Double-platform herringbone ladder

Abstract

The utility model relates to a double-platform herringbone ladder, including front ladder frame, rear ladder frame, adapter lug, pedal, support rod and rotatory folding platform, front ladder frame and rear ladder frame are connected through adapter lug, front ladder frame and rear ladder frame mutually unfold or fold, pedal is provided in front ladder frame, support rod is provided in rear ladder frame, and the rotatory folding platform is provided with rotary folding platform. The rotary folding ladder is characterized in that the rotary folding platform comprises a platform plate, a fixed plate, a folding plate, a long connecting piece and a short connecting piece, the front end of the platform plate is hinged to the front ladder frame, and the platform plate rotates with the hinged position as the rotation center; according to the rotary folding platform, through reasonable structural design and mechanical property optimization, a user can stand on the first platform and the second platform more stably and comfortably, and the fatigue feeling of long-time operation is reduced.

Description

Technical Field

[0001] The utility model relates to a double-platform herringbone ladder. Background Art

[0002] Currently, most of the herringbone ladders on the market are single-platform herringbone ladders (with only the first platform and the pedal), and there are also a few double-platform herringbone ladders (with the first platform and the second platform).

[0003] The user usually stands on the top two levels (if it is a double platform, the user will stand on the first platform or the second platform, if it is a single platform, the user will stand on the first platform and the pedal).

[0004] For a single-platform ladder, when standing on the step (i.e., the second step from the top of the ladder), the user will feel uncomfortable standing due to the small size of the step, which can easily lead to fatigue and safety hazards.

[0005] Although double-platform ladders can provide more standing space and improve user comfort, they are more expensive, more complex, and have limited market acceptance. Utility Model Content

[0006] The utility model aims to provide a double-platform stepladder which can ensure standing comfort and safety and reduce production costs.

[0007] The purpose of the utility model is achieved in this way:

[0008] A double-platform herringbone ladder, comprising a front ladder frame, a rear ladder frame, a transfer ear, a pedal, a support rod and a rotating and folding platform, wherein the front ladder frame and the rear ladder frame are connected by the transfer ear, the front ladder frame and the rear ladder frame are mutually unfolded or folded, the pedal is arranged on the front ladder frame, and the support rod is arranged on the rear ladder frame, and is characterized in that:

[0009] The rotating folding platform comprises a platform plate, a fixed plate, a folding plate, a long connecting plate and a short connecting plate. The front end of the platform plate is hinged on the front ladder frame, and the platform plate rotates with the hinge as the rotation center.

[0010] The fixing plate is fixedly arranged on the front ladder frame and is located below the platform plate;

[0011] The front end of the folding plate is hinged to the fixed plate;

[0012] The upper end of the long connecting piece is hinged on the platform plate, and the lower end of the long connecting piece is hinged on the rear end of the folding plate;

[0013] One end of the short connecting piece is hinged to the upper end of the long connecting piece, and the other end of the short connecting piece is hinged to the rear ladder frame;

[0014] When the front ladder frame and the rear ladder frame are unfolded to each other, the long connecting piece and the short connecting piece drive the platform plate to rotate, so that the rear end of the platform plate sits on the corresponding support rod to form a first platform, and the long connecting piece and the short connecting piece drive the folding plate to rotate, so that the folding plate and the fixed plate are connected and flush to form a second platform.

[0015] The rotating and folding platform has reasonable structural design and optimized mechanical properties, making it more stable and comfortable for users to stand on the first and second platforms, reducing fatigue during long-term operation.

[0016] Through the structure of the front ladder frame, the rear ladder frame and the rotating folding platform, the platform plate and the folding plate can be rotated synchronously when the ladder is unfolded or folded, which is convenient for rapid unfolding and folding and improves the convenience of use.

[0017] Compared with the traditional double-platform herringbone ladder, this design reduces production costs by optimizing the structure and material usage without affecting the stability and safety of the product, making it more competitive in the market.

[0018] The optimized geometric dimensions and mechanical performance design make the stepladder more stable during use and reduce safety hazards during use.

[0019] The purpose of the utility model can also be solved by the following technical measures:

[0020] Furthermore, the long connecting piece and the short connecting piece are hinged at the center position of the side wall of the platform plate.

[0021] The long connecting piece and the short connecting piece are hinged at the center of the side wall of the platform plate, so that the platform plate is subjected to more uniform force when unfolding and carrying loads, effectively dispersing the load and improving the stability and durability of the overall structure.

[0022] The hinge point at the center of the side wall allows the platform to remain balanced when unfolded, reducing the sway of the platform when carrying heavy objects, further improving the stability and safety of the user when standing.

[0023] The hinge point design at the center simplifies the structure of the rotating and folding platform and reduces redundant connecting parts, thereby reducing production costs and installation complexity.

[0024] The hinge point is located at the center of the side wall of the platform board, which makes the movement of the long connecting piece and the short connecting piece smoother, and the unfolding and folding of the platform board and the folding board easier, improving the user experience of the ladder.

[0025] The hinged design at the center of the side wall ensures that the platform board can be accurately aligned with the support rod when unfolded to form a flat first platform. The folding board and the fixed board can also be better connected and flush to form a flat second platform, which improves the platform flatness and comfort during operation.

[0026] Furthermore, it also includes a tool box, which is arranged at the upper end of the front ladder frame.

[0027] The tool box is arranged at the upper end of the front ladder frame, so that the user can conveniently store and access commonly used tools during operation without having to frequently go up and down the ladder, which significantly improves work efficiency.

[0028] The tool box design provides a dedicated storage space where you can neatly place various tools and small accessories for easy access during work, reducing tool clutter.

[0029] The tool box provides a fixed storage area to prevent tools from being scattered on the platform or on the ground, reducing the risk of tripping and falling in the working environment and improving safety.

[0030] By arranging a tool box at the upper end of the front ladder frame, the structural space of the ladder is rationally utilized, and additional functionality is added without affecting the normal use and folding storage of the ladder.

[0031] The configuration of the tool box makes the ladder more versatile and user-friendly, meeting the user's need for tools to be readily available when working at height, and improving the overall user experience.

[0032] With the tool box, users can reduce the physical exertion caused by frequently going up and down the ladder to pick up and put away tools, reduce work fatigue, and improve the continuity and comfort of work.

[0033] Furthermore, it also includes an expansion tool box body, the tool box has a card slot, the expansion tool box body is provided with a card block, the card block is inserted into the corresponding card slot, and the expansion tool box body and the tool box are assembled together.

[0034] By adding an expansion tool box that can be quickly disassembled and assembled, the storage capacity of the tool box is significantly increased without increasing packaging and transportation costs and storage space, allowing users to place more items and tools.

[0035] The expansion tool box adopts a card block and card slot design. Users can quickly install or remove the expansion tool box according to their needs, flexibly adjust the size of the storage space, and improve the convenience of using the tool box.

[0036] The design of the expanded tool box body enables the tool box to accommodate tools of various types and sizes, meeting the user's diverse needs for tool storage in different work scenarios.

[0037] The expansion tool box can be disassembled when not in use and will not take up additional storage space, thus maintaining the compactness and portability of the ladder and facilitating storage and transportation.

[0038] The design of the card block and card slot makes the assembly and disassembly of the expansion tool box very simple and quick, without the need for additional tools or complicated operating steps, and users can easily make adjustments.

[0039] By providing more storage options and larger storage space, the expanded tool box greatly improves the convenience and satisfaction of users when using ladders, making the management of tools and items more efficient and orderly.

[0040] Without significantly increasing costs, the rational design of the expansion tool box has achieved the expansion of product functions, thereby enhancing the product's market competitiveness and users' purchasing desire.

[0041] The beneficial effects of the utility model are as follows:

[0042] The utility model provides a rotating and folding platform, through reasonable structural design and optimized mechanical performance, so that users can stand on the first platform and the second platform more stably and comfortably, and reduce fatigue caused by long-term operation.

[0043] The utility model reduces production costs by optimizing structure and material usage without affecting product stability and safety, making it more competitive in the market. The optimized geometric dimensions and mechanical performance design make the stepladder more stable during use, reducing safety hazards during use.

[0044] The utility model significantly increases the storage capacity of the tool box by adding an expansion tool box body that can be quickly disassembled and assembled, without increasing the packaging and transportation costs and the storage space, so that the user can place more articles and tools.

[0045] The utility model adopts a card block and a card slot design in the expansion tool box body, and the user can quickly install or disassemble the expansion tool box body according to the needs, flexibly adjust the size of the storage space, and improve the convenience of using the tool box. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of a double-platform herringbone ladder.

[0047] Figure 2 Schematic diagram of the rotating folding platform of a double-platform herringbone ladder.

[0048] Figure 3 This is the assembly drawing of the tool box and the expansion tool box body of the double platform stepladder.

[0049] Figure 4This is a schematic diagram of the unfolded state of the double-platform herringbone ladder (with the expansion tool box installed).

[0050] Figure 5 This is a schematic diagram of the double-platform stepladder in the folded state (with the expansion tool box installed). DETAILED DESCRIPTION

[0051] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0052] Example, combined with Figures 1 to 5 As shown, a double-platform herringbone ladder comprises a front ladder frame 1, a rear ladder frame 2, a transfer ear 3, a pedal 4, a support rod 5 and a rotating folding platform 6, wherein the front ladder frame 1 and the rear ladder frame 2 are connected via the transfer ear 3, the front ladder frame 1 and the rear ladder frame 2 are mutually unfolded or folded, the pedal 4 is arranged on the front ladder frame 1, the support rod 5 is arranged on the rear ladder frame 2, the rotating folding platform 6 comprises a platform plate 61, a fixed plate 62, a folding plate 63, a long connecting piece 64 and a short connecting piece 65, the front end of the platform plate 61 is hinged on the front ladder frame 1, and the platform plate 61 rotates with the hinge as the rotation center;

[0053] The fixing plate 62 is fixedly arranged on the front ladder frame 1 and is located below the platform plate 61;

[0054] The front end of the folding plate 63 is hinged to the fixed plate 62;

[0055] The upper end of the long connecting piece 64 is hinged on the platform plate 61, and the lower end of the long connecting piece 64 is hinged on the rear end of the folding plate 63;

[0056] One end of the short connecting piece 65 is hinged to the upper end of the long connecting piece 64, and the other end of the short connecting piece 65 is hinged to the rear ladder frame 2;

[0057] When the front ladder frame 1 and the rear ladder frame 2 are unfolded to each other, the long connecting piece 64 and the short connecting piece 65 drive the platform plate 61 to rotate, so that the rear end of the platform plate 61 sits on the corresponding support rod 5 to form a first platform, and the long connecting piece 64 and the short connecting piece 65 drive the folding plate 63 to rotate, so that the folding plate 63 and the fixed plate 62 are connected and flush to form a second platform.

[0058] Furthermore, the long connecting piece 64 and the short connecting piece 65 are hinged at the center of the side wall of the platform plate 61 .

[0059] Furthermore, a tool box 7 is included, and the tool box 7 is arranged at the upper end of the front ladder frame 1.

[0060] Furthermore, it also includes an expansion tool box body 8, the tool box 7 has a card slot 71, the expansion tool box body 8 is provided with a card block 81, the card block 81 is inserted into the corresponding card slot 71, and the expansion tool box body 8 and the tool box 7 are assembled together.

Claims

1. A double-platform herringbone ladder, comprising a front ladder frame, a rear ladder frame, a transfer ear, a pedal, a support rod and a rotating and folding platform, wherein the front ladder frame and the rear ladder frame are connected by a transfer ear, the front ladder frame and the rear ladder frame are mutually unfolded or folded, the pedal is arranged on the front ladder frame, and the support rod is arranged on the rear ladder frame, characterized in that: The rotating folding platform comprises a platform plate, a fixed plate, a folding plate, a long connecting plate and a short connecting plate. The front end of the platform plate is hinged on the front ladder frame, and the platform plate rotates with the hinge as the rotation center. The fixing plate is fixedly arranged on the front ladder frame and is located below the platform plate; The front end of the folding plate is hinged to the fixed plate; The upper end of the long connecting piece is hinged on the platform plate, and the lower end of the long connecting piece is hinged on the rear end of the folding plate; One end of the short connecting piece is hinged to the upper end of the long connecting piece, and the other end of the short connecting piece is hinged to the rear ladder frame; When the front ladder frame and the rear ladder frame are unfolded to each other, the long connecting piece and the short connecting piece drive the platform plate to rotate, so that the rear end of the platform plate sits on the corresponding support rod to form a first platform, and the long connecting piece and the short connecting piece drive the folding plate to rotate, so that the folding plate and the fixed plate are connected and flush to form a second platform.

2. The double-platform herringbone ladder according to claim 1, characterized in that: The long connecting piece and the short connecting piece are hinged at the center position of the side wall of the platform plate.

3. The double-platform herringbone ladder according to claim 1, characterized in that: Also included is a tool box, which is arranged on the upper end of the front ladder frame.

4. The double-platform herringbone ladder according to claim 3, characterized in that: It also includes an expansion tool box body, the tool box is provided with a card slot, the expansion tool box body is provided with a card block, the card block is inserted into the corresponding card slot, and the expansion tool box body and the tool box are assembled together.

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