Folding telescopic ladder stand with movable handrail
Through the combined design of the main mechanism and movable handrails, the problem of lack of handrails in traditional ladders is solved, and the safety and adaptability of ladders are improved to meet different height needs.
Patent Information
- Application Number
- CN202421853943.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The lack of movable handrails in traditional ladders leads to insecurity, and the use height of telescopic folding ladders cannot be further improved, which cannot meet the operating needs of better locations.
The coordinated design of the main mechanism, support block, main body side plate, limit hole, bolts, telescopic grooves, movable handrail devices, hinges and other components is adopted to ensure that the movable handrail is fixed in a suitable position and to improve the safety and adaptability of the ladder.
By maintaining the horizontal state of the movable handrail and fixing the appropriate position, the safety and adaptability of the ladder are improved, ensuring that there is always a handrail support during the climbing process to prevent falling off and adapt to different height needs.
Smart Images
Figure CN223151976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ladders, in particular to a folding and telescopic ladder with a movable handrail. Background Art
[0002] The main components of the ladder are vertical poles, horizontal bars, diagonal bars, cross braces, ladders, footrests, external wall brackets, protective nets, etc., which are applied to various engineering constructions such as building construction, bridges, overpasses, tunnels, culverts, chimneys, water towers, dams, and large-span scaffolds.
[0003] Patent publication number CN214836057U discloses a folding and telescopic ladder with a movable handrail, which includes a track group, a ladder, a first self-locking mechanism, a second self-locking mechanism, a movable handrail, and a limiting member. One end of the ladder is hinged to the sliding member and can be accommodated in the track group; the first self-locking mechanism is arranged at one end of the track group
[0004] In order to solve the problem that traditional ladders are unsafe without handrails, the prior art uses a foldable handrail method, but there will still be a situation where the use height of the telescopic folding ladder cannot be further increased, which leads to the problem that operations cannot be carried out at better positions. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a folding and telescopic ladder with a movable handrail to solve the problems raised in the above background art.
[0006] To solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A folding and telescopic ladder with a movable handrail includes a main body mechanism, and a telescopic folding mechanism is arranged inside the main body mechanism. The main body mechanism includes a support block, a main body side plate is fixedly connected to the side of the support block, a main body pedal is fixedly connected to the side of the main body side plate, a limiting hole is opened inside the side of the main body side plate, and a bolt is threadedly connected inside the limiting hole.
[0008] A further improvement of the technical solution of the utility model lies in that: a first strong magnet is fixedly connected to another side of the main body side plate, a movable handrail device is fixedly connected to another side of the main body side plate, a telescopic groove is opened inside the top surface of the main body side plate, and a limiting groove is opened inside the side surface of the telescopic groove.
[0009] A further improvement of the technical solution of the utility model lies in that: the movable handrail device includes a first hinge, the first hinge is fixedly connected to another side of the main body side plate, the other end of the first hinge is fixedly connected to a movable plate, a second strong magnet is fixedly connected to the top surface of the movable plate, and a second hinge is fixedly connected to the side of the second strong magnet.
[0010] A further improvement of the technical solution of the present utility model lies in that: the other end of the second hinge is fixedly connected with an armrest, the inner part of the top surface of the armrest is movably connected with a telescopic armrest, a limiting jack is opened inside the side surface of the telescopic armrest, a limiting pin is clamped inside the limiting jack, and an anti - detachment cap is fixedly connected to the top surface of the telescopic armrest.
[0011] A further improvement of the technical solution of the present utility model lies in that: the telescopic folding mechanism includes a limiting slider, the outer surface of the limiting slider is slidably connected inside the limiting groove, the side surface of the limiting slider is fixedly connected with a telescopic side plate, the outer surface of the telescopic side plate is slidably connected inside the telescopic groove, a fixing screw hole is opened inside the side surface of the telescopic side plate, the other end of the bolt is threadedly connected inside the fixing screw hole, a telescopic pedal is fixedly connected to the inner side surface of the telescopic side plate, a third hinge is fixedly connected to the top surface of the telescopic side plate, and the other end of the third hinge is fixedly connected with a folding ladder.
[0012] A further improvement of the technical solution of the present utility model lies in that: a fixing plate is fixedly connected to the side surface of the folding ladder, a stabilizing block is fixedly connected to one end of the side surface of the fixing plate, a fixing bolt is movably connected inside the side surface of the fixing plate, a stabilizing hole is opened at one end of the inner side surface of the telescopic pedal, a fixing hole is opened in the middle of the side surface of the telescopic pedal, a clamping groove is opened inside the bottom surface of the folding ladder, a clamping block is clamped inside the clamping groove inside the bottom surface of the folding ladder, and the other end of the clamping block is clamped inside the inner part of the top surface of the telescopic pedal.
[0013] Due to the adoption of the above - mentioned technical solution, the technical progress achieved by the present utility model compared with the prior art is:
[0014] 1. The utility model provides a foldable telescopic ladder with movable handrails, which adopts the cooperation of a main body mechanism, a support block, a main body side plate, a limit hole, a bolt, a main body pedal, a telescopic slot, a limit slot, a movable handrail device, a hinge 1, a movable plate, a strong magnet 2, a hinge 2, a handrail, a telescopic handrail, an anti-drop cap, a limit jack, a limit pin, and a strong magnet 1. The movable handrail device can only be kept in a horizontal state when opened through the support block, and will not be opened too much to affect the support. The strong magnet 1 can cooperate with the strong magnet 2 inside the movable handrail device to keep the movable handrail device in a retracted state. The main body pedal can provide a ladder for the user. The cooperation of the telescopic slot and the limit slot allows the telescopic folding mechanism to be retracted inside the main body mechanism, and when extended The armrest can be folded and unfolded by the cooperation of hinge one, movable plate and hinge two. When the armrest is folded, the magnetic force between strong magnet two and strong magnet one can keep the armrest in the folded state. When it is needed, just pull off the armrest with a little force. When the telescopic folding mechanism starts to extend, the telescopic armrest can be pulled out, so that there is still a handrail when climbing the telescopic folding mechanism, which improves safety. The anti-drop cap can prevent the telescopic armrest from falling off. When the telescopic armrest is in a suitable position, the limit pin can be connected inside the limit socket to fix the position of the telescopic armrest, which improves the adaptability of the device.
[0015] 2. The utility model provides a foldable telescopic climbing ladder with movable handrails, which adopts the cooperation of telescopic folding mechanism, limit slider, telescopic side plate, fixing screw hole, telescopic pedal, stabilizing hole, fixing hole, hinge three, folding ladder, fixing plate, clamping block, stabilizing block and fixing bolt. The limit slider can slide inside the telescopic groove along with the telescopic side plate. When the telescopic side plate slides to the highest point, the cooperation of the limit slider and the limit groove can prevent the telescopic folding mechanism from separating from the main mechanism. The telescopic pedal can enable the user to have a stepping point inside the telescopic folding mechanism. The cooperation of the fixing screw hole, the limit hole and the bolt can fix the telescopic folding mechanism when it is extended to a suitable position. When the required ladder height is insufficient, the clamping block is pulled out so that the folding ladder can rotate along hinge three. When the stabilizing block is clamped in the inside of the stabilizing hole, the cooperation of the fixing hole and the fixing bolt makes the folding ladder more stable, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 It is a structural schematic diagram of the main mechanism of the utility model;
[0018] Figure 3 It is a structural schematic diagram of the movable armrest device of the utility model;
[0019] Figure 4 This is a schematic structural diagram of the telescopic folding mechanism of the present utility model.
[0020] In the figure: 1. Main body mechanism; 11. Support block; 12. Main body side plate; 13. Limit hole; 14. Bolt; 15. Main body pedal; 16. Telescopic groove; 17. Limit groove; 18. Movable armrest device; 181. Hinge 1; 182. Movable plate; 183. Strong magnet 2; 184. Hinge 2; 185. Armrest; 186. Telescopic armrest; 187. Anti - detachment cap; 188. Limit jack; 189. Limit pin; 19. Strong magnet 1; 2. Telescopic folding mechanism; 21. Limit slider; 22. Telescopic side plate; 23. Fixed screw hole; 24. Telescopic pedal; 25. Stable hole; 26. Fixed hole; 27. Hinge 3; 28. Folding ladder; 29. Fixed plate; 210. Clamping block; 211. Stable block; 212. Fixed bolt. Detailed implementation mode
[0021] The following further elaborates on the present utility model in conjunction with embodiments:
[0022] Embodiment 1
[0023] As Figures 1-4 shown, the present utility model provides a folding telescopic ladder with a movable armrest, including a main body mechanism 1. A telescopic folding mechanism 2 is arranged inside the main body mechanism 1. The main body mechanism 1 includes a support block 11. A main body side plate 12 is fixedly connected to the side of the support block 11. A main body pedal 15 is fixedly connected to the side of the main body side plate 12. A limit hole 13 is opened inside the side of the main body side plate 12. A bolt 14 is threadedly connected inside the limit hole 13. A strong magnet 19 is fixedly connected to another side of the main body side plate 12. A movable armrest device 18 is fixedly connected to another side of the main body side plate 12. A telescopic groove 16 is opened inside the top surface of the main body side plate 12. A limit groove 17 is opened on the inner side surface of the telescopic groove 16.
[0024] In this embodiment, when the movable armrest device 18 is opened through the support block 11, it can only maintain a horizontal state and will not be overly opened to affect support. The strong magnet 19 can cooperate with the strong magnet 2 183 inside the movable armrest device 18 to keep the movable armrest device 18 in a contracted state. The main body pedal 15 can provide steps for the user. The cooperation of the telescopic groove 16 and the limit groove 17 enables the telescopic folding mechanism 2 to telescopically move inside the main body mechanism 1 and will not disengage from the main body mechanism 1 even when extended to the highest point. The cooperation of the limit hole 13 and the bolt 14 can fix the telescopic folding mechanism 2 extended to an appropriate position.
[0025] Embodiment 2
[0026] As Figures 1-4As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the movable armrest device 18 includes a hinge one 181, the hinge one 181 is fixedly connected to the other side of the main body side plate 12, the other end of the hinge one 181 is fixedly connected with a movable plate 182, a strong magnet two 183 is fixedly connected to the top surface of the movable plate 182, a hinge two 184 is fixedly connected to the side surface of the strong magnet two 183, the other end of the hinge two 184 is fixedly connected with an armrest 185, a telescopic armrest 186 is movably connected to the inner part of the top surface of the armrest 185, a limit jack 188 is opened in the inner part of the side surface of the telescopic armrest 186, a limit pin 189 is clamped in the inner part of the limit jack 188, and an anti - detachment cap 187 is fixedly connected to the top surface of the telescopic armrest 186.
[0027] In this embodiment, through the cooperation of the hinge one 181, the movable plate 182 and the hinge two 184, the armrest 185 can be folded and unfolded. When the armrest 185 is folded, the armrest 185 is kept in the folded state by the magnetic force between the strong magnet two 183 and the strong magnet one 19. When in use, just pull the armrest 185 with a little force. When the telescopic folding mechanism 2 starts to extend, the telescopic armrest 186 can be pulled out, so that there is still an armrest when climbing the telescopic folding mechanism 2, improving safety. The anti - detachment cap 187 can prevent the telescopic armrest 186 from falling off. When the position of the telescopic armrest 186 is appropriate, the limit pin 189 is clamped in the inner part of the limit jack 188 to fix the position of the telescopic armrest 186.
[0028] Embodiment 3
[0029] As Figures 1-4 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the telescopic folding mechanism 2 includes a limit slider 21, the outer surface of the limit slider 21 is slidably connected to the inside of the limit groove 17, a telescopic side plate 22 is fixedly connected to the side surface of the limit slider 21, the outer surface of the telescopic side plate 22 is slidably connected to the inside of the telescopic groove 16, a fixing screw hole 23 is opened in the inner part of the side surface of the telescopic side plate 22, the other end of the bolt 14 is threadedly connected to the inside of the fixing screw hole 23, a telescopic pedal 24 is fixedly connected to the inner side surface of the telescopic side plate 22, a hinge three 27 is fixedly connected to the top surface of the telescopic side plate 22, the other end of the hinge three 27 is fixedly connected with a folding ladder 28, a fixing plate 29 is fixedly connected to the side surface of the folding ladder 28, a stabilizing block 211 is fixedly connected to one end of the side surface of the fixing plate 29, a fixing bolt 212 is movably connected to the inner part of the side surface of the fixing plate 29, a stabilizing hole 25 is opened at one end of the inner part of the side surface of the telescopic pedal 24, a fixing hole 26 is opened in the middle of the side surface of the telescopic pedal 24, a clamping groove is opened in the inner part of the bottom surface of the folding ladder 28, a clamping block 210 is clamped in the clamping groove inside the bottom surface of the folding ladder 28, and the other end of the clamping block 210 is clamped in the inner part of the top surface of the telescopic pedal 24.
[0030] In this embodiment, the limit slider 21 can slide inside the telescopic groove 16 along with the telescopic side plate 22. When the telescopic side plate 22 slides to the highest point, the cooperation between the limit slider 21 and the limit groove 17 can prevent the telescopic folding mechanism 2 from detaching from the main body mechanism 1. The telescopic pedal 24 can provide a foothold for the user inside the telescopic folding mechanism 2. The cooperation of the fixing screw hole 23, the limit hole 13 and the bolt 14 can fix the telescopic folding mechanism 2 when it extends to the appropriate position. When the required ladder height is insufficient, the clamping block 210 is pulled out, so that the folding ladder 28 can rotate along the hinge three 27. When the stabilizing block 211 is clamped inside the stabilizing hole 25, the folding ladder 28 can be made more stable through the cooperation of the fixing hole 26 and the fixing bolt 212.
[0031] Next, the working principle of the folding telescopic ladder with movable handrails will be specifically described.
[0032] As Figures 1-4 shown, by pulling out the telescopic folding mechanism 2 to the appropriate position, when the position is appropriate, the access bolt 14 is inserted into the limit hole 13 and the fixing screw hole 23 to fix its position. When the required height is insufficient, the telescopic folding mechanism 2 is extended to the maximum distance inside the main body mechanism 1 and fixed by the bolt 14. After pulling out the clamping block 210, the folding ladder 28 can be folded with the hinge three 27 as the axis, and the position is found through the cooperation of the stabilizing hole 25 and the stabilizing block 211. The folding ladder 28 is fixed through the cooperation of the fixing bolt 212 and the fixing hole 26. At this time, the handrail 185 is pulled off the strong magnet one 19 to open the movable handrail device 18, the telescopic handrail 186 is stretched to the appropriate position, and the limit pin 189 is clamped inside the limit jack 188 to fix the height of the telescopic handrail 186. At this time, the adjusted device is stably placed in the appropriate position, and the climbing operation can be quickly carried out.
[0033] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A folding and telescopic ladder with movable handrails, comprising a main body mechanism (1), characterized in that: Inside the main body mechanism (1), a telescopic folding mechanism (2) is provided; The main body mechanism (1) includes a support block (11), a main body side plate (12) is fixedly connected to the side surface of the support block (11), a main body pedal (15) is fixedly connected to the side surface of the main body side plate (12), a limiting hole (13) is formed inside the side surface of the main body side plate (12), and a bolt (14) is threadedly connected inside the limiting hole (13).
2. The foldable and telescopic ladder with movable handrails according to claim 1, wherein: Another side surface of the main body side plate (12) is fixedly connected with a strong magnet I (19), another side surface of the main body side plate (12) is fixedly connected with a movable armrest device (18), a telescopic groove (16) is formed inside the top surface of the main body side plate (12), and a limiting groove (17) is formed inside the side surface of the telescopic groove (16).
3. The foldable telescopic ladder with movable handrails according to claim 2, characterized in that: The movable armrest device (18) includes a hinge I (181), the hinge I (181) is fixedly connected to another side surface of the main body side plate (12), the other end of the hinge I (181) is fixedly connected with a movable plate (182), a strong magnet II (183) is fixedly connected to the top surface of the movable plate (182), and a hinge II (184) is fixedly connected to the side surface of the strong magnet II (183).
4. A folding and telescopic ladder with movable handrails according to claim 3, characterized in that: The other end of the hinge II (184) is fixedly connected with an armrest (185), a telescopic armrest (186) is movably connected inside the top surface of the armrest (185), a limiting jack (188) is formed inside the side surface of the telescopic armrest (186), a limiting pin (189) is clamped inside the limiting jack (188), and an anti - detachment cap (187) is fixedly connected to the top surface of the telescopic armrest (186).
5. A folding and telescopic ladder with movable handrails according to claim 1, characterized in that: The telescopic folding mechanism (2) includes a limiting slider (21), the outer surface of the limiting slider (21) is slidably connected inside the limiting groove (17), a telescopic side plate (22) is fixedly connected to the side surface of the limiting slider (21), the outer surface of the telescopic side plate (22) is slidably connected inside the telescopic groove (16), a fixing screw hole (23) is formed inside the side surface of the telescopic side plate (22), the other end of the bolt (14) is threadedly connected inside the fixing screw hole (23), a telescopic pedal (24) is fixedly connected to the inner side surface of the telescopic side plate (22), a hinge III (27) is fixedly connected to the top surface of the telescopic side plate (22), and the other end of the hinge III (27) is fixedly connected with a folding ladder (28).
6. The foldable and telescopic ladder with movable handrails according to claim 5, characterized in that: A fixing plate (29) is fixedly connected to the side surface of the folding ladder (28), a stabilizing block (211) is fixedly connected to one end of the side surface of the fixing plate (29), a fixing bolt (212) is movably connected inside the side surface of the fixing plate (29), a stabilizing hole (25) is formed at one end inside the side surface of the telescopic pedal (24), a fixing hole (26) is formed in the middle of the side surface of the telescopic pedal (24), a clamping groove is formed inside the bottom surface of the folding ladder (28), and a clamping block (210) is clamped inside the clamping groove inside the bottom surface of the folding ladder (28), and the other end of the clamping block (210) is clamped inside the top surface inside the telescopic pedal (24).