A clog-resistant cutting pump

By incorporating a filter screen and sealing structure into the cutting pump, the problem of impeller damage caused by large debris entering is solved, achieving both anti-clogging and sealing effects, and simplifying the cleaning and installation process of the filter screen.

CN224339234UActive Publication Date: 2026-06-09YOUJIA (GUANGZHOU) WATER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YOUJIA (GUANGZHOU) WATER TECH CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

When the cutting pump is running, large debris in the sewage can easily enter the pump and collide with the impeller, causing damage to the impeller.

Method used

A clog-resistant cutting pump was designed. By setting up a filter screen cylinder, a first ring, a second ring, a cover, a spherical protrusion, and a bidirectional screw, the filter screen cylinder can be easily disassembled and installed. Rubber sealing gaskets are used to improve the sealing performance and prevent large-volume debris from entering the pump body.

Benefits of technology

It effectively prevents large debris from entering the cutting pump, protects the impeller, and facilitates the cleaning and replacement of the filter screen, improving sealing performance and preventing clogging.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224339234U_ABST
    Figure CN224339234U_ABST
Patent Text Reader

Abstract

This utility model discloses an anti-clogging cutting pump, belonging to the field of cutting pump technology. It includes a cutting pump body, an input pipe fixedly connected to one side of the body, a first ring fixedly connected to one end of the input pipe, a second ring on one side of the first ring, a conveying pipe fixedly connected to one side of the second ring, an installation ring between the first and second rings, a filter screen fixedly connected inside the installation ring, and rubber sealing gaskets on both sides of the installation ring. Two covers are fitted onto the input pipe. This anti-clogging cutting pump, through the inclusion of a filter screen, first ring, second ring, covers, spherical protrusions, and a bidirectional lead screw, filters large-volume debris through the filter screen, preventing it from entering the pump body and damaging the impeller. It also facilitates the disassembly and cleaning of the filter screen, preventing clogging after prolonged use.
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Description

Technical Field

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

[0002] A cutting pump, also known as a septic tank pump or a double-blade cutting pump, is a type of sewage pump. Compared to ordinary sewage pumps, cutting pumps differ structurally. At the bottom of the pump body is a set of high-strength cutting impellers that can easily shred fibers, feces, branches, and other debris. The pump has a compact structure and good environmental adaptability. During operation, the cutting pump uses the internal cutting impellers to cut and pulverize small debris. However, large debris in the sewage can easily enter the pump, and collisions with the impeller can easily damage it. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides an anti-clogging cutting pump, which solves the problem that while the cutting impeller inside the pump can cut and crush some small debris during operation, large debris in sewage can also easily enter the cutting pump, and these large debris can easily damage the impeller after colliding with it.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging cutting pump, comprising a cutting pump body, an input pipe fixedly connected to one side of the cutting pump body, a first ring fixedly connected to one end of the input pipe, a second ring provided on one side of the first ring, a conveying pipe fixedly connected to one side of the second ring, an installation ring provided between the first ring and the second ring, a filter screen cylinder fixedly connected inside the installation ring, rubber sealing gaskets provided on both sides of the installation ring, and two covers fitted on the input pipe;

[0005] The cover is fixedly connected to a second fixing plate, and there are two second fixing plates. A two-way screw is threadedly connected to the two second fixing plates. The cover is fixedly connected to a first fixing plate, and there are two first fixing plates. An intermediate ring is provided between the two first fixing plates. A limit rod is fixedly connected inside the intermediate ring. Several spherical protrusions are fixedly connected to both sides of the inner wall of the cover. Four inclined surfaces are provided inside the cover.

[0006] As a further embodiment of this utility model: the input pipe is connected to the cutting pump body, and a second circular plate is fixedly connected to the bottom end of the bidirectional lead screw.

[0007] As a further embodiment of this utility model: the limiting rod passes through the two first fixing plates, and the first fixing plates are slidably connected to the limiting rod.

[0008] As a further embodiment of this utility model: a knob is fixedly connected to the top of the bidirectional lead screw, and the knob has several grooves.

[0009] As a further embodiment of this utility model: an output pipe is fixedly connected to one side of the cutting pump body, and the output pipe is connected to the cutting pump body.

[0010] As a further embodiment of this utility model: both ends of the limiting rod are fixedly connected to a first circular plate, and the conveying pipe is located on one side of the input pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This anti-clogging cutting pump, through the configuration of a filter cylinder, a first ring, a second ring, a cover, a spherical protrusion, and a bidirectional lead screw, allows for easy disassembly and cleaning of the filter cylinder. When the filter cylinder needs to be disassembled and cleaned, rotating the knob drives the bidirectional lead screw. Since the upper and lower parts of the bidirectional lead screw have opposite thread directions, and the two second fixing plates are threaded onto opposite thread areas on the bidirectional lead screw, rotation causes the two second fixing plates to move away from the cover. This allows the second ring to separate from the first ring, enabling the filter cylinder to be disassembled and cleaned. When installing the filter cylinder, two rubber sealing gaskets are placed on the filter cylinder, positioned on either side of the mounting ring. One end of the filter cylinder is then placed... The feed tube is inserted into the inlet pipe, and the delivery pipe is fitted onto the other end of the filter cylinder. The second ring is brought close to the first ring. At this time, the knob is rotated in the opposite direction to drive the bidirectional screw to rotate, so that the two covers are brought closer to each other. When the spherical protrusion contacts the second ring and the first ring, the spherical protrusion will squeeze the first ring and the second ring, so that the first ring and the second ring tend to move closer to each other, thus making the first ring and the second ring fit tightly together, completing the installation of the filter cylinder. The cutting pump filters large-volume debris through the filter cylinder, preventing it from entering the cutting pump body and damaging the impeller. It also facilitates the disassembly and cleaning of the filter cylinder, preventing the filter cylinder from becoming clogged after long-term use.

[0013] 2. This anti-clogging cutting pump, by setting up rubber sealing gaskets, a first ring, a second ring, a bidirectional screw, and a spherical protrusion, places two rubber sealing gaskets on the filter screen cylinder, with the two rubber sealing gaskets located on opposite sides of the mounting ring. One end of the filter screen cylinder is placed inside the input pipe, and the delivery pipe is fitted over the other end of the filter screen cylinder. The second ring is brought close to the first ring. At this time, the knob is rotated in the opposite direction, driving the bidirectional screw to rotate, causing the two covers to move closer together. When the spherical protrusion contacts the second ring and the first ring, the spherical protrusion will squeeze the first ring and the second ring, causing the first ring and the second ring to tend to move closer together. This cutting pump can make the first ring and the second ring fit tightly together, and at the same time, the first ring and the second ring will press the rubber sealing gasket tightly, greatly improving the sealing performance of the rubber sealing gasket. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the bidirectional lead screw of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the cover body of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the present invention in the form of a partial explosion.

[0018] In the diagram: 1. Cutting pump body; 2. Output pipe; 3. Input pipe; 4. Delivery pipe; 5. Cover; 6. Limiting rod; 7. First circular plate; 8. Intermediate ring; 9. First fixing plate; 10. Second fixing plate; 11. Two-way lead screw; 12. Knob; 13. Second circular plate; 14. Spherical protrusion; 15. Inclined surface; 16. First ring; 17. Rubber sealing gasket; 18. Mounting ring; 19. Filter screen cylinder; 20. Second ring. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figure 1-4As shown, this utility model provides a technical solution: an anti-clogging cutting pump, including a cutting pump body 1, an input pipe 3 fixedly connected to one side of the cutting pump body 1, the input pipe 3 communicating with the cutting pump body 1, a second circular plate 13 fixedly connected to the bottom end of a bidirectional lead screw 11, a first circular ring 16 fixedly connected to one end of the input pipe 3, a second circular ring 20 provided on one side of the first circular ring 16, a conveying pipe 4 fixedly connected to one side of the second circular ring 20, an installation ring 18 provided between the first circular ring 16 and the second circular ring 20, a filter screen 19 fixedly connected inside the installation ring 18, because the filter screen 19 is provided, large-volume debris is filtered through the filter screen 19 to prevent it from entering the cutting pump body 1 and damaging the impeller.

[0021] Rubber sealing gaskets 17 are provided on both sides of the mounting ring 18. Because of the rubber sealing gaskets 17, when the first ring 16 and the second ring 20 are tightly fitted together, the first ring 16 and the second ring 20 will press the rubber sealing gaskets 17 together, which greatly improves the sealing performance of the rubber sealing gaskets 17. Two covers 5 are fitted on the input pipe 3. Two second fixing plates 10 are fixedly connected to the covers 5. Two second fixing plates 10 are threadedly connected to the two second fixing plates 10. A double-acting screw 11 is fixedly connected to the top of the double-acting screw 11. A knob 12 is fixedly connected to the top of the knob 12. Several grooves are opened on the knob 12. Because several grooves are opened on the knob 12, the friction can be increased, making it easier for personnel to turn the knob 12 and improving the ease of operation. A first fixing plate 9 is fixedly connected to the cover 5.

[0022] There are two first fixing plates 9, and an intermediate ring 8 is provided between the two first fixing plates 9. A limit rod 6 is fixedly connected inside the intermediate ring 8. Because of the limit rod 6, when the cover 5 moves, the first fixing plate 9 will slide on the limit rod 6. The limit rod 6 can limit the first fixing plate 9 and the cover 5, and improve the stability of the movement of the cover 5. The limit rod 6 passes through the two first fixing plates 9, and the first fixing plate 9 is slidably connected to the limit rod 6. Several spherical protrusions 14 are fixedly connected to both sides of the inner wall of the cover 5.

[0023] The inside of the cover 5 is provided with four inclined surfaces 15. Because of the inclined surfaces 15, when two covers 5 approach each other, the inclined surfaces 15 have a guiding effect, which allows the first ring 16 and the second ring 20 to gradually approach each other along the direction of the inclined surfaces 15, instead of colliding directly. This makes it easier to fasten the cover 5 onto the first ring 16 and the second ring 20. The output pipe 2 is fixedly connected to one side of the cutting pump body 1. The output pipe 2 is connected to the cutting pump body 1. The first circular plate 7 is fixedly connected to both ends of the limiting rod 6. The conveying pipe 4 is located on one side of the input pipe 3.

[0024] The working principle of this utility model is as follows:

[0025] When the filter cylinder 19 needs to be disassembled and cleaned, turn the knob 12 to drive the bidirectional lead screw 11 to rotate. Since the upper and lower parts of the bidirectional lead screw 11 have opposite thread directions, and the two second fixing plates 10 are respectively threaded onto the opposite thread areas on the bidirectional lead screw 11, when the bidirectional lead screw 11 rotates, the two second fixing plates 10 will move away from the cover 5. At this time, the second ring 20 can be separated from the first ring 16, and the filter cylinder 19 can be disassembled and cleaned. When the filter cylinder 19 needs to be installed, put the two rubber sealing gaskets 17 on the filter cylinder 19, so that the two rubber sealing gaskets 17 are respectively located on the mounting ring. On both sides of 18, insert one end of the filter cylinder 19 into the input pipe 3 and put the delivery pipe 4 on the other end of the filter cylinder 19. Bring the second ring 20 close to the first ring 16. At this time, rotate the knob 12 in the opposite direction to drive the bidirectional screw 11 to rotate, so that the two covers 5 are close to each other. When the spherical protrusion 14 contacts the second ring 20 and the first ring 16, the spherical protrusion 14 will squeeze the first ring 16 and the second ring 20, so that the first ring 16 and the second ring 20 have a tendency to move closer to each other, so that the first ring 16 and the second ring 20 are tightly fitted together, and the installation of the filter cylinder 19 is completed.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A clog-resistant cutting pump, comprising a cutting pump body (1), characterized in that: The cutting pump body (1) is fixedly connected to one side of an input pipe (3), and one end of the input pipe (3) is fixedly connected to a first ring (16). A second ring (20) is provided on one side of the first ring (16), and a conveying pipe (4) is fixedly connected on one side of the second ring (20). An installation ring (18) is provided between the first ring (16) and the second ring (20). A filter screen cylinder (19) is fixedly connected inside the installation ring (18). Rubber sealing gaskets (17) are provided on both sides of the installation ring (18). Two covers (5) are fitted on the input pipe (3). The cover (5) is fixedly connected to a second fixing plate (10), and there are two second fixing plates (10). Two bidirectional screw rods (11) are threaded onto the two second fixing plates (10). The cover (5) is fixedly connected to a first fixing plate (9), and there are two first fixing plates (9). An intermediate ring (8) is provided between the two first fixing plates (9). A limit rod (6) is fixedly connected inside the intermediate ring (8). Several spherical protrusions (14) are fixedly connected to both sides of the inner wall of the cover (5). Four inclined surfaces (15) are provided inside the cover (5).

2. The anti-clogging cutting pump according to claim 1, characterized in that: The input pipe (3) is connected to the cutting pump body (1), and the bottom end of the bidirectional screw (11) is fixedly connected to a second circular plate (13).

3. The anti-clogging cutting pump according to claim 1, characterized in that: The limiting rod (6) passes through the two first fixing plates (9), and the first fixing plates (9) are slidably connected to the limiting rod (6).

4. The anti-clogging cutting pump according to claim 1, characterized in that: The top end of the bidirectional lead screw (11) is fixedly connected to a knob (12), and the knob (12) has several grooves.

5. The anti-clogging cutting pump according to claim 1, characterized in that: An output pipe (2) is fixedly connected to one side of the cutting pump body (1), and the output pipe (2) is connected to the cutting pump body (1).

6. The anti-clogging cutting pump according to claim 1, characterized in that: The limiting rod (6) has a first circular plate (7) fixedly connected to both ends, and the conveying pipe (4) is located on one side of the input pipe (3).