Electromagnetic valve for industrial instruments

Abstract

This utility model belongs to the field of solenoid valves, specifically a solenoid valve for industrial instruments. It includes a main body, with a linkage control component on one side. The linkage control component includes a protective shell, an electromagnetic coil fixedly installed inside the shell, and a threaded sleeve passing through and fixedly installed on the shell. The threaded sleeve has a threaded groove, and a threaded shaft is threadedly connected to it. A knob is fixedly installed on the top of the threaded shaft. An iron core is movably installed inside the threaded sleeve, a connecting rod is fixedly installed on the bottom of the iron core, and a piston is fixedly installed on the bottom of the connecting rod. Through the linkage structure between the threaded shaft and the piston, rotating the knob can precisely adjust the insertion depth of the piston in the control groove, thereby continuously changing the fluid flow area. This solves the problem of insufficient flow regulation accuracy in existing technologies and meets the measurement accuracy requirements of industrial instruments.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valves, specifically a solenoid valve for industrial instruments. Background Technology

[0002] A solenoid valve is an automated component that controls the opening and closing of a fluid passage or the flow rate through electromagnetic force. It is widely used in industrial control systems, hydraulic systems, pneumatic systems and other fields.

[0003] Chinese Patent No. CN202421208284.9 discloses an electromagnetic valve for industrial instruments, including a liquid guide tube. A valve body is fixedly inserted into the outer wall of the liquid guide tube. A flow guide cavity is provided inside the valve body and communicates with the inner side of the liquid guide tube. A baffle plate is fixedly provided on the inner wall of the liquid guide tube, with the upper end of the baffle plate located inside the flow guide cavity. A rectangular cylinder is fixedly provided in the middle of the top surface of the valve body and communicates with the flow guide cavity. A protective cylinder is fixedly provided at the top of the rectangular cylinder and communicates with the inner side of the rectangular cylinder. The protective cylinder includes a cylinder wall, the lower end of which is fixedly connected to the rectangular cylinder. A fixed iron core is fixedly provided on the inner wall of the upper end of the cylinder wall. A coil is fixedly provided on the inner side of the cylinder wall. A lifting plate is movably inserted into the inner side of the rectangular cylinder, and a moving iron core is fixedly provided on the top surface of the lifting plate, with the moving iron core located below the fixed iron core.

[0004] As can be seen from the above, the solenoid valve can be kept running manually in the event of a power outage or power supply failure, and the number of gear rotations can be controlled. However, this invention still has the following shortcomings:

[0005] Firstly, the flow regulation relies on a valve core with a fixed orifice diameter, which cannot dynamically adjust the flow according to the real-time needs of industrial instruments, resulting in insufficient accuracy.

[0006] Secondly, the lack of a pressure monitoring mechanism makes it difficult to ensure flow stability when system pressure fluctuates, which can easily lead to measurement errors.

[0007] Therefore, a solenoid valve for industrial instruments is proposed to address the above problems. Utility Model Content

[0008] To overcome the shortcomings of existing technologies and the problem of inaccurate flow regulation, this utility model proposes a solenoid valve for industrial instruments.

[0009] The technical solution adopted by this utility model to solve its technical problem is as follows: The electromagnetic valve for industrial instruments of this utility model includes a main body, and a linkage control component is provided on one side of the main body; the linkage control component includes a protective shell, an electromagnetic coil is fixedly installed in the inner cavity of the protective shell, a threaded sleeve is fixedly installed through the protective shell, the threaded sleeve has a threaded groove, and a threaded shaft is threadedly connected through the threaded groove, a knob is fixedly installed on the top of the threaded shaft, an iron core is movably installed in the inner cavity of the threaded sleeve, a connecting rod is fixedly installed at the bottom of the iron core, and a piston is fixedly installed at the bottom of the connecting rod.

[0010] Preferably, the linkage control component further includes a valve seat, the valve seat having a control groove in its inner cavity, and a piston is engaged through the control groove.

[0011] Preferably, the linkage control component further includes a sealing ring, which is fixedly installed on the top of the valve seat, and a spring is fixedly installed on the bottom of the sealing ring, with the other end of the spring fixedly installed on the piston.

[0012] Preferably, the connecting rod is movably fitted with a sealing ring.

[0013] Preferably, the main body includes a valve body housing, and a pressure monitor is fixedly installed on the top of the valve body housing, the pressure monitor being connected to a pressure sensor.

[0014] Preferably, a protective shell is fixedly installed on the top of the valve body shell, and a valve seat is fixedly installed in the inner cavity of the valve body shell.

[0015] The advantages of this utility model are:

[0016] 1. This utility model, through the structural design of the flow regulation component and the linkage structure between the threaded shaft and the piston, allows for precise adjustment of the piston's insertion depth in the control groove by rotating the knob, thereby continuously changing the fluid flow area. This solves the problem of insufficient flow regulation accuracy in the prior art and meets the measurement accuracy requirements of industrial instruments.

[0017] 2. Through the structural design of the flow regulation component and the collaborative design of the pressure monitor and the electromagnetic coil, this utility model can monitor the system pressure in real time and adjust the current intensity of the electromagnetic coil, fine-tune the attraction of the iron core, and, in conjunction with the threaded adjustment structure, achieve stable flow control under pressure fluctuations, thereby improving the adaptability of the solenoid valve to complex working conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded view of the flow regulating component of this utility model;

[0022] Figure 4 This is a schematic diagram of the main structure of this utility model.

[0023] In the diagram: 1. Main body; 2. Linkage control component; 11. Valve body shell; 12. Pressure monitor; 13. Pressure sensor; 21. Protective shell; 22. Electromagnetic coil; 23. Threaded sleeve; 24. Threaded shaft; 25. Knob; 26. Iron core; 27. Sealing ring; 28. Valve seat; 29. ​​Spring; 31. Piston; 32. Connecting rod; 33. Control groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1-4 As shown, a solenoid valve for industrial instruments includes a main body 1, and a linkage control component 2 is provided on one side of the main body 1. The linkage control component 2 includes a protective shell 21, an electromagnetic coil 22 is fixedly installed in the inner cavity of the protective shell 21, a threaded sleeve 23 is fixedly installed through the protective shell 21, the threaded sleeve 23 has a threaded groove, and a threaded shaft 24 is threadedly connected through the threaded groove. A knob 25 is fixedly installed on the top of the threaded shaft 24, an iron core 26 is movably installed in the inner cavity of the threaded sleeve 23, a connecting rod 32 is fixedly installed on the bottom of the iron core 26, and a piston 31 is fixedly installed on the bottom of the connecting rod 32.

[0026] During operation, rotating the knob 25 causes the threaded shaft 24 to move up and down within the threaded sleeve 23 via threaded engagement. When the electromagnetic coil 22 is energized, it controls the movement of the iron core 26. As the threaded shaft 24 moves, it restricts the range of motion of the iron core 26, thereby limiting the movement of the iron core 26. In turn, the iron core 26 controls the piston 31 to slide within the control groove 33 via the connecting rod 32, achieving precise adjustment of the flow area.

[0027] Furthermore, the linkage control component 2 also includes a valve seat 28, the inner cavity of which is provided with a control groove 33, and a piston 31 is engaged through the control groove 33;

[0028] During operation, the control groove 33 and the piston 31 form a control interface for fluid flow. The insertion depth of the piston 31 determines the flow area, and the snap-fit ​​structure ensures the stability of fluid control.

[0029] Furthermore, the linkage control component 2 also includes a sealing ring 27, which is fixedly installed on the top of the valve seat 28. A spring 29 is fixedly installed on the bottom of the sealing ring 27, and the other end of the spring 29 is fixedly installed on the piston 31.

[0030] During operation, the sealing ring 27 prevents fluid from leaking from the top of the valve seat, and the spring 29 pushes the piston 31 to reset when the electromagnetic coil 22 is de-energized, thus closing the fluid passage and achieving a power-off seal.

[0031] Furthermore, a sealing ring 27 is movably installed through the connecting rod 32;

[0032] During operation, the connecting rod 32 slides within the sealing ring 27 to ensure the sealing when the piston 31 moves up and down, thus preventing fluid leakage.

[0033] Furthermore, the main body 1 includes a valve body housing 11, and a pressure monitor 12 is fixedly installed on the top of the valve body housing 11. The pressure monitor 12 is connected to the pressure sensor 13.

[0034] During operation, the pressure sensor 13 monitors the fluid pressure inside the valve body in real time and transmits the data to the pressure monitor 12. The pressure monitor 12 automatically adjusts the current intensity of the electromagnetic coil 22 according to the pressure fluctuation.

[0035] Furthermore, a protective shell 21 is fixedly installed on the top of the valve body housing 11, and a valve seat 28 is fixedly installed in the inner cavity of the valve body housing 11.

[0036] During operation, the protective housing 21 provides protection for the electromagnetic coil 22 and the regulating mechanism, and the valve seat 28 is fixed inside the valve body housing 11 to ensure the stability of the fluid control components.

[0037] Working principle: When the knob 25 is rotated, the threaded shaft 24 moves up and down within the threaded sleeve 23 through threaded engagement. Since the bottom end of the threaded shaft 24 contacts the iron core 26, its displacement restricts the range of motion of the iron core 26. This, in turn, drives the piston 31 to slide up and down within the control groove 33 via the connecting rod 32. When the knob 25 is rotated clockwise, the threaded shaft 24 moves downward, pushing the iron core 26 and piston 31 deeper into the control groove 33, reducing the fluid flow area and decreasing the flow rate. When rotated counterclockwise, the piston 31 moves upward, increasing the flow area and increasing the flow rate. The control groove 33 inside the valve seat 28 in the linkage control assembly 2 engages with the piston 31, forming a control interface for fluid flow. The sealing ring 27 is fixed to the top of the valve seat 28, and the connecting rod 32 passes through the sealing ring 27 to ensure that fluid does not leak from the top of the valve seat. The spring 29 is installed between the sealing ring 27 and the valve seat 28. When the electromagnetic coil 2... 2. When power is off, spring 29 pushes piston 31 to reset, closing the fluid passage and achieving power-off sealing. Pressure monitor 12 and pressure sensor 13 are installed on the top of valve body shell 11 of main body 1. Pressure sensor 13 monitors the fluid pressure inside the valve body in real time and transmits the data to pressure monitor 12. When the system pressure fluctuates, pressure monitor 12 automatically adjusts the current intensity of electromagnetic coil 22, changes the magnetic field intensity, and fine-tunes the attraction of iron core 26, thereby dynamically adjusting the position of piston 31 to compensate for the influence of pressure changes on flow rate and ensure stable flow rate. When electromagnetic coil 22 is energized, it generates a magnetic field that attracts iron core 26 to move upward, driving piston 31 to disengage from control groove 33 through connecting rod 32, and fluid conduction is achieved. When power is off, spring 29 pushes piston 31 to reset and tightly engages in control groove 33. When power is on, electromagnetic force overcomes the elastic force of spring 29 and attracts iron core 26 to move upward.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electromagnetic valve for industrial instruments comprising a body (1), characterized in that: A linkage control component (2) is provided on one side of the main body (1); the linkage control component (2) includes a protective shell (21), an electromagnetic coil (22) is fixedly installed in the inner cavity of the protective shell (21), a threaded sleeve (23) is fixedly installed through the protective shell (21), the threaded sleeve (23) has a threaded groove, and a threaded shaft (24) is threadedly connected through the threaded groove, a knob (25) is fixedly installed on the top of the threaded shaft (24), an iron core (26) is movably installed in the inner cavity of the threaded sleeve (23), a connecting rod (32) is fixedly installed on the bottom of the iron core (26), and a piston (31) is fixedly installed on the bottom of the connecting rod (32).

2. An electromagnetic valve for industrial instruments according to claim 1, characterized in that: The linkage control component (2) also includes a valve seat (28), the valve seat (28) has a control groove (33) in its inner cavity, and a piston (31) is engaged through the control groove (33).

3. An electromagnetic valve for industrial instruments according to claim 2, characterized in that: The linkage control component (2) also includes a sealing ring (27), which is fixedly installed on the top of the valve seat (28). A spring (29) is fixedly installed on the bottom of the sealing ring (27), and the other end of the spring (29) is fixedly installed on the piston (31).

4. An electromagnetic valve for industrial instruments according to claim 2, characterized in that: The connecting rod (32) is movably fitted with a sealing ring (27).

5. The electromagnetic valve for an industrial instrument according to claim 1, wherein: The main body (1) includes a valve body housing (11), and a pressure monitor (12) is fixedly installed on the top of the valve body housing (11). The pressure monitor (12) is connected to a pressure sensor (13).

6. An electromagnetic valve for industrial instruments according to claim 5, characterized in that: A protective shell (21) is fixedly installed on the top of the valve body shell (11), and a valve seat (28) is fixedly installed in the inner cavity of the valve body shell (11).

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