Medium separation electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to a medium separation electromagnetic valve which comprises an electromagnetic valve body, the feeding end of the electromagnetic valve body is communicated with a feeding pipe, the discharging end of the electromagnetic valve body is fixedly provided with a discharging pipe, the discharging pipe is communicated with the interior of the electromagnetic valve body, and the top of the electromagnetic valve body is connected with a sealing cover in a clamped mode. A control box is arranged on the sealing cover, a pressure detector is arranged in the control box, and the end, away from the control box, of the pressure detector penetrates through the sealing cover and extends into the electromagnetic valve body. According to the device, through the arranged backflow prevention assembly, after use is completed, an electric telescopic rod is started, the electric telescopic rod drives a closing plate to slide in the electromagnetic valve body, a sealing strip can seal a discharging pipe, and a medium in the discharging pipe is prevented from flowing back into the electromagnetic valve body; the electromagnetic valve body and the connecting pipe can be separated through the sealing plate, and the influence of medium backflow on the whole pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a medium separation electromagnetic valve. Background Art

[0002] The medium separation solenoid valve is a specially designed solenoid valve. Its main feature is that it can effectively separate the electromagnetic part of the solenoid valve from the medium part. This design can prevent the medium (usually liquid or gas) from directly contacting the electromagnetic part, thereby avoiding possible corrosion, contamination or other damage to the electromagnetic part caused by the medium;

[0003] However, when the current solenoid valve is in use, when the internal pressure is too high, backflow may occur. The backflow may cause damage to the solenoid valve, resulting in loss of its normal function, making the valve unable to control the flow of the medium normally. The backflow of the medium may cause abnormal pressure and flow in the entire pipeline, affecting the normal operation of the entire system. Utility Model Content

[0004] The purpose of the utility model is to provide a medium separation solenoid valve to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A medium separation solenoid valve comprises a solenoid valve body, a feed end of the solenoid valve body is connected with a feed pipe, a discharge end of the solenoid valve body is fixedly installed with a discharge pipe, and the discharge pipe is connected with the interior of the solenoid valve body, a sealing cover is clamped on the top of the solenoid valve body, a control box is arranged on the sealing cover, a pressure detector is arranged inside the control box, and an end of the pressure detector away from the control box passes through the sealing cover and extends into the solenoid valve body;

[0007] An anti-backflow component is also arranged inside the solenoid valve body.

[0008] Preferably, a connecting pipe is fixedly installed at the feed end of the solenoid valve body, one end of the feed pipe close to the connecting pipe is threadedly connected to the connecting pipe, and a filter screen is arranged on the feed end of the feed pipe.

[0009] Preferably: a driving box is fixedly mounted on the feed pipe, a driving motor is fixedly mounted inside the driving box, an output end of the driving motor is fixedly connected to a rotating rod through a coupling, and an end of the rotating rod away from the driving motor penetrates the surface of the feed pipe and extends into the feed pipe;

[0010] A ball valve is fixedly installed at the extended end of the rotating rod. The ball valve is rotatably connected to the feed pipe, and a shaft seal is arranged at the junction of the surface of the ball valve and the inner wall of the feed pipe.

[0011] Preferably, the backflow prevention assembly comprises a closing plate, the closing plate is slidably connected to the solenoid valve body, sealing strips are arranged on both sides of the closing plate, the two sealing strips are in contact with the inner wall of the solenoid valve body, and the thickness of the closing plate is the same as the diameter of the discharge port of the discharge pipe;

[0012] The backflow prevention assembly also includes an electric telescopic rod, a fixing cylinder is fixedly installed on one end of the solenoid valve body away from the connecting pipe, the electric telescopic rod is fixedly installed in the fixing cylinder, and the output end of the electric telescopic rod passes through the solenoid valve body and is fixed to the closing plate in the solenoid valve body.

[0013] Preferably: the anti-backflow component also includes a sealing plate, a feed port connected to the connecting pipe is opened on the inner wall of the solenoid valve body, the sealing plate is arranged on the feed port, and the diameter of the sealing plate is larger than the aperture of the feed port, and a rotating shaft is also arranged on the inner wall of the solenoid valve body, the sealing plate is rotatably connected to the inner wall of the solenoid valve body through the rotating shaft, and a clockwork spring is arranged in the rotating shaft.

[0014] Preferably: fixing bolts are arranged on the four corners of the sealing cover, and the sealing cover is fixed to the solenoid valve body through a plurality of fixing bolts;

[0015] The connecting pipe and the discharging pipe are both provided with sealing rings on one side close to the electromagnetic valve body.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides an anti-backflow component. After use, by starting the electric telescopic rod, the electric telescopic rod drives the closing plate to slide in the solenoid valve body, so that the sealing strip can close the discharge pipe to prevent the medium in the discharge pipe from flowing back into the solenoid valve body. At the same time, through the provided sealing plate, after use, the solenoid valve body and the connecting pipe can be separated by the sealing plate to close the solenoid valve body, so that the remaining medium in the solenoid valve body can only flow to the discharge pipe in one direction, thereby preventing the backflow of the medium from affecting the entire pipeline.

[0018] 2. The pressure detector provided in the utility model can monitor the pressure in the solenoid valve body by starting the pressure detector during use to avoid abnormalities.

[0019] 3. The utility model can filter impurities in the medium when in use by means of a filter screen arranged at the front end of the feed pipe, thereby preventing the impurities from causing blockage or damage to the solenoid valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first perspective of the present utility model;

[0021] Figure 2 It is a schematic diagram of the second viewing angle of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the drive box in the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the solenoid valve body in the utility model;

[0024] Figure 5 It is a partial structural schematic diagram of the backflow prevention component in the utility model.

[0025] In the figure: 1. solenoid valve body; 2. connecting pipe; 3. feed pipe; 4. drive box; 41. drive motor; 42. rotating rod; 43. ball valve; 5. filter screen; 6. sealing cover; 7. control box; 8. pressure detector; 9. discharge pipe; 10. fixing bolt; 11. fixing cylinder; 12. sealing plate; 13. closing plate; 14. electric telescopic rod; 15. sealing strip; 16. sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] For example, see Figure 1-5A medium separation solenoid valve comprises a solenoid valve body 1, a feed end of the solenoid valve body 1 is connected with a feed pipe 3, a discharge end of the solenoid valve body 1 is fixedly installed with a discharge pipe 9, and the discharge pipe 9 is connected with the interior of the solenoid valve body 1, a sealing cover 6 is clamped on the top of the solenoid valve body 1, a control box 7 is arranged on the sealing cover 6, a pressure detector 8 is arranged inside the control box 7, an end of the pressure detector 8 away from the control box 7 passes through the sealing cover 6 and extends into the solenoid valve body 1, an anti-backflow component is also arranged inside the solenoid valve body 1, a connecting pipe 2 is fixedly installed on the feed end of the solenoid valve body 1, an end of the feed pipe 3 close to the connecting pipe 2 is threadedly connected to the connecting pipe 2, and a through hole is arranged on the feed end of the feed pipe 3 The filter screen 5 and the feed pipe 3 are also fixedly mounted with a drive box 4, a drive motor 41 is fixedly mounted inside the drive box 4, the output end of the drive motor 41 is fixedly connected with a rotating rod 42 through a coupling, one end of the rotating rod 42 away from the drive motor 41 penetrates the surface of the feed pipe 3 and extends into the feed pipe 3, a ball valve 43 is fixedly mounted on the extended end of the rotating rod 42, the ball valve 43 is rotatably connected to the feed pipe 3, and a shaft seal is provided at the junction of the surface of the ball valve 43 and the inner wall of the feed pipe 3, fixing bolts 10 are provided on the four corners of the sealing cover 6, the sealing cover 6 is fixed to the solenoid valve body 1 by a plurality of fixing bolts 10, and a sealing ring 16 is provided on the side of the connecting pipe 2 and the discharge pipe 9 close to the solenoid valve body 1;

[0028] When using the device, first install the feed pipe 3 and the connecting pipe 2, start the drive motor 41 in the drive box 4, so that the drive motor 41 drives the rotating rod 42 and the ball valve 43 to rotate, so that the opening on the ball valve 43 rotates to communicate with the feed pipe 3, and then the feed pipe 3 is connected with the connecting pipe 2, and the medium flows into the solenoid valve body 1 through the feed pipe 3 and the connecting pipe 2;

[0029] In the initial state, the anti-backflow component closes the solenoid valve body 1 and the discharge pipe 9. When the medium enters the solenoid valve body 1 through the connecting pipe 2, the anti-backflow component is closed to allow the medium to enter the solenoid valve body 1 and be discharged through the discharge pipe 9. When the use is completed, the anti-backflow component is started again to close the discharge pipe 9 to prevent the medium from flowing back from the discharge pipe 9.

[0030] By providing the sealing ring 16 on the connecting pipe 2 and the discharging pipe 9, the tightness of the connection between the connecting pipe 2 and the discharging pipe 9 and the electromagnetic valve body 1 can be increased to avoid leakage during use;

[0031] When in use, the pressure detector 8 is started at the same time, and the pressure in the solenoid valve body 1 is detected by the pressure detector 8 to prevent the solenoid valve body 1 from being damaged due to excessive pressure. At the same time, the sealing cover 6 and the fixing bolt 10 are provided, and the sealing cover 6 can be removed from the solenoid valve body 1 by removing the fixing bolt 10, so as to facilitate cleaning of the inside of the solenoid valve body 1;

[0032] By means of the filter screen 5 arranged at the front end of the feed pipe 3 , impurities in the medium can be filtered during use to prevent the impurities from causing blockage or damage to the solenoid valve body 1 .

[0033] For example 2, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The backflow prevention component includes a closing plate 13, which is slidably connected to the solenoid valve body 1. Sealing strips 15 are arranged on both sides of the closing plate 13. The two sealing strips 15 are in contact with the inner wall of the solenoid valve body 1. The thickness of the closing plate 13 is the same as the diameter of the discharge port of the discharge pipe 9. The backflow prevention component also includes an electric telescopic rod 14. A fixed cylinder 11 is fixedly installed on the end of the solenoid valve body 1 away from the connecting pipe 2. The electric telescopic rod 14 is fixedly installed in the fixed cylinder 11. The output end of the electric telescopic rod 14 passes through the solenoid valve body 1 and is fixed to the closing plate 13 in the solenoid valve body 1. The backflow prevention component also includes a sealing plate 12. A feed port connected to the connecting pipe 2 is provided on the inner wall of the solenoid valve body 1. The sealing plate 12 is arranged on the feed port, and the diameter of the sealing plate 12 is larger than the aperture of the feed port. A rotating shaft is also arranged on the inner wall of the solenoid valve body 1. The sealing plate 12 is rotatably connected to the inner wall of the solenoid valve body 1 through the rotating shaft, and a clockwork spring is arranged in the rotating shaft.

[0034] When in use, after the medium enters the solenoid valve body 1, the electric telescopic rod 14 is started, so that the electric telescopic rod 14 drives the closing plate 13 to move toward the direction of the fixed cylinder 11, so that the closing plate 13 no longer blocks the discharge pipe 9, and the medium can flow out through the discharge pipe 9. At the same time, when the medium enters the solenoid valve body 1 through the feed port on the solenoid valve body 1, the impact force of the medium will cause the sealing plate 12 to flip along the rotating shaft, so that the sealing plate 12 no longer blocks the feed port;

[0035] When the use is finished, the driving motor 41 is started again, so that the driving motor 41 drives the rotating rod 42 and the ball valve 43 to rotate, so that the ball valve 43 closes the feed pipe 3. At the same time, the sealing plate 12 on the solenoid valve body 1 is no longer affected by the medium, and resets under the action of the spring rebound force in the rotating shaft, closing the feed port, and starting the electric telescopic rod 14, so that the electric telescopic rod 14 drives the sealing plate 13 to slide in the solenoid valve body 1, so that the sealing strip 15 closes the discharge pipe 9.

[0036] By means of the sealing strips 15 arranged on both sides of the closing plate 13 , when in use, the closing plate 13 and the inner wall of the solenoid valve body 1 can always be kept sealed by the sealing strips 15 , thereby preventing the medium from leaking through the gap.

[0037] Working principle: When using the device, first install the feed pipe 3 and the connecting pipe 2, start the drive motor 41 in the drive box 4, so that the drive motor 41 drives the rotating rod 42 and the ball valve 43 to rotate, so that the feed pipe 3 is connected with the connecting pipe 2, and the medium flows into the solenoid valve body 1 through the feed pipe 3 and the connecting pipe 2. When the medium enters the solenoid valve body 1, start the electric telescopic rod 14, so that the electric telescopic rod 14 drives the closing plate 13 to move and no longer block the discharge pipe 9, and the medium flows out through the discharge pipe 9. At the same time, when the medium enters the solenoid valve body 1 through the feed port on the solenoid valve body 1, the impact force of the medium will cause the sealing plate 12 to flip along the rotating axis, so that the sealing plate 12 no longer blocks the feed port;

[0038] When in use, the pressure detector 8 is started at the same time, and the pressure in the solenoid valve body 1 is detected by the pressure detector 8 to avoid damage caused by excessive pressure in the solenoid valve body 1;

[0039] When use is completed, the drive motor 41 is started again, so that the drive motor 41 drives the rotating rod 42 and the ball valve 43 to rotate, so that the ball valve 43 closes the feed pipe 3. At the same time, the sealing plate 12 on the solenoid valve body 1 is no longer affected by the medium, and is reset under the action of the rebound force of the spring in the rotating shaft, so that the feed port is closed, and the electric telescopic rod 14 is started, so that the electric telescopic rod 14 drives the closing plate 13 to slide in the solenoid valve body 1, so that the sealing strip 15 closes the discharge pipe 9.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium separation solenoid valve, comprising a solenoid valve body (1), characterized in that: The feed end of the solenoid valve body (1) is connected to a feed pipe (3), the discharge end of the solenoid valve body (1) is fixedly mounted with a discharge pipe (9), and the discharge pipe (9) is connected to the interior of the solenoid valve body (1), the top of the solenoid valve body (1) is clamped with a sealing cover (6), a control box (7) is arranged on the sealing cover (6), a pressure detector (8) is arranged inside the control box (7), and the end of the pressure detector (8) away from the control box (7) passes through the sealing cover (6) and extends into the solenoid valve body (1); A backflow prevention component is also provided inside the solenoid valve body (1); The backflow prevention assembly comprises a closing plate (13), the closing plate (13) is slidably connected to the electromagnetic valve body (1), sealing strips (15) are arranged on both sides of the closing plate (13), the two sealing strips (15) are in contact with the inner wall of the electromagnetic valve body (1), and the thickness of the closing plate (13) is the same as the diameter of the discharge port of the discharge pipe (9); The backflow prevention assembly further comprises an electric telescopic rod (14); a fixing cylinder (11) is fixedly mounted on one end of the solenoid valve body (1) away from the connecting pipe (2); the electric telescopic rod (14) is fixedly mounted in the fixing cylinder (11); an output end of the electric telescopic rod (14) passes through the solenoid valve body (1) and is fixed to a closing plate (13) in the solenoid valve body (1).

2. A medium separation solenoid valve according to claim 1, characterized in that: A connecting pipe (2) is fixedly mounted on the feed end of the solenoid valve body (1); one end of the feed pipe (3) close to the connecting pipe (2) is threadedly connected to the connecting pipe (2); and a filter screen (5) is arranged on the feed end of the feed pipe (3).

3. A medium separation solenoid valve according to claim 1, characterized in that: A drive box (4) is also fixedly mounted on the feed pipe (3), a drive motor (41) is fixedly mounted inside the drive box (4), an output end of the drive motor (41) is fixedly connected to a rotating rod (42) via a coupling, and an end of the rotating rod (42) away from the drive motor (41) penetrates the surface of the feed pipe (3) and extends into the feed pipe (3); A ball valve (43) is fixedly mounted on the extended end of the rotating rod (42), the ball valve (43) is rotatably connected to the feed pipe (3), and a shaft seal is provided at the junction of the surface of the ball valve (43) and the inner wall of the feed pipe (3).

4. A medium separation solenoid valve according to claim 1, characterized in that: The backflow prevention component also includes a sealing plate (12). A feed port connected to the connecting pipe (2) is provided on the inner wall of the solenoid valve body (1). The sealing plate (12) is arranged on the feed port, and the diameter of the sealing plate (12) is larger than the aperture of the feed port. A rotating shaft is also provided on the inner wall of the solenoid valve body (1). The sealing plate (12) is rotatably connected to the inner wall of the solenoid valve body (1) via the rotating shaft, and a spring is provided in the rotating shaft.

5. The medium separation solenoid valve according to claim 2, characterized in that: The sealing cover (6) is provided with fixing bolts (10) at four corners, and the sealing cover (6) is fixed to the solenoid valve body (1) via a plurality of fixing bolts (10); A sealing ring (16) is provided on one side of the connecting pipe (2) and the discharge pipe (9) close to the solenoid valve body (1).

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