Large-flow flood prevention pump suitable for narrow space

By designing a high-flow-rate flood control pump suitable for narrow spaces, the pumping efficiency is improved by utilizing a motor-driven central shaft and inner and outer fan blades. Stable support and movement of the equipment are achieved through a rotatable support structure and wheels. This solves the problem of existing high-flow-rate flood control pumps being difficult to transport and deploy in narrow spaces, and achieves efficient drainage.

CN224214386UActive Publication Date: 2026-05-08NANJING SHIXI PUMP IND TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING SHIXI PUMP IND TECHNOLOGY CO LTD
Filing Date
2025-08-22
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing high-flow-rate flood control pumps are difficult to transport and deploy in confined spaces, limiting their rapid deployment and resulting in low drainage efficiency.

Method used

A high-flow-rate flood control pump suitable for narrow spaces was designed, comprising a pumping mechanism, a support mechanism, and a discharge assembly. The pumping efficiency is improved by using a motor to drive the central shaft and inner and outer fan blades, and the equipment is stably supported and moved by a rotatable support structure and wheels.

Benefits of technology

It enables efficient, high-flow-rate drainage in confined spaces, simplifies the installation and relocation of equipment, and improves the equipment's rapid response capability in extreme weather conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of flood prevention pumps, and discloses a large-flow flood prevention pump suitable for a narrow space, which comprises a shell, a water pumping mechanism is arranged in the shell, the water pumping mechanism is used for pumping water, a supporting mechanism is arranged at the bottom of the shell, the supporting mechanism is used for supporting equipment, the water pumping mechanism comprises a first motor, and a second motor is arranged at the bottom of the shell. The first motor is fixed to the outer wall of the shell, the output end of the first motor penetrates through the outer wall of the shell and is fixedly connected with a center shaft, an outer layer assembly is arranged on the outer wall of the center shaft, inner fan blades are arranged on the inner wall of the outer layer assembly, a water inlet assembly is arranged on the outer wall of the shell, and a water outlet assembly is arranged at one end of the shell. According to the utility model, basic flow is provided through the outer-layer large-diameter blades, suction force is enhanced through the inner-layer small-diameter inner fan blades, the water pumping efficiency is greatly improved, an external water pipe is put into an area to be pumped for water pumping, and operation in a narrow space is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of flood control pump technology, and in particular to a high-flow flood control pump suitable for narrow spaces. Background Technology

[0002] With global climate change, extreme weather events are becoming more frequent, and the frequency and intensity of floods are increasing significantly, posing a huge threat to socio-economic development and the safety of people's lives and property. In urban environments, due to special geographical and spatial conditions, water is easily accumulated under extreme weather conditions, and drainage is difficult. As a key device for responding to floods and quickly removing accumulated water, the efficient application of high-flow-rate flood control pumps in confined spaces is crucial for reducing disaster losses and ensuring the safe operation of cities.

[0003] In early flood control and drainage operations, simple water pumps were mainly used. However, ordinary water pumps had small flow rates, making it difficult to cope with large-scale water accumulation. They were also inconvenient to operate in confined spaces, and the installation and commissioning process was cumbersome, requiring a lot of time and manpower. With the development of technology, existing high-flow flood control pumps have significantly improved in performance. However, they still have many drawbacks when used in confined spaces. High-flow flood control pumps are bulky and heavy, making them difficult to transport and deploy in confined spaces, which limits their rapid deployment. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-flow flood control pump suitable for narrow spaces, aiming to improve the problem that existing high-flow flood control pumps are bulky and heavy, making them difficult to transport and deploy in narrow spaces, thus limiting their rapid deployment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-flow flood control pump suitable for narrow spaces, including a housing, a pumping mechanism inside the housing for pumping water, and a support mechanism at the bottom of the housing for supporting the equipment;

[0006] The pumping mechanism includes a motor, which is fixed to the outer wall of the housing. The output end of the motor is fixedly connected to a central shaft through the outer wall of the housing. An outer layer assembly is provided on the outer wall of the central shaft. An inner fan blade is provided on the inner wall of the outer layer assembly. A water inlet assembly is provided on the outer wall of the housing. A water outlet assembly is provided at one end of the housing. Multiple water outlet assemblies are provided at the bottom of the housing.

[0007] As a further description of the above technical solution:

[0008] The support mechanism includes a rotating foot, the top of which is rotatably connected to the bottom of the outer shell. A fixing block is fixedly connected to the bottom of the outer shell. A tension spring is provided at the bottom of the rotating foot, and the other end of the tension spring is fixedly connected to the bottom of the outer shell. A rotating component is provided in the middle of the fixing block, and a fixing component is provided between two adjacent rotating feet.

[0009] As a further description of the above technical solution:

[0010] The outer component includes a frame fixed to the outer wall of the central shaft, and a plurality of blades are fixedly connected to the middle of the frame.

[0011] As a further description of the above technical solution:

[0012] The water inlet assembly includes a water inlet fixed to the outer wall of the housing, and a filter screen is provided on the inner wall of the water inlet.

[0013] As a further description of the above technical solution:

[0014] The water outlet assembly includes a water outlet, which is located at one end of the housing, and an installation ring is fixedly connected to the outer wall of the water outlet.

[0015] As a further description of the above technical solution:

[0016] The rotating assembly includes a second motor, which is fixed to the outer wall of the fixed block. The output end of the second motor is fixedly connected to a rotating column, and a slot is provided in the middle of the rotating column.

[0017] As a further description of the above technical solution:

[0018] The fixing component includes a pull rope disposed between two adjacent rotating feet, and multiple fixing posts are fixedly connected to the outer wall of the fixing block.

[0019] As a further description of the above technical solution:

[0020] The bottom surface of the outer shell is equipped with wheels, and the outer wall of the frame is fixedly connected with multiple reinforcing ribs.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, a motor drives the central shaft to rotate. The outer layer component and the inner fan blade are fixedly connected to the outer wall of the central shaft. The large-diameter blades of the outer layer provide the basic flow rate, and the small-diameter inner fan blades of the inner layer enhance the suction. The staggered distribution of the blades reduces water flow turbulence and greatly improves the pumping efficiency. The water inlet is set on the outer wall of the shell. The water can be pumped through an external water pipe to the outer wall of the water inlet, and then the external water pipe can be inserted into the pumped area for pumping, which is convenient for operation in narrow spaces.

[0023] 2. In this utility model, after the water pump is installed, the second motor is started. The second motor drives the rotating column to rotate. The pull rope passes through the slot. When the rotating column rotates, the pull rope is wrapped around the outer wall of the rotating column. The pull rope pulls the rotating feet at both ends to rotate, so that the bottom of the rotating feet contacts the ground, thus achieving stable support for the equipment. When the equipment is retrieved, the rotating column is rotated in the opposite direction, the pull rope is released, and the tension spring pulls the rotating feet to rotate, so that the rotating feet are in close contact with the bottom surface of the outer shell. At this time, the wheels are on the ground, which makes it easy to move the equipment. Attached Figure Description

[0024] Figure 1 This is a front perspective view of the high-flow flood control pump suitable for narrow spaces proposed in this utility model;

[0025] Figure 2 This is a partial structural exploded view of the inlet assembly of the high-flow flood control pump suitable for narrow spaces proposed in this utility model;

[0026] Figure 3 This is a partial structural exploded view of the internal fan blades of the high-flow flood control pump suitable for narrow spaces proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of the high-flow flood control pump suitable for confined spaces proposed in this utility model;

[0028] Figure 5 This is a partial structural schematic diagram of the tension spring rotating assembly for a high-flow flood control pump suitable for narrow spaces, as proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Pumping mechanism; 201. Motor 1; 202. Central shaft; 203. Outer assembly; 2031. Frame; 2032. Blades; 204. Inner fan blades; 205. Water inlet assembly; 2051. Water inlet; 2052. Filter screen; 206. Water outlet assembly; 2061. Water outlet; 2062. Mounting ring; 3. Support mechanism; 301. Rotating foot; 302. Fixing block; 303. Tension spring; 304. Rotating assembly; 3041. Motor 2; 3042. Rotating column; 3043. Slot; 305. Fixing assembly; 3051. Fixing post; 3052. Pull rope; 4. Wheel; 5. Reinforcing rib. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a high-flow flood control pump suitable for narrow spaces, including a housing 1, a pumping mechanism 2 is provided inside the housing 1 for pumping water, and a support mechanism 3 is provided at the bottom of the housing 1 for supporting the equipment.

[0033] The pumping mechanism 2 includes a motor 201, which is fixed to the outer wall of the housing 1. The output end of the motor 201 is fixedly connected to a central shaft 202 through the outer wall of the housing 1. An outer layer component 203 is provided on the outer wall of the central shaft 202. An inner fan blade 204 is provided on the inner wall of the outer layer component 203. A water inlet component 205 is provided on the outer wall of the housing 1. A water outlet component 206 is provided at one end of the housing 1. Multiple water outlet components 206 are provided at the bottom of the housing 1.

[0034] Specifically, a pumping mechanism 2 is installed inside the outer casing 1. The main function of the pumping mechanism 2 is to perform pumping operations, ensuring that accumulated water can be quickly and effectively removed in emergencies. A support mechanism 3 is installed at the bottom of the outer casing 1. The support mechanism 3 provides solid support for the entire device, ensuring stable operation in various complex environments. The pumping mechanism 2 includes a motor 201, which is fixed to the outer wall of the outer casing 1. The output end of the motor 201 is connected to the outer wall of the outer casing 1 through a central shaft 202, which passes through the outer casing 1. The outer wall extends into the interior. An outer component 203 is provided on the outer wall of the central shaft 202. An inner fan blade 204 is installed on the inner wall of the outer component 203. The inner fan blade 204 works in conjunction with the outer component 203 to efficiently draw water from the water inlet component 205 and discharge it. The water inlet component 205 is provided on the outer wall of the outer shell 1 to facilitate the intake of water from the outside. A water outlet component 206 is provided at one end of the outer shell 1. Multiple water outlet components 206 are provided at the bottom of the outer shell 1. These water outlet components 206 can ensure that a large flow of water can be drained even in a narrow space.

[0035] Please see the appendix Figure 4 - Appendix Figure 5The support mechanism 3 includes a rotating foot 301, the top of which is rotatably connected to the bottom of the outer shell 1. A fixing block 302 is fixedly connected to the bottom of the outer shell 1. A tension spring 303 is provided at the bottom of the rotating foot 301. The other end of the tension spring 303 is fixedly connected to the bottom of the outer shell 1. A rotating component 304 is provided in the middle of the fixing block 302. A fixing component 305 is provided between adjacent rotating feet 301.

[0036] Specifically, the support mechanism 3 includes a rotating foot 301, the top of which is rotatably connected to the bottom of the outer shell 1, allowing the outer shell 1 to be adjusted in angle within a certain range. A fixing block 302 is fixedly connected to the bottom of the outer shell 1. A tension spring 303 is provided at the bottom of each rotating foot 301, and the other end of the tension spring 303 is fixedly connected to the bottom of the outer shell 1 to ensure that the support mechanism 3 has a certain rebound capability when subjected to external force, thereby maintaining the stability of the overall structure. A rotating component 304 is provided in the middle of the fixing block 302, which can further enhance the connection strength and flexibility between the rotating foot 301 and the outer shell 1. A fixing component 305 is provided between two adjacent rotating feet 301 to ensure that the relative position between the rotating feet 301 remains fixed, thereby maintaining the stability of the support mechanism 3 during use.

[0037] Please see the appendix Figure 1 - Appendix Figure 3 The outer component 203 includes a frame 2031, which is fixed to the outer wall of the central shaft 202. Multiple blades 2032 are fixedly connected to the middle of the frame 2031. The water inlet component 205 includes a water inlet 2051, which is fixed to the outer wall of the outer shell 1. A filter screen 2052 is provided on the inner wall of the water inlet 2051. The water outlet component 206 includes a water outlet 2061, which is located at one end of the outer shell 1. An installation ring 2062 is fixedly connected to the outer wall of the water outlet 2061.

[0038] Specifically, the outer component 203 includes a frame 2031, which is fixed to the outer wall of the central shaft 202 to ensure stability and durability. Multiple blades 2032 are fixedly connected to the middle area of ​​the frame 2031. The blades 2032 can effectively interact with the fluid during operation. The water inlet component 205 includes a water inlet 2051, which is fixedly installed on the outer wall of the housing 1 to ensure smooth water intake and equipment sealing. A filter screen 2052 is provided on the inner wall of the water inlet 2051 to filter out impurities and protect the internal structure from damage. The water outlet component 206 includes a water outlet 2061, which is located at one end of the housing 1 to facilitate fluid discharge. An installation ring 2062 is fixedly connected to the outer wall of the water outlet 2061.

[0039] Please see the appendix Figure 3 - Appendix Figure 5 The rotating component 304 includes a second motor 3041, which is fixed to the outer wall of the fixing block 302. The output end of the second motor 3041 is fixedly connected to a rotating column 3042. A slot 3043 is provided in the middle of the rotating column 3042. The fixing component 305 includes a pull rope 3052, which is arranged between two adjacent rotating feet 301. Multiple fixing posts 3051 are fixedly connected to the outer wall of the fixing block 302. A wheel 4 is provided on the bottom surface of the outer shell 1. Multiple reinforcing ribs 5 are fixedly connected to the outer wall of the frame 2031.

[0040] Specifically, the rotating component 304 includes a second motor 3041, which is fixed to the outer wall of the fixed block 302 to ensure stability and precise motion control. The output end of the second motor 3041 is firmly connected to the rotating column 3042. A slot 3043 is provided in the middle of the rotating column 3042. The fixing component 305 includes a pull rope 3052, which is set between the two adjacent rotating feet 301 to provide necessary support and stability. Multiple fixing posts 3051 are fixedly connected to the outer wall of the fixed block 302, providing additional support points for the entire device. Wheels 4 are provided on the bottom surface of the outer shell 1, allowing the device to move easily. Multiple reinforcing ribs 5 are fixedly connected to the outer wall of the frame 2031 to ensure the stability of the frame 2031 under pressure and impact.

[0041] Working principle: The central shaft 202 is rotated by the motor 201. The outer component 203 and the inner fan blade 204 are fixedly connected to the outer wall of the central shaft 202. The large-diameter outer blade 2032 provides the basic flow rate, and the small-diameter inner fan blade 204 enhances the suction. The staggered distribution of the blades reduces water flow turbulence and greatly improves the pumping efficiency. The water inlet 2051 is set on the outer wall of the outer shell 1. Water can be pumped through an external water pipe to the outer wall of the water inlet 2051 and then inserted into the pumped area for pumping, which is convenient for operation in narrow spaces.

[0042] After the water pump is in place, start motor 3041. Motor 3041 drives the rotating column 3042 to rotate. The pull rope 3052 passes through the slot 3043. When the rotating column 3042 rotates, the pull rope 3052 is wrapped around the outer wall of the rotating column 3042. The pull rope 3052 pulls the rotating feet 301 at both ends to rotate, so that the bottom of the rotating feet 301 contacts the ground, achieving stable support for the equipment. When the equipment is retrieved, rotate the rotating column 3042 in the opposite direction, release the pull rope 3052, and the tension spring 303 pulls the rotating feet 301 to rotate, so that the rotating feet 301 are in close contact with the bottom surface of the outer casing 1. At this time, the wheel 4 is on the ground, which can facilitate the movement of the equipment.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-flow-rate flood control pump suitable for confined spaces, comprising a housing (1), characterized in that: The shell (1) is provided with a water pumping mechanism (2) inside, which is used to pump water. The bottom of the shell (1) is provided with a support mechanism (3) which is used to support the equipment. The pumping mechanism (2) includes a motor (201), which is fixed to the outer wall of the housing (1). The output end of the motor (201) is fixedly connected to a central shaft (202) through the outer wall of the housing (1). An outer layer assembly (203) is provided on the outer wall of the central shaft (202). An inner fan blade (204) is provided on the inner wall of the outer layer assembly (203). A water inlet assembly (205) is provided on the outer wall of the housing (1). A water outlet assembly (206) is provided at one end of the housing (1). Multiple water outlet assemblies (206) are provided at the bottom of the housing (1).

2. The high-flow flood control pump suitable for confined spaces according to claim 1, characterized in that: The support mechanism (3) includes a rotating foot (301), the top of which is rotatably connected to the bottom of the outer shell (1), a fixing block (302) is fixedly connected to the bottom of the outer shell (1), a tension spring (303) is provided at the bottom of the rotating foot (301), the other end of which is fixedly connected to the bottom of the outer shell (1), a rotating component (304) is provided in the middle of the fixing block (302), and a fixing component (305) is provided between adjacent rotating feet (301).

3. The high-flow flood control pump suitable for confined spaces according to claim 1, characterized in that: The outer component (203) includes a frame (2031) which is fixed to the outer wall of the central shaft (202), and a plurality of blades (2032) are fixedly connected to the middle of the frame (2031).

4. The high-flow flood control pump suitable for confined spaces according to claim 1, characterized in that: The water inlet assembly (205) includes a water inlet (2051), which is fixed to the outer wall of the housing (1), and a filter screen (2052) is provided on the inner wall of the water inlet (2051).

5. The high-flow flood control pump suitable for confined spaces according to claim 1, characterized in that: The water outlet assembly (206) includes a water outlet (2061), which is located at one end of the outer shell (1), and an installation ring (2062) is fixedly connected to the outer wall of the water outlet (2061).

6. The high-flow flood control pump suitable for confined spaces according to claim 2, characterized in that: The rotating assembly (304) includes a second motor (3041), which is fixed to the outer wall of the fixing block (302). The output end of the second motor (3041) is fixedly connected to a rotating column (3042), and a slot (3043) is provided in the middle of the rotating column (3042).

7. The high-flow flood control pump suitable for confined spaces according to claim 2, characterized in that: The fixing component (305) includes a pull rope (3052) which is disposed between two adjacent rotating feet (301), and a plurality of fixing posts (3051) are fixedly connected to the outer wall of the fixing block (302).

8. The high-flow flood control pump suitable for confined spaces according to claim 3, characterized in that: The bottom surface of the outer shell (1) is provided with wheels (4), and the outer wall of the frame (2031) is fixedly connected with multiple reinforcing ribs (5).