Universal antiskid device for insulating ladder

Abstract

The invention discloses a universal anti-skid device for insulating ladders, and relates to the field of insulating ladder accessories, the universal anti-skid device comprises a base plate, a distance adjusting mechanism and two ladder rod connecting mechanisms, and one side of the base plate is provided with an anti-skid structure; the two ladder rod connecting mechanisms are symmetrically arranged on the other side of the base plate, each ladder rod connecting mechanism comprises a U-shaped lug seat, a supporting plate, a ladder rod clamping assembly and an angle adjusting and locking assembly, the two ladder rod connecting mechanisms are fixed to the two upper ends of the insulating ladder, and the anti-skid structure on one side of the base plate is in attached contact with supporting faces such as a wall face; therefore, line contact between the upper end of a traditional insulating ladder and a supporting face is converted into face contact, the contact area and friction force are remarkably increased, even on a smooth supporting face such as a ceramic tile wall face, the device can effectively resist lateral force generated in the climbing or operation process of an operator, the risk that the ladder top slips or slips or overturns is remarkably reduced, and the safety of the ladder is improved. Therefore, the overall safety and stability of climbing operation are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of insulated ladder accessories, specifically relating to a universal anti-slip device for insulated ladders. Background Technology

[0002] In power system operation, maintenance, and emergency repair work, insulated ladders are an important tool for power supply workers to work at heights, especially in environments close to live equipment or lines, where their excellent insulation performance can effectively protect the personal safety of workers.

[0003] However, in actual use, insulated ladders are usually leaned against the substation frame, wall or other supporting structure at an angle, with the upper end of the ladder only in line contact with the supporting surface through the edge of the ladder beam.

[0004] The friction between this type of insulated ladder and the wall is limited, especially on smooth walls (such as tiled walls). Under the lateral force generated during the climb and operation, the top of the ladder is prone to slipping and shifting. In severe cases, the insulated ladder may tip over, causing a fall from a height and posing a great threat to the life safety of the workers.

[0005] Therefore, we propose a universal anti-slip device for insulated ladders to solve the above problems. Summary of the Invention

[0006] In view of the problem that the upper part of the ladder only forms a line contact with the support surface through the edge of the ladder beam, resulting in limited friction, and is prone to slippage and displacement of the ladder top under the action of lateral forces generated during the climbing and operation of workers, the present invention provides a universal anti-slip device for insulated ladders.

[0007] The solution adopted by the present invention to solve its technical problem is: a universal anti-slip device for insulated ladders, including a base plate, a spacing adjustment mechanism and two sets of ladder rod connection mechanisms, wherein an anti-slip structure is provided on one side of the base plate; Two sets of ladder rod connecting mechanisms are symmetrically arranged on the other side of the base plate. Each set of ladder rod connecting mechanisms includes a U-shaped ear seat, a support plate, a ladder rod clamping assembly, and an angle adjustment and locking assembly. The support plate is set inside the U-shaped ear seat, and its upper end is rotatably connected to the U-shaped ear seat. The angle adjustment and locking assembly is installed between the U-shaped ear seat and the support plate to fix the tilt angle of the support plate relative to the U-shaped ear seat. The ladder rod clamping assembly is installed on one side of the tray corresponding to the ladder rod, and is used to fasten it to the upper end of the ladder rod; The spacing adjustment mechanism is mounted on the base plate and connected to the lower ends of the two U-shaped lugs for synchronously adjusting the lateral spacing between the two ladder rod connecting mechanisms.

[0008] Preferably, the substrate has at least one set of limiting grooves on one side corresponding to the U-shaped ear seat, and two limiting blocks are slidably disposed in the limiting grooves, with the two limiting blocks respectively fixedly connected to the two U-shaped ear seats.

[0009] Preferably, arc-shaped grooves are formed on both sides of the U-shaped ear seat.

[0010] Preferably, the angle adjustment locking assembly includes two connecting studs, which are respectively fixed on the front and rear sides of the support plate. The connecting studs pass through the corresponding arc-shaped grooves and are fitted with positioning nuts on their outer sides.

[0011] Preferably, the ladder rod clamping assembly includes a pressure plate and two spaced-apart fixing studs. The fixing studs are welded and fixed to one side of the support plate corresponding to the ladder rod. A placement space for accommodating the ladder rod is formed between the two fixing studs. The pressure plate has two reserved holes corresponding to the two fixing studs respectively, so that the pressure plate spans the two fixing studs. A pressing nut is threaded onto the fixing studs so that the pressure plate presses the upper end of the ladder rod.

[0012] Preferably, the spacing adjustment mechanism includes a mounting box, a bidirectional threaded rod, and two threaded blocks. The mounting box is fixed to the base plate, and the bidirectional threaded rod is rotatably mounted inside the mounting box, with its front and rear halves having threads in opposite directions. The two threaded blocks respectively mate with the front and rear threaded sections of the bidirectional threaded rod, and are respectively fixedly connected to the lower ends of the two U-shaped lugs.

[0013] Preferably, a rotating disk is welded and fixed to one end of the bidirectional threaded rod.

[0014] Preferably, the anti-slip structure is an anti-slip texture or anti-slip pad disposed on one side of the substrate.

[0015] Preferably, the ladder rod clamping assembly includes a stainless steel cable tie, one end of which passes through a through hole in the support plate and wraps around the upper end of the ladder rod to connect with the self-locking structure of the other end of the stainless steel cable tie, thereby fixing the ladder rod to the support plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention fixes two sets of ladder rod connecting mechanisms to the two upper ends of an insulated ladder and makes the anti-slip structure on one side of the base plate in close contact with the supporting surface such as a wall. This transforms the line contact between the upper end of the traditional insulated ladder and the supporting surface into a surface contact, significantly increasing the contact area and friction. Even on smooth supporting surfaces such as tiled walls, this device can effectively resist the lateral forces generated by workers during climbing or operation, significantly reducing the risk of slipping, sliding, or overturning at the top of the ladder, thereby greatly improving the overall safety and stability of working at height.

[0017] 2. The present invention uses a ladder clamping assembly to fasten the upper end of the ladder rod to the support plate, ensuring the stability of the connection between the device and the insulated ladder, and the connection method is simple and convenient.

[0018] 3. By rotating the bidirectional threaded rod, the two threaded blocks can be moved away from or closer to each other, thereby synchronously adjusting the spacing of the two sets of ladder rod connection mechanisms, which can adapt to the ladder rod spacing of different specifications of insulated ladders.

[0019] 4. By loosening the positioning nut, the pallet can be rotated, thus flexibly adapting to the tilt angle formed between the insulated ladder and the support surface during actual use. After adjustment, the positioning nut can be tightened again to reliably fix the pallet at the required angle position, thereby improving the adaptability of the device to different working scenarios and ensuring that the anti-slip structure is always fully in contact with the support surface. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention in use.

[0021] In the diagram: 1. Base plate, 11. Limiting groove, 2. Limiting block, 31. U-shaped ear seat, 32. Pin, 33. Support plate, 34. Arc groove, 35. Connecting stud, 36. Pressure plate, 37. Pressing nut, 38. Fixing stud, 39. Positioning nut, 41. Mounting box, 42. Bidirectional threaded rod, 43. Rotary disk, 44. Threaded block, 5. Anti-slip pad. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-3 This invention provides a technical solution for a universal anti-slip device for insulated ladders: Example 1: according to Figure 1-3 As shown, it includes a base plate 1, a spacing adjustment mechanism and two sets of ladder rod connection mechanisms. One side of the base plate 1 is provided with an anti-slip structure, which is an anti-slip texture or anti-slip pad 5 provided on one side of the base plate 1 to increase the contact area and friction.

[0024] Two sets of ladder rod connection mechanisms are symmetrically arranged on the other side of the base plate 1. By fixing the two sets of ladder rod connection mechanisms to the two upper ends of the insulated ladder and making the anti-slip structure on one side of the base plate 1 in close contact with the support surface such as the wall, the line contact between the upper end of the traditional insulated ladder and the support surface is transformed into a surface contact, which significantly increases the contact area and friction. Even on smooth support surfaces such as tiled walls, this device can effectively resist the lateral force generated by the workers during climbing or operation, significantly reducing the risk of slipping, sliding or overturning at the top of the ladder, thereby greatly improving the overall safety and stability of climbing operations.

[0025] Each set of ladder rod connection mechanism includes a U-shaped lug 31, a support plate 33, a ladder rod clamping assembly, and an angle adjustment and locking assembly. The support plate 33 is set inside the U-shaped lug 31, and its upper end is hinged to the U-shaped lug 31 through a pin 32, so that the support plate 33 can rotate, thereby flexibly adapting to the tilt angle formed between the insulated ladder and the support surface in actual use.

[0026] Arc-shaped grooves 34 are respectively provided on the two side walls of the U-shaped ear seat 31. The angle adjustment and locking assembly includes two connecting studs 35. The two connecting studs 35 are respectively fixed on the front and rear sides of the support plate 33. The connecting studs 35 pass through the corresponding arc-shaped grooves 34 and are equipped with positioning nuts 39 on their outer sides to fix the tilt angle of the support plate 33 relative to the U-shaped ear seat 31.

[0027] The ladder rod clamping assembly includes a pressure plate 36 and two spaced-apart fixing studs 38. The fixing studs 38 are welded and fixed to one side of the support plate 33 corresponding to the ladder rod. The two fixing studs 38 form a placement space for accommodating the ladder rod. The pressure plate 36 has two reserved holes, which correspond to the two fixing studs 38 respectively, so that the pressure plate 36 spans the two fixing studs 38. The fixing studs 38 are threaded with a pressing nut 37, so that the pressure plate 36 presses the upper end of the ladder rod, ensuring the stability of the connection between the device and the insulated ladder, and the connection method is simple and convenient.

[0028] The spacing adjustment mechanism includes a mounting box 41, a bidirectional threaded rod 42, and two threaded blocks 44. The mounting box 41 is fixed on the base plate 1. Bearings are respectively fitted at both ends of the bidirectional threaded rod 42. The two bearings are respectively installed in the mounting box 41 so that the bidirectional threaded rod 42 can rotate stably. Its front half and rear half have threads with opposite directions of rotation. A rotating disk 43 is welded and fixed to one end of the bidirectional threaded rod 42.

[0029] Two threaded blocks 44 respectively engage with the front and rear threaded sections of the bidirectional threaded rod 42, and are fixedly connected to the lower ends of the two U-shaped lugs 31, for synchronously adjusting the lateral spacing between the two ladder rod connecting mechanisms, thereby adapting to the ladder rod spacing of different specifications of insulated ladders.

[0030] In practical use, the present invention provides a universal anti-slip device for insulated ladders. First, based on the actual width of the insulated ladder, the rotating disk 43 drives the bidirectional threaded rod 42 to rotate, causing the two threaded blocks 44 to move away from or closer to each other, changing the distance between the two U-shaped lugs 31, so that the two support plates 33 correspond to the two upper ends of the insulator respectively. Then, place the two upper ends of the insulated ladder on the two support plates 33 respectively, and use the pressure plate 36 and the pressing nut 37 to fix the ladder rod between the support plate 33 and the pressure plate 36 to ensure the stability of the connection between the device and the insulated ladder. Finally, lift the insulated ladder so that the protective structure fits against the wall or other supporting surface, and the workers can climb the insulator to carry out maintenance work.

[0031] Example 2: Based on Example 1, such as Figure 1 and Figure 3 As shown, the substrate 1 has at least one set of limiting grooves 11 on one side corresponding to the U-shaped ear seat 31. The limiting groove 11 is a trapezoidal groove or a T-shaped groove. Two limiting blocks 2 are slidably arranged in the limiting groove 11. The limiting blocks 2 are trapezoidal blocks or T-shaped blocks. The two limiting blocks 2 are fixedly connected to the two U-shaped ear seats 31 respectively, which improves the stability of the U-shaped ear seat 31 during the movement process.

[0032] Example 3: Based on Embodiment 1, the differences are as follows: the ladder rod clamping assembly includes a stainless steel cable tie, one end of which passes through a through hole in the support plate 33 and wraps around the upper end of the ladder rod to connect with the self-locking structure of the other end of the stainless steel cable tie, thereby fixing the ladder rod to the support plate 33.

Claims

1. A universal anti-slip device for insulated ladders, comprising a base plate, a spacing adjustment mechanism, and two sets of ladder rod connecting mechanisms, characterized in that: One side of the substrate is provided with an anti-slip structure; Two sets of ladder rod connecting mechanisms are symmetrically arranged on the other side of the base plate. Each set of ladder rod connecting mechanisms includes a U-shaped ear seat, a support plate, a ladder rod clamping assembly, and an angle adjustment and locking assembly. The support plate is set inside the U-shaped ear seat, and its upper end is rotatably connected to the U-shaped ear seat. The angle adjustment and locking assembly is installed between the U-shaped ear seat and the support plate to fix the tilt angle of the support plate relative to the U-shaped ear seat. The ladder rod clamping assembly is installed on one side of the tray corresponding to the ladder rod, and is used to fasten it to the upper end of the ladder rod; The spacing adjustment mechanism is mounted on the base plate and connected to the lower ends of the two U-shaped lugs for synchronously adjusting the lateral spacing between the two ladder rod connecting mechanisms.

2. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: The substrate has at least one set of limiting grooves on one side corresponding to the U-shaped ear seat, and two limiting blocks are slidably arranged in the limiting grooves. The two limiting blocks are respectively fixedly connected to the two U-shaped ear seats.

3. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: Arc-shaped grooves are respectively opened on the two side walls of the U-shaped ear seat.

4. The universal anti-slip device for insulated ladders according to claim 3, characterized in that: The angle adjustment locking assembly includes two connecting studs, which are respectively fixed on the front and rear sides of the support plate. The connecting studs pass through the corresponding arc-shaped grooves and are fitted with positioning nuts on their outer sides.

5. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: The ladder rod clamping assembly includes a pressure plate and two spaced-apart fixing studs. The fixing studs are welded and fixed to one side of the support plate corresponding to the ladder rod. A placement space for accommodating the ladder rod is formed between the two fixing studs. The pressure plate has two reserved holes corresponding to the two fixing studs respectively, so that the pressure plate spans the two fixing studs. A pressing nut is threaded on the fixing studs to press the upper end of the ladder rod tightly.

6. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: The spacing adjustment mechanism includes a mounting box, a bidirectional threaded rod, and two threaded blocks. The mounting box is fixed on the base plate, and the bidirectional threaded rod is rotatably mounted in the mounting box. Its front half and rear half have threads with opposite directions of rotation. The two threaded blocks respectively mate with the front and rear threaded sections of the bidirectional threaded rod, and are respectively fixedly connected to the lower ends of the two U-shaped lugs.

7. The universal anti-slip device for insulated ladders according to claim 6, characterized in that: A rotating disk is welded and fixed to one end of the bidirectional threaded rod.

8. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: The anti-slip structure is an anti-slip texture or anti-slip pad disposed on one side of the substrate.

9. The universal anti-slip device for insulated ladders according to claim 1, characterized in that: The ladder rod clamping assembly includes stainless steel cable ties. One end of the stainless steel cable tie passes through a through hole in the support plate and wraps around the upper end of the ladder rod to connect with the self-locking structure of the other end of the stainless steel cable tie, thereby fixing the ladder rod to the support plate.

Images