Anti-blocking water pump
By incorporating a limit spring, limit rod, sealing strip, and filter screen into the water pump, solid impurities are prevented from entering. Combined with a side inlet and buffer plate, this solves the problems of water pump blockage and impact damage, achieving anti-blockage and anti-impact protection.
Patent Information
- Application Number
- CN202520287615.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-22
AI Technical Summary
Traditional water pumps are prone to impurity damage and reduced sealing due to blockage by solid impurities and impact damage to the inlet during lowering.
The design incorporates a limit spring, limit rod, sealing strip, connecting sleeve, sealing groove, and filter screen to intercept solid impurities. The water inlet is redesigned to be located on the side and equipped with a buffer plate and buffer spring to prevent damage from impacts.
It effectively prevents solid impurities from entering the pump body, extends impeller life, improves sealing, and protects the inlet from impact damage, thus extending its service life.
Smart Images

Figure CN223894558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump technology, specifically to an anti-clogging water pump. Background Technology
[0002] In industrial production and daily life, water pumps are widely used as key equipment for transporting liquids. Whether it is sewage treatment, agricultural irrigation, construction, or industrial circulating water systems, the efficient operation of water pumps is indispensable. However, traditional water pumps often face the problem of clogging during use. During the pumping process, the water usually contains a large number of solid impurities, such as plastic bags, branches, and silt. Once these impurities enter the water pump, they can easily become entangled on the impeller or block the flow channel, causing the water pump to malfunction or even damage key components such as the impeller. Furthermore, when the water pump is in operation, it needs to be placed at the bottom of the water. During the descent, the water pump may sink to the bottom due to its own weight and collide with the ground, causing damage and deformation to the inlet, affecting normal use. To solve the above problems, a clogging-resistant water pump is needed.
[0003] An existing water pump has several drawbacks during operation. It cannot prevent clogging, allowing solid impurities to easily enter the pump and damage critical components such as the impeller. It also lacks impact protection, making the inlet prone to damage and deformation when the pump is lowered into the water and impacts the bottom surface. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide an anti-clogging water pump to solve the problems of existing water pumps that cannot prevent clogging during use, allowing solid impurities to easily enter the pump and damage key components such as the impeller, lacking anti-collision protection, and causing damage and deformation of the inlet when the pump is lowered into the water and impacts the bottom surface.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging water pump, comprising a pump body, an outlet on the side wall of the pump body, a limit spring installed on the inner bottom wall of the pump body, a limit rod installed on the outer wall of the limit spring, a sealing strip installed at the bottom of the pump body, a connecting sleeve installed on the outer bottom wall of the pump body, a sealing groove and a slot on the inner wall of the connecting sleeve, a filter screen installed on the inner wall of the slot, an inlet at the bottom of the connecting sleeve, a limit rod installed at the bottom of the inlet, a buffer plate installed at the bottom of the limit rod, and a buffer spring installed on the outer wall of the limit rod.
[0006] Preferably, the limiting top rod forms a telescopic structure with the pump body through a limiting spring, and the limiting top rod is engaged with the connecting sleeve.
[0007] Preferably, the sealing strip is inserted into the sealing groove, and the connecting sleeve is sleeved with the pump body.
[0008] Preferably, the slots are arranged in a rectangular array with the central axis of the connecting sleeve as the center, and the filter screen is movably connected to the slots.
[0009] Preferably, the limiting rod is movably connected to the water inlet, and the limiting rod is arranged in a circular array with the central axis of the water inlet as the center.
[0010] Preferably, the buffer plate forms a telescopic structure with a buffer spring and a limiting rod, and the diameter of the buffer plate is larger than the diameter of the water inlet.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model uses a limiting spring, a limiting rod, a sealing strip, a connecting sleeve, a sealing groove, a slot, and a filter screen to fix the filter screen along the slot and the connecting sleeve. Then, the limiting rod is pressed inward, and the connecting sleeve is inserted into the bottom of the pump body to a suitable position. At this time, the limiting rod is pushed out by the elastic force of the limiting spring, so that the limiting rod and the connecting sleeve are engaged and connected. The filter screen can intercept small solid impurities in the water, preventing them from entering the pump body and damaging key components such as the impeller. The sealing groove and sealing strip increase the sealing performance of the device.
[0013] 2. This utility model, through the design of an inlet, limiting rod, buffer plate, and buffer spring, addresses the issue that the inlet of a traditional water pump is vertically downward at the bottom of the pump body. When the pump body is lowered to the bottom of the water, it is easy to directly insert into the mud, affecting water pumping. In contrast, the inlet of this utility model is set to the side, preventing mud from entering and causing blockage. The buffer plate, through the elasticity of the buffer spring, buffers and protects the bottom of the inlet, preventing damage and deformation of the inlet due to its own weight impacting the bottom surface during the lowering process, thus extending the service life of the device. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of the present utility model from the front view;
[0015] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;
[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;
[0017] Figure 4 This is a structural schematic diagram showing the components surrounding the buffer plate of this utility model disassembled.
[0018] In the diagram: 1. Pump body; 2. Outlet; 3. Limit spring; 4. Limit rod; 5. Sealing strip; 6. Connecting sleeve; 7. Sealing groove; 8. Slot; 9. Filter screen; 10. Inlet; 11. Limit rod; 12. Buffer plate; 13. Buffer spring. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] The embodiments of this utility model will be described below based on its overall structure.
[0021] Please see Figure 1-4 This anti-clogging water pump includes a pump body 1, an outlet 2 on the side wall of the pump body 1, a limit spring 3 installed on the inner bottom wall of the pump body 1, a limit rod 4 installed on the outer wall of the limit spring 3, a sealing strip 5 installed at the bottom of the pump body 1, a connecting sleeve 6 installed on the outer bottom wall of the pump body 1, a sealing groove 7 and a slot 8 on the inner wall of the connecting sleeve 6, and a filter screen 9 installed on the inner wall of the slot 8. The limit rod 4 forms a telescopic structure with the pump body 1 through the limit spring 3, and the limit rod 4 is engaged with the connecting sleeve 6. The sealing strip 5 is inserted into the sealing groove 7, the connecting sleeve 6 is sleeved with the pump body 1, and the slots 8 are arranged in a rectangular array with the central axis of the connecting sleeve 6 as the center. The filter screen 9 is distributed and movably connected to the slot 8. Through the setting of the limiting spring 3, limiting rod 4, sealing strip 5, connecting sleeve 6, sealing groove 7, slot 8 and filter screen 9, the filter screen 9 is engaged and fixed along the slot 8 and the connecting sleeve 6. Then the limiting rod 4 is pressed inward, and then the connecting sleeve 6 is inserted into the bottom of the pump body 1 to a suitable position. At this time, the limiting rod 4 is pushed out by the elastic force of the limiting spring 3, so that the limiting rod 4 and the connecting sleeve 6 are engaged and connected. The setting of the filter screen 9 can intercept fine solid impurities in the water and prevent them from entering the pump body 1 and damaging key components such as the impeller. The setting of the sealing groove 7 and sealing strip 5 increases the sealing performance of the device.
[0022] The connecting sleeve 6 has a water inlet 10 installed at its bottom, a limit rod 11 installed at its bottom, a buffer plate 12 installed at its bottom, and a buffer spring 13 installed on the outer wall of the limit rod 11. The limit rod 11 is movably connected to the water inlet 10, and the limit rods 11 are arranged in a circular array around the central axis of the water inlet 10. The buffer plate 12 forms a telescopic structure with the limit rod 11 through the buffer spring 13, and the diameter of the buffer plate 12 is larger than the diameter of the water inlet 10. The positioning rod 11, buffer plate 12, and buffer spring 13 are used in this invention. In a traditional water pump, the inlet 10 is vertically downward at the bottom of the pump body 1. When the pump body 1 is lowered to the bottom of the water, it is easy to insert directly into the mud, which affects the pumping. However, the inlet 10 of this invention is set to the side, so mud cannot enter and cause blockage. The buffer plate 12, through the elasticity of the buffer spring 13, provides buffer protection for the bottom of the inlet 10, so as to avoid damage and deformation of the inlet 10 due to its own weight impacting the bottom surface during the process of lowering it to the bottom of the water, thus extending the service life of the device.
[0023] When using this anti-clogging water pump, first move the device to the desired position, then engage and fix the filter screen 9 along the slot 8 and the connecting sleeve 6. Next, press the limiting rod 4 inward, and then insert the connecting sleeve 6 into the bottom of the pump body 1 in the appropriate position. At this time, the limiting rod 4 is pushed out by the elastic force of the limiting spring 3, so that the limiting rod 4 and the connecting sleeve 6 are engaged and connected. The filter screen 9 can intercept fine solid impurities in the water, preventing them from entering the pump body 1 and damaging key components such as the impeller. The sealing groove 7 and the sealing strip 5 increase the sealing performance of the device. Then, the inlet 10 of the traditional water pump is in the direction of... With the pump body 1 vertically downward at the bottom, it is easy to insert directly into the mud when the pump body 1 needs to be lowered to the bottom of the water, which will affect the pumping. However, the water inlet 10 of this utility model is set to the side, so the mud cannot enter and cause blockage. The buffer plate 12, through the elasticity of the buffer spring 13, provides buffer protection for the bottom of the water inlet 10, so as to avoid damage and deformation of the water inlet 10 due to its own weight impacting the bottom of the water surface during the process of lowering it to the bottom of the water, thus extending the service life of the device. This completes the use of the device. The contents not described in detail in this specification are the prior art known to those skilled in the art.
[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A clog-resistant water pump, comprising a pump body (1), characterized in that: The pump body (1) has an outlet (2) on its side wall. A limit spring (3) is installed on the bottom inner wall of the pump body (1). A limit rod (4) is installed on the outer wall of the limit spring (3). A sealing strip (5) is installed at the bottom of the pump body (1). A connecting sleeve (6) is installed on the bottom outer wall of the pump body (1). A sealing groove (7) is opened on the inner wall of the connecting sleeve (6). A slot (8) is opened on the inner wall of the connecting sleeve (6). A filter screen (9) is installed on the inner wall of the slot (8). An inlet (10) is installed at the bottom of the connecting sleeve (6). A limit rod (11) is installed at the bottom of the inlet (10). A buffer plate (12) is installed at the bottom of the limit rod (11). A buffer spring (13) is installed on the outer wall of the limit rod (11).
2. The anti-clogging water pump according to claim 1, characterized in that: The limiting top rod (4) forms a telescopic structure with the pump body (1) through the limiting spring (3), and the limiting top rod (4) is engaged with the connecting sleeve (6).
3. The anti-clogging water pump according to claim 1, characterized in that: The sealing strip (5) is inserted into the sealing groove (7), and the connecting sleeve (6) is sleeved with the pump body (1).
4. The anti-clogging water pump according to claim 1, characterized in that: The slots (8) are arranged in a rectangular array with the central axis of the connecting sleeve (6) as the center, and the filter screen (9) is movably connected to the slots (8).
5. A clog-resistant water pump according to claim 1, characterized in that: The limiting rod (11) is movably connected to the water inlet (10), and the limiting rod (11) is arranged in a ring array with the central axis of the water inlet (10) as the center.
6. The anti-clogging water pump according to claim 1, characterized in that: The buffer plate (12) forms a telescopic structure with the buffer spring (13) and the limiting rod (11), and the diameter of the buffer plate (12) is larger than the diameter of the inlet (10).