Safety guard high handrail platform ladder

Abstract

The utility model relates to a high handrail platform ladder of safety protection, including front ladder frame, rear ladder frame, connecting lug and platform, the front ladder frame interval is provided with the pedal, the rear ladder frame interval sets up the support axle, the front ladder frame and rear ladder frame are connected through connecting lug, realize the front ladder frame and rear ladder frame each other unfolding or each other folding, the platform one side is hinged on the front ladder frame, when the front ladder frame and rear ladder frame each other unfolding, the other side of platform is leaned on corresponding support axle, to make platform form the tread panel, the distance between tread panel and the top of front ladder frame is 1 meters, still include handrail part, handrail part sets up on the front ladder frame and is located tread panel top, when the user stands and works, handrail height and human body barycenter position are more matched, can provide reliable support when the body barycenter is off, significantly improve the safety protection effect.

Description

Technical Field

[0001] This utility model relates to a high handrail platform ladder for safety protection. Background Technology

[0002] Ladders are commonly used auxiliary tools for working at heights in daily production and life, and are widely used in warehousing, manufacturing, commercial displays, and home environments. Among them, platform ladders, as a type of ladder with a standing platform, provide users with a relatively stable working support surface, allowing users to operate freely with both hands when working at heights, thus offering high safety and convenience.

[0003] Traditional platform ladders typically consist of a frame, treads, and a platform. The front frame has several treads for users to climb, while the rear frame has a support shaft to maintain stability. The front and rear frames are usually hinged together by connectors or rods, allowing the ladder to unfold and fold for easy transport and storage. To prevent users from falling from the platform, traditional platform ladders usually have handrails or guardrails on both sides of the platform.

[0004] However, the handrail design of most platform stairs in the current technology still has obvious shortcomings. Specifically, the handrail height of traditional platform stairs (measured vertically from the standing surface of the platform) is mostly in the range of 700mm to 900mm, with only a few products reaching about 950mm, which is only equivalent to the minimum requirement of the current safety standards.

[0005] According to ergonomic and safety regulations, when a user is standing and working on a platform, if their center of gravity shifts unexpectedly, such as leaning forward, to the side, or backward, the low handrails of traditional platform ladders are insufficient to provide effective support and cannot support or prevent the user's center of gravity from shifting. This can easily lead to imbalance, slippage, or even tipping over, posing a significant safety hazard. This problem is particularly pronounced for taller users. Utility Model Content

[0006] The purpose of this utility model is to provide a platform ladder that improves user safety and operational comfort.

[0007] The purpose of this utility model is achieved as follows: A safety-protected high handrail platform ladder includes a front ladder frame, a rear ladder frame, connecting lugs, and a platform. The front ladder frame is provided with treads at intervals, and the rear ladder frame is provided with support shafts at intervals. The front and rear ladder frames are connected by the connecting lugs, allowing the front and rear ladder frames to unfold or fold together. One side of the platform is hinged to the front ladder frame. When the front and rear ladder frames are unfolded, the other side of the platform rests against the corresponding support shaft, so that the platform forms a step panel. The distance between the step panel and the top of the front ladder frame is 1 meter. It also includes a handrail component, which is disposed on the front ladder frame and located above the foot panel.

[0008] By setting the distance between the foot panel and the top of the front ladder frame to 1 meter and installing a handrail above it, the height of the handrail is more aligned with the user's center of gravity when the user is standing, providing reliable support when the body's center of gravity shifts, and significantly improving safety protection.

[0009] The objective of this utility model can also be achieved by the following technical measures: Furthermore, the height of the handrail component is 1 meter.

[0010] By designing the handrail components to a height of 1 meter, the proportional relationship between the handrail and the human body is further optimized, allowing users to naturally grip the handrail for support whether standing still or performing upper limb operations, thereby improving safety and comfort. This height not only meets ergonomic requirements but also prevents the risk of falls caused by handrails that are too low.

[0011] Furthermore, the handrail component includes a left handrail and a right handrail. The left handrail is disposed on the front ladder frame and located to the left of the tread, and the right handrail is disposed on the front ladder frame and located to the right of the tread. A working area is formed between the left handrail and the right handrail.

[0012] The handrail components include a left handrail and a right handrail, respectively located on both sides of the front ladder frame, forming a working area in the middle. This allows users to grip the handrails with both hands while climbing or standing, providing more stable support and balance. This structure ensures safety during climbing while providing ample working space above the platform, facilitating operations such as lifting, lifting, or installation. It enhances work comfort and flexibility, reducing inconvenience and safety risks caused by limited space.

[0013] Furthermore, the left handrail is tilted 25° to the left and the right handrail is tilted 25° to the right.

[0014] The left handrail is tilted 25° to the left, and the right handrail is tilted 25° to the right. This design increases the distance between the upper ends of the handrails, significantly expanding the effective space at the top of the platform and the working area. The tilted structure not only allows users to swing their arms more naturally when climbing or standing, reducing interference with the handrails, but also improves user comfort and operational freedom. At the same time, this structure optimizes the overall proportions, giving the platform ladder better ergonomics and safety while maintaining stable support.

[0015] Furthermore, the left handrail includes a U-shaped portion, a grip portion, and a connecting portion. One end of the grip portion is connected to one end of the U-shaped portion, the other end of the grip portion is connected to the upper end of the connecting portion, the other end of the U-shaped portion is connected to the front ladder frame, and the lower end of the connecting portion is connected to the front ladder frame. The left handrail and the right handrail have the same structure.

[0016] By designing the handrail with a structure that includes a U-shaped section, a grip section, and a connecting section, the handrail achieves a balance between support strength and grip comfort in terms of appearance. The U-shaped section provides stable top support, the grip section offers a natural grip position, and the connecting section ensures a secure connection with the front ladder frame, thereby improving the overall rigidity and safety of the ladder.

[0017] Furthermore, the grip portion of the left armrest is tilted 25° to the left, and the connecting portion is tilted forward; the grip portion of the right armrest is tilted 25° to the right, and the connecting portion is tilted forward.

[0018] By tilting the grip parts of the left and right armrests 25° to the sides and the connecting parts forward, the design not only conforms to the natural outward extension angle of the human arm, but also makes the grip more comfortable.

[0019] Furthermore, the U-shaped portion, the gripping portion, and the connecting portion are integrally formed.

[0020] By molding the U-shaped part, gripping part, and connecting part into one piece, the number of connection points and welding areas is reduced, avoiding safety hazards caused by loose connections during long-term use. This integrated structure improves overall strength and durability, simplifies the manufacturing process, and results in a more concise and aesthetically pleasing appearance.

[0021] Furthermore, it also includes a toolbox, which is positioned on top of the front ladder frame.

[0022] By adding a toolbox to the top of the front ladder frame, users can easily store or access tools, parts, and small items while working at height, reducing the frequency of climbing up and down the ladder and improving work efficiency. At the same time, the toolbox also helps to strengthen the rigidity of the top structure.

[0023] Furthermore, casters are provided on the side wall at the foot of the rear ladder frame.

[0024] Casters are installed at the rear ladder frame feet, allowing the platform ladder to be pushed and pulled directly after folding, which significantly improves the convenience of handling and storage, reduces the burden of manual lifting, and is especially suitable for factories, shopping malls and other workplaces that require frequent movement.

[0025] Furthermore, the foot panel is provided with side panels on the left, rear and right sides.

[0026] The installation of edge panels can form a partially enclosed protective structure around the platform, which can effectively prevent users from falling off the platform edge due to body shift, foot slip, or objects rolling during operation, thereby significantly improving safety and providing better overall safety protection.

[0027] The beneficial effects of this utility model are as follows: This invention sets the distance between the foot panel and the top of the front ladder frame to 1 meter, and also designs the handrail component to be 1 meter high, so that the handrail height matches the center of gravity position and the natural placement height of the upper limbs when the user is standing. This design is more ergonomic and can provide effective support when the user's center of gravity shifts, preventing falls and significantly improving work safety.

[0028] In this invention, the left handrail is tilted 25° to the left and the right handrail is tilted 25° to the right. This design increases the distance between the upper ends of the handrails, significantly expanding the effective space at the top of the platform and the working area. The tilted structure not only allows users to swing their arms more naturally when climbing or standing, reducing interference with the handrails, but also improves user comfort and operational freedom. Simultaneously, this structure optimizes the overall proportions, enabling the platform ladder to maintain stable support while possessing better ergonomics and safety. Attached Figure Description

[0029] Figure 1 A schematic diagram of a high handrail platform ladder for safety protection.

[0030] Figure 2 Front view of the high handrail platform ladder with safety protection.

[0031] Figure 3 Left view of a high handrail platform ladder with safety features.

[0032] Figure 4 This is a schematic diagram of the handrail components.

[0033] Figure 5 This is a top view of the handrail component. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments: Implementation examples, in conjunction with Figures 1 to 5 As shown, a safety-protected high handrail platform ladder includes a front ladder frame 1, a rear ladder frame 2, connecting lugs 3, and a platform 4. The front ladder frame 1 is provided with treads 11 at intervals, and the rear ladder frame 2 is provided with support shafts 21 at intervals. The front ladder frame 1 and the rear ladder frame 2 are connected by the connecting lugs 3, so that the front ladder frame 1 and the rear ladder frame 2 can be unfolded or folded together. One side of the platform 4 is hinged to the front ladder frame 1. When the front ladder frame 1 and the rear ladder frame 2 are unfolded together, the other side of the platform 4 is abutted against the corresponding support shaft 21 so that the platform 4 forms a step panel. The distance between the step panel and the top of the front ladder frame 1 is 1 meter. It also includes a handrail component 5, which is disposed on the front ladder frame 1 and located above the foot panel.

[0035] Furthermore, the height of the handrail component 5 is 1 meter.

[0036] Furthermore, the handrail component 5 includes a left handrail 6 and a right handrail 7. The left handrail 6 is disposed on the front ladder frame 1 and located on the left side of the step 11, and the right handrail 7 is disposed on the front ladder frame 1 and located on the right side of the step 11. A working area 8 is formed between the left handrail 6 and the right handrail 7.

[0037] Furthermore, the left armrest 6 is tilted 25° to the left, and the right armrest 7 is tilted 25° to the right.

[0038] Furthermore, the left handrail 6 includes a U-shaped portion 61, a grip portion 62, and a connecting portion 63. One end of the grip portion 62 is connected to one end of the U-shaped portion 61, and the other end of the grip portion 62 is connected to the upper end of the connecting portion 63. The other end of the U-shaped portion 61 is connected to the front ladder frame 1, and the lower end of the connecting portion 63 is connected to the front ladder frame 1. The left handrail 6 and the right handrail 7 have the same structure.

[0039] Furthermore, the grip portion 62 of the left armrest 6 is tilted 25° to the left, and the connecting portion 63 is tilted forward; the grip portion 62 of the right armrest 7 is tilted 25° to the right, and the connecting portion 63 is tilted forward.

[0040] Furthermore, the U-shaped portion 61, the gripping portion 62, and the connecting portion 63 are integrally formed.

[0041] Furthermore, it also includes a toolbox 10, which is disposed on top of the front ladder frame 1.

[0042] Furthermore, casters 9 are provided on the side wall at the foot of the rear ladder frame 2.

[0043] Furthermore, the left, rear and right sides of the foot panel are each provided with a surrounding panel 41.

[0044] The following are the instructions for using a high handrail platform ladder with safety features: In use, first unfold the front ladder frame 1 and the rear ladder frame 2 to a stable support state via the connecting lugs 3, so that the other side of the platform 4 firmly rests against the corresponding support shaft 21, forming a flat and reliable stepping panel. The user climbs up the platform 4 step by step along the steps 11 of the front ladder frame 1. When working on the platform 4, the user can hold the left handrail 6 and right handrail 7, which are set on both sides of the front ladder frame 1 and are arranged at an angle, to maintain body balance and obtain stable support. The angled handrail structure provides the user with a more spacious working area 8, making lifting, lifting, or installation operations more comfortable and natural. If tools are needed, they can be directly taken from the toolbox 10 set on the top of the front ladder frame 1, improving the convenience of operation. After the work is completed, the platform 4 ladder is folded and can be easily pushed or moved using the casters 9 set at the feet of the rear ladder frame 2, making it easy to store and move.

Claims

1. A safety-protected high handrail platform ladder, comprising a front ladder frame, a rear ladder frame, connecting ears, and a platform, wherein the front ladder frame is provided with treads at intervals, the rear ladder frame is provided with support shafts at intervals, the front and rear ladder frames are connected by the connecting ears, enabling the front and rear ladder frames to unfold or fold together, one side of the platform is hinged to the front ladder frame, and when the front and rear ladder frames are unfolded, the other side of the platform rests against the corresponding support shaft, so that the platform forms a step panel, characterized in that: The distance between the top of the foot panel and the front ladder frame is 1 meter; It also includes a handrail component, which is disposed on the front ladder frame and located above the foot panel.

2. The guarded high handrail platform ladder of claim 1, wherein: The height of the handrail component is 1 meter.

3. The guarded high handrail platform ladder of claim 2, wherein: The handrail component includes a left handrail and a right handrail. The left handrail is located on the front ladder frame and to the left of the tread, and the right handrail is located on the front ladder frame and to the right of the tread. A working area is formed between the left and right handrails.

4. The guarded high handrail platform ladder of claim 3, wherein: The left handrail is tilted 25° to the left and the right handrail is tilted 25° to the right.

5. The guarded high handrail platform ladder of claim 3, wherein: The left handrail includes a U-shaped part, a grip part, and a connecting part. One end of the grip part is connected to one end of the U-shaped part, and the other end of the grip part is connected to the upper end of the connecting part. The other end of the U-shaped part is connected to the front ladder frame, and the lower end of the connecting part is connected to the front ladder frame. The left handrail and the right handrail have the same structure.

6. The guarded high handrail platform ladder of claim 5, wherein: The grip portion of the left armrest is tilted 25° to the left, and the connecting portion is tilted forward. The grip portion of the right armrest is tilted 25° to the right, and the connecting portion is tilted forward.

7. A guard protected high handrail platform ladder according to claim 5 or 6 wherein: The U-shaped part, the gripping part, and the connecting part are integrally formed.

8. The guarded high handrail platform ladder of claim 1, wherein: It also includes a toolbox, which is located on top of the front ladder frame.

9. The guarded high handrail platform ladder of claim 1, wherein: Casters are provided on the side wall at the foot of the rear ladder frame.

10. The guarded high handrail platform ladder of claim 1, wherein: The foot panel is equipped with side panels on the left, back and right sides.

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