A clog-resistant filter pump
By introducing a double-layer filter screen and a cutting device into the water pump, the problem of easy clogging of the water pump is solved, achieving efficient filtration and convenient maintenance, and extending the service life of the water pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BAOWAN ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-26
AI Technical Summary
Existing water pumps are easily clogged by leaves and other debris, resulting in low efficiency, shortened service life, and inconvenient disassembly of the filter, which increases maintenance costs.
An anti-clogging filter pump was designed, which uses a double-layer filter screen and a cutting device. The filter is installed at the front end of the water inlet pipe and is easy to disassemble through a quick-release structure. The cutting device cuts the blockage into small pieces to prevent larger objects from clogging the water inlet.
It effectively prevents clogging, extends the service life of the water pump, improves working efficiency, facilitates disassembly and maintenance, and reduces maintenance costs.
Smart Images

Figure CN224283049U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pump technology, and relates to a filter-type water pump, and particularly to an anti-clogging filter pump. Background Technology
[0002] A water pump is a device used to transport and pressurize liquids, primarily for conveying liquid media such as water, oil, and suspensions. It is especially suitable for transporting liquids containing impurities, such as in garden irrigation and wastewater treatment. Water pumps are commonly used to transport water, but occasionally, debris such as leaves may flow into the water, potentially blocking the pump inlet and reducing its efficiency.
[0003] Existing water pumps typically use single-layer filters, which are easily clogged by debris such as leaves and fibers, requiring frequent shutdowns for cleaning and impacting efficiency. While cutting filters exist in existing technology, they suffer from incomplete cutting or secondary clogging, potentially damaging the pump, reducing its lifespan, and negatively affecting the user's water experience. Furthermore, the inconvenience of disassembling the filter increases costs and hinders maintenance and cleaning. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing an anti-clogging filter pump that prevents blockage caused by large objects.
[0005] The objective of this utility model can be achieved through the following technical solution: an anti-clogging filter pump, comprising a motor, a pump body, a base, an inlet pipe, and an outlet pipe. A fixed seat and a fixed block are installed on the base. A motor is installed on the upper end of the fixed seat, and a pump body is installed on the upper end of the fixed block. A connecting frame is installed between the motor and the pump body. A first connecting flange is provided on the side of the connecting frame near the pump body, and a second connecting flange is provided on the side of the connecting frame near the motor. A filter is installed on the inlet pipe. A rotating shaft is installed between the filter and the motor. The rotating shaft extends from the motor, passes through the pump body and the connecting frame, and connects to the filter.
[0006] In the aforementioned anti-clogging filter pump, the filter is equipped with a cutting device, which is connected to a rotating shaft. The filter is fitted with a first filter screen and a second filter screen, and each of the first and second filter screens has a bearing installed at its center.
[0007] In the aforementioned anti-clogging filter pump, the filter is equipped with a quick-release button, and the quick-release button is equipped with a limit block.
[0008] In the aforementioned anti-clogging filter pump, the filter end is provided with a groove, and a sealing ring is installed on the groove.
[0009] In the aforementioned anti-clogging filter pump, a limiting part is provided on the water inlet pipe.
[0010] In the aforementioned anti-clogging filter pump, a bearing is installed at the connection port of the pump body near the first connecting flange.
[0011] In the aforementioned anti-clogging filter pump, a bearing is installed at the center connection port of the second connecting flange.
[0012] Compared with existing technologies, the advantages of this anti-clogging filter pump are as follows: the filter is installed at the front end of the inlet pipe, which is easy to disassemble; the cutting device on the filter cuts off the blockage, preventing large objects from blocking the inlet, reducing damage to the pump, and improving the service life of the pump; the filter is connected to the pump body through a quick-release structure, which is convenient for disassembly, cleaning and maintenance. Attached Figure Description
[0013] Figure 1 This is the front view of the anti-clogging filter pump;
[0014] Figure 2 This is a cross-sectional view of an anti-clogging filter pump;
[0015] Figure 3 yes Figure 2 A magnified view of circle A;
[0016] Figure 4 This is the front view of the filter in the anti-clogging filter pump;
[0017] Figure 5 This is a cross-sectional view of the filter in the anti-clogging filter pump;
[0018] Figure 6 yes Figure 5 A magnified view of circle B;
[0019] The components are as follows: 1. Pump body; 2. Motor; 3. Base; 31. Fixing seat; 32. Fixing block; 4. Inlet pipe; 41. Limiting part; 5. Outlet pipe; 6. Connecting frame; 61. First connecting flange; 62. Second connecting flange; 7. Filter; 71. Cutting device; 711. Rotating blade; 72. First filter screen; 73. Second filter screen; 74. Quick release button; 741. Limiting block; 75. Groove; 8. Rotating shaft; 9. Bearing; 10. Sealing ring. Detailed Implementation
[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solution of the present invention. However, the described embodiments are only a part of the embodiments of the present invention.
[0021] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0022] like Figures 1 to 2 As shown, this utility model can be implemented through the following embodiments: an anti-clogging filter pump includes a pump body 1, a motor 2, a base 3, an inlet pipe 4, and an outlet pipe 5. The base 3 is provided with a fixing seat 31 and a fixing block 32. The motor 2 is installed on the fixing seat 31, and the pump body 1 is installed on the fixing block 32. A connecting frame 6 is installed between the motor 2 and the pump body 1. A first connecting flange 61 is provided on the side of the connecting frame 6 near the pump body 1, and a second connecting flange 62 is provided on the side of the connecting frame 6 near the motor 2. A filter 7 is installed on the inlet pipe 4, and a rotating shaft 8 is installed on the filter 7 and connected to the motor 2 through the rotating shaft 8.
[0023] Preferred, such as Figures 3 to 5 As shown, a cutting device 71 is installed on the filter 7. The cutting device 71 consists of a bearing 9 and a rotating blade 711. The cutting device 71 is connected to the motor 2 via a rotating shaft 8 mounted on it. The motor 2 causes the rotating shaft 8 to rotate, which in turn drives the cutting device 71 to rotate, quickly and effectively cutting larger objects in the water flow into small pieces. The filter 7 is provided with a first filter screen 72 and a second filter screen 73. The second filter screen 73 has smaller filter holes than the first filter screen 72. There is a gap between the first filter screen 72 and the second filter screen 73 to accommodate small impurities. According to the above, the first filter screen 72 filters out small pieces, and the second filter screen 73 further filters out small impurities, thus fully filtering the water. The end of the filter 7 is provided with a groove 75, and a sealing ring 10 is installed on the groove 75 to prevent water from flowing out from the connection gap between the filter 7 and the water inlet pipe 4.
[0024] Preferably, the filter 7 and the water inlet pipe 4 are installed via a quick-release structure. The filter 7 is equipped with a quick-release button 74 and a limit block 741. The water inlet pipe 4 is equipped with a limit part 41. Simply press the quick-release button 74 and insert the limit block 741 into the limit part 41. Similarly, disassembly can be achieved by pressing the quick-release button again and pulling it out, which facilitates the disassembly, cleaning and maintenance of the water pump.
[0025] Preferred, such as Figure 2 and Figure 4 As shown, a bearing 9 is installed at the center of the motor 2 and the second connecting flange 62, a bearing 9 is installed at the center of the pump body 1 and the first connecting flange 61, and a bearing 9 is installed at the center of the first filter screen 72 and the second filter screen 73.
[0026] The working principle of this utility model is as follows: the motor 2 drives the rotating shaft 8 to rotate, which in turn rotates the cutting device 71 at the other end of the rotating shaft 8 to cut larger objects that have accidentally entered the water flow; the cut pieces are intercepted by the first filter screen 72, and then the second filter screen 73 filters out even smaller impurities, thereby preventing larger objects from clogging the water inlet pipe 4, reducing damage to the water pump, and helping to extend the service life of the water pump.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An anti-clogging filter pump comprising a pump body (1), an electric motor (2), a base (3), an inlet pipe (4) and an outlet pipe (5), characterized in that: The base (3) is equipped with a fixed seat (31) and a fixed block (32). The fixed seat is equipped with a motor (2). The fixed block (32) is equipped with a pump body (1). A connecting frame (6) is installed between the motor (2) and the pump body (1). The connecting frame (6) has a first connecting flange (61) on the side near the pump body (1) and a second connecting flange (62) on the side near the motor (2). A filter (7) is installed on the water inlet pipe (4). A rotating shaft (8) is installed between the filter (7) and the motor (2). The rotating shaft (8) runs from the motor (2) through the pump body (1) and the connecting frame (6) and is connected to the filter (7).
2. The anti-clogging filter pump according to claim 1, characterized in that: The filter (7) is equipped with a cutting device (71), which consists of a bearing (9) and a rotating blade (711). The rotating blade (711) is connected to the bearing (9). The filter (7) is equipped with a first filter screen (72) and a second filter screen (73). The center openings of the first filter screen (72) and the second filter screen (73) are each equipped with a bearing (9).
3. The anti-clogging filter pump according to claim 1, characterized in that: The filter (7) is provided with a quick release button (74), and the quick release button is provided with a limit block (741).
4. The anti-clogging filter pump according to claim 1, characterized in that: The filter (7) has a groove (75) at its end, and a sealing ring (10) is installed on the groove (75).
5. The anti-clogging filter pump according to claim 1, characterized in that: The water inlet pipe (4) is provided with a limiting part (41).
6. The anti-clogging filter pump according to claim 1, characterized in that: A bearing (9) is installed on the pump body (1) near the connection port of the first connecting flange (61).
7. The anti-clogging filter pump according to claim 1, characterized in that: A bearing (9) is installed at the center connection port of the second connecting flange (62).