A submersible pump filtration device

Abstract

This utility model discloses a submersible pump filtration device, belonging to the technical field of submersible pump auxiliary equipment. It includes: a filter barrel, with an inlet pipe connected to the bottom of the filter barrel, a suction hood connected to the bottom end of the inlet pipe, a filter screen detachably installed inside the inlet end of the suction hood, an outlet pipe connected to the outside of the filter barrel, and a filtration assembly detachably installed on the top of the filter barrel. The filtration assembly includes: a mounting plate and a connecting plate, with a coarse filter cylinder and a fine filter cylinder arranged between the mounting plate and the connecting plate. Two sets of sliding frames are slidably installed inside the top of the filter barrel, with a return spring and a locking block fixedly installed on both sides of each set of sliding frames. The two sets of locking blocks are movably inserted into the outside of the mounting plate. Sliding blocks are slidably installed inside each set of sliding frames, and a locking block is fixedly installed at the bottom of each set of sliding blocks. No tools are required; a single person can complete the assembly and disassembly, shortening maintenance time, reducing maintenance costs, improving device efficiency, and achieving a double-locking structure to avoid the risk of filter assembly displacement or detachment.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump auxiliary equipment technology, and in particular to a submersible pump filtration device. Background Technology

[0002] As a core water-lifting device in scenarios such as agricultural irrigation, industrial drainage, domestic water supply, and aquaculture, the operational stability of submersible pumps directly determines the operating efficiency and equipment lifespan. In practical applications, impurities such as silt, weeds, gravel, and suspended particles in the water can easily enter the submersible pump through the inlet, causing impeller wear, waterway blockage, and in severe cases, excessive motor load and burnout, resulting in significant economic losses for users.

[0003] Most filtration devices use only a single-layer fixed filter structure, which cannot filter impurities of different particle sizes in stages. Large particles easily clog the filter, while small particles directly penetrate the filter and enter the pump body, resulting in insufficient filtration effect and equipment protection capability. Although some devices attempt to set up multi-stage filtration, the connection design between the filter cartridge and the inlet pipe is unreasonable, resulting in water flow bypass. Unfiltered water directly enters the outlet pipe, further weakening the purification effect. Existing filter components are mostly connected to the filter cartridge by bolts or welding. Disassembly requires the use of screwdrivers, wrenches, and other tools to disassemble the fasteners one by one, which is difficult and time-consuming to maintain. Therefore, we propose a submersible pump filtration device to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a submersible pump filtration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A submersible pump filtration device includes: a filter barrel, with an inlet pipe connected to the bottom of the filter barrel and a suction hood connected to the bottom end of the inlet pipe. A filter screen is detachably installed inside the inlet end of the suction hood. An outlet pipe is connected to the outside of the filter barrel. A filter assembly is detachably installed on the top of the filter barrel. The filter assembly includes: a mounting plate and a connecting plate. A coarse filter and a fine filter are disposed between the mounting plate and the connecting plate. Two sets of sliding frames are slidably installed inside the top of the filter barrel. A return spring and a locking block are fixedly installed on both sides of the two sets of sliding frames. The two sets of locking blocks are movably inserted into the outside of the mounting plate. A slider is slidably installed inside the two sets of sliding frames. An insert block is fixedly installed at the bottom of the two sets of sliders. The two sets of insert blocks are movably inserted into the filter barrel and slidably installed in the corresponding sliding frames. A pull rod and a return spring are fixedly installed on the top of the two sets of sliders. A handle is fixedly installed on the top of the two sets of pull rods. A sealing ring is provided between the filter barrel and the mounting plate.

[0006] Preferably, the two sets of locking blocks are slidably installed inside the filter barrel, the two sets of insert blocks are movably inserted into the filter barrel and slidably installed in the corresponding sliding frame, the two sets of pull rods are slidably installed on the top of the corresponding sliding frame and the top of the filter barrel, the water inlet pipe is connected to the fine filter cylinder and the coarse filter cylinder through the connecting plate, the inside of the water absorption hood is slidably installed with two sets of moving blocks, each set of moving blocks has a pull rod and a return spring fixedly installed on one side, each set of moving blocks has an insert block fixedly installed on the other side, the two sets of insert blocks are movably inserted into the outside of the filter screen, one end of each set of pull rods is fixedly installed with a handle, and the two sets of pull rods are slidably installed inside the water absorption hood.

[0007] Preferably, the top of the filter barrel is provided with two sets of sliding grooves, the two sets of sliding frames are slidably installed in the corresponding sliding grooves, the other end of the two sets of return springs is fixedly installed on one side of the corresponding sliding groove, the other end of the two sets of return springs is fixedly installed on the inner wall of one side of the corresponding sliding frame, and the two sets of return springs are sleeved on the outside of the corresponding pull rod.

[0008] Preferably, the outer side of the mounting plate has two sets of slots, and the two sets of slots are movably inserted into the corresponding slots.

[0009] Preferably, the inside of the water-absorbing cover is provided with two sets of limiting grooves, the two sets of moving blocks are slidably installed in the corresponding limiting grooves, the other end of the two sets of return springs is fixedly installed on one side of the limiting groove, and the two sets of return springs are sleeved on the outside of the corresponding pull rods.

[0010] Preferably, the outer side of the filter screen has two sets of slots, and the two sets of inserts are movably inserted into the corresponding slots.

[0011] In this utility model, a submersible pump filtration device is described. By connecting the outlet pipe to the inlet of the submersible pump, the submersible pump is started, creating negative pressure in the outlet pipe. This causes water to enter the system through the suction hood at the bottom of the device. The suction hood serves as the water inlet, and its removable filter screen first performs preliminary filtration of the water, preventing large particles from directly entering subsequent pipes or filtration components, thus preventing pipe blockage or a sudden increase in filtration load. The water, after preliminary filtration by the filter screen, is transported upwards through the suction hood and inlet pipe to the filtration components. After further filtration by the coarse and fine filter cartridges, it is discharged through the outlet pipe. The staged filtration design ensures filtration effectiveness while avoiding the problem of easy clogging of a single filter screen, extending the overall service life of the filtration components. By setting a sealing ring, water leakage from the top opening in the filter tank is prevented, ensuring that all water flows through the filtration components. In this utility model, a submersible pump filter device is provided. By setting a pull handle two to drive the corresponding pull rod two and the moving block to move relative to each other, the return spring three retracts, and then the insert block two disengages from the slot to release the lock on the filter screen, which can easily realize the quick disassembly of the filter screen. After replacement or maintenance, the filter screen is reset so that the slot is aligned with the insert block two. Then the pull handle two is released. Under the elastic force of the return spring three, the moving block and the insert block two are reset, and the filter screen is quickly locked. The disassembly and assembly process is extremely simple, easy to learn, greatly reduces the maintenance threshold, shortens downtime, and improves the utilization rate of the device. This utility model features a reasonable structural design. A pull handle moves the corresponding slider and insert block within the sliding frame, causing the second return spring to retract. This releases the insert block from locking the sliding frame. Pulling the two sets of pull handles, via the pull rod and slider, moves the corresponding sliding frame relative to each other, causing the first return spring to retract. This disengages the locking block from the mounting plate's slot, releasing the mounting plate's lock. This allows the filter assembly to be removed from the filter canister for maintenance or replacement. After maintenance or replacement, the filter assembly is inserted back into the filter canister, aligning the slot with the locking block. Releasing the pull handle causes the sliding frame and locking block to reset under the elastic force of the first return spring. The locking block then inserts into the slot to secure the mounting plate. The second return spring's elastic force causes the slider to retract the insert block, locking the sliding frame. This double-locking mechanism eliminates the need for tools, allowing for easy assembly and disassembly by a single person. This reduces maintenance time and costs, improves device efficiency, and prevents the filter assembly from shifting or falling off. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a submersible pump filtration device proposed in this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a submersible pump filtration device proposed in this utility model; Figure 3 This is a cross-sectional structural schematic diagram of the filter assembly of a submersible pump filter device proposed in this utility model. Figure 4 for Figure 2 A magnified view of part A in the middle; Figure 5 for Figure 2 A magnified view of part B in the middle section.

[0013] In the diagram: 1. Filter canister; 2. Inlet pipe; 3. Water suction cover; 4. Outlet pipe; 5. Filter assembly; 51. Mounting plate; 52. Connecting plate; 53. Fine filter cartridge; 54. Coarse filter cartridge; 55. Slot; 6. Filter screen; 7. Sealing ring; 8. Locking block; 9. Sliding frame; 10. Return spring one; 11. Sliding block; 12. Insert block one; 13. Return spring two; 14. Pull rod one; 15. Pull handle one; 16. Insert block two; 17. Moving block; 18. Pull rod two; 19. Return spring three; 20. Pull handle two. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] like Figures 1 to 5 As shown, this submersible pump filtration device includes a filter barrel 1, with an inlet pipe 2 connected to the bottom of the filter barrel 1. A suction hood 3 is connected to the bottom end of the inlet pipe 2. A filter screen 6 is detachably installed inside the inlet end of the suction hood 3. An outlet pipe 4 is connected to the outside of the filter barrel 1. A filter assembly 5 is detachably installed on the top of the filter barrel 1. The filter assembly 5 includes a mounting plate 51 and a connecting plate 52. A coarse filter cartridge 54 and a fine filter cartridge 53 are disposed between the mounting plate 51 and the connecting plate 52. Two sets of sliding frames 9 are slidably installed inside the top of the filter barrel 1. The two sets of sliding frames 9 have... A return spring 10 and a locking block 8 are fixedly installed respectively. The two sets of locking blocks 8 are movably inserted into the outside of the mounting plate 51. Slider 11 is slidably installed inside the two sets of sliding frames 9. Insert block 12 is fixedly installed at the bottom of the two sets of slider 11. The two sets of insert blocks 12 are movably inserted into the filter bucket 1 and slidably installed in the corresponding sliding frame 9. Pull rod 14 and return spring 2 13 are fixedly installed at the top of the two sets of slider 11. Pull handle 15 is fixedly installed at the top of the two sets of pull rod 14. A sealing ring 7 is provided between the filter bucket 1 and the mounting plate 51.

[0016] in, Two sets of locking blocks 8 are slidably installed inside the filter barrel 1. Two sets of insert blocks are movably inserted into the filter barrel 1 and slidably installed in the corresponding sliding frame 9. Two sets of pull rods 14 are slidably installed on the top of the corresponding sliding frame 9 and the top of the filter barrel 1. The water inlet pipe 2 is connected to the fine filter cylinder 53 and the coarse filter cylinder 54 through the connecting plate 52. Two sets of moving blocks 17 are slidably installed inside the water suction cover 3. Pull rods 18 and return springs 19 are fixedly installed on one side of each set of moving blocks 17. Insert blocks 16 are fixedly installed on the other side of each set of moving blocks 17. Insert blocks 16 are movably inserted into the outside of the filter screen 6. Pull handles 20 are fixedly installed on one end of each set of pull rods 18. Pull rods 18 are slidably installed inside the water suction cover 3. The dual positioning ensures both stability and flexibility of disassembly and assembly.

[0017] like Figure 1 and Figure 4 As shown, the top of the filter bucket 1 has two sets of sliding grooves, and two sets of sliding frames 9 are slidably installed in the corresponding sliding grooves. The other ends of the two sets of return springs 10 are fixedly installed on one side of the corresponding sliding groove, and the other ends of the two sets of return springs 13 are fixedly installed on the inner wall of one side of the corresponding sliding frame 9. The two sets of return springs 13 are sleeved on the outside of the corresponding pull rod 14, providing a precise sliding track for the sliding frame 9, avoiding the sliding frame 9 from shifting or getting stuck when moving left and right, and ensuring that the locking block 8 can be accurately aligned with the locking groove 55 of the mounting plate 51.

[0018] Two sets of slots 55 are provided on the outer side of the mounting plate 51. The two sets of blocks 8 are movably inserted into the corresponding slots 55 to ensure that the filter assembly 5 is evenly stressed after installation and will not tilt or fail to seal properly due to fixation on one side.

[0019] like Figure 2 and Figure 5 As shown, the inside of the water absorption cover 3 is provided with two sets of limiting grooves. Two sets of moving blocks 17 are slidably installed in the corresponding limiting grooves. The other end of the two sets of return springs 19 is fixedly installed on one side of the limiting groove. The two sets of return springs 19 are sleeved on the outside of the corresponding pull rods 18, providing a sliding track for the moving blocks 17 and ensuring that the moving blocks 17 will not deviate when moving left and right.

[0020] In the actual product, the outer side of the filter screen 6 has two sets of slots, and the two sets of plugs 16 are movably inserted into the corresponding slots, which greatly shortens the maintenance time.

[0021] In use, the outlet pipe 4 is connected to the inlet of the submersible pump. Then, the submersible pump is started to create negative pressure in the outlet pipe 4, which allows water to enter the system through the suction hood 3 at the bottom of the device. The suction hood 3 serves as the water inlet, and the removable filter screen 6 inside its inlet will first perform preliminary filtration of the water to prevent large particles of impurities from directly entering the subsequent pipes or filter assembly 5, thus preventing pipe blockage or a sudden increase in filtration load. The water that has been pre-filtered by the filter screen 6 is transported upward to the filter assembly 5 through the suction hood 3 and the inlet pipe 2. After being deeply filtered by the coarse filter cartridge 54 and the fine filter cartridge 53, it is discharged through the outlet pipe 4. The staged filtration design not only ensures the filtration effect but also avoids the problem of easy clogging of a single filter screen, extending the overall service life of the filter assembly 5. By setting the sealing ring 7, the water in the filter bucket 1 is prevented from leaking from the top opening, ensuring that all water flows through the filter assembly 5 for filtration. When the filter screen 6 needs to be replaced or maintained, simply pull the two sets of handles 20 to move the corresponding levers 18 and moving blocks 17 relative to each other. The return spring 19 retracts, and the insert block 16 disengages from the slot to release the lock on the filter screen 6, easily achieving quick disassembly of the filter screen 6. After replacement or maintenance, reset the filter screen 6 so that the slot and insert block 16 are aligned. Then release the handles 20. Under the elastic force of the return spring 19, the moving block 17 and insert block 16 reset, quickly locking the filter screen 6. When the filter assembly 5 needs maintenance or replacement, pulling the two sets of handles 15 upwards moves the corresponding sliders 11 and inserts 12 within the slide frame 9, causing the return spring 13 to retract. At this time, the inserts 12 release their lock on the slide frame 9. Subsequently, pulling the two sets of handles 15 relative to each other moves the corresponding slide frame 9 relative to each other via the pull rod 14 and sliders 11, causing the return spring 10 to retract. This causes the locking block 8 to disengage from the slot 55 of the mounting plate 51, releasing the lock on the mounting plate 51, thus allowing the filter assembly 5 to be removed from the filter canister. Remove the filter assembly 5 from the filter canister 1 for easy maintenance or replacement. After maintenance or replacement, insert the filter assembly 5 into the filter canister 1 so that the slot 55 is aligned with the locking block 8. Then, release the pull handle 15. Under the elastic force of the return spring 10, the slide frame 9 and the locking block 8 are reset. The locking block 8 is inserted into the slot 55 to fix the mounting plate 51. Under the elastic force of the return spring 2 13, the slider 11 drives the insertion block 12 to reset and lock the slide frame 9, thus achieving double locking of the filter assembly 5.

[0022] The above provides a detailed description of the submersible pump filtration device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A submersible pump filtration device, characterized in that, include: A filter bucket (1) is provided with a water inlet pipe (2) at the bottom and a water suction cover (3) at the bottom end of the water inlet pipe (2). A filter screen (6) is detachably installed inside the water inlet end of the water suction cover (3). A water outlet pipe (4) is connected to the outside of the filter bucket (1). A filter assembly (5) is detachably installed on the top of the filter bucket (1). The filter assembly (5) includes a mounting plate (51) and a connecting plate (52). A coarse filter cylinder (54) and a fine filter cylinder (53) are provided between the mounting plate (51) and the connecting plate (52). Two sets of sliding frames (9) are slidably installed inside the top of the filter bucket (1). The two sets of sliding frames (9) are fixed on both sides respectively. A reset spring (10) and a locking block (8) are fixedly installed. The two sets of locking blocks (8) are movably inserted into the outside of the mounting plate (51). The two sets of sliding frames (9) are each slidably installed with a slider (11). The bottom of the two sets of sliders (11) is fixedly installed with a first insert block (12). The two sets of first insert blocks (12) are movably inserted into the filter bucket (1) and slidably installed in the corresponding sliding frame (9). The top of the two sets of sliders (11) is fixedly installed with a first pull rod (14) and a second reset spring (13). The top of the two sets of first pull rods (14) is fixedly installed with a first handle (15). A sealing ring (7) is provided between the filter bucket (1) and the mounting plate (51).

2. The submersible pump filtration device according to claim 1, characterized in that, Two sets of the card blocks (8) are slidably installed inside the filter bucket (1). Two sets of the insert blocks are movably inserted into the filter bucket (1) and slidably installed in the corresponding slide frame (9). Two sets of the pull rods (14) are slidably installed on the top of the corresponding slide frame (9) and the top of the filter bucket (1). The water inlet pipe (2) is connected to the fine filter cylinder (53) and the coarse filter cylinder (54) through the connecting plate (52). Two sets of moving blocks (17) are slidably installed inside the water absorption cover (3). A pull rod (18) and a reset spring (19) are fixedly installed on one side of each of the two sets of moving blocks (17). An insert block (16) is fixedly installed on the other side of each of the two sets of moving blocks (17). The insert blocks (16) are movably inserted into the outside of the filter screen (6). A handle (20) is fixedly installed at one end of each of the two sets of pull rods (18). The pull rods (18) are slidably installed inside the water absorption cover (3).

3. The submersible pump filtration device according to claim 1, characterized in that, The top of the filter barrel (1) is provided with two sets of sliding grooves. The two sets of sliding frames (9) are slidably installed in the corresponding sliding grooves. The other end of the two sets of reset springs (10) is fixedly installed on one side of the corresponding sliding groove. The other end of the two sets of reset springs (13) is fixedly installed on the inner wall of one side of the corresponding sliding frame (9). The two sets of reset springs (13) are sleeved on the outside of the corresponding pull rod (14).

4. The submersible pump filtration device according to claim 1, characterized in that, The mounting plate (51) has two sets of slots (55) on its outer side, and the two sets of card blocks (8) are movably inserted into the corresponding slots (55).

5. A submersible pump filtration device according to claim 2, characterized in that, The inside of the water-absorbing cover (3) is provided with two sets of limiting grooves. The two sets of moving blocks (17) are slidably installed in the corresponding limiting grooves. The other end of the two sets of reset springs (19) is fixedly installed on one side of the limiting groove. The two sets of reset springs (19) are sleeved on the outside of the corresponding pull rods (18).

6. A submersible pump filtration device according to claim 2, characterized in that, The filter screen (6) has two sets of slots on its outer side, and the two sets of plug blocks (16) are movably inserted into the corresponding slots.

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