Novel centrifugal pump

Abstract

The utility model provides a novel centrifugal pump, and belongs to the technical field of water pumps. The problem that an impeller in an existing centrifugal pump is simple in structure, and consequently working efficiency is poor is solved. The novel centrifugal pump comprises a pump body with a water inlet end and a water outlet end, a motor is installed at the rear end of the pump body, an impeller assembly driven by the motor is arranged in the pump body, the impeller assembly is formed by combining a front impeller and a rear impeller, the end face, facing the water inlet end, of the front impeller is of an arc-shaped face structure, and a plurality of first blades are formed on the other end face of the front impeller. A plurality of second blades are formed on the front end face of the rear impeller, the first blades and the second blades are arranged in a staggered mode so that a flow guide area can be formed between each first blade and the adjacent second blade, and a plurality of water throwing grooves are formed in the peripheral wall of the rear impeller. The combined type multi-stage impeller has the advantages that the water outlet efficiency is high and the working efficiency is improved due to a combined type multi-stage impeller structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps and relates to a centrifugal pump, in particular to a novel centrifugal pump. Background Art

[0002] The centrifugal pump is equipped with an impeller inside, and the water is discharged from the water outlet of the centrifugal pump through the centrifugal force generated by the rotation of the impeller. However, the impeller inside the centrifugal pump generally has a single structure and poor diversion effect, resulting in poor water discharge efficiency. Summary of the invention

[0003] The utility model aims to solve the above problems existing in the prior art and provides a novel centrifugal pump with a multi-stage composite impeller structure and improved working efficiency.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a new type of centrifugal pump, including a pump body with an inlet end and an outlet end, a motor is installed at the rear end of the pump body, and is characterized in that an impeller assembly driven by a motor is arranged in the pump body, and an axial hole for the shaft of the power supply machine to pass through is provided in the middle of the impeller assembly, and the impeller assembly is composed of a front impeller and a rear impeller. The end face of the front impeller facing the water inlet end adopts an arc surface structure, and a plurality of first blades are formed on the other end face thereof, and a plurality of second blades are formed on the front end face of the rear impeller. The plurality of the first blades and the plurality of the second blades are staggered to form a guide area between each first blade and the second blade adjacent to it, and the peripheral wall of the rear impeller is provided with a plurality of water throwing grooves, and a plurality of blade seats are formed on the rear impeller through the plurality of the water throwing grooves, and each of the second blades is formed on the corresponding blade seat.

[0005] In the above-mentioned novel centrifugal pump, the water-throwing trough is in a triangular structure.

[0006] In the above-mentioned novel centrifugal pump, the front impeller and the rear impeller are integrally injection molded.

[0007] Compared with the prior art, the novel centrifugal pump has a composite multi-stage impeller structure, which achieves the advantages of high water discharge efficiency and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a stereoscopic diagram of the novel centrifugal pump.

[0009] Figure 2 This is a partial internal structure diagram of the new centrifugal pump.

[0010] Figure 3 It is a three-dimensional diagram of the impeller assembly.

[0011] Figure 4 It is a three-dimensional diagram of the rear impeller.

[0012] In the figure, 1, water inlet end; 2, water outlet end; 3, pump body; 4, motor; 5, front impeller; 6, rear impeller; 7, first blade; 8, second blade; 9, guide area; 10, water trough; 11, blade seat. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the novel centrifugal pump comprises a pump body 3 with a water inlet end 1 and a water outlet end 2, a motor 4 is installed at the rear end of the pump body 3, an impeller assembly driven by the motor 4 is arranged in the pump body 3, a shaft hole for the shaft of the motor 4 to pass through the middle of the impeller assembly, and the impeller assembly is composed of a front impeller 5 and a rear impeller 6. The end surface of the front impeller 5 facing the water inlet end 1 adopts an arc surface structure to stabilize the flow direction of the water flow, and a plurality of first blades 7 are formed on the other end surface, and a plurality of second blades 8 are formed on the front end surface of the rear impeller 6. The plurality of first blades 7 and the plurality of second blades 8 are formed. 8 are staggered so that a guide area 9 is formed between each first blade 7 and the second blade 8 adjacent thereto, and a plurality of water-throwing grooves 10 are provided on the peripheral wall of the rear impeller 6. A plurality of blade seats 11 are formed on the rear impeller 6 through the plurality of water-throwing grooves 10, and each second blade 8 is formed on the corresponding blade seat 11. The impeller assembly rotates to generate centrifugal force, and the water flows along the guide area 9 between the first blade 7 and the second blade 8 toward the water outlet end 2. The formed water-throwing grooves 10 can increase the contact area with the water flow, thereby forming a large-area water-throwing effect and improving the water outlet efficiency.

[0015] Preferably, the water trough 10 has a triangular structure.

[0016] Preferably, the front impeller 5 and the rear impeller 6 are integrally injection molded.

[0017] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0018] Although the terms such as water inlet 1, water outlet 2, pump body 3, motor 4, front impeller 5, rear impeller 6, first blade 7, second blade 8, guide area 9, water sling 10, blade seat 11 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A novel centrifugal pump, comprising a pump body (3) with a water inlet end (1) and a water outlet end (2), a motor (4) being mounted at the rear end of the pump body (3), characterized in that: The pump body (3) is provided with an impeller assembly driven by a motor (4), the middle of the impeller assembly having an axial hole through which the shaft of the motor (4) passes, the impeller assembly being composed of a front impeller (5) and a rear impeller (6), the end surface of the front impeller (5) facing the water inlet end (1) adopts an arc surface structure, and a plurality of first blades (7) are formed on the other end surface thereof, the front end surface of the rear impeller (6) is formed with a plurality of second blades (8), the plurality of first blades (7) and the plurality of second blades (8) are arranged alternately so that a guide area (9) is formed between each first blade (7) and the second blade (8) adjacent thereto, the peripheral wall of the rear impeller (6) is provided with a plurality of water-throwing grooves (10), a plurality of blade seats (11) are formed on the rear impeller (6) through the plurality of water-throwing grooves (10), and each second blade (8) is formed on a corresponding blade seat (11).

2. A novel centrifugal pump according to claim 1, characterized in that: The water-throwing trough (10) has a triangular structure.

3. A novel centrifugal pump according to claim 1, characterized in that: The front impeller (5) and the rear impeller (6) are integrally injection molded.

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