Automatic detection electromagnetic valve

Abstract

The invention discloses an automatic detection electromagnetic valve and relates to the field of electromagnetic control devices, the automatic detection electromagnetic valve comprises a valve seat and a valve body, the valve seat comprises a connecting pipe, a water inlet is formed in one end of the connecting pipe, a liquid outlet is formed in the other end of the connecting pipe, a mounting cavity is formed in the middle of the connecting pipe, and a baffle is fixedly connected to the middle of the mounting cavity; and first connecting rods are fixedly connected to the interiors of the water inlet and the liquid outlet. A wireless communication structure is arranged in the control module, the control module receives and processes all detection data, the detection result is compared with a preset standard parameter range, if all performance indexes of the electromagnetic valve are within a qualified range, it is judged that the electromagnetic valve is qualified, and if any index exceeds the range, it is judged that the electromagnetic valve is unqualified. And the control module sends an alarm signal to a management center, so that a worker can timely know the performance state of the electromagnetic valve and take corresponding measures.

Description

Technical Field

[0001] The invention relates to the field of electromagnetic control devices, and in particular to an automatic detection electromagnetic valve. Background Art

[0002] Solenoid valves are widely used in many fields such as industrial automation control and fluid transportation. The reliability of their performance is directly related to the normal operation of the entire system. Solenoid valves can be divided into many types according to their working principles and structures, such as direct-acting, pilot-operated, and step-by-step direct-acting. Different types of solenoid valves have different structures, but the basic principles are similar. Direct-acting solenoid valves have a simple structure and directly use electromagnetic force to push the valve core to move. They are suitable for low-pressure and small-flow situations. When the power is on, the electromagnetic force overcomes the spring force to lift the valve core and open the fluid passage. When the power is off, the spring force presses the valve core back and closes the fluid passage.

[0003] Published patent: A solenoid valve (publication number: CN118934978A), including a solenoid valve body, an inner cover of the solenoid valve body is provided with an annular flange at one end of the pole shoe of the solenoid valve body, a wire frame of the solenoid valve body and a pole shoe are both provided with an annular step surface, the wire frame matches the annular step surface of the pole shoe and is parallel to the annular flange, and the annular flange is clamped between the wire frame and the annular step surface of the pole shoe. In the present invention, by improving the structure of the wire frame, the pole shoe and the inner cover, a clamping space is formed between the annular step surface of the wire frame and the annular step surface of the pole shoe during assembly, and the annular flange provided on the inner cover is clamped and fixed, and a certain sealing effect is ensured while completing the assembly of the three. This structure does not need to eliminate the gap between the inner cover and the pole shoe by welding, that is, the steps of welding and grinding the weld protrusions after welding can be eliminated, thereby greatly improving the assembly efficiency of the solenoid valve.

[0004] The above patent has the following defects: there is no structure inside the above solenoid valve to detect the working status of the solenoid valve. When the solenoid valve is working, the various performances of the solenoid valve cannot be detected, and it is impossible to determine whether the solenoid valve is working normally, which makes it inconvenient to detect and maintain the solenoid valve. The solenoid valve can only be removed for detection when the solenoid valve is not working, which delays work efficiency and makes it difficult to meet the requirements of fast and accurate detection. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an automatic detection solenoid valve.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automatic detection solenoid valve, comprising a valve seat and a valve body, the valve seat comprising a connecting pipe, a water inlet is arranged inside one end of the connecting pipe, a liquid outlet is arranged inside the other end of the connecting pipe, an installation cavity is arranged in the middle of the connecting pipe, and the two ends of the installation cavity are respectively connected with the water inlet and the liquid outlet, a baffle is fixedly connected in the middle of the installation cavity, a first connecting rod is fixedly connected inside the water inlet and the liquid outlet, a first pressure sensor is fixedly connected at the lower end of the first connecting rod located inside the water inlet, a second pressure sensor is fixedly connected at the lower end of the first connecting rod located inside the liquid outlet, a second connecting rod is fixedly connected inside the liquid outlet, a flow sensor is fixedly connected at the lower end of the second connecting rod, a sealing cover is arranged in the middle of the connecting pipe, and the sealing cover is located at the upper end of the installation cavity, a pressure regulating device is arranged at one end of the connecting pipe, and the pressure regulating device is located outside the water inlet.

[0007] As a further description of the above technical solution: The valve body includes an upper valve cover and a lower valve cover, the upper valve cover is located at the lower end of the middle part of the connecting pipe, and the lower valve cover is located at the upper end of the middle part of the connecting pipe. The four corners of the upper valve cover are threadedly connected with bolts, and the lower ends of the bolts are threadedly connected to the inside of the four corners of the lower valve cover.

[0008] As a further description of the above technical solution: Both ends of the upper valve cover are provided with sealing gaskets, and the sealing gaskets at both ends of the upper valve cover are inserted into the lower valve cover, and both ends of the lower valve cover are fixedly connected with sealing gaskets, and the sealing gaskets at both ends of the lower valve cover are inserted into the upper valve cover.

[0009] As a further description of the above technical solution: An electromagnet is fixedly connected to the middle of the upper end of the upper valve cover, and a moving iron column is slidably connected to the middle of the upper valve cover, and the moving iron column is located directly below the electromagnet.

[0010] As a further description of the above technical solution: The lower end of the movable iron column passes through the sealing cover, and one end of the movable iron column passing through the sealing cover is fixedly connected with a sealing plate, the sealing plate is slidably connected inside the connecting pipe, and the sealing plate is located at the upper end of the mounting cavity and the baffle, and one side of the lower end of the sealing plate is fixedly connected with a third pressure sensor.

[0011] As a further description of the above technical solution: The lower end of the movable iron column is fixedly connected to a limiting disk, and the limiting disk is slidably connected to the inside of the upper valve cover. The upper surface of the limiting disk is fixedly connected to a spring, and the spring is sleeved on the middle part of the movable iron column.

[0012] As a further description of the above technical solution: A temperature sensor is arranged on one side of the upper end of the upper valve cover, a control module is arranged on the other side of the upper end of the upper valve cover, an electromagnetic coil detection module is arranged on the upper middle end of the upper valve cover, and the electromagnetic coil detection module includes a voltage, resistance detection structure and a current transformer.

[0013] As a further description of the above technical solution: Both ends of the connecting pipe are provided with connecting sleeves, and the connecting sleeves include a sleeve and a limiting ring. The limiting ring is fixedly connected to the inner surface of the sleeve, and the sleeve is rotatably connected to the outer surface of the connecting pipe. The limiting ring is rotatably connected to the inside of the connecting pipe, and the inner surface of the sleeve is provided with threads.

[0014] The present invention has the following beneficial effects: 1. In the present invention, the pressure of the incoming water is first detected by the first pressure sensor, the pressure of the outgoing water is detected by the second pressure sensor, the water pressure at the connection is detected by the third pressure sensor, and the pressure values ​​at different positions are detected by the first pressure sensor, the second pressure sensor and the third pressure sensor to judge the sealing and pressure loss of the solenoid valve. The temperature sensor is used to monitor the temperature change of the solenoid valve when it is working to prevent the solenoid valve from malfunctioning due to excessive temperature. The electromagnetic coil detection module is connected to the electromagnetic coil on the electromagnet and can detect the resistance value, inductance value and magnetic field strength of the electromagnetic coil after power is turned on. Electrical parameters such as the strength can be detected to comprehensively and automatically detect various performances of the solenoid valve, thereby improving the detection efficiency and accuracy.

[0015] 2. In the present invention, the control module has a built-in wireless communication structure. The control module receives and processes all test data and compares the test results with the preset standard parameter range. If all performance indicators of the solenoid valve are within the qualified range, the solenoid valve is judged to be qualified. If any indicator exceeds the range, it is judged to be unqualified, and the control module sends an alarm signal to the management center so that the staff can know the performance status of the solenoid valve in time and take corresponding measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 It is a cross-sectional three-dimensional structural diagram of the valve seat of the present invention; Figure 3 It is a cross-sectional three-dimensional structural diagram of the valve body of the present invention; Figure 4 It is a cross-sectional perspective view of the present invention; Figure 5 It is a cross-sectional three-dimensional structural diagram of the present invention.

[0017] Legend: 1. Valve seat; 11. Connecting pipe; 12. Water inlet; 13. Liquid outlet; 14. Installation cavity; 15. First connecting rod; 151. First pressure sensor; 152. Second pressure sensor; 16. Second connecting rod; 161. Flow sensor; 17. Baffle; 18. Sealing cover; 2. Valve body; 21. Upper valve cover; 22. Lower valve cover; 23. Sealing gasket; 24. Bolt; 25. Electromagnetic coil detection module; 26. Electromagnet; 261. Moving iron column; 262. Limiting plate; 263. Spring; 264. Sealing plate; 265. Third pressure sensor; 27. Temperature sensor; 28. Control module; 3. Pressure regulating device; 4. Connecting sleeve; 41. Sleeve; 42. Limiting ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Reference Figure 1-5The present invention provides an embodiment: an automatic detection solenoid valve, comprising a valve seat 1 and a valve body 2, the valve seat 1 comprising a connecting pipe 11, a water inlet 12 is arranged inside one end of the connecting pipe 11, a liquid outlet 13 is arranged inside the other end of the connecting pipe 11, a mounting cavity 14 is arranged in the middle of the connecting pipe 11, and the two ends of the mounting cavity 14 are respectively connected to the water inlet 12 and the liquid outlet 13, a baffle 17 is fixedly connected to the middle of the mounting cavity 14, and the water inlet 12 and the liquid outlet 13 are both fixedly connected to a first connecting rod 15, which is located at the water inlet 12 A first pressure sensor 151 is fixedly connected to the lower end of the internal first connecting rod 15, a second pressure sensor 152 is fixedly connected to the lower end of the first connecting rod 15 located inside the liquid outlet 13, a second connecting rod 16 is fixedly connected to the inside of the liquid outlet 13, a flow sensor 161 is fixedly connected to the lower end of the second connecting rod 16, a sealing cover 18 is provided in the middle of the connecting pipe 11, and the sealing cover 18 is located at the upper end of the installation cavity 14, a pressure regulating device 3 is provided at one end of the connecting pipe 11, and the pressure regulating device 3 is located outside the water inlet 12.

[0021] The valve body 2 includes an upper valve cover 21 and a lower valve cover 22. The upper valve cover 21 is located at the lower end of the middle part of the connecting pipe 11, and the lower valve cover 22 is located at the upper end of the middle part of the connecting pipe 11. The four corners of the upper valve cover 21 are threadedly connected with bolts 24, and the lower ends of the bolts 24 are threadedly connected to the inside of the four corners of the lower valve cover 22. Both ends of the upper valve cover 21 are provided with sealing gaskets 23, and the sealing gaskets 23 at both ends of the upper valve cover 21 are inserted into the lower valve cover 22. Both ends of the lower valve cover 22 are fixedly connected with the sealing gaskets 23, and The sealing gaskets 23 at both ends of the lower valve cover 22 are inserted into the upper valve cover 21, and the middle part of the upper end of the upper valve cover 21 is fixedly connected with an electromagnet 26, and the middle part of the upper valve cover 21 is slidably connected with a moving iron column 261, and the moving iron column 261 is located directly below the electromagnet 26, and the lower end of the moving iron column 261 passes through the sealing cover 18, and the end of the moving iron column 261 passing through the sealing cover 18 is fixedly connected with a sealing plate 264, and the sealing plate 264 is slidably connected to the inside of the connecting pipe 11, and the sealing plate 264 Located at the upper end of the mounting cavity 14 and the baffle 17, a third pressure sensor 265 is fixedly connected to one side of the lower end of the sealing plate 264, a limit plate 262 is fixedly connected to the middle and lower end of the movable iron column 261, and the limit plate 262 is slidably connected to the inside of the upper valve cover 21, a spring 263 is fixedly connected to the upper surface of the limit plate 262, and the spring 263 is sleeved on the middle part of the movable iron column 261, a temperature sensor 27 is arranged on one side of the upper end of the upper valve cover 21, and a control The control module 28 is provided with an electromagnetic coil detection module 25 at the upper end of the upper valve cover 21, and the electromagnetic coil detection module 25 includes a voltage, resistance detection structure and a current transformer. Connecting sleeves 4 are provided at both ends of the connecting pipe 11. The connecting sleeve 4 includes a sleeve 41 and a limit ring 42. The limit ring 42 is fixedly connected to the inner surface of the sleeve 41. The sleeve 41 is rotatably connected to the outer surface of the connecting pipe 11. The limit ring 42 is rotatably connected to the inside of the connecting pipe 11, and the inner surface of the sleeve 41 is provided with a thread.

[0022] Working principle: When in use, put the sleeve 41 on the pipeline, rotate the sleeve 41, and thread the sleeve 41 onto the pipeline, so as to connect the pipeline and the connecting pipe 11. The worker remotely sends commands to the communication module on the control module 28 through the control center, so as to control the solenoid valve to work. The detection results of the first pressure sensor 151, the second pressure sensor 152, the flow sensor 161, the third pressure sensor 265, the temperature sensor 27 and the electromagnetic coil detection module 25 are transmitted to the control center through the communication module. According to the set pressure, the liquid entering the liquid outlet 13 is adjusted by the pressure regulating device 3, so as to control the pressure of the liquid entering the liquid outlet 13. The first pressure sensor 151 monitors the pressure inside the water inlet 12 in real time, the third pressure sensor 265 monitors the pressure inside the installation cavity 14 in real time, and the second pressure sensor 152 monitors the pressure inside the water inlet 12 in real time. The pressure inside the liquid outlet 13, when the solenoid valve is in a closed state, if the detection structures of the third pressure sensor 265 and the second pressure sensor 152 are zero, and the pressure detected by the first pressure sensor 151 has no obvious change, it can be preliminarily judged that the sealing performance of the solenoid valve is good. If the pressure changes abnormally, there may be a poor seal. The electromagnetic coil inside the electromagnet 26 is energized, so that the electromagnet 26 absorbs the moving iron column 261, and the moving iron column 261 moves upward with the limit plate 262, so that the limit plate 262 squeezes the spring 263, and the lower end of the moving iron column 261 moves upward with the sealing plate 264, so that the liquid flows from the water inlet 12 through the installation cavity 14 to the inside of the liquid outlet 13. At this time, the flow sensor 161 starts to detect the liquid flow, and by comparing it with the preset standard flow range, it is judged whether the flow characteristic of the solenoid valve is normal. The temperature sensor 27 Monitor the temperature changes of the solenoid valve when it is working. If the temperature exceeds the normal range, it may indicate that the solenoid valve has a hidden fault, such as overheating of the solenoid coil. During the opening process of the solenoid valve, the solenoid coil detection module 25 detects the electrical parameters such as the resistance value, inductance value and magnetic field strength after power-on of the solenoid coil, and further evaluates the performance status of the solenoid coil. The control module 28 receives all the detection data and transmits the detection data to the control center. The control center compares the detection results with the preset standard parameter range. If all the performance indicators of the solenoid valve are within the qualified range, the solenoid valve is judged to be qualified. If any indicator exceeds the range, it is judged to be unqualified. At the same time, the staff is informed to know the performance status of the solenoid valve in time and take corresponding measures.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. 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. An automatic detection solenoid valve, comprising a valve seat (1) and a valve body (2), characterized in that: The valve seat (1) comprises a connecting pipe (11), one end of which is provided with a water inlet (12), the other end of which is provided with a liquid outlet (13), a mounting cavity (14) is provided in the middle of the connecting pipe (11), and the two ends of the mounting cavity (14) are respectively connected to the water inlet (12) and the liquid outlet (13), a baffle (17) is fixedly connected to the middle of the mounting cavity (14), the water inlet (12) and the liquid outlet (13) are both fixedly connected to a first connecting rod (15), and the lower end of the first connecting rod (15) located in the water inlet (12) is connected to the lower end of the first connecting rod (15) A first pressure sensor (151) is fixedly connected thereto; a second pressure sensor (152) is fixedly connected to the lower end of the first connecting rod (15) located inside the liquid outlet (13); a second connecting rod (16) is fixedly connected to the inside of the liquid outlet (13); a flow sensor (161) is fixedly connected to the lower end of the second connecting rod (16); a sealing cover (18) is provided at the middle of the connecting pipe (11), and the sealing cover (18) is located at the upper end of the installation cavity (14); a pressure regulating device (3) is provided at one end of the connecting pipe (11), and the pressure regulating device (3) is located outside the water inlet (12).

2. The automatic detection solenoid valve according to claim 1, characterized in that: The valve body (2) comprises an upper valve cover (21) and a lower valve cover (22), wherein the upper valve cover (21) is located at the lower end of the middle part of the connecting pipe (11), and the lower valve cover (22) is located at the upper end of the middle part of the connecting pipe (11), and the four corners of the upper valve cover (21) are all threadedly connected with bolts (24), and the lower ends of the bolts (24) are all threadedly connected to the inside of the four corners of the lower valve cover (22).

3. The automatic detection solenoid valve according to claim 2, characterized in that: Both ends of the upper valve cover (21) are provided with sealing gaskets (23), and the sealing gaskets (23) at both ends of the upper valve cover (21) are inserted into the interior of the lower valve cover (22); both ends of the lower valve cover (22) are fixedly connected with sealing gaskets (23), and the sealing gaskets (23) at both ends of the lower valve cover (22) are inserted into the interior of the upper valve cover (21).

4. The automatic detection solenoid valve according to claim 3, characterized in that: An electromagnet (26) is fixedly connected to the middle of the upper end of the upper valve cover (21), and a movable iron column (261) is slidably connected to the middle of the upper valve cover (21), and the movable iron column (261) is located directly below the electromagnet (26).

5. The automatic detection solenoid valve according to claim 4, characterized in that: The lower end of the movable iron column (261) passes through the sealing cover (18), and one end of the movable iron column (261) passing through the sealing cover (18) is fixedly connected to a sealing plate (264), the sealing plate (264) is slidably connected inside the connecting pipe (11), and the sealing plate (264) is located at the upper end of the mounting cavity (14) and the baffle (17), and one side of the lower end of the sealing plate (264) is fixedly connected to a third pressure sensor (265).

6. The automatic detection solenoid valve according to claim 5, characterized in that: The lower end of the movable iron column (261) is fixedly connected to a limiting plate (262), and the limiting plate (262) is slidably connected to the interior of the upper valve cover (21). The upper surface of the limiting plate (262) is fixedly connected to a spring (263), and the spring (263) is sleeved on the middle part of the movable iron column (261).

7. The automatic detection solenoid valve according to claim 2, characterized in that: A temperature sensor (27) is provided on one side of the upper end of the upper valve cover (21), a control module (28) is provided on the other side of the upper end of the upper valve cover (21), and an electromagnetic coil detection module (25) is provided at the middle upper end of the upper valve cover (21), and the electromagnetic coil detection module (25) comprises a voltage and resistance detection structure and a current transformer.

8. The automatic detection solenoid valve according to claim 1, characterized in that: Both ends of the connecting pipe (11) are provided with connecting sleeves (4), the connecting sleeve (4) comprising a sleeve (41) and a limiting ring (42), the limiting ring (42) being fixedly connected to the inner surface of the sleeve (41), the sleeve (41) being rotatably connected to the outer surface of the connecting pipe (11), the limiting ring (42) being rotatably connected to the inside of the connecting pipe (11), and the inner surface of the sleeve (41) being provided with threads.

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