Buoyancy box type submersible sewage pump
By designing a vertical structure and a debris-blocking screen, the problems of easy clogging and wear of floating-box water pumps are solved, achieving efficient operation and long service life in complex water quality environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAODING YINHONG PUMP IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-21
AI Technical Summary
Existing floating box pumps are prone to clogging and damage due to the intake of debris, and vertically arranged submersible pumps for wells suffer severe wear in complex water environments, affecting their service life.
Designed as a vertical floating submersible sewage pump, it is equipped with a trash rack and a cleaning device. The trash rack intercepts debris, and the cleaning device removes the debris attached to the rack. Combined with the buoyancy of the float, the pump floats on the water surface, and the support rod is fixed in position.
It effectively prevents debris from entering the water pump, reduces wear, extends service life, adapts to water level changes, improves pumping efficiency, and simplifies maintenance and repair.
Smart Images

Figure CN224149800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pumps, and in particular to a floating box type submersible sewage pump. Background Technology
[0002] Water pumps are mechanical devices that transport or pressurize liquids. They are widely used in agricultural irrigation, urban water supply, sewage treatment, and many other fields, playing a crucial role in the allocation and utilization of water resources. Floating-box submersible sewage pumps, as a special type of water pump, combine the buoyancy characteristics of a floating box with the high water quality adaptability of a submersible sewage pump. They can operate on the water surface and are particularly suitable for scenarios with poor water quality, river and canal water intake, and river dredging.
[0003] Most existing float-type water pumps are submersible pumps for wells, and the pumps are arranged horizontally. This design is unfavorable for the operating conditions of submersible pumps for wells, accelerating pump wear and being extremely disadvantageous for water intake from rivers and canals with complex water quality. In addition, during operation, the pumps are prone to sucking in floating objects, aquatic plants, and other debris, causing blockages and damage to the pumps. Summary of the Invention
[0004] This utility model provides a float-type submersible sewage pump, which can prevent debris from entering the pump, allowing the pump to draw river water more effectively. The pump is vertically mounted, which reduces pump wear and extends its service life. The specific technical solution is as follows:
[0005] A floating box type submersible sewage pump includes a frame and a water pump disposed in the middle of the frame. The pump is characterized in that a floating box is disposed at the top of the frame and a debris screen is disposed at the bottom of the frame. The water pump is vertically disposed, and the water inlet at the bottom of the water pump is located above the debris screen. The debris screen is used to intercept debris in the water. A cleaning device is also disposed on the frame to remove debris attached to the debris screen.
[0006] Furthermore, the cleaning device includes a cleaning shovel and a driving device for driving the cleaning shovel to swing; the cleaning shovel includes shovel teeth and a connecting rod fixed to the shovel teeth, the upper end of the connecting rod is hinged to the frame, and the middle part of the connecting rod is connected to the driving device. The driving device drives the cleaning shovel to swing back and forth, so that the shovel teeth are inserted into the gap of the debris screen, thereby removing the debris attached to the debris screen.
[0007] Furthermore, the drive device includes a motor, a transmission shaft, a first connecting rod, and a second connecting rod. A small gear is provided on the motor shaft of the motor, and a large gear that meshes with the small gear is provided on the transmission shaft. One end of the first connecting rod is connected to the transmission shaft, and the other end of the first connecting rod is hinged to the second connecting rod. A U-shaped frame is provided at the end of the second connecting rod away from the first connecting rod, and the second connecting rod is connected to the connecting rod of the cleaning shovel through the U-shaped frame.
[0008] Furthermore, the motor is fixed on the crossbar of the frame, and there are two of each of the first link, the second link, and the connecting rod, which are symmetrically arranged on both sides of the frame. The drive shaft passes through the frame and is connected to the first link. The motor drives the drive shaft to rotate the first link, thereby causing the cleaning shovel to swing back and forth to remove debris from the screen.
[0009] Furthermore, a fixed angle steel is installed at the top of the frame, located between the two floats, and the water pump is connected and fixed to the fixed angle steel by bolts.
[0010] Furthermore, there are two pontoons, symmetrically arranged at the left and right ends of the frame. The pontoons are connected and fixed to the frame by locking hoops. The buoyancy generated by the pontoons in the water allows the water pump to float on the upper layer of the water.
[0011] Furthermore, a pipe is connected to the outlet on one side of the water pump, through which the water pumped by the water pump can be transported.
[0012] Furthermore, a support rod is installed on one side of the frame. One end of the support rod is connected to the frame, and the other end of the support rod is equipped with a ground anchor, which is fixed to the ground to prevent the frame from shifting.
[0013] Furthermore, the support rod is a telescopic rod, and its length can be adjusted as needed to better secure the ground anchor.
[0014] Furthermore, there are two support rods, one end of which is connected to the frame by bolts, and the angle of the support rod can be adjusted as needed.
[0015] The beneficial effects of this utility model are as follows: 1. The float box allows the water pump to float on the upper layer of the water, preventing it from sinking to the bottom and reducing the risk of blockage by large particles, sludge, or other debris in the sewage, thus ensuring the normal operation of the water pump. 2. The vertical installation of the water pump reduces wear and extends its service life. 3. The float box allows the water pump to move up and down with changes in water level, adapting to fluctuations in river water levels. 4. The simple structure of the float box facilitates installation and disassembly, making maintenance and repair of the water pump convenient. 5. The debris screen can intercept floating objects, aquatic plants, and other debris in the water, preventing them from entering the water pump and causing blockages or damage. 6. The cleaning device can remove debris attached to the debris screen, allowing the water pump to draw water more effectively. Attached Figure Description
[0016] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ;
[0017] Figure 2 This is a three-dimensional representation of the present invention. Figure 2 ;
[0018] Figure 3 This is a three-dimensional representation of the present invention. Figure 3 ;
[0019] Figure 4 This utility model is a three-dimensional cleaning device. Figure 1 ;
[0020] Figure 5 This utility model is a three-dimensional cleaning device. Figure 2 ;
[0021] Figure 6 This is a schematic diagram of the cleaning shovel of this utility model. Detailed Implementation
[0022] To better understand the purpose, function, and specific design scheme of this utility model, the floating box type submersible sewage pump of this utility model will be described in further detail below with reference to the accompanying drawings.
[0023] like Figures 1-3 As shown, the floating box type submersible sewage pump of this utility model includes a frame 1 and a water pump 2 disposed in the middle of the frame 1. A float box 3 is disposed on the top of the frame 1, and a debris screen 4 is disposed on the bottom of the frame 1. The water pump 2 is vertically disposed, with the water inlet 21 at the bottom of the water pump located above the debris screen 4. A pipe is connected to the water outlet 22 on one side of the water pump 2, through which the water pumped by the water pump 2 can be transported. The debris screen 4 is used to intercept debris in the water, and a cleaning device is also provided on the frame 1 to remove debris attached to the debris screen 4.
[0024] Specifically, such as Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the cleaning device includes a cleaning shovel 6 and a driving device 5 for driving the cleaning shovel 6 to swing. The cleaning shovel 6 includes shovel teeth 62 and a connecting rod 61 fixed to the shovel teeth 62. The upper end of the connecting rod 61 is hinged to the frame 1, and the middle part of the connecting rod 61 is connected to the driving device 5. The driving device 5 drives the cleaning shovel 6 to swing back and forth, so that the shovel teeth 62 are inserted into the gaps of the debris barrier 4, thereby removing the debris attached to the debris barrier 4.
[0025] The drive device 5 includes a motor 51, a transmission shaft 54, a first connecting rod 55, and a second connecting rod 56. A small gear 52 is provided on the motor shaft of the motor 51, and a large gear 53 that meshes with the small gear 52 is provided on the transmission shaft 54. One end of the first connecting rod 55 is connected to the transmission shaft 54, and the other end of the first connecting rod 55 is hinged to the second connecting rod 56. A U-shaped frame is provided at the end of the second connecting rod 56 away from the first connecting rod 55, and the second connecting rod 56 is connected to the connecting rod 61 of the cleaning shovel 6 through the U-shaped frame.
[0026] like Figure 2 , Figure 4 and Figure 5 As shown, the motor 51 is fixed on the crossbar 12 of the frame 1. There are two of each of the first connecting rod 55, the second connecting rod 56, and the connecting rod 61, which are symmetrically arranged on both sides of the frame 1. The drive shaft 54 passes through the frame 1 and is connected to the first connecting rod 55. The motor 51 drives the drive shaft 54 to rotate the first connecting rod 55, thereby causing the cleaning shovel 6 to swing back and forth to remove debris from the trash rack 4.
[0027] like Figure 1 and Figure 2 As shown, a fixed angle steel 11 is provided on the top of the frame 1. The fixed angle steel 11 is located between the two float boxes 3. The water pump 2 is connected and fixed to the fixed angle steel 11 by bolts.
[0028] There are two float boxes 3, which are symmetrically arranged at the left and right ends of the frame 1. The float boxes 3 are connected and fixed to the frame 1 by locking hoops 9. The buoyancy generated by the float boxes 3 in the water enables the water pump 2 to float on the upper layer of the water.
[0029] like Figures 1-3 As shown, a support rod 7 is provided on one side of the frame 1. One end of the support rod 7 is connected to the frame 1, and the other end of the support rod 7 is provided with a ground anchor 8. The ground anchor 8 is fixed to the ground to prevent the frame 1 from shifting and to keep the water pump 2 in the optimal water intake position.
[0030] The support rod 7 is a telescopic rod, and its length can be adjusted as needed to better secure the ground anchor 8.
[0031] There are two support rods 7. One end of the support rod 7 is connected to the frame by bolts, and the angle of the support rod 7 can be adjusted as needed.
[0032] In use, the submersible sewage pump is placed into the water. Pump 2 floats under the action of the float box 3, which prevents pump 2 from sinking to the bottom and causing blockage. The length of the support rod 7 and the angle of the two support rods 7 are adjusted as needed to position pump 2 at the optimal water intake position. While pump 2 is operating, the cleaning device is simultaneously activated to remove debris adhering to the screen 4 due to the suction of pump 2, ensuring the normal operation of pump 2.
[0033] The float box of this invention allows the water pump 2 to float on the upper layer of the water. The debris screen 4 is used to intercept debris in the water, and the cleaning shovel 6 can remove debris attached to the debris screen 4 to ensure the normal operation of the water pump. The frame 1 is fixed by the ground anchor 8, which allows the water pump 2 to be in an optimal working position, enabling smoother water extraction, improving pumping efficiency, protecting the pump equipment, reducing wear and tear, and extending the pump's service life. The float box allows the water pump to float up and down with changes in water level, adapting to different water conditions. The float box has a simple structure, is easy to install and disassemble, and facilitates maintenance and repair of the water pump. The water pump can operate stably, reducing energy consumption increases caused by blockages or excessive wear.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A floating sewage pump comprising a frame and a water pump arranged in the middle of the frame, characterized in that, The top of the frame is equipped with a float box, and the bottom of the frame is equipped with a debris screen. The water pump is vertically installed, and the water inlet at the bottom of the water pump is located above the debris screen. The debris screen is used to intercept debris in the water. The frame is also equipped with a cleaning device, which can remove debris attached to the debris screen.
2. The floating cistern submersible sewage pump according to claim 1, characterized in that: The cleaning device includes a cleaning shovel and a drive device for driving the cleaning shovel to swing. The cleaning shovel includes shovel teeth and a connecting rod fixed to the shovel teeth. The upper end of the connecting rod is hinged to the frame, and the middle part of the connecting rod is connected to the drive device. The drive device drives the cleaning shovel to swing back and forth, so that the shovel teeth are inserted into the gaps of the debris screen, thereby removing the debris attached to the debris screen.
3. The floating cistern submersible sewage pump according to claim 2, characterized in that: The drive unit includes a motor, a drive shaft, a first connecting rod, and a second connecting rod. A small gear is provided on the motor shaft of the motor, and a large gear that meshes with the small gear is provided on the drive shaft. One end of the first connecting rod is connected to the drive shaft, and the other end of the first connecting rod is hinged to the second connecting rod. A U-shaped frame is provided at the end of the second connecting rod away from the first connecting rod, and the second connecting rod is connected to the connecting rod of the cleaning shovel through the U-shaped frame.
4. The floating cistern submersible sewage pump according to claim 3, characterized in that: The motor is fixed on the crossbar of the frame. There are two first connecting rods, two second connecting rods, and two connecting rods, which are symmetrically arranged on both sides of the frame. The drive shaft passes through the frame and is connected to the first connecting rod. The motor drives the drive shaft to rotate the first connecting rod, thereby causing the cleaning shovel to swing back and forth to remove debris from the screen.
5. The float tank submersible sewage pump of claim 1, wherein: The top of the frame is equipped with a fixed angle steel, which is located between the two floats. The water pump is connected and fixed to the fixed angle steel by bolts.
6. The floating cistern submersible sewage pump according to claim 1 or 5, characterized in that: There are two pontoons, symmetrically arranged at the left and right ends of the frame. The pontoons are connected and fixed to the frame by locking hoops. The buoyancy generated by the pontoons in the water allows the water pump to float on the upper layer of the water.
7. The float tank submersible sewage pump of claim 1, wherein: A pipe is connected to the outlet on one side of the water pump, through which the water pumped by the pump can be transported.
8. The float tank submersible sewage pump of claim 1, wherein: A support rod is installed on one side of the frame. One end of the support rod is connected to the frame, and the other end of the support rod is anchored to the ground to prevent the frame from shifting.
9. The floating cistern submersible sewage pump according to claim 8, characterized in that: The support rod is a telescopic rod, and its length can be adjusted as needed to better secure the ground anchor.
10. The floating cistern submersible sewage pump according to claim 9, characterized in that: There are two support rods, one end of which is connected to the frame by bolts. The angle of the support rods can be adjusted as needed.