Overflow backwash bidirectional control device

Abstract

The utility model discloses a kind of overflow backwash type two-way control device, it is related to overflow backwash technical field, including valve box, the inside bottom end of valve box is equipped with water collecting tank, the top of water collecting tank is equipped with inlet, the outside of valve box is equipped with first flush pipe and second flush pipe respectively, the top of first flush pipe and second flush pipe is equipped with switch valve. The utility model uses above-mentioned structure, due to the existence of first clamping block, second clamping block can be sent into circular groove, second clamping block is adjusted to not corresponding angle with second clamping groove, and then the position of protective cover plate can be effectively limited, to avoid displacement of protective cover plate, when protective cover plate needs to be disassembled in later period, first clamping block is extracted directly after second clamping block is adjusted to corresponding angle with second clamping groove, which achieves the convenience of disassembling protective cover plate in later period, and also effectively improves the cleaning efficiency of valve box interior subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of overflow backwashing technology, and specifically relates to an overflow backwashing bidirectional control device. Background Technology

[0002] The overflow backwash bidirectional control device is an innovative piece of equipment integrating bidirectional fluid switching, overflow protection, and automatic backwashing functions. Flexible fluid direction control is achieved by moving the valve stem in conjunction with the upper and lower valve plugs; the built-in overflow channel provides pressure relief and overload protection, while the backwash siphon pipe, combined with a filter, periodically removes impurities to prevent clogging. Its compact structure and convenient operation make it widely applicable in greywater recycling, hydraulic systems, and industrial water treatment, significantly improving system stability and maintenance efficiency.

[0003] However, existing backwash control devices still have some shortcomings. In order not to hinder normal use, users usually clean or maintain the inside of the device regularly. In the past, the protective cover was usually fixed by threaded connection or welding. Although it had a good fixing effect, it was inconvenient to disassemble and also affected the cleaning efficiency inside the device, which was very inconvenient. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an overflow backwashing bidirectional control device to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An overflow backwashing bidirectional control device includes a valve box, a water collection tank installed at the bottom inner side of the valve box, an inlet at the top of the water collection tank, a first flushing pipe and a second flushing pipe respectively provided on the outer side of the valve box, each with a switch valve at its top, an inlet pipe at the top of the valve box, the inlet pipe corresponding to the inlet position, a filter plate slidably connected to the inner wall of the valve box, a protective cover plate snapped onto the front side of the valve box, a fixing block fixedly connected to one side of the protective cover plate, a first slot opening on the front side of the fixing block extending into the valve box, a second slot opening on the inner wall of the first slot, a circular groove opening on the inner side of the first slot, a first locking block snapping onto the inner side of the first slot, a second locking block fixedly connected to the outer side of the first locking block matching the second slot, and the second locking block snapping onto the inner side of the circular groove.

[0007] As a preferred technical solution, a sliding groove matching the filter plate is provided on the inner wall of the valve box. The filter plate is slidably connected to the inner wall of the valve box through the sliding groove, and the position of the filter plate corresponds to the position of the water inlet.

[0008] As a preferred technical solution, a magnetic block is fixedly connected to the bottom of the filter plate, a groove is provided on the inner wall of the valve box, a magnet is fixedly connected to the inner side of the groove, the magnet covers the inner side of the groove, and one side of the magnet is in contact with the other side of the magnetic block.

[0009] As a preferred technical solution, a retaining spring that matches the second retaining block is installed on the inner side of the circular groove. The rear side of the second retaining block is engaged with the front side of the retaining spring. The second retaining block is engaged with the inner side of the circular groove through the retaining spring. A sealing block is fixedly connected to the front side of the first retaining block. The sealing block covers the front side of the first retaining groove. A protrusion is fixedly connected to the front side of the sealing block. The shape of the corner of the protrusion is arc-shaped.

[0010] As a preferred technical solution, a positioning groove is provided on the front side of the valve box. The positioning groove is provided on the four sides near the corners of the front side of the valve box. A positioning block that matches the positioning groove is fixedly connected to the rear side of the protective cover plate. The positioning block is engaged with the inside of the positioning groove.

[0011] As a preferred technical solution, a sealing groove is provided on the front side of the valve box, and a sealing ring that matches the sealing groove is fixedly connected to the rear side of the protective cover plate. The sealing ring covers the inner side of the sealing groove and is made of rubber material.

[0012] As a preferred technical solution, a rectangular opening is provided on the front side of the protective cover, the rectangular opening communicates with the inside of the valve box, a transparent glass is fixedly connected to the inside of the rectangular opening, the transparent glass covers the inside of the rectangular opening, and a handle is fixedly connected to the front side of the protective cover, the handle having an arc-shaped corner.

[0013] In summary, the present invention has the following main advantages:

[0014] Firstly, during use, the inlet pipe facilitates the entry of water, and the filter plate effectively filters the water. The filtered water can enter the water collection tank through the inlet, allowing the user to perform overflow backwashing through the first and second flushing pipes. Due to the presence of the first locking block, the second locking block can be sent into the circular groove. Adjusting the second locking block to an angle that is not directly opposite to the second locking groove can effectively limit the position of the protective cover to prevent displacement. When the protective cover needs to be removed later, first adjust the second locking block to an angle that corresponds to the second locking groove, and then directly pull out the first locking block. This not only facilitates the later disassembly and assembly of the protective cover but also effectively improves the efficiency of subsequent cleaning of the valve box.

[0015] Secondly, due to the presence of the snap ring, the snap ring can further limit the position of the second snap block, thereby effectively improving the stability of the snap block position and also effectively improving the stability of the protective cover position. Due to the presence of the magnet, the magnet's attraction can effectively limit the position of the filter plate to prevent the filter plate from shifting, and at the same time, it will not hinder the user from directly pulling out the filter plate through the slide groove later, so as to clean or maintain the filter plate structure later. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the inner structure of the valve box of this utility model;

[0018] Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A;

[0019] Figure 4 This is a schematic diagram of the first card block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the protective cover structure of this utility model.

[0021] Reference numerals: 1. Valve box; 2. Water collection tank; 3. Water inlet; 4. Water inlet pipe; 5. Filter plate; 6. First flushing pipe; 7. Second flushing pipe; 8. Switch valve; 9. Slide groove; 10. Groove; 11. Magnet; 12. Magnetic block; 13. Sealing groove; 14. Positioning groove; 15. Protective cover plate; 16. Positioning block; 17. Sealing ring; 18. Rectangular opening; 19. Transparent glass; 20. Handle; 21. Fixing block; 22. First slot; 23. Second slot; 24. Circular groove; 25. Snap ring; 26. First locking block; 27. Second locking block; 28. Sealing block; 29. ​​Protrusion. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 5This embodiment of an overflow backwash bidirectional control device includes a valve box 1. A water collection tank 2 is installed at the bottom inner side of the valve box 1. A water inlet 3 is provided at the top of the water collection tank 2. A first flushing pipe 6 and a second flushing pipe 7 are respectively provided on the outer side of the valve box 1. A switch valve 8 is provided at the top of both the first flushing pipe 6 and the second flushing pipe 7. A water inlet pipe 4 is provided at the top of the valve box 1, and the position of the water inlet pipe 4 corresponds to the position of the water inlet 3. A filter plate 5 is slidably connected to the inner wall of the valve box 1. A protective cover plate 15 is snapped onto the front side of the valve box 1. A fixing block 21 is fixedly connected to one side of the protective cover plate 15. A first slot 22 is opened on the front side of the fixing block 21, and the first slot 22 extends into the interior of the valve box 1. A second slot 23 is opened on the inner wall of the first slot 22. A circular groove 24 is opened on the inner side of the first slot 22. A first locking block 26 is snapped onto the inner side of the first slot 22. A second locking block 23 is fixedly connected to the outer side of the first locking block 26. The second locking block 27, which matches the locking slot 23, is engaged inside the circular groove 24. In use, water is introduced through the inlet pipe 4, and the filter plate 5 can effectively filter the water. The filtered water can enter the water collection tank 2 through the inlet 3, so that the user can perform overflow backwashing through the first flushing pipe 6 and the second flushing pipe 7. Due to the presence of the first locking block 26, the second locking block 27 can be sent into the circular groove 24. The second locking block 27 is adjusted to an angle that is not corresponding to the second locking slot 23, thereby effectively limiting the position of the protective cover 15 to prevent the protective cover 15 from shifting. When the protective cover 15 needs to be removed later, the second locking block 27 is first adjusted to an angle corresponding to the second locking slot 23, and then the first locking block 26 can be pulled out directly. This not only facilitates the later disassembly and assembly of the protective cover 15, but also effectively improves the efficiency of subsequent cleaning of the inside of the valve box 1.

[0024] refer to Figures 1 to 3 The inner wall of the valve box 1 is provided with a sliding groove 9 that matches the filter plate 5. The filter plate 5 is slidably connected to the inner wall of the valve box 1 through the sliding groove 9. The position of the filter plate 5 corresponds to the position of the water inlet 3. A magnetic block 12 is fixedly connected to the bottom end of the filter plate 5. A groove 10 is provided on the inner wall of the valve box 1. A magnet 11 is fixedly connected to the inner side of the groove 10. The magnet 11 covers the inner side of the groove 10. One side of the magnet 11 is in contact with the other side of the magnetic block 12. Due to the presence of the magnet 11, the attraction of the magnet 11 can effectively limit the position of the filter plate 5 to prevent the filter plate 5 from shifting. At the same time, it will not hinder the user from directly pulling out the filter plate 5 through the sliding groove 9 later for subsequent cleaning or maintenance of the filter plate 5 structure.

[0025] refer to Figures 1 to 5A retaining spring 25 matching the second retaining block 27 is installed on the inner side of the circular groove 24. The rear side of the second retaining block 27 is engaged with the front side of the retaining spring 25. The second retaining block 27 is engaged with the inner side of the circular groove 24 through the retaining spring 25. A sealing block 28 is fixedly connected to the front side of the first retaining block 26. The sealing block 28 covers the front side of the first retaining groove 22. A protrusion 29 is fixedly connected to the front side of the sealing block 28. The protrusion 29 has an arc-shaped corner. Due to the presence of the retaining spring 25, the engagement of the retaining spring 25 can further limit the position of the second retaining block 27, thereby effectively improving the stability of the engagement of the second retaining block 27 and also effectively improving the stability of the engagement of the protective cover plate 15.

[0026] refer to Figures 1 to 5 A positioning groove 14 is provided on the front side of the valve box 1. The positioning groove 14 is located on the four sides of the front side of the valve box 1 near the corner. A positioning block 16 matching the positioning groove 14 is fixedly connected to the rear side of the protective cover plate 15. The positioning block 16 is snapped into the inner side of the positioning groove 14. A sealing groove 13 is provided on the front side of the valve box 1. A sealing ring 17 matching the sealing groove 13 is fixedly connected to the rear side of the protective cover plate 15. The sealing ring 17 covers the inner side of the sealing groove 13. The sealing ring 17 is made of rubber material. Due to the presence of the positioning block 16, the snapping of the positioning block 16 can limit the position of the protective cover plate 15 in advance, thereby further improving the stability of the installation of the protective cover plate 15. At the same time, it also effectively improves the accuracy of the snapping of the first snapping block 26. The sealing ring 17 can effectively seal the connection point of the protective cover plate 15, and can play a good dustproof sealing role.

[0027] refer to Figure 1 A rectangular opening 18 is provided on the front side of the protective cover 15. The rectangular opening 18 communicates with the inside of the valve box 1. A transparent glass 19 is fixedly connected to the inside of the rectangular opening 18, covering the inside of the rectangular opening 18. A handle 20 is fixedly connected to the front side of the protective cover 15. The handle 20 has rounded corners. Due to the opening of the rectangular opening 18, the user can directly view the inside of the valve box 1 through the transparent glass 19 without opening the protective cover 15, which is conducive to the user's constant observation of the operation status inside the valve box 1.

[0028] Operating principle and advantages: During use, water is introduced through the inlet pipe 4. The filter plate 5 effectively filters the water. The filtered water enters the collection tank 2 through the inlet 3, allowing the user to perform overflow backwashing through the first flushing pipe 6 and the second flushing pipe 7. Due to the presence of the first locking block 26, the second locking block 27 can be inserted into the circular groove 24. Adjusting the second locking block 27 to a non-corresponding angle with the second locking groove 23 effectively limits the position of the protective cover 15, preventing displacement. When the protective cover 15 needs to be removed later, first adjust the second locking block 27 to a corresponding angle with the second locking groove 23, and then directly pull out the first locking block 26. This facilitates the later disassembly and assembly of the protective cover 15 and also effectively improves the efficiency of subsequent cleaning of the valve box 1. Due to the presence of the magnet 11, the attraction of the magnet 11 effectively limits the position of the filter plate 5, preventing displacement. The displacement does not hinder the user from directly pulling out the filter plate 5 through the slide groove 9 for subsequent cleaning or maintenance of the filter plate 5 structure. Due to the presence of the snap ring 25, the snapping of the snap ring 25 can further limit the position of the second snap block 27, thereby effectively improving the stability of the snapping of the second snap block 27 and also effectively improving the stability of the snapping of the protective cover plate 15. Due to the presence of the positioning block 16, the snapping of the positioning block 16 can limit the position of the protective cover plate 15 in advance, thereby further improving the stability of the installation of the protective cover plate 15 and also effectively improving the accuracy of the snapping of the first snap block 26. The sealing ring 17 can effectively seal the connection point of the protective cover plate 15, providing a good dustproof sealing effect. Due to the opening of the rectangular opening 18, the user can directly view the inside of the valve box 1 through the transparent glass 19 without opening the protective cover plate 15, thereby improving the safety of the valve box 1.

Claims

1. An overflow backflushing bidirectional control device, comprising a valve box (1), characterized in that: A water collection tank (2) is installed at the bottom inner side of the valve box (1). An inlet (3) is located at the top of the water collection tank (2). A first flushing pipe (6) and a second flushing pipe (7) are respectively provided on the outer side of the valve box (1). A switch valve (8) is located at the top of both the first flushing pipe (6) and the second flushing pipe (7). An inlet pipe (4) is located at the top of the valve box (1). The position of the inlet pipe (4) corresponds to the position of the inlet (3). A filter plate (5) is slidably connected to the inner wall of the valve box (1). A protective cover plate (15) is snapped onto the front side of the valve box (1). A fixing block (21) is fixedly connected to one side of the valve box (15). A first slot (22) is provided on the front side of the fixing block (21). The first slot (22) extends into the valve box (1). A second slot (23) is provided on the inner wall of the first slot (22). A circular groove (24) is provided on the inner side of the first slot (22). A first locking block (26) is engaged on the inner side of the first slot (22). A second locking block (27) that matches the second slot (23) is fixedly connected to the outer side of the first locking block (26). The second locking block (27) is engaged on the inner side of the circular groove (24).

2. The overflow backwashing bidirectional control device according to claim 1, characterized in that: The inner wall of the valve box (1) is provided with a sliding groove (9) that matches the filter plate (5). The filter plate (5) is slidably connected to the inner wall of the valve box (1) through the sliding groove (9). The position of the filter plate (5) corresponds to the position of the water inlet (3).

3. The overflow backwashing bidirectional control device according to claim 2, characterized in that: A magnetic block (12) is fixedly connected to the bottom end of the filter plate (5). A groove (10) is provided on the inner wall of the valve box (1). A magnet (11) is fixedly connected to the inner side of the groove (10). The magnet (11) covers the inner side of the groove (10). One side of the magnet (11) is in contact with the other side of the magnetic block (12).

4. The overflow backwashing bidirectional control device according to claim 1, characterized in that: A retaining ring (25) matching the second retaining block (27) is installed on the inner side of the circular groove (24). The rear side of the second retaining block (27) is engaged with the front side of the retaining ring (25). The second retaining block (27) is engaged with the inner side of the circular groove (24) through the retaining ring (25). A sealing block (28) is fixedly connected to the front side of the first retaining block (26). The sealing block (28) covers the front side of the first retaining groove (22). A protrusion (29) is fixedly connected to the front side of the sealing block (28). The shape of the corner of the protrusion (29) is arc-shaped.

5. The overflow backwashing bidirectional control device according to claim 1, characterized in that: The valve box (1) has a positioning groove (14) on the front side. The positioning groove (14) is located on the four sides of the front corner of the valve box (1). The protective cover (15) is fixedly connected to a positioning block (16) that matches the positioning groove (14). The positioning block (16) is engaged with the inside of the positioning groove (14).

6. The overflow backwashing bidirectional control device according to claim 5, characterized in that: The valve box (1) has a sealing groove (13) on the front side, and a sealing ring (17) matching the sealing groove (13) is fixedly connected to the rear side of the protective cover plate (15). The sealing ring (17) covers the inner side of the sealing groove (13) and is made of rubber material.

7. The overflow backwashing bidirectional control device according to claim 1, characterized in that: The protective cover (15) has a rectangular opening (18) on its front side, which communicates with the inside of the valve box (1). A transparent glass (19) is fixedly connected to the inside of the rectangular opening (18), which covers the inside of the rectangular opening (18). A handle (20) is fixedly connected to the front side of the protective cover (15), and the handle (20) has an arc-shaped corner.

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