Liftable high-altitude operation anti-falling device
By designing a liftable anti-fall device for high-altitude operations, the problem that traditional facilities cannot be moved and require vehicle coordination is solved, convenient operation and extensive protection are achieved, and operational safety is improved.
Patent Information
- Application Number
- CN202422666876.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-02
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-02
AI Technical Summary
Traditional high-altitude work protection facilities cannot be moved, cannot adapt to special site requirements, and may cause safety accidents when in obstacle locations. Traditional protective devices require the use of vehicles, the operation steps are cumbersome and the protection range is limited.
A liftable anti-fall device for high-altitude operations is designed, which includes a base plate, a connecting mechanism, a support frame and a traction rope system. The lifting of the device is achieved through a winch and a fixed pulley, and reliable protection is provided by combining a speed difference automatic controller and a limit structure.
It realizes convenient movement and height adjustment of the device, improves the safety of operators, simplifies operating steps, expands the protection range, and avoids the limitations of traditional devices.
Smart Images
Figure CN223392777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-altitude operation safety equipment, in particular to a liftable high-altitude operation anti-falling device. Background Art
[0002] In the field of aerial work, the safety and protection of workers has always been a key focus of the industry. Traditional aerial work protection measures are subject to factors such as site restrictions and installation location restrictions. Some work sites cannot be fixed to the location where traditional high-altitude fall protection equipment can be installed, and there is no particularly practical solution.
[0003] First of all, traditional high-altitude work protection facilities are fixed in position and cannot be moved. They are highly uniform and cannot be used in sites with special needs. They can only be used in fixed areas. If the site needs to be moved, the fixed fall protection device will lose its protective function, increasing the chance of safety accidents, thereby affecting the quality of work and the safety of workers.
[0004] Secondly, traditional aerial work protection platforms have certain limitations in terms of maneuverability. When moving a fixed-height protective platform, the platform cannot effectively control its height, and passing overhead obstacles can also cause safety accidents. Therefore, adding a lift function to the protective device is an urgent issue for the industry.
[0005] Furthermore, conventional fall protection devices require the cooperation of a vehicle, requiring the vehicle's wheels to press against the device or using gaps between multiple wheels to secure it. Using the vehicle as a stabilizing force, once the vehicle is secured, the protection device cannot be moved. This limits the scope of protection, increases the number of steps required by the driver, and fails to guarantee comprehensive protection at the location where the vehicle is required to operate. Therefore, developing an air operation protection device that is easily movable and does not require the cooperation of other equipment is of great significance to protecting the lives of operators. Utility Model Content
[0006] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a liftable high-altitude operation anti-falling device.
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is a liftable high-altitude work anti-fall device, comprising a base plate, a No. 1 connecting mechanism, a No. 2 connecting mechanism, a top support frame, and a connecting piece. A bottom support leg is installed on one side of the top of the base plate, a middle support frame connected in rotation is provided on the top of the bottom support frame, the middle support frame and the top support frame form a sliding connection structure through the No. 1 connecting mechanism and the No. 2 connecting mechanism, a fixed side arm is installed on one side of the top support frame, a horizontal guide rail is provided on the side arm, and a walking pulley is installed on the horizontal guide rail, a speed difference automatic controller is suspended below the walking pulley, a No. 2 traction rope is provided in the speed difference automatic controller, and a safety belt hook is connected to the end of the No. 2 traction rope;
[0008] The lifting mechanism comprises a first connecting plate, a roller, and a third connecting plate, wherein the left side of the middle support frame is provided with a plurality of limiting holes along its extension direction, and a winch is installed on the left side of the middle support frame, and a No. 1 connecting plate is respectively provided on the front and rear sides of the middle support frame, and the right end of each No. 1 connecting plate is respectively fixed to the top support frame, and a roller group composed of a plurality of rollers is provided between the two No. 1 connecting plates, and the roller group is slidably connected to the middle support frame, and the front and rear ends of the No. 3 connecting plate are respectively fixed to the No. 1 connecting plate, and the No. 3 connecting plate is provided with a fixed No. 4 connecting plate, and the fourth connecting plate is provided with a limiting plate rotatably connected, and the limiting plate and the limiting hole constitute a limiting structure, and the limiting plate is provided with an auxiliary plate rotatably connected on the side away from the No. 4 connecting plate, and the auxiliary plate is provided with an auxiliary connecting hole;
[0009] The No. 2 connecting mechanism includes a No. 2 connecting plate and a roller. A No. 2 connecting plate is respectively provided on the front and rear sides of the top support frame. The left end of each No. 2 connecting plate is fixedly connected to the middle support frame, and a roller group composed of multiple rollers is provided between the two No. 2 connecting plates. The roller group is slidingly connected to the top support frame. A fixed pulley frame is provided on the left side of the top support frame, and a fixed pulley connected in rotation is installed on the pulley frame. A No. 1 traction rope is wrapped around the winch, and the other end of the traction rope passes around the fixed pulley and is fixed to the top of the No. 3 connecting plate through a connecting piece.
[0010] As an improvement, leveling support legs are respectively installed at the four corners of the base plate.
[0011] As an improvement, a counterweight is provided on the top of the base plate at a side away from the bottom support frame.
[0012] As an improvement, the top of the bottom support frame and the middle support frame are respectively provided with connecting convex plates, positioning holes are opened on the connecting convex plates, and positioning rods are provided in the positioning holes.
[0013] As an improvement, a fixed traction connecting plate is provided on the No. 2 traction rope.
[0014] As an improvement, the capstan is provided with a strand shaft and a capstan hand wheel for driving the strand shaft.
[0015] As an improvement, both ends of the roller in the No. 1 connecting mechanism are rotatably connected to the No. 1 connecting plate, and both ends of the roller in the No. 2 connecting mechanism are rotatably connected to the No. 2 connecting plate.
[0016] The advantages of the present invention compared with the prior art are: the structural design of the device is reasonable, the design of the winch and the fixed pulley makes the lifting and lowering operation of the top support frame simpler and faster, and the coordinated use of the speed difference automatic controller and the No. 2 traction rope provides reliable anti-fall protection for the operators; in addition, the limiting fixation of the limiting plate and the limiting hole can improve the stability of the middle support frame and the top support frame during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a side view of a liftable anti-fall device for high-altitude operations according to the utility model;
[0018] Figure 2 This utility model is a three-dimensional anti-fall device for high-altitude operations that can be lifted and lowered. Figure 1 ;
[0019] Figure 3 This utility model is a three-dimensional anti-fall device for high-altitude operations that can be lifted and lowered. Figure 2 ;
[0020] Figure 4 This utility model is a kind of lifting high altitude work anti-fall device Figure 3 Enlarged view of part A in the middle;
[0021] Figure 5 This is a schematic diagram of the internal structure of the traction mechanism of a liftable anti-fall device for high-altitude operations of the utility model;
[0022] Figure 6 This utility model is a kind of lifting high altitude work anti-fall device Figure 5 Enlarged view of part B in the middle.
[0023] As shown in the figure: 1. Base plate, 2. Leveling support legs, 3. Counterweight, 4. Bottom support frame, 5. Middle support frame, 6. Positioning rod, 7. Top support frame, 8. Side arm, 9. Winch, 10. No. 1 connecting plate, 11. No. 2 connecting plate, 12. Pulley frame, 13. Fixed pulley, 14. Connecting piece, 15. No. 3 connecting plate, 16. No. 4 connecting plate, 17. Limiting plate, 18. Auxiliary plate, 19. Auxiliary connecting hole, 20. No. 1 traction rope, 21. Speed difference controller, 22. Safety belt hook, 23. Traction connecting plate, 24. Limiting hole, 25. Winch handwheel, 26. Roller, 27. Horizontal guide rail, 28. Walking pulley, 29. Connecting convex plate, 30. No. 2 traction rope. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the utility model of a liftable anti-fall device for high-altitude operations in conjunction with the accompanying drawings.
[0025] In conjunction with the accompanying drawings, a liftable high-altitude work anti-fall device includes a base plate 1, a No. 1 connecting mechanism, a No. 2 connecting mechanism, a top support frame 7, and a connecting piece 14. A bottom support leg 4 is installed on one side of the top of the base plate 1. A middle support frame 5 is provided on the top of the bottom support frame 4 to be rotatably connected. The middle support frame 5 and the top support frame 7 are connected to each other through a No. 1 connecting mechanism and a No. 2 connecting mechanism to form a sliding connection structure. A fixed side arm 8 is installed on one side of the top support frame 7. A horizontal guide rail 27 is provided on the side arm 8, and a walking pulley 28 is installed on the horizontal guide rail 27. A speed difference controller 21 is suspended below the walking pulley 28. A No. 2 traction rope 30 is provided in the speed difference controller 21, and a safety belt hook 22 is connected to the end of the No. 2 traction rope 30;
[0026] The first connecting mechanism comprises a first connecting plate 10, a roller 26, and a third connecting plate 15. The left side of the middle support frame 5 is provided with a plurality of limiting holes 24 along its extension direction. The winch 9 is installed on the left side of the middle support frame 5. A first connecting plate 10 is respectively provided on the front and rear sides of the middle support frame 5. The right end of each of the first connecting plates 10 is respectively fixed to the top support frame 7, and a roller group composed of a plurality of rollers 26 is provided between the two first connecting plates 10. The roller group is slidably connected to the middle support frame 5. The front and rear ends of the third connecting plate 15 are respectively fixed to the first connecting plate 10. The fourth connecting plate 16 is provided with a fixed fourth connecting plate 16. The fourth connecting plate 16 is provided with a rotatably connected limiting plate 17. The limiting plate 17 and the limiting hole 24 constitute a limiting structure. The limiting plate 17 is provided with a rotatably connected auxiliary plate 18 on the side away from the fourth connecting plate 16. The auxiliary plate 18 has an auxiliary connecting hole 19.
[0027] The No. 2 connecting mechanism includes a No. 2 connecting plate 11 and a roller 26. The No. 2 connecting plate 11 is respectively provided on the front and rear sides of the top support frame 7. The left end of each No. 2 connecting plate 11 is fixedly connected to the middle support frame 5, and a roller group composed of multiple rollers 26 is provided between the two No. 2 connecting plates 11. The roller group is slidingly connected to the top support frame 7. A fixed pulley frame 12 is provided on the left side of the top support frame 7. A fixed pulley 13 with a rotatable connection is installed on the pulley frame 12. A No. 1 traction rope 21 is wound around the winch 9. The other end of the traction rope 21 passes around the fixed pulley 13 and is fixed to the top of the No. 3 connecting plate 15 through the connecting member 14.
[0028] As a preferred implementation scheme of this embodiment, leveling support legs 2 are respectively installed at the four corners of the base plate 1.
[0029] As a preferred implementation scheme of this embodiment, a counterweight 3 is provided on the top side of the base plate 1 away from the bottom support frame 4.
[0030] As a preferred implementation scheme of this embodiment, the top of the bottom support frame 4 and the middle support frame 5 are respectively provided with connecting protruding plates 29, and positioning holes are opened on the connecting protruding plates 29, and positioning rods 6 are provided in the positioning holes.
[0031] As a preferred implementation scheme of this embodiment, a fixed traction connecting plate 23 is provided on the No. 2 traction rope 30, and a secondary rope is provided on the traction connecting plate 23.
[0032] As a preferred implementation scheme of this embodiment, the capstan 9 is provided with a strand shaft and a capstan hand wheel 25 for driving the strand shaft.
[0033] As a preferred implementation scheme of this embodiment, both ends of the roller 26 in the No. 1 connecting mechanism are respectively rotatably connected to the No. 1 connecting plate 10, and both ends of the roller 26 in the No. 2 connecting mechanism are respectively rotatably connected to the No. 2 connecting plate 11.
[0034] As a preferred implementation scheme of this embodiment, an auxiliary traction rope is connected to the auxiliary connecting hole 19.
[0035] When the utility model is implemented, before using the device, if the working ground is uneven, the working surface can be adjusted by the leveling support frame 2 to ensure that the device does not shake when in use;
[0036] By turning the winch handwheel 25, the top support frame 7 is driven to slide along the middle support frame 5 through the transmission of the No. 1 traction rope 20 and the No. 3 connecting plate 15 to adjust the lifting and lowering. The lowest height of this device is 4.5 meters, and the highest height is 6.2 meters. Since the limiting plate 17 and the limiting hole 24 constitute a limiting structure, when this device needs to be lowered, it is necessary to first pull the auxiliary traction rope provided on the auxiliary connecting hole 19 to rotate the auxiliary plate 18 and abut against the middle support frame 5. As the auxiliary plate 18 rotates, the limiting plate 17 will be disconnected from the limiting hole 24, thereby releasing the limiting state, and then the device is lowered by rotating the winch handwheel 25.
[0037] When the device is moved, the counterweight 3 and the rest of the device body can be moved separately by a forklift. At the same time, in order to ensure that the center of gravity of the device is not unstable due to rotation during the movement, the middle support frame 5 must be rotated first so that the connecting protrusion 29 on the bottom support frame 4 is aligned with the connecting protrusion 29 on the middle support frame 5, and the positioning rod 6 is used for positioning;
[0038] In addition, a secondary rope is provided on the traction connecting plate 23. When the operator wears the safety belt, he pulls the secondary rope downward to pull the No. 2 traction rope 30 and the safety belt hook 22 downward. After connecting the safety belt hook 22 to the back hanging point of the safety belt, the secondary rope is removed and high-altitude operations can be carried out.
[0039] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A liftable anti-fall device for high-altitude operations, characterized in that: The invention comprises a bottom plate (1), a No. 1 connecting mechanism, a No. 2 connecting mechanism, a top support frame (7), and a connecting piece (14); a bottom support frame (4) is installed on one side of the top of the bottom plate (1); a middle support frame (5) is provided on the top of the bottom support frame (4); the middle support frame (5) and the top support frame (7) form a sliding connection structure through the No. 1 connecting mechanism and the No. 2 connecting mechanism; a fixed side arm (8) is installed on one side of the top support frame (7); a horizontal guide rail (27) is provided on the side arm (8); and a walking pulley (28) is installed on the horizontal guide rail (27); a speed difference automatic controller (21) is suspended below the walking pulley (28); a No. 2 traction rope (30) is provided in the speed difference automatic controller (21); and a safety belt hook (22) is connected to the end of the No. 2 traction rope (30); The No. 1 connecting mechanism comprises a No. 1 connecting plate (10), a roller (26), and a No. 3 connecting plate (15). A plurality of limiting holes (24) are provided on the left side of the middle support frame (5) along its extension direction. A winch (9) is installed on the left side of the middle support frame (5). A No. 1 connecting plate (10) is provided on the front and rear sides of the middle support frame (5). The right end of each No. 1 connecting plate (10) is fixedly connected to the top support frame (7). A roller group consisting of a plurality of rollers (26) is provided between the two No. 1 connecting plates (10). The rollers The group is slidably connected to the middle support frame (5), the front and rear ends of the third connecting plate (15) are respectively fixed to the first connecting plate (10), the third connecting plate (15) is provided with a fixed fourth connecting plate (16), the fourth connecting plate (16) is provided with a rotatably connected limiting plate (17), the limiting plate (17) and the limiting hole (24) constitute a limiting structure, the limiting plate (17) is provided with a rotatably connected auxiliary plate (18) on the side away from the fourth connecting plate (16), and the auxiliary plate (18) is provided with an auxiliary connecting hole (19); The No. 2 connecting mechanism comprises a No. 2 connecting plate (11) and a roller (26). The No. 2 connecting plate (11) is respectively provided on the front and rear sides of the top support frame (7). The left end of each No. 2 connecting plate (11) is respectively fixedly connected to the middle support frame (5), and a roller group consisting of a plurality of rollers (26) is provided between the two No. 2 connecting plates (11). The roller group is slidably connected to the top support frame (7). A fixed pulley frame (12) is provided on the left side of the top support frame (7). A rotatably connected fixed pulley (13) is installed on the pulley frame (12). A No. 1 traction rope (20) is wound around the winch (9). The other end of the No. 1 traction rope (20) passes around the fixed pulley (13) and is fixedly connected to the top of the No. 3 connecting plate (15) through a connecting piece (14).
2. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: Leveling support legs (2) are respectively installed at the four corners of the base plate (1).
3. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: A counterweight (3) is provided on the top of the bottom plate (1) at a side away from the bottom support frame (4).
4. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: The top of the bottom support frame (4) and the middle support frame (5) are respectively provided with connecting convex plates (29), and a positioning hole is opened on the connecting convex plate (29), and a positioning rod (6) is provided in the positioning hole.
5. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: The second traction rope (30) is provided with a fixed traction connecting plate (23).
6. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: The capstan (9) is provided with a strand shaft and a capstan hand wheel (25) for driving the strand shaft.
7. The liftable anti-fall device for high-altitude work according to claim 1, characterized in that: The two ends of the roller (26) in the No. 1 connecting mechanism are respectively rotatably connected to the No. 1 connecting plate (10), and the two ends of the roller (26) in the No. 2 connecting mechanism are respectively rotatably connected to the No. 2 connecting plate (11).