Steel straight ladder with Velcro anti-slip structure
By using the mechanical engagement of the hook and loop sides of the Velcro and the synchronous transmission components, the problem of reduced anti-slip performance of traditional steel ladders in wet or oily environments is solved, achieving stable climbing safety and efficient adjustment in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAFENG TECH (NANJING) CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-17
Smart Images
Figure CN224515110U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of steel straight ladders, specifically relating to steel straight ladders with Velcro anti-slip structure. Background Technology
[0002] Steel ladders are commonly used climbing tools in industrial production, construction, and equipment maintenance, and their safety and practicality are directly related to the life safety of workers. Traditional steel ladders mainly consist of support beams and crossbeams, with the crossbeams often having textured surfaces or covered with rubber to improve slip resistance.
[0003] Existing steel ladder anti-slip structures rely on friction. When the beam surface is contaminated with oil or water, or when workers' hands are wet, the anti-slip performance drops significantly, easily leading to slip accidents. Especially in high-altitude operations, stable contact between the hands and the beam is crucial for safety, and existing structures are insufficient to meet the anti-slip requirements in complex environments. Utility Model Content
[0004] The purpose of this invention is to provide a steel straight ladder with a hook and loop anti-slip structure, which can use the hook and loop sides of the crossbeam to form a mechanical engagement with the hook and loop sides of the glove, replacing simple friction with physical adsorption force, and can maintain a stable adhesion effect even in humid or oily environments.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A steel straight ladder with Velcro anti-slip structure includes two support beams and a glove. Multiple through holes are opened on the side walls of the two support beams on opposite sides, and crossbeams are installed in the two through holes located on the same axis.
[0007] The side walls of the crossbeam are all fixedly connected with hook and loop fasteners, and the surface of the glove is fixedly connected with hook and loop fasteners. The hook and loop fasteners are adapted to each other. The upper side of the crossbeam is provided with an arc-shaped baffle, and the two ends of the arc-shaped baffle are provided with limit components.
[0008] Furthermore, the limiting component includes a connecting plate fixedly connected to the two end faces of the arc-shaped baffle, an arc-shaped groove is opened on the side wall of the opposite side of the support beam at the through hole, a collar is rotatably connected to the side wall of the crossbeam in the inner cavity of the support beam, the other end of the connecting plate passes through the arc-shaped groove and is fixedly connected to the collar, and a synchronous transmission component is provided in the inner cavity of the support beam on the left side.
[0009] Furthermore, the synchronous transmission assembly includes a worm gear fixedly connected to the side wall of the left collar, and a worm is meshed with the rear side of multiple worm gears. The worm adopts a segmented structure, and the bottom end of the worm passes through the bottom of the support beam and is connected to a rocker arm.
[0010] Furthermore, a hexagonal block is fixedly connected to the bottom end of the worm gear, and a hexagonal sleeve is fixedly connected to the top end of the rocker arm, with the hexagonal block and the hexagonal sleeve being compatible.
[0011] Furthermore, multiple support cylinders are fixedly connected to the inner wall of the support beam, and the crossbeam is inserted into the support cylinders.
[0012] Furthermore, the hook and loop sides of the hook and loop fasteners are respectively bonded to the crossbeam and the glove with strong adhesive.
[0013] Furthermore, multiple support plates are fixedly connected to the inner wall of the support beam, and the worm gear passes through the support plates and is movably connected to them.
[0014] The technical effects achieved by this utility model are as follows:
[0015] This utility model of a steel straight ladder with a hook and loop anti-slip structure achieves a stable fit even in humid or oily environments by utilizing the interplay between the crossbeam, gloves, hook and loop hook surfaces, and hook and loop loop surfaces to form a mechanical engagement between the hook and loop hook surfaces on the crossbeam and the gloves. This physical adsorption force replaces simple friction.
[0016] This utility model of a steel straight ladder with a Velcro anti-slip structure achieves unified adjustment of all arc-shaped baffles through the cooperation between arc-shaped baffles and synchronous transmission components, utilizing the meshing of worm gears and worm wheels. Turning the rocker arm drives multiple collars to rotate synchronously, thereby adjusting the angle of the arc-shaped baffles. There is no need to operate each baffle individually, saving adjustment time. It is especially suitable for tall steel straight ladders and can provide efficient protection for the crossbeams when not in use. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a bottom view of the present invention;
[0019] Figure 3 This is a partial cross-sectional structural schematic diagram of the present invention;
[0020] Figure 4 This is a partial structural diagram of the arc-shaped baffle of this utility model under protective conditions;
[0021] Figure 5 This is a partial structural diagram of the arc-shaped baffle of this utility model in the open state;
[0022] Figure 6 This is a structural schematic diagram of the glove of this utility model;
[0023] Figure 7 This is a utility model Figure 3Enlarged view of point A in the image;
[0024] Figure 8 This is a utility model Figure 2 Enlarged view of point B in the image.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Support beam; 2. Crossbeam; 3. Support cylinder; 4. Hook and loop fastener; 5. Curved baffle; 6. Glove; 7. Hook and loop fastener; 8. Connecting plate; 9. Curved groove; 10. Collar; 11. Worm gear; 12. Worm; 13. Rocker arm; 14. Hexagonal block; 15. Hexagonal sleeve. Detailed Implementation
[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0028] like Figures 1-8 As shown, the steel straight ladder with Velcro anti-slip structure includes two support beams 1 and a glove 6. Multiple through holes are opened on the side wall of the two support beams 1 on opposite sides, and a crossbeam 2 is installed in the two through holes located on the same axis.
[0029] The side walls of the crossbeam 2 are all fixedly connected with hook and loop fasteners 4, and the surface of the glove 6 is fixedly connected with hook and loop fasteners 7. The hook and loop fasteners 4 and the hook and loop fasteners 7 are adapted to each other. The upper side of the crossbeam 2 is provided with arc-shaped baffles 5, and the two ends of the arc-shaped baffles 5 are provided with limit components.
[0030] The hook and loop fasteners 4 on the crossbeam 2 and the loop fasteners 7 on the glove 6 work together to form a mechanically engaged anti-slip structure. Compared to traditional anti-slip methods that rely on friction, this physical adhesion can maintain a stable fit even in wet or oily environments, significantly reducing the risk of slipping. Especially in high-altitude operations, it ensures stable contact between the hands and the crossbeam 2, improving climbing safety.
[0031] like Figure 7 As shown, the limiting component includes a connecting plate 8 fixedly connected to the two end faces of the arc-shaped baffle 5. An arc-shaped groove 9 is opened on the opposite side wall of the support beam 1 at the through hole. A collar 10 is rotatably connected to the side wall of the crossbeam 2 in the inner cavity of the support beam 1. The other end of the connecting plate 8 passes through the arc-shaped groove 9 and is fixedly connected to the collar 10. A synchronous transmission component is provided in the inner cavity of the left support beam 1.
[0032] The connecting plate 8 integrates the arc-shaped baffle 5 with the collar 10, allowing the arc-shaped baffle 5 to rotate synchronously as the collar 10 rotates on the side wall of the crossbeam 2. The arc-shaped groove 9 provides trajectory constraints for the movement of the connecting plate 8, ensuring that the arc-shaped baffle 5 can only be adjusted within a preset arc range, preventing excessive adjustment from affecting its use. This structural design makes the angle adjustment of the arc-shaped baffle 5 flexible and controllable; it can be rotated to a position that does not obstruct movement during climbing and to a protective position when not in use, balancing practicality and safety.
[0033] like Figure 4 and Figure 5 As shown, the synchronous transmission assembly includes a worm gear 11 fixedly connected to the side wall of the left collar 10. Multiple worm gears 11 are meshed with worms 12 on their rear sides. The worms 12 adopt a segmented structure, so that the threads on the surface of the worms 12 that mate with the worm gears 11 are all on the same shaft. The bottom end of the worm 12 passes through the bottom of the support beam 1 and is connected to a rocker arm 13.
[0034] The meshing transmission between the worm gear 11 and the worm 12 has a self-locking property, which can convert the rotational motion of the worm 12 into the rotation of the worm gear 11, thereby driving the collar 10 and the arc-shaped baffle 5 to rotate. After adjustment, it can stably maintain the current angle and will not automatically shift due to external force. The entire synchronous transmission assembly can be driven by turning the rocker arm 13 to achieve synchronous adjustment of all arc-shaped baffles 5 without the need for individual operation, saving time and effort.
[0035] like Figure 8 As shown, a hexagonal block 14 is fixedly connected to the bottom end of the worm gear 12, and a hexagonal sleeve 15 is fixedly connected to the top end of the rocker arm 13. The hexagonal block 14 and the hexagonal sleeve 15 are compatible.
[0036] Specifically, the fitting design of hexagonal block 14 and hexagonal sleeve 15 enables a detachable connection between worm gear 12 and rocker arm 13. When not in use, rocker arm 13 can be removed and stored separately, preventing it from protruding and causing potential damage from impacts, while also reducing the risk of damage from external factors. This detachable structure also facilitates the replacement of rocker arm 13; if it is damaged, only a new rocker arm 13 needs to be replaced, without replacing the entire synchronous transmission assembly, thus reducing maintenance costs. Furthermore, to increase ease of use, an electric wrench or similar device can be inserted directly into hexagonal block 14 to rotate the worm gear 12, offering high flexibility.
[0037] like Figure 3 and Figure 7 As shown, multiple support cylinders 3 are fixedly connected to the inner wall of the support beam 1, and the crossbeam 2 is inserted into the support cylinders 3. The support cylinders 3 provide additional support and positioning for the crossbeam 2, enhance the stability of the connection between the crossbeam 2 and the support beam 1, and reduce the swaying of the crossbeam 2 during climbing.
[0038] like Figure 5 and Figure 6As shown, the hook and loop fastener 4 and the loop fastener 7 are bonded to the crossbeam 2 and the glove 6 respectively using strong adhesive. The strong adhesive ensures the connection strength between the hook and loop fastener 4 and the crossbeam 2, and between the loop fastener 7 and the glove 6, preventing them from falling off during long-term use and frequent contact, and ensuring the reliability of the anti-slip structure.
[0039] like Figure 4 and Figure 5 As shown, multiple support plates are fixedly connected to the inner wall of the support beam 1, and the worm gear 12 passes through the support plates and is movably connected to them. The support plates support and position the worm gear 12, ensuring that the worm gear 12 maintains axial stability during rotation, avoiding the impact of worm gear 12 wobbling on the meshing accuracy with the worm wheel 11, and ensuring the stable operation of the synchronous transmission assembly.
[0040] The working principle of this utility model is as follows: When the operator needs to climb the straight ladder, the rocker arm 13 is first inserted into the hexagonal block 14 through the hexagonal sleeve 15. Then, the rocker arm 13 is rotated to drive the worm gear 12 to rotate. The worm gear 12 meshes with the worm wheel 11 to drive multiple collars 10 to rotate synchronously. The multiple collars 10 drive the arc-shaped baffle 5 to rotate 180° through the connecting plate 8, so that the Velcro hook surface 4 on the crossbeam 2 is exposed. When the operator climbs, he wears gloves 6. When he uses the gloves 6 to grip the crossbeam 2, the Velcro hook surface 4 and the Velcro loop surface 7 are bonded together to increase the friction between the operator's hand and the crossbeam 2, so as to avoid the phenomenon of slipping off due to hand slippage, thereby improving its safety performance.
[0041] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. Steel straight ladder with a non-slip structure with a magic tape, characterized in that: It includes two support beams (1) and a glove (6). The two support beams (1) have multiple through holes on their opposite side walls, and a crossbeam (2) is installed in the two through holes located on the same axis. The side walls of the crossbeam (2) are all fixedly connected with hook and loop fasteners (4), and the surface of the glove (6) is fixedly connected with hook and loop fasteners (7). The hook and loop fasteners (4) are adapted to the hook and loop fasteners (7). The upper side of the crossbeam (2) is provided with an arc-shaped baffle (5), and the two ends of the arc-shaped baffle (5) are provided with limit components.
2. The steel straight ladder with a Velcro anti-slip structure according to claim 1, characterized in that: The limiting component includes a connecting plate (8) fixedly connected to the two end faces of the arc-shaped baffle (5). An arc-shaped groove (9) is opened on the opposite side wall of the support beam (1) at the through hole. A collar (10) is rotatably connected to the side wall of the crossbeam (2) in the inner cavity of the support beam (1). The other end of the connecting plate (8) passes through the arc-shaped groove (9) and is fixedly connected to the collar (10). A synchronous transmission component is provided in the inner cavity of the support beam (1) on the left side.
3. The steel straight ladder with a magic tape anti-skid structure according to claim 2, characterized in that: The synchronous transmission assembly includes a worm gear (11) fixedly connected to the side wall of the left collar (10), and a worm (12) meshes with the rear side of the plurality of worm gears (11). The worm (12) adopts a segmented structure, and the bottom end of the worm (12) passes through the bottom of the support beam (1) and is connected to a rocker arm (13).
4. The steel straight ladder with a magic tape anti-skid structure according to claim 3, characterized in that: The bottom end of the worm gear (12) is fixedly connected to a hexagonal block (14), and the top end of the rocker arm (13) is fixedly connected to a hexagonal sleeve (15). The hexagonal block (14) and the hexagonal sleeve (15) are compatible.
5. The steel straight ladder with hook and loop fastener anti-slip structure of claim 1, wherein: The inner wall of the support beam (1) is fixedly connected with multiple support cylinders (3), and the crossbeam (2) is inserted into the support cylinders (3).
6. The steel straight ladder with hook and loop fastener anti-slip structure of claim 1, wherein: The hook and loop sides (4) and hook and loop sides (7) are respectively bonded to the crossbeam (2) and the glove (6) with strong adhesive.
7. The steel straight ladder with a magic tape anti-skid structure according to claim 3, characterized in that: The inner wall of the support beam (1) is fixedly connected with multiple support plates, and the worm (12) passes through the support plates and is movably connected to them.