Electromagnetic valve

Abstract

The utility model relates to the technical field of valves, in particular to an electromagnetic valve which comprises a valve body shell, a coil is fixedly connected in the valve body shell, the top end of the coil is in threaded connection with a first bolt, the inner top wall of the coil is fixedly connected with a composite spring, and the bottom end of the composite spring is fixedly connected with a valve element. The outer surface of the valve element is in transmission connection with a valve seat, and the top end of the valve body shell is in threaded connection with a fan cover. The second bolt, the first pipeline, the second pipeline and the filter plate are arranged, the second pipeline is in threaded connection with the first pipeline so as to facilitate disassembly, the filter plate can filter most of foreign matters, and when a worker conducts inspection regularly, the thread of the second bolt is disengaged, the first connecting block and the second connecting block are separated, and the work efficiency is improved. And the situation that due to long-time work, the inner valve seat cannot be normally closed, and the working efficiency of the electromagnetic valve is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and particularly relates to a solenoid valve. Background Technique

[0002] A solenoid valve is an automatic basic component that uses electromagnetic principles to control fluid systems. It belongs to an actuator and is used to control the direction, flow rate, speed, and other parameters of media such as hydraulic and pneumatic media. In actual use, there is a lack of an effective disassembly method during the connection process between the solenoid valve and the valve body, which is not convenient for future maintenance and inspection.

[0003] After retrieval, a solenoid valve disclosed in the Chinese utility model patent with the publication number CN214789317U is a solenoid valve, including a valve body. A coil assembly and a housing are provided on the valve body. It also includes a terminal housing and a power cord. Two steel needles are provided on the coil assembly. The two ends of the enameled wire on the coil assembly are respectively wound around the corresponding steel needles. Two connection holes are provided on the terminal housing. One end of the power cord is provided with a connection head that matches the connection hole. The end of the steel needle away from the coil assembly is connected into the corresponding connection head. A card slot that matches the housing is provided on the terminal housing. The utility model can improve the stability when the enameled wire is connected to the power cord, and the production process is simple, and it can realize the automatic processing when the enameled wire is connected to the power cord.

[0004] However, when the above device is in use, if there are foreign objects in the valve, the solenoid valve is fixed to the valve, and it cannot be cleaned in time, resulting in reduced efficiency. Moreover, if the solenoid valve is used for too long, the coil generates too much heat, which may affect the performance and service life of the solenoid valve. Content of the Utility Model

[0005] The purpose of the utility model is to provide a solenoid valve to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A solenoid valve includes a valve body housing. A coil is fixedly connected inside the valve body housing. A first bolt is threadedly connected to the top end of the coil. A composite spring is fixedly connected to the inner top wall of the coil. A valve core is fixedly connected to the bottom end of the composite spring. A valve seat is drivingly connected to the outer surface of the valve core. A fan cover is threadedly connected to the top end of the valve body housing. A fan frame is fixedly connected to the inner top wall of the fan cover. A second fixing plate is fixedly connected to the bottom end of the fan frame. A first connecting block is fixedly connected to the bottom end of the valve body housing. Threaded grooves are opened on both sides of the top end of the first connecting block. Second bolts are threadedly arranged inside the threaded grooves. A second connecting block is threadedly connected to the middle of the outer surface of the second bolt. A first pipe is fixedly connected to the bottom end of the second connecting block.

[0008] Preferably, a fixing groove is formed on the outer surface of the valve body housing, and a terminal is snap-fitted inside the fixing groove.

[0009] Preferably, a first connecting rod is fixedly connected to the bottom end of the valve core, and a first fixing plate is fixedly connected to the bottom end of the first connecting rod.

[0010] Preferably, a servo motor is fixedly connected to the bottom end of the second fixing plate, and a fan is fixedly connected to the bottom end of the servo motor.

[0011] Preferably, a first blocking plate is fixedly connected to the inner top wall of the first pipe, and a second blocking plate is fixedly connected to the inner bottom wall of the first pipe.

[0012] Preferably, one end of the first pipe is threadedly connected to a second pipe, and a filter plate is fixedly connected inside the second pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For this solenoid valve, through the arrangement of the second bolt, the first pipe, the second pipe and the filter plate, the second pipe is threaded onto the first pipe for easy disassembly. The filter plate can filter most foreign matters. When the staff conducts regular inspections, the second bolt is unscrewed, and the first connecting block and the second connecting block are separated, so as to clean the inside of the first pipe, avoiding the situation that the internal valve seat cannot be normally closed due to long-term work, resulting in a reduction in the working efficiency of the solenoid valve.

[0015] 2. For this solenoid valve, through the arrangement of the fan cover, the servo motor and the fan, when the solenoid valve works for a long time, the fan cover can be threaded onto the top end of the valve body housing, and an external power supply is connected to the servo motor. Under the action of the servo motor, the fan rotates to dissipate heat from the coil, preventing the coil from overheating due to long-term work, which may affect the performance and service life of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic perspective view of the whole of the present utility model;

[0017] Figure 2 is a schematic view of the pipeline details of the present utility model;

[0018] Figure 3 is a schematic view of the internal structure of the fan cover of the present utility model;

[0019] Figure 4 is a schematic cross-sectional view of the solenoid valve of the present utility model.

[0020] In the figure: 1. Valve body housing; 2. Coil; 3. First bolt; 4. Composite spring; 5. Spool; 6. Valve seat; 7. Fan cover; 8. Fan frame; 9. Second fixing plate; 10. First connecting block; 11. Second bolt; 12. Second connecting block; 13. First pipe; 14. Terminal; 15. First connecting rod; 16. First fixing plate; 17. Servo motor; 18. Fan; 19. First baffle; 20. Second baffle; 21. Second pipe; 22. Filter plate. Detailed implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 As shown, a technical solution provided by the present invention:

[0023] A solenoid valve includes a valve body housing 1. A coil 2 is fixedly connected inside the valve body housing 1. A first bolt 3 is threadedly connected to the top end of the coil 2. A composite spring 4 is fixedly connected to the inner top wall of the coil 2. The bottom end of the composite spring 4 is fixedly connected to a spool 5. The outer surface of the spool 5 is drivingly connected to a valve seat 6. A fan cover 7 is threadedly connected to the top end of the valve body housing 1. The inner top wall of the fan cover 7 is fixedly connected to a fan frame 8. The bottom end of the fan frame 8 is fixedly connected to a second fixing plate 9. The bottom end of the valve body housing 1 is fixedly connected to a first connecting block 10. Threaded grooves are provided on both sides of the top end of the first connecting block 10. A second bolt 11 is threadedly arranged inside the threaded grooves. The middle part of the outer surface of the second bolt 11 is threadedly connected to a second connecting block 12. The bottom end of the second connecting block 12 is fixedly connected to a first pipe 13.

[0024] Specifically, the fan cover 7 is threadedly connected to the top end of the valve body housing 1 so that when the solenoid valve works for a long time, the fan 18 can work in time to dissipate heat from the coil 2;

[0025] It can be understood that the fan 18 dissipates heat from the coil 2, thereby extending the performance and service life of the solenoid valve;

[0026] In this embodiment, preferably, a fixing groove is provided on the outer surface of the valve body housing 1, and a terminal 14 is clamped inside the fixing groove;

[0027] Specifically, the valve body housing 1 fixes the coil 2 and the valve body housing 1 together through the first bolt 3, and the terminal 14 facilitates quick connection of the power supply wire to avoid inconvenience during wiring;

[0028] It is understandable that fixed slots are provided so that the staff can quickly connect the power cord, and when it is damaged, it can be replaced in time;

[0029] In this embodiment, preferably, a first connecting rod 10 is fixedly connected to the bottom end of the valve core 5, and a first fixing plate 16 is fixedly connected to the bottom end of the first connecting rod 10;

[0030] Specifically, after the coil 2 is powered on, the valve core 5 drives the first connecting rod 15 and the first fixing plate 16, and at the same time, the bottom end of the first fixing plate 16 presses against the inner bottom end of the valve seat 6 to move;

[0031] It is understandable that the valve core 5 presses against the inner bottom end of the valve seat 6 and moves downward, and the outer surface of the valve seat 6 fits together with the edges of the first blocking plate 19 and the second blocking plate 20 to block the flowing liquid;

[0032] In this embodiment, preferably, a servo motor 17 is fixedly connected to the bottom end of the second fixing plate 9, and a fan 18 is fixedly connected to the bottom end of the servo motor 17;

[0033] Specifically, an external power supply is connected to the servo motor 17, so that the servo motor 17 rotates and drives the fan 18;

[0034] It is understandable that by rotating the fan 18, the valve body housing 1 can be dissipated heat;

[0035] In this embodiment, preferably, a first blocking plate 19 is fixedly connected to the inner top wall of the first pipe 13, and a second blocking plate 20 is fixedly connected to the inner bottom wall of the first pipe 13;

[0036] Specifically, the first blocking plate 19 is on the inner top wall in the middle of the first pipe 13, and the second blocking plate 20 is on the inner bottom wall in the middle of the first pipe 13, and the horizontal distance between the two is the same as the distance from the bottom end of the valve seat 6;

[0037] It is understandable that during operation, the bottom end of the valve seat 6 fits with the first blocking plate 19 and the second blocking plate 20 to block the liquid flow;

[0038] In this embodiment, preferably, one end of the first pipe 13 is threadedly connected to a second pipe 21, and a filter plate 22 is fixedly connected to the inside of the second pipe 21;

[0039] Specifically, the filter plate 22 is fixed inside the second pipe 21 for filtering large debris, and the second pipe 21 is screwed to the first pipe 13;

[0040] It is understandable that when the solenoid valve is working, the filter plate 22 can filter out larger debris, and the second pipe 21 can be removed and cleaned, which is convenient for the staff to clean.

[0041] When a solenoid valve according to this embodiment is in use, an external power supply is connected to the coil 2, causing the valve core 5 to drive the first connecting rod 15 and the first fixing plate 16. The first fixing plate 16 moves downward along the inner bottom end of the valve seat 6, causing one side of the bottom end of the valve seat 6 to fit against the top side of the second blocking plate 20, and one side of the outer surface of the valve seat 6 to fit against one side of the first blocking plate 19, thereby stopping the liquid flow. When the power supply is turned off, under the action of the composite spring 4, the valve core 5 and the valve seat 6 move upward. The filter plate 22 is fixed inside the second pipe 21 and can filter out most of the debris. The staff can regularly clean the inside of the valve. The second pipe 21 is threaded onto the first pipe 13 and can be disassembled. Then, the second bolt 11 is loosened and detached to facilitate cleaning the inside of the first pipe 13, preventing them from being fixedly connected and unable to be disassembled and cleaned, resulting in foreign matter between the valve seat 6 and the blocking plate inside the solenoid valve and unable to close properly, leading to a decrease in work efficiency. When the solenoid valve works for a long time, the fan cover 7 can be threaded onto the top of the valve body housing 1, and an external power supply is connected to the servo motor 17 to cause the fan 18 to rotate to dissipate heat from the coil 2, thereby extending the performance and lifespan of the solenoid valve.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve, characterized in that: The invention comprises a valve body shell (1), wherein a coil (2) is fixedly connected inside the valve body shell (1), a first bolt (3) is threadedly connected to the top end of the coil (2), a composite spring (4) is fixedly connected to the inner top wall of the coil (2), a valve core (5) is fixedly connected to the bottom end of the composite spring (4), a valve seat (6) is drivingly connected to the outer surface of the valve core (5), a fan cover (7) is threadedly connected to the top end of the valve body shell (1), a fan frame (8) is fixedly connected to the inner top wall of the fan cover (7), a second fixing plate (9) is fixedly connected to the bottom end of the fan frame (8), a first connecting block (10) is fixedly connected to the bottom end of the valve body shell (1), thread grooves are provided on both sides of the top end of the first connecting block (10), a second bolt (11) is provided on the inner thread of the thread groove, a second connecting block (12) is threadedly connected to the middle part of the outer surface of the second bolt (11), and a first pipe (13) is fixedly connected to the bottom end of the second connecting block (12).

2. A solenoid valve according to claim 1, characterized in that: The outer surface of the valve body shell (1) is provided with a fixing groove, and a terminal post (14) is clamped inside the fixing groove.

3. The solenoid valve according to claim 1, characterized in that: The bottom end of the valve core (5) is fixedly connected to a first connecting rod (15), and the bottom end of the first connecting rod (15) is fixedly connected to a first fixing plate (16).

4. The solenoid valve according to claim 1, characterized in that: The bottom end of the second fixing plate (9) is fixedly connected to a servo motor (17), and the bottom end of the servo motor (17) is fixedly connected to a fan (18).

5. The solenoid valve according to claim 1, characterized in that: A first obstruction plate (19) is fixedly connected to the inner top wall of the first pipe (13), and a second obstruction plate (20) is fixedly connected to the inner bottom wall of the first pipe (13).

6. The solenoid valve according to claim 1, characterized in that: One end of the first pipe (13) is threadedly connected to a second pipe (21), and a filter plate (22) is fixedly connected inside the second pipe (21).

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