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 existing centrifugal pump filter screen cannot be disassembled or is inconvenient to disassemble, so that the filter screen is blocked, and use is affected is solved. The novel centrifugal pump comprises a pump body and a front end cover arranged at the front end of the pump body, the front end cover is provided with a water inlet end assembly, the water inlet end assembly comprises an outer threaded sleeve formed on the front end cover and a water inlet pipeline connected to the outer threaded sleeve in a threaded mode, and a plurality of guide shafts distributed circumferentially are formed at the front end of the outer threaded sleeve; a filter frame limited by a guide shaft is mounted at the front end of the filter frame, a filter screen is arranged in the middle of the filter frame, a U-shaped frame clamped on the guide shaft is arranged on the periphery of the filter frame, and the U-shaped frame is fixedly connected with the guide shaft through a screw rod. The utility model has the advantage that the filter screen is convenient to clean, disassemble and assemble.

Description

Technical Field

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

[0002] At present, a filter screen is externally installed at the input end of a centrifugal pump on the market. However, usually, the filter screen cannot be disassembled or is inconvenient to disassemble. If it is a detachable filter screen, the structure is relatively complex and the disassembly is troublesome. If the filter screen is inconvenient to disassemble, impurities will adhere and remain after a long time, affecting the use. Summary of the Invention

[0003] The purpose of the utility model is to provide a novel centrifugal pump with a filter screen that is convenient to replace for the problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A novel centrifugal pump includes a pump body and a front end cover arranged at the front end of the pump body. The front end cover is provided with a water inlet end assembly. The water inlet end assembly includes an external thread sleeve formed on the front end cover and a water inlet pipe threadedly connected to the external thread sleeve. A plurality of guide shafts distributed in a circumferential manner are formed at the front end of the external thread sleeve, and a filter rack limited by the guide shafts is installed at the front end. A filter screen is arranged in the middle of the filter rack. A U-shaped rack clamped on the guide shafts is arranged on the periphery of the filter rack. The U-shaped rack and the guide shafts are fixedly connected by a screw rod.

[0005] In the above-mentioned novel centrifugal pump, a sealing ring is arranged between the filter rack and the end of the external thread sleeve.

[0006] Compared with the prior art, the novel centrifugal pump of the utility model has the advantages that the filter screen is convenient to clean and disassemble and assemble. Brief Description of the Drawings

[0007] Figure 1 It is a three-dimensional view of the novel centrifugal pump.

[0008] Figure 2 It is a three-dimensional view of the novel centrifugal pump.

[0009] In the figure, 1, pump body; 2, front end cover; 3, external thread sleeve; 4, water inlet pipe; 5, guide shaft; 6, filter rack; 7, filter screen; 8, U-shaped rack; 9, screw rod. Detailed Description of the Invention

[0010] The following are specific embodiments of the utility model in combination with the drawings, and the technical solutions of the utility model are further described, but the utility model is not limited to these embodiments.

[0011] Such as Figure 1 、 Figure 2As shown in the figure, the new type of centrifugal pump includes a pump body 1 and a front end cover 2 arranged at the front end of the pump body 1. An inlet end assembly is provided on the front end cover 2. The inlet end assembly includes an external thread sleeve 3 formed on the front end cover 2 and a water inlet pipe 4 threadedly connected to the external thread sleeve 3. A number of guide shafts 5 distributed in a circumferential manner are formed at the front end of the external thread sleeve 3, and a filter rack 6 limited by the guide shafts 5 is installed at the front end. A filter net 7 is provided in the middle of the filter rack 6. A U-shaped frame 8 clamped on the guide shafts 5 is provided on the periphery of the filter rack 6. The U-shaped frame 8 and the guide shafts 5 are fixedly connected by a screw 9. First, it will not affect the connection of the water inlet pipe 4. Second, when disassembling, the connecting pipe is removed, and the impurities adhere to the filter net, so simple cleaning can be carried out. If it is more convenient, each screw 9 can be removed for in-depth cleaning of the filter net.

[0012] Preferably, a sealing ring is provided between the end of the filter rack 6 and the external thread sleeve 3.

[0013] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0014] Although terms such as pump body 1, front end cover 2, external thread sleeve 3, water inlet pipe 4, guide shaft 5, filter rack 6, filter net 7, U-shaped frame 8, screw 9, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A novel centrifugal pump, comprising a pump body (1) and a front end cover (2) arranged at the front end of the pump body (1), characterized in that: The front end cover (2) is provided with a water inlet end assembly, the water inlet end assembly comprising an externally threaded sleeve (3) formed on the front end cover (2) and a water inlet pipe (4) threadedly connected to the externally threaded sleeve (3), a plurality of guide shafts (5) distributed along a circumference are formed on the front end of the externally threaded sleeve (3), and a filter frame (6) limited by the guide shaft (5) is installed on the front end, a filter screen (7) is provided in the middle of the filter frame (6), and a U-shaped frame (8) is provided around the filter frame (6) and is clamped on the guide shaft (5), and the U-shaped frame (8) and the guide shaft (5) are fixedly connected via a screw (9).

2. A novel centrifugal pump according to claim 1, characterized in that: A sealing ring is provided between the filter frame (6) and the end of the external threaded sleeve (3).

Images