Waterway electromagnetic valve with detachable filter screen

Abstract

The utility model relates to a waterway electromagnetic valve with a detachable filter screen, which is applied to the technical field of electromagnetic valves and realizes that water can be filtered after entering the electromagnetic valve from a water inlet and passing through the filter screen, and when the filter screen is used for a long time, meshes are blocked by incrustation and the water flow speed is influenced, a sealing cover can be screwed to open a shell, so that the water flow speed is influenced. The first screw is screwed to detach the clamping ring from the inner wall of the shell, so that the filter screen is also detached and can be cleaned, the filter screen is in threaded connection with the clamping ring through the connecting ring, if the filter screen is damaged, the filter screen can be independently detached to be replaced, and the filter screen can be replaced according to the actual water quality condition. The filter screens with different mesh numbers can be selected for replacement, cleaning or replacement, the filter screens can be clamped into the shell and then fixed through the first screws, finally the shell is sealed through the sealing cover and the sealing plug, and through the design of convenient disassembly and assembly of the filter screens, the shell can be cleaned and replaced regularly.

Description

Technical Field

[0001] This utility model relates to a water circuit solenoid valve, and more particularly to a water circuit solenoid valve with a detachable filter screen applied in the field of solenoid valve technology. Background Technology

[0002] In water control systems, solenoid valves are widely used to control the flow of water. However, water usually contains various impurities, such as silt and particles. These impurities can easily enter the solenoid valve with the water flow, which can not only affect the normal operation of the solenoid valve and reduce its service life, but may also cause the valve to not close tightly and leak. To solve this problem, existing water solenoid valves usually have a filter screen installed at the inlet to filter impurities in the water.

[0003] Chinese patent CN216555376U discloses a water circuit solenoid valve with an added filter screen to effectively protect the solenoid valve. It also has two pathways: one is controlled by the solenoid valve and connected to a water purifier, and the other is directly connected to a faucet to ensure that leakage is prevented.

[0004] Most existing filters are fixed inside the solenoid valve, making them difficult to disassemble and clean. When too many impurities accumulate on the filter, they can affect the flow of water and reduce the working efficiency of the solenoid valve. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that most existing filter screens are fixed inside the solenoid valve, making them difficult to disassemble and clean. When too many impurities accumulate on the filter screen, it will affect the flow of water and reduce the working efficiency of the solenoid valve.

[0006] To address the aforementioned problems, this utility model provides a water circuit solenoid valve with a detachable filter screen, comprising a solenoid valve having an inlet and an outlet. A filter port communicating with the inlet is fixedly connected to the bottom wall of the inlet. A filter mechanism is installed inside the filter port. The filter mechanism includes a housing with a sealing ring threadedly connected to the inner wall of the filter port. A filter screen is detachably connected inside the housing. A connecting ring is fixedly connected to the bottom end of the filter screen, and the connecting ring has the same inner diameter as the filter screen. A retaining ring is threadedly connected to the surface of the connecting ring, and the outer diameter of the retaining ring is the same as the inner diameter of the housing. Multiple corresponding screw holes are equidistantly opened in the retaining ring and the side wall of the housing. A first screw is threadedly connected to the screw holes. A sealing cap is threadedly connected to the bottom end of the housing. A sealing plug that engages with the inside of the housing is fixedly connected inside the sealing cap. The surface of the filter mechanism inside the housing is coated with an anti-rust coating.

[0007] In the aforementioned water circuit solenoid valve, the design of easily detachable filter screen allows for regular cleaning and replacement of the outer casing.

[0008] As a further improvement of this application, the retaining ring is fixedly connected to a slide rail located on the outer ring of the filter screen at one end near the filter screen. A slider is slidably connected to the slide rail, and a scraper is detachably connected to the slider, with the scraper in contact with the surface of the filter screen.

[0009] As a further improvement to this application, a locking block is fixedly connected to the end of the slider away from the slide rail, and a slot is opened at the end of the scraper near the slider, and the locking block and the slot are locked together and fixed by a second screw.

[0010] As a further improvement of this application, a groove is provided at the end of the retaining ring away from the filter screen, and a magnetic block is slidably connected in the groove.

[0011] As a further improvement of this application, both the slide and the slider are designed with strong magnetic material, and the magnetic block attracts the slider after it is engaged with the slide.

[0012] As a further improvement to this application, a handle is fixedly connected to the end of the magnetic block away from the slide groove, and an anti-slip sleeve is fitted on the surface of the handle.

[0013] In summary, when water enters the solenoid valve through the inlet and passes through the filter screen, it can be filtered. When the filter screen is used for a long time, the mesh will be clogged with scale, affecting the water flow rate. At this time, the sealing cover can be unscrewed to open the outer shell, and then the first screw can be turned to remove the retaining ring from the inner wall of the outer shell, thereby removing the filter screen. The filter screen can be cleaned. The filter screen is connected to the retaining ring by a connecting ring thread. If the filter screen is damaged, it can be removed and replaced separately. Similarly, depending on the actual water quality, different mesh sizes of filter screens can be selected for replacement. After cleaning or replacement, it can be snapped back into the outer shell and fixed with the first screw. Finally, the outer shell is sealed with the sealing cover and sealing plug. Attached Figure Description

[0014] Figure 1 This is an isometric view of the water circuit solenoid valve according to the first embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the filter installation according to the first and second embodiments of this application;

[0016] Figure 3 This is a schematic diagram of the filter screen disassembled in the first embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the cleaning brush installation according to the second embodiment of this application;

[0018] Figure 5 For this application Figure 4 Enlarged view of point A in the middle;

[0019] Figure 6 This is a schematic diagram of the bottom structure of the filter screen according to the second embodiment of this application;

[0020] Figure 7 For this application Figure 6 Enlarged view of section B in the middle.

[0021] Explanation of the labels in the diagram:

[0022] 1. Solenoid valve; 2. Inlet; 3. Outlet; 4. Filter port; 5. Housing; 6. Sealing cap; 7. First screw; 8. Filter screen; 9. Screw hole; 10. Slide rail; 11. Slider; 12. Slide groove; 13. Magnetic block; 14. Scraper; 15. Snap ring; 16. Connecting ring; 17. Sealing plug; 18. Second screw. Detailed Implementation

[0023] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] First implementation method:

[0025] Figures 1-3 A water circuit solenoid valve with a detachable filter screen is shown, including a solenoid valve 1 with an inlet 2 and an outlet 3. A filter port 4 communicating with the inside of the inlet 2 is fixedly connected to the bottom wall of the inlet 2. A filter mechanism is installed inside the filter port 4. The filter mechanism includes a housing 5 with a sealing ring threaded to the inner wall of the filter port 4. A filter screen 8 is detachably connected inside the housing 5. A connecting ring 16 is fixedly connected to the bottom end of the filter screen 8, and the connecting ring 16 has the same inner diameter as the filter screen 8. A retaining ring 15 is threadedly connected to the surface of the connecting ring 16, and the outer diameter of the retaining ring 15 has the same inner diameter as the housing 5. The retaining ring 15 and the side wall of the housing 5 are provided with a plurality of corresponding screw holes 9 at equal intervals in a ring. A first screw 7 is threadedly connected to the screw holes 9. A sealing cover 6 is threadedly connected to the bottom end of the housing 5. A sealing plug 17 that engages with the inside of the housing 5 is fixedly connected inside the sealing cover 6. The surface of the filter mechanism located inside the housing 5 is coated with an anti-rust coating.

[0026] Working principle: When water enters the solenoid valve 1 from the inlet 2 (water enters the solenoid valve 1 from the inlet 2 and flows into the filter port 4, is filtered by the filter screen 8, and then is discharged from the outlet 3; this structure is a technology owned by the water circuit solenoid valve 1 and will not be described in detail here), it can be filtered by the filter screen 8. When the filter screen 8 is used for a long time, the mesh is blocked by scale, which affects the water flow speed. At this time, the sealing cover 6 can be turned to open the outer shell 5, and then the first screw 7 can be turned to remove the retaining ring 15 from the inner wall of the outer shell 5, thereby removing the filter screen 8. The filter screen 8 can be cleaned. The filter screen 8 is connected to the retaining ring 15 by the connecting ring 16. If the filter screen 8 is damaged, it can be removed and replaced separately. Similarly, depending on the actual water quality, different mesh sizes of filter screen 8 can be selected for replacement. After cleaning or replacement, it can be inserted into the outer shell 5 and fixed by the first screw 7. Finally, the outer shell 5 is sealed by the sealing cover 6 and the sealing plug 17.

[0027] The easy-to-remove design of the filter 8 allows for regular cleaning and replacement of the outer casing 5.

[0028] Second implementation method:

[0029] Figure 2 and Figures 4-7 The retaining ring 15 is fixedly connected to a slide rail 10 located on the outer ring of the filter screen 8 at one end. A slider 11 is slidably connected to the slide rail 10. A scraper 14 is detachably connected to the slider 11 and contacts the surface of the filter screen 8. A locking block is fixedly connected to the slider 11 at the other end away from the slide rail 10. A slot is opened at the end of the scraper 14 near the slider 11, and the locking block and the slot are locked together and fixed by a second screw 18. A groove 12 is opened at the other end of the retaining ring 15 away from the filter screen 8. A magnetic block 13 is slidably connected in the groove 12. Both the groove 12 and the slider 11 are designed with strong magnetic material. After the magnetic block 13 is locked with the groove 12, it attracts the slider 11. A handle 19 is fixedly connected to the other end of the magnetic block 13 away from the groove 12. An anti-slip sleeve is covered on the surface of the handle 19.

[0030] Working principle: Based on the above, when the filter screen 8 does not need to be replaced, the scraper 14 can be used to clean the filter screen 8 directly. The sealing cover 6 can be opened, and the magnetic block 13 can be inserted into the slide groove 12 to attract each other with the slider 11, thereby positioning the magnetic block 13. Then, hold the handle 19 to drive the magnetic block 13 to rotate in the slide groove 12, which simultaneously drives the scraper 14 to rotate on the slide rail 10, which can rub against the surface of the filter screen 8 for cleaning. At the same time, water enters from the water inlet 2 and flows into the filter port 4 to rinse the surface of the filter screen 8. When the filter screen 8 is severely worn due to long-term use, the second screw 18 can be turned to remove the scraper 14 from the slider 11 for replacement.

[0031] By setting up the scraper 14, the filter screen 8 can be easily cleaned without disassembling it.

[0032] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A water circuit solenoid valve with a detachable filter screen, comprising a solenoid valve (1) having an inlet (2) and an outlet (3), characterized in that: The bottom wall of the inlet (2) is fixedly connected to a filter port (4) communicating with the inside of the inlet (2). A filter mechanism is installed inside the filter port (4). The filter mechanism includes a housing (5) with a sealing ring threaded to the inner wall of the filter port (4). A filter screen (8) is detachably connected inside the housing (5). A connecting ring (16) is fixedly connected to the bottom end of the filter screen (8), and the inner diameter of the connecting ring (16) is equal to that of the filter screen (8). The surface of the connecting ring (16) is threaded with... A retaining ring (15) is provided, and the outer diameter of the retaining ring (15) is equal to the inner diameter of the outer shell (5). The retaining ring (15) and the side wall of the outer shell (5) are provided with a plurality of corresponding screw holes (9) at equal intervals. The screw holes (9) are threaded with a first screw (7). The bottom end of the outer shell (5) is threaded with a sealing cap (6). The sealing cap (6) is fixedly connected with a sealing plug (17) that engages with the inner surface of the outer shell (5). The surface of the filter mechanism located inside the outer shell (5) is coated with an anti-rust coating.

2. The water circuit solenoid valve with a detachable filter screen according to claim 1, characterized in that: The retaining ring (15) is fixedly connected to a slide rail (10) located on the outer ring of the filter screen (8) at one end near the filter screen (8). A slider (11) is slidably connected on the slide rail (10). A scraper (14) is detachably connected on the slider (11), and the scraper (14) is in contact with the surface of the filter screen (8).

3. A water circuit solenoid valve with a detachable filter screen according to claim 2, characterized in that: The slider (11) is fixedly connected to a card block at the end away from the slide rail (10), and the scraper (14) is provided with a card slot at the end near the slider (11), and the card block and the card slot are locked together and fixed by the second screw (18).

4. A water circuit solenoid valve with a detachable filter screen according to claim 2, characterized in that: The retaining ring (15) has a groove (12) at the end away from the filter screen (8). A magnetic block (13) is slidably connected in the groove (12). When the filter screen (8) does not need to be replaced, the sealing cover (6) can be opened, and the magnetic block (13) can be inserted into the groove (12) and attracted to the slider (11) to position the magnetic block (13). Then, the handle (19) is held to drive the magnetic block (13) to rotate in the groove (12), which simultaneously drives the scraper (14) to rotate on the slide rail (10) to rub against the surface of the filter screen (8) for cleaning. At the same time, water enters from the inlet (2) and flows into the filter port (4) to rinse the surface of the filter screen (8).

5. A water circuit solenoid valve with a detachable filter screen according to claim 4, characterized in that: Both the slide (12) and the slider (11) are made of strong magnetic material, and the magnetic block (13) attracts the slider (11) after it engages with the slide (12).

6. A water circuit solenoid valve with a detachable filter screen according to claim 5, characterized in that: The magnetic block (13) is fixedly connected to a handle (19) at the end away from the slide groove (12), and the surface of the handle (19) is covered with an anti-slip sleeve.

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