Anti-blocking sewage pump

By installing a circular retaining ring and an anti-clogging cleaning mechanism on the bottom of the sewage pump, the problem of clogging at the sewage pump inlet is solved, achieving efficient pumping and stable operation, and simplifying maintenance.

CN223964603UActive Publication Date: 2026-03-03ZHEJIANG JINMU PUMP CO LTD
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Patent Information

Application Number
CN202520383399.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The design of existing sewage pumps, with the inlet at the bottom of the pump body, prevents sewage from smoothly entering the pump body, affecting the pumping efficiency.

Method used

A circular retaining ring is installed on the bottom surface of the sewage pump body. The outer surface of the circular retaining ring is arrayed with water inlet holes and equipped with a support mechanism and an anti-clogging and cleaning mechanism, including a rotating disc, anti-clogging blades, connecting seat, drive connecting rod and waterproof bolts. The drive mechanism drives the rotating disc and anti-clogging blades to cut the entangled fibrous material, ensuring that sewage can smoothly enter the pump body.

Benefits of technology

It improves the pumping efficiency and stability of sewage pumps, prevents clogging, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223964603U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of pumps, and discloses an anti-blocking sewage pump which comprises a sewage pump body, a circular baffle ring is fixedly installed on the bottom face of the sewage pump body, a plurality of water inlet holes are formed in the outer surface of the circular baffle ring in a circumferential array mode, and a supporting mechanism is arranged on the outer surface of the sewage pump body. An anti-blocking cleaning mechanism is arranged on the bottom surface of the circular baffle ring, the anti-blocking cleaning mechanism comprises a rotating disc, anti-blocking blades, a connecting seat, a driving connecting rod, a threaded hole and a waterproof bolt, the rotating disc is arranged on the bottom surface of the circular baffle ring, and the anti-blocking blades are fixedly mounted on the top surface of the rotating disc; according to the device, the sewage pump body is conveniently supported through the inclined support and the supporting frame in the supporting mechanism, the stability of the sewage pump body is improved, fiber objects attached to or wound on the outer surface of the circular baffle ring can be effectively cut through the anti-blocking cleaning mechanism, sewage can rapidly enter the sewage pump body through the water inlet hole, and the water pumping efficiency is improved.
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Description

Technical Field

[0001] This application belongs to the field of pump technology, specifically an anti-clogging sewage pump. Background Technology

[0002] A sewage pump is a mechanical device specifically designed for transporting sewage or wastewater containing impurities such as solid particles, fibers, and sludge. Based on its structure, it can be divided into various types, including centrifugal, submersible, liquid-cooled, and self-priming pumps. It features wide flow channels, strong impeller anti-clogging ability, large flow capacity, adaptability to sewage of different concentrations and properties, and the ability to operate in harsh environments. It is widely used in urban sewage treatment plants, industrial wastewater treatment, building drainage, agricultural irrigation drainage, and mine drainage, effectively lifting, transporting, and discharging sewage, playing a vital role in environmental protection and water resource recycling.

[0003] For example, the utility model patent with announcement number CN220716116U discloses an anti-clogging sewage pump, which belongs to the field of pumps. It solves the problem that existing sewage pumps are easily clogged and damaged. This anti-clogging sewage pump includes a pump body with an inlet and an outlet, a centrifugal impeller located in the pump body, and a drive mechanism for driving the centrifugal impeller. An anti-clogging mechanism for cutting and shredding and preventing clogging is provided at the inlet of the pump body. This utility model has the advantages of high strength, high efficiency, long service life and anti-clogging function.

[0004] However, it was discovered during actual use that the device is made by installing a housing at the water inlet at the bottom of the pump body, which is equipped with an anti-clogging mechanism. When the drive mechanism inside the pump body drives the cutting impeller in the anti-clogging mechanism to rotate, it can effectively cut and shred the tangled or bundled fibers, thereby achieving the anti-clogging effect.

[0005] However, the housing of this device is installed at the bottom of the pump body and there is no water inlet on the side. When the pump body is placed in sewage for pumping operation, the sewage cannot flow smoothly into the pump body through the water inlet at the bottom of the pump body and be discharged through the drain pipe. This will affect the pumping efficiency of the pump body. Therefore, an anti-clogging sewage pump is provided.

[0006] Application content

[0007] The purpose of this application is to provide an anti-clogging sewage pump in order to solve the problems mentioned above.

[0008] The technical solution adopted in this application is as follows: an anti-clogging sewage pump, including a sewage pump body, a circular retaining ring fixedly installed on the bottom surface of the sewage pump body, a plurality of water inlet holes arranged in a circumferential array on the outer surface of the circular retaining ring, a support mechanism provided on the outer surface of the sewage pump body, and an anti-clogging cleaning mechanism provided on the bottom surface of the circular retaining ring.

[0009] The anti-clogging cleaning mechanism includes a rotating disk, anti-clogging blades, a connecting seat, a drive connecting rod, a threaded hole, and a waterproof bolt. The rotating disk is provided on the bottom surface of the circular retaining ring, and the anti-clogging blades are fixedly installed on the top surface of the rotating disk. The connecting seat is fixedly installed on the top surface of the rotating disk. The drive connecting rod, which is connected to the internal drive mechanism of the sewage pump body, is provided inside the circular retaining ring. The bottom end of the drive connecting rod is inserted into the inside of the connecting seat, and a threaded hole is opened at the bottom end of the drive connecting rod. A waterproof bolt is movably inserted through the bottom surface of the rotating disk, and one end of the waterproof bolt is threadedly connected to the threaded hole.

[0010] In a preferred embodiment, the support mechanism includes an inclined bracket and a support frame. Multiple inclined brackets are fixedly installed on the outer surface of the sewage pump body, and a support frame is fixedly installed on the end of each of the multiple inclined brackets away from the sewage pump body.

[0011] In a preferred embodiment, the inner wall of the connecting seat is provided with a plurality of limiting grooves in a circumferential array, and the outer surface of the driving connecting rod is fixedly installed with a plurality of limiting protrusions corresponding to the limiting grooves, the limiting protrusions being inserted into the inside of the limiting grooves.

[0012] In a preferred embodiment, a drainage pipe is fixedly installed on the outer surface of the sewage pump body, and the outer surface of the drainage pipe away from the sewage pump body is provided with external threads.

[0013] In a preferred embodiment, the top surface of the rotating disk is equipped with a plurality of anti-clogging blades in a circumferential array, and one side of each of the plurality of anti-clogging blades is close to the outer surface of the circular retaining ring.

[0014] In a preferred embodiment, a lifting handle is fixedly installed on the outer surface of the sewage pump body near its top. In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, due to the adoption of the above-mentioned solution, the device can easily support the sewage pump body through the inclined bracket and support frame in the support mechanism, thereby improving its stability. Furthermore, by utilizing the anti-clogging and cleaning mechanism, it can effectively cut the fibrous material attached to or wrapped around the outer surface of the circular retaining ring, allowing sewage to quickly enter the sewage pump body through the inlet hole, thereby improving the pumping efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the anti-clogging blade structure of this application;

[0018] Figure 3 This is a schematic diagram of the drive connecting rod structure of this application;

[0019] Figure 4 This is a schematic diagram of the waterproof bolt structure of this application;

[0020] Figure 5 For the purposes of this application Figure 2 Enlarged structural diagram at point A in the middle.

[0021] The markings in the diagram are: 1. Sewage pump body; 2. Circular retaining ring; 3. Water inlet; 4. Support mechanism; 401. Inclined bracket; 402. Support frame; 5. Anti-clogging and cleaning mechanism; 501. Rotary disc; 502. Anti-clogging blade; 503. Connecting seat; 504. Drive connecting rod; 505. Threaded hole; 506. Waterproof bolt; 6. Limiting groove; 7. Limiting protrusion; 8. Drainage pipe; 9. Lifting handle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] refer to Figures 1-5 A clog-resistant sewage pump includes a sewage pump body 1. A lifting handle 9 is fixedly installed on the outer surface of the sewage pump body 1 near the top. A drainage pipe 8 is fixedly installed on the outer surface of the sewage pump body 1. The outer surface of the drainage pipe 8 away from the sewage pump body 1 has an external thread. The lifting handle 9 makes it easy for personnel to lift the sewage pump body 1, making subsequent movement and carrying easier. The drainage pipe 8 fixedly installed on the outer surface of the sewage pump body 1 can discharge the pumped sewage. The external thread on the outer surface of the drainage pipe 8 away from the sewage pump body 1 facilitates connection with external internal threaded pipes, greatly improving the convenience of sewage discharge. In addition, a drive mechanism is installed inside the sewage pump body 1. The drive mechanism consists of key components such as a motor, a reducer, and a pump shaft to ensure effective sewage extraction and discharge. The above-mentioned drive mechanism is a publicly available structure in reality and will not be described in detail here.

[0024] refer to Figure 1 , Figure 3 and Figure 4 A circular retaining ring 2 is fixedly installed on the bottom surface of the sewage pump body 1. The outer surface of the circular retaining ring 2 has multiple water inlet holes 3 arranged in a circumferential array. Through the multiple water inlet holes 3, external sewage can enter the interior of the sewage pump body 1 through the water inlet at the bottom of the sewage pump body 1, so as to achieve the sewage discharge effect.

[0025] refer to Figure 1 , Figure 2 and Figure 3 The outer surface of the sewage pump body 1 is provided with a support mechanism 4, which includes an inclined bracket 401 and a support frame 402. Multiple inclined brackets 401 are fixedly installed on the outer surface of the sewage pump body 1, and a support frame 402 is fixedly installed on the end of each of the multiple inclined brackets 401 away from the sewage pump body 1. The inclined brackets 401 and the support frame 402 facilitate the support of the sewage pump body 1 and improve the stability of the sewage pump body 1.

[0026] refer to Figure 1 , Figure 2 and Figure 5 The bottom surface of the circular retaining ring 2 is provided with an anti-clogging cleaning mechanism 5. The anti-clogging cleaning mechanism 5 includes a rotating disk 501, anti-clogging blades 502, a connecting seat 503, a drive connecting rod 504, a threaded hole 505, and a waterproof bolt 506. The bottom surface of the circular retaining ring 2 is provided with a rotating disk 501. The top surface of the rotating disk 501 is fixedly installed with anti-clogging blades 502. Multiple anti-clogging blades 502 are installed in a circumferential array on the top surface of the rotating disk 501, and one side of each anti-clogging blade 502 is close to the outer surface of the circular retaining ring 2. The multiple anti-clogging blades 502 facilitate subsequent rotation under the drive of the rotating disk 501, which facilitates the cutting of debris or tangled fibers attached to the outer surface of the circular retaining ring 2, and minimizes the possibility of blockage at the inlet of the sewage pump body 1.

[0027] refer to Figure 2 , Figure 3 and Figure 5 A connecting seat 503 is fixedly installed on the top surface of the rotating disk 501. A drive connecting rod 504 connected to the internal drive mechanism of the sewage pump body 1 is provided inside the circular retaining ring 2. The bottom end of the drive connecting rod 504 is inserted into the interior of the connecting seat 503. Multiple limiting grooves 6 are formed in a circumferential array on the inner wall surface of the connecting seat 503. Multiple limiting protrusions 7 corresponding to the limiting grooves 6 are fixedly installed on the outer surface of the drive connecting rod 504. The limiting protrusions 7 are inserted into the interior of the limiting grooves 6. By setting the limiting protrusions 7 to be inserted into the interior of the limiting grooves 6, it is convenient to position and install the drive connecting rod 504 and the connecting seat 503, thereby improving the stability of the rotating disk 501 when it rotates. The drive connecting rod 504 is connected to the pump shaft at the bottom of the drive mechanism through a coupling, so that the rotating disk 501 can be rotated when the pump shaft rotates.

[0028] refer to Figure 2 , Figure 3 and Figure 4The bottom end of the drive connecting rod 504 is provided with a threaded hole 505, and a waterproof bolt 506 is movably inserted through the bottom surface of the rotating disk 501. One end of the waterproof bolt 506 is threadedly connected to the threaded hole 505. By connecting one end of the waterproof bolt 506 to the threaded hole 505, it is easy to connect and fix the drive connecting rod 504 and the rotating disk 501 together, thereby improving the stability of the rotating disk 501 when it rotates.

[0029] The implementation principle of an anti-clogging sewage pump embodiment of this application is as follows: The operator first places the device in the sewage to be pumped. At this time, the inclined bracket 401 and the support frame 402 in the support mechanism 4 can support the sewage pump body 1, thereby effectively improving the stability of the sewage pump body 1. Subsequently, the operator starts the drive mechanism inside the sewage pump body 1. The operation of the drive mechanism causes the sewage to enter the pump body and be discharged through the drainage pipe 8. After the drive mechanism inside the sewage pump body 1 is started, it will drive the rotating disk 501 to rotate through the drive connecting rod 504. When the rotating disk 501 rotates, it will drive multiple anti-clogging blades 502 to rotate on the outer surface of the circular baffle ring 2, thereby cutting the fibers attached to or wrapped around the outer surface of the circular baffle ring 2, avoiding blockage at the inlet of the sewage pump body 1 as much as possible, so that the sewage can smoothly enter the interior from the bottom inlet of the sewage pump body 1 through the inlet hole 3 to achieve the pumping effect.

[0030] The device uses a support mechanism 4 to support the sewage pump body 1 and improve its stability. The anti-clogging cleaning mechanism 5 can effectively cut the fibers attached to or wrapped around the outer surface of the circular retaining ring 2, allowing sewage to quickly enter the sewage pump body 1 through the inlet hole 3 and improve pumping efficiency. In addition, the rotating disk 501 and anti-clogging blade 502 in the anti-clogging cleaning mechanism 5 are easy to install and disassemble, improving maintenance convenience.

[0031] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A clog-resistant sewage pump, comprising a sewage pump body (1), characterized in that: A circular retaining ring (2) is fixedly installed on the bottom surface of the sewage pump body (1). The outer surface of the circular retaining ring (2) is provided with multiple water inlet holes (3) in a circumferential array. A support mechanism (4) is provided on the outer surface of the sewage pump body (1). An anti-clogging and cleaning mechanism (5) is provided on the bottom surface of the circular retaining ring (2). The anti-clogging cleaning mechanism (5) includes a rotating disk (501), an anti-clogging blade (502), a connecting seat (503), a drive connecting rod (504), a threaded hole (505), and a waterproof bolt (506). The rotating disk (501) is provided on the bottom surface of the circular retaining ring (2), and the anti-clogging blade (502) is fixedly installed on the top surface of the rotating disk (501). One side of the anti-clogging blade (502) is close to the outer surface of the circular retaining ring (2), and the top surface of the rotating disk (501) is fixed. A connecting seat (503) is installed. The circular retaining ring (2) is provided with a drive connecting rod (504) that is connected to the internal drive mechanism of the sewage pump body (1). The bottom end of the drive connecting rod (504) is inserted into the connecting seat (503). The bottom end of the drive connecting rod (504) is provided with a threaded hole (505). A waterproof bolt (506) is movably inserted through the bottom surface of the rotating disk (501). One end of the waterproof bolt (506) is threadedly connected to the threaded hole (505).

2. The anti-clogging sewage pump as described in claim 1, characterized in that: The support mechanism (4) includes an inclined bracket (401) and a support frame (402). Multiple inclined brackets (401) are fixedly installed on the outer surface of the sewage pump body (1), and a support frame (402) is fixedly installed on the end of each of the multiple inclined brackets (401) away from the sewage pump body (1).

3. The anti-clogging sewage pump as described in claim 1, characterized in that: The inner wall of the connecting seat (503) is provided with a plurality of limiting grooves (6) arranged in a circular array. The outer surface of the driving connecting rod (504) is fixedly installed with a plurality of limiting protrusions (7) corresponding to the limiting grooves (6). The limiting protrusions (7) are inserted into the inside of the limiting grooves (6).

4. The anti-clogging sewage pump as described in claim 1, characterized in that: The drainage pipe (8) is fixedly installed on the outer surface of the sewage pump body (1), and the outer surface of the drainage pipe (8) away from the sewage pump body (1) is provided with external threads.

5. The anti-clogging sewage pump as described in claim 1, characterized in that: The top surface of the rotating disk (501) is equipped with a plurality of anti-blocking blades (502) arranged in a circumferential array, and one side of each of the plurality of anti-blocking blades (502) is close to the outer surface of the circular retaining ring (2).

6. The anti-clogging sewage pump as described in claim 1, characterized in that: A lifting handle (9) is fixedly installed on the outer surface of the sewage pump body (1) near the top.

Citation Information

Patent Citations

  • Anti-blocking sewage pump

    CN220716116U