Safety protection ladder for aloft work

By installing a protective mechanism and dual safety components on the top of the aerial work platform, and utilizing an intelligent alarm mechanism with pressure sensors and buzzers, the problem of insufficient safety in existing aerial work devices has been solved, achieving dual protection and timely alarm, thus improving the safety and comfort of workers.

CN223646266UActive Publication Date: 2025-12-09CHINA CLASSIFICATION SOCIETY QUALITY CERTIFICATION CO LTD SHAANXI BRANCH
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Patent Information

Application Number
CN202520214634.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-09
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Existing aerial work platform devices only have simple protective plates on the top, which cannot effectively prevent workers from being injured by external impacts, equipment failures, or improper operation, resulting in significant safety hazards.

Method used

A protective mechanism is installed on the top of the aerial work platform, including a protective plate, door panel, locking device and double safety components. The intelligent alarm mechanism using pressure sensors and buzzers ensures double protection for the workers, and the rubber pads increase friction and comfort.

Benefits of technology

It enables the other safety component to remain locked even if one becomes loose during operation, providing dual protection, timely alarm, improved safety and reliability, reduced accident risk, and increased wearing comfort and stability.

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Abstract

The utility model relates to the technical field of high-altitude operation protection, and particularly discloses a high-altitude operation safety protection ladder which comprises a high-altitude operation elevator device, and a protection mechanism is arranged on the top of the high-altitude operation elevator device. The protection mechanism comprises a protection plate installed on the top of the high-altitude operation elevator device, one side of the protection plate is connected with a door plate, a lock catch device is arranged between the protection plate and the door plate, two groups of symmetrical connecting ropes are arranged on the two sides of the interior of the protection plate, and a fixing belt is installed at one end of each connecting rope. Adjusting belts are arranged at the top and the bottom of the fixing belt, and safety assemblies are jointly arranged at the two ends of the two adjusting belts; the device is provided with two groups of safety assemblies, so that dual protection on operators is realized; meanwhile, through the alarm mechanism of the pressure sensor and the buzzer, it can be ensured that operators take protection measures in time, potential safety risks are avoided, and the reliability and timeliness of safety protection are further improved.
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Description

Technical Field

[0001] This utility model relates to the field of high-altitude operation protection technology, specifically a safety ladder for high-altitude operations. Background Technology

[0002] Aerial work platforms are specialized aerial work equipment used to lift workers, tools, and materials to a certain height for construction, installation, and maintenance work; aerial safety ladders are also used in the construction industry for working at heights.

[0003] Currently available aerial work platform devices typically only have a simple safety plate at the top to prevent workers from falling from heights. However, this protection method often overlooks the various risks that workers may face during aerial work, such as external impacts, equipment malfunctions, or improper operation. Once these risks occur, traditional protection methods may not be able to provide sufficient support and protection, resulting in injuries or even life-threatening situations for workers. Therefore, this application proposes a safety ladder for aerial work. Utility Model Content

[0004] The purpose of this utility model is to provide a safety ladder for high-altitude operations, in order to solve the problem mentioned in the background art that the existing high-altitude operation lifting equipment usually only has a simple protective plate at the top to prevent workers from falling from heights; however, this protection method often ignores the various risks that workers may face during high-altitude operations, such as external impact, equipment failure, or improper operation; once these risks occur, traditional protection methods may not be able to provide sufficient support and protection, resulting in injury or even death to workers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a safety ladder for high-altitude operations, including a high-altitude operation lifting ladder device, wherein a protective mechanism is provided on the top of the high-altitude operation lifting ladder device;

[0006] The protective mechanism includes a protective plate installed on the top of the aerial work platform. A door panel is connected to one side of the protective plate. A locking device is provided between the protective plate and the door panel. Two sets of symmetrical connecting ropes are provided on both sides of the inside of the protective plate. A fixing strap is installed at one end of each connecting rope. Adjusting straps are provided at the top and bottom of the fixing straps. Safety components are provided at both ends of the two adjusting straps.

[0007] The safety components include a first buckle and a second buckle connected to both ends of the adjusting belt, and the first buckle and the second buckle are compatible with each other.

[0008] Among them, the outer sides of the first buckle and the second buckle are respectively equipped with an installation plate and a connecting plate, and one side of the installation plate and the connecting plate are respectively equipped with a first fitting pad and a second fitting pad.

[0009] Both bonding pad one and bonding pad two are made of rubber and are the same size.

[0010] The mounting plate has a plug plate installed on one side, and the connecting plate has a slot inside.

[0011] The insert plate is located inside the slot, and the connecting plate has a connecting rod inside.

[0012] A pressure sensor is installed at the bottom of the connecting rod, and the pressure sensor and the connecting rod are the same size.

[0013] The top of the connecting rod extends through and to the top of the connecting plate, where a pull plate is installed. The diameter of the pull plate is larger than that of the connecting rod.

[0014] A spring is installed on the top of the connecting plate and outside the connecting rod, with one end of the spring connected to the pull plate.

[0015] One side of the second bonding pad is equipped with a control device and a buzzer.

[0016] This utility model has at least the following beneficial effects:

[0017] In use, this device is equipped with two sets of safety components. This design provides dual protection for the operator. Even if one safety component becomes loose or unlocked due to some reason (such as external impact, improper operation, etc.), the other safety component can still remain locked to ensure the operator's safety. At the same time, through the alarm mechanism of pressure sensor and buzzer, this intelligent alarm mechanism can ensure that the operator can take protective measures in time to avoid potential safety risks, further improving the reliability and timeliness of safety protection. The first and second contact pads are made of rubber, which not only increases the friction with the operator, but also improves the comfort and stability of wearing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the protective mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the safety component of this utility model;

[0021] Figure 4 This is a semi-exploded view of the safety component of this utility model;

[0022] Figure 5 This is an internal diagram of the safety component of this utility model.

[0023] In the diagram: 1. Aerial work platform; 2. Protective mechanism; 21. Protective plate; 22. Door panel; 23. Locking device; 24. Connecting rope; 25. Fixing strap; 26. Adjusting strap; 27. Safety component; 271. First buckle; 272. Second buckle; 273. Fitting pad one; 274. Fitting pad two; 275. Mounting plate; 276. Insert plate; 277. Connecting plate; 278. Control device; 279. Buzzer; 2710. Slot; 2711. Connecting rod; 2712. Pressure sensor; 2713. Pull plate; 2714. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: a safety protection ladder for high-altitude operations, including a high-altitude operation lifting ladder device 1, and a protective mechanism 2 is provided on the top of the high-altitude operation lifting ladder device 1;

[0027] The protective mechanism 2 includes a protective plate 21 installed on the top of the aerial work platform 1. A door panel 22 is connected to one side of the protective plate 21. A locking device 23 is provided between the protective plate 21 and the door panel 22. Two sets of symmetrical connecting ropes 24 are provided on both sides of the interior of the protective plate 21. A fixing strap 25 is installed at one end of each connecting rope 24. An adjusting strap 26 is provided at the top and bottom of the fixing strap 25. A safety component 27 is provided at both ends of the two adjusting straps 26.

[0028] Safety component 27 includes a first buckle 271 and a second buckle 272 connected to both ends of the adjusting belt 26. The first buckle 271 and the second buckle 272 are compatible. A mounting plate 275 and a connecting plate 277 are respectively installed on the outer sides of the first buckle 271 and the second buckle 272. A first fitting pad 273 and a second fitting pad 274 are respectively installed on one side of the mounting plate 275 and the connecting plate 277. Both the first fitting pad 273 and the second fitting pad 274 are made of rubber and are the same size. An insert plate 276 is installed on one side of the mounting plate 275. A slot 2710 is opened inside the connecting plate 277, and the insert plate 276 is located in the slot 2710. Inside the 0, a connecting rod 2711 is connected to the connecting plate 277. A pressure sensor 2712 is installed at the bottom of the connecting rod 2711. The pressure sensor 2712 and the connecting rod 2711 are the same size. A pull plate 2713 is installed at the top of the connecting rod 2711, extending through and to the top of the connecting plate 277. The diameter of the pull plate 2713 is larger than the diameter of the connecting rod 2711. A spring 2714 is installed at the top of the connecting plate 277 and outside the connecting rod 2711. One end of the spring 2714 is connected to the pull plate 2713. A control device 278 and a buzzer 279 are respectively provided on one side of the mating pad 274.

[0029] When workers need to work at height, they first enter the protective mechanism 2, close the door panel 22, and securely lock the door panel 22 to the protective plate 21 using the locking device 23 to ensure safety during the operation. Workers adjust the tightness of the fixing strap 25 using two adjusting straps 26 to accommodate different body types and work requirements. When both sets of first buckles 271 and second buckles 272 are engaged, the first and second contact pads 273 and 274 will fit tightly against the worker. Four sets of connecting ropes 24 increase the protection of workers, and their relatively long length not only increases the protection range but also allows workers to move freely within a certain range while maintaining connection with the protective mechanism 2. This design helps reduce the risk of accidents caused by workers accidentally falling or slipping. Finally, the aerial work platform 1 is activated according to the needs of the workers to raise it to the required height.

[0030] Before the first latch 271 and the second latch 272 are engaged, first pull the connecting rod 2711 upward with the pull plate 2713 to fully expose the slot 2710. The pull plate 2713 drives the spring 2714 to be in an extended state. When the first latch 271 moves closer to the second latch 272, the insert plate 276 on the mounting plate 275 will be inserted into the slot 2710 inside the connecting plate 277, which can further strengthen the locking state of the latch. When the first latch 271 and the second latch 272 are engaged, release the pull plate 2713. The spring 2714 drives the pull plate 2713, i.e. the connecting rod 2711 and the pressure sensor 2712, to move downward. At this time, the pressure sensor 2712 applies pressure to the insert plate 276 and senses this change.

[0031] If, during the operation, the first latch 271 and the second latch 272 become loose or unlocked due to some reason (such as external impact, improper operation, etc.), the insert plate 276 will be partially or completely pulled out of the slot 2710. At this time, the pressure sensor 2712 on the connecting rod 2711 will detect the pressure change and transmit the signal to the control device 278. After receiving the signal, the control device 278 will immediately trigger the buzzer 279 to sound an alarm, reminding the operator to pay attention to safety and take appropriate protective measures. After confirming that the safety component 27 is in the locked state, the operator can continue to carry out high-altitude operations.

[0032] Example 2

[0033] like Figures 1 to 5 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that two sets of safety components 27 are provided. When one safety component 27 becomes loose or unlocked, the other safety component 27 also protects the operator, providing double-layer protection and improving safety. Through the two adjustment straps 26, the operator can adjust the tightness of the fixing strap 25 according to their body shape and work needs. This design ensures that the safety component 27 can fit closely to the operator, providing stable support and protection. Furthermore, since the first contact pad 273 and the second contact pad 274 are made of rubber, when the first contact pad 273 and the second contact pad 274 fit with the operator, it not only increases the friction with the operator but also improves the comfort and stability of wearing.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety ladder for working at heights, comprising a high-altitude work lifting device (1), characterized in that: The top of the high-altitude work elevator device (1) is equipped with a protective mechanism (2); The protective mechanism (2) includes a protective plate (21) installed on the top of the high-altitude work elevator device (1). A door panel (22) is connected to one side of the protective plate (21). A locking device (23) is provided between the protective plate (21) and the door panel (22). Two sets of symmetrical connecting ropes (24) are provided on both sides of the interior of the protective plate (21). A fixing strap (25) is installed at one end of each connecting rope (24). An adjusting strap (26) is provided at the top and bottom of the fixing strap (25). A safety component (27) is provided at both ends of the two adjusting straps (26).

2. The safety ladder for high-altitude operations according to claim 1, characterized in that: The safety component (27) includes a first buckle (271) and a second buckle (272) connected to both ends of the adjusting belt (26), and the first buckle (271) and the second buckle (272) are adapted to each other.

3. The safety ladder for high-altitude operations according to claim 2, characterized in that: The first buckle (271) and the second buckle (272) are respectively equipped with an mounting plate (275) and a connecting plate (277), and respectively with a first fitting pad (273) and a second fitting pad (274) on one side of the mounting plate (275) and the connecting plate (277).

4. The safety ladder for high-altitude operations according to claim 3, characterized in that: Both the first bonding pad (273) and the second bonding pad (274) are made of rubber and are the same size.

5. The safety ladder for high-altitude operations according to claim 4, characterized in that: A plug plate (276) is installed on one side of the mounting plate (275), and a slot (2710) is provided inside the connecting plate (277).

6. The safety ladder for high-altitude operations according to claim 5, characterized in that: The insert plate (276) is located inside the slot (2710), and the connecting plate (277) is connected to the connecting rod (2711).

7. The safety ladder for high-altitude operations according to claim 6, characterized in that: A pressure sensor (2712) is installed at the bottom of the connecting rod (2711), and the pressure sensor (2712) and the connecting rod (2711) are the same size.

8. The safety ladder for high-altitude operations according to claim 7, characterized in that: The top end of the connecting rod (2711) extends through and to the top of the connecting plate (277) where a pull plate (2713) is installed. The diameter of the pull plate (2713) is larger than the diameter of the connecting rod (2711).

9. The safety ladder for high-altitude operations according to claim 8, characterized in that: A spring (2714) is installed on the top of the connecting plate (277) and outside the connecting rod (2711), one end of the spring (2714) being connected to the pull plate (2713).

10. The safety ladder for high-altitude operations according to claim 4, characterized in that: A control device (278) and a buzzer (279) are respectively provided on one side of the second bonding pad (274).