunction with the structure of accompanying drawing pressure regulation power-assisted relay valve provided by the utility model.
Be illustrated in figure 1 as the structural representation of the pressure regulation power-assisted relay valve that the utility model provides.Its structure includes the relay valve housing that the upper cover body that is connected as a single entity by snapping 1 and following valve body 2 constitute, wherein descend to be provided with in the valve body compressed air inlet port 3 that is communicated with air tank, the compressed air outlet port 4 that is communicated with car brake and be arranged at brake valve 6 in the cylinder barrel 5, the upper cover body top is provided with the control airflow inlet 23 with brake activation valve UNICOM; Above-mentioned upper cover body 1 and following valve body are respectively the cavity that is provided with round platform 7 and 8, the both sides that are arranged at the relay piston 9 in this cavity are respectively arranged with upper shell 10 and lower shell 11 has been divided into control chamber 12 with cavity, brake power-assisted chamber 13 and brake chamber 14, the upper shell 10 of relay piston 9 wherein, the upper shell seal ring 15 that is provided with respectively on the outside wall surface on lower shell 11 and the piston body, obturator piston ring 16 and lower shell seal ring 17 respectively with control chamber 12, brake power-assisted chamber 13 and brake chamber 14 are tightly connected, being fixed in valve rod 18 in the lower shell 11 inserts in down at the bottom of 5 of the valve body cylinder barrels in 19 the centre hole 24 and is used for control brake valve 6, the upper cover body that constitutes control chamber 12 is provided with the power-assisted air splitter passage 20 that is communicated with the power-assisted chamber 13 of braking, be provided with the baffle ring 25 of the center drilling that is provided with by fixing lockout mechanism that constitutes by locknut 29 and female seat 24 of mode such as spiral shell button or buckle and its and entrance in the end of this air splitter passage, between the lockout mechanism of this passage and baffle ring, be provided with the pressure regulating valve that constitutes by elastic parts 21 and valve block 22; Female seat is provided with adjusting screw(rod) 26, this adjusting screw(rod) with elastic parts be connected combination.
In above-mentioned pressure regulation power-assisted relay valve structure, the valve block that constitutes pressure regulating valve also can be a tube structure as shown in Figure 2, the nozzle of this cylindrical shell is complementary with the center drilling that is arranged at the baffle ring 25 of air splitter passage, its barrel is provided with airflow diversion hole 27, and its outer wall is provided with the bulge loop 28 that is fixed with seal ring, and its two ends that constitute the stage clip 29 of elastic parts are connected with the scrobicular ring that is arranged at the cylindrical shell bottom with adjusting screw(rod) 26 respectively.
Its principle of work is, during brake, pin is stepped on brake activation valve control air-flow from control airflow inlet 23 control of access chambeies 12, the pressure of the control air-flow in (also being that pin is stepped on brake activation valve gently) control of access chamber 12 gently in a flash is less, this control air-flow directly promotes relay piston 9 gently and servo valve rod 18 is opened column casing piston valve 6 gently, thereby the compressed gas air-flow in the air tank via brake chamber 14 and by output Control of Automobile drg in the air air extractor duct 4 that contracts, can be realized the purpose that automobile is gently stopped by compressed air inlet port 3 thus; The pressure of the control air-flow when needing heavy brake in (also pin is firmly stepped on brake activation valve) control of access chamber 12 is bigger, this control air-flow divides two parts to be used to promote relay piston 9---and a part directly promotes relay piston 9, this gas of another part presses the pressure regulating valve that is made of elastic parts 21 and valve block 22, enter promotion relay piston 9 in the power-assisted chamber 13 by power-assisted gas channel 20---and servo valve rod 18 is opened column casing piston valve 6, thereby the compressed gas air-flow in the air tank by compressed air inlet port 3 via brake chamber 14 and by output Control of Automobile drg in the air air extractor duct 4 that contracts, owing to the use in power-assisted chamber, therefore can realize the purpose of automobile heavy brake.
Control cock in the above-mentioned power-assisted relay valve is owing to be made of elastic parts 21, adjusting screw(rod) 26 and valve block 22, by the adjusting screw(rod) on precession or the back-out lockout mechanism, be used to adjust the elastic parameter of elastic parts, make pressure regulating valve smart to cut and adjust the pressure (pressure) that enters into power-assisted chamber control air-flow, thereby realize that the power-assisted chamber makes the brake chamber export different pressure under the pressure of different control gaseous, thereby reach in use, this power-assisted relay valve is stepped on brake activation valve at pin, can realize assist function in various degree.
Claims (5)
1. pressure regulation power-assisted relay valve, structure includes, the relay valve housing that upper cover body (1) that is connected as a single entity by snapping and following valve body (2) constitute, wherein descend to be provided with in the valve body compressed air inlet port (3) that is communicated with air tank, the pressure gas that is communicated with car brake outlet (4) and be arranged at brake valve (6) in the cylinder barrel (5), the upper cover body top is provided with the control airflow inlet (23) with brake activation valve UNICOM; That described upper cover body (1) and following valve body are respectively arranged with round platform (7) and (8) and constitute cavity, the downside that is arranged at the relay piston (9) in this cavity is provided with lower shell (11) and described cavity is divided into control chamber (12), brake power-assisted chamber (13) and the chamber (14) of braking; Upside at described relay piston (9) is provided with the upper shell (10) that seals in the insertion control chamber (12), and this upper shell is independently cut apart described control chamber (12) and brake power-assisted chamber (13); The upper cover body that constitutes described control chamber (12) is provided with the power-assisted air splitter passage (20) that is communicated with described brake power-assisted chamber (13), and is provided with the pressure regulating valve that is made of elastic parts (21) and valve block (22) in this passage;
It is characterized in that: be respectively arranged with the baffle ring that is provided with lockout mechanism and center drilling in described power-assisted air splitter passage (20) end and entrance, described lockout mechanism is provided with adjusting screw(rod), and this adjusting screw(rod) is connected with described elastic parts (21) and is used to adjust its elastic parameter.
2. a kind of pressure regulation power-assisted relay valve as claimed in claim 1 is characterized in that: described valve block (22) is a baffle structure.
3. a kind of pressure regulation power-assisted relay valve as claimed in claim 1, it is characterized in that: described lockout mechanism is made of female seat and locknut.
4. a kind of pressure regulation power-assisted relay valve as claimed in claim 1 is characterized in that: described valve block is a tube structure, the nozzle of this cylindrical shell and described baffle ring coupling.
5. a kind of pressure regulation power-assisted relay valve as claimed in claim 3, it is characterized in that: the barrel of described cylindrical shell is provided with the airflow diversion hole, and the outer wall of cylindrical shell is provided with bulge loop and seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120103839XU CN202054013U (en) | 2011-04-11 | 2011-04-11 | Voltage-regulating and power-assisting relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120103839XU CN202054013U (en) | 2011-04-11 | 2011-04-11 | Voltage-regulating and power-assisting relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202054013U true CN202054013U (en) | 2011-11-30 |
Family
ID=45013996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120103839XU Expired - Fee Related CN202054013U (en) | 2011-04-11 | 2011-04-11 | Voltage-regulating and power-assisting relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202054013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342123A (en) * | 2013-07-08 | 2013-10-09 | 李旭 | Water-drainage synchronous relay valve |
-
2011
- 2011-04-11 CN CN201120103839XU patent/CN202054013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342123A (en) * | 2013-07-08 | 2013-10-09 | 李旭 | Water-drainage synchronous relay valve |
| CN103342123B (en) * | 2013-07-08 | 2016-02-03 | 李旭 | Draining synchronous relay valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20130411 |