Cross ladder
By designing adjustable-height ladder components and lap plates, the problem of ladders being unable to adapt to speed lines at different heights was solved, achieving versatility and safety for ladders on various speed lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUATING HEFEI POWER TECH
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-21
AI Technical Summary
The existing ladders cannot accommodate speed lines at different heights, making them unusable in some venues.
A strut ladder was designed, comprising two step ladder assemblies and a movable lap plate that can move along the Z-axis and whose height can be adjusted by fasteners to accommodate speed lines of different heights.
It achieves adjustable ladder height, is suitable for speed lines of various heights, improves versatility, and facilitates personnel crossing and equipment maintenance.
Smart Images
Figure CN224149479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ladder technology for production lines, and more specifically, to a ladder with a strut. Background Technology
[0002] The double-speed production line is a widely used production line equipment in industries such as electronics and automotive manufacturing. Its main function is to transport materials via chain drive, characterized by high efficiency, flexibility, and stability. The double-speed production line achieves rapid movement and automatic deceleration and accumulation through friction transmission between the chain and the tooling plate. The chain's operating speed is twice that of the tooling plate, supporting continuous production and high-efficiency operation. In addition, the double-speed production line also has an accumulation function, allowing the tooling plate to temporarily stop on the line to accommodate the different operation times of different processes. However, double-speed lines are typically long, resulting in longer travel times for personnel to communicate between production lines and for equipment maintenance and repair. Therefore, ladders are usually used to facilitate communication between personnel on both sides of the double-speed line, allow personnel to quickly cross the line, and also facilitate equipment maintenance and repair.
[0003] However, the height of the existing speed ramps varies depending on the site height, so some speed ramps may not be usable at certain heights. Utility Model Content
[0004] This invention provides a ladder that can adjust the height of the lap plate according to the height of the speed multiplier line, so as to be suitable for speed multiplier lines of various heights and improve versatility.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] An embodiment of this utility model provides a ladder span, which includes:
[0007] Two staircase components;
[0008] An overlapping plate, one end of which is movably connected to one of the step ladder components, and the other end of which is movably connected to another step ladder component; the overlapping plate is movable relative to the step ladder component along the Z-axis.
[0009] In an optional embodiment, the lap plate includes a lap plate body and a connecting plate, the lap plate body and the connecting plate being vertically connected; the connecting plate has an adjustment hole extending along the Z-axis direction; the ladder also includes a fastener, the fastener passing through the adjustment hole and the ladder assembly to connect the connecting plate and the ladder assembly; the fastener is movable within the adjustment hole.
[0010] In an optional embodiment, the staircase assembly is provided with a plurality of mounting holes, which are spaced apart along the Z-axis direction; the fastener passes through the adjustment hole and any of the mounting holes to connect the connecting plate and the staircase assembly.
[0011] In an optional embodiment, each of the staircase components includes a staircase body and a first handrail, wherein the first handrail is provided on both sides of the staircase body and is detachably connected to the staircase body.
[0012] In an optional implementation, the first handrail is inserted into the staircase body.
[0013] In an optional embodiment, each of the stair components further includes a plurality of first plug-in posts, which are disposed on both sides of the stair body; each of the first plug-in posts is provided with a first slot, and the first handrail is inserted into the first slot.
[0014] In an optional embodiment, the staircase body includes two fixed frames and multiple stair treads. The two fixed frames are arranged in parallel and spaced apart, and the multiple stair treads are arranged between the two fixed frames. The overlapping plate is movably connected to the fixed frame. Each stair tread is provided with an anti-slip structure.
[0015] In an optional embodiment, the staircase further includes a second handrail, which is disposed on both sides of the staircase assembly; one end of the second handrail is detachably connected to one of the staircase assemblies, and the other end of the second handrail is detachably connected to the other staircase assembly.
[0016] In an optional embodiment, one end of the second handrail is inserted into one of the step components, and the other end of the second handrail is inserted into the other step component.
[0017] In an optional embodiment, each of the step assembly further includes a plurality of second plug-in posts, which are disposed on both sides of the step assembly; each of the second plug-in posts has a second slot; one end of the second handrail is inserted into the second slot of one of the step assemblies, and the other end of the second handrail is inserted into the second slot of another step assembly.
[0018] The beneficial effects of this utility model embodiment on the ladder crossing include, for example:
[0019] This ladder consists of two step ladder assemblies and a connecting plate. In use, the two step ladder assemblies are positioned on opposite sides of the speed-increasing line. One end of the connecting plate is movably connected to one of the step ladder assemblies, and the other end is movably connected to the other. The connecting plate can move relative to the step ladder assemblies along the Z-axis. The connecting plate facilitates communication between personnel on both sides of the speed-increasing line, allows for quick crossing of the line, and facilitates equipment maintenance and repair. The Z-axis movement of the connecting plate relative to the step ladder assemblies allows for height adjustment to accommodate speed-increasing lines of various heights, improving versatility. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of a ladder set on a speed-increasing line, provided in an embodiment of the present invention.
[0022] Figure 2 This is a schematic diagram of a ladder spanning an embodiment of the present invention;
[0023] Figure 3 This is an exploded view of the ladder provided in an embodiment of the present invention;
[0024] Figure 4 This is a schematic diagram of the overlapping plate provided in an embodiment of the present utility model;
[0025] Figure 5 This is a schematic diagram of a staircase assembly excluding the first and second handrails provided in an embodiment of the present invention.
[0026] Icons: 1000 - Ladder span; 100 - Ladder assembly; 110 - Ladder body; 111 - Fixing frame; 112 - Ladder board; 1121 - Anti-slip structure; 120 - First handrail; 130 - First plug-in post; 131 - First slot; 140 - Second plug-in post; 141 - Second slot; 200 - Overlap plate; 210 - Overlap plate body; 211 - Mounting hole; 220 - Connecting plate; 221 - Adjustment hole; 300 - Second handrail; 400 - Fastener; 2000 - Speed increase line. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0030] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0032] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0033] The double-speed production line is a widely used production line equipment in the electronics and automotive industries. Its main function is to transport materials via chain drive, characterized by high efficiency, flexibility, and stability. The double-speed production line achieves rapid movement and automatic deceleration and accumulation through friction transmission between the chain and the tooling plate. The chain's operating speed is twice that of the tooling plate, supporting continuous production and high-efficiency operation. In addition, the double-speed production line also has an accumulation function, allowing the tooling plate to temporarily stop on the line to accommodate the different operation times of different processes. However, double-speed lines are typically long, resulting in longer travel times for personnel to communicate between production lines and for equipment maintenance and repair. Therefore, ladders are often used to facilitate communication between personnel on both sides of the double-speed line, allow personnel to quickly cross the line, and facilitate equipment maintenance and repair. However, the height of existing double-speed lines varies depending on the site elevation; therefore, some ladders may not be usable on double-speed lines at certain heights.
[0034] Based on this, please refer to Figure 1 , Figure 2 and Figure 3 The ladder 1000 provided in the embodiments of this utility model can effectively improve the technical problems mentioned above. The ladder 1000 can adjust the height of the overlapping plate 200 according to the height of the speed-multiplying line 2000 to be suitable for speed-multiplying lines 2000 of various heights, thus improving versatility.
[0035] Figure 1 This is a schematic diagram of the ladder 1000 set on the speed-multiplying line 2000 provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the ladder 1000 provided in an embodiment of the present utility model; Figure 3 This is an exploded view of the ladder 1000 provided in an embodiment of the present invention.
[0036] like Figure 1 , Figure 2 and Figure 3As shown, the ladder 1000 provided in the embodiment of this utility model includes two ladder components 100 and an overlapping plate 200. In use, the two ladder components 100 are respectively positioned on both sides of the speed-multiplying line 2000. One end of the overlapping plate 200 is movably connected to one of the ladder components 100, and the other end is movably connected to the other ladder component 100. The overlapping plate 200 can move relative to the ladder components 100 along the Z-axis. By setting the overlapping plate 200, it facilitates production communication between personnel on both sides of the speed-multiplying line 2000, allows personnel to quickly cross the speed-multiplying line 2000, and also facilitates equipment maintenance and repair. The ability of the overlapping plate 200 to move relative to the ladder components 100 along the Z-axis allows the height of the overlapping plate 2000 to be adjusted according to the height of the speed-multiplying line 2000, making it suitable for speed-multiplying lines 2000 of various heights and improving versatility.
[0037] The aforementioned "one end of the overlapping plate 200 is movably connected to one of the step ladder components 100, and the other end of the overlapping plate 200 is movably connected to another step ladder component 100"—for details, please refer to [link to relevant documentation]. Figure 1 , Figure 2 and Figure 3 and combined Figure 4 , Figure 4 This is a schematic diagram of the overlapping plate 200 provided in an embodiment of the present invention. The overlapping plate 200 in this embodiment includes an overlapping plate body 210 and a connecting plate 220, which are vertically connected. The connecting plate 220 has an adjustment hole 221 extending along the Z-axis. The ladder 1000 also includes a fastener 400, which passes through the adjustment hole 221 and the ladder assembly 100 to connect the ladder assembly 100 and the connecting plate 220. The fastener 400 can move within the adjustment hole 221. That is, a connecting plate 220 is provided at each end of the overlapping plate body 210, and the overlapping plate body 210 is movably connected to two ladder assemblies 100 respectively through the two connecting plates 220. By changing the position and height of the fastener 400 within the adjustment hole 221, the height of the overlapping plate 200 relative to the ladder assembly 100 can be changed.
[0038] In addition, to achieve a wider range of height adjustments for the overlap plate 200, please refer to [link / reference needed]. Figures 1-3 and combined Figure 5 , Figure 5 This is a schematic diagram of a staircase assembly 100 excluding the first handrail 120 and the second handrail 300 provided in an embodiment of the present invention. The staircase assembly 100 in this embodiment is provided with a plurality of mounting holes 211, which are spaced apart along the Z-axis direction; a fastener 400 passes through an adjustment hole 221 and any one of the mounting holes 211 to connect the staircase assembly 100 and the connecting plate 220.
[0039] Of course, an adjustment hole 221 extending along the Z-axis can also be provided on the step assembly 100 to enable a movable connection between the connecting plate 220 and the step assembly 100, allowing the overlapping plate 200 to be adjusted in height relative to the step assembly 100 along the Z-axis. Alternatively, adjustment holes 221 extending along the Z-axis can be provided on both the step assembly 100 and the connecting plate 220; this is not limited to this.
[0040] Please see Figures 1-3 In this embodiment, each staircase assembly 100 includes a staircase body 110 and a first handrail 120. The first handrail 120 is provided on both sides of the staircase body 110 and is detachably connected to the staircase body 110. By providing the first handrail 120 on the staircase body 110, the first handrail 120 provides additional support, allowing users to maintain balance when ascending or descending the staircase, reducing the risk of falls or loss of balance, and improving the stability and safety of personnel ascending or descending the staircase body 110. Furthermore, in this embodiment, the first handrail 120 and the staircase body 110 are detachably connected. Because some venues may have limited height, the first handrail 120 can be removed to ensure normal use of the ladder 1000 on the speed-multiplying line 2000. When the upper flow of products on the speed-multiplying line 2000 is high, the first handrail 120 is added to ensure the safety of personnel ascending or descending the staircase body 110.
[0041] Specifically, in this embodiment, the first handrail 120 is plugged into the stair body 110. Each stair assembly 100 also includes a plurality of first plug-in posts 130, which are disposed on both sides of the stair body 110; each first plug-in post 130 has a first slot 131, into which the first handrail 120 is plugged. Of course, the first slot 131 can also be provided on the first handrail 120, and the first plug-in post 130 on the stair assembly 100 cooperates with the first slot 131 on the first handrail 120 to achieve the plugging of the first handrail 120 into the stair body 110. In addition to the plugging-in detachable connection method, the first handrail 120 and the stair body 110 can also adopt other detachable connection methods such as snap-fit connection and threaded connection, which are not limited here.
[0042] To ensure the safety of personnel performing equipment maintenance or repair on the lap plate 200, and to ensure their safety when crossing the double-speed line 2000 on the lap plate 200, please refer to [further details needed]. Figures 1-3 In this embodiment, the staircase 1000 also includes a second handrail 300, which is disposed on both sides of the staircase assembly 100; one end of the second handrail 300 is detachably connected to one of the staircase assemblies 100, and the other end of the second handrail 300 is detachably connected to the other staircase assembly 100.
[0043] Specifically, one end of the second handrail 300 is inserted into one of the step assembly 100, and the other end of the second handrail 300 is inserted into another step assembly 100. Each step assembly 100 also includes a plurality of second insertion posts 140, which are disposed on both sides of the step assembly 100; each second insertion post 140 has a second slot 141; one end of the second handrail 300 is inserted into the second slot 141 of one of the step assemblies 100, and the other end of the second handrail 300 is inserted into the second slot 141 of the other step assembly 100. Of course, a second slot 141 can also be provided on the second handrail 300, and the second insertion post 140 on the step assembly 100 can cooperate with the second slot 141 on the second handrail 300 to realize the insertion of the second handrail 300 into the two step bodies 110. In addition, the second handrail 300 and the stair body 110 can be connected by a plug-in detachable connection, or by other detachable connection methods such as snap-fit connection or threaded connection, which are not limited here.
[0044] Furthermore, the first plug-in post 130 can be designed as a telescopic rod structure, and / or the second plug-in post 140 can be designed as a telescopic rod structure. By designing the first plug-in post 130 or the second plug-in post 140 as a telescopic rod structure, the height of the first handrail 120 or the second handrail 300 in the Z-axis direction can be adjusted, thereby enabling the straddle 1000 in this embodiment to adapt to the speed-multiplying line 2000 in venues of different heights. The first handrail 120 and the second handrail 300 can be separate structures or integrated structures, which is not limited here.
[0045] To further improve the safety of personnel when using the 1000-level elevator, please refer to [link / reference needed]. Figure 5 In this embodiment, the staircase body 110 includes two fixed frames 111 and multiple stair treads 112. The two fixed frames 111 are parallel and spaced apart, and the multiple stair treads 112 are all disposed between the two fixed frames 111. The overlapping plate 200 is movably connected to the fixed frames 111. Each stair tread 112 is provided with an anti-slip structure 1121. Furthermore, the anti-slip structure 1121 can also be provided on the overlapping plate 200.
[0046] Because the speed-increasing line 2000 is relatively long, multiple step ladders 1000 can be installed at intervals along it. Furthermore, to facilitate the movement of the step ladder assembly 100, casters can be installed at the bottom of the mounting frame 111. With the casters, workers can easily move the entire step ladder assembly 100 by gently pushing the mounting frame 111.
[0047] In summary, the ladder 1000 includes two step ladder components 100 and an overlapping plate 200. One end of the overlapping plate 200 is movably connected to one of the step ladder components 100, and the other end is movably connected to the other step ladder component 100. The overlapping plate 200 can move relative to the step ladder components 100 along the Z-axis. In use, the two step ladder components 100 are respectively positioned on both sides of the speed-multiplying line 2000. By setting up the overlapping plate 200, it is convenient for personnel on both sides of the speed-multiplying line 2000 to communicate during production, to quickly cross the speed-multiplying line 2000, and to perform equipment maintenance and repair. The overlapping plate 200 can move relative to the step ladder components 100 along the Z-axis, allowing the height of the overlapping plate 2000 to be adjusted according to the height of the speed-multiplying line 2000, thus adapting to speed-multiplying lines 2000 of various heights and improving versatility.
[0048] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A crossover ladder, characterized in that include: Two staircase components (100); An overlapping plate (200) is provided, one end of which is movably connected to one of the step ladder components (100), and the other end of which is movably connected to another step ladder component (100); the overlapping plate (200) is movable relative to the step ladder component (100) along the Z-axis.
2. The crossover ladder of claim 1, wherein, The overlapping plate (200) includes an overlapping plate body (210) and a connecting plate (220), which are vertically connected. The connecting plate (220) has an adjustment hole (221) extending along the Z-axis. The ladder (1000) also includes a fastener (400), which passes through the adjustment hole (221) and the ladder assembly (100) to connect the connecting plate (220) and the ladder assembly (100). The fastener (400) can move within the adjustment hole (221).
3. The crossover ladder of claim 2, wherein, The stair assembly (100) is provided with a plurality of mounting holes (211), which are spaced apart along the Z-axis direction; the fastener (400) passes through the adjustment hole (221) and any of the mounting holes (211) to connect the connecting plate (220) and the stair assembly (100).
4. The crossover ladder of claim 1, wherein, Each of the staircase assemblies (100) includes a staircase body (110) and a first handrail (120), wherein the first handrail (120) is provided on both sides of the staircase body (110) and the first handrail (120) is detachably connected to the staircase body (110).
5. The crossover ladder of claim 4, wherein, The first handrail (120) is inserted into the stair body (110).
6. The crossover ladder of claim 5, wherein, Each of the step assembly (100) further includes a plurality of first plug-in posts (130), which are disposed on both sides of the step body (110); each of the first plug-in posts (130) is provided with a first slot (131), and the first handrail (120) is inserted into the first slot (131).
7. The crossover ladder of claim 4, wherein, The staircase body (110) includes two fixed frames (111) and multiple stair treads (112). The two fixed frames (111) are parallel and spaced apart, and the multiple stair treads (112) are all disposed between the two fixed frames (111). The overlapping plate (200) is movably connected to the fixed frame (111). Each stair tread (112) is provided with an anti-slip structure (1121).
8. The crossover ladder of any of claims 1-7, wherein, The staircase (1000) further includes a second handrail (300), which is disposed on both sides of the staircase assembly (100); one end of the second handrail (300) is detachably connected to one of the staircase assemblies (100), and the other end of the second handrail (300) is detachably connected to the other staircase assembly (100).
9. The crossover ladder of claim 8, wherein, One end of the second handrail (300) is inserted into one of the step assembly (100), and the other end of the second handrail (300) is inserted into another step assembly (100).
10. The crossover ladder of claim 9, wherein, Each of the step assembly (100) further includes a plurality of second plug-in posts (140), which are disposed on both sides of the step assembly (100); each of the second plug-in posts (140) is provided with a second slot (141); one end of the second handrail (300) is inserted into the second slot (141) of one of the step assemblies (100), and the other end of the second handrail (300) is inserted into the second slot (141) of another step assembly (100).