Submersible pump type safe drainage device

By improving the structural design of the submersible pump-type safety drainage device, the power stability and water backflow prevention are ensured, solving the problem of failure caused by power instability, extending service life and reducing maintenance costs.

CN224187766UActive Publication Date: 2026-05-01ZHEJIANG OUDEJIE ELECTROMECHANICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG OUDEJIE ELECTROMECHANICAL CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing submersible pump-type safety drainage devices suffer from unstable power, resulting in a high failure rate, which affects service life and maintenance frequency, and increases operating costs.

Method used

The design incorporates a casing, protective frame, drive motor, drive gear, driven gear, main shaft, load-bearing bearing, pressurized backward-curved impeller, and water-proof rubber layer to ensure dynamic stability. It also features a movable cover, inner spring, casing cover, and outlet threaded pipe to prevent water backflow, reducing damage and safety hazards.

Benefits of technology

It improves the dynamic stability of the device, reduces the failure rate and maintenance frequency, extends the service life, and reduces the operating cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a submersible pump type safe drainage device, which belongs to the field of submersible pump safe drainage and comprises a shell, a protective frame is fixedly connected to the outer wall of the shell, a frame cover is fixedly connected to the top of the protective frame, and a transmission motor is fixedly connected to the bottom of the frame cover. An output shaft of the transmission motor is fixedly connected with a transmission gear through a coupler, and the transmission gear is meshed with a driven gear. A shell, a protection frame, a frame cover, a transmission motor, a transmission gear, a driven gear, a main shaft, a carrying bearing, a pressurized rear bent impeller and a waterproof rubber layer are arranged. By adopting the structural design, when the submersible pump type safe drainage device works, the dynamic stability is good, so that the situation of power failures in the working process is reduced, the service life of the whole device is prolonged, and the maintenance frequency and the use cost of the submersible pump type safe drainage device in the subsequent working process are reduced.
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Description

Technical Field

[0001] This utility model relates to fluid transport equipment for drainage, specifically a submersible pump-type safety drainage device. Background Technology

[0002] Submersible pump-type safety drainage devices are pumps that can operate fully or partially submerged in water. They use a motor to drive an impeller to rotate and pump liquid from a low point to a high point. They are widely used in drainage, irrigation, and industrial liquid transportation. They have advantages such as high efficiency and energy saving, easy installation and maintenance. At the same time, they must be equipped with safety features such as waterproofing, overload protection, and leakage detection to ensure stable operation and safe operation.

[0003] However, current submersible pump-type safety drainage devices on the market suffer from unstable power supply, leading to frequent power failures during operation. This affects the overall lifespan of the drainage device and results in more frequent maintenance and repairs, ultimately increasing operating costs. Therefore, it is necessary to improve the structure of submersible pump-type safety drainage devices to ensure stable power supply and reduce failure rates and operating costs. Utility Model Content

[0004] To overcome the problems existing in the prior art, this utility model provides a submersible pump-type safety drainage device. This submersible pump-type safety drainage device exhibits good power stability and a low failure rate during operation, effectively reducing operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A submersible pump-type safety drainage device includes a housing. A protective frame is fixedly connected to the outer wall of the housing. A frame cover is fixedly connected to the top of the protective frame. A drive motor is fixedly connected to the bottom of the frame cover. The output shaft of the drive motor is fixedly connected to a drive gear via a coupling. The drive gear meshes with a driven gear. A main shaft is fixedly connected to one side of the driven gear. A load-bearing bearing is fixedly connected to the outer wall of the main shaft. A pressure-boosting backward-curved impeller is fixedly connected to the outer wall of the main shaft. A water-resistant adhesive layer is fixedly connected to the outer wall of the main shaft. This invention, through the above structural design, ensures good power stability during operation of the submersible pump-type safety drainage device, thereby reducing the occurrence of power failures during operation, extending the overall service life of the device, and reducing the frequency of maintenance and operating costs.

[0007] As a preferred technical solution of this application, in the aforementioned submersible pump-type safety drainage device, a movable cover is movably connected to the outer wall of the main shaft, and an inner spring is fixedly connected to one side of the movable cover. This can prevent the backflow of internal water, thereby reducing the possibility of device damage, lowering the probability of safety hazards, and improving the overall service life of the device, which is beneficial to the long-term use of the device.

[0008] As a preferred technical solution of this application, in the aforementioned submersible pump-type safety drainage device, one end of the inner spring is fixedly connected to a shell cover, and one side of the shell cover is fixedly connected to a water outlet threaded pipe, which facilitates the discharge of water after extraction.

[0009] In the aforementioned submersible pump-type safety drainage device, which is a preferred technical solution of this application, the outer wall of the housing is movably connected with mounting bolts, and the number of mounting bolts is two, which facilitates the connection of other working parts and is beneficial to the long-term use of other parts.

[0010] As a preferred technical solution of this application, in the aforementioned submersible pump-type safety drainage device, the outer wall of the mounting bolt is movably connected to a mounting plate, and the bottom of the mounting plate is fixedly connected to a movable handle.

[0011] As a preferred technical solution of this application, in the aforementioned submersible pump-type safety drainage device, the outer wall of the outer shell is provided with holes, and the holes of the outer shell are located in the middle area of ​​the outer shell, which allows water to enter the device and thus allows the water to be quickly pumped to the working position.

[0012] As a preferred technical solution of this application, in the aforementioned submersible pump-type safety drainage device, the outer wall of the main shaft is fixedly connected to the interior of the pressurized backward curved impeller, and the number of pressurized backward curved impellers is three, which can pressurize the water flow direction, thereby enabling the water to flow quickly and stably.

[0013] Compared with existing technologies, this utility model, through the inclusion of a shell, protective frame, frame cover, drive motor, drive gear, driven gear, main shaft, bearing, pressurized backward-curved impeller, and water-proof adhesive layer, achieves good dynamic stability during operation of the submersible pump-type safety drainage device. This reduces the occurrence of power failures during operation, extends the overall service life of the device, and lowers the frequency of maintenance and operating costs. Furthermore, by incorporating a movable cover, inner spring, shell cover, and outlet threaded pipe, this utility model prevents backflow of internal water, thereby reducing the likelihood of device damage and lowering the probability of safety hazards. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional view of the overall structure of the submersible pump-type safety drainage device of this utility model;

[0016] Figure 2 This is a bottom view of the submersible pump-type safety drainage device of this utility model;

[0017] Figure 3 This is a left view of the structure of the submersible pump-type safety drainage device of this utility model;

[0018] Figure 4 This is a side sectional view of the submersible pump-type safety drainage device of this utility model;

[0019] Figure 5 This is a diagram showing the internal structure of the submersible pump-type safety drainage device of this utility model.

[0020] The markings in the diagram are as follows:

[0021] 1. Outer shell; 2. Protective frame; 3. Frame cover; 4. Drive motor; 5. Drive gear; 6. Driven gear; 7. Main shaft; 8. Bearing; 9. Pressurized backward curved impeller; 10. Waterproof rubber layer; 11. Movable cover; 12. Inner spring; 13. Shell cover; 14. Outlet threaded pipe; 15. Mounting bolts; 16. Mounting plate; 17. Moving handle. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 The submersible pump-type safety drainage device of this utility model includes a housing 1, a protective frame 2 fixedly connected to the outer wall of the housing 1, a frame cover 3 fixedly connected to the top of the protective frame 2, a drive motor 4 fixedly connected to the bottom of the frame cover 3, and a drive gear 5 fixedly connected to the output shaft of the drive motor 4 through a coupling, and the drive gear 5 meshes with a driven gear 6.

[0024] In one embodiment, a main shaft 7 is fixedly connected to one side of the driven gear 6, a bearing 8 is fixedly connected to the outer wall of the main shaft 7, a booster impeller 9 is fixedly connected to the outer wall of the main shaft 7, and a water-proof adhesive layer 10 is fixedly connected to the outer wall of the main shaft 7. This makes the submersible pump-type safety drainage device more convenient to use, effectively provides stable power, reduces power failures during operation, improves the overall service life of the device, reduces the maintenance and upkeep rate in subsequent operations, and lowers the operating costs in subsequent operations, which is conducive to the long-term use of the submersible pump-type safety drainage device.

[0025] In one embodiment, a movable cover 11 is movably connected to the outer wall of the main shaft 7. An inner spring 12 is fixedly connected to one side of the movable cover 11, which can prevent the backflow of internal water, thereby reducing the possibility of device damage, lowering the probability of safety hazards, and improving the overall service life of the device, which is conducive to the long-term use of the device. One end of the inner spring 12 is fixedly connected to a shell cover 13, and a water outlet threaded pipe 14 is fixedly connected to one side of the shell cover 13, which facilitates the discharge of water after extraction.

[0026] In one embodiment, the outer wall of the housing 1 is movably connected with mounting bolts 15, and there are two mounting bolts 15, which facilitates the connection of other working parts. The bolts are set in pairs to distribute the force, which is beneficial to the long-term use of related parts. The outer wall of the mounting bolts 15 is movably connected with a mounting plate 16, and the bottom of the mounting plate 16 is fixedly connected with a movable handle 17.

[0027] In one embodiment, the outer wall of the housing 1 is provided with holes, and the holes of the housing 1 are located in the middle area of ​​the housing 1, which allows water to enter the device and thus allow the water to be quickly drawn to the working position. The outer wall of the main shaft 7 is fixedly connected to the interior of the pressurized backward curved impeller 9, and there are three pressurized backward curved impellers 9, which can pressurize the water flow direction, so that the water can flow quickly and stably.

[0028] See Figure 1-5 When the user needs to use the submersible pump-type safety drainage device, the device is connected and locked to the external pipe through the outlet threaded pipe 14. The entire device is lowered into the water source by moving the handle 17. The drive motor 4 starts to work. The output shaft of the drive motor 4 rotates, causing the drive gear 5 to rotate, which in turn causes the driven gear 6 and the main shaft 7 to rotate. At the same time, the inner wall of the bearing 8 rotates, which causes the pressurized impeller 9 to pressurize the water and deliver it to the movable cover 11. The inner spring 12 on one side of the movable cover 11 is compressed and contracts, which separates the movable cover 11 from the main shaft 7, allowing the water to be flushed out from the outlet threaded pipe 14.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 submersible pump-type safety drainage device, comprising a housing (1), characterized in that: A protective frame (2) is fixedly connected to the outer wall of the outer shell (1). A frame cover (3) is fixedly connected to the top of the protective frame (2). A drive motor (4) is fixedly connected to the bottom of the frame cover (3). A drive gear (5) is fixedly connected to the output shaft of the drive motor (4) through a coupling. The drive gear (5) meshes with a driven gear (6). A main shaft (7) is fixedly connected to one side of the driven gear (6), a bearing (8) is fixedly connected to the outer wall of the main shaft (7), a booster impeller (9) is fixedly connected to the outer wall of the main shaft (7), and a water-resistant adhesive layer (10) is fixedly connected to the outer wall of the main shaft (7).

2. The submersible pump-type safety drainage device according to claim 1, characterized in that: The outer wall of the main shaft (7) is movably connected to a movable cover (11), and an inner spring (12) is fixedly connected to one side of the movable cover (11).

3. The submersible pump-type safety drainage device according to claim 2, characterized in that: One end of the inner spring (12) is fixedly connected to the cover (13), and one side of the cover (13) is fixedly connected to the outlet threaded pipe (14).

4. The submersible pump-type safety drainage device according to claim 1, characterized in that: The outer wall of the outer casing (1) is movably connected with mounting bolts (15), and there are two mounting bolts (15).

5. The submersible pump-type safety drainage device according to claim 4, characterized in that: The mounting bolt (15) is movably connected to the outer wall of the mounting plate (16), and the bottom of the mounting plate (16) is fixedly connected to the movable handle (17).

6. The submersible pump-type safety drainage device according to claim 1, characterized in that: The outer wall of the outer shell (1) is provided with holes, and the holes of the outer shell (1) are located in the middle area of ​​the outer shell (1).

7. The submersible pump-type safety drainage device according to any one of claims 1-6, characterized in that: The outer wall of the main shaft (7) is fixedly connected to the interior of the pressurized backward curved impeller (9), and the number of pressurized backward curved impellers (9) is three.