Novel sewage pump

Abstract

The utility model provides a novel sewage pump, and belongs to the field of pumps. The problem that a sewage pump is easily blocked is solved. The novel sewage pump comprises a pump body with a water inlet and a water outlet, the water inlet of the pump body extends downwards in the axial direction to form a blocking assembly, the blocking assembly comprises a baffle and a plurality of connecting ribs, through holes are formed in the baffle, and the connecting ribs are sequentially distributed at intervals in the circumferential direction along the outer edge of the baffle. The connecting rib, the baffle and the water inlet of the pump body are of an integrally-formed structure, the connecting rib, the baffle and the water inlet of the pump body are structurally matched to form a water inlet cavity, a crushing device is arranged in the water inlet cavity and comprises a rotating cylinder, a crushing cutter head and an auxiliary cutter head, and a plurality of cutter tooth pieces used for crushing and cutting are arranged on the outer edge of the crushing cutter head. The cross section of each cutter tooth piece is of an L-shaped structure, an auxiliary blade is arranged at the lower end of each cutter tooth piece, and a cutting included angle is formed between each auxiliary blade and the lower end of the corresponding cutter tooth piece. The utility model has the advantage of anti-clogging.

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] When a sewage pump drives an impeller to rotate via a motor, the pressure at the center of the impeller decreases, creating a negative pressure. Sewage is then drawn into the pump body through the inlet. Subsequently, the sewage is accelerated by the impeller, and its flow velocity gradually increases. Finally, the accelerated sewage passes through the pump's volute or diffuser, where it is converted into pressure energy and discharged from the outlet at a higher speed and pressure.

[0003] Sewage pumps play a crucial role in sewage treatment systems, responsible for pumping sewage from lower levels to higher levels or treatment facilities. However, sewage often contains various impurities such as leaves, plastic bags, and stones, which can easily clog sewage pumps, affecting their normal operation and even causing equipment damage. Although existing sewage pumps have implemented some anti-clogging measures, the effects are not ideal, and problems such as easy clogging and frequent maintenance still exist. 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 an inlet and an outlet, characterized in that a blocking component for preventing large impurities from entering the pump body extends axially downward at the inlet of the pump body. The blocking component includes a baffle and multiple connecting ribs, and the baffle is provided with a through hole to facilitate the flow of water.

[0006] The connecting ribs are arranged in a circumferential direction along the outer edge of the baffle, and are integrally formed with the baffle and the pump body inlet.

[0007] The connecting rib, baffle and pump body inlet structure are combined to form an inlet cavity;

[0008] A crushing device is installed inside the water inlet chamber to facilitate the crushing and cutting of easily entangled impurities. The crushing device is connected to the motor shaft inside the sewage pump and is driven to work synchronously when the sewage pump is running.

[0009] The crushing device includes a rotating drum that is driven and connected to the sewage pump motor, a crushing disc for crushing and cutting impurities, and an auxiliary disc for cutting and crushing.

[0010] The outer edge of the crushing disc is provided with a number of blades for crushing and cutting. The cross-section of the blades is L-shaped. Each blade has an auxiliary blade at its lower end to improve the crushing and cutting efficiency. The auxiliary blade and the lower end of the blade have a cutting angle to improve the crushing and cutting efficiency.

[0011] In the aforementioned novel sewage pump, the outer edge of the auxiliary blade is serrated, and the auxiliary cutter disc and the rotating cylinder are integrally formed and located below the rotating cylinder.

[0012] In the above-mentioned novel sewage pump, the crushing blade, auxiliary blade, and rotating cylinder are stacked sequentially inside the inlet chamber. Several auxiliary blades and toothed blades are integrally formed. At the center of the crushing blade, a toothed cylinder section extends axially downward and is used for crushing and cutting by the toothed blades cooperating with each other.

[0013] In the aforementioned novel sewage pump, the crushing device is coaxially arranged with the impeller inside the sewage pump, and the impeller and the crushing device are synchronously driven to rotate by the sewage pump motor.

[0014] Compared with existing technologies, this new type of sewage pump has the following advantages:

[0015] 1. The design includes a crushing device structure, which can effectively crush various solid impurities in sewage and pulverize and cut easily entangled impurities, significantly improving the sewage pump's throughput and working efficiency.

[0016] 2. The blocking component structure effectively prevents larger materials from rushing into the pump body and causing blockage, reducing the number of downtime maintenance and cleaning operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the new type of sewage pump.

[0018] Figure 2 This is a partial cross-sectional schematic diagram of the new type of sewage pump.

[0019] Figure 3 This is a three-dimensional structural diagram of the crushing device of this new type of sewage pump.

[0020] Figure 4 This is a three-dimensional structural diagram of the crushing device of this new type of sewage pump.

[0021] In the diagram, 1 is the pump body; 2 is the baffle; 3 is the connecting rib; 4 is the water inlet chamber; 5 is the rotating cylinder; 6 is the crushing disc; 7 is the auxiliary disc; 8 is the blade; 9 is the toothed cylinder; and 10 is the auxiliary blade. Detailed Implementation

[0022] 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.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this novel sewage pump includes a pump body 1 with an inlet and an outlet. An axially downward extending obstruction assembly extends from the inlet of the pump body 1 to prevent large impurities from entering the pump body 1. This obstruction assembly includes a baffle 2 and multiple connecting ribs 3. The baffle 2 has through holes to facilitate water flow. The connecting ribs 3 are arranged circumferentially along the outer edge of the baffle 2 and are integrally formed with the baffle and the inlet of the pump body 1. The connecting ribs 3, the baffle 2, and the inlet of the pump body 1 structurally cooperate to form an inlet cavity 4. Inside the inlet cavity 4 is a crusher / crusher to facilitate the crushing and cutting of easily entangled impurities. The device is connected to the motor shaft inside the sewage pump and drives the crushing device synchronously when the sewage pump is running. The crushing device includes a rotating cylinder 5 that is driven and connected to the sewage pump motor, a crushing disc 6 for crushing and cutting impurities, and an auxiliary disc 7 for cutting and crushing. Several cutting blades 8 for crushing and cutting are provided on the outer edge of the crushing disc 6. The cross-section of the cutting blades 8 is arranged in an L-shaped structure. Each cutting blade 8 has an auxiliary blade 10 at its lower end to improve the crushing and cutting efficiency. The auxiliary blade 10 and the lower end of the cutting blade 8 have a cutting angle to improve the cutting and crushing efficiency.

[0024] The blocking component structure effectively prevents larger materials from rushing into the pump body 1 and causing blockage, reducing the number of downtime maintenance and cleaning operations.

[0025] The crushing device structure can effectively crush various solid impurities in sewage and pulverize and cut easily entangled impurities, significantly improving the throughput and working efficiency of sewage pumps.

[0026] To further elaborate, in order to prevent sewage pump blockage and improve efficiency, the outer edge of the auxiliary blade 10 is set with a serrated structure. The auxiliary blade disc 7 and the rotating cylinder 5 are integrally formed and located below the rotating cylinder 5. The crushing blade disc 6, the auxiliary blade disc 7 and the rotating cylinder 5 are stacked in sequence inside the water inlet chamber 4. Several auxiliary blades 10 and the blade teeth 8 are integrally formed. The center of the crushing blade disc 6 has a toothed cylinder 9 that extends axially downward and cooperates with the blade teeth 8 for crushing and cutting.

[0027] To elaborate further, in order to drive the crushing device to work synchronously, the crushing device and the impeller inside the sewage pump are arranged in a coaxial structure, and the impeller and the crushing device are driven to rotate synchronously by the sewage pump motor.

[0028] 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 replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0029] Although this document uses a lot 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 kind of additional limitation would contradict the spirit of this invention.

Claims

1. A novel sewage pump, comprising a pump body (1) with an inlet and an outlet, characterized in that, The pump body (1) has a blocking component extending axially downward at the water inlet to prevent large impurities from entering the pump body (1). The blocking component includes a baffle (2) and multiple connecting ribs (3). The baffle (2) has a through hole to facilitate water flow. The connecting ribs (3) are arranged in a circumferential direction along the outer edge of the baffle (2), and are integrally formed with the baffle and the inlet of the pump body (1); The connecting rib (3), baffle (2) and pump body (1) at the water inlet are structurally combined to form a water inlet cavity (4); A crushing device is provided inside the water inlet chamber (4) to facilitate the crushing and cutting of easily entangled impurities. The crushing device is connected to the motor shaft inside the sewage pump and is driven to work synchronously when the sewage pump is running. The crushing device includes a rotating drum (5) driven by a sewage pump motor, a crushing disc (6) for crushing and cutting impurities, and an auxiliary disc (7) for crushing and cutting. The outer edge of the crushing disc (6) is provided with a number of crushing and cutting blades (8). The cross-section of the blades (8) is L-shaped. Each blade (8) is provided with an auxiliary blade (10) at its lower end, which can improve the crushing and cutting efficiency. The auxiliary blade (10) and the lower end of the blade (8) have a cutting angle that can improve the crushing and cutting efficiency.

2. The novel sewage pump according to claim 1, characterized in that, The auxiliary blade (10) has a serrated outer edge, and the auxiliary blade disc (7) and the rotating cylinder (5) are integrally formed and located below the rotating cylinder (5).

3. A novel sewage pump according to claim 1, characterized in that, The crushing disc (6), auxiliary disc (7) and rotating cylinder (5) are stacked in sequence inside the water inlet chamber (4). Several auxiliary blades (10) and blade teeth (8) are integrally formed. The crushing disc (6) has a toothed cylinder (9) that extends axially downward at the center and cooperates with each other for crushing and cutting.

4. A novel sewage pump according to claim 1, characterized in that, The crushing device is coaxially arranged with the impeller inside the sewage pump, and the impeller and the crushing device are synchronously driven to rotate by the sewage pump motor.

Images