Centrifugal pump driven by magnetic force

By incorporating a rotation and filtration mechanism within the magnetically driven pump, combined with a cleaning mechanism, the problems of liquid debris damaging pump components and clogging are solved. This achieves effective filtration and cleaning of impurities, improving the pump's reliability and service life.

CN223511129UActive Publication Date: 2025-11-04TIANJIN NAVISTAR FLUID EQUIP CO LTD
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Patent Information

Application Number
CN202422907059.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-11-04
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

When pumping liquids, existing magnetically driven pumps are prone to damage to internal parts caused by impurities in the liquid, and prolonged use can lead to the accumulation and blockage of impurities.

Method used

The pump body is equipped with symmetrical sliding grooves and rotating mechanisms, filtering mechanisms and transmission mechanisms between the sliding grooves. The rotating mechanism is driven by a micro motor to drive the filtering mechanism to rotate in the opposite direction. Combined with the cleaning mechanism, the filter screen is cleaned to prevent the accumulation of impurities.

Benefits of technology

It effectively blocks impurities in the liquid, prevents damage to internal pump parts, and prevents blockage by impurities through a cleaning mechanism, thereby improving the pump's service life and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a centrifugal pump driven by magnetic force, which relates to the technical field of centrifugal pumps and comprises a pump body, symmetrical first sliding chutes are arranged in the pump body, symmetrical second sliding chutes are arranged on one sides of the first sliding chutes, a rotating mechanism is arranged between the first sliding chutes, and a filtering mechanism is arranged between the second sliding chutes. The rotating mechanism and the filtering mechanism are connected through a transmission mechanism, and a cleaning mechanism is arranged in the rotating mechanism. The symmetrical first sliding grooves are formed in the pump body, the symmetrical second sliding grooves are formed in one sides of the first sliding grooves, the rotating mechanism is arranged between the first sliding grooves, the filtering mechanism is arranged between the second sliding grooves, the cleaning mechanism is arranged in the rotating mechanism, and the filtering mechanism can obstruct and filter impurities doped in liquid; the rotating mechanism can rotate, and the transmission mechanism can drive the filtering mechanism to rotate reversely, so that the cleaning mechanism cleans the filtering mechanism, and impurity accumulation and blockage are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, specifically a magnetically driven centrifugal pump. Background Technology

[0002] Magnetic drive pumps are a new type of sealless pump that uses the principle of permanent magnet transmission technology to achieve contactless torque transmission. There is no mechanical connection between the drive shaft and the driven shaft, and no dynamic seal is required in the structure. Therefore, this type of pump is sealless and can achieve zero leakage. In the existing technology, when magnetic drive pumps pump liquids, impurities mixed in the liquid can easily damage the parts inside the pump.

[0003] Patent document CN218817255U describes an easy-to-install magnetically driven centrifugal pump, including a base, a magnetically driven centrifugal pump body on the top of the base, a flange connection plate on the top of the magnetically driven centrifugal pump body, and a base plate at the bottom of the base. This solves the problem that most existing methods for installing magnetically driven centrifugal pumps involve using multiple screws to install them on concrete platforms or the ground. After prolonged use, maintenance requires unscrewing multiple screws to disassemble and reassemble the pump, making disassembly and reassembly inconvenient. Furthermore, existing magnetically driven pumps are prone to damage to internal parts from impurities in the liquid during pumping, necessitating filtration of these impurities, and prolonged use can lead to impurity buildup and blockage.

[0004] Based on this, a magnetically driven centrifugal pump is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a magnetically driven centrifugal pump to solve the problems of existing magnetically driven pumps, where impurities in the liquid can easily damage the pump's internal parts, requiring filtration of impurities in the liquid, and causing impurities to accumulate and clog the pump over a long period of time.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A magnetically driven centrifugal pump includes a pump body, wherein the pump body is provided with symmetrical first slide grooves, and symmetrical second slide grooves are provided on one side of the first slide grooves. A rotating mechanism is provided between the first slide grooves, and a filtering mechanism is provided between the second slide grooves. The rotating mechanism and the filtering mechanism are connected by a transmission mechanism, and a cleaning mechanism is provided inside the rotating mechanism.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the rotating mechanism includes a first rotating disk located between first sliding grooves, symmetrical first connecting rings are provided on both sides of the first rotating disk, and the first connecting rings are slidably connected to the first sliding grooves, and a first annular toothed rack is provided on the outer surface of the first connecting rings.

[0010] In one alternative embodiment: the filtering mechanism includes a second rotating disk located between second sliding grooves, with symmetrical second connecting rings on both sides of the second rotating disk, and the second connecting rings being slidably connected to the second sliding grooves, and a filter screen being disposed inside the second rotating disk.

[0011] In one alternative embodiment: the transmission mechanism includes a fixed block located at the bottom of the pump body, a connecting block on one side of the fixed block, a connecting shaft rotatably connected to the connecting block, a first gear through the connecting shaft, a second annular rack on one side of the first rotating disk, and a third annular rack on one side of the second rotating disk, both the second and third annular racks meshing with the first gear.

[0012] In one alternative: a micro motor is provided on one side of the pump body surface, a rotating shaft is provided at the output end of the micro motor, a second gear is provided at the outer end of the rotating shaft, and the second gear meshes with the first annular rack.

[0013] In one alternative: the cleaning mechanism includes a fixed plate located inside the first rotating disk, with both ends of the fixed plate fixedly connected to the inner wall of the first rotating disk, and a brush plate provided on one side of the fixed plate, the brush plate being in contact with the surface of the filter screen.

[0014] In one alternative: a water-drawing end is provided at the outer end of the pump body, and a first flange is provided at the outer end of the water-drawing end.

[0015] In one alternative: the pump body is provided with a water outlet, and a second flange is provided at the outer end of the water outlet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a pump body with symmetrical first grooves and symmetrical second grooves on one side. A rotating mechanism is located between the first grooves, and a filtering mechanism is located between the second grooves. The rotating mechanism and the filtering mechanism are connected by a transmission mechanism. A cleaning mechanism is installed within the rotating mechanism. The filtering mechanism can filter out impurities in the liquid. The rotating mechanism can rotate, and the transmission mechanism can drive the filtering mechanism to rotate in the opposite direction, allowing the cleaning mechanism within the rotating mechanism to clean the filtering mechanism and prevent impurities from accumulating and clogging it. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the skateboard structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the transmission mechanism structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the filter structure of this utility model.

[0022] Figure reference numerals: 1. Pump body; 2. Pumping end; 3. First flange; 4. Outlet end; 5. Second flange; 6. First chute; 7. Second chute; 8. First rotating disc; 9. First connecting ring; 10. Second rotating disc; 11. Second connecting ring; 12. First annular rack; 13. Second annular rack; 14. Third annular rack; 15. Fixing block; 16. Connecting block; 17. Connecting shaft; 18. First gear; 19. Micro motor; 20. Rotating shaft; 21. Second gear; 22. Filter screen; 23. Fixing plate; 24. Brush plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0025] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0026] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0027] In one embodiment, such as Figures 1-4 As shown, a magnetically driven centrifugal pump includes a pump body 1. The pump body 1 has symmetrical first slide grooves 6 inside, and symmetrical second slide grooves 7 are provided on one side of the first slide grooves 6. A rotating mechanism is provided between the first slide grooves 6, and a filtering mechanism is provided between the second slide grooves 7. The rotating mechanism and the filtering mechanism are connected by a transmission mechanism. A cleaning mechanism is provided inside the rotating mechanism. The filtering mechanism can filter out impurities mixed in the liquid. The rotating mechanism can rotate, and the transmission mechanism can drive the filtering mechanism to rotate in the opposite direction, so that the cleaning mechanism inside the rotating mechanism can clean the filtering mechanism and prevent impurities from accumulating and clogging it.

[0028] In one embodiment, such as Figure 2 and Figure 3 As shown, the rotating mechanism includes a first rotating disk 8, which is located between the first sliding grooves 6. Symmetrical first connecting rings 9 are provided on both sides of the first rotating disk 8, and the first connecting rings 9 are slidably connected to the first sliding grooves 6. A first annular rack 12 is provided on the outer surface of the first connecting ring 9. The first rotating disk 8 can rotate freely on the pump body 1.

[0029] In one embodiment, such as Figure 2 and Figure 4 As shown, the filtration mechanism includes a second rotating disk 10, which is located between the second sliding grooves 7. Symmetrical second connecting rings 11 are provided on both sides of the second rotating disk 10, and the second connecting rings 11 are slidably connected to the second sliding grooves 7. A filter screen 22 is provided inside the second rotating disk 10. The second rotating disk 10 can rotate freely on the pump body 1, and the filter screen 22 can block and filter impurities mixed in the liquid.

[0030] In one embodiment, such as Figure 3As shown, the transmission mechanism includes a fixed block 15, which is located at the bottom of the pump body 1. A connecting block 16 is provided on one side of the fixed block 15. A connecting shaft 17 is rotatably connected to the connecting block 16. A first gear 18 is provided through the connecting shaft 17 and passes through the pump body 1. A second annular rack 13 is provided on one side of the first rotating disk 8, and a third annular rack 14 is provided on one side of the second rotating disk 10. Both the second annular rack 13 and the third annular rack 14 mesh with the first gear 18. During the rotation of the first rotating disk 8, the first gear 18 is driven to rotate synchronously, thereby driving the second rotating disk 10 to rotate in the opposite direction.

[0031] In one embodiment, such as Figure 2 As shown, a micro motor 19 is provided on one side of the surface of the pump body 1. A rotating shaft 20 is provided at the output end of the micro motor 19. A second gear 21 is provided at the outer end of the rotating shaft 20. The second gear 21 meshes with the first annular rack 12. Starting the micro motor 19 can drive the second gear 21 to rotate, thereby driving the second rotating disk 10 to rotate.

[0032] In one embodiment, such as Figure 2 As shown, the cleaning mechanism includes a fixed plate 23, which is located inside the first rotating disk 8. Both ends of the fixed plate 23 are fixedly connected to the inner wall of the first rotating disk 8. A brush plate 24 is provided on one side of the fixed plate 23, and the brush plate 24 is in contact with the surface of the filter screen 22. During the rotation of the first rotating disk 8, the brush plate 24 is driven to rotate synchronously, and the second rotating disk 10 rotates in the opposite direction, thereby accelerating the cleaning effect of the brush plate 24 on the filter screen 22 and improving the cleaning effect.

[0033] In one embodiment, such as Figure 1 As shown, a pump body 1 has a pumping end 2 at its outer end, and a first flange 3 is provided at the outer end of the pumping end 2. The first flange 3 facilitates the installation and fixing of the pumping end 2.

[0034] In one embodiment, such as Figure 1 As shown, the pump body 1 is provided with a water outlet 4, and a second flange 5 is provided at the outer end of the water outlet 4. The second flange 5 facilitates the installation and fixing of the water outlet 4.

[0035] The above embodiment discloses a magnetically driven centrifugal pump. In use, the micro motor 19 is started to drive the second gear 21 to rotate, thereby driving the second rotating disk 10 to rotate. The filter screen 22 can block and filter impurities mixed in the liquid. The brush plate 24 rotates synchronously with the first rotating disk 8. During the rotation of the first rotating disk 8, the first gear 18 is driven to rotate synchronously, thereby driving the second rotating disk 10 to rotate in the opposite direction, thereby accelerating the cleaning effect of the brush plate 24 on the filter screen 22 and improving the cleaning effect.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A magnetically driven centrifugal pump, comprising a pump body (1), characterized in that, The pump body (1) is provided with symmetrical first sliding grooves (6), and symmetrical second sliding grooves (7) are provided on one side of the first sliding grooves (6). A rotating mechanism is provided between the first sliding grooves (6), and a filtering mechanism is provided between the second sliding grooves (7). The rotating mechanism and the filtering mechanism are connected by a transmission mechanism. A cleaning mechanism is provided in the rotating mechanism. The rotating mechanism includes a first rotating disk (8), which is located between the first sliding grooves (6). Symmetrical first connecting rings (9) are provided on both sides of the first rotating disk (8), and the first connecting rings (9) are slidably connected to the first sliding grooves (6). A first annular rack (12) is provided on the outer surface of the first connecting rings (9). The filtering mechanism includes a second rotating disk (10), which is located between the second sliding grooves (7). Symmetrical second connecting rings (11) are provided on both sides of the second rotating disk (10), and the second connecting rings (11) are slidably connected to the second sliding grooves (7). A filter screen (22) is provided in the second rotating disk (10).

2. The magnetically driven centrifugal pump according to claim 1, characterized in that, The transmission mechanism includes a fixed block (15) located at the bottom of the pump body (1). A connecting block (16) is provided on one side of the fixed block (15). A connecting shaft (17) is rotatably connected to the connecting block (16). A first gear (18) is provided through the pump body (1). A second annular rack (13) is provided on one side of the first rotating disk (8). A third annular rack (14) is provided on one side of the second rotating disk (10). Both the second annular rack (13) and the third annular rack (14) mesh with the first gear (18).

3. The magnetically driven centrifugal pump according to claim 1, characterized in that, A micro motor (19) is provided on one side of the surface of the pump body (1). A rotating shaft (20) is provided at the output end of the micro motor (19). A second gear (21) is provided at the outer end of the rotating shaft (20), and the second gear (21) meshes with the first annular rack (12).

4. The magnetically driven centrifugal pump according to claim 1, characterized in that, The cleaning mechanism includes a fixed plate (23), which is located inside the first rotating disk (8), and both ends of the fixed plate (23) are fixedly connected to the inner wall of the first rotating disk (8). A brush plate (24) is provided on one side of the fixed plate (23), and the brush plate (24) is in contact with the surface of the filter screen (22).

5. The magnetically driven centrifugal pump according to claim 1, characterized in that, The pump body (1) is provided with a water pumping end (2) at its outer end, and a first flange (3) is provided at the outer end of the water pumping end (2).

6. The magnetically driven centrifugal pump according to claim 1, characterized in that, The pump body (1) is provided with a water outlet (4), and a second flange (5) is provided at the outer end of the water outlet (4).

Citation Information

Patent Citations

  • An easy-to-install magnetically driven centrifugal pump

    CN218817255U