Submersible pump base with low suction function and submersible pump

Abstract

The utility model belongs to the field of water pumps, particularly relates to a submersible pump base with a low suction function and a submersible pump, and aims to solve the problems of insufficient suction height, easiness in blockage, incapability of completely pumping a large amount of residual water after water pumping and low efficiency caused by the fact that the design of a water inlet of the conventional submersible pump is not optimized enough and the internal structure of a pump body is limited. According to the technical scheme, the device comprises a base, at least one pressure increasing area is arranged in the base, a penetrating first water inlet area is arranged at the bottom of the base, the first water inlet area is located in the center of the base and arranged in a net shape, and a plurality of second water inlet areas are arranged on the circumference of the base. According to the submersible pump, through the design of the first water inlet area and the internal pressure lifting area, the suction lift and the self-suction capacity of the submersible pump are effectively improved, the pump can rapidly form stable suction force at a low water level through the design, and therefore the working efficiency of the pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a submersible pump base and a submersible pump with a low-suction function. Background Art

[0002] Traditional submersible pumps are used in low water levels or poor water quality environments. Due to the suboptimal design of the water inlet and the limitations of the internal structure of the pump body, the suction range is insufficient and it is easy to get clogged. After the pumping is completed, a large amount of water will remain and cannot be pumped out, resulting in low efficiency.

[0003] In response to the above problems, this utility model document proposes a submersible pump base and a submersible pump with low-suction function. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as the inadequate optimization of the design of the water inlet and the limitations of the internal structure of the pump body, which lead to insufficient suction range, easy clogging, a large amount of water remaining after the pumping is completed and unable to be pumped out, and low efficiency. A submersible pump base and a submersible pump with low suction function are proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A submersible pump base with a low-suction function includes a base, wherein at least one pressure-raising area is provided inside the base, and the number of pressure-raising areas is at least one. A first water inlet area is provided through the bottom of the base, and the first water inlet area is located at the center of the base and is arranged in a mesh shape. A plurality of second water inlet areas are provided around the circumference of the base, and a filter is provided at the bottom of the first water inlet area.

[0007] The bottom of the base is fixedly connected with multiple base fulcrums, the height of the base fulcrum is mm, a water tank is provided on the circumference of the base, a water outlet is provided on the circumference of the base, and one end of the water outlet is threadedly connected with a connecting pipe.

[0008] In one possible design, a shell is mounted on the upper surface of the base by a plurality of screws, a motor is fixedly connected to the interior of the shell, one end of the motor output shaft is fixedly connected to a rotating shaft, an impeller is fixedly connected to the circumference of the rotating shaft, the impeller is located inside the base, a nut is threadedly connected to the bottom of the rotating shaft, the nut is located below the impeller, and a water wave switch is mounted above the shell through a wire.

[0009] In a possible design, a handle is installed on the upper surface of the housing.

[0010] In a possible design, a sealing ring is provided between the base and the housing.

[0011] In a possible design, a plurality of reinforcement plates are provided inside the base.

[0012] In one possible design, the circumference of the base is fixedly connected to an extension rod, the upper surface of the extension rod is slidably connected to a penetrating limit screw, the bottom of the limit screw passes through the extension rod and is fixedly connected to a fixed frame, the circumference of the limit screw is threadedly connected to a nut, the nut is located at the bottom of the extension rod, and the fixed frame cover is arranged on the surface of the water wave switch.

[0013] In a possible design, the fixing frame is arranged in a four-claw shape.

[0014] A submersible pump comprises any one of the above-mentioned submersible pump bases with low-suction function.

[0015] In this application, during use, when the motor is started, it drives the rotating shaft and impeller to rotate. The rotation of the impeller generates centrifugal force, forming a negative pressure area, so that water is sucked into the base from the first water inlet area and the second water inlet area. The water filtered by the filter enters the pressure increase area and is discharged through the water outlet and connecting pipe after pressurization. At the same time, the water wave switch monitors the water level changes and automatically shuts down the motor when the water level drops to a certain level to prevent idling damage. During the whole process, the sealing ring and reinforcement plate ensure the sealing and stability of the pump body.

[0016] Beneficial effects:

[0017] In the present invention, the submersible pump base and submersible pump with low suction function effectively improve the suction range and self-priming ability of the submersible pump through the design of the first water inlet area and the internal pressure boosting area. This design enables the pump to quickly form a stable suction force even at a lower water level, thereby improving the working efficiency of the pump.

[0018] In the utility model, the submersible pump base and submersible pump with low-suction function adopt a mesh design in the first water inlet area and are equipped with a filter, which can effectively intercept large particles of impurities and prevent them from entering the pump body and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a submersible pump base and a submersible pump with low suction function proposed by the utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of a submersible pump base and a submersible pump with a low-suction function proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a submersible pump base with a low-suction function and a submersible pump base structure proposed by the utility model;

[0022] Figure 4This is a schematic diagram of a submersible pump base with a low-suction function and the internal structure of the submersible pump base proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of a submersible pump base with a low-suction function and the bottom structure of the submersible pump base proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of a submersible pump base with a low-suction function and a cross-sectional structure of the submersible pump base proposed by the utility model;

[0025] Figure 7 This is a schematic structural diagram of a submersible pump base with a low-suction function and an extension rod of the submersible pump proposed by the utility model.

[0026] In the figure: 1. Outer casing; 2. Base; 3. Water wave switch; 4. Water outlet; 5. Connecting pipe; 6. Handle; 7. Rotating shaft; 8. Impeller; 9. Motor; 10. Water tank; 11. First water inlet area; 12. Second water inlet area; 13. Pressure boosting area; 14. Sealing ring; 15. Filter screen; 16. Reinforcement plate; 17. Nut; 18. Base fulcrum; 19. Extension rod; 20. Limit screw; 21. Nut; 22. Fixing frame. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1-Figure 7 A submersible pump base with a low-suction function includes: a base 2 made of a high-strength, corrosion-resistant metal material (such as stainless steel), with at least one pressure-raising area 13 designed inside the base 2. These areas, through a specially designed flow channel structure, can effectively increase the pressure when water flows through, thereby enhancing the self-priming ability;

[0030] The main function of the pressure boosting area 13 is that when the surrounding water is sucked into the first mesh water inlet area 11 in the center of the base 2 through the 2mm gap, the impeller 8 is driven by the rotation of the motor 9. Under the action of centrifugal force, the water follows the specially designed curve shape on the inner side of the base 2 into the pressure boosting area 13, and is then quickly output to the outside of the pump body. This can change the potential energy of the water and complete a work process.

[0031] Due to the special structure of the base 2, the lowest surface is only 2 mm away from the ground of the water tank 10. In this way, when the gap between the impeller 8 and the base 2 is 2 mm (the impeller 8 is about 4 mm away from the ground), the water level in the container can be drained to below 1 mm.

[0032] The special structure of the base 2, the reasonable cooperation of the impeller 8 and the motor 9 can effectively transfer almost all the water in the container or space to other places, so that the contact between the container and the bottom surface of the base 2 is minimized, achieving the best requirement of customers - zero residual water level;

[0033] A first water inlet area 11 with a mesh structure is provided at the center of the bottom of the base 2. This area is used to absorb water and is equipped with a filter 15 to prevent large particles of impurities from entering the pump body. At the same time, multiple second water inlet areas 12 are evenly distributed around the circumference of the base 2 as auxiliary water inlets to improve water absorption efficiency.

[0034] The bottom of the base 2 is fixed with multiple base supports 18 with a height of 2mm to ensure that the base 2 is placed stably and is convenient for drainage. The circumference of the base 2 is also provided with a water tank 10 for temporarily storing the absorbed water to ensure a stable water supply;

[0035] A water outlet 4 is provided on the circumference of the base 2, one end of which is tightly connected to a connecting pipe 5 by a threaded connection, so as to facilitate delivery of the pumped water to a desired location;

[0036] The upper surface of the base 2 is fixed with the outer shell 1 by multiple screws. The outer shell 1 is also made of stainless steel to protect the internal motor 9 and other components. The motor 9 is fixedly installed inside the outer shell 1. The output shaft of the motor 9 is connected to the rotating shaft 7. The impeller 8 is fixedly connected to the circumference of the rotating shaft 7. The impeller 8 is located inside the base 2. When the motor 9 is started, the impeller 8 rotates to generate suction, sucking water from the first water inlet area 11 and pressurizing it before discharging it through the water outlet 4.

[0037] Example 2

[0038] refer to Figure 1-Figure 7 , improved on the basis of Example 1:

[0039] The bottom of the rotating shaft 7 is connected to the nut 17 through a thread. The nut 17 is located below the impeller 8 and is used to fix the impeller 8 and prevent it from loosening during high-speed rotation. A water wave switch 3 is installed on the upper surface of the housing 1 to monitor water level changes and automatically control the start and stop of the motor 9. At the same time, a handle 6 is also provided for easy transportation and installation.

[0040] A sealing ring 14 is provided between the base 2 and the housing 1 to ensure that the interior of the pump body is sealed to prevent water leakage. A plurality of reinforcing plates 16 are also provided inside the base 2 to enhance the stability of the overall structure.

[0041] An extension rod 19 is fixed on the circumference of the base 2, and a limiting screw 20 is slid on the upper surface of the extension rod 19. A fixing frame 22 is fixed to the bottom of the limiting screw 20. The fixing frame 22 is covered on the surface of the water wave switch 3 to facilitate limiting the position of the water wave switch 3 in the water and avoid shaking in the water.

[0042] A submersible pump comprises a submersible pump base with a low-suction function.

[0043] However, as is well known to those skilled in the art, the working principle and wiring method of the motor 9 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A submersible pump base with low suction function, characterized in that: include: A base (2), wherein at least one pressure-raising area (13) is provided inside the base (2), a first water inlet area (11) is provided through the bottom of the base (2), the first water inlet area (11) is located at the center of the base (2) and is arranged in a mesh shape, and a plurality of second water inlet areas (12) are provided on the circumference of the base (2); The bottom of the base (2) is fixedly connected to a plurality of base fulcrums (18); a water tank (10) is provided on the circumference of the base (2); a water outlet (4) is provided on the circumference of the base (2); and one end of the water outlet (4) is threadedly connected to a connecting pipe (5).

2. A submersible pump base with low suction function according to claim 1, characterized in that: A plurality of reinforcement plates (16) are provided inside the base (2).

3. A submersible pump base with low suction function according to claim 1, characterized in that: The height of the base support point (18) is 2 mm.

4. A submersible pump, characterized in that: include: The base (2) described in any one of claims 1 to 3, wherein the upper surface of the base (2) is mounted with a housing (1) by a plurality of screws, the interior of the housing (1) is fixedly connected to a motor (9), one end of the output shaft of the motor (9) is fixedly connected to a rotating shaft (7), the circumference of the rotating shaft (7) is fixedly connected to an impeller (8), the impeller (8) is located in the base (2), the bottom of the rotating shaft (7) is threadedly connected to a nut (17), and the nut (17) is located below the impeller (8).

5. A submersible pump according to claim 4, characterized in that: A handle (6) is installed on the upper surface of the housing (1), and a water wave switch (3) is installed above the housing (1) via a wire.

6. A submersible pump according to claim 4, characterized in that: A sealing ring (14) is provided between the base (2) and the housing (1).

7. A submersible pump according to claim 5, characterized in that: The circumference of the base (2) is fixedly connected to an extension rod (19), the upper surface of the extension rod (19) is slidably connected to a penetrating limiting screw (20), the bottom of the limiting screw (20) passes through the extension rod (19) and is fixedly connected to a fixing frame (22), the circumference of the limiting screw (20) is threadedly connected to a nut (21), the nut (21) is located at the bottom of the extension rod (19), and the fixing frame (22) is covered on the surface of the water wave switch (3).

8. A submersible pump according to claim 7, characterized in that: The fixing frame (22) is arranged in a four-claw shape.

9. A submersible pump according to claim 6, characterized in that: A filter screen (15) is provided at the bottom of the first water inlet area (11).

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