Wear-resistant centrifugal pump with anti-falling assembly
By introducing a filter screen and an anti-detachment structure into the centrifugal pump, the problems of impeller wear and loose connection are solved, achieving wear resistance and anti-detachment effects.
Patent Information
- Application Number
- CN202520657116.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-09
AI Technical Summary
When a centrifugal pump is in use, impurities in the liquid can cause wear on the impeller, and the connection between the impeller and the rotor can easily loosen, leading to pump damage.
A wear-resistant centrifugal pump with anti-detachment components was designed, including a filter screen, embedded column, limiting ring, bolts, and cross plate structure, for filtering impurities and securing the connection between the impeller and the rotor.
It effectively prevents liquid impurities from wearing the impeller, improves the connection stability between the impeller and the rotor, and extends the service life of the centrifugal pump.
Smart Images

Figure CN223894413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a wear-resistant centrifugal pump with an anti-detachment component. Background Technology
[0002] A centrifugal pump is a type of pump that uses the centrifugal force generated when the impeller rotates to transport liquids. When the motor drives the pump shaft to rotate the impeller at high speed, the liquid is thrown towards the outer edge of the impeller under the action of centrifugal force and enters the pressure water pipeline through the flow channel of the volute, thereby realizing the transport of liquid. At the same time, a low-pressure zone is formed at the center of the impeller inlet, and the liquid in the suction tank continuously enters the impeller under the action of pressure difference, forming a continuous transport process. It is widely used in industrial, agricultural, construction and other fields.
[0003] Because the liquid comes into rapid contact with the impeller during the use of a centrifugal pump, impurities in the liquid directly impact the impeller, causing severe wear. As the drive motor rotates, it drives the impeller to rotate, generating a large centrifugal force, which can easily cause the connection between the impeller and the rotor to loosen, thus damaging the centrifugal pump. To address this, we propose a wear-resistant centrifugal pump with anti-detachment components. Utility Model Content
[0004] The main objective of this invention is to provide a wear-resistant centrifugal pump with an anti-detachment component, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A wear-resistant centrifugal pump with an anti-detachment component includes a mounting base. A drive motor is fixedly mounted on one side of the upper surface of the mounting base, and a centrifugal pump body is fixedly mounted on the other side of the upper surface of the mounting base. An anti-detachment structure is embedded inside the centrifugal pump body, and a water inlet is embedded on one side surface of the centrifugal pump body.
[0007] Preferably, the water inlet includes a water inlet pipe, a collection box, a door panel, a filter screen, a first screw hole, an embedded post, a limiting ring, a second screw hole, and a first bolt. The collection box is embedded on one side of the surface of the water inlet pipe, and the door panel is embedded on one side of the surface of the collection box. The limiting ring is embedded inside the water inlet pipe on one side of the collection box. The limiting ring has four sets of first screw holes on one side of its surface. The filter screen is embedded on the inner surface of the limiting ring. The embedded post is fixedly installed on the upper side of one side of the filter screen. The embedded post is three sets. The filter screen has a second screw hole on the lower side of its surface. The first bolt is embedded inside the second screw hole and the first screw hole.
[0008] Preferably, the centrifugal pump body includes an impeller, a first cross groove, a pump body, a second cross groove, a third screw hole, and a water outlet. The water outlet is embedded in the surface of the pump body, and the impeller is embedded in the interior of the pump body. The first cross groove is formed on one side surface of the impeller, and the second cross groove is formed on the other side surface of the impeller. The third screw hole is formed on one side surface of the impeller on one side of the second cross groove, and there are four sets of the third screw holes.
[0009] Preferably, the water inlet pipe is embedded in one side surface of the pump body.
[0010] Preferably, the anti-detachment structure includes a cross plate, a rotor, a fourth screw hole, and a second bolt. The cross plate is fixedly installed on one side surface of the rotor, and a fourth screw hole is opened on one side surface of the cross plate. There are four sets of the fourth screw holes.
[0011] Preferably, the pump body is fixedly installed on the upper surface of the mounting base located on one side of the drive motor, the drive motor is embedded in one side surface of the pump body, the rotor is fixedly installed on one side surface of the drive motor, the rotor is embedded in the inside of the first cross groove, the cross plate is embedded in the inside of the second cross groove, and the second bolt is embedded in the inside of the fourth screw hole and the third screw hole, and there are four sets of the second bolt.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The filter screen can filter the liquid entering the pump body, preventing impurities in the liquid from causing serious wear to the impeller;
[0014] 2: The embedded posts and first bolts allow for quick disassembly, cleaning, or replacement of the filter screen;
[0015] 3: The cross plate, first cross groove, second cross groove, and second bolt enable efficient connection between the rotor and impeller, and have the function of preventing detachment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant centrifugal pump with an anti-detachment component according to the present invention.
[0017] Figure 2 This is a cross-sectional view of the inlet pipe of a wear-resistant centrifugal pump with an anti-detachment component according to the present invention.
[0018] Figure 3 This is a cross-sectional view of the pump body of a wear-resistant centrifugal pump with an anti-detachment component according to the present invention.
[0019] Figure 4 This is a cross-sectional view of the impeller of a wear-resistant centrifugal pump with an anti-detachment component according to the present invention.
[0020] Figure 5 This utility model relates to a wear-resistant centrifugal pump with an anti-detachment component. Figure 2 A magnified view of the details at point A;
[0021] Figure 6 This utility model relates to a wear-resistant centrifugal pump with an anti-detachment component. Figure 2 A magnified view of the details at point B;
[0022] Figure 7 This utility model relates to a wear-resistant centrifugal pump with an anti-detachment component. Figure 4 A magnified view of the details at point C.
[0023] In the diagram: 1. Inlet; 101. Inlet pipe; 102. Collection box; 103. Door panel; 104. Filter screen; 105. First screw hole; 106. Embedded post; 107. Limiting ring; 108. Second screw hole; 109. First bolt; 2. Centrifugal pump body; 201. Impeller; 202. First cross groove; 203. Pump body; 204. Second cross groove; 205. Third screw hole; 206. Outlet; 3. Drive motor; 4. Mounting base; 5. Anti-detachment structure; 501. Cross plate; 502. Rotor; 503. Fourth screw hole; 504. Second bolt. Detailed Implementation
[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] like Figure 1-7 As shown, a wear-resistant centrifugal pump with an anti-detachment component includes a mounting base 4. A drive motor 3 is fixedly mounted on one side of the upper surface of the mounting base 4, and a centrifugal pump body 2 is fixedly mounted on the other side of the upper surface of the mounting base 4. An anti-detachment structure 5 is embedded inside the centrifugal pump body 2, and a water inlet 1 is embedded on one side surface of the centrifugal pump body 2.
[0026] In a preferred embodiment, the water inlet 1 includes an inlet pipe 101, a collection box 102, a door panel 103, a filter screen 104, a first screw hole 105, an embedded post 106, a limiting ring 107, a second screw hole 108, and a first bolt 109. The collection box 102 is embedded on one side of the surface of the inlet pipe 101, and the door panel 103 is embedded on one side of the collection box 102. A sealing ring is provided between the door panel 103 and the collection box 102 to prevent liquid leakage. A limiting ring 107 is embedded inside the inlet pipe 101 on one side of the collection box 102. A first screw hole 105 is formed on one side of the limiting ring 107. The first screw hole 105 has four... The filter screen 104 is embedded in the inner surface of the limiting ring 107. A set of three embedded posts 106 are fixedly installed on one side surface of the filter screen 104. A second screw hole 108 is opened on one side surface of the filter screen 104 at the bottom. A first bolt 109 is embedded in the second screw hole 108 and the first screw hole 105. The embedded post 106 is embedded in the first screw hole 105 to limit the filter screen 104. In order to ensure the stability of the filter screen 104, the first bolt 109 is fixed in the second screw hole 108 and the first screw hole 105. The first bolt 109 is located at the bottom for easy disassembly.
[0027] In a preferred embodiment, the centrifugal pump body 2 includes an impeller 201, a first cross groove 202, a pump body 203, a second cross groove 204, a third screw hole 205, and a water outlet 206. The water outlet 206 is embedded in the surface of the pump body 203, and the impeller 201 is embedded in the interior of the pump body 203. The first cross groove 202 is formed on one side surface of the impeller 201, and the second cross groove 204 is formed on the other side surface of the impeller 201. The third screw hole 205 is formed on one side surface of the impeller 201, located on one side of the second cross groove 204. There are four sets of third screw holes 205. The first cross groove 202 penetrates the impeller 201, and the second cross groove 204 is located on one side of the impeller 201.
[0028] In a preferred embodiment, the inlet pipe 101 is embedded in one side surface of the pump body 203.
[0029] The liquid is filtered by the filter screen 104. When the centrifugal pump body 2 stops running, the filtered impurities fall into the collection box 102 under its own gravity. When the filter screen 104 needs to be replaced, first open the door panel 103 to discharge the impurities inside the collection box 102, loosen the first bolt 109, and move the filter screen 104 to one side to remove the filter screen 104 for cleaning or replacement.
[0030] In a preferred embodiment, the anti-detachment structure 5 includes a cross plate 501, a rotor 502, a fourth screw hole 503, and a second bolt 504. The cross plate 501 is fixedly installed on one side surface of the rotor 502, and the fourth screw hole 503 is provided on one side surface of the cross plate 501. There are four sets of fourth screw holes 503.
[0031] In a preferred embodiment, the pump body 203 is fixedly installed on the upper surface of the mounting base 4, located on one side of the drive motor 3. The drive motor 3 is embedded in one side surface of the pump body 203. The rotor 502 is fixedly installed on one side surface of the drive motor 3. The drive motor 3 and the rotor 502 are connected by a motor shaft. The rotor 502 is embedded in the inside of the first cross groove 202. The cross plate 501 is embedded in the inside of the second cross groove 204. The second bolt 504 is embedded in the inside of the fourth screw hole 503 and the third screw hole 205. There are four sets of second bolts 504.
[0032] When installing the impeller 201, the cross plate 501 and the rotor 502 are embedded into the first cross groove 202, so that the cross plate 501 is located on one side of the impeller 201. The impeller 201 is rotated and moved to one side, so that the cross plate 501 is embedded into the second cross groove 204. The second bolt 504 is then embedded into the fourth screw hole 503 and the third screw hole 205 and tightened to fix it.
[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A wear-resistant centrifugal pump with an anti-detachment component, characterized in that: The device includes a mounting base (4), on one side of which a drive motor (3) is fixedly mounted, and on the other side of which a centrifugal pump body (2) is fixedly mounted. An anti-detachment structure (5) is embedded inside the centrifugal pump body (2), and an inlet (1) is embedded on one side of the centrifugal pump body (2).
2. A wear-resistant centrifugal pump with an anti-detachment component according to claim 1, characterized in that: The water inlet (1) includes an inlet pipe (101), a collection box (102), a door panel (103), a filter screen (104), a first screw hole (105), an embedded post (106), a limiting ring (107), a second screw hole (108), and a first bolt (109). The collection box (102) is embedded on one side of the surface of the inlet pipe (101), and the door panel (103) is embedded on one side of the surface of the collection box (102). The limiting ring (107) is embedded inside the inlet pipe (101) on one side of the collection box (102). The limiting ring (107) has a first screw hole (105) on one side surface, and there are four sets of the first screw holes (105). A filter screen (104) is embedded in the inner surface of the limiting ring (107). An embedded post (106) is fixedly installed on the upper side surface of the filter screen (104), and there are three sets of embedded posts (106). A second screw hole (108) is opened on the lower side surface of the filter screen (104). A first bolt (109) is embedded in the second screw hole (108) and the first screw hole (105).
3. A wear-resistant centrifugal pump with an anti-detachment component according to claim 2, characterized in that: The centrifugal pump body (2) includes an impeller (201), a first cross groove (202), a pump body (203), a second cross groove (204), a third screw hole (205), and a water outlet (206). The water outlet (206) is embedded in the surface of the pump body (203), and the impeller (201) is embedded in the interior of the pump body (203). The first cross groove (202) is opened on one side surface of the impeller (201), and the second cross groove (204) is opened on the other side surface of the impeller (201). The third screw hole (205) is opened on one side surface of the impeller (201) on the side of the second cross groove (204). There are four sets of the third screw holes (205).
4. A wear-resistant centrifugal pump with an anti-detachment component according to claim 3, characterized in that: The water inlet pipe (101) is embedded in one side surface of the pump body (203).
5. A wear-resistant centrifugal pump with an anti-detachment component according to claim 4, characterized in that: The anti-detachment structure (5) includes a cross plate (501), a rotor (502), a fourth screw hole (503), and a second bolt (504). The cross plate (501) is fixedly installed on one side surface of the rotor (502). The fourth screw hole (503) is opened on one side surface of the cross plate (501), and there are four sets of the fourth screw hole (503).
6. A wear-resistant centrifugal pump with an anti-detachment component according to claim 5, characterized in that: The pump body (203) is fixedly installed on the upper surface of the mounting base (4) on one side of the drive motor (3). The drive motor (3) is embedded in one side surface of the pump body (203). The rotor (502) is fixedly installed on one side surface of the drive motor (3). The rotor (502) is embedded in the inside of the first cross groove (202). The cross plate (501) is embedded in the inside of the second cross groove (204). The second bolt (504) is embedded in the inside of the fourth screw hole (503) and the third screw hole (205). There are four sets of the second bolt (504).