Submerged magnetic drive pump structure

Abstract

The utility model discloses a submerged magnetic pump structure which comprises a base, a second liquid outlet pipe is arranged on one side of the base, the lower end of the second liquid outlet pipe extends to the position below the base, a first liquid outlet pipe is arranged below the second liquid outlet pipe, and flange plates are fixedly arranged at the upper end and the lower end of the first liquid outlet pipe and the upper end and the lower end of the second liquid outlet pipe respectively. Four through holes are formed in the flange plate, the through holes are of a penetrating structure and are annularly distributed at equal intervals, a bolt is arranged at the position, at the lower end of the second liquid outlet pipe, in the flange plate, the lower end of the bolt extends to the position, below the flange plate, at the upper end of the first liquid outlet pipe through the through holes, and the lower end of the bolt is sleeved with a nut; by means of the structure, the problems that the water outlet pipe is not convenient and fast to maintain, and impurities in water easily enter the pump body are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic pumps, in particular to a submerged magnetic pump structure. Background Art

[0002] A submersible magnetic pump is a special type of magnetic pump. It's a liquid conveying device that works on the principle of magnetism. Its magnetic drive unit is placed in the submersible portion of the pump and connected to the pump's rotor. The submersible magnetic pump includes components such as a motor, coupling, frame, baseplate, main pipe, and outlet pipe. When in use, the power transmitted by the motor is converted into pump power through magnetic coupling, thereby achieving liquid delivery. There is no physical contact between the pump's rotor and the magnetic drive unit, so leakage problems can be completely avoided. Submersible magnetic pumps are widely used in the industrial and chemical industries to transport various corrosive liquids, organic matter, and solvents.

[0003] For example, the Chinese patent "A Submersible Magnetic Pump" with announcement number CN204082573U includes a motor, a coupling, a frame, a base plate, a main pipe and a liquid outlet pipe. The motor, coupling and frame are located above the base plate, the main pipe is located below the base plate, and the liquid outlet pipe is located next to the main pipe. A magnetic pump body is provided below the main pipe. The magnetic pump body includes an outer magnetic rotor, an inner magnetic rotor, a pump shaft, an inner isolation sleeve and an outer isolation sleeve. The inner magnetic rotor is fixed above the pump shaft. An inner isolation sleeve and an outer isolation sleeve are provided between the outer magnetic rotor and the inner magnetic rotor. A closed space is formed between the inner isolation sleeve and the outer isolation sleeve. An isolation cover is provided outside the magnetic pump body. An alarm is provided on the frame. The alarm is connected to the closed space formed between the inner isolation sleeve and the outer isolation sleeve.

[0004] Although the above-mentioned existing technology can realize the use of magnetic pumps, in actual use, on the one hand, the water outlet pipe is not convenient to repair. Usually, the water outlet pipe adopts an integrated structure and is welded and fixed on the pump body, resulting in the need to cut off the entire water outlet pipe from the pump body when replacing a leaking water outlet pipe, thereby increasing the maintenance cost of the pump body. On the other hand, impurities in the water can easily enter the interior of the pump body. Usually, the lower end of the pump body is directly placed in water for use, resulting in impurities in the water entering the pump body and damaging the pump body components, thereby shortening the service life of the pump body. Therefore, it does not meet existing needs. In this regard, we propose a submersible magnetic pump structure. Summary of the Invention

[0005] The purpose of the utility model is to provide a submersible magnetic pump structure to solve the problems in the above background technology that the water outlet pipe is not easy to repair and impurities in the water can easily enter the interior of the pump body.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a submersible magnetic pump structure, comprising a base, a second liquid outlet pipe is provided on one side of the base, the lower end of the second liquid outlet pipe extends to the bottom of the base, a first liquid outlet pipe is provided below the second liquid outlet pipe, the upper and lower ends of the first liquid outlet pipe and the second liquid outlet pipe are fixedly provided with flanges, four through holes are provided inside the flange, the through holes are a through structure, and the through holes are equidistantly distributed in a ring shape, a bolt is provided inside the flange at the lower end of the second liquid outlet pipe, the lower end of the bolt extends through the through hole to the bottom of the flange at the upper end of the first liquid outlet pipe, a nut is provided on the outer sleeve of the lower end of the bolt, and the nut is in contact with the flange on the first liquid outlet pipe.

[0007] Preferably, a sealing ring is fixedly provided on the outside of the flange, the sealing ring and the flange are fixed by a polymer adhesive, and the sealing rings between the two flanges are in contact with and squeezed with each other.

[0008] Preferably, a motor assembly is provided at the middle position of the upper end of the base, an upper branch pipe is provided at the middle position of the lower end of the base, a lower branch pipe is provided at the lower end of the upper branch pipe, a pump body is provided at the lower end of the lower branch pipe, the lower end of the first liquid outlet pipe is connected to the pump body, and the connections between the base and the motor assembly, the base and the upper branch pipe, the base and the second liquid outlet pipe, and the lower branch pipe and the pump body are all fixedly connected by welding points.

[0009] Preferably, a threaded hole is provided inside the lower end of the pump body, the threaded hole is connected to the pump body, a mounting plate is provided inside the threaded hole, the outside of the mounting plate is a threaded structure, a filter cartridge is fixedly provided at the lower end of the mounting plate, and the lower end of the filter cartridge extends to the bottom of the pump body.

[0010] Preferably, a rubber pad is provided on the upper end of the mounting plate, the rubber pad and the mounting plate are fixed by a polymer adhesive, and the upper end of the rubber pad contacts the inner wall of the threaded hole and causes extrusion.

[0011] Preferably, bearings are provided inside the connection between the upper branch pipe and the base, and between the upper branch pipe and the lower branch pipe.

[0012] Preferably, a connecting shaft is fixedly provided at the lower end of the motor assembly, and the lower end of the connecting shaft passes through the bearing and is fixedly connected to the pump body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model can improve the convenience of maintenance through the first liquid outlet pipe and the second liquid outlet pipe. When the first liquid outlet pipe or the second liquid outlet pipe is damaged, the operator rotates the nut so that the nut moves downward outside the bolt through the thread until the nut is separated from the bolt, and then the bolt is pulled out of the through hole. At this time, the operator removes the damaged first liquid outlet pipe or the second liquid outlet pipe, and then aligns the flange on the new first liquid outlet pipe or the second liquid outlet pipe with the flange on the old pipe. At this time, the bolt is reinserted into the through hole, and then the nut is aligned with the lower end of the bolt and rotated so that the nut moves upward outside the bolt until the nut contacts the flange, thereby improving the convenience of maintenance of the first liquid outlet pipe or the second liquid outlet pipe.

[0015] (2) The utility model can filter the liquid entering the pump body through the filter cartridge and the rubber pad. When the pump body is working, the liquid passes through the filter cartridge before the pump body absorbs the liquid. At this time, the impurities in the liquid are intercepted and filtered by the filter cartridge, so that the clean liquid enters the pump body. After using it for a period of time, the motor assembly is turned off and the operator cleans the filter cartridge. At this time, the operator holds the outside of the filter cartridge and rotates it, and drives the mounting disc to rotate in the threaded hole through the filter cartridge. The thread on the outside of the mounting disc makes it move outward in the threaded hole until the mounting disc is detached from the threaded hole. At this time, the operator processes the impurities attached to the filter cartridge. After the filter cartridge is cleaned, the mounting disc is aligned with the opening of the threaded hole and pushed into the threaded hole. At this time, the filter cartridge is rotated and the mounting disc is driven to rotate in the threaded hole, so that the mounting disc moves toward the inside of the threaded hole until the rubber pad on the mounting disc contacts the inner wall of the threaded hole and causes extrusion, thereby improving the cleanliness of the liquid entering the pump body.

[0016] (3) The utility model can improve the sealing performance of the upper branch pipe and the lower branch pipe through the welding point and the base. When the pump body is assembled, the upper branch pipe and the base, the lower branch pipe and the pump body, and the base and the second liquid outlet pipe are fixedly connected by welding. The welding firmly connects the various components of the pump body to form a seamless overall structure, avoiding the gaps and leakage points that may appear in the traditional connection method. At the same time, the pump body can maintain good sealing performance under high pressure or corrosive media. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the internal structure of the utility model;

[0018] Figure 2 This is a side view of the internal structure of the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the water outlet pipe structure of the present utility model;

[0020] Figure 4 For the utility model Figure 2A partial enlarged view of area A in the middle.

[0021] In the figure: 1. Base; 2. First liquid outlet pipe; 3. Welding point; 4. Bearing; 5. Pump body; 6. Second liquid outlet pipe; 7. Flange; 8. Bolt; 9. Nut; 10. Sealing ring; 11. Through hole; 12. Threaded hole; 13. Filter cartridge; 14. Mounting plate; 15. Motor assembly; 16. Connecting shaft; 17. Rubber pad; 18. Upper branch pipe; 19. Lower branch pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a submersible magnetic pump structure, including a base 1, a second liquid outlet pipe 6 is provided on one side of the base 1, the lower end of the second liquid outlet pipe 6 extends to the bottom of the base 1, and a first liquid outlet pipe 2 is provided below the second liquid outlet pipe 6. Bearings 4 are provided inside the connection between the upper branch pipe 18 and the base 1, and the upper branch pipe 18 and the lower branch pipe 19. A connecting shaft 16 is fixedly provided at the lower end of the motor assembly 15, and the lower end of the connecting shaft 16 passes through the bearing 4 and is fixedly connected to the pump body 5.

[0024] See also Figure 1 and Figure 3 The upper and lower ends of the first liquid outlet pipe 2 and the second liquid outlet pipe 6 are fixedly provided with flanges 7. Four through holes 11 are provided inside the flange 7. The through holes 11 are a through structure and are equidistantly distributed in a ring. A bolt 8 is provided inside the flange 7 at the lower end of the second liquid outlet pipe 6. The lower end of the bolt 8 extends through the through hole 11 to the bottom of the flange 7 at the upper end of the first liquid outlet pipe 2. A nut 9 is provided on the external sleeve of the lower end of the bolt 8. The nut 9 contacts the flange 7 on the first liquid outlet pipe 2. A sealing ring 10 is fixed to the outside of the flange 7. The sealing ring 10 is fixed to the flange 7 by a polymer adhesive, and the sealing rings 10 between the two flanges 7 contact and squeeze each other, which facilitates the maintenance of the first liquid outlet pipe 2 and the second liquid outlet pipe 6 through the flange 7.

[0025] See also Figure 1A motor assembly 15 is provided at the middle position of the upper end of the base 1, an upper branch pipe 18 is provided at the middle position of the lower end of the base 1, a lower branch pipe 19 is provided at the lower end of the upper branch pipe 18, and a pump body 5 is provided at the lower end of the lower branch pipe 19. The lower end of the first liquid outlet pipe 2 is connected to the pump body 5, and the connections between the base 1 and the motor assembly 15, the base 1 and the upper branch pipe 18, the base 1 and the second liquid outlet pipe 6, and the lower branch pipe 19 and the pump body 5 are all fixedly connected by welding points 3, so as to improve the sealing of the magnetic pump through welding points 3.

[0026] See also Figure 1 and Figure 4 A threaded hole 12 is provided inside the lower end of the pump body 5, and the threaded hole 12 is communicated with the pump body 5. A mounting plate 14 is provided inside the threaded hole 12, and the outside of the mounting plate 14 is a threaded structure. A filter cartridge 13 is fixedly provided at the lower end of the mounting plate 14, and the lower end of the filter cartridge 13 extends to the bottom of the pump body 5. A rubber pad 17 is provided at the upper end of the mounting plate 14, and the rubber pad 17 is fixed to the mounting plate 14 by a polymer adhesive, and the upper end of the rubber pad 17 contacts the inner wall of the threaded hole 12 and causes extrusion, so that impurities in the liquid can be filtered and intercepted by the filter cartridge 13.

[0027] Working principle: During use, when the first liquid outlet pipe 2 or the second liquid outlet pipe 6 is damaged, the operator rotates the nut 9 so that the nut 9 moves downward on the outside of the bolt 8 through the thread until the nut 9 is disengaged from the bolt 8, and then the bolt 8 is pulled out from the through hole 11. At this time, the operator removes the damaged first liquid outlet pipe 2 or the second liquid outlet pipe 6, and then aligns the flange 7 on the new first liquid outlet pipe 2 or the second liquid outlet pipe 6 with the flange 7 on the old pipe. At this time, the bolt 8 is reinserted into the through hole 11, and then the nut 9 is aligned with the lower end of the bolt 8 and rotated. The nut 9 moves upward on the outside of the bolt 8 until the nut 9 contacts the flange 7. Before the pump body 5 absorbs the liquid, the liquid first passes through the filter cartridge 13. At this time, the impurities in the liquid are intercepted and filtered by the filter cartridge 13, allowing clean liquid to enter the inside of the pump body 5. After using it for a period of time, the motor assembly 15 is turned off and the operator cleans the filter cartridge 13. At this time, the operator The operator holds the outside of the filter cartridge 13 and rotates it, driving the mounting disc 14 to rotate in the threaded hole 12 through the filter cartridge 13, and moves it outward in the threaded hole 12 through the threads on the outside of the mounting disc 14 until the mounting disc 14 is detached from the threaded hole 12. At this time, the operator handles the impurities attached to the filter cartridge 13. When the filter cartridge 13 is cleaned, the mounting disc 14 is aligned with the opening of the threaded hole 12 and pushed into the threaded hole 12. At this time, the filter cartridge 13 is rotated and the mounting disc 14 is driven to rotate in the threaded hole 12, so that the mounting disc 14 moves toward the inside of the threaded hole 12 until the rubber pad 17 on the mounting disc 14 contacts the inner wall of the threaded hole 12 and causes extrusion. The upper branch pipe 18 and the base 1, the lower branch pipe 19 and the pump body 5, and the base 1 and the second liquid outlet pipe 6 are fixedly connected by welding. The various components of the pump body 5 are firmly connected together by welding to form a seamless overall structure.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A submersible magnetic pump structure, comprising a base (1), characterized in that: A second liquid outlet pipe (6) is provided on one side of the base (1), and the lower end of the second liquid outlet pipe (6) extends to the bottom of the base (1). A first liquid outlet pipe (2) is provided below the second liquid outlet pipe (6). The upper and lower ends of the first liquid outlet pipe (2) and the second liquid outlet pipe (6) are fixedly provided with flanges (7). Four through holes (11) are provided inside the flange (7). The through holes (11) are of a through-type structure and are distributed in an annular manner with equal spacing. A bolt (8) is provided inside the flange (7) at the lower end of the second liquid outlet pipe (6). The lower end of the bolt (8) extends through the through hole (11) to the bottom of the flange (7) at the upper end of the first liquid outlet pipe (2). A nut (9) is provided on the outer sleeve of the lower end of the bolt (8), and the nut (9) contacts the flange (7) on the first liquid outlet pipe (2).

2. A submersible magnetic pump structure according to claim 1, characterized in that: A sealing ring (10) is fixedly provided on the outside of the flange (7), and the sealing ring (10) and the flange (7) are fixed by bonding with a polymer adhesive, and the sealing rings (10) between the two flanges (7) are in contact with and squeezed with each other.

3. A submersible magnetic pump structure according to claim 2, characterized in that: A motor assembly (15) is provided at the middle position of the upper end of the base (1), an upper branch pipe (18) is provided at the middle position of the lower end of the base (1), a lower branch pipe (19) is provided at the lower end of the upper branch pipe (18), a pump body (5) is provided at the lower end of the lower branch pipe (19), the lower end of the first liquid outlet pipe (2) is communicated with the pump body (5), and the connection points between the base (1) and the motor assembly (15), the base (1) and the upper branch pipe (18), the base (1) and the second liquid outlet pipe (6), and the lower branch pipe (19) and the pump body (5) are all fixedly connected by welding points (3).

4. A submersible magnetic pump structure according to claim 3, characterized in that: A threaded hole (12) is provided inside the lower end of the pump body (5), the threaded hole (12) is communicated with the pump body (5), a mounting plate (14) is provided inside the threaded hole (12), the outer portion of the mounting plate (14) is a threaded structure, a filter cartridge (13) is fixedly provided at the lower end of the mounting plate (14), and the lower end of the filter cartridge (13) extends to the bottom of the pump body (5).

5. A submersible magnetic pump structure according to claim 4, characterized in that: A rubber pad (17) is provided at the upper end of the mounting plate (14), and the rubber pad (17) and the mounting plate (14) are fixed by a polymer adhesive, and the upper end of the rubber pad (17) contacts the inner wall of the threaded hole (12) and causes extrusion.

6. A submersible magnetic pump structure according to claim 5, characterized in that: Bearings (4) are provided inside the connection points between the upper branch pipe (18) and the base (1), and between the upper branch pipe (18) and the lower branch pipe (19).

7. A submersible magnetic pump structure according to claim 6, characterized in that: A connecting shaft (16) is fixedly provided at the lower end of the motor assembly (15), and the lower end of the connecting shaft (16) passes through the bearing (4) and is fixedly connected to the pump body (5).

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