Electromagnetic valve with explosion-proof function

Abstract

The utility model discloses an electromagnetic valve with an explosion-proof function, which comprises a valve body, an air inlet pipe is arranged on one side of the valve body, an air outlet pipe is arranged on one side, far away from the air inlet pipe, of the valve body, a pressure measuring pipe is arranged in the middle of the upper portion of the air inlet pipe, a fixing plate is arranged in the middle of the interior of the pressure measuring pipe, and a connecting rod is inserted in the middle of the fixing plate. The side, away from the air inlet pipe, of the connecting rod is fixedly connected with the pressing plate, the side, close to the air inlet pipe, of the connecting rod is fixedly connected with the second piston, a pressure sensor is arranged at the top in the pressure measuring pipe, and a buzzer is arranged on one side of the upper portion of the valve body. The electromagnetic valve is simple in structure, the pressure in the pipeline can be detected in time, the situation that danger occurs due to the fact that the pressure in the pipeline is too large is avoided, and the use safety of the electromagnetic valve is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve with an explosion-proof function. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulic or pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. For existing explosion-proof solenoid valves, when the valve body is closed, the conveying medium is still flowing and impacting the valve body. Due to the large instantaneous impact force, the internal pressure of the valve body increases, and the pressure generated in the pipeline is too high. If the alarm cannot be sounded to remind the staff to handle the pipeline, it is easy to cause the pipeline to explode, which is dangerous. For this reason, we propose a solenoid valve with explosion-proof function. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a solenoid valve with explosion-proof function. The utility model solves the problem of the existing explosion-proof solenoid valve, in which the conveying medium still flows and impacts the valve body when the valve body is closed, and the pressure inside the valve body increases due to the instantaneous impact force. The pressure generated in the pipeline is too high. If the alarm cannot be sounded to remind the staff to handle the pipeline, it is easy to cause the pipeline to explode, which is dangerous.

[0004] The utility model discloses an explosion-proof solenoid valve, comprising a valve body, an air inlet pipe is arranged on one side of the valve body, an air outlet pipe is arranged on the side of the valve body away from the air inlet pipe, a pressure measuring tube is arranged in the middle part above the air inlet pipe, a fixing plate is arranged in the middle part of the pressure measuring tube, a connecting rod is inserted in the middle part of the fixing plate, the connecting rod is fixedly connected to the pressure plate on the side away from the air inlet pipe, the connecting rod is fixedly connected to the second piston on the side close to the air inlet pipe, a pressure sensor is arranged on the top of the pressure measuring tube, and a buzzer is arranged on the side above the valve body.

[0005] In the above scheme, an electromagnet is provided at the upper end of the valve body, an iron core is provided in the middle of the electromagnet, the lower part of the iron core is fixedly connected to the first piston, and a sealing block is provided under the first piston.

[0006] In the above solution, the upper part of the iron core is fixedly connected to the inner wall of the valve body through the first spring.

[0007] In the above solution, the connecting rod is located between the fixed plate and the second piston and is sleeved with a second spring.

[0008] In the above solution, a control box is provided on one side above the valve body.

[0009] In the above solution, a mounting plate is provided below the valve body, and four mounting holes arranged in a matrix are provided on the outer side of the mounting plate.

[0010] The advantages and beneficial effects of the utility model are as follows: the utility model provides a solenoid valve with explosion-proof function. After the valve is closed, the pressure inside the intake pipe increases. Under the action of the air pressure, the second piston moves up, and the pressure plate squeezes the pressure sensor through the transmission of the connecting rod. When the pressure on the pressure sensor reaches the set value, the buzzer sounds an alarm, thereby reminding the staff to handle the solenoid valve in time. This solenoid valve has a simple structure and is easy to operate. It can detect the pressure inside the pipeline in time, avoiding the dangerous situation caused by excessive pressure inside the pipeline, and effectively improving the safety of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 This is a schematic structural diagram of part A of the utility model.

[0015] In the figure: 1, valve body 2, electromagnet 3, iron core 4, first spring

[0016] 5. First piston 6. Sealing block 7. Inlet pipe 8. Outlet pipe

[0017] 9. Pressure measuring tube 10. Fixed plate 11. Connecting rod 12. Pressing plate

[0018] 13. Second piston 14. Pressure sensor 15. Second spring 16. Control box

[0019] 17. Buzzer 18. Mounting plate 19. Mounting hole. DETAILED DESCRIPTION

[0020] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] like Figure 1-3 As shown, the utility model is a solenoid valve with explosion-proof function, including a valve body 1, one side of the valve body 1 is provided with an air inlet pipe 7, the side of the valve body 1 away from the air inlet pipe 7 is provided with an air outlet pipe 8, a pressure measuring tube 9 is provided in the middle of the upper part of the air inlet pipe 7, a fixing plate 10 is provided in the middle of the pressure measuring tube 9, a connecting rod 11 is inserted in the middle of the fixing plate 10, the connecting rod 11 and the fixing plate 10 are movably connected, the side of the connecting rod 11 away from the air inlet pipe 7 is fixedly connected to a pressing plate 12, the side of the connecting rod 11 close to the air inlet pipe 7 is fixedly connected to a second piston 13, a pressure sensor 14 is provided in the top of the pressure measuring tube 9, and a buzzer 17 is provided on the upper side of the valve body 1. After the valve is closed, the internal pressure of the air inlet pipe 7 increases. Under the action of air pressure, the second piston 13 moves up, and the pressing plate 12 squeezes the pressure sensor 14 through the transmission of the connecting rod 11. When the pressure on the pressure sensor 14 reaches a set value, the buzzer 17 sends an alarm, thereby reminding the staff to deal with the solenoid valve in time.

[0022] An electromagnet 2 is provided at the upper end of the valve body 1, and an iron core 3 is provided at the middle of the electromagnet 2 of the valve body 1. The iron core 3 is fixedly connected to the first piston 5 below, and a sealing block 6 is provided below the first piston 5. When the electromagnet 2 is working, it can adsorb the iron core 3 so that the iron core 3 can move inside the valve body 1. By transmitting the iron core 3, the first piston 5 and the sealing block 6 also move accordingly. By adjusting the position of the sealing block 6, the air inlet pipe 7 and the air outlet pipe 8 on both sides of the solenoid valve can be connected to or closed.

[0023] The top of the iron core 3 is fixedly connected to the inner wall of the valve body 1 through the first spring 4. When the electromagnet 2 stops working, the first piston 5 and the sealing block 6 can be automatically reset under the action of the elastic force of the first spring 4.

[0024] The connecting rod 11 is located between the fixing plate 10 and the second piston 13 and is sleeved with a second spring 15 .

[0025] A control box 16 is disposed on one side above the valve body 1 . A microprocessor is disposed inside the control box 16 . The control box 16 can control the working state of the solenoid valve.

[0026] A mounting plate 18 is disposed below the valve body 1 , and four mounting holes 19 arranged in a matrix are disposed on the outer side of the mounting plate 18 , through which the solenoid valve can be fixedly installed.

[0027] Specifically, in the utility model, after the valve is closed, the internal pressure of the air inlet pipe 7 increases, and under the action of air pressure, the second piston 13 moves upward, and the pressure plate 12 squeezes the pressure sensor 14 through the transmission of the connecting rod 11. When the pressure on the pressure sensor 14 reaches the set value, the buzzer 17 sounds an alarm, thereby reminding the staff to deal with the solenoid valve in time. When the electromagnet 2 is working, it can adsorb the iron core 3 so that the iron core 3 can move inside the valve body 1. By transmitting the iron core 3, the first piston 5 and the sealing block 6 also move accordingly. By adjusting the position of the sealing block 6, the air inlet pipe 7 and the air outlet pipe 8 on both sides of the solenoid valve can be connected or closed to each other.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solenoid valve with explosion-proof function, comprising a valve body (1), characterized in that: An air inlet pipe (7) is provided on one side of the valve body (1), an air outlet pipe (8) is provided on the side of the valve body (1) away from the air inlet pipe (7), a pressure measuring tube (9) is provided in the middle of the upper part of the air inlet pipe (7), a fixing plate (10) is provided in the middle of the pressure measuring tube (9), a connecting rod (11) is inserted in the middle of the fixing plate (10), the connecting rod (11) is fixedly connected to a pressure plate (12) on the side away from the air inlet pipe (7), and the connecting rod (11) is fixedly connected to a second piston (13) on the side close to the air inlet pipe (7), a pressure sensor (14) is provided at the top of the pressure measuring tube (9), and a buzzer (17) is provided on the upper side of the valve body (1).

2. The solenoid valve with explosion-proof function according to claim 1, characterized in that: An electromagnet (2) is provided at the upper end of the valve body (1), an iron core (3) is provided in the middle of the electromagnet (2) of the valve body (1), the lower part of the iron core (3) is fixedly connected to the first piston (5), and a sealing block (6) is provided below the first piston (5).

3. The solenoid valve with explosion-proof function according to claim 2, characterized in that: The upper portion of the iron core (3) is fixedly connected to the inner wall of the valve body (1) via a first spring (4).

4. The solenoid valve with explosion-proof function according to claim 1, characterized in that: The connecting rod (11) is located between the fixed plate (10) and the second piston (13) and is sleeved with a second spring (15).

5. The solenoid valve with explosion-proof function according to claim 1, characterized in that: A control box (16) is provided on one side above the valve body (1).

6. The solenoid valve with explosion-proof function according to claim 1, characterized in that: A mounting plate (18) is provided below the valve body (1), and four mounting holes (19) arranged in a matrix are provided on the outer side of the mounting plate (18).

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