Submersible electric pump with detachable filter screen
By designing a structure that combines a sliding block and a sliding ball, the filter sleeve can be easily installed and disassembled, solving the replacement problem caused by the filter screen being integrated with the pump body in existing submersible pumps. This achieves convenient disassembly of the filter screen and extends its service life.
Patent Information
- Application Number
- CN202520722516.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-15
AI Technical Summary
The filter screen of existing submersible pumps is integrated with the pump body, which means that when the filter screen is damaged, the entire pump body must be replaced. Moreover, impurities wear down the filter screen so much that it loses its filtering function.
Design a submersible electric pump with a detachable filter screen. The filter sleeve can be easily installed and removed by the cooperation of the slide and the ball. The filter sleeve can be easily fixed and removed by the connecting spring and the sliding groove structure.
It enables convenient disassembly and installation of the filter screen, extends the service life of the filter screen, reduces the frequency of pump body replacement, and lowers maintenance costs.
Smart Images

Figure CN223923416U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pump technology, and relates to a submersible electric pump, particularly a submersible electric pump with a detachable filter screen. Background Technology
[0002] Submersible pumps are water-lifting devices that operate submerged in water, with the motor and pump directly connected. They are suitable for extracting groundwater from deep wells and can also be used in water lifting projects in rivers, reservoirs, and canals. Submersible pumps have relatively high requirements for the water environment and are equipped with a filter screen at the suction port to prevent impurities from entering the pump body and damaging internal parts. However, there is a risk that impurities can cause the filter screen to wear out severely due to impacts, rendering it ineffective. Furthermore, since the filter screen on most submersible pumps is integrated with the pump body, damage to the filter screen necessitates replacing the entire pump body. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a submersible electric pump that is reasonably designed, has a simple structure, and is easy to disassemble.
[0004] The objective of this utility model can be achieved through the following technical solution: A submersible electric pump with a detachable filter screen includes a pump body, the upper end of which is provided with a pump cover, the pump cover being provided with an inlet for water intake and an outlet for water output, characterized in that a slide is provided on the pump cover relative to the inlet, a filter sleeve for liquid filtration is provided inside the pump cover, the inlet is provided with a sliding groove for the slide to slide, and a connecting spring for the slide to move up and down is provided on the sliding groove, the inlet is provided with a plurality of sliding balls, the inlet is provided with a rolling groove for the sliding balls to roll, the inner wall of the slide is provided with a slot one that connects to one end of a corresponding sliding ball, and the outer peripheral wall of the filter sleeve is provided with a slot two that connects to the other end of a corresponding sliding ball.
[0005] In the above-mentioned submersible electric pump with a detachable filter screen, a fixing part is provided on the inner wall of the water inlet, the lower end of the filter sleeve is connected to the upper end of the fixing part, and a filter screen for filtering is provided on the filter sleeve.
[0006] In the above-mentioned submersible electric pump with a detachable filter, one end of the connecting spring is connected to the slide, and the other end of the connecting spring is connected to the water inlet.
[0007] In the above-mentioned submersible electric pump with a detachable filter screen, a pump motor is installed inside the pump body, the motor shaft of the pump motor extends out of the pump body and is connected to an impeller, and the impeller is installed inside the pump cover.
[0008] Compared with existing technologies, this submersible pump with detachable filter screen facilitates the fixing or disassembly of the filter sleeve at the water inlet by the cooperation of the slide and the sliding ball. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0011] In the diagram, 1. Pump body; 2. Pump cover; 3. Inlet; 4. Outlet; 5. Slide; 6. Filter sleeve; 7. Connecting spring; 8. Sliding ball; 9. Rolling groove; 10. Slot one; 11. Slot two; 12. Fixing part; 13. Filter screen; 14. Pump motor. Detailed Implementation
[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0013] like Figure 1 , Figure 2 As shown, this submersible electric pump with detachable filter screen includes a pump body 1. The upper end of the pump body 1 is provided with a pump cover 2. The pump cover 2 is provided with an inlet part 3 for water intake and an outlet part 4 for water output. A slide 5 is provided on the pump cover 2 opposite to the inlet part 3. A filter sleeve 6 for liquid filtration is provided inside the pump cover 2. The inlet part 3 has a sliding groove for the slide 5 to slide, and a connecting spring 7 for the slide 5 to move up and down is provided on the sliding groove. A plurality of sliding balls 8 are provided on the inlet part 3. A rolling groove 9 for the sliding balls 8 to roll is provided at the inlet part 3. A slot 10 is provided on the inner wall of the slide 5 to connect with one end of the corresponding sliding ball 8. A slot 2 11 is provided on the outer peripheral wall of the filter sleeve 6 to connect with the other end of the corresponding sliding ball 8.
[0014] To further explain the installation of the filter sleeve 6, first apply pressure to the slide block 5 to move it downwards. One end of the ball bearing 8 mates with the slot 10 of the slide block 5. Then, install the filter sleeve 6 into the water inlet 3. Release the slide block 5, and the connecting spring 7 returns, extending the other end of the ball bearing 8 out of the slot and engaging with the slot 11 of the filter sleeve 6. At this time, one end of the ball bearing 8 abuts against the inner wall of the slide block 5, and the other end of the ball bearing 8 extends into the slot 11 of the filter sleeve 6, thereby fixing the filter sleeve 6 at the water inlet 3. When the submersible pump starts running, water enters the pump body 1 from the water inlet 3 and is filtered through the filter screen 13 on the filter sleeve 6.
[0015] To further explain the disassembly of the filter sleeve 6, first apply pressure to the slide block 5 to move it downwards. Once the slide block 5 moves to the groove, one end of the sliding ball 8 can slide into the slot 10, thereby removing the filter sleeve 6 from the water inlet 3.
[0016] To elaborate further, a fixing part 12 is provided on the inner wall of the water inlet 3, the lower end of the filter sleeve 6 is connected to the upper end of the fixing part 12, and a filter screen 13 for filtering is provided on the filter sleeve 6.
[0017] To elaborate further, one end of the connecting spring 7 is connected to the slide block 5, and the other end of the connecting spring 7 is connected to the water inlet 3.
[0018] To elaborate further, a water pump motor 14 is installed inside the water pump body 1. The motor shaft of the water pump motor 14 extends out of the water pump body 1 and is connected to an impeller, which is located inside the pump cover 2.
[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0020] Although this document frequently uses terms such as pump body 1, pump cover 2, inlet 3, outlet 4, slide 5, filter sleeve 6, connecting spring 7, ball 8, rolling groove 9, slot one 10, slot two 11, fixing part 12, filter screen 13, and pump motor 14, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A submersible electric pump with a detachable filter screen, comprising a pump body (1), wherein a pump cover (2) is provided at the upper end of the pump body (1), and the pump cover (2) is provided with a water inlet (3) for water intake and a water outlet (4) for water discharge, characterized in that, A slide block (5) is provided on the pump cover (2) and relative to the water inlet (3). A filter sleeve (6) for liquid filtration is provided inside the pump cover (2). A sliding groove is provided on the water inlet (3) for the slide block (5) to slide, and a connecting spring (7) for the slide block (5) to move up and down is provided on the sliding groove. A plurality of sliding balls (8) are provided on the water inlet (3). A rolling groove (9) is provided on the water inlet (3) for the sliding balls (8) to roll. A slot one (10) is provided on the inner wall of the slide block (5) and connected to one end of the corresponding sliding ball (8). A slot two (11) is provided on the outer peripheral wall of the filter sleeve (6) and connected to the other end of the corresponding sliding ball (8).
2. The submersible electric pump with a detachable filter screen according to claim 1, characterized in that, A fixing part (12) is provided on the inner wall of the water inlet (3), the lower end of the filter sleeve (6) is connected to the upper end of the fixing part (12), and a filter screen (13) for filtering is provided on the filter sleeve (6).
3. A submersible electric pump with a detachable filter screen according to claim 1, characterized in that, One end of the connecting spring (7) is connected to the slide (5), and the other end of the connecting spring (7) is connected to the water inlet (3).
4. A submersible electric pump with a detachable filter screen according to claim 1, characterized in that, The water pump body (1) is equipped with a water pump motor (14). The motor shaft of the water pump motor (14) extends out of the water pump body (1) and is connected to an impeller. The impeller is located inside the pump cover (2).