Novel sewage pump

Abstract

The utility model provides a novel sewage pump, and belongs to the field of pumps. The problem that the water outlet of the sewage pump is easily blocked is solved. The novel sewage pump comprises a pump body with a water inlet port and a mincing device which is located in the water inlet port of the pump body and can mince easily-wound objects, the mincing device is synchronously driven by a driving motor of the sewage pump to rotate, and the mincing device comprises a plurality of cutting tools used for mincing and cutting and a coupling piece arranged at the end of an output shaft of the driving motor. The multiple cutting tools are distributed at intervals along the outer portion of the coupling piece, multiple layers of mutually-staggered mincing areas are formed, the cutting tools are of a T-shaped hammer-shaped structure, cutting edges are arranged at the outermost ends of the cutting tools, the longitudinal sections of the cutting tools are of a V-shaped inclined structure, and the cutting tools are used for rapidly staggered mincing and cutting objects easy to wind. The utility model has the advantage of preventing blockage.

Description

Technical Field

[0001] This utility model belongs to the field of pumps, and relates to a sewage pump, and more particularly to a novel sewage pump. Background Technology

[0002] A sewage pump is a type of pump used for turbid fluids containing a large amount of solids, fibers, and other impurities. It typically includes a drive motor and a pump body. The pump body includes an inner cavity, an inlet pipe, and an outlet pipe. An impeller is installed in the inner cavity and is fixed on the motor output shaft. The impeller is rotated by the motor, causing the fluid entering the inner cavity through the inlet to undergo centrifugal motion. During the centrifugal motion, the medium is thrown out through the outlet, creating a vacuum state in the inner cavity, thereby drawing the medium from the inlet pipe into the inner cavity to form a circulation.

[0003] Its inlet is easily clogged by fibers, hair and other entangled materials, requiring frequent shutdowns for cleaning, which affects continuous operation. The independent crushing device requires additional power, increasing costs and energy consumption. The static filter screen is easily clogged, reducing flow efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel sewage pump to solve these issues.

[0005] The purpose of this utility model can be achieved through the following technical solution: a new type of sewage pump, including a pump body with a water inlet port, characterized in that a shredding device for shredding easily tangled objects is provided inside the water inlet port of the pump body, and the shredding device is synchronously driven to rotate by the drive motor of the sewage pump.

[0006] The shredding device includes multiple cutting blades for shredding and cutting, and a coupling at the end of the output shaft of the drive motor. The multiple cutting blades are arranged at intervals along the outside of the coupling and form multiple layers of interlaced shredding areas.

[0007] The cutting tool is configured with a T-shaped hammer structure, with a cutting edge at its outermost end. The longitudinal section of the cutting tool is configured with a V-shaped inclined structure, which is used to quickly and intermittently shred and cut easily entangled objects.

[0008] In the aforementioned novel sewage pump, the V-shaped inclined structure of the cutting tool has an inclination angle of 15°-60°.

[0009] In the aforementioned novel sewage pump, in the multi-layered, interlocking shredding area, the cutting blades of adjacent layers are arranged in a staggered 30° pattern.

[0010] In the aforementioned novel sewage pump, the cutting edge of the T-shaped hammer structure of the cutting tool is tangent to the rotation direction.

[0011] In the aforementioned novel sewage pump, the outer end of the cutting blade closest to the inlet extends to the edge of the inlet, forming an anti-entanglement barrier at the outer end.

[0012] In the aforementioned novel sewage pump, the surface of the cutting tool is provided with a wear-resistant alloy coating.

[0013] Compared with existing technologies, this new sewage pump forms a continuous cutting zone through multiple layers of staggered blades, which can shred easily entangled materials such as fibers and plastic bags in layers, significantly reducing the risk of clogging. At the same time, the V-shaped inclined and tangential blade design can improve cutting efficiency and reduce the probability of debris being pushed away from the inlet. Attached Figure Description

[0014] Figure 1 This is a partial cross-sectional three-dimensional structural diagram of this new type of sewage pump.

[0015] In the diagram, 1 is the pump body; 2 is the water inlet port; 3 is the shredder; 4 is the coupling; 5 is the cutting tool; and 6 is the cutting blade. Detailed Implementation

[0016] 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.

[0017] like Figure 1 As shown, this novel sewage pump includes a pump body 1 with an inlet port 2. Inside the inlet port 2 of the pump body 1, there is a shredding device 3 for shredding easily entangled objects. The shredding device 3 is synchronously driven to rotate by the drive motor of the sewage pump. The shredding device 3 includes multiple cutting blades 5 for shredding and cutting and a coupling 4 located at the end of the output shaft of the drive motor. The multiple cutting blades 5 are arranged at intervals along the outside of the coupling 4 to form multiple layers of interlaced shredding areas. The cutting blades 5 are T-shaped hammer-shaped structures with cutting edges 6 at their outermost ends. The longitudinal cross-section of the cutting blades 5 is V-shaped inclined structure for quickly and interlaced shredding and cutting of easily entangled objects.

[0018] The V-shaped inclined structure of the cutting blade 5 has an inclination angle of 15°-60°. In the multi-layered, interlocking shredding area, the arrangement directions of adjacent layers of cutting blades 5 are staggered at 30°. In the T-shaped hammer structure of the cutting blade 5, the cutting edge 6 is tangent to the rotation direction. The outer end of the cutting blade 5 closest to the water inlet port 2 extends to the edge of the water inlet port 2, forming an outer end anti-entanglement barrier. The surface of the cutting blade 5 is coated with a wear-resistant alloy coating.

[0019] A shredder 3 is installed inside the inlet port 2 of the pump body 1, and is synchronously driven by the drive motor of the sewage pump, requiring no additional power source. Multiple T-shaped hammer-shaped cutting blades 5 are arranged in multiple layers at intervals along the outside of the coupling 4, with adjacent layers of blades staggered at 30° to form a multi-layer cutting mesh. The longitudinal cross-section of the blades is V-shaped and inclined (inclination angle 15°-60°). When rotating, the inclined surface pushes the debris towards the cutting area, and the V-shaped structure enhances the "biting" effect during cutting. The outermost cutting blade 5 extends to the edge of the inlet, forming a rotating outer end barrier that directly crushes the entangled material near the inlet. The cutting edge 6 is tangential to the direction of rotation, ensuring that the blade handles the debris by cutting rather than impacting, reducing resistance.

[0020] 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.

[0021] Although this document uses a considerable amount of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A novel sewage pump, comprising a pump body (1) with an inlet port (2), characterized in that, Inside the water inlet port (2) of the pump body (1), there is a shredding device (3) that can shred easily tangled objects. The shredding device (3) is driven to rotate synchronously by the drive motor of the sewage pump. The shredding device (3) includes a plurality of cutting blades (5) for shredding and cutting and a coupling (4) located at the end of the output shaft of the drive motor. The plurality of cutting blades (5) are arranged at intervals along the outside of the coupling (4) and form multiple layers of interlaced shredding areas. The cutting tool (5) is configured with a T-shaped hammer structure and has a cutting edge (6) at its outermost end. The longitudinal section of the cutting tool (5) is configured with a V-shaped inclined structure, which is used to quickly and intermittently shred and cut easily entangled objects.

2. The novel sewage pump according to claim 1, characterized in that, The V-shaped inclined structure of the cutting tool (5) has an inclination angle of 15°-60°.

3. The novel sewage pump according to claim 1, characterized in that, In the multi-layered, interlocking shredding area, the cutting blades (5) of adjacent layers are arranged in a staggered 30° pattern.

4. A novel sewage pump according to claim 1, characterized in that, In the T-shaped hammer structure of the cutting tool (5), the cutting edge (6) is tangent to the rotation direction.

5. A novel sewage pump according to claim 1, characterized in that, The outer end of the cutting tool (5) closest to the water inlet (2) extends to the edge of the water inlet (2) to form an outer end anti-entanglement barrier.

6. A novel sewage pump according to claim 1, characterized in that, The surface of the cutting tool (5) is coated with a wear-resistant alloy.

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