A maintenance device based on dam maintenance gate

By designing a support box and a multi-stage hydraulic telescopic device on the dam maintenance gate, combined with the mechanical self-locking structure of the screw and toothed plate, the swaying and offset problems of the existing device during high-altitude operations were solved, achieving high-precision position adjustment and stability, and improving the safety and adaptability of dam maintenance.

CN224394540UActive Publication Date: 2026-06-23HUADIANFU NEW ENERGY CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUADIANFU NEW ENERGY CORP LTD
Filing Date
2025-07-18
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing maintenance devices for dam maintenance gates lack a stable support system, which makes them prone to swaying or shifting during high-altitude operations, posing a safety threat. Furthermore, they are difficult to adapt to the design parameters of different dam maintenance gates, resulting in poor versatility.

Method used

A maintenance device was designed, comprising a support box, a working platform, a lead screw, a support groove, a support plate, an adjusting plate, a multi-stage hydraulic telescopic device, and a mechanical self-locking structure. Through the threaded transmission of the slide groove and the lead screw, and the cooperation of the support groove and the support plate, the working platform can be precisely adjusted and fixed. The multi-stage hydraulic telescopic device and the meshing and locking of the toothed blocks and plates ensure the stability of the platform at different heights and positions.

Benefits of technology

It achieves high-precision positioning and stability of the work platform on the dam maintenance gate, is suitable for maintenance areas of different widths and heights, improves the safety and efficiency of maintenance, and reduces the risk to the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224394540U_ABST
    Figure CN224394540U_ABST
Patent Text Reader

Abstract

The utility model relates to dam maintenance gate maintenance technical field, concretely is a kind of maintenance device based on dam maintenance gate, including support box and operation platform, installation mechanism is equipped on the support box, the bottom end of support box is equipped with sliding slot, screw rod is equipped on the sliding slot, driving mechanism is equipped between the support box with the screw rod, support groove is equipped in the both sides of sliding slot, support plate is equipped on the support groove, adjusting plate is equipped between two support plates, threaded hole is equipped on the adjusting plate, and the stability of structure and carrying capacity are improved by support groove and support plate structure, screw rod transmission and adjusting plate realize transverse flexible adjustment, multistage hydraulic telescopic device realizes that height adjustment range is big, and response is stable, and the height fixing mode of safe and reliable is realized by gear block and gear plate locking mechanism, can be applied in different size types of maintenance valve and carry out maintenance operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of dam maintenance gate technology, specifically a maintenance device based on dam maintenance gates. Background Technology

[0002] As is well known, in the field of water conservancy engineering, dam maintenance gates are important facilities for controlling water levels and flow. Their normal operation is crucial to ensuring the safety and stability of the water conservancy system. With the increase of service life and the influence of external environmental factors, dam maintenance gates may experience wear and corrosion, thus requiring regular maintenance and repair. However, in actual operation, due to the different design parameters of different dam maintenance gates, maintenance devices with poor versatility often cannot meet various needs, resulting in a lot of time being spent on adjustment and adaptation before each operation. For maintenance work, it is very important to be able to accurately position the work platform to the required maintenance location. In high-altitude working environments, the safety performance of maintenance devices is particularly critical. However, because some older maintenance devices lack a stable support system, they are prone to swaying or displacement when working at heights, posing a potential safety threat to maintenance personnel. Therefore, it is necessary to propose solutions to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a maintenance device based on a dam maintenance gate.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a maintenance device based on a dam inspection gate, comprising a support box and a working platform. The support box is provided with an installation mechanism, a sliding groove is provided at the bottom of the support box, a lead screw is provided on the sliding groove, a driving mechanism is provided between the support box and the lead screw, support grooves are provided on both sides of the sliding groove, support plates are provided on the support grooves, an adjusting plate is provided between the two support plates, a threaded hole is provided on the adjusting plate, the lead screw passes through the threaded hole, a reinforcing plate is provided at the bottom of the adjusting plate, an installation groove and a lifting groove are provided at the bottom of the reinforcing plate, a multi-stage hydraulic telescopic device is provided between the installation groove and the working platform, a toothed plate is provided at the top of the working platform and extends into the lifting groove, a telescopic mechanism is provided on one side of the reinforcing plate, and a toothed block is provided between the output end of the telescopic mechanism and the lifting groove.

[0007] Furthermore, the present invention is improved in that the driving mechanism includes a drive motor, the drive motor is located on the top of the support box, and a reduction gearbox is provided between the drive motor and the lead screw.

[0008] Furthermore, the present invention is improved in that the installation mechanism includes an installation block, which is installed on both ends of the support box, and the installation block is provided with installation holes.

[0009] Furthermore, an improvement of this utility model is that the working platform is provided with guardrails around its perimeter.

[0010] Furthermore, an improvement of this utility model is that a displacement sensor is provided at the bottom end of the reinforcing plate.

[0011] Furthermore, an improvement of this utility model is that the telescopic mechanism is an electric push rod.

[0012] Furthermore, an improvement of this utility model is that the multi-stage hydraulic telescopic device includes at least three hydraulic cylinders.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a maintenance device based on a dam inspection gate, which has the following beneficial effects:

[0015] This maintenance device based on dam inspection gates achieves precise lateral adjustment of the working platform by setting a sliding groove at the bottom of the support box and cooperating with the threaded transmission structure between the lead screw and the adjusting plate. At the same time, support grooves and support plates are added on both sides of the sliding groove, so that the adjusting plate is effectively supported during movement, avoiding the bending deformation or instability risks caused by traditional single-point force lead screws. The support plate bears part of the weight from the reinforcement plate and the working platform, effectively reducing the load pressure on the lead screw and extending its service life. The working platform can be quickly adjusted to a suitable position according to the specific location of the part to be repaired. It is suitable for inspection gate areas of different widths and complex structures, and has strong adaptability.

[0016] Using a multi-stage hydraulic telescopic device as the core power structure for vertical lifting, the working platform can achieve continuous lifting and adjustment within a certain height range, suitable for maintenance parts at different heights. By using a toothed block and toothed plate meshing and locking mechanism, when the working platform reaches the designated height, the telescopic mechanism pushes the toothed block and toothed plate to mesh, forming a mechanical self-locking structure to ensure that the platform is firmly fixed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0019] Figure 3 This is a front half-sectional view of the structure of this utility model;

[0020] Figure 4 This is a left half-sectional view of the structure of this utility model.

[0021] In the diagram: 1. Support box; 2. Working platform; 3. Lead screw; 4. Support plate; 5. Adjusting plate; 6. Reinforcing plate; 7. Multi-stage hydraulic telescopic device; 8. Gear plate; 9. Telescopic mechanism; 10. Gear block; 11. Drive motor; 12. Gearbox; 13. Mounting block; 14. Mounting hole; 15. Guardrail; 16. Displacement sensor. 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 Figures 1-4This utility model relates to a maintenance device for a dam inspection gate, comprising a support box 1 and a working platform 2. The support box 1 is equipped with an installation mechanism. A sliding groove is formed at the bottom of the support box 1, and a lead screw 3 is mounted on the sliding groove. A driving mechanism is provided between the support box 1 and the lead screw 3. Support grooves are formed on both sides of the sliding groove, and support plates 4 are mounted on the support grooves. An adjusting plate 5 is positioned between the two support plates 4, and a threaded hole is formed on the adjusting plate 5 through which the lead screw 3 passes. A reinforcement mechanism is provided at the bottom of the adjusting plate 5. The reinforcing plate 6 has an installation groove and a lifting groove at its bottom end. A multi-stage hydraulic telescopic device 7 is provided between the installation groove and the working platform 2. The top of the working platform 2 has a toothed plate 8 that extends into the lifting groove. A telescopic mechanism 9 is provided on one side of the reinforcing plate 6. A toothed block 10 is provided between the output end of the telescopic mechanism 9 and the lifting groove. In this embodiment, the structure can be installed and fixed on the top mounting position of the maintenance valve by the installation mechanism. Then, the screw 3 is rotated by the drive mechanism, and the screw 3 passes through... The adjusting plate 5 is further supported by the support plates 4 of the two support grooves through the threaded hole of the adjusting plate 5. This reduces the direct load on the reinforcing plate 6 and the working platform 2 by the screw 3. By distributing the load between the two support plates 4, the adjusting plate 5 can slide stably in the groove, thus allowing for flexible adjustment of the position of the working platform 2. When the height of the working platform 2 needs to be adjusted, the output end of the telescopic mechanism 9 is controlled to move the toothed block 10 away from the toothed plate 8, thereby stopping the toothed block 10 from engaging with the toothed plate 8. By controlling the multi-stage hydraulic telescopic device 7 to raise and lower the working platform 2, the height of the working platform 2 can be adjusted, facilitating the maintenance of components at different heights of the valve. After adjusting to the designated position, the output end of the telescopic mechanism 9 is controlled to move the toothed block 10 to engage with the toothed plate 8, thus firmly fixing the toothed plate 8 in position, thereby achieving a fixed height for the working platform 2. By flexibly adjusting the lateral position and height of the working platform 2, the position of the working platform 2 can be adjusted with high precision, facilitating the maintenance of components at different positions of the valve.

[0024] To facilitate high-precision rotation of the lead screw 3, in this solution, the drive mechanism includes a drive motor 11, which is located on the top of the support box 1. A reduction gearbox 12 is provided between the drive motor 11 and the lead screw 3. By rotating the output end of the drive motor 11, the reduction gearbox 12 can reduce the speed and increase the torque, enabling the lead screw 3 to rotate at a high torque angle.

[0025] To facilitate the installation and fixing of the support box 1, in this solution, the installation mechanism includes an installation block 13. The installation block 13 is installed on both ends of the support box 1. The installation block 13 is provided with installation holes 14. The installation holes 14 located on both ends of the support box 1 facilitate the use of installation parts, such as bolts, to fix the installation block 13 in the designated position.

[0026] To improve the safety of personnel during operation, in this solution, the work platform 2 is equipped with guardrails 15 around its perimeter, which can improve the safety of personnel during operation.

[0027] In order to control the lifting and moving accuracy of the work platform 2 with high precision, in this solution, a displacement sensor 16 is provided at the bottom end of the reinforcing plate 6. By setting the displacement sensor 16 at the bottom end of the reinforcing plate 6, it can directly contact the distance between the work platform 2 and the reinforcing plate 6, thereby facilitating the high-precision adjustment of the height of the work platform 2.

[0028] In order to improve the moving accuracy of the tooth block 10, in this solution, the telescopic mechanism 9 is an electric push rod. The electric push rod has the characteristics of high moving accuracy and good stability, so that the moving tooth block 10 can be reliably moved to mesh with the tooth plate 8.

[0029] To ensure a stable and reliable lifting and moving work platform 2, in this solution, the multi-stage hydraulic telescopic device 7 includes at least three hydraulic cylinders. By using at least three hydraulic cylinders, the work platform 2 can be lifted and moved efficiently.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A maintenance device based on a dam inspection gate, characterized in that, The system includes a support box (1) and a working platform (2). The support box (1) is equipped with an installation mechanism. A sliding groove is provided at the bottom of the support box (1). A lead screw (3) is provided on the sliding groove. A driving mechanism is provided between the support box (1) and the lead screw (3). Support grooves are provided on both sides of the sliding groove. Support plates (4) are provided on the support grooves. An adjustment plate (5) is provided between the two support plates (4). A threaded hole is provided on the adjustment plate (5). The lead screw (3) passes through the threaded hole. A reinforcing plate (6) is provided at the bottom of the adjustment plate (5). An installation groove and a lifting groove are provided at the bottom of the reinforcing plate (6). A multi-stage hydraulic telescopic device (7) is provided between the installation groove and the working platform (2). A toothed plate (8) is provided at the top of the working platform (2) and extends into the lifting groove. A telescopic mechanism (9) is provided on one side of the reinforcing plate (6). A toothed block (10) is provided between the output end of the telescopic mechanism (9) and the lifting groove.

2. The maintenance device based on a dam inspection gate according to claim 1, characterized in that, The drive mechanism includes a drive motor (11), which is located on the top of the support box (1), and a reduction gearbox (12) is provided between the drive motor (11) and the lead screw (3).

3. A maintenance device based on a dam inspection gate according to claim 1, characterized in that, The installation mechanism includes an installation block (13), which is installed on both ends of the support box (1), and the installation block (13) has an installation hole (14).

4. A maintenance device based on a dam inspection gate according to claim 1, characterized in that, The work platform (2) is surrounded by guardrails (15).

5. A maintenance device based on a dam inspection gate according to claim 1, characterized in that, The bottom end of the reinforcing plate (6) is provided with a displacement sensor (16).

6. A maintenance device based on a dam inspection gate according to claim 1, characterized in that, The telescopic mechanism (9) is an electric push rod.

7. A maintenance device based on a dam inspection gate according to claim 1, characterized in that, The multi-stage hydraulic telescopic device (7) includes at least three hydraulic cylinders.