Hydropower station equipment maintenance platform

Abstract

The utility model relates to the technical field of maintenance platforms, in particular to a hydropower station equipment maintenance platform which comprises a lifting unit, an extensible operating platform and a controller. The extendable workbench comprises a bottom plate, the bottom plate is installed at the upper end of the lifting unit, main fences are arranged on the first side and the second side, opposite to each other, of the bottom plate, an extension plate is slidably arranged on the third side of the bottom plate, a balancing weight is slidably arranged on the fourth side of the bottom plate, and a personnel triggering module and a distance measuring module are arranged on the extension plate. A two-way hydraulic cylinder is arranged between the extension plate and the balancing weight, the first output end of the two-way hydraulic cylinder is connected with the extension plate, the second output end of the two-way hydraulic cylinder is connected with the balancing weight, and the personnel triggering module, the distance measuring module and the two-way hydraulic cylinder are all electrically connected with the controller. The position of the extension plate can be adjusted according to the distance between the extension plate and a working face, so that the overhaul distance is adaptively adjusted; the balancing weight is adjusted while the maintenance distance is adjusted, so that the stability of the maintenance platform can be maintained, and the safety level is improved.

Description

Technical Field

[0001] This utility model relates to the field of maintenance platform technology, and more specifically, to a hydropower station equipment maintenance platform. Background Technology

[0002] A hydropower station powerhouse is a building in a hydropower station that houses turbines, generators, and various auxiliary equipment. It generally consists of two parts: the main powerhouse and the auxiliary powerhouse. It is a complex of hydraulic structures, mechanical and electrical equipment, and also the place where operators carry out production activities. At the top of the hydropower station powerhouse, there are usually multiple sets of lines that connect from the outside of the powerhouse to the inside. These lines at the top of the powerhouse need to be inspected regularly.

[0003] Currently, when performing maintenance at high locations in hydropower plants, maintenance personnel typically place ladders at an angle against the plant wall before proceeding with the necessary repairs. However, this method suffers from poor stability and low efficiency. Chinese utility model patent CN220449742U discloses a portable maintenance platform for high-altitude equipment in hydropower plants, specifically including a controllable lifting unit to adjust the platform height. While this improves maintenance efficiency, the platform often cannot reach high-altitude work surfaces, and the resulting construction distance makes normal maintenance difficult. Utility Model Content

[0004] The purpose of this utility model is to provide a hydropower station equipment maintenance platform to solve the technical problem that when facing a non-vertical working surface, the maintenance platform often cannot get close to the high working surface, and the construction distance makes it difficult to carry out maintenance normally.

[0005] This utility model is achieved through the following technical solution: a hydropower station equipment maintenance platform, including a lifting unit, an extendable work platform and a controller;

[0006] The extendable work platform includes a base plate, which is installed on the upper end of the lifting unit. The base plate has main rails on its first and second opposite sides. An extension plate is slidably mounted on the third side of the base plate, and a counterweight is slidably mounted on the fourth side of the base plate. The extension plate is equipped with a personnel triggering module and a distance measuring module. A bidirectional hydraulic cylinder is provided between the extension plate and the counterweight. The first output end of the bidirectional hydraulic cylinder is connected to the extension plate, and the second output end of the bidirectional hydraulic cylinder is connected to the counterweight. The personnel triggering module, the distance measuring module, and the bidirectional hydraulic cylinder are all electrically connected to the controller.

[0007] According to a preferred embodiment, the lifting unit is a scissor lift.

[0008] According to a preferred embodiment, the system also includes a ladder installed on a first or second side of the base plate.

[0009] According to a preferred embodiment, the lower end of the lifting unit and the ladder is provided with rollers.

[0010] According to a preferred embodiment, the personnel triggering module is a weighing sensor, which is disposed on the upper end surface of the extension plate.

[0011] According to a preferred embodiment, the ranging module is a laser rangefinder, which is positioned at the front end of the extension plate.

[0012] According to a preferred embodiment, a plurality of first slide rails are provided on the third side of the base plate along the length direction of the base plate. The plurality of first slide rails are arranged on the upper end surface of the base plate and spaced at a certain distance. The lower end surface of the extension plate is slidably engaged with the plurality of first slide rails.

[0013] According to a preferred embodiment, a plurality of second slide rails are provided on the fourth side of the base plate along the length of the base plate. The plurality of second slide rails are arranged on the upper surface of the base plate and spaced at a certain distance. The lower surface of the counterweight block is in sliding engagement with the plurality of second slide rails.

[0014] According to a preferred embodiment, a plurality of mounting brackets are provided between the extension plate and the counterweight along the width direction of the base plate, and the mounting brackets are provided with mounting holes along the length direction of the base plate, with the cylinder of the bidirectional hydraulic cylinder passing through the mounting holes.

[0015] According to a preferred embodiment, the upper end face of the mounting bracket is provided with a fixing plate, and the extension plate and the counterweight are provided with through holes at both ends of the fixing plate along the length direction.

[0016] The technical solution of the hydropower station equipment maintenance platform provided by this utility model has at least the following advantages and beneficial effects: (1) In actual application, the position of the extension plate can be adjusted according to the distance between the extension plate and the working surface, thereby adaptively adjusting the maintenance distance; (2) The counterweight can be adjusted at the same time as the maintenance distance is adjusted, thereby maintaining the stability of the maintenance platform and improving the safety level; (3) The extension plate and counterweight can be adjusted by personnel triggering, thereby realizing the automatic adjustment of the maintenance distance and counterweight. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a hydropower station equipment maintenance platform provided in Embodiment 1 of this utility model;

[0018] Figure 2 A front view of a hydropower station equipment maintenance platform provided in Embodiment 1 of this utility model;

[0019] Figure 3 Rear view of a hydropower station equipment maintenance platform provided in Embodiment 1 of this utility model;

[0020] Figure 4 A left view of a hydropower station equipment maintenance platform provided in Embodiment 1 of this utility model;

[0021] Figure 5 A top view of a hydropower station equipment maintenance platform provided in Embodiment 2 of this utility model;

[0022] Reference numerals: 100-Lifting unit, 200-Extendable work platform, 210-Base plate, 220-Main rail, 230-Extend plate, 240-Counterweight block, 241-Through hole, 250-First slide rail, 260-Second slide rail, 270-Fixing plate, 280-Secondary rail, 290-Two-way hydraulic cylinder, 300-Ladder, 400-Roller. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Example 1

[0025] Figure 1 This is a schematic diagram of the overall structure of a hydropower station equipment maintenance platform provided by this utility model; see also Figures 1 to 4 As shown, the hydropower station equipment maintenance platform includes a lifting unit 100, an extendable work platform 200, and a controller.

[0026] The extendable work platform 200 includes a base plate 210; the base plate 210 is installed on the upper end of the lifting unit 100. Preferably, the lifting unit 100 is a scissor lift, used to lift the extendable work platform 200 to different heights for maintenance work at different heights; in addition, the scissor lift can also provide sufficient support for subsequent maintenance personnel work and the counterweight 240, etc.

[0027] The base plate 210 has main railings 220 on its first and second opposing sides for safety protection. A ladder 300 is also installed on either the first or second side of the base plate 210, and an opening door is provided corresponding to the main railing 220 of the ladder 300, allowing maintenance personnel to access the extendable work platform 200 via the ladder 300. Furthermore, the lower ends of the lifting unit 100 and the ladder 300 are equipped with casters 400, which facilitates the movement of the maintenance platform and improves its convenience.

[0028] An extension plate 230 is slidably disposed on the third side of the base plate 210, and a secondary railing 280 is provided on the extension plate 230; a counterweight 240 is slidably disposed on the fourth side of the base plate 210, and a secondary railing 280 is also provided on the counterweight 240. The secondary railing 280 can achieve safety protection on the third and fourth sides; a bidirectional hydraulic cylinder 290 is provided between the extension plate 230 and the counterweight 240. The first output end of the bidirectional hydraulic cylinder 290 is connected to the extension plate 230, and the second output end of the bidirectional hydraulic cylinder 290 is connected to the counterweight 240.

[0029] It should be noted that, through the aforementioned bidirectional hydraulic cylinder 290, the counterweight 240 can be adjusted simultaneously with the adjustment of the extension plate 230, thereby maintaining the stability of the maintenance platform and improving the safety level.

[0030] Furthermore, in this embodiment, the extension plate 230 and the counterweight 240 are triggered by personnel. In this embodiment, the extension plate 230 is provided with a personnel triggering module and a ranging module. The personnel triggering module is a weighing sensor, which is arranged on the upper end surface of the extension plate 230. The ranging module is a laser rangefinder, which is arranged at the front end of the extension plate 230. The personnel triggering module, the ranging module, and the bidirectional hydraulic cylinder 290 are all electrically connected to the controller.

[0031] It should be noted that, through the above settings, the position of the extension plate 230 can be adjusted according to the distance between the extension plate 230 and the working surface during actual application, thereby adaptively adjusting the maintenance distance; the extension plate 230 and the counterweight 240 can be adjusted by personnel triggering, thereby realizing automatic adjustment of the maintenance distance and the counterweight.

[0032] The working principle of this maintenance platform is briefly explained below:

[0033] After maintenance personnel enter the extendable work platform 200 via ladder 300 and the opening / closing door and stand on the extension plate 230, the load cell detects weight information and sends a trigger signal to the controller. Upon receiving the trigger signal, the controller sends a first opening signal to the laser rangefinder. Upon receiving the first opening signal, the laser rangefinder starts and measures the distance between the front end of the extension plate 230 and the work surface, sending this distance information to the controller. Upon receiving the distance information, the controller sends a second opening signal to the bidirectional hydraulic cylinder 290. Upon receiving the second opening signal... After the start-up signal, the first output terminal drives the extension plate 230 to move toward the working surface, and the second output terminal drives the counterweight block 240 to move in the opposite direction to the extension plate 230. When the extension plate 230 moves the distance corresponding to the information, the bidirectional hydraulic cylinder 290 stops. At this time, the maintenance personnel stand on the extension plate 230 to carry out maintenance work. At the same time, the counterweight block 240 can maintain the overall balance of the maintenance platform. When the maintenance personnel exit the extension plate 230, if the weighing module does not detect the weight information, it will trigger the controller to control the extension plate 230 and the counterweight block 240 to reset.

[0034] Example 2

[0035] This embodiment, based on the technical solution provided in Embodiment 1, further explains the structure of the extendable workbench 200:

[0036] In this embodiment, a plurality of first slide rails 250 are provided on the third side of the base plate 210 along its length. The plurality of first slide rails 250 are arranged on the upper surface of the base plate 210 and spaced at a certain distance. The lower surface of the extension plate 230 is slidably engaged with the plurality of first slide rails 250. A plurality of second slide rails 260 are provided on the fourth side of the base plate 210 along its length. The plurality of second slide rails 260 are arranged on the upper surface of the base plate 210 and spaced at a certain distance. The lower surface of the counterweight block 240 is slidably engaged with the plurality of second slide rails 260.

[0037] Multiple mounting brackets are provided between the extension plate 230 and the counterweight 240 along the width direction of the base plate 210. The mounting brackets are provided with mounting holes along the length direction of the base plate 210, and the cylinder of the bidirectional hydraulic cylinder 290 passes through the mounting holes.

[0038] See Figure 5As shown, the upper end face of the mounting bracket is provided with a fixing plate 270. The extension plate 230 and the counterweight 240 are provided with through holes 241 at both ends of the fixing plate 270 in the length direction. When the extension plate 230 and the counterweight 240 are adjusted, the two ends of the fixing plate 270 can pass through or out of the through holes 241 to accommodate the adjustment of the extension plate 230 and the counterweight 240, and provide a standing area for maintenance personnel, preventing maintenance personnel from contacting the bidirectional hydraulic cylinder 290 below the fixing plate 270, thus improving the safety level.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydropower station equipment maintenance platform, characterized in that, Includes a lifting unit (100), an extendable work platform (200), and a controller; The extendable work platform (200) includes a base plate (210) which is installed on the upper end of the lifting unit (100). The base plate (210) has main rails (220) on its first and second opposite sides. An extension plate (230) is slidably arranged on the third side of the base plate (210). A counterweight (240) is slidably arranged on the fourth side of the base plate (210). A personnel triggering module and a distance measuring module are provided on the extension plate (230). A bidirectional hydraulic cylinder (290) is provided between the extension plate (230) and the counterweight (240). The first output end of the bidirectional hydraulic cylinder (290) is connected to the extension plate (230), and the second output end of the bidirectional hydraulic cylinder (290) is connected to the counterweight (240). The personnel triggering module, the distance measuring module, and the bidirectional hydraulic cylinder (290) are all electrically connected to the controller.

2. The hydropower station equipment maintenance platform as described in claim 1, characterized in that, The lifting unit (100) is a scissor lift.

3. The hydropower station equipment maintenance platform as described in claim 1, characterized in that, It also includes a ladder (300) installed on the first or second side of the base plate (210).

4. The hydropower station equipment maintenance platform as described in claim 3, characterized in that, The lower ends of the lifting unit (100) and the ladder (300) are provided with rollers (400).

5. The hydropower station equipment maintenance platform as described in claim 1, characterized in that, The personnel triggering module is a weighing sensor, which is installed on the upper surface of the extension plate (230).

6. The hydropower station equipment maintenance platform as described in claim 1, characterized in that, The ranging module is a laser rangefinder, which is installed at the front end of the extension plate (230).

7. The hydropower station equipment maintenance platform as described in any one of claims 1 to 6, characterized in that, The third side of the base plate (210) is provided with a plurality of first slide rails (250) along the length direction of the base plate (210). The plurality of first slide rails (250) are arranged on the upper surface of the base plate (210) and spaced at a certain distance. The lower surface of the extension plate (230) is in sliding cooperation with the plurality of first slide rails (250).

8. The hydropower station equipment maintenance platform as described in claim 7, characterized in that, The fourth side of the base plate (210) is provided with a plurality of second slide rails (260) along the length direction of the base plate (210). The plurality of second slide rails (260) are arranged on the upper surface of the base plate (210) and spaced at a certain distance. The lower surface of the counterweight (240) is in sliding cooperation with the plurality of second slide rails (260).

9. The hydropower station equipment maintenance platform as described in claim 8, characterized in that, Multiple mounting brackets are provided between the extension plate (230) and the counterweight (240) along the width direction of the base plate (210). The mounting brackets are provided with mounting holes along the length direction of the base plate (210), and the cylinder of the bidirectional hydraulic cylinder (290) passes through the mounting holes.

10. The hydropower station equipment maintenance platform as described in claim 9, characterized in that, The upper end face of the mounting bracket is provided with a fixing plate (270), and the extension plate (230) and the counterweight (240) are provided with through holes (241) at both ends of the fixing plate (270) in the length direction.

Images