CN219911947U

CN219911947U - Electromagnetic valve

Info

Publication number: CN219911947U
Application number: CN202321282123.XU
Authority: CN
Inventors: 孙甲
Original assignee: Solh Technology Zhejiang Co ltd
Current assignee: Solh Technology Zhejiang Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-27
Anticipated expiration: 2033-05-24

Abstract

The utility model discloses an electromagnetic valve, which has the technical scheme that the electromagnetic valve comprises a valve body, an inlet channel and an outlet channel, wherein a valve chamber is arranged in the valve body, a valve port which is used for communicating the inlet channel with the outlet channel is arranged in the valve chamber, a disc piece is arranged in the valve body, the disc piece is arranged above the valve port, a diaphragm is arranged between the disc piece and the valve port, a guide ring is arranged in the middle of the diaphragm, one end of the guide ring is embedded on the diaphragm, the other end of the guide ring is abutted against the disc piece, a hole is arranged on the guide ring, and the hole is communicated with the valve port; the valve port is provided with at least one annular convex rib, and the convex direction of the annular convex rib faces one side of the diaphragm; an electromagnetic driving device is arranged above the disc piece, a movable iron core which is arranged in a sliding manner is arranged in the electromagnetic driving device, and one end of the movable iron core penetrates through the disc piece and is connected with the pilot ring. The utility model has the advantages of good sealing performance, low working noise and high reliability in high-frequency opening and closing.

Description

Electromagnetic valve

Technical Field

The utility model relates to the technical field of valve bodies, in particular to an electromagnetic valve.

Background

The electromagnetic valve is a common fluid control device in an automatic control circuit, belongs to an actuator, and is used for adjusting the circulation, flow and other parameters of media such as liquid, gas and the like in an industrial control system, and has the advantages of low cost, small volume, high switching speed, simple wiring, low power consumption, high cost performance, economy and practicability.

At present, the existing electromagnetic valve is used for controlling the valve assembly to be opened and closed through an electromagnet, the reciprocating frequency of a movable iron core of the electromagnet is high, and the movable iron core can frequently contact and collide with a static valve body part in the use process. The movement of the plunger causes collision sound between the components. Such a collision sound makes the operation of the solenoid valve noisier, and a long-term collision also causes play in the valve assembly, affecting the overall sealing performance, and thus it is desirable to mitigate such a collision. Meanwhile, when the component driven by the movable iron core is sealed with the valve port, the two end surfaces inevitably generate adsorption due to the existence of hydraulic pressure or air pressure, and when the movable iron core moves reversely, the adsorption can delay the action of the movable iron core, so that the reliability of the electromagnetic valve is reduced in a working environment of high-frequency opening and closing; the sudden disappearance of the adsorption force during the movement can also aggravate the impact generated by the movable iron core, so that the internal structure of the electromagnetic valve needs to be adjusted to solve the problems.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides the electromagnet which has the advantages of good sealing performance, low working noise and high reliability in high-frequency opening and closing.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a solenoid valve, includes valve body, inlet channel and outlet channel, be provided with the valve chamber in the valve body, be equipped with the valve port with inlet channel and outlet channel intercommunication in the valve chamber, its characterized in that: the valve body is internally provided with a disc piece, the disc piece is arranged above the valve port, a diaphragm is arranged between the disc piece and the valve port, the middle part of the diaphragm is provided with a guide ring, one end of the guide ring is embedded on the diaphragm, the other end of the guide ring is abutted against the disc piece, the guide ring is provided with a hole, and the hole is communicated with the valve port; at least one annular convex rib is arranged on the valve port, and the convex direction of the annular convex rib faces one side of the diaphragm; the electromagnetic driving device is arranged above the disc piece and comprises a movable iron core which is arranged in a sliding manner, and one end of the movable iron core penetrates through the disc piece and is connected with the pilot ring.

The utility model is further provided with: the electromagnetic driving device further comprises an electromagnetic coil, a static iron core and a control circuit board, wherein the static iron core and the movable iron core are arranged in the middle of the electromagnetic coil, and the electromagnetic coil is electrically connected with the control circuit board.

The utility model is further provided with: a lining is arranged between the electromagnetic coil and the disc piece, the movable iron core penetrates through the lining, a boss is arranged on the movable iron core, and a reset spring is arranged between the boss and the lining in a butt joint mode.

The utility model is further provided with: the control circuit board is provided with an indicator lamp electrically connected with the control circuit board, the valve body is provided with a through hole, and the indicator lamp is arranged in the through hole.

The utility model is further provided with: quick connector assemblies are arranged in the inlet channel and the outlet channel, and each quick connector assembly comprises a sealing ring, a locking ring and a pressing cap.

The utility model is further provided with: the guide ring and the diaphragm are both made of rubber materials.

The utility model is further provided with: the valve body is provided with a wiring port, a fixing sleeve is arranged in the wiring port, an electric wire is arranged on the fixing sleeve in a penetrating mode, one end of the electric wire is electrically connected to the control circuit board, and the other end of the electric wire is connected with external equipment.

In summary, the utility model has the following beneficial effects:

compared with the prior art, the utility model has the advantages that the end part of the movable iron core is provided with the guide ring, one end of the guide ring is embedded with the diaphragm, and the other end of the guide ring is abutted against the disc, so that the movable iron core can drive the guide ring and the diaphragm to be abutted against the valve port when extending out, and the movable iron core can drive the guide ring to be abutted against the disc when retracting back, therefore, the action of the movable iron core is not directly collided with the internal structure of the valve body, but is collided through the guide ring and the diaphragm, and the guide ring and the diaphragm are made of rubber materials, so that the shock absorption effect is good, the impact force generated by collision is greatly reduced, and the electromagnetic valve is free from a gap caused by collision, so that the sealing performance of the electromagnetic valve is basically not influenced, and meanwhile, the working noise is greatly reduced.

The guide ring is provided with the hole which is communicated with the valve port, and the valve port is also provided with the annular convex rib, so that the advantage of the arrangement is that the diaphragm can be matched with the annular convex rib on the diaphragm when the diaphragm is abutted against the valve port to seal, the deformation of the diaphragm can be increased by the annular convex rib, so that the tightness is enhanced, meanwhile, a certain gap is reserved between the diaphragm and the plane of the valve port due to the fact that the diaphragm is abutted against the annular convex rib, at the moment, a medium in the valve port can enter the hole and the gap of the guide ring, pressure balance between the end faces is achieved, delay generated by adsorption is reduced when the diaphragm is separated from the valve port, and the reliability of high-frequency opening and closing of the electromagnetic valve is enhanced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic cross-sectional view of the internal structure of the present embodiment;

FIG. 3 is a schematic diagram of the explosion structure of the present embodiment;

fig. 4 is an enlarged schematic view of the structure of fig. 2A.

Reference numerals: 1. a valve body; 2. a channel is entered; 3. a channel is formed; 4. a valve chamber; 5. a valve port; 6. a disc member; 7. a guide ring; 701. a hole; 8. a membrane; 9. an electromagnetic driving device; 901. a movable iron core; 902. an electromagnetic coil; 903. a stationary core; 904. a control circuit board; 10. annular convex ribs; 11. a liner; 12. an indicator light; 13. a quick connector assembly; 1301. a seal ring; 1302. a locking ring; 1303. pressing the cap; 14. a wiring port; 1401. a fixed sleeve; 15. and a return spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a solenoid valve, as shown in fig. 1-3, including a valve body 1, an inlet channel 2 and an outlet channel 3, a valve chamber 4 is arranged in the valve body 1, a valve port 5 for communicating the inlet channel 2 with the outlet channel 3 is arranged in the valve chamber 4, referring to fig. 2, a disc member 6 is arranged in the valve body 1, the disc member 6 is arranged above the valve port 5, a diaphragm 8 is arranged between the disc member 6 and the valve port 5, a guiding ring 7 is arranged in the middle of the diaphragm 8, one end of the guiding ring 7 is embedded on the diaphragm 8, the other end is abutted on the disc member 6, meanwhile, referring to fig. 2 and 4, a hole 701 is arranged on the guiding ring 7, and the hole 701 is communicated with the valve port 5; the valve port 5 is provided with at least one annular convex rib 10, and the convex direction of the annular convex rib 10 faces one side of the membrane 8; through the structure, the annular convex rib 10 has larger pressure intensity, and the local deformation quantity of the diaphragm is increased, so that the sealing effect is better. And the diaphragm 8 is abutted on the annular convex rib, so that a certain gap is reserved between other areas of the diaphragm 8 and the plane of the valve port, and then the diaphragm 8 is matched with the hole 701 on the guide ring 7, after the diaphragm 8 seals the valve port 5, a medium in the valve port 5 can enter the hole 701 and the gap, so that the pressures between the diaphragm and two end surfaces of the valve port are balanced, the diaphragm 8 and the valve port 5 can be quickly separated, the adsorption force and the action hysteresis problem caused by the adsorption force during separation are reduced, and the high-frequency opening and closing reliability of the electromagnetic valve is higher.

Further, an electromagnetic driving device 9 is arranged above the disc member 6, a movable iron core 901 is arranged in the electromagnetic driving device 9 in a sliding manner, and one end of the movable iron core 901 penetrates through the disc member 6 and is connected with the pilot ring 7. Through the structure, when the movable iron core 901 is driven by the electromagnetic driving device 9, the guide ring 7 and the diaphragm 8 are driven to synchronously move, and when the movable iron core moves downwards, the valve port 5 is in abutting fit with the diaphragm 8, and at the moment, the inlet channel 2 and the outlet channel 3 are in a closed state; when moving upwards, the valve port is separated from the diaphragm 8, the inlet channel 2 and the outlet channel are communicated, meanwhile, the pilot ring 7 and the diaphragm 8 of the embodiment are made of rubber materials, when moving downwards, the diaphragm is in contact with the valve port, the pilot piece 7 is in contact with the disc piece 6 when moving upwards, and the rubber materials have good damping effect, so that the collision impact force generated by the movement of the movable iron core of the electromagnetic valve is greatly reduced in the opening and closing process, gaps are not easily generated between all parts due to collision, the sealing performance is guaranteed, and the working noise of the electromagnetic valve is also reduced through the structure.

Further, referring to fig. 2, the electromagnetic driving device 9 further includes an electromagnetic coil 902, a static iron core 903, and a control circuit board 904, wherein the static iron core 903 and the movable iron core 901 are disposed in the middle of the electromagnetic coil 902, and the electromagnetic coil 902 is electrically connected to the control circuit board 904; meanwhile, a wiring port 14 is formed in the valve body 1, a fixing sleeve 1401 is arranged in the wiring port 14, an electric wire is arranged on the fixing sleeve 1401 in a penetrating mode, one end of the electric wire is electrically connected to the control circuit board, and the other end of the electric wire is connected with external equipment. When the electromagnetic coil 902 is energized, a suction force is generated between the stationary core 903 and the movable core 901, and the movable core 901 moves toward the stationary core 903, so that the diaphragm 8 is separated from the valve port 5. The fixing sleeve 1401 is used for closing the wiring port 14 and preventing foreign matters from entering the valve body 1.

Further, a lining 11 is arranged between the electromagnetic coil 902 and the disc member 6, the movable iron core 901 penetrates through the lining 11, a boss is arranged on the movable iron core 901, a reset spring 15 is arranged between the boss and the lining 11 in an abutting mode, through the arrangement of the lining 11 and the reset spring 15, when the electromagnetic coil 902 is powered off, the movable iron core 901 is reset under the action of the reset spring 15, and the diaphragm 8 is in abutting sealing with the valve port 5.

Further, an indicator lamp 12 electrically connected with the control circuit board 904 is arranged on the control circuit board, a through hole is formed in the valve body 1, the indicator lamp 12 is arranged in the through hole, the indicator lamp 12 is used for prompting the working state of the valve body, when the electromagnetic coil is in a power-on state, namely, the inlet channel and the outlet channel are conducted, the indicator lamp is on, and when the electromagnetic coil is off, namely, the inlet channel and the outlet channel are closed, the indicator lamp is not on.

Further, all be provided with quick connector assembly 13 in advance passageway 2 and the play passageway 3, can realize the quick butt joint with external pipeline through quick connector assembly 13, convenient to use. Specifically, the quick connector assembly 13 includes a sealing ring 1301, a locking ring 1302, and a pressing cap 1303, where an inner end of the sealing ring 1301 is made of a rubber material for ensuring sealing, the locking ring 1302 is made of an elastic metal material and is provided with an anti-withdrawal piece for clamping a pipe body, and the pressing cap 1303 is made of a plastic material, and when the pressing cap 1303 is pushed inwards, the anti-withdrawal piece is pushed open, so that the pipe body can be pulled out smoothly.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides an electromagnetic valve, includes valve body (1), advances passageway (2) and play passageway (3), be provided with valve chamber (4) in valve body (1), be equipped with in valve chamber (4) with the valve port (5) of advancing passageway (2) and play passageway (3) intercommunication, its characterized in that: a disc piece (6) is arranged in the valve body (1), the disc piece (6) is arranged above the valve port (5), a membrane (8) is arranged between the disc piece (6) and the valve port (5), a guide ring (7) is arranged in the middle of the membrane (8), one end of the guide ring (7) is embedded on the membrane (8), the other end of the guide ring is abutted on the disc piece (6), a hole (701) is formed in the guide ring (7), and the hole (701) is communicated with the valve port (5); at least one annular convex rib (10) is arranged on the valve port (5), and the convex direction of the annular convex rib (10) faces one side of the diaphragm (8); an electromagnetic driving device (9) is arranged above the disc piece (6), a movable iron core (901) which is arranged in a sliding mode is arranged in the electromagnetic driving device (9), and one end of the movable iron core (901) penetrates through the disc piece (6) and is connected with a pilot ring (7).

2. A solenoid valve according to claim 1 wherein: the electromagnetic driving device (9) further comprises an electromagnetic coil (902), a static iron core (903) and a control circuit board (904), wherein the static iron core (903) and the movable iron core (901) are arranged in the middle of the electromagnetic coil (902), and the electromagnetic coil (902) is electrically connected with the control circuit board (904).

3. A solenoid valve according to claim 2 wherein: a lining (11) is arranged between the electromagnetic coil (902) and the disc piece (6), the movable iron core (901) penetrates through the lining (11), a boss is arranged on the movable iron core (901), and a reset spring (15) is arranged between the boss and the lining in a butt joint mode.

4. A solenoid valve according to claim 2 wherein: the control circuit board (904) is provided with an indicator lamp (12) which is electrically connected with the control circuit board, the valve body (1) is provided with a through hole, and the indicator lamp (12) is arranged in the through hole.

5. A solenoid valve according to claim 1 wherein: quick connector assemblies (13) are arranged in the inlet channel (2) and the outlet channel (3), and the quick connector assemblies (13) comprise sealing rings (1301), locking rings (1302) and pressing caps (1303).

6. A solenoid valve according to claim 1 wherein: the pilot ring (7) and the diaphragm (8) are made of rubber materials.

7. A solenoid valve according to claim 2 wherein: the valve body (1) is provided with a wiring port (14), a fixing sleeve (1401) is arranged in the wiring port (14), an electric wire is arranged on the fixing sleeve (1401) in a penetrating mode, one end of the electric wire is electrically connected to the control circuit board, and the other end of the electric wire is connected with external equipment.