Centrifugal pump body
By designing a buffer chamber and a limiting block structure in the centrifugal pump body, the problem of excessive water pipe installation depth was solved, thereby improving the working efficiency and service life of the centrifugal pump.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Filing Date
- 2025-01-08
- Publication Date
- 2026-07-16
AI Technical Summary
The existing centrifugal pump body has an indeterminate structure when the outlet and water pipe are installed, which results in the water pipe being installed too deep, preventing water from entering the inlet and affecting the pump's working efficiency.
Design an integrally molded pump body with a buffer chamber and a limiting block structure. The buffer chamber is connected to the water inlet. The bottom of the buffer chamber has a protrusion and a limiting block. The limiting block is circumferentially distributed to prevent the water pipe from being installed too deep. The inner circumferential wall of the water inlet has internal threads.
This effectively prevents water pipes from being installed too deep, thus improving the working efficiency and service life of the centrifugal pump.
Smart Images
Figure CN2025071155_16072026_PF_FP_ABST
Abstract
Description
Centrifugal pump body TECHNICAL FIELD
[0001] The present application belongs to the technical field of pump body processing, and relates to a pump body, in particular to a centrifugal pump body. BACKGROUND
[0002] Pump is a kind of general machinery, and is widely used. With the development of water pump, various water pumps appear, and the names of the water pumps are various. The names and classifications of the water pumps in various water pump books are different. The centrifugal submersible pump is one of the water pumps, which mainly comprises a pump shell, an impeller, a pump shaft and a pump frame. Before starting, the pump should be filled with water. After starting, the rotating impeller drives the water in the pump to rotate at high speed. The water is thrown outwards and is pressed into the water outlet pipe. After the water is thrown out, the pressure near the impeller decreases, and a low pressure area is formed near the rotating shaft. The pressure in the low pressure area is much lower than the atmospheric pressure. The water outside the low pressure area enters the pump from the water inlet pipe under the action of the atmospheric pressure. The water entering the pump is thrown out again in the high-speed rotation of the impeller and is pressed into the water outlet pipe. The impeller rotates at high speed under the driving of the power machine, and the water is continuously pumped from the low place to the high place.
[0003] However, the water outlet of the existing centrifugal pump body is not provided with a limiting structure during installation of the water pipe, so that the installation depth of the water pipe is often too deep, which causes the water flow in the water inlet to be unable to enter, and seriously affects the working efficiency of the centrifugal pump. SUMMARY
[0004] The present application aims to solve the above problems by providing a centrifugal pump body.
[0005] The purpose of the present application can be achieved by the following technical scheme: a centrifugal pump body, characterized in that the pump body comprises a pump body main body which is formed in an integral structure, the pump body main body is provided with a water inlet connected with a water pipe, the pump body is provided with a buffer cavity for water flow buffering at the water inlet, an opening slot for water flow entering the cavity is formed on the bottom of the buffer cavity, a protruding part for water flow buffering is provided on the center of the bottom of the buffer cavity and protrudes upwards, the buffer cavity is connected with the water inlet, and a plurality of limiting blocks for preventing the water pipe from being assembled too deep are arranged on the outer peripheral wall of the protruding part.
[0006] In the centrifugal pump body, the number of the limiting blocks is three, the limiting blocks are arranged in the circumferential direction in sequence, and the heights of the limiting blocks are all lower than the water inlet.
[0007] In the centrifugal pump body, the protruding part is circular in cross section, the outer diameter of the protruding part is equal to the inner diameter of the water inlet, and the outer peripheral wall of the protruding part is provided with a rounded arc having a buffer drainage effect.
[0008] In the centrifugal pump body, the inner thread is provided on the inner peripheral wall of the water inlet and connected with the water pipe.
[0009] Compared with the prior art, the centrifugal pump body has a reasonable structure, can effectively prevent the problem that the water pipe cannot be installed due to excessive installation depth, greatly improves the working efficiency of the centrifugal pump, and prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 is a schematic view of the centrifugal pump body.
[0011] Fig. 2 is a schematic view of the centrifugal pump body.
[0012] Fig. 3 is a schematic view of the centrifugal pump body.
[0013] In the drawings, 1 is the main body of the pump, 2 is the water inlet, 3 is the buffer cavity, 4 is the opening slot, 5 is the protruding part, 6 is the limiting block, 7 is the inner thread, and 8 is the rounded arc. DETAILED DESCRIPTION
[0014] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.
[0015] As shown in Figs. 1, 2 and 3, the centrifugal pump body comprises a pump body 1 which is integrally formed, a water inlet 2 connected with a water pipe is provided on the pump body 1, a buffer cavity 3 for water flow buffering is provided in the pump body at the water inlet 2, an opening slot 4 for water flow into the cavity is provided on the bottom of the buffer cavity 3, a protruding part 5 for water flow buffering is provided on the center of the bottom of the buffer cavity 3, the buffer cavity 3 is in communication with the water inlet 2, and a plurality of limiting blocks 6 for preventing the water pipe from being assembled too deeply are provided on the outer peripheral wall of the protruding part 5, the number of the limiting blocks 6 is three, the limiting blocks 6 are arranged in the circumferential direction in sequence, and the heights of the limiting blocks 6 are all lower than the water inlet 2.
[0016] Working principle
[0017] When the pump body inlet 2 needs to be connected with the external water pipe, the water flow circulation effect is not good due to the deep water pipe connection. The structure is provided with a buffer cavity 3 at the pump body inlet 2, which is used for buffering the water flow into the pump body, and is provided with a protruding part 5 on the buffer cavity 3 body, and has a rounded arc 8 on the outer peripheral wall of the protruding part 5, which has a drainage effect. At the same time, the protruding part 5 is provided with three limiting blocks 6 in the circumferential direction, and the water pipe cannot be connected further when it is connected to this part, and the water flow circulation space is guaranteed, which not only improves the working efficiency of the centrifugal pump, but also improves the service life.
[0018] Further, the protruding part 5 is designed in a circular structure in cross section, and the outer diameter of the protruding part 5 is equal to the inner diameter of the water inlet 2, and the rounded arc 8 with buffering and drainage effect is arranged on the outer peripheral wall of the protruding part 5.
[0019] Further, the inner thread 7 connected with the water pipe is arranged on the inner peripheral wall of the water inlet 2.
[0020] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. A centrifugal pump body, characterized by The utility model provides a water pump, including the pump body main part (1) who sets up in the integral structure, the water inlet (2) that has connected with the water pipe has on the pump body main part (1), the buffer cavity (5) that water flow buffering is located in the water inlet (2) at in the pump body, the opening slot (6) that water flow enters the cavity is set up to the bottom of buffer cavity (5) on, the raised portion (5) that has the center part to the bottom of buffer cavity (5) has and is used for water flow buffering and is raised upward, the buffer cavity (5) is linked together with the water inlet (2), and along the raised portion (5) outer peripheral wall is equipped with a plurality of limiting block (7) for preventing water pipe assembly too deep.
2. A centrifugal pump body according to claim 1, characterized in that A plurality of limiting block (7) number is 3, the limiting block (7) is sequentially arranged in the circumferential direction, and the limiting block (7) height is all lower than the water inlet (2) place.
3. A centrifugal pump body according to claim 1, wherein The raised portion (5) cross section is designed in the circular structure, and the raised portion (5) outer diameter water inlet (2) inner diameter is equal, the raised portion (5) outer peripheral wall is set up with the rounded arc (8) having the buffer drainage effect.
4. A centrifugal pump body according to claim 1, wherein The inner thread that has connected with the water pipe is located on the inner peripheral wall of the water inlet (2).