Electromagnetic valve with filtering function

Abstract

This invention discloses a solenoid valve with a filtering function, belonging to the field of solenoid valve technology. It includes a lower cavity, an upper cavity, and an electromagnetic assembly. The lower and upper cavities are welded together. The electromagnetic assembly is positioned above the upper cavity. A baffle plate, which is arc-shaped, is positioned above the collection tank. A sliding rod is provided on the inner wall of the lower cavity, and a filter cylinder is sleeved on the sliding rod. A guide groove is provided at the connection between the lower and upper cavities, positioned directly above the sliding rod. By incorporating the collection tank, baffle plate, filter cylinder, and drain, debris in the liquid can be collected, preventing backflow into the valve body and damage to the solenoid valve. A sealing cavity is formed by the cooperation of a static sealing ring and a dynamic sealing ring, providing sealing protection for the electromagnetic assembly and further ensuring the normal operation of the solenoid valve.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic valve technology, and specifically relates to an electromagnetic valve with a filtering function. Background Technology

[0002] Solenoid valves are basic automated components that use electromagnetic principles to control the flow of fluids or gases. They are actuators and are often used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium.

[0003] Currently, when a solenoid valve is in operation, water flow is introduced, and some of the water flow carries pipe debris. This debris enters the solenoid valve and may clog small internal components such as the valve core and valve seat, causing the solenoid valve to fail to open or close properly, or even to malfunction completely. This significantly increases the cost of maintenance and replacement parts. Therefore, a solenoid valve with a filtration function is needed. Summary of the Invention

[0004] Therefore, it is necessary to provide a solenoid valve with a filtration function for filtering debris in water flow.

[0005] To address the problems mentioned in the background art, the present invention provides the following technical solution: a solenoid valve with a filtering function, comprising a lower cavity, an upper cavity, and an electromagnetic assembly; the lower cavity and the upper cavity are welded together, the electromagnetic assembly is disposed above the upper cavity, a collection trough for collecting debris entering the solenoid valve is provided on the other side of the water inlet of the lower cavity, a baffle plate is disposed above the collection trough, the baffle plate is an arc-shaped plate, a sliding rod is disposed on the inner wall of the lower cavity, a filter cylinder is sleeved on the sliding rod, the filter cylinder is slidably connected to the sliding rod, and a guide groove for connecting the lower cavity and the upper cavity is provided at the connection point of the lower cavity and the upper cavity, the guide groove is disposed directly above the sliding rod.

[0006] Furthermore, a trough is provided at the bottom of the collection tank for discharging debris from the collection tank, and a plug is installed on the trough, which is threadedly connected to the trough for installation.

[0007] Furthermore, a sliding hole is provided at the top of the upper cavity, and static sealing rings one on both sides of the sliding hole are provided. A ball bearing is provided on the inner wall of the static sealing ring one, and the ball bearing is embedded in the static sealing ring one. A second static sealing ring is provided on the outer side of the static sealing ring one.

[0008] Furthermore, the electromagnetic component includes an electromagnet, a coil, a spring, and a moving iron core; slide rails are provided on both sides of the moving iron core, and the slide rails are slidably connected to the ball bearings.

[0009] Furthermore, a dynamic sealing ring is installed on the moving iron core, and a sealing block is provided on the dynamic sealing ring to cooperate with the static sealing ring one and the static sealing ring two to form a sealing cavity, which is an air cavity.

[0010] Furthermore, a core post is provided at the end of the moving core, and a sealing plug is installed on the core post, with one end of the core post slightly protruding from the sealing plug.

[0011] Furthermore, the width of the guide groove is the same as that of the filter cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting up a collection tank, baffle plate, filter cylinder and trough, it is possible to collect debris in the liquid and prevent debris from flowing back into the valve body and damaging the solenoid valve.

[0014] By setting up a sealing cavity with a static sealing ring and a dynamic sealing ring, the electromagnetic components are sealed and protected, further ensuring that the solenoid valve can work normally. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the solenoid valve seal.

[0016] Figure 2 Open a sectional view of the solenoid valve;

[0017] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0018] In the diagram: 10. Lower cavity; 11. Collection trough; 111. Leakage trough; 12. Plug; 13. Baffle plate; 14. Sliding rod; 15. Filter cylinder; 151. Filter hole; 16. Guide channel; 20. Upper cavity; 21. Sliding hole; 22. Static sealing ring one; 221. Ball bearing; 23. Static sealing ring two; 30. Electromagnetic assembly; 31. Electromagnet; 32. Coil; 33. Spring; 34. Moving iron core; 341. Slide rail; 342. Iron core column; 35. Moving sealing ring; 351. Sealing block; 352. Sealing cavity; 36. Sealing plug. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments.

[0020] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] Please see Figures 1 to 3This invention provides a solenoid valve with a filtering function, including a lower cavity 10, an upper cavity 20, and an electromagnetic component 30. The lower cavity 10 and the upper cavity 20 are welded together. The electromagnetic component 30 is located above the upper cavity 20. A collection trough 11 is provided on the other side of the water inlet of the lower cavity 10 to collect debris entering the solenoid valve. A drain trough 111 is provided at the bottom of the collection trough 11 to discharge debris from the collection trough 11. A plug 12 is installed on the drain trough 111 and is threadedly connected to the drain trough 111. A gasket is provided between the plug 12 and the drain trough 111 to prevent water leakage. A baffle 13 is provided above the collection trough 11. The baffle 13 is an arc plate to prevent debris in the collection trough 11 from flowing back into the channel.

[0022] A slide rod 14 is provided on the inner wall of the lower cavity 10, and a filter cylinder 15 is sleeved on the slide rod 14. A ring of filter holes 151 is provided around the filter cylinder 15 to prevent larger impurities from entering the filter cylinder 15. A connecting hole is provided in the middle of the filter cylinder 15 to slide and connect with the slide rod 14. The filter cylinder 15 can move up and down along the slide rod 15. A guide groove 16 is provided at the connection between the lower cavity 10 and the upper cavity 20 to connect the lower cavity 10 and the upper cavity 20. Liquid enters the upper cavity 20 through the lower cavity 10 and the guide groove 16. The guide groove 16 is located directly above the slide rod 14, and the width of the guide groove 16 is the same as that of the filter cylinder 15.

[0023] The top of the upper cavity 20 is provided with a sliding hole 21, and static sealing ring 22 is provided on both sides of the sliding hole 21. The inner wall of the static sealing ring 22 is provided with ball bearings 221, which can be inserted into the static sealing ring 22 and rotate. A second static sealing ring 23 is provided on the outer side of the static sealing ring 22.

[0024] An electromagnetic component 30 is provided at the sliding hole 21. The electromagnetic component 30 includes an electromagnet 31, a coil 32, a spring 33, and a moving iron core 34. The electromagnet 31 is installed on the top of the housing of the electromagnetic component 30. The coil 32 is arranged on both sides of the electromagnet 31. The spring 33 is arranged between the electromagnet 31 and the moving iron core 34. One end of the spring 33 is connected to the electromagnet 31, and the other end is connected to the moving iron core 34. When the electromagnet 31 is energized, it can drive the moving iron core 34 to compress the spring and move closer to the electromagnet 31. The moving iron core 34 is slidably connected to the sliding hole 21.

[0025] The moving iron core 34 has slide rails 341 on both sides, which are slidably connected to the balls 221. When the moving iron core 34 moves, the balls 221 can roll on the slide rails 341, reducing the friction of the moving iron core 34. The end of the moving iron core 34 is provided with an iron core column 342. A dynamic sealing ring 35 is installed on the moving iron core 34. A sealing block 351 is provided on the dynamic sealing ring 35 to cooperate with the static sealing ring 22 and the static sealing ring 23. The sealing block 351 and the static sealing ring 23 cooperate with each other. The sealing ring 22 and the static sealing ring 23 make contact and cooperate to seal, forming a sealing cavity 352 in the middle. The sealing cavity 352 becomes an air cavity to prevent water from flowing in. A sealing plug 36 is installed on the iron core column 342. One end of the iron core column 342 slightly protrudes from the sealing plug 36 to facilitate the attraction of the filter cartridge 15. The sealing plug 36 contacts the guide groove 16. The moving iron core 34 is pressed by the spring 33, so that the moving iron core 34 presses the sealing plug 36 to contact the guide groove 16 to seal.

[0026] The working principle and usage process of this invention are as follows: First, energizing the electromagnet 31 causes the moving iron core 34 to compress the spring and move closer to the electromagnet 31, causing the sealing plug 36 to disengage from the guide groove 16 and opening the guide groove 16. At this time, the electromagnet 31 moves upward, causing the iron core column 342 to move upward. The iron core column 342 attracts the filter barrel 15 to move upward along the slide rod 14 (e.g., Figure 2 As shown), larger debris is prevented from entering the filter cylinder 15 through the filter hole 151 and thus into the solenoid valve. The liquid enters the lower chamber 10, passes through the guide plate 13 and enters the collection tank 11, and then flows back into the lower chamber 10. The debris remains in the collection tank 11. The sealing block 351 contacts and cooperates with the static sealing ring 22 and the static sealing ring 23 to seal, forming a sealing cavity 352 in the middle. The sealing cavity 352 forms an air cavity, blocking the water flow. The liquid flows out through the upper chamber 20. After the solenoid valve stops working, the debris is discharged by unscrewing the plug 12.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve with a filtering function, comprising a lower chamber (10), an upper chamber (20), and a solenoid assembly (30); characterized in that: The lower cavity (10) and the upper cavity (20) are welded together. The electromagnetic component (30) is located above the upper cavity (20). A collection trough (11) for collecting debris entering the electromagnetic valve is provided on the other side of the water inlet of the lower cavity (10). A baffle plate (13) is provided above the collection trough (11). The baffle plate (13) is an arc-shaped plate. A slide rod (14) is provided on the inner wall of the lower cavity (10). A filter cylinder (15) is sleeved on the slide rod (14). The filter cylinder (15) is slidably connected to the slide rod (14). A guide groove (16) for connecting the lower cavity (10) and the upper cavity (20) is provided at the connection between the lower cavity (10) and the upper cavity (20). The guide groove (16) is located directly above the slide rod (14).

2. The solenoid valve with filtering function according to claim 1, characterized in that: The bottom of the collection tank (11) is provided with a trough (111) for discharging the debris in the collection tank (11). A plug (12) is installed on the trough (111), and the plug (12) is threadedly connected to the trough (111).

3. A solenoid valve with filtering function according to claim 1, characterized in that: The top of the upper cavity (20) is provided with a sliding hole (21), and static sealing ring one (22) is provided on both sides of the sliding hole (21). A ball (221) is provided on the inner wall of the static sealing ring one (22), and the ball (221) is embedded in the static sealing ring one (22). A static sealing ring two (23) is provided on the outer side of the static sealing ring one (22).

4. A solenoid valve with filtering function according to claim 1, characterized in that: The electromagnetic component (30) includes an electromagnet (31), a coil (32), a spring (33), and a moving iron core (34); the moving iron core (34) is provided with slide rails (341) on both sides, and the slide rails (341) are slidably connected to the ball bearings (221).

5. A solenoid valve with filtering function according to claim 4, characterized in that: A dynamic sealing ring (35) is installed on the moving iron core (34). A sealing block (351) is provided on the dynamic sealing ring (35) to cooperate with the static sealing ring one (22) and the static sealing ring two (23) to form a sealing cavity (352). The sealing cavity (352) is an air cavity.

6. A solenoid valve with filtering function according to claim 4, characterized in that: The moving iron core (34) is provided with an iron core column (342) at its end, and a sealing plug (36) is installed on the iron core column (342), with one end of the iron core column (342) slightly protruding from the sealing plug (36).

7. A solenoid valve with filtering function according to claim 1, characterized in that: The width of the guide groove (16) is the same as that of the filter cylinder (15).

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