CN214396718U

CN214396718U - Electromagnetic relay valve

Info

Publication number: CN214396718U
Application number: CN202023210466.4U
Authority: CN
Inventors: 韩亭亭; 张龙才; 万光耀; 任王玮; 林苏一
Original assignee: Wuhu Shengli Technology Shares Co ltd
Current assignee: Wuhu Shengli Technology Shares Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an electromagnetic relay valve, its characterized in that: the brake device comprises an upper shell, a lower shell and an electromagnetic valve, wherein the upper shell is hermetically connected onto the lower shell, the electromagnetic valve is connected onto the upper shell, the lower shell is provided with an air inlet for air intake, an air outlet for communicating with a brake chamber and an exhaust port for exhausting redundant air, the upper shell is provided with a control air port, and the control air port is communicated with a piston of the lower shell. The air inlet is communicated with the air storage cylinder, the control air port is communicated with the air source through a pipeline, a control valve for controlling the pressure of the control air port is arranged on the pipeline, and the air outlet is communicated with the external atmosphere. The valve, the return spring and the spring seat are arranged in the lower shell and used for controlling the opening and closing of the air outlet, the valve is installed on the upper portion of the spring seat, the return spring is sleeved on the spring seat, one end of the return spring is connected to the spring seat, the other end of the return spring is connected to the bottom of the valve, and the spring seat is installed above the air outlet in the lower shell.

Description

Electromagnetic relay valve

Technical Field

The utility model belongs to the technical field of the vehicle braking, concretely relates to electromagnetic relay valve.

Background

The conventional relay valve for the ABS system is a combination of an ABS electromagnetic valve and a relay valve, and the control between electricity and gas is completed. Wherein, the connecting joints are more, the pipelines are longer, the cost is higher, and the pipelines are easy to be damaged.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a simple structure, convenient to use's electromagnetic relay valve can satisfy electromagnetic function and relay valve function simultaneously, and reduce cost, improvement performance have avoided spare part attach fitting too much, fragile problem to improve the performance and the life of product.

In order to achieve the above purpose, the technical scheme of the utility model is that: an electromagnetic relay valve, characterized in that: the brake device comprises an upper shell, a lower shell and an electromagnetic valve, wherein the upper shell is hermetically connected onto the lower shell, the electromagnetic valve is connected onto the upper shell, the lower shell is provided with an air inlet for air intake, an air outlet for communicating with a brake chamber and an exhaust port for exhausting redundant air, the upper shell is provided with a control air port, and the control air port is communicated with a piston of the lower shell.

Further, the lower casing is internally provided with a valve, a return spring and a spring seat for controlling the opening and closing of the gas outlet, the valve is installed on the upper portion of the spring seat, the return spring is sleeved on the spring seat, one end of the return spring is connected to the spring seat, the other end of the return spring is connected to the bottom of the valve, and the spring seat is installed above the gas outlet in the lower casing.

Further, the lower casing is internally provided with a piston and a cylinder for mounting the piston, the cylinder is positioned above the valve, the piston is sleeved on the cylinder, the edge of the piston is hermetically connected with the cavity of the lower casing through a sealing ring, and a control air port is communicated with the cavity on the upper part of the piston in the lower casing.

Furthermore, a through hole is formed in the column body, one end of the through hole is communicated with the electromagnetic valve, the other end of the through hole is communicated with the exhaust port, the electromagnetic valve is not electrified, the valve core of the electromagnetic valve is in sealing contact with the through hole, the electromagnetic valve is electrified, the valve core of the electromagnetic valve moves upwards, the valve core is separated from the through hole, the control air port is communicated with the through hole, and the through hole is communicated with the exhaust port.

Furthermore, the solenoid valve includes solenoid valve upper cover, solenoid valve casing and sets up the cavity on last casing, cavity and through-hole intercommunication, and the case setting is in solenoid valve casing and cavity, and the top at solenoid valve casing is connected to the solenoid valve upper cover, and solenoid valve casing bottom is connected on last casing and with the cavity intercommunication.

Further, the case includes coil, quiet iron core and moves the iron core, and the coil setting is in solenoid valve casing, and quiet iron core setting is in the coil, and the top of quiet iron core is connected on the solenoid valve upper cover, moves the below that the iron core is located quiet iron core, moves the one end of iron core and is located solenoid valve casing, moves the other end of iron core and is located the cavity on the casing and can reciprocate in the cavity.

Furthermore, a sealing plate for plugging the through hole is arranged at one end, far away from the static iron core, of the movable iron core, the electromagnetic valve is not electrified, and the movable iron core is located in the cavity and the sealing plate is in close contact with the through hole.

Furthermore, still be equipped with damping spring on the movable iron core, damping spring cup joints on the movable iron core, and damping spring's one end is connected on the movable iron core, and damping spring's the other end is connected on the closing plate.

Furthermore, one end of the piston, which is close to the valve, is provided with an avoiding groove for avoiding the spring seat, a protrusion for opening the valve is formed in the circumferential direction of the avoiding groove on the piston, gas coming from the control gas port acts on the piston, the piston moves downwards, the bottom of the protrusion at the end part of the piston is in contact with the valve, the valve is pressed downwards, the valve is opened, the gas outlet is opened, and the gas coming from the gas inlet enters the brake chamber through the gas outlet to be braked.

Adopt the utility model discloses technical scheme's advantage does:

1. the utility model adds the electromagnetic valve on the relay valve, the air pressure value of the air outlet of the original relay valve is synchronous with the air pressure of the control air port, and the electromagnetic valve is used for controlling the brake chamber behind the air outlet, helping the brake to rapidly inflate and rapidly exhaust; in the electromagnetic relay valve of the utility model, the air pressure value of the air outlet of the electric control relay valve is synchronous with the air pressure of the control air port, and the electric control relay valve is used for controlling the brake chamber connected with the air outlet, helping the brake to rapidly inflate and rapidly exhaust; an electromagnetic valve is added in the electric control relay valve, so that the function of quick exhaust of a brake chamber can be met, and the electric control relay valve can be controlled by air pressure or a circuit; the risk that the brake chamber cannot exhaust and the vehicle cannot release braking due to piston clamping damage or gas pipeline performance failure of the original relay valve is solved.

2. The utility model discloses simplified the connection structure of original product, original structure still need additionally connect an ABS solenoid valve if think the electric control relay valve, and can not direct action in the relay valve. The electromagnetic relay valve of the utility model can be directly connected with a circuit switch through the electric control relay valve if the system needs to rapidly exhaust the brake chamber; the utility model discloses the electromagnetism relay valve of new construction obviously improves than original structure workability and reliability, and the fault rate is reduced to 0.1% by 10%, has stopped the brake chamber and has caused carminative risk because of relay valve piston jamming damage.

3. The utility model discloses simplify system design pipeline structure, reduced tube coupling and ABS solenoid valve, improved the productivity and the performance of product, reduced purchasing cost, stopped the brake chamber and caused not carminative risk because of the relay valve damages, for the big equipment in batches of vehicle, the basis has been laid down in after-sales repair.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description:

fig. 1 is a schematic cross-sectional view of the electromagnetic relay valve of the present invention;

fig. 2 is a schematic side view of the electromagnetic relay valve of the present invention.

The labels in the above figures are respectively: 1. an upper housing; 11. a control port; 2. a lower housing; 21. an air inlet; 22. an air outlet; 23. an exhaust port; 24. a piston; 241. an avoidance groove; 242. a protrusion; 25. a cylinder; 251. a through hole; 3. an electromagnetic valve; 31. an electromagnetic valve upper cover; 32. a solenoid valve housing; 33. a cavity; 34. a coil; 35. a stationary iron core; 36. a movable iron core; 37. a sealing plate; 38. a damping spring; 4. a valve; 41. a return spring; 42. a spring seat.

Detailed Description

In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.

As shown in fig. 1 and 2, an electromagnetic relay valve is characterized in that: including last casing 1, casing 2 and solenoid valve 3 down, go up casing 1 sealing connection on casing 2 down, solenoid valve 3 connects on last casing 1, is equipped with the air inlet 21 that is used for admitting air, is used for the gas outlet 22 and the gas vent 23 that is used for discharging unnecessary gas with the brake chamber intercommunication on casing 2 down, is equipped with control gas port 11 on going up casing 1, and control gas port 11 communicates with the piston 24 of casing 2 down. The air inlet 21 is communicated with the air storage cylinder, the control air port 11 is communicated with an air source through a pipeline, a control valve for controlling the pressure of the control air port 11 is arranged on the pipeline, and the air outlet 23 is communicated with the external atmosphere.

The lower shell 2 is internally provided with a valve 4, a return spring 41 and a spring seat 42 for controlling the opening and closing of the air outlet 22, the valve 4 is installed on the upper portion of the spring seat 42, the return spring 41 is sleeved on the spring seat 42, one end of the return spring 41 is connected to the spring seat 42, the other end of the return spring 41 is connected to the bottom of the valve 4, and the spring seat 42 is installed above the air outlet 23 in the lower shell 2.

Still be equipped with piston 24 and the cylinder 25 that is used for installing piston 24 in the lower casing 2, cylinder 25 is located the top of valve 4, and piston 24 cup joints on cylinder 25, and the edge of piston 24 passes through sealing washer and lower casing 2's cavity sealing connection, and control gas port 11 communicates with the cavity on piston 24 upper portion in lower casing 2. The air enters the upper part of the piston 24 from the control air port 11, the piston 24 moves downwards along the main body 25 under the pressure of the air entering from the control air port 11, the tail end of the piston 24 is in contact with the valve 4 to press the valve 4 downwards, the air outlet 22 is opened, the air outlet 23 is blocked by the valve 4, and the air entering from the air inlet 21 enters the brake chamber from the air outlet 22 and is used for braking the vehicle. When the pressure of the control air port 11 is zero, namely air is not being fed, the piston 24 moves upwards along the cylinder 25, the tail end of the piston 24 is separated from the valve 4, the valve 4 moves upwards under the action of the return spring 41 to block the air outlet 22, air is cut off from entering the brake chamber, the air outlet 23 is opened, and the air pressure in the brake chamber is discharged into the atmosphere through the air outlet.

The column body 25 is provided with a through hole 251, one end of the through hole 251 is communicated with the electromagnetic valve 3, the other end of the through hole 251 is communicated with the exhaust port 23, the electromagnetic valve 3 is not electrified, a valve core of the electromagnetic valve 3 is in sealing contact with the through hole 251, the electromagnetic valve 3 is electrified, the valve core of the electromagnetic valve 3 moves upwards, the valve core is separated from the through hole 251, the control air port 11 is communicated with the through hole 251, and the through hole 251 is communicated with the exhaust port 23.

The solenoid valve 3 comprises a solenoid valve upper cover 31, a solenoid valve housing 32 and a cavity 33 arranged on the upper housing 1, the cavity 33 is communicated with the through hole 251, the valve core is arranged in the solenoid valve housing 32 and the cavity 33, the solenoid valve upper cover 31 is connected to the top of the solenoid valve housing 32, and the bottom of the solenoid valve housing 32 is connected to the upper housing 1 and communicated with the cavity 33.

The valve core comprises a coil 34, a static iron core 35 and a movable iron core 36, wherein the coil 34 is arranged in the solenoid valve shell 32, the static iron core 35 is arranged in the coil 34, the top end of the static iron core 35 is connected to the solenoid valve upper cover 31, the movable iron core 36 is positioned below the static iron core 35, one end of the movable iron core 36 is positioned in the solenoid valve shell 32, and the other end of the movable iron core 36 is positioned in the cavity 33 on the upper shell 1 and can move up and down in the cavity 33.

And a sealing plate 37 for sealing the through hole 251 is arranged at one end of the movable iron core 36, which is far away from the static iron core 35, the sealing plate 37 is made of flexible material, the electromagnetic valve 3 is not electrified, the movable iron core 36 is positioned in the cavity 33, and the sealing plate 37 is tightly contacted with the through hole 251. The solenoid valve 3 is electrified, the movable iron core 36 moves upwards, and the sealing plate 37 is separated from the through hole 251.

The movable iron core 36 is further provided with a damping spring 38, the damping spring 38 is sleeved on the movable iron core 36, one end of the damping spring 38 is connected to the movable iron core 36, and the other end of the damping spring 38 is connected to the sealing plate 37.

An avoiding groove 241 for avoiding the spring seat 42 is arranged at one end of the piston 24 close to the valve 4, a protrusion 242 for opening the valve 4 is formed in the circumferential direction of the avoiding groove 241 on the piston 24, air entering from a control air port acts on the piston, the piston moves downwards, the bottom of the protrusion 242 at the end part of the piston is contacted with the valve 4 to press the valve 4 downwards, the valve 4 is opened, then the air outlet 22 is opened, and the air entering from the air inlet 21 enters the brake chamber through the air outlet 22 to be automatically controlled.

The utility model discloses electromagnetic relay valve's theory of operation does: when the vehicle brakes, under the pressure of the air entering from the control air port 11, the piston 24 is pushed to move downwards, the valve 4 is opened, namely, the valve 4 moves downwards under the pressure of the piston 24 so as to open the air outlet 22, and the air from the air storage cylinder flows into the brake chamber communicated with the air outlet 22, namely, the air enters the brake chamber from the air outlet 22, so that the braking is generated. After the air pressure of the control air port is released, the piston 24 moves upwards under the action of the air pressure, the valve 4 moves upwards under the action of the return spring 41, the air outlet 22 is blocked, the air outlet 23 is opened, and the air in the brake chamber is discharged into the atmosphere through the air outlet 23. The working process of the electromagnetic valve 3 is as follows: when braking, the electromagnetic valve 3 is not electrified, the movable iron core 36 is positioned in the cavity 33, and the sealing plate 37 is tightly contacted with the through hole 251. When the brake is released, the electromagnetic valve 3 is electrified, the movable iron core 36 moves upwards, the sealing plate 37 is separated from the through hole 251, the gas entering from the control gas port 11 directly enters the exhaust port 23 from the through hole 251 and is exhausted into the atmosphere, at the moment, the piston 24 cannot be subjected to the pressure of the gas entering from the control gas port 11, the valve 4 still blocks the gas outlet 22, the function of the relay valve is invalid, no gas pressure value exists at the gas outlet of the relay valve no matter how the gas pressure value of the control gas port changes, and the brake chamber is rapidly released from the brake under the electric control action.

The air is introduced into the air inlet 21 on the lower shell 2 to reach the rated working air pressure (1MPa), and the upper assembly of the valve body plays a role in sealing; the control air port 11 of the upper shell 1 respectively enters the air pressures of 300KPa, 500KPa and 784KPa, the relay piston 24 moves under the action of the air pressure, the valve 4 is slowly opened, and the air pressure of different pressures is provided at the air outlet 22. When the air pressure at the control air port 11 is zero, the air pressure at the air outlet 22 is quickly zero. However, when the electromagnetic valve 3 is energized, the relay valve fails, no matter how much the air pressure of the control air port 11 is, the air pressure of the air outlet is always zero, and meanwhile, the air pressure of the brake chamber can be exhausted through the relay valve.

The utility model adds the electromagnetic valve on the relay valve, the air pressure value of the air outlet of the original relay valve is synchronous with the air pressure of the control air port, and the electromagnetic valve is used for controlling the brake chamber behind the air outlet, helping the brake to rapidly inflate and rapidly exhaust; in the electromagnetic relay valve of the utility model, the air pressure value of the air outlet 22 of the electric control relay valve is synchronous with the air pressure of the control air port 11, and the electric control relay valve is used for controlling the brake chamber connected with the air outlet, helping brake to rapidly inflate and rapidly exhaust; an electromagnetic valve is added in the electric control relay valve, so that the function of quick exhaust of a brake chamber can be met, and the electric control relay valve can be controlled by air pressure or a circuit; the risk that the brake chamber cannot exhaust and the vehicle cannot release braking due to piston clamping damage or gas pipeline performance failure of the original relay valve is solved.

The utility model discloses simplified the connection structure of original product, original structure still need additionally connect an ABS solenoid valve if think the electric control relay valve, and can not direct action in the relay valve. The electromagnetic relay valve of the utility model can be directly connected with a circuit switch through the electric control relay valve if the system needs to rapidly exhaust the brake chamber; the utility model discloses the electromagnetism relay valve of new construction obviously improves than original structure workability and reliability, and the fault rate is reduced to 0.1% by 10%, has stopped the brake chamber and has caused carminative risk because of relay valve piston jamming damage.

The utility model discloses simplify system design pipeline structure, reduced tube coupling and ABS solenoid valve, improved the productivity and the performance of product, reduced purchasing cost, stopped the brake chamber and caused not carminative risk because of the relay valve damages, for the big equipment in batches of vehicle, the basis has been laid down in after-sales repair.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.

Claims

1. An electromagnetic relay valve, characterized in that: including last casing (1), casing (2) and solenoid valve (3) down, go up casing (1) sealing connection under on casing (2), solenoid valve (3) are connected on last casing (1), are equipped with on casing (2) down and are used for the air inlet (21) of admitting air, be used for with gas outlet (22) of brake chamber intercommunication and be used for exhausting gas vent (23) of unnecessary gas, are equipped with control gas port (11) on going up casing (1), control gas port (11) and piston (24) the intercommunication of casing (2) down.

2. The electromagnetic relay valve of claim 1, wherein: be equipped with valve (4), return spring (41) and spring holder (42) that are used for controlling gas outlet (22) switching in lower casing (2), the upper portion at spring holder (42) is installed in valve (4), return spring (41) cup joint on spring holder (42), the one end of return spring (41) is connected on spring holder (42), the bottom of valve (4) is connected to the other end of return spring (41), spring holder (42) are installed and are located the top of gas vent (23) in lower casing (2).

3. The electromagnetic relay valve as defined in claim 2, wherein: still be equipped with piston (24) and cylinder (25) that are used for installing piston (24) in lower casing (2), cylinder (25) are located the top of valve (4), and piston (24) cup joint on cylinder (25), and the edge of piston (24) passes through the cavity sealing connection of sealing washer with lower casing (2), control gas port (11) and the cavity intercommunication on lower casing (2) inner piston (24) upper portion.

4. An electromagnetic relay valve as defined in claim 3, wherein: the cylinder (25) is provided with a through hole (251), one end of the through hole (251) is communicated with the electromagnetic valve (3), the other end of the through hole (251) is communicated with the exhaust port (23), the electromagnetic valve (3) is not electrified, a valve core of the electromagnetic valve (3) is in sealing contact with the through hole (251), the electromagnetic valve (3) is electrified, the valve core of the electromagnetic valve (3) moves upwards, the valve core is separated from the through hole (251), the control air port (11) is communicated with the through hole (251), and the through hole (251) is communicated with the exhaust port (23).

5. The electromagnetic relay valve of claim 4, wherein: the electromagnetic valve (3) comprises an electromagnetic valve upper cover (31), an electromagnetic valve shell (32) and a cavity (33) arranged on the upper shell (1), the cavity (33) is communicated with the through hole (251), the valve core is arranged in the electromagnetic valve shell (32) and the cavity (33), the electromagnetic valve upper cover (31) is connected to the top of the electromagnetic valve shell (32), and the bottom of the electromagnetic valve shell (32) is connected to the upper shell (1) and communicated with the cavity (33).

6. The electromagnetic relay valve of claim 5, wherein: the valve core comprises a coil (34), a static iron core (35) and a movable iron core (36), the coil (34) is arranged in an electromagnetic valve shell (32), the static iron core (35) is arranged in the coil (34), the top end of the static iron core (35) is connected to an electromagnetic valve upper cover (31), the movable iron core (36) is located below the static iron core (35), one end of the movable iron core (36) is located in the electromagnetic valve shell (32), and the other end of the movable iron core (36) is located in a cavity (33) in the upper shell (1) and can move up and down in the cavity (33).

7. The electromagnetic relay valve of claim 6, wherein: and a sealing plate (37) for sealing the through hole (251) is arranged at one end of the movable iron core (36) far away from the static iron core (35), the electromagnetic valve (3) is not electrified, the movable iron core (36) is positioned in the cavity (33), and the sealing plate (37) is tightly contacted with the through hole (251).

8. The electromagnetic relay valve of claim 7, wherein: the movable iron core (36) is further provided with a damping spring (38), the damping spring (38) is sleeved on the movable iron core (36), one end of the damping spring (38) is connected to the movable iron core (36), and the other end of the damping spring (38) is connected to the sealing plate (37).

9. An electromagnetic relay valve as claimed in any one of claims 3 to 8, wherein: one end of the piston (24) close to the valve (4) is provided with an avoiding groove (241) for avoiding the spring seat (42), a bulge (242) for opening the valve (4) is formed in the circumferential direction of the piston (24) in the avoiding groove (241), gas coming in from the control gas port acts on the piston, the piston moves downwards, the bottom of the bulge (242) at the end part of the piston is in contact with the valve (4), the valve (4) is pressed downwards, the valve (4) is opened, the gas outlet (22) is opened, and gas coming in from the gas inlet (21) enters the brake chamber through the gas outlet (22) to brake.