Centrifugal pump
By designing a centrifugal pump with a rotatable shell and operating lever, combined with a cleaning mechanism and a brush, the problem that traditional centrifugal pumps cannot clean the bottom and inner wall of the fish pond synchronously is solved, and the simultaneous pumping and cleaning are achieved, which improves work efficiency and simplifies equipment.
Patent Information
- Application Number
- CN202511254718.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2025-10-17
AI Technical Summary
Traditional centrifugal pumps in aquaculture cannot simultaneously handle sediment at the bottom of the fish pond and dirt on the pond wall. They need to be operated in steps, which leads to a complex system, high energy consumption and easy damage to the pond body.
A centrifugal pump with a rotatable shell and an adjustable operating lever is designed to achieve rapid switching between vertical and horizontal pumping cleaning. Combined with an adjustable cleaning mechanism and brush, the bottom and inner wall of the fish pond can be cleaned synchronously.
The bottom and inner wall of the fish pond can be cleaned synchronously during the water pumping process, which saves cleaning steps, reduces manpower consumption, simplifies the equipment structure and reduces energy consumption.
Smart Images
Figure CN120798799A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of fluid equipment, and in particular to a centrifugal pump. Background Art
[0002] Centrifugal pumps, as core equipment for fluid transport, are widely used in aquaculture, industrial circulating water systems, and other fields. Traditional centrifugal pumps have a single function, typically used only for pumping or filtering. In aquaculture scenarios, the accumulation of dirt on the bottom and inner walls of fish ponds can seriously affect water quality, leading to a deterioration of the fish's living environment. Existing fish pond cleaning technologies often rely on manual cleaning or independent filtration devices. Existing fish pond filters (such as bottom filters and rotary drum filters) only filter water and cannot simultaneously process bottom sediment. They require additional silt removal equipment, resulting in complex systems and high energy consumption. Some cleaning devices require repeated flushing of the pool walls using robotic arms or high-pressure water flow, which is cumbersome and easily damages the pool structure. Furthermore, cleaning cannot be completed simultaneously with the pumping process. Summary of the Invention
[0003] In view of this, the technical problem to be solved by the present invention is to provide a centrifugal pump, which can realize the rapid switching between vertical water pumping and cleaning and horizontal water pumping and cleaning through the cooperation of a rotatable shell and an adjustable operating lever, thereby solving the technical bottleneck of traditional equipment that requires step-by-step operation.
[0004] A centrifugal pump includes a casing, a discharge pipe is fixedly connected to the casing, an impeller is rotatably connected inside the casing, a waterproof motor is fixedly connected to the outside of the casing, the impeller is fixedly connected to the output shaft of the waterproof motor, a water inlet cylinder is fixedly connected to the lower end of the casing, a plurality of through slots are provided on the water inlet cylinder, a cleaning mechanism is connected to the casing, an adapter is fixedly connected to the surface of the casing, an operating rod is rotatably connected to the adapter, the operating rod is provided with a positioning hole, and the adapter is provided with two positioning holes.
[0005] A handle is fixedly connected to the operating rod.
[0006] A wire tube is fixedly connected to the operating rod.
[0007] The cleaning mechanism includes an eccentric rod, which is fixedly connected to the output shaft of the impeller. Two support plates are fixedly connected to the shell. Slide rods are slidably connected to the two support plates. A mounting plate is fixedly connected between the two slide rods. Multiple groups of brushes are fixedly connected to the lower end of the mounting plate. A slide groove is opened at the upper end of the mounting plate, and the eccentric rod is slidably connected in the slide groove.
[0008] A spiral rod is fixedly connected to the output shaft of the impeller, and the spiral rod surrounds the water inlet cylinder.
[0009] The two supporting plates are both rotatably connected with rotating racks, and the rotating connections between the two rotating racks and the two supporting plates are both equipped with torsion springs.
[0010] Two universal wheels are arranged at the lower ends of the two rotating frames, and arc chamfers are arranged on the inner sides of the universal wheels.
[0011] The plurality of brush groups are nylon brushes.
[0012] A flange is arranged on the liquid discharge pipe.
[0013] The distance between the screw rod and the water inlet cylinder is 5mm. BRIEF DESCRIPTION OF DRAWINGS
[0014] The application will be further described in detail below in combination with the drawings and specific implementation methods.
[0015] Figure 1 And Figure 2 It is a schematic view of the overall structure of a centrifugal pump;
[0016] Figure 3 It is a schematic view of the structure of an operating rod;
[0017] Figure 4 It is a schematic view of the structure of a mounting plate;
[0018] Figure 5 It is a schematic view of the structure of a sliding chute;
[0019] Figure 6 It is a schematic view of the structure of a brush;
[0020] Figure 7 It is a schematic view of the structure of a screw rod;
[0021] Figure 8 It is a schematic view of the structure of an impeller. DETAILED DESCRIPTION
[0022] The application will be described in detail in combination with the drawings in the embodiments of the application.
[0023] A centrifugal pump comprises a shell 101, a liquid discharge pipe 103 fixedly connected to the shell 101, an impeller 102 rotatably connected in the shell 101, a waterproof motor 104 fixedly connected to the outside of the shell 101, the impeller 102 being fixedly connected to the output shaft of the waterproof motor 104, a water inlet cylinder 105 fixedly connected to the lower end of the shell 101, a plurality of through grooves being formed in the shell 101, a cleaning mechanism being connected to the shell 101, a conversion seat 404 fixedly connected to the surface of the shell 101, an operating rod 401 rotatably connected to the conversion seat 404, one positioning hole 405 being formed in the operating rod 401, and two positioning holes 405 being formed in the conversion seat 404.
[0024] Referring to Figures 1-3 ,
[0025] When the centrifugal pump is used, first, the staff holds the operating rod 401 to throw the shell 101 into the fishpond, so that the shell 101 is in the vertical state, at this time, the waterproof motor 104 is started, the waterproof motor 104 is driven to rotate the impeller 102, the centrifugal force generated by the rotation of the impeller 102 can discharge the water in the shell 101 to the outside through the drain pipe 103, at the same time, the negative pressure is generated in the shell 101, and then the multiple through slots on the water inlet cylinder 105 can suck water, so that the function of pumping water by the centrifugal pump is realized, the multiple through slots can play a filtering role on water, so that foreign matters can be prevented from entering the shell 101 or causing the water inlet cylinder 105 to be blocked, so that the waterproof motor 104 is prevented from being damaged.
[0026] When the shell 101 is in the vertical state, the cleaning mechanism at the lower end of the shell 101 can be in contact with the bottom surface of the fishpond, and then in the process of pumping water, the staff manually operates the operating rod 401 to move the shell 101 as a whole, and drives the cleaning mechanism to move, so that the function of cleaning the bottom surface of the fishpond can be realized, and the dirt can be immediately pumped out in the process of cleaning, compared with the conventional mode of pumping water first and then cleaning the dirt, the step of cleaning the dirt alone can be saved, so that the cleaning time is shortened, and the manpower is saved.
[0027] After the bottom of the fishpond is cleaned, the staff rotates the shell 101 to the horizontal state, and then inserts the positioning pin into the two positioning holes 405 at the corresponding positions, so that the shell 101 is kept in the horizontal state, at this time, the shell 101 and the operating rod 401 form a 90° angle, the staff manually operates the operating rod 401 to make the cleaning mechanism adhere to the inner wall of the fishpond, at this time, the operating rod 401 drives the shell 101 and the cleaning mechanism to move again, so that the function of cleaning the dirt on the inner wall of the fishpond can be realized, and the cleaning function of the bottom and the inner wall of the fishpond can be realized by simple adjustment.
[0028] The operating rod 401 is fixedly connected with the handle 402.
[0029] Referring to Figure 3 ,
[0030] The handle 402 is convenient for the staff to manually lift the centrifugal pump, the design conforms to ergonomics, improves the use comfort of the staff, and further improves the work efficiency.
[0031] The operating rod 401 is fixedly connected with the wire tube 403.
[0032] Referring to Figure 3 ,
[0033] The wire tube 403 is used for placing the waterproof motor 104 connecting wire, the waterproof motor 104 connecting wire is passed through the wire tube 403 and is stretched out through the upper end of the wire tube 403, finally, the connecting wire is connected with the power supply to realize the electrification function of the waterproof motor 104, the wire tube 403 can limit the connecting wire, so that the connecting wire can be prevented from interfering with other objects in the moving process, and the normal cleaning progress is avoided.
[0034] The cleaning mechanism comprises an eccentric rod 201 fixedly connected to the output shaft of the impeller 102, two supporting plates 301 fixedly connected to the shell 101, two sliding rods 205 slidingly connected to the two supporting plates 301, an installation plate 202 fixedly connected to the middle of the two sliding rods 205, a plurality of brushes 203 fixedly connected to the lower end of the installation plate 202, and a sliding groove 204 formed in the upper end of the installation plate 202, wherein the eccentric rod 201 is slidingly connected to the sliding groove 204.
[0035] Referring to Figures 5-6 ,
[0036] When the impeller 102 rotates to realize the pumping of sewage, the impeller 102 can also drive the eccentric rod 201 to rotate about the axis of the impeller 102, and the eccentric rod 201 can slide in the sliding groove 204 while rotating, so that the eccentric rod 201 drives the installation plate 202 to reciprocally slide, and the two supporting plates 301 and the two sliding rods 205 cooperate to limit the installation plate 202, thereby ensuring that the installation plate 202 reciprocally slides linearly, and the plurality of brushes 203 reciprocally slide.
[0037] When the plurality of brushes 203 contact the bottom or inner wall of the fish pond, the reciprocally sliding of the plurality of brushes 203 can scrape off the dirt accumulated on the bottom or inner wall of the fish pond, thereby realizing the function of quickly cleaning stubborn dirt, which is achieved by using the power generated by the rotation of the impeller 102, thereby saving the cost and equipment space without separately arranging a power source, and the impeller 102 and the plurality of brushes 203 can be synchronously controlled, which is simple to operate.
[0038] The output shaft of the impeller 102 is fixedly connected with a spiral rod 106, and the spiral rod 106 surrounds the water inlet cylinder 105.
[0039] Referring to Figures 7-8 ,
[0040] When pumping sewage, the impeller 102 rotates to drive the spiral rod 106 to rotate, and since the spiral rod 106 surrounds the water inlet cylinder 105, the foreign matter stuck on the water inlet cylinder 105 can be scraped off when the spiral rod 106 rotates, thereby avoiding the foreign matter from blocking the plurality of through grooves on the water inlet cylinder 105, ensuring the smooth flow of water, and further ensuring the normal operation of the centrifugal pump.
[0041] Due to the helical shape of the screw rod 106, the foreign matter can automatically move downward along the surface of the screw rod 106 when the screw rod 106 rotates, thereby avoiding the situation that the foreign matter continuously adheres to the through groove along the screw rod 106.
[0042] The two supporting plates 301 are rotationally connected with rotary frames 302, and the rotary frames 302 are provided with torsion springs 304 at the rotationally connected positions of the two supporting plates 301.
[0043] Referring to Figure 5 ,
[0044] The rotary frame 302 is used for supporting the centrifugal pump, and when the shell 101 is in a vertical state, the rotary frame 302 can support the shell 101 under the action of the two torsion springs 304, and the plurality of brush groups 203 are in a suspended state, and when the worker presses the shell 101, the plurality of brush groups 203 can be close to the bottom surface of the fish tank, so as to realize the function of cleaning dirt, and the design can avoid the plurality of brush groups 203 directly contacting the bottom surface of the fish tank, thereby avoiding hard contact to cause the plurality of brush groups 203 to be broken and deformed, affecting the cleaning effect, and causing unnecessary economic losses.
[0045] The two rotary frames 302 are provided with universal wheels 303 at the lower ends, and the inner sides of the universal wheels 303 are provided with circular arc chamfers.
[0046] Referring to Figure 5 ,
[0047] The universal wheel 303 facilitates the worker to move the centrifugal pump, and reduces the damping feeling between the centrifugal pump and the bottom surface or the inner wall of the fish tank, and since the inner side of the universal wheel 303 is provided with a circular arc chamfer, the universal wheel 303 can still contact the bottom surface of the fish tank when the two rotary frames 302 rotate, thereby realizing the moving function.
[0048] The plurality of brush groups 203 are nylon brushes.
[0049] Referring to Figure 6 ,
[0050] The nylon brush has good corrosion resistance and is suitable for cleaning the inner wall of the fish tank.
[0051] The drain pipe 103 is provided with a flange.
[0052] Referring to Figure 1 ,
[0053] The drain pipe 103 and other pipelines are fixed through the flange, thereby the drain pipe 103 can be extended, so that the sewage can be discharged to a specified position.
[0054] The distance between the screw rod 106 and the water inlet cylinder 105 is 5 mm.
[0055] Referring toFigure 7 ,
[0056] The space between the helical rod 106 and the water inlet cylinder 105 can avoid friction between them, and can also scrape off foreign matters that can block the through groove.
Claims
1. A centrifugal pump, characterized in that: It includes a shell, a drain pipe is fixedly connected to the shell, an impeller is rotatably connected inside the shell, a waterproof motor is fixedly connected to the outside of the shell, the impeller is fixedly connected to the output shaft of the waterproof motor, the lower end of the shell is fixedly connected to a water inlet cylinder, a plurality of through slots are provided on the water inlet cylinder, a cleaning mechanism is connected to the shell, an adapter is fixedly connected to the surface of the shell, an operating rod is rotatably connected to the adapter, the operating rod is provided with a positioning hole, and the adapter is provided with two positioning holes.
2. A centrifugal pump according to claim 1, characterized in that: A handle is fixedly connected to the operating rod.
3. A centrifugal pump according to claim 2, characterized in that: A wire tube is fixedly connected to the operating rod.
4. A centrifugal pump according to claim 1, characterized in that: The cleaning mechanism includes an eccentric rod, which is fixedly connected to the output shaft of the impeller. Two support plates are fixedly connected to the shell. Slide rods are slidably connected to the two support plates. A mounting plate is fixedly connected between the two slide rods. Multiple groups of brushes are fixedly connected to the lower end of the mounting plate. A slide groove is opened at the upper end of the mounting plate, and the eccentric rod is slidably connected in the slide groove.
5. A centrifugal pump according to claim 4, characterized in that: A spiral rod is fixedly connected to the output shaft of the impeller, and the spiral rod surrounds the water inlet cylinder.
6. A centrifugal pump according to claim 5, characterized in that: The two supporting plates are both rotatably connected with rotating racks, and the rotating connections between the two rotating racks and the two supporting plates are both equipped with torsion springs.
7. A centrifugal pump according to claim 6, characterized in that: Universal wheels are installed at the lower ends of the two rotating frames, and arc chamfers are arranged on the inner sides of the universal wheels.
8. A centrifugal pump according to claim 4, characterized in that: Multiple sets of brushes are made of nylon brushes.
9. A centrifugal pump according to claim 1, characterized in that: A flange is provided on the discharge pipe.
10. A centrifugal pump according to claim 1, characterized in that: The distance between the spiral rod and the water inlet cylinder is 5mm.