Gate pump with backwashing device
By introducing a backwashing device into the gate pump, the dirt on the filter screen is automatically cleaned, solving the problem of low efficiency of manual cleaning in the existing technology and achieving a high-efficiency and water-saving filter screen cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-24
AI Technical Summary
The existing gate pump's filter screen requires regular manual cleaning, resulting in low cleaning efficiency and affecting its overall performance.
A gate pump with a backwashing device was designed, including a water pump, a filter, a water storage tank, a high-pressure water pump, a water spray pipe, and a moving device. It automatically cleans the dirt on the filter screen through backwashing, thereby improving cleaning efficiency.
It achieves efficient and automatic cleaning of dirt on the filter screen, avoids water waste, simplifies the replacement and cleaning process of the filter screen, and improves the efficiency of the gate pump.
Smart Images

Figure CN224025855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated gate pump technology, specifically to a gate pump with a backwashing device. Background Technology
[0002] A gate pump, also known as a gate water pump, is a type of pump that controls water flow by opening and closing a gate. Its main features are simple structure and easy maintenance, making it suitable for applications requiring frequent opening and closing. Gate pumps achieve precise control of water flow through the opening and closing of the gate, thus meeting various needs. In practical applications, gate pumps are commonly used in irrigation, drainage, and industrial water treatment. To prevent clogging, filters are often used to clean impurities from the wastewater. However, filters require regular cleaning, which is mostly done manually, resulting in low cleaning efficiency and affecting the overall efficiency of the integrated gate pump. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a gate pump with a backwashing device. The backwashing device can backwash the dirt on the anti-clogging filter screen, thereby improving the efficiency of cleaning the anti-clogging filter screen.
[0004] The technical solution adopted in this utility model is a gate pump with a backwashing device, including a mounting base. The mounting base is equipped with a first sliding support, a second sliding support, and a water pump. The top ends of the first and second sliding supports are connected to a supporting top plate. The supporting top plate is equipped with a drive device, a filter, a water storage tank, and a bottom filter plate loading and unloading device. The drive device consists of two identical sets, each connected to a second lifting ring fixed to the gate pump body and the mounting plate frame. The gate pump body is slidably connected to the second sliding supports on both sides, and the mounting plate frame is slidably connected to the first sliding supports on both sides. An anti-clogging filter screen is installed in the middle of the mounting plate frame. Limiting rods are connected to both sides of the bottom, and the limiting rods are inserted into the bottom filter plate. A bottom filter screen is installed in the hollow position in the middle of the bottom filter plate. The water pump is connected to one end of the water pump pipe, and the other end of the water pump pipe passes through the supporting top plate and connects to the filter. The filter is connected to the water storage tank through the backwash return pipe. The water storage tank is equipped with a high-pressure water pump, which is connected to the first backwash outlet pipe. The first backwash outlet pipe is connected to the second backwash outlet pipe through a telescopic hose. The second backwash outlet pipe is connected to the spray pipe. The spray pipe has a nozzle on the side facing the back of the anti-clogging filter screen, and the other side of the spray pipe is connected to the moving device through the spray pipe support rod.
[0005] The aforementioned moving device consists of two sets with the same structure, including a motor support rod fixed to a supporting top plate. The motor support rod is connected to a first motor, and the first motor is connected to a first threaded rod. The first threaded rod passes through the supporting top plate, and the portion passing through the supporting top plate is threadedly connected to a first moving block. One side of the first moving block is connected to a nozzle support rod, and the other side of the first moving block is connected to a first sliding rod. The first sliding rod is connected to a first slider located in a first sliding groove. The top of the first sliding groove is fixed to the bottom of the supporting top plate, and a transverse connecting rod connects the two first moving blocks.
[0006] The bottom filter plate loading and unloading device consists of two sets with the same structure, including a motor mounting base and a support rod fixed to the top support plate. A second motor is mounted on the motor mounting base. The second motor is connected to a second threaded rod. The second threaded rod is threadedly connected to a second moving block. The top of the second moving block is connected to a second sliding rod. The second sliding rod is connected to a second slider located in a second sliding groove. The second sliding groove is fixed to the bottom of the support rod. The bottom of the second moving block is connected to a short connecting rod. The short connecting rod is connected to one end of a long moving rod. The other end of the long moving rod passes through a limiting elongated hole on the top support plate and is connected to a hook. The second motor is a stepper motor.
[0007] The drive device includes a motor support and a bearing support fixed on the supporting top plate. A lifting motor is fixed on the motor support. The lifting motor is connected to a rotating shaft. The tail end of the rotating shaft is connected to a bearing fixed on the bearing support. Two symmetrically distributed drums are fixed on the rotating shaft. A lifting rope is wound on the drums. The lifting rope passes through the supporting top plate and is connected to a second lifting ring. The lifting motor is a stepper motor.
[0008] The bottom filter plate has a first lifting ring fixed on the top of both sides, and a limiting slot is provided inside both sides of the bottom filter plate, into which a limiting rod is inserted.
[0009] The first backwash outlet pipe passes through the supporting top plate.
[0010] The first motor is a reversible motor.
[0011] The beneficial effects of this utility model are as follows: This utility model is equipped with a water pump, a water pumping pipe, a filter, a backwash return pipe, a water storage tank, a first backwash outlet pipe, a telescopic hose, a second backwash outlet pipe, a spray pipe, and a nozzle. It can pump, filter, and store the water flowing through the gate pump, and can backwash the anti-clogging filter screen to remove dirt from it. The spray pipe and nozzle can move up and down reciprocally under the action of the moving device. Compared with the traditional manual cleaning method, this backwashing device has the advantages of high efficiency and good effect.
[0012] In this invention, a limiting rod is provided at the bottom of the mounting plate frame. The limiting rod is inserted into the bottom filter plate. A bottom filter screen is provided in the middle of the bottom filter plate. The bottom filter screen allows the backwash water to flow back into the water flow and allows the flushed dirt to remain on the bottom filter screen. This avoids the waste of water resources and collects the dirt flushed away by the backwash, which is beneficial for subsequent treatment of the dirt.
[0013] In this utility model, a bottom filter plate loading and unloading device is provided. After the anti-clogging filter screen is cleaned, the hook in the bottom filter plate loading and unloading device can be hung on the first lifting ring. Then, through the combined action of the second motor, the second threaded rod, the second moving block, the short connecting rod and the moving long rod, the bottom filter plate can be moved forward and the limiting slot can be moved away from the limiting insertion rod, so that the bottom filter plate can be transported away and cleaned by an external forklift. It is also convenient to replace the bottom filter plate and bottom filter screen. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model.
[0015] Figure 2 This is a top view of the bottom filter screen and bottom filter plate of this utility model.
[0016] Figure 3 This is a partial structural diagram of the backwashing device of this utility model.
[0017] Figure 4 This is a front view schematic diagram of the driving device of this utility model.
[0018] Figure 5 This is a front view schematic diagram of the limiting slot and the bottom filter plate of this utility model.
[0019] Figure 6 This is a front view schematic diagram of the mobile device part of this utility model.
[0020] In the diagram: 1. Mounting base; 2. Bottom filter plate; 3. Limiting rod; 4. First lifting ring; 5. First sliding support column; 6. Second sliding support column; 7. Gate pump body; 8. First sliding groove; 9. Transverse connecting rod; 10. First sliding rod; 11. First slider; 12. First threaded rod; 13. Motor support rod; 14. First motor; 15. First moving block; 16. Spray pipe support rod; 17. Spray pipe; 18. Nozzle; 19. Water storage tank; 20. Motor support; 21. Rotating shaft; 22. Drum; 23. Anti-clogging filter screen; 24. Mounting plate frame; 25. Second lifting ring; 26. Lifting... 27. Lowering rope, 28. Hook, 29. Moving long rod, 30. Short connecting rod, 31. Second threaded rod, 32. Second motor, 33. Second slider, 34. Second sliding rod, 35. Second sliding block, 36. Second sliding groove, 37. Support rod, 38. Backwash return pipe, 39. Filter, 40. Motor mounting base, 41. Support top plate, 42. Pump pipe, 43. Water pump, 44. Bearing support, 45. Bearing, 46. Lifting motor, 47. Limit slot, 48. Bottom filter screen, 49. Telescopic hose, 50. First backwash outlet pipe, 61. Second backwash outlet pipe. Detailed Implementation
[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0022] Referring to the accompanying drawings, a gate pump with a backwashing device includes a mounting base 1. The mounting base 1 is provided with a first sliding support column 5, a second sliding support column 6, and a water pump 42. The top ends of the first sliding support column 5 and the second sliding support column 6 are connected to a supporting top plate 40. The supporting top plate 40 is provided with a drive device, a filter 38, a water storage tank 19, and a bottom filter plate loading and unloading device. The drive device consists of two sets of identical structures, each connected to a second lifting ring 25 fixed to the gate pump body 7 and the mounting frame 24, respectively. The gate pump body 7 is slidably connected to the second sliding support columns 6 on both sides, and the mounting frame 24 is slidably connected to the first sliding support columns 5 on both sides. An anti-clogging filter screen 23 is installed in the middle of the mounting frame 24, and limiters are connected to both sides of the bottom of the mounting frame 24. Insert rod 3, the limiting insert rod 3 is inserted into the bottom filter plate 2, the bottom filter plate 2 has a bottom filter screen 47 installed in the hollow position in the middle, the water pump 42 is connected to one end of the water pumping pipe 41, the other end of the water pumping pipe 41 passes through the supporting top plate 40 and is connected to the filter 38, the filter 38 is connected to the water storage tank 19 through the backwash return pipe 37, the water storage tank 19 is equipped with a high pressure water pump, the high pressure water pump is connected to the first backwash outlet pipe 49, the first backwash outlet pipe 49 is connected to the second backwash outlet pipe 50 through the telescopic hose 48, the second backwash outlet pipe 50 is connected to the spray pipe 17, the spray pipe 17 has a nozzle 18 on the side facing the back of the anti-clogging filter screen 23, and the other side of the spray pipe 17 is connected to the moving device through the spray pipe support rod 16.
[0023] The aforementioned moving device consists of two sets with the same structure, including a motor support rod 13 fixed on the supporting top plate 40. The motor support rod 13 is connected to a first motor 14, and the first motor 14 is connected to a first threaded rod 12. The first threaded rod 12 passes through the supporting top plate 40, and the portion passing through the supporting top plate 40 is threadedly connected to a first moving block 15. One side of the first moving block 15 is connected to a nozzle support rod 16, and the other side of the first moving block 15 is connected to a first sliding rod 10. The first sliding rod 10 is connected to a first slider 11 located in a first sliding groove 8. The top end of the first sliding groove 8 is fixed to the bottom of the supporting top plate 40, and a transverse connecting rod 9 connects the two first moving blocks 15.
[0024] The bottom filter plate loading and unloading device consists of two sets with the same structure, including a motor mounting base 39 and a support rod 36 fixed on the supporting top plate 40. A second motor 31 is mounted on the motor mounting base 39. The second motor 31 is connected to a second threaded rod 30. The second threaded rod 30 is threadedly connected to a second moving block 34. The top end of the second moving block 34 is connected to a second sliding rod 33. The second sliding rod 33 is connected to a second sliding block 32 located in a second sliding groove 35. The second sliding groove 35 is fixed to the bottom of the support rod 36. The bottom end of the second moving block 34 is connected to a short connecting rod 29. The short connecting rod 29 is connected to one end of a moving long rod 28. The other end of the moving long rod 28 passes through a limiting elongated hole on the supporting top plate 40 and is connected to a hook 27. The second motor 31 is a stepper motor.
[0025] The drive device includes a motor support 20 and a bearing support 43 fixed on the supporting top plate 40. A lifting motor 45 is fixed on the motor support 20. The lifting motor 45 is connected to a rotating shaft 21. The tail end of the rotating shaft 21 is connected to a bearing 44 fixed on the bearing support 43. Two symmetrically distributed drums 22 are fixed on the rotating shaft 21. A lifting rope 26 is wound on the drums 22. The lifting rope 26 passes through the supporting top plate 40 and connects to a second lifting ring 25. The lifting motor 45 is a stepper motor.
[0026] The bottom filter plate 2 has a first lifting ring 4 fixed on the top of both sides. The bottom filter plate 2 has a limiting slot 46 inside both sides, and a limiting rod 3 is inserted into the limiting slot 46.
[0027] The first backwash outlet pipe 49 passes through the supporting top plate 40.
[0028] The first motor 14 is a reversible motor.
[0029] When this gate pump with backwashing device is in use, the water flow first passes through the anti-clogging filter screen 23 and then flows to the gate pump body 7. The anti-clogging filter screen 23 can filter the dirt in the water flow. When there is a lot of dirt attached to the anti-clogging filter screen 23, the lifting motor 45 is started. The lifting motor 45 drives the rotating shaft 21 to rotate, which makes the drum 22 rotate. The rotation of the drum 22 makes the lifting rope 26 wind up, which makes the mounting frame 24 rise. The rise of the mounting frame 24 makes the anti-clogging filter screen 23 rise. When the bottom filter plate 2 rises to the position of the hook 27, the lifting motor 45 is turned off and the hook 27 is hung on the first lifting ring 4.
[0030] After the anti-clogging filter screen 23 has risen, the water pump 42 is started. The water pump 42 can pump the flowing water and make the pumped water enter the filter 38 through the water pumping pipe 41 for filtration. The filtered water will flow into the water storage tank 19 through the backwash return pipe 37. Then, the high-pressure water pump in the water storage tank 19 is turned on. The high-pressure water pump can make the water in the water storage tank 19 pass through the first backwash outlet pipe 49, the telescopic hose 48, the second backwash outlet pipe 50, the spray pipe 17 and the nozzle 18 in sequence. The water is sprayed out and backwashed on the anti-clogging filter screen 23. At the same time, the first motor 14 is started. The first motor 14 drives the first threaded rod 12 to rotate, causing the first moving block 15 to move up and down repeatedly. The first moving block 15 can drive the spray pipe support rod 16 to move, causing the spray pipe 17 to move up and down repeatedly, thereby performing a comprehensive backwash on the anti-clogging filter screen 23. The washed-off dirt can remain on the bottom filter screen 47. At the same time, the backwash water will flow out from the bottom filter screen 47 and flow back into the water flow below.
[0031] After the backwashing of the anti-clogging filter screen 23 is completed, the second motor 31 is started. The second motor 31 drives the second threaded rod 30 to rotate, causing the second moving block 34 to move forward. The second moving block 34 then drives the short connecting rod 29 to move forward, causing the moving long rod 28 to move forward within the range of the limiting long strip hole. The moving long rod 28 can then drive the hook 27 to move forward, causing the first lifting ring 4 to move forward, thereby moving the bottom filter plate 2 forward. After the bottom filter plate 2 leaves the limiting insertion rod 3, the bottom of the bottom filter plate 2 is supported by a forklift, and the hook 27 is removed from the first lifting ring 4. The bottom filter plate 2 can then be moved to the cleaning area for cleaning. At the same time, a new bottom filter plate 2 is taken out, and the new bottom filter plate 2 is inserted into the limiting insertion rod 3 through the bottom filter plate loading and unloading device, thus completing the replacement of the bottom filter plate 2.
[0032] This utility model includes a water pump 42, a water pumping pipe 41, a filter 38, a backwash return pipe 37, a water storage tank 19, a first backwash outlet pipe 49, a telescopic hose 48, a second backwash outlet pipe 50, a spray pipe 17, and a nozzle 18. It can pump, filter, and store the water flowing through the gate pump, and can backwash the anti-clogging filter screen 23 to remove dirt from it. The spray pipe 17 and the nozzle 18 can move up and down reciprocally under the action of the moving device. Compared with the traditional manual cleaning method, this backwashing device has the advantages of high efficiency and good effect.
[0033] In this utility model, a limiting rod 3 is provided on the bottom end of the mounting plate frame 24. The limiting rod 3 is inserted into the bottom filter plate 2. A bottom filter screen 47 is provided in the middle of the bottom filter plate 2. The bottom filter screen 47 allows the backwash water to flow back into the water flow and allows the flushed dirt to remain on the bottom filter screen 47. This avoids the waste of water resources and collects the dirt flushed away by backwashing, which is beneficial for subsequent treatment of dirt.
[0034] In this utility model, a bottom filter plate loading and unloading device is provided. After the anti-clogging filter screen 23 is cleaned, the hook 27 in the bottom filter plate loading and unloading device can be hung on the first lifting ring 4. Then, through the combined action of the second motor 31, the second threaded rod 30, the second moving block 34, the short connecting rod 29 and the moving long rod 28, the bottom filter plate 2 can be moved forward and the limiting slot 46 can be moved away from the limiting insertion rod 3. This makes it easy to transport the bottom filter plate 2 away and clean it by an external forklift, and also makes it easy to replace the new bottom filter plate 2 and the bottom filter screen 47.
[0035] The above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A gate pump with a backwashing device, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a first sliding support column (5), a second sliding support column (6) and a water pump (42). The top ends of the first sliding support column (5) and the second sliding support column (6) are connected to a support plate (40). The support plate (40) is provided with a drive device, a filter (38), a water storage tank (19) and a bottom filter plate loading and unloading device. The drive device consists of two sets of the same structure and is respectively connected to the second lifting ring (25) fixed on the gate pump body (7) and the mounting plate frame (24). The gate pump body (7) is slidably connected to the second sliding support columns (6) on both sides. The mounting plate frame (24) is slidably connected to the first sliding support columns (5) on both sides. An anti-clogging filter screen (23) is installed in the middle of the mounting plate frame (24). Limiting rods (3) are respectively connected to the bottom two sides of the mounting plate frame (24). The limiting rods (3) are inserted into the bottom. Inside the bottom filter plate (2), a bottom filter screen (47) is installed in the hollow position in the middle of the bottom filter plate (2). The water pump (42) is connected to one end of the water pumping pipe (41). The other end of the water pumping pipe (41) passes through the supporting top plate (40) and is connected to the filter (38). The filter (38) is connected to the water storage tank (19) through the backwash return pipe (37). The water storage tank (19) is equipped with a high-pressure water pump. The high-pressure water pump is connected to the first backwash outlet pipe (49). The first backwash outlet pipe (49) is connected to the second backwash outlet pipe (50) through the telescopic hose (48). The second backwash outlet pipe (50) is connected to the spray pipe (17). The spray pipe (17) has a nozzle (18) on the side facing the back of the anti-clogging filter screen (23). The other side of the spray pipe (17) is connected to the moving device through the spray pipe support rod (16).
2. The gate pump with backwashing device according to claim 1, characterized in that: The moving device consists of two sets of the same structure, including a motor support rod (13) fixed on the support top plate (40), the motor support rod (13) connected to the first motor (14), the first motor (14) connected to the first threaded rod (12), the first threaded rod (12) passing through the support top plate (40), and the part passing through the support top plate (40) threadedly connected to the first moving block (15), one side of the first moving block (15) connected to the nozzle support rod (16), the other side of the first moving block (15) connected to the first slide rod (10), the first slide rod (10) connected to the first slider (11) located in the first slide groove (8), the top of the first slide groove (8) fixed to the bottom of the support top plate (40), and a transverse connecting rod (9) connecting the two first moving blocks (15).
3. The gate pump with backwashing device according to claim 1, characterized in that: The bottom filter plate loading and unloading device consists of two sets of the same structure, including a motor mounting base (39) and a support rod (36) fixed on the support top plate (40). A second motor (31) is installed on the motor mounting base (39). The second motor (31) is connected to a second threaded rod (30). The second threaded rod (30) is threadedly connected to a second moving block (34). The top of the second moving block (34) is connected to a second sliding rod (33). The second sliding rod (33) is connected to a second slider (32) located in a second sliding groove (35). The second sliding groove (35) is fixed to the bottom of the support rod (36). The bottom of the second moving block (34) is connected to a short connecting rod (29). The short connecting rod (29) is connected to one end of a moving long rod (28). The other end of the moving long rod (28) passes through a limiting elongated hole on the support top plate (40) and is connected to a hook (27). The second motor (31) is a stepper motor.
4. The gate pump with backflushing device according to claim 1, characterized in that: The drive device includes a motor support (20) and a bearing support (43) fixed on the support top plate (40). A lifting motor (45) is fixed on the motor support (20). The lifting motor (45) is connected to a rotating shaft (21). The tail end of the rotating shaft (21) is connected to a bearing (44) fixed on the bearing support (43). Two symmetrically distributed drums (22) are fixed on the rotating shaft (21). A lifting rope (26) is wound on the drum (22). The lifting rope (26) passes through the support top plate (40) and connects to the second lifting ring (25). The lifting motor (45) is a stepper motor.
5. The gate pump with backflushing device according to claim 1, characterized in that: The bottom filter plate (2) is fixed with a first lifting ring (4) on both sides of the top. The bottom filter plate (2) is provided with a limiting slot (46) on both sides. A limiting rod (3) is inserted into the limiting slot (46).
6. The gate pump with backflushing device according to claim 1, characterized in that: The first backwash outlet pipe (49) passes through the supporting top plate (40).
7. The gate pump with backwashing device according to claim 2, characterized in that: The first motor (14) is a reversible motor.