Load-bearing door type semi-automatic anti-falling cover plate
By designing a semi-automatic anti-fall cover for load-bearing doors, and using the anti-fall mechanism and protective cover to achieve automatic reset and shading functions, the problem of lack of anti-fall measures in the cabin of the wind turbine unit is solved, and safety and practicality are improved.
Patent Information
- Application Number
- CN202421609045.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-09
AI Technical Summary
During the construction or maintenance of the wind turbine cabin, there is a lack of anti-fall measures, which causes objects to fall through the hanging holes, endangering the safety of the operators.
A load-bearing door-type semi-automatic anti-fall cover plate is designed, including the cabin floor, the lifting platform floor and the lifting chain. The automatic reset and shading function is achieved through the anti-fall mechanism and protective cover plate to prevent objects from falling and people from falling.
It effectively prevents objects from falling through the lifting hole, improves the safety of workers, and reduces the labor and transformation costs of workers when lifting objects, and improves the practicality of the device.
Smart Images
Figure CN222757809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fans, in particular to a load-bearing door type semi-automatic anti-falling cover plate. Background Art
[0002] The wind power source is composed of a wind turbine generator set, a tower supporting the generator set, a battery charge controller, an inverter, a load unloader, a grid connection controller, a battery pack, etc. The wind turbine generator set includes a wind rotor and a generator. The wind rotor contains blades, a hub, reinforcements, etc. It has the functions of generating electricity by the blades rotating under wind force and rotating the generator head.
[0003] In the process of implementing this application, it was found that the technology has the following problems: during the construction or maintenance process in the cabin of a wind turbine, due to the particularity and diversity of the equipment carried, the required equipment cannot be delivered to the cabin manually, and equipment or tools of different sizes are often lifted into the cabin through a cabin hoist. There is no fall prevention measure for the lifting holes during use. In order to prevent objects from falling through the lifting holes during the lifting work, the operators step on empty air.
[0004] For this reason, a load-bearing door type semi-automatic anti-falling cover plate is proposed. Utility Model Content
[0005] The purpose of the utility model is to solve the problem that there is no anti-falling measure for the hanging hole during use, and to prevent the object from falling through the hanging hole during the lifting work and the operator from stepping on empty space. The utility model provides a load-bearing door type semi-automatic anti-falling cover.
[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:
[0007] A load-bearing door-type semi-automatic anti-fall cover plate comprises a cabin bottom plate, a lifting platform bottom plate and a lifting chain, the upper surfaces of the cabin bottom plate and the lifting platform bottom plate are provided with grooves, an anti-fall mechanism 2 is arranged inside the groove of the cabin bottom plate, an anti-fall mechanism 1 is arranged inside the groove of the lifting platform bottom plate to prevent staff at the upper end of the cabin bottom plate from falling out of a fan unit, and a warning mechanism is arranged on the inner wall of the anti-fall mechanism 1.
[0008] Furthermore, the anti-fall mechanism comprises two groups of hinges and two groups of fixed blocks. The upper surface of the cabin bottom plate is hinged with anti-fall plates through the two groups of hinges. The two groups of anti-fall plates are rotatably connected to the grooves of the hoisting platform bottom plate. The adjacent sides of the two groups of anti-fall plates are in contact with each other. The adjacent sides of the two groups of anti-fall plates are provided with positioning grooves. The two groups of fixed blocks are installed on the upper surface of the hoisting platform bottom plate. The adjacent sides of the two groups of fixed blocks are provided with through holes. Spring telescopic rods are arranged inside the through holes of the two groups of fixed blocks. The adjacent ends of the two groups of spring telescopic rods are respectively arranged on the moving paths of the two groups of anti-fall plates.
[0009] Furthermore, the anti-fall mechanism 2 includes a plurality of hinges 2, and the upper surface of the cabin bottom plate is hinged with two groups of protective cover plates through a plurality of hinges 2, and the positions of the two groups of protective cover plates are located inside the grooves of the cabin bottom plate, and the adjacent sides of the two groups of protective cover plates are fitted together, and the adjacent sides of the two groups of protective cover plates are provided with arc-shaped grooves, and the position of the lifting chain is arranged inside the arc-shaped grooves of the two groups of protective cover plates.
[0010] Furthermore, the warning mechanism includes two groups of contact switches and alarms, the alarm is installed on the lower surface of the cabin floor, the two groups of contact switches are respectively installed on the inner walls of the two groups of anti-fall plate positioning grooves, and the two groups of contact switches are respectively arranged on the left and right sides of the lifting chain.
[0011] Furthermore, the upper surfaces of the two groups of protective cover plates are provided with U-shaped grooves, and LED warning lights are arranged inside the two groups of U-shaped grooves. The positions of the upper surfaces of the two groups of LED warning lights are respectively kept parallel to the positions of the upper surfaces of the two groups of protective cover plates.
[0012] The beneficial effects of the utility model are as follows:
[0013] 1. The utility model arranges the adjacent ends of the two sets of spring telescopic rods on the moving paths of the two sets of anti-fall plates, so that when the two sets of anti-fall plates are subsequently rotated out of the grooves of the bottom plate of the lifting platform, the upper surfaces of the two sets of anti-fall plates are respectively abutted against the adjacent sides of the two sets of spring telescopic rods. When the subsequent staff releases the two sets of anti-fall plates by hand, the elastic potential energy of the two sets of spring telescopic rods themselves pushes the two sets of anti-fall plates to reset and move to the inside of the grooves of the bottom plate of the lifting platform, thereby avoiding as much as possible that the subsequent staff forgets to reset the position of the two sets of anti-fall plates after rotating the two sets of anti-fall plates to move the hooks to the outer end of the fan unit to lift objects, resulting in the anti-fall mechanism being unable to cover and block the internal groove of the bottom plate of the lifting platform, thereby improving the safety of the staff when working inside the fan unit.
[0014] 2. The utility model enables two groups of protective cover plates and two groups of anti-fall plates to rotate upward out of the grooves of the cabin bottom plate and the lifting platform bottom plate, so that when the subsequent lifting chain and the hook pull the hoisted object to rise, the hoisted object pushes the two groups of protective cover plates and the two groups of anti-fall plates to rotate upward, so that when the subsequent hook drives the hoisted object into the interior of the wind turbine unit, there is no need to rotate and adjust the positions of the two groups of anti-fall plates and the two groups of protective cover plates, thereby reducing the labor consumed by subsequent staff when using the device to hoist objects; through the device, in the process of protecting the staff, it is not necessary to significantly change the existing structure according to the internal structure of the wind turbine unit, so that the device can be quickly applied to the existing platform structure during use, thereby reducing the subsequent modification cost of the wind turbine unit, and making the device suitable for large-scale promotion, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front structural schematic diagram of the utility model;
[0016] Figure 2 It is a side structural schematic diagram of the utility model;
[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0018] Figure numerals: 1. Cabin bottom plate; 2. Lifting platform bottom plate; 3. Anti-fall mechanism 1; 301. Anti-fall plate; 302. Hinge 1; 303. Fixed block; 304. Spring telescopic rod; 4. Lifting chain; 5. Hook; 6. Anti-fall mechanism 2; 601. Hinge 2; 602. Protective cover; 7. LED warning light; 8. Warning mechanism; 801. Alarm; 802. Contact switch. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0023] like Figures 1 to 3 As shown, a load-bearing door-type semi-automatic anti-fall cover plate includes a cabin bottom plate 1, a hoisting platform bottom plate 2 and a lifting chain 4. The upper surfaces of the cabin bottom plate 1 and the hoisting platform bottom plate 2 are provided with grooves. An anti-fall mechanism 6 is arranged inside the groove of the cabin bottom plate 1. An anti-fall mechanism 3 is arranged inside the groove of the hoisting platform bottom plate 2 to prevent the staff at the upper end of the cabin bottom plate 1 from falling out of the fan unit. The inner wall of the anti-fall mechanism 3 is provided with a warning mechanism 8. Specifically, the anti-fall mechanism 3 is driven to automatically reset to the hoisting platform through its own elastic potential energy. The inside of the groove of the bottom plate 2 enables the anti-fall mechanism 3 to automatically block the inside of the groove of the lifting platform bottom plate 2, thereby preventing subsequent staff from forgetting to reset the position of the anti-fall mechanism 3 after the anti-fall mechanism 3 moves the hook 5 to the outer end of the wind turbine unit to lift objects, resulting in the anti-fall mechanism 3 being unable to cover and block the internal groove of the lifting platform bottom plate 2, thereby preventing subsequent staff from falling out of the wind turbine unit from the inside of the grooves of the cabin bottom plate 1 and the lifting platform bottom plate 2, thereby improving the safety of the anti-fall mechanism 3 during use.
[0024] like Figures 1 to 3 As shown, the anti-fall mechanism 3 includes two sets of pages 302 and two sets of fixed blocks 303. The upper surface of the cabin bottom plate 1 is hinged with an anti-fall plate 301 through the two sets of pages 302. The two sets of anti-fall plates 301 are rotatably connected to the inside of the groove of the hoisting platform bottom plate 2. The adjacent sides of the two sets of anti-fall plates 301 are in contact with each other. The adjacent sides of the two sets of anti-fall plates 301 are both provided with positioning grooves. The two sets of fixed blocks 303 are both installed on the upper surface of the hoisting platform bottom plate 2. The adjacent sides of the two sets of fixed blocks 303 are both provided with through holes. The through holes of the two sets of fixed blocks 303 are both provided with spring telescopic rods 304. The adjacent ends of the two sets of spring telescopic rods 304 are respectively arranged on the moving paths of the two sets of anti-fall plates 301.
[0025] When the lifting device 301 is in the working state, the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state, and the lifting device 301 is in the working state, so that the lifting device 301 is in the working state,
[0026] like Figure 1 As shown, the anti-fall mechanism 26 includes a multi-combination page 2601, and two groups of protective cover plates 602 are hinged on the upper surface of the cabin bottom plate 1 through the multi-combination page 2601. The positions of the two groups of protective cover plates 602 are located inside the groove of the cabin bottom plate 1, and the adjacent sides of the two groups of protective cover plates 602 are in contact with each other. The adjacent sides of the two groups of protective cover plates 602 are both provided with arc grooves, and the position of the lifting chain 4 is set inside the arc grooves of the two groups of protective cover plates 602; specifically, when the adjacent sides of the two subsequent groups of anti-fall plates 301 are in contact with each other, the adjacent sides of the two groups of protective cover plates 602 are in contact with each other by rotating the two groups of protective cover plates 602, so that the two groups of protective cover plates 602 block the inside of the groove of the cabin bottom plate 1, thereby minimizing the possibility that subsequent staff members step on the inside of the groove of the cabin bottom plate 1 while walking on the upper end of the cabin bottom plate 1, causing the staff members to fall to the upper surface of the lifting platform bottom plate 2, thereby improving the safety of the staff members when using the lifting chain 4 for lifting.
[0027] At the same time, the two groups of protective cover plates 602 and the two groups of anti-fall plates 301 are rotated upward out of the grooves of the cabin bottom plate 1 and the lifting platform bottom plate 2, so that when the subsequent lifting chain 4 and the hook 5 pull the hoisted object to rise, the hoisted object pushes the two groups of protective cover plates 602 and the two groups of anti-fall plates 301 to rotate upward, so that when the subsequent hook 5 drives the hoisted object into the interior of the wind turbine unit, there is no need to rotate and adjust the positions of the two groups of anti-fall plates 301 and the two groups of protective cover plates 602, thereby reducing the labor consumed by subsequent staff when using the device to hoist objects; through the device, in the process of protecting the staff, it is not necessary to significantly change the existing structure according to the internal structure of the wind turbine unit, so that the device can be quickly applied to the existing platform structure during use, thereby reducing the subsequent modification cost of the wind turbine unit, and making the device suitable for large-scale promotion, thereby improving the practicality of the device.
[0028] like Figure 2 and Figure 3 As shown, the warning mechanism 8 includes two groups of contact switches 802 and an alarm 801, the alarm 801 is installed on the lower surface of the cabin bottom plate 1, the two groups of contact switches 802 are respectively installed on the inner walls of the positioning grooves of the two groups of anti-fall plates 301, and the two groups of contact switches 802 are respectively arranged on the left and right sides of the lifting chain 4; specifically, the two groups of contact switches 802 are respectively arranged on the left and right sides of the lifting chain 4, so that the subsequent lifting chain 4 triggers the two groups of contact switches 802 during the rising or falling process to start the alarm 801 to sound an alarm to prompt the staff to rotate the two groups of protective cover plates 602 to close the inside of the groove of the cabin bottom plate 1, thereby avoiding as much as possible that the subsequent staff step on the inside of the groove of the cabin bottom plate 1 when using the lifting chain 4 and the hook 5 to hoist objects, thereby reducing the safety hazards of the device during use, thereby ensuring the personal safety of the staff themselves during the use of the equipment.
[0029] like Figure 1 and Figure 2 As shown, U-shaped grooves are provided on the upper surfaces of the two groups of protective cover plates 602, and LED warning lights 7 are provided inside the two groups of U-shaped grooves. The positions of the upper surfaces of the two groups of LED warning lights 7 are respectively maintained parallel to the positions of the upper surfaces of the two groups of protective cover plates 602; specifically, the positions of the two groups of LED warning lights 7 are respectively set on the upper surfaces of the two groups of protective cover plates 602, so that the two groups of LED warning lights 7 warn the staff at the upper end of the cabin floor 1 to accidentally step on the upper surfaces of the two groups of protective cover plates 602 while walking, thereby minimizing the subsequent damage of the two groups of protective cover plates 602 after long-term trampling, resulting in the two groups of protective cover plates 602 being unable to effectively block the grooves of the cabin floor plate 1, thereby improving the safety of the two groups of protective cover plates 602 during use.
[0030] In summary: the adjacent ends of the two sets of spring telescopic rods 304 are respectively arranged on the moving paths of the two sets of anti-fall plates 301, so that when the two sets of anti-fall plates 301 are subsequently rotated out of the grooves of the hoisting platform bottom plate 2, the upper surfaces of the two sets of anti-fall plates 301 are respectively abutted against the adjacent sides of the two sets of spring telescopic rods 304. When the subsequent staff releases the two sets of anti-fall plates 301 by hand, the elastic potential energy of the two sets of spring telescopic rods 304 themselves pushes the two sets of anti-fall plates 301 to reset and move to the inside of the grooves of the hoisting platform bottom plate 2, thereby minimizing the subsequent staff from rotating the two sets of After the anti-fall plate 301 moves the hook 5 to the outer end of the wind turbine unit to lift items, the position of the two sets of anti-fall plates 301 is forgotten to be reset, resulting in the anti-fall mechanism 3 being unable to cover and block the internal groove of the lifting platform bottom plate 2; by rotating the two sets of protective cover plates 602 to fit the adjacent sides of the two sets of protective cover plates 602 together, the two sets of protective cover plates 602 are used to block the inside of the groove of the cabin bottom plate 1, thereby minimizing the possibility that subsequent staff members step on the inside of the groove of the cabin bottom plate 1 when walking on the upper end of the cabin bottom plate 1, causing the staff members to fall to the upper surface of the lifting platform bottom plate 2.
[0031] At the same time, two groups of contact switches 802 are respectively arranged on the left and right sides of the lifting chain 4, so that the subsequent lifting chain 4 triggers the two groups of contact switches 802 during the rising or falling process to start the alarm 801 to sound an alarm to prompt the staff to turn the two groups of protective cover plates 602 to close the inside of the groove of the cabin bottom plate 1, thereby minimizing the possibility that the subsequent staff will step on the inside of the groove of the cabin bottom plate 1 when using the lifting chain 4 and the hook 5 to lift objects; the two groups of LED warning lights 7 are respectively arranged on the upper surfaces of the two groups of protective cover plates 602, so that the two groups of LED warning lights 7 warn the staff at the upper end of the cabin bottom plate 1 to accidentally step on the upper surfaces of the two groups of protective cover plates 602 while walking, thereby minimizing the possibility that the subsequent two groups of protective cover plates 602 are damaged after being stepped on for a long time, resulting in the two groups of protective cover plates 602 being unable to effectively cover the groove of the cabin bottom plate 1.
[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A load-bearing door-type semi-automatic anti-fall cover, comprising a cabin bottom plate (1), a hoisting platform bottom plate (2) and a lifting chain (4), characterized in that: The upper surfaces of the cabin bottom plate (1) and the lifting platform bottom plate (2) are provided with grooves, the interior of the groove of the cabin bottom plate (1) is provided with a second anti-fall mechanism (6), the interior of the groove of the lifting platform bottom plate (2) is provided with a first anti-fall mechanism (3) for preventing a worker at the upper end of the cabin bottom plate (1) from falling out of the fan unit, and the inner wall of the first anti-fall mechanism (3) is provided with a warning mechanism (8).
2. A load-bearing door type semi-automatic anti-falling cover according to claim 1, characterized in that: The anti-fall mechanism (3) comprises two sets of hinges (302) and two sets of fixed blocks (303); the upper surface of the cabin bottom plate (1) is hinged with an anti-fall plate (301) through two sets of hinges (302); the two sets of anti-fall plates (301) are rotatably connected to the inside of the groove of the hoisting platform bottom plate (2); the adjacent sides of the two sets of anti-fall plates (301) are in contact with each other; the adjacent sides of the two sets of anti-fall plates (301) are provided with positioning grooves; the two sets of fixed blocks (303) are installed on the upper surface of the hoisting platform bottom plate (2); the adjacent sides of the two sets of fixed blocks (303) are provided with through holes; the through holes of the two sets of fixed blocks (303) are provided with spring telescopic rods (304); and the adjacent ends of the two sets of spring telescopic rods (304) are respectively arranged on the moving paths of the two sets of anti-fall plates (301).
3. The load-bearing door type semi-automatic anti-falling cover according to claim 1, characterized in that: The anti-fall mechanism 2 (6) comprises a plurality of hinges 2 (601), and the upper surface of the cabin bottom plate (1) is hinged with two sets of protective cover plates (602) through a plurality of hinges 2 (601). The two sets of protective cover plates (602) are located inside the groove of the cabin bottom plate (1), and the adjacent sides of the two sets of protective cover plates (602) are in contact with each other. The adjacent sides of the two sets of protective cover plates (602) are both provided with arc grooves, and the position of the lifting chain (4) is arranged inside the arc grooves of the two sets of protective cover plates (602).
4. A load-bearing door type semi-automatic anti-falling cover according to claim 2, characterized in that: The warning mechanism (8) comprises two groups of contact switches (802) and an alarm (801), wherein the alarm (801) is mounted on the lower surface of the cabin bottom plate (1), and the two groups of contact switches (802) are respectively mounted on the inner walls of the positioning grooves of the two groups of anti-fall plates (301), and the two groups of contact switches (802) are respectively arranged on the left and right sides of the lifting chain (4).
5. The load-bearing door type semi-automatic anti-falling cover according to claim 3 is characterized in that: The upper surfaces of the two groups of protective cover plates (602) are both provided with U-shaped grooves, and LED warning lights (7) are arranged inside the two groups of U-shaped grooves. The positions of the upper surfaces of the two groups of LED warning lights (7) are respectively maintained parallel to the positions of the upper surfaces of the two groups of protective cover plates (602).