CN211779167U

CN211779167U - Diaphragm and piston type relay valve assembly

Info

Publication number: CN211779167U
Application number: CN202020276207.2U
Authority: CN
Inventors: 陈伟平; 唐克艺
Original assignee: Zhejiang Great Science & Technology Co ltd
Current assignee: Zhejiang Great Science & Technology Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-27
Anticipated expiration: 2030-03-09

Abstract

The embodiment of the utility model provides a diaphragm and piston type relay valve assembly, belonging to the technical field of automobile accessories, comprising an upper valve body; the lower valve body is fixedly connected below the upper valve body through a bolt; the piston diaphragm is fixedly connected to the joint of the upper valve body and the lower valve body through bolts, and a stamping sheet is arranged at the bottom of the piston diaphragm. The technical effect of replacing blocks among the internal gases of the relay assembly is achieved.

Description

Diaphragm and piston type relay valve assembly

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a diaphragm adds piston relay valve assembly.

Background

The relay valve belongs to a part of an automobile air brake system, in the brake system of a truck, the relay valve plays a role in shortening reaction time and pressure establishment time, the currently commonly used relay valve adopts a piston type, and a control port air chamber and an output port air chamber are separated. When the brake is released, the air pressure of the control port is released through the master cylinder, and the transmission of the replacement pressure between the air and the master cylinder is not rapid enough, so that the brake is slow to some extent when in use.

Therefore, the technical problems of the prior art are as follows: how to make the start of the valve inside the relay valve assembly faster.

Disclosure of Invention

The embodiment of the application provides a diaphragm and piston type relay valve assembly, and solves the technical problem that how to enable the starting of an internal valve of the relay valve assembly to be faster in the prior art; the technical effect of replacing blocks among the internal gases of the relay assembly is achieved.

The embodiment of the application provides a diaphragm adds piston relay valve assembly, and relay valve assembly includes:

an upper valve body; the lower valve body is fixedly connected below the upper valve body through a bolt; the piston diaphragm is fixedly connected to the joint of the upper valve body and the lower valve body through bolts, and a stamping sheet is arranged at the bottom of the piston diaphragm.

Preferably, an air inlet joint is inserted into the left side of the upper valve body, a first air inlet is formed in the air inlet joint, and a second air inlet is formed in the right side of the upper valve body.

Preferably, the right side of the first air inlet is communicated with a piston channel, a piston is movably connected inside the piston channel, the right side of the piston channel is communicated with an air channel, and the air channel is communicated with the second air inlet.

Preferably, the bottom of the piston channel is communicated with a first channel, the bottom of the first channel is communicated with a second channel, the second channel is located in the lower valve body and located below the piston diaphragm, the bottom of the second channel is communicated with a third channel, and the bottom of the third channel is communicated with a fourth channel.

Preferably, the left side and the right side of the lower valve body are respectively provided with a first exhaust port and a second exhaust port, the first exhaust port and the fourth channel are communicated with each other, the lower valve body is internally provided with an exhaust channel, the bottom of the exhaust channel is provided with a pressure opening valve, the second exhaust port and the pressure opening valve are communicated with each other, and the bottom of the pressure opening valve is communicated with a placing cavity.

Preferably, the piston diaphragm further includes: the groove is formed in the middle of the piston diaphragm; the vent and the connecting port are arranged at the groove, the connecting port is used for connecting the stamping sheet, and the vent is arranged at one side of the connecting port and is communicated with the first channel; the fixing holes are formed in four corners of the piston diaphragm and used for fixing the inserting bolts.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

in the embodiment of the application, through last valve body and be provided with the piston diaphragm down between the valve body, the piston diaphragm seals first passageway when atmospheric pressure rises to certain pressure value, with the mutual split between piston passageway and the second passageway, this moment is the same with the relay valve effect commonly used, when relieving the braking, the atmospheric pressure hangs down to a definite value, and first air inlet and second gas vent communicate with each other, and the atmospheric pressure of first air inlet can be arranged to the greatest extent through the exhaust passage of delivery outlet fast.

Drawings

FIG. 1 is a schematic cross-sectional view of a diaphragm and piston relay valve assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic top view of a piston diaphragm according to an embodiment of the present disclosure;

fig. 3 is a front sectional structural view of the piston diaphragm.

Reference numerals:

1. an upper valve body; 11. a piston channel; 12. a gas channel; 13. a piston; 14. a first channel; 2. a lower valve body; 21. a second channel; 22. a third channel; 23. a fourth channel; 24. a first exhaust port; 25. a second exhaust port; 3. an air inlet joint; 31. a first air inlet; 32. a second air inlet; 4. a piston diaphragm; 41. a groove; 42. a connecting port; 43. a vent; 44. a fixing hole; 5. punching a sheet; 6. an exhaust passage; 7. opening the valve by pressure; 8. a placement chamber.

Detailed Description

The embodiment of the application provides a diaphragm and piston type relay valve assembly, a piston 13 diaphragm is arranged between an upper valve body 1 and a lower valve body 2, when the air pressure of the piston 13 diaphragm rises to a certain pressure value, the piston 13 diaphragm seals a first channel 14, the channel 11 of the piston 13 and a second channel 21 are mutually separated, the effect of the relay valve is the same as that of a common relay valve, when the brake is released, the air pressure is reduced to a certain value, a first air inlet 31 is communicated with a second air outlet 25, and the air pressure of the first air inlet 31 can be quickly exhausted through an exhaust channel 6 of an output port; the technical problem of how to enable the starting of the valve inside the relay valve assembly to be faster in the prior art is solved; the technical effect of replacing blocks among the internal gases of the relay assembly is achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example one

A diaphragm and piston type relay valve assembly is disclosed, referring to the attached figures 1-3 of the specification, an upper valve body 1; the lower valve body 2 is fixedly connected below the upper valve body 1 through bolts; the piston 13 diaphragm, the piston 13 diaphragm passes through the junction of bolt fixed connection at last valve body 1 and lower valve body 2, and the bottom of piston 13 diaphragm is provided with punching press piece 5.

The left side of the upper valve body 1 is inserted with the air inlet connector 3, a first air inlet 31 is arranged inside the air inlet connector 3, a second air inlet 32 is arranged on the right side of the upper valve body 1, the right side of the first air inlet 31 is communicated with a piston 13 channel 11, a piston 13 is movably connected inside the piston 13 channel 11, the right side of the piston 13 channel 11 is communicated with an air channel 12, and the air channel 12 is communicated with the second air inlet 32.

The bottom of the channel 11 of the piston 13 is communicated with a first channel 14, the bottom of the first channel 14 is communicated with a second channel 21, the second channel 21 is positioned in the lower valve body 2 and below the diaphragm of the piston 13, the bottom of the second channel 21 is communicated with a third channel 22, and the bottom of the third channel 22 is communicated with a fourth channel 23.

The left and right sides of lower valve body 2 is provided with first gas vent 24 and second gas vent 25 respectively, and first gas vent 24 and fourth passageway 23 switch on each other, and the inside of lower valve body 2 is provided with exhaust passage 6, and exhaust passage 6's bottom is provided with pressure and opens valve 7, and second gas vent 25 and pressure open valve 7 switch on each other, and the bottom of pressure open valve 7 communicates with and has place the chamber 8.

The piston 13 diaphragm further comprises: a groove 41, wherein the groove 41 is arranged in the middle position of the diaphragm of the piston 13; the air vent 43 and the connecting port 42 are arranged at the groove 41, the connecting port 42 is used for connecting the stamping sheet 5, and the air vent 43 is arranged at one side of the connecting port 42 and is communicated with the first channel 14; and fixing holes 44, wherein the fixing holes 44 are arranged at four corners of the membrane of the piston 13 and are used for fixing by inserting bolts.

The working principle is as follows:

the air pressure of the control port is released through a master cylinder (brake valve). When the air pressure rises to a certain pressure value, the piston 13 receives the pressure from the first air inlet 31 and moves towards the other side, so that the first channel 14 at the bottom of the air channel 12 leaks to facilitate the circulation of air, the piston 13 membrane seals the first channel 14 and separates the channel 11 and the second channel 21 of the piston 13 from each other, the effect of the relay valve is the same as that of a common relay valve, when the brake is released, the air pressure is reduced to a certain value, the first air inlet 31 is communicated with the second air outlet 25, and the air pressure of the first air inlet 31 can be exhausted through the exhaust channel 6 of the output port quickly.

The technical effects are as follows:

1. in the embodiment of the application, through last valve body and be provided with the piston diaphragm down between the valve body, the piston diaphragm seals first passageway when atmospheric pressure rises to certain pressure value, with the mutual split between piston passageway and the second passageway, this moment is the same with the relay valve effect commonly used, when relieving the braking, the atmospheric pressure hangs down to a definite value, and first air inlet and second gas vent communicate with each other, and the atmospheric pressure of first air inlet can be arranged to the greatest extent through the exhaust passage of delivery outlet fast.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A diaphragm and piston relay valve assembly, said relay valve assembly comprising:

an upper valve body;

the lower valve body is fixedly connected below the upper valve body through a bolt;

the piston diaphragm is fixedly connected to the joint of the upper valve body and the lower valve body through bolts, and a stamping sheet is arranged at the bottom of the piston diaphragm.

2. The diaphragm and piston relay valve assembly as defined in claim 1, wherein said upper valve body has an inlet fitting inserted into a left side thereof, said inlet fitting having a first inlet port disposed therein and a second inlet port disposed in a right side thereof.

3. The diaphragm and piston relay valve assembly as defined in claim 2, wherein said first inlet port communicates with a piston passage at a right side thereof, said piston passage having a piston movably connected therein, said piston passage communicating with a gas passage at a right side thereof, said gas passage communicating with said second inlet port.

4. The diaphragm and piston relay valve assembly of claim 3, wherein said piston passage has a bottom communicating with a first passage, said first passage has a bottom communicating with a second passage, said second passage is located in said lower valve body and below said piston diaphragm, said second passage has a bottom communicating with a third passage, and said third passage has a bottom communicating with a fourth passage.

5. The diaphragm and piston relay valve assembly according to claim 4, wherein a first exhaust port and a second exhaust port are respectively disposed on left and right sides of the lower valve body, the first exhaust port and the fourth passage are communicated with each other, an exhaust passage is disposed inside the lower valve body, a pressure-opening valve is disposed at a bottom of the exhaust passage, the second exhaust port and the pressure-opening valve are communicated with each other, and a placement chamber is communicated with a bottom of the pressure-opening valve.

6. The diaphragm-and-piston relay valve assembly of claim 1, wherein said piston diaphragm further comprises:

the groove is formed in the middle of the piston diaphragm;

the vent and the connecting port are arranged at the groove, the connecting port is used for connecting the stamping sheet, and the vent is arranged at one side of the connecting port and is communicated with the first channel;

the fixing holes are formed in four corners of the piston diaphragm and used for fixing the inserting bolts.