A fan tower platform automatic cover opening and closing warning device
By installing lifting warning lights and cover warning lights at the four corners of the wind turbine tower platform window, combined with sensors and controllers, safety warnings are implemented during the opening and closing of the platform cover, improving the safety of personnel and equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 国电投南通新能源有限公司
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-23
AI Technical Summary
The safety of personnel and equipment is difficult to guarantee during the opening and closing of the wind turbine tower platform cover, and there are risks such as personnel falling, bumping, impacting and being pinched.
Liftable warning lights and cover warning lights are installed at the four corners of the platform window. Combined with position sensors and controllers above and below the platform, the top and side LED modules are driven by electric push rods to provide warning light and sound prompts, reminding personnel to stay away from the area where the platform cover is in operation.
Warning lights and sound effects enhance the safety of personnel and equipment and prevent potential dangers during the opening and closing of the platform cover.
Smart Images
Figure CN224396617U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wind turbine tower equipment, and in particular relates to an automatic cover opening and closing warning device for wind turbine tower platforms. Background Technology
[0002] The internal tower platform of a wind turbine serves as a support platform for personnel to stand and inspect inside. Multiple tower platforms are typically installed vertically within the wind turbine tower. Each tower platform requires a platform window for longitudinal personnel passage, and a ladder is installed within each window. The ladder is fixed to the inner wall of the tower using supports. The ladder serves as an auxiliary passage for personnel to ascend and descend. To reduce the burden on personnel, existing wind turbine equipment typically includes a non-climbing device. Personnel use this device to move along the ladder and through the platform window. The wind turbine tower platform cover is installed on the platform inside the wind turbine tower. It opens when personnel are passing through and closes when no personnel are passing through. When the platform cover is closed, it seals the platform window, improving the safety of personnel on the tower platform.
[0003] As mentioned earlier, the tower platform serves as a support platform for personnel. In scenarios where personnel walk on the tower platform and those riding the ladder need to pass through the platform window via a ladder, safety issues arise because the personnel moving on the tower platform and those moving on the ladder are unaware of each other. Specifically, if personnel are standing on the platform cover when it is open, it not only easily leads to the risk of personnel falling and bumping into each other, but also easily damages the platform cover and its opening and closing drive mechanism. When the platform cover is closed, if personnel are within the range of the platform cover's movement, there is a risk of personnel collision and physical injury.
[0004] In summary, there is a need to develop and design a device that provides a warning when the platform cover is opened or closed, thereby improving the safety of personnel and equipment. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic cover opening and closing warning device for wind turbine tower platforms, which generates necessary safety warnings during the opening and closing of the platform cover, prompting personnel to stay away from the operating area of the platform cover, thereby improving the safety of personnel and equipment.
[0006] The technical solution adopted by this utility model is as follows: an automatic cover opening and closing warning device for a wind turbine tower platform, including lifting warning lights set at the four corners of the platform window and multiple cover warning lights installed on the inner surface of the platform cover, as well as a controller and a position sensor above and below the platform. Each lifting warning light, each cover warning light, and the position sensor above and below the platform are connected to the controller. The lifting warning light includes an outer cylinder and an inner cylinder located inside it. A top cover with a top window in the middle is installed on the top of the inner cylinder and a top LED module is installed in the top window. A side window is provided on the side of the inner cylinder and a side LED module is installed in the side window. An electric push rod for driving the top cover to lift is installed inside the outer cylinder.
[0007] Preferably, both the outer and inner cylinders of the lifting warning light are rectangular aluminum alloy cylinders, the outer cross-sectional profile of the inner cylinder is the same as the inner cross-sectional profile of the outer cylinder, and the top cover is fixedly connected to the top port of the inner cylinder by multiple countersunk screws.
[0008] Preferably, the side windows and side LED modules are provided in two sets and located on two adjacent side walls of the inner cylinder.
[0009] Preferably, the top LED module is a green light module, which illuminates when the lifting warning light is in the lowered state to indicate the location of the platform cover, and turns off when the lifting warning light is in the raised warning state; the side LED module is a red light module, which illuminates when the lifting warning light is in the raised warning state to indicate the danger zone, and turns off when the lifting warning light is in the lowered state.
[0010] Preferably, a bottom cover plate with a wire hole in the middle is installed and fixed at the bottom of the outer cylinder, and the wire harness passes through the wire hole; an adapter base is installed on the bottom cover plate, and an adapter base is installed at the bottom of the top cover plate; the lower end of the electric actuator is hinged to the lower adapter base, and the upper end is hinged to the upper adapter base.
[0011] Preferably, an annular mounting plate is provided on the outer side of the top opening of the outer cylinder, and a stepped mounting hole is provided on the tower platform. The lifting warning light is placed in the stepped mounting hole, and the mounting plate is fixedly connected to the tower platform with countersunk screws. When the inner cylinder is in a fully lowered state, the surface of the top cover plate is flush with the surface of the tower platform.
[0012] Preferably, a speaker is installed inside the inner cylinder of one of the lifting warning lights and a sound hole is provided on the corresponding side wall. When the lifting warning light is in the raised warning state, the speaker plays a warning sound.
[0013] Preferably, both the position sensor above the platform and the position sensor below the platform are proximity switches. The non-climbing device that moves up and down along the ladder inside the platform window generates a detection signal when it passes the position sensor above the platform and the position sensor below the platform.
[0014] The advantages and positive effects of this utility model are:
[0015] This utility model provides an automatic cover opening and closing warning device for wind turbine tower platforms. Lifting warning lights are installed at the four corners of the platform window. When the platform cover is about to open, about to close, or is in the open state, the lifting warning lights rise and emit a warning light effect, prompting personnel on the tower platform to stay away from the platform window to avoid danger. During this process, the cover warning light on the platform cover also emits a warning light effect, further enhancing the safety warning effect. When the platform cover is in the closed state, the lifting warning lights descend and emit indicator lights at the four corners of the platform cover, outlining the platform window and platform cover, reminding personnel on the tower platform of their location, and encouraging them to avoid stepping on them. Therefore, this opening and closing warning device provides necessary safety warnings during the opening and closing of the platform cover, prompting personnel to stay away from the area covered by the platform cover, improving the safety of personnel and equipment. Attached Figure Description
[0016] Figure 1 This is a top view of the structure of this utility model;
[0017] Figure 2 yes Figure 1 A schematic diagram of the external three-dimensional structure of a medium-rise type warning light, viewed from above;
[0018] Figure 3 yes Figure 2 A three-dimensional structural diagram of a medium-rise warning light, with the top cover removed, showing the upper view;
[0019] Figure 4 yes Figure 2 A structural schematic diagram of the inner cylinder and its auxiliary components, viewed from above.
[0020] In the picture:
[0021] 1. Tower platform; 2. Hinge; 3. Platform cover plate; 4. Lifting warning light; 4-1. Outer cylinder; 4-2. Bottom cover plate; 4-3. Mounting plate; 4-4. Inner cylinder; 4-5. Top LED module; 4-6. Top cover plate; 4-7. Electric actuator; 4-8. Adapter base; 4-9. Side LED module; 5. Cover warning light; 6. Controller; 7. Position sensor above the platform; 8. Position sensor below the platform; 9. Ladder. Detailed Implementation
[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.
[0023] like Figure 1 As shown, a platform window is provided on the tower platform 1, and a ladder 9 is installed inside the platform window for personnel to climb independently or for lifting without a climbing device. In order to reduce the burden on personnel, a climbing device is usually provided on the ladder 9. The edge of the platform cover plate 3 is hinged to the edge of the platform window by a hinge 2, and the platform cover plate 3 is opened and closed by an opening and closing control device.
[0024] Please see Figure 1 This utility model discloses an automatic cover opening and closing warning device for a wind turbine tower platform. It includes lifting warning lights 4 positioned at the four corners of the platform window and multiple cover warning lights 5 installed on the inner surface of the platform cover 3, as shown in the figure. There are two cover warning lights 5, installed on the inner surface of the platform cover 3 away from the hinge 2, one on each side. It also includes a controller 6, a position sensor 7 above the platform, and a position sensor 8 below the platform. Each lifting warning light 4, each cover warning light 5, and each position sensor 8 are connected to the controller 6.
[0025] The position sensor 7 above the platform and the position sensor 8 below the platform are typically installed on the ladder 9. As the climb-free device moves up and down along the ladder 9, these sensors detect it and send signals to the controller 6. The controller 6 then controls the various lifting warning lights 4 and the warning lights 5 on the covers to change to their corresponding states. The detection signals generated by the position sensors 7 above and 8 below can also be sent to the opening and closing control device of the platform cover 3. The opening and closing control device determines the passage status of the climb-free device based on the detection signals and controls the platform cover 3 to open or close accordingly.
[0026] In this embodiment, both the position sensor 7 above the platform and the position sensor 8 below the platform are proximity switches. When the climber moves up and down along the ladder 9 inside the platform window, it generates a detection signal when it passes the position sensor 7 above the platform and the position sensor 8 below the platform. The detection signal is sent to the controller 6, and the controller 6 controls the generation of an alarm effect.
[0027] Please see Figure 2 , Figure 3 and Figure 4 It can be seen that:
[0028] The lifting warning light 4 includes an outer cylinder 4-1 and an inner cylinder 4-4 located inside it. A top cover plate 4-6 with a top window in the middle is installed on the top of the inner cylinder 4-4, and a top LED module 4-5 is installed in the top window. A side window is provided on the side of the inner cylinder 4-4, and a side LED module 4-9 is installed in the side window. An electric push rod 4-7 is installed inside the outer cylinder 4-1 to drive the top cover plate 4-6 to lift. By controlling the piston rod of the electric push rod 4-7 to extend and retract, the top cover plate 4-6 and its top LED module 4-5 can be controlled to rise or fall. When raised, each lifting warning light 4 forms a noticeable base at the four corners of the platform window and the platform cover plate. At the same time, the side LED module 4-9 will be exposed when the inner cylinder 4-4 is raised.
[0029] In this embodiment, both the outer cylinder 4-1 and the inner cylinder 4-4 of the lifting warning light 4 are rectangular aluminum alloy cylinders. The outer cross-sectional profile of the inner cylinder 4-4 is the same as the inner cross-sectional profile of the outer cylinder 4-1. Therefore, under the driving action of the electric push rod 4-7, the inner cylinder 4-4 can move up and down inside the outer cylinder 4-1. The top cover plate 4-6 is fixedly connected to the top port of the inner cylinder 4-4 by multiple countersunk screws.
[0030] In this embodiment, two sets of side windows and side LED modules 4-9 are provided and located on two adjacent side walls of the inner cylinder 4-4. The purpose of this is: Figure 1 and Figure 4 As shown, after the lifting warning light 4 is installed, the warning light effect generated by the side LED module 4-9 is projected along the side length of the platform window and platform cover plate 3, so that the warning effect generated by the four lifting warning lights 4 surrounds the platform window and platform cover plate 3.
[0031] In this embodiment, the top LED modules 4-5 are green light modules, which illuminate when the lifting warning light 4 is in the lowered state, indicating the location of the platform cover 3 (i.e., creating a contour effect), and turn off when the lifting warning light 4 is in the raised warning state. The side LED modules 4-9 are red light modules, which illuminate when the lifting warning light 4 is in the raised warning state, indicating the danger zone, and turn off when the lifting warning light 4 is in the lowered state. The cover warning light 5 has a red light module, which illuminates in the warning state and turns off in the non-warning state.
[0032] In this embodiment, a bottom cover plate 4-2 with a wire hole in the middle is installed and fixed at the bottom of the outer cylinder 4-1, and the wire harness passes through the wire hole; an adapter base 4-8 is installed on the bottom cover plate 4-2, and an adapter base 4-8 is installed at the bottom of the top cover plate 4-6; the lower end of the electric actuator 4-7 is hinged to the lower adapter base 4-8, and the upper end is hinged to the upper adapter base 4-8.
[0033] In this embodiment, an annular mounting plate 4-3 is provided on the outer side of the top opening of the outer cylinder 4-1, and a stepped mounting hole is provided on the tower platform 1. The lifting warning light 4 is placed in the stepped mounting hole, and the mounting plate 4-3 is fixedly connected to the tower platform 1 with countersunk screws. When the inner cylinder 4-4 is in the fully lowered state, the surface of the top cover plate 4-6 is flush with the surface of the tower platform 1. In this way, when it is not in the warning state, that is, when it is in the outreach state, the lifting warning light 4 will not affect the surface flatness of the tower platform 1.
[0034] To further enhance the warning effect, a speaker is installed inside the internal cylinder 4-1 of one of the lifting warning lights 4, and sound holes are provided on the corresponding side wall. When the lifting warning light 4 is in the raised warning state, the speaker plays a warning sound. The electric push rod 4-7, top LED module 4-5, side LED module 4-9, and speaker of the lifting warning light 4 are all connected to the controller 6 through a wiring harness. When in the warning state, the side LED module 4-9 generates a red warning light, and the speaker plays a warning sound, which can be a buzzer sound or a pre-recorded warning audio.
[0035] The principle behind the opening and closing safety warning is:
[0036] Initially, the platform cover 3 is in the closed state, and each of the lifting warning lights 4 is in the lowered state. The four lifting warning lights 4 produce a lighting effect to indicate the location of the platform window and the platform cover 3. In other words, at this time, the four lifting warning lights 4 provide a contour effect to the platform cover 3, that is, indicate the location of the platform window and the platform cover 3, and remind the personnel on the tower platform to avoid stepping on it.
[0037] When personnel move up the ladder 9 using the climbing device, a detection signal is generated when the climbing device passes the position sensor 8 below the platform (at this time, there is still a certain distance between the climbing device and the platform window). The controller 6 and the opening and closing control device receive the signal. At this time, the controller 6 controls each lifting warning light 4 to change to the raised state and simultaneously changes to the warning light effect and plays the warning sound effect. At the same time, each cover warning light 5 generates a warning light effect to remind nearby personnel to stay away from the movement range of the platform cover 3 to avoid danger. Afterwards, the opening and closing control device controls the platform cover 3 to gradually open.
[0038] The climber then continues to ascend along the ladder 9 and passes through the platform window. When it reaches the position sensor 7 above the platform, it generates a detection signal (at this time, the climber has moved away from the platform window). The controller 6 and the opening and closing control device receive the signal. The opening and closing control device controls the platform cover 3 to gradually close. Then, the controller 6 controls each lifting warning light 4 to change to a descending state and switch to a marker light effect. At the same time, each cover warning light 5 turns off.
Claims
1. An automatic cover opening and closing warning device for a wind turbine tower platform, characterized in that: The system includes lifting warning lights (4) located at the four corners of the platform window and multiple cover warning lights (5) installed on the inner surface of the platform cover plate (3). It also includes a controller (6), a platform top position sensor (7), and a platform bottom position sensor (8). Each lifting warning light (4), each cover warning light (5), platform top position sensor (7), and platform bottom position sensor (8) are connected to the controller (6). The lifting warning light (4) includes an outer cylinder (4-1) and an inner cylinder (4-4) located inside it. A top cover plate (4-6) with a top window in the middle is installed on the top of the inner cylinder (4-4), and a top LED module (4-5) is installed in the top window. A side window is provided on the side of the inner cylinder (4-4), and a side LED module (4-9) is installed in the side window. An electric push rod (4-7) is installed inside the outer cylinder (4-1) to drive the top cover plate (4-6) to lift.
2. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 1, characterized in that: The outer cylinder (4-1) and inner cylinder (4-4) of the lifting warning light (4) are both rectangular aluminum alloy cylinders. The outer cross-sectional profile of the inner cylinder (4-4) is the same as the inner cross-sectional profile of the outer cylinder (4-1). The top cover plate (4-6) is fixedly connected to the top port of the inner cylinder (4-4) by multiple countersunk screws.
3. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 2, characterized in that: The side windows and side LED modules (4-9) are provided in two sets and are located on two adjacent side walls of the inner cylinder (4-4).
4. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 3, characterized in that: The top LED module (4-5) is a green light module, which lights up when the lifting warning light (4) is in the lowering state to indicate the location of the platform cover (3), and turns off when the lifting warning light (4) is in the raised warning state; the side LED module (4-9) is a red light module, which lights up when the lifting warning light (4) is in the raised warning state to indicate the danger zone, and turns off when the lifting warning light (4) is in the lowering state.
5. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 4, characterized in that: A bottom cover plate (4-2) with a wire hole in the middle is installed and fixed at the bottom of the outer cylinder (4-1), and the wire harness passes through the wire hole; an adapter base (4-8) is installed on the bottom cover plate (4-2), and an adapter base (4-8) is installed at the bottom of the top cover plate (4-6). The lower end of the electric actuator (4-7) is hinged to the lower adapter base (4-8), and the upper end is hinged to the upper adapter base (4-8).
6. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 5, characterized in that: An annular mounting plate (4-3) is provided on the outer side of the top opening of the outer cylinder (4-1). A stepped mounting hole is provided on the tower platform (1). The lifting warning light (4) is placed in the stepped mounting hole and the mounting plate (4-3) is fixedly connected to the tower platform (1) with countersunk screws. When the inner cylinder (4-4) is in a fully lowered state, the surface of the top cover plate (4-6) is flush with the surface of the tower platform (1).
7. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 6, characterized in that: in One of the lifting warning lights (4) has a speaker installed inside its internal cylinder (4-4) and a sound hole on the corresponding side wall. When the lifting warning light (4) is in the raised warning state, the speaker plays a warning sound.
8. The automatic cover opening and closing warning device for wind turbine tower platform as described in claim 7, characterized in that: The position sensor (7) above the platform and the position sensor (8) below the platform are both proximity switches. The climber that moves up and down along the ladder (9) inside the platform window generates a detection signal when it passes the position sensor (7) above the platform and the position sensor (8) below the platform.