CN2846244Y

CN2846244Y - Three ratio relay valve

Info

Publication number: CN2846244Y
Application number: CN 200520116206
Authority: CN
Inventors: 陈仲明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-07
Filing date: 2005-11-07
Publication date: 2006-12-13
Anticipated expiration: 2015-11-07

Abstract

The utility model relates to a three ratio relay valve which is composed of an upper body of the relay valve and a lower body of the relay valve, wherein an operating cavity is arranged between the upper body and the lower body of the relay valve, and a piston of the relay valve is also arranged between the upper body and the lower body; the lower part of the piston is provided with a valve and a piston restoring spring; the valve is arranged on a valve seat, and an air exhaust opening and an air exhaust opening dust preventing film are arranged below the valve seat; a valve restoring spring is also arranged on the valve seat. An air inlet interface, an air outlet interface, an operating interface, a main regulating rod and an auxiliary regulating rod are also arranged on the lower body. An air inlet cavity, an air outlet cavity, a main control cavity and an auxiliary control cavity are arranged below the piston in the lower body. The air inlet interface is communicated with the air inlet cavity, and the air outlet interface is communicated with the air outlet cavity. The main control cavity is communicated with the main regulating rod which is arranged in the lower body, and the auxiliary control cavity is communicated with the auxiliary regulating rod which is arranged in the lower body. The main regulating rod and the auxiliary regulating rod are respectively arranged on respective regulating rod seat. A main control cavity interface and an auxiliary control cavity interface are also arranged on the lower body, and steel ball plugs are respectively arranged on the main control cavity interface and the auxiliary control cavity interface. The utility model is suitable for buses, trucks and trailers.

Description

Three ratio relay valves

Technical field

The utility model relates to a kind of relay valve, especially relates to a kind of three ratio relay valves.

Background technology

The kind of automobile is a lot, the automobile spacing that has is longer, its brake piping is also corresponding longer, air pressure in the braking procedure lags behind, seriously influenced the safety of driving, national Specification, motorcoach, goods carrying vehicle and trailer must be installed anti-skid brake system up to specification and automatic clearance adjuster.But facts have proved, for the air brakes vehicles of long wheelbase,, still can not guarantee traffic safety preferably even ABS anti-skid brake system and automatic clearance adjuster have been installed, to the long wheelbase vehicle of running at high speed, the problem that the reaction time of air brake valve lags behind remains subject matter.

Summary of the invention

The purpose of this utility model is the problem at above-mentioned Car Relay Valve, provides a kind of braking effect better three ratio relay valves.

In order to achieve the above object, the utility model has mainly adopted following technical scheme to realize.The utility model is made up of relay valve upper body and relay valve lower body, relay valve body is placed on the support, between relay valve upper body and lower body, be provided with and handle the chamber, also be provided with the relay valve piston, piston and lower body junction surface are provided with some O type rubber seal, lower part of piston is provided with valve and piston reset spring, valve is located on the valve seat, the below of valve seat is provided with exhausr port and the dustproof film of exhausr port, be provided with O type rubber seal between valve and the valve seat, valve seat and lower body joint also are provided with O type rubber seal, also are provided with valve reseting spring on the valve seat.On lower body, also be provided with intake interface, the interface and handle interface and homophony pole and secondary adjust bar of giving vent to anger.In lower body, be provided with inlet chamber, outlet chamber, master control chamber and subcontrol chamber below piston, intake interface is communicated with inlet chamber, and the interface of giving vent to anger is communicated with outlet chamber, the master control chamber is communicated in the homophony pole in the lower body, and the subcontrol chamber is communicated in the secondary adjust bar in the lower body.Described homophony pole and secondary adjust bar are located at it respectively and are regulated on the pole socket, and seal with O type rubber seal.On lower body, also be provided with master control chamber interface and subcontrol chamber interface, be respectively equipped with steel ball above and block up.

The utility model compared with prior art has following obvious advantage and innovation.The utility model has increased master control chamber and subcontrol chamber, has increased the volume of air under pressure, has strengthened servo power.(2) set up homophony pole and secondary adjust bar in lower body, homophony pole and secondary adjust bar can up-down adjustment, can regulate according to need of work, strengthened the operating range of servo.

The utility model is applicable to motorcoach, lorry and trailer.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Description of drawings

Fig. 1 is the utility model rectifier body structure cut-away view.

Fig. 2 is the utility model side cut-away view.

Fig. 3 is the utility model bottom construction upward view.

The specific embodiment

As shown in Figure 1, the utility model is made up of relay valve upper body 12 and relay valve lower body 13, relay valve body is placed on the support 27, between relay valve upper body 12 and lower body 13, be provided with and handle chamber 1, also be provided with relay valve piston 14, piston 14 is provided with some O type rubber seal 17 with lower body 13 junction surfaces, 18,19,20, the bottom of piston 14 is provided with valve 15 and piston reset spring 21, valve 15 is located on the valve seat 16, the below of valve seat 16 is provided with exhausr port 9 and the dustproof film 26 of exhausr port, be provided with O type rubber seal 23 between valve 15 and the

valve seat

16,24, valve seat 16 also is provided with O type rubber seal 24 with lower body 13 joints, and valve seat 16 is provided with valve reseting spring 22.On lower body 13, also be provided with intake interface 7, the interface 8 and handle interface 6 of giving vent to anger.In lower body 13, below piston 14, be provided with inlet chamber 2, outlet chamber 3, master control chamber 4 and subcontrol chamber 5, intake interface 7 is communicated with inlet chamber 2, and the interface 8 of giving vent to anger is communicated with outlet chamber 3.Main control interface 10 is communicated with master control chamber 4; Subcontrol interface 11 is communicated with subcontrol chamber 5.

As shown in Figure 2, also be provided with homophony pole 28 and secondary adjust bar 34 in lower body 13, master control chamber 4 is communicated in the homophony pole 28 in the lower body 13, and subcontrol chamber 5 is communicated in the secondary adjust bar 34 in the lower body 13.Described homophony pole 28 and secondary adjust bar 34 are located at it respectively and are regulated on the pole socket 29, and seal with O type rubber seal 30,31.Homophony pole 28 and secondary adjust bar 34 are middle porose, can make its control corresponding chamber lead to atmosphere, and adjust bar is regulated downwards, can seal logical plasmas channel, open with outlet chamber 3 to communicate.

As shown in Figure 3, on lower body 13, also be provided with master control chamber interface 10 and subcontrol chamber interface 11, be respectively equipped with steel ball stifled 32,33 above.

The utility model is applicable to motorcoach, lorry and trailer.

Claims

1, a kind of three ratio relay valves, formed by relay valve upper body (12) and relay valve lower body (13), between relay valve upper body (12) and lower body (13), be provided with and handle chamber (1), also be provided with relay valve piston (14), the bottom of piston (14) is provided with valve (15) and piston reset spring (21), valve (15) is located on the valve seat (16), the below of valve seat (16) is provided with exhausr port (9) and the dustproof film (26) of exhausr port, valve seat (16) is provided with valve reseting spring (22), on lower body (13), also be provided with intake interface (7), the interface (8) of giving vent to anger, on upper body (12), be provided with and handle interface (6), in lower body (13), in piston (14), be provided with inlet chamber (2) and outlet chamber (3) and it is characterized in that in piston, also being provided with master control chamber (4) and subcontrol chamber (5).

2, three ratio relay valves according to claim 1, it is characterized in that in lower body (13), also being provided with the homophony pole (28) and the secondary adjust bar (34) of energy up-down adjustment, master control chamber (4) is communicated in the homophony pole (28) in the lower body (13), subcontrol chamber (5) is communicated in the secondary adjust bar (34) in the lower body (13), and described homophony pole (28) and secondary adjust bar (34) are located at it respectively and are regulated on the pole socket (29).

3, three ratio relay valves according to claim 1 is characterized in that also being provided with the master control chamber interface (10) in logical master control chamber (4) and the subcontrol chamber interface (11) in logical subcontrol chamber (5) on lower body (13).