Electromagnetic valve with switch detection function

Abstract

The utility model provides an electromagnetic valve with a switch detection function, which belongs to the technical field of electromagnetic valves, and comprises a valve body, a valve core, a switch, a switch and a switch, a water inlet is formed in the end of the water outlet bin, the water inlet bin is communicated with the water outlet bin through the water inlet, and the water inlet is located in the sealing bin. The annular pressing plate is arranged at the end part of the water inlet bin; the loose joint is connected with the threaded section at the end part of the water inlet bin and covers the annular pressing plate, and a plurality of anti-skid grains are arranged on the outer wall of the loose joint; the on-off module is detachably connected with the sealing bin; and the reed switch is arranged at the top end of the on-off module and is magnetically connected with the on-off module. The electromagnetic valve has the advantage that the use reliability of the electromagnetic valve is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to an electromagnetic valve with a switch detection function. Background Technology

[0002] A solenoid valve is an electromagnetically controlled device used in automation to control fluids, such as adjusting the direction, flow rate, speed, and other parameters of media flow. It is an actuator. The working principle of a solenoid valve is that when energized, an electromagnetic coil generates electromagnetic force to lift the closing element from the valve seat, thus opening the valve; when de-energized, the electromagnetic force disappears, and a spring presses the closing element back onto the valve seat, closing the valve.

[0003] Traditional solenoid valves perform corresponding actions (opening or closing) when energized, but do not provide feedback on whether the corresponding action has been performed. That is, the controller can remotely control the solenoid valve, but it is unclear whether the solenoid valve has performed the action. This is not conducive to remote monitoring and fault diagnosis of solenoid valves, and it is possible that the solenoid valve malfunctions will go undetected for a long time.

[0004] Therefore, how to provide a solenoid valve with on / off detection function to improve the reliability of solenoid valve use has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a solenoid valve with a switch detection function, thereby improving the reliability of the solenoid valve.

[0006] This utility model is implemented as follows: a solenoid valve with a switch detection function, comprising:

[0007] A valve body is provided with an inlet chamber, an outlet chamber and a sealing chamber; the outlet chamber is provided with an inlet at its end, the inlet chamber is connected to the outlet chamber through the inlet, and the inlet is located inside the sealing chamber;

[0008] An annular pressure plate is provided at the end of the water inlet chamber;

[0009] A union is connected to the threaded section at the end of the water inlet chamber, covering the annular pressure plate, and the outer wall is provided with several anti-slip grooves;

[0010] A switching module is detachably connected to the sealed chamber;

[0011] A reed switch is located at the top of the on / off module and is magnetically connected to the on / off module.

[0012] Furthermore, the on / off module includes:

[0013] A sealing diaphragm has a pressure relief hole in the middle and a pilot hole at the edge; the sealing diaphragm covers the water inlet, and the pilot hole is connected to the water inlet chamber.

[0014] A coil frame has a movable iron core compartment at the lower middle part and a movable magnet compartment at the upper middle part. An electromagnetic coil is wound in the middle, and the bottom end is detachably connected to the sealed compartment.

[0015] A movable iron core is located inside the movable iron core chamber, and its bottom end covers the pressure relief hole;

[0016] A variable diameter spring is sleeved on the moving iron core and abuts against the bottom end of the coil frame;

[0017] A magnet is disposed inside the movable compartment of the magnet and is magnetically connected to the reed switch;

[0018] A spring of equal diameter, one end of which abuts against the coil frame and the other end of which abuts against the magnet;

[0019] A coil cover is fitted over the coil frame and is detachably connected to the coil frame; the reed switch is located at the top of the coil cover.

[0020] Furthermore, the bottom end of the moving iron core is tapered to match the pressure relief hole.

[0021] Furthermore, the coil cover and coil frame are detachably connected to the sealing chamber by screws.

[0022] The advantages of this utility model are:

[0023] By installing an on / off module on the sealing chamber of the valve body, which includes a coil frame, a magnet, and a constant-diameter spring, the magnet is located in the movable magnet chamber of the coil frame. The two ends of the constant-diameter spring abut against the coil frame and the magnet, respectively. An electromagnetic coil is wound in the middle of the coil frame. When the electromagnetic coil is energized, it can move the magnet within the movable magnet chamber. A reed switch is installed at the top of the on / off module. By sensing the displacement state of the magnet through the reed switch, the on / off state of the solenoid valve can be known, enabling remote monitoring and fault diagnosis of the solenoid valve, thereby greatly improving the reliability of the solenoid valve. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the structure of a solenoid valve with switch detection function according to this utility model.

[0026] Figure 2 This is a front view of a solenoid valve with a switch detection function according to this utility model.

[0027] Figure 3 This is a cross-sectional view of the on / off module of this utility model.

[0028] Figure 4 This is a cross-sectional view of the reed switch of this utility model.

[0029] Figure 5 This is one of the exploded views of a solenoid valve with a switch detection function according to this utility model.

[0030] Figure 6 This is the second exploded view of a solenoid valve with a switch detection function according to this utility model.

[0031] Marker explanation:

[0032] 100-A solenoid valve with switch detection function, 1-valve body, 2-annular pressure plate, 3-union, 4-on / off module, 5-reed switch, 11-inlet chamber, 12-outlet chamber, 13-sealing chamber, 111-threaded section, 121-inlet, 31-anti-slip texture, 41-sealing diaphragm, 42-coil frame, 43-moving iron core, 44-variable diameter spring, 45-magnet, 46-equal diameter spring, 47-coil cover, 411-pressure relief hole, 412-pilot hole, 421-moving iron core chamber, 422-moving magnet chamber. Detailed Implementation

[0033] This utility model embodiment provides a solenoid valve 100 with a switch detection function, which solves the technical problem in the prior art that the solenoid valve performs a corresponding action when energized but does not provide feedback on whether the corresponding action has been performed, which is not conducive to the remote monitoring and fault diagnosis of the solenoid valve, and achieves the technical effect of greatly improving the reliability of the solenoid valve.

[0034] The technical solution in this utility model embodiment is to solve the above problems. The general idea is as follows: A reed switch 5 is set at the top of the on / off module 4. The reed switch 5 senses the displacement state of the magnet 45 in the on / off module 4 so as to remotely monitor and diagnose the solenoid valve 100, thereby improving the reliability of the solenoid valve 100.

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0036] Please refer to Figures 1 to 6 As shown, a preferred embodiment of the solenoid valve 100 with switch detection function of this utility model includes:

[0037] A valve body 1 includes an inlet chamber 11, an outlet chamber 12, and a sealing chamber 13. The outlet chamber 12 has an inlet 121 at its end, and the inlet chamber 11 communicates with the outlet chamber 12 via the inlet 121. The inlet 121 is located within the sealing chamber 13. Both the inlet chamber 11 and the outlet chamber 12 have a threaded section 111 at their ends. The flow of water can be controlled by opening and closing the inlet 121. The sealing chamber 13 is located in the middle of the valve body 1.

[0038] An annular pressure plate 2 is provided at the end of the water inlet chamber 11;

[0039] A live joint 3 is connected to the threaded section 111 at the end of the water inlet 11, covering the annular pressure plate 2, and the outer wall is provided with several anti-slip textures 31;

[0040] A switch module 4 is detachably connected to the sealing chamber 13 and is used to switch the water flow of the solenoid valve 100.

[0041] A reed switch 5 is located at the top of the on / off module 4 and is magnetically connected to the on / off module 4. It is used to sense the on / off state of the solenoid valve 100. The reed switch 5 has two iron springs (pole plates) inside, one of which is located above the other. When the magnet 45 moves upward, the two iron springs attract each other and thus conduct electricity. When the magnet 45 moves downward, the two iron springs separate from each other and thus disconnect. The on / off state of the solenoid valve 100 can be determined by the on / off signal of the reed switch 5.

[0042] The on / off module 4 includes:

[0043] A sealing diaphragm 41 has a pressure relief hole 411 in the middle and a pilot hole 412 at the edge. The diameter of the pressure relief hole 411 is larger than that of the pilot hole 412. The sealing diaphragm 41 covers the water inlet 121 and is used to open or close the water inlet 121. The pilot hole 412 is connected to the water inlet chamber 11.

[0044] A coil frame 42 has a movable iron core compartment 421 at the lower end of the middle section and a movable magnet compartment 422 at the upper end of the middle section. An electromagnetic coil (not shown) is wound in the middle section, and the bottom end is detachably connected to the sealed compartment 13.

[0045] A movable iron core 43 is located inside the movable iron core chamber 421, and its bottom end covers the pressure relief hole 411, that is, the bottom end is pressed against the pressure relief hole 411 to seal the pressure relief hole 411.

[0046] A variable diameter spring 44 is sleeved on the moving iron core 43 and abuts against the bottom end of the coil frame 42 to provide elastic force for the reset of the moving iron core 43;

[0047] A magnet 45 is disposed in the magnet movable chamber 422 and is magnetically connected to the reed switch 5 to provide magnetic attraction force for lifting the moving iron core 43;

[0048] A spring 46 of equal diameter, one end of which abuts against the coil frame 42 and the other end of which abuts against the magnet 45, is used to provide elastic force for the magnet 45 to return to its original position;

[0049] A coil cover 47 is fitted over the coil frame 42 and is detachably connected to the coil frame 42; the reed switch 5 is located at the top of the coil cover 47 to provide protection.

[0050] The bottom end of the moving iron core 43 is tapered and matches the pressure relief hole 411.

[0051] The coil cover 47 and the coil frame 42 are detachably connected to the sealing chamber 13 by screws (not shown) to improve the reliability of the connection.

[0052] Working principle of this utility model:

[0053] Boiling water: After the electromagnetic coil is energized, the magnetic force generated by the electromagnetic coil attracts the magnet 45 and the moving iron core 43 to the middle, thereby compressing the equal diameter spring 46 and the variable diameter spring 44. During the compression process, the magnet 45 assists in attracting the moving iron core 43 to accelerate its upward movement. As the moving iron core 43 is lifted, it opens the pressure relief hole 411 of the sealing diaphragm 41, allowing the water in the inlet chamber 11 to first flow into the sealing chamber 13 through the pilot hole 412, and then flow into the outlet chamber 12 through the pressure relief hole 411 for water discharge. When the magnet 45 moves downward, the reed switch 5 is disconnected, thereby transmitting the opening signal of the solenoid valve 100 to the outside.

[0054] Water shut-off: After the electromagnetic coil is de-energized, the attractive force exerted by the electromagnetic coil on the magnet 45 and the moving iron core 43 disappears. The magnet 45 and the moving iron core 43 return to their original positions under the action of the equal diameter spring 46 and the variable diameter spring 44, respectively. During the return process, the moving iron core 43 is pressed down to seal the pressure relief hole 411, thereby stopping the water flow. When the magnet 45 returns to its original position, the reed switch 5 is turned on, thereby transmitting the closing signal of the solenoid valve 100 to the outside.

[0055] In summary, the advantages of this utility model are as follows:

[0056] By installing an on / off module on the sealing chamber of the valve body, which includes a coil frame, a magnet, and a constant-diameter spring, the magnet is located in the movable magnet chamber of the coil frame. The two ends of the constant-diameter spring abut against the coil frame and the magnet, respectively. An electromagnetic coil is wound in the middle of the coil frame. When the electromagnetic coil is energized, it can move the magnet within the movable magnet chamber. A reed switch is installed at the top of the on / off module. By sensing the displacement state of the magnet through the reed switch, the on / off state of the solenoid valve can be known, enabling remote monitoring and fault diagnosis of the solenoid valve, thereby greatly improving the reliability of the solenoid valve.

[0057] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A solenoid valve with on / off detection function, characterized in that: include: A valve body is provided with an inlet chamber, an outlet chamber and a sealing chamber; the outlet chamber is provided with an inlet at its end, the inlet chamber is connected to the outlet chamber through the inlet, and the inlet is located inside the sealing chamber; An annular pressure plate is provided at the end of the water inlet chamber; A union is connected to the threaded section at the end of the water inlet chamber, covering the annular pressure plate, and the outer wall is provided with several anti-slip grooves; A switching module is detachably connected to the sealed chamber; A reed switch is located at the top of the on / off module and is magnetically connected to the on / off module.

2. The solenoid valve with switch detection function as described in claim 1, characterized in that: The on / off module includes: A sealing diaphragm has a pressure relief hole in the middle and a pilot hole at the edge; the sealing diaphragm covers the water inlet, and the pilot hole is connected to the water inlet chamber. A coil frame has a movable iron core compartment at the lower middle part and a movable magnet compartment at the upper middle part. An electromagnetic coil is wound in the middle, and the bottom end is detachably connected to the sealed compartment. A movable iron core is located inside the movable iron core chamber, and its bottom end covers the pressure relief hole; A variable diameter spring is sleeved on the moving iron core and abuts against the bottom end of the coil frame; A magnet is disposed inside the movable compartment of the magnet and is magnetically connected to the reed switch; A spring of equal diameter, one end of which abuts against the coil frame and the other end of which abuts against the magnet; A coil cover is fitted over the coil frame and is detachably connected to the coil frame; the reed switch is located at the top of the coil cover.

3. A solenoid valve with switch detection function as described in claim 2, characterized in that: The bottom end of the moving iron core is tapered to match the pressure relief hole.

4. A solenoid valve with on / off detection function as described in claim 2, characterized in that: The coil cover and coil frame are detachably connected to the sealing chamber by screws.

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