Folding climbing mechanism
By designing a foldable climbing mechanism, the problems of complex structure, heavy weight, and large space occupation of traditional climbing mechanisms are solved, enabling rapid deployment and retraction, and improving the efficiency of the robot's exit from the cabin and the space utilization rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional climbing mechanisms are complex in structure, large in size and weight, take up a lot of space when stored in the vehicle, and are inconvenient to deploy and retract, making it difficult to meet the needs of robots to quickly leave the vehicle to perform tasks.
A foldable climbing mechanism was designed, including a mounting platform, a climbing plate, and a support column. The folded climbing plate is stored in a C-shaped track. The climbing plate serves as a passage for the robot to get on and off. The support column is used for fixing and supporting, enabling rapid unfolding and retraction.
It enables the rapid unfolding and retraction of the ramp, reduces weight, enhances load-bearing capacity, reduces the volume after folding, facilitates storage, and improves usage efficiency and space utilization.
Smart Images

Figure CN223982447U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of special vehicle modification technology, specifically relating to a folding climbing mechanism applied to a work robot transport vehicle. Background Technology
[0002] To facilitate the unloading and loading of robots from the transport vehicle, the vehicle needs to be equipped with a climbing mechanism to create a ramp for the robots. Traditional climbing mechanisms are relatively simple, typically consisting of a single, integral ramp plate. During operation, it is pulled directly out of the vehicle from the rear along an internal track, with the end furthest from the vehicle placed on the ground to form the ramp. While ensuring functionality and load-bearing capacity, these traditional integral ramp plates have drawbacks such as large size, heavy weight, large space requirements when stored in the vehicle, and inconvenient deployment and retrieval. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] This invention proposes a simple and easy-to-use folding ramp mechanism to enable the ramp board to be quickly unfolded and retracted, thereby enhancing load-bearing capacity, reducing its own weight, reducing its volume after folding, and facilitating storage.
[0005] (II) Technical Solution
[0006] To address the aforementioned technical problems, this utility model proposes a folding climbing mechanism, which includes a mounting platform, a climbing plate, and supporting columns. The mounting platform is installed inside the transport vehicle, and a transport robot is loaded via a load-bearing platform located at the top. The folded climbing plate is stored via internal tracks. The climbing plate serves as the boarding and alighting passage for the robot to enter and exit the vehicle. The supporting columns are used to fix and support the unfolded climbing plate and also serve as guardrails for the boarding and alighting passage.
[0007] Furthermore, the platform includes a main frame, a load-bearing platform, tracks, and hooks. The load-bearing platform for loading and transporting the robot is mounted on the top of the main frame. The rear end of the load-bearing platform is equipped with hooks for securing the folded ramp plate. Two tracks are installed on the left and right sides inside the main frame and below the load-bearing platform. The space between the two tracks is used to store the folded ramp plate. The front end of the two tracks is equipped with baffles, and the rear end is equipped with limit components. The bearings in the ramp plate can slide back and forth on the tracks.
[0008] Furthermore, the main frame is assembled and welded from profiles.
[0009] Furthermore, fixed bases are provided at the front end and the left and right outer sides of the main frame, and bolts can be used to fix the mounting platform to the floor of the carriage.
[0010] Furthermore, the track adopts a C-shaped track.
[0011] Furthermore, the ramp plate includes an upper ramp plate, a hinge, a lower ramp plate, a latch, bearings, a fixing shaft, and a locking nut. The rear end of the upper ramp plate is connected to the front end of the lower ramp plate via a hinge, forming a mid-flip structure. The upper ramp plate has round holes on both sides of its front end frame, and two bearings are installed at these holes via the fixing shaft and locking nut, allowing the bearings to slide back and forth on the platform's track. The lower ramp plate has a latch installed at the front end of its rear frame for securing it to the platform's hook after folding. Both the upper and lower ramp plates have pin holes near the hinge for engaging with the safety pins of the support columns.
[0012] Furthermore, the frame material of the upper and lower ramps is made of lightweight alloy profiles, and the surface is made of anti-slip material.
[0013] Furthermore, anti-collision limiting rubber blocks are installed on the back of the frame of the upper ramp plate, serving as support and limiting points at the contact points with the carriage.
[0014] Furthermore, the support columns consist of two symmetrical columns; each support column includes a vertical rib, a diagonal rib, a guardrail, a locking slot, and a safety pin; wherein, the vertical rib, diagonal rib, and guardrail together form a triangular structure, the locking slot is fixed to the vertical rib and diagonal rib and is located on the inner side of the triangular structure and on the lower side of the guardrail, and the locking slot has a fixing hole for the safety pin; after the ramp is unfolded, the locking slots of the two support columns respectively lock the ramp from the left and right sides to fix the ramp; the safety pin is inserted into the fixing hole on the locking slot and the pin hole on the ramp to lock it.
[0015] Furthermore, the guardrail is equipped with hanging ears, and the safety pin is connected to the hanging ears via an anti-loss steel wire rope.
[0016] (III) Beneficial Effects
[0017] This invention proposes a foldable climbing mechanism, comprising a mounting platform, climbing plates, and supporting columns. The mounting platform is typically installed inside a transport vehicle, and a transport robot is loaded onto a load-bearing platform located at the top. The folded climbing plates are stored via C-shaped tracks inside the vehicle. The climbing plates serve as the robot's access route for entering and exiting the vehicle. The supporting columns secure and support the unfolded climbing plates and also act as guardrails for the access route. This foldable climbing mechanism is lightweight, has a high load-bearing capacity, high stability, occupies little storage space, is easy to unfold and fold, simple to operate, and has a wide range of applications. It can be quickly expanded to form a robot access route, improving efficiency and space utilization. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the folding climbing mechanism of this utility model in its unfolded state.
[0019] Figure 2 This is a schematic diagram of the overall structure of the folding climbing mechanism of this utility model in its folded state;
[0020] Figure 3 This is a schematic diagram of the platform structure in this invention;
[0021] Figure 4 This is a partial schematic diagram of the ramp structure in this invention;
[0022] Figure 5 This is a schematic diagram of the bearing and C-shaped track combination in this invention;
[0023] Figure 6 This is a schematic diagram of the supporting column structure in this invention.
[0024] In the diagram: 1—mounting platform, 2—climbing plate, 3—supporting column; 1-1—main frame, 1-2—load-bearing platform, 1-3—C-shaped track, 1-4—hook, 1-5—fixed base; 2-1—upper climbing plate, 2-2—long row of hinges, 2-3—lower climbing plate, 2-4—fastener, 2-5—anti-collision limiting rubber block, 2-6—bearing, 2-7—fixed shaft, 2-8—locking nut; 3-1—vertical rib, 3-2—diagonal rib, 3-3—guardrail, 3-4—slot, 3-5—safety pin. Detailed Implementation
[0025] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0026] This embodiment proposes a foldable climbing mechanism, the overall structure of which is as follows: Figure 1 and 2 As shown, the system mainly includes a mounting platform 1, a ramp 2, and supporting columns 3. The mounting platform 1 is typically installed inside the transport vehicle. The transport robot is loaded via a load-bearing platform located at the top, and the folded ramp 2 is stored via C-shaped tracks inside. The ramp 2 serves as the loading and unloading passage for the robot to enter and exit the vehicle. The supporting columns 3 are used to secure and support the ramp 2 in its unfolded state, and also serve as guardrails for the loading and unloading passage.
[0027] like Figure 3As shown, the mounting platform 1 includes a main frame 1-1, a load-bearing platform 1-2, C-shaped rails 1-3, hooks 1-4, and fixed bases 1-5. The main frame 1-1 is welded from profiles. Fixed bases 1-5 are located at the front end and the outer sides of the left and right ends of the main frame 1-1, allowing the mounting platform 1 to be fixedly connected to the vehicle floor using bolts. The load-bearing platform 1-2 for loading and transporting the robot is mounted on top of the main frame 1-1. Two hooks 1-4 are located at the rear end of the load-bearing platform 1-2 to secure the folded ramp plate 2, ensuring stability and reliability during transport. Two C-shaped rails 1-3 are installed inside the main frame 1-1 on the left and right sides, below the load-bearing platform 1-2. The space between the two C-shaped rails 1-3 is used to store the folded ramp plate 2. Baffles are located at the front end of the two C-shaped rails 1-3, and limit components are located at the rear end. The bearings 2-6 in the ramp plate 2 can slide back and forth on the C-shaped rails 1-3.
[0028] like Figure 4 As shown, the climbing plate 2 includes an upper climbing plate 2-1, a long row of hinges 2-2, a lower climbing plate 2-3, a buckle 2-4, an anti-collision limiting rubber block 2-5, a bearing 2-6, a fixed shaft 2-7, and a locking nut 2-8. The frames of the upper climbing plate 2-1 and the lower climbing plate 2-3 are made of lightweight alloy profiles with a non-slip surface. The rear end of the upper climbing plate 2-1 is connected to the front end of the lower climbing plate 2-3 via the long row of hinges 2-2, forming a middle flip structure. The front end of the upper climbing plate 2-1 has round holes on both sides. Two bearings 2-6 are installed in the two round holes via the fixed shaft 2-7 and the locking nut 2-8, allowing the bearings 2-6 to slide back and forth in the C-shaped track 1-3. Figure 5 As shown. Two anti-collision limiting rubber blocks 2-5 are symmetrically installed on the left and right sides of the front rear of the frame of the upper ramp plate 2-1, serving as support and limiting points at the contact point with the carriage. Two buckles 2-4 are symmetrically installed on the left and right sides of the front rear of the frame of the lower ramp plate 2-3, used to secure it to the two hooks 1-4 of the mounting platform 1 after folding. Both the upper ramp plate 2-1 and the lower ramp plate 2-3 have two pin holes on each side near the end of the long row hinge 2-2, used to engage with the safety pins 3-5 of the support column 3.
[0029] The supporting columns 3 consist of two symmetrical columns, one on the left and one on the right. For example... Figure 6As shown, each support column 3 includes a vertical rib 3-1, a diagonal rib 3-2, a guardrail 3-3, a slot 3-4, and a safety pin 3-5. The vertical rib 3-1, diagonal rib 3-2, and guardrail 3-3 are welded together to form a triangular structure. The slot 3-4 is welded and lapped onto the vertical rib 3-1 and diagonal rib 3-2, located inside the triangular structure and below the guardrail 3-3. The slot 3-4 has a fixing hole for the safety pin 3-5. The guardrail 3-3 has a lug for an anti-loss steel wire rope, and the safety pin 3-5 is connected to the lug via the anti-loss steel wire rope. After the upper ramp plate 2-1 and lower ramp plate 2-3 are unfolded, the slots 3-4 of the two support columns 3 respectively engage the central flip structure of the ramp plate 2 from the left and right sides, thus securing the ramp plate 2. The safety pin 3-5 is inserted into the fixing hole on the card slot 3-4, and the pin holes of the upper climbing plate 2-1 and the lower climbing plate 2-3, forming a stable and reliable climbing channel.
[0030] When the foldable climbing mechanism of the present invention is in the folded storage state, the upper climbing plate 2-1 and the lower climbing plate 2-3 overlap and are stored in the space between the two C-shaped guide rails 1-3 at the bottom of the mounting platform 1. They are fixed by two buckles 2-4 on the back of the front end of the lower climbing plate 2-3 and two hooks 1-4 at the rear end of the load-bearing platform 1-2 to ensure that the transportation process is stable and reliable. After the support column 3 is retracted, it is fixed on the top surface of the load-bearing platform 1-2.
[0031] When the folding climbing mechanism of this invention is unfolded, the two buckles 2-4 are first separated from the hooks 1-4, and the overlapping upper climbing plate 2-1 and lower climbing plate 2-3 are pulled outward along the C-shaped guide rail 1-3. Then, it is flipped 180° backward so that the lower climbing plate 2-3 is placed on the ground. Then, the support column 3 is installed to form a climbing channel. The work robot walks from the mounting platform along the ramp out of the cabin and travels to the ground to perform its work task. The reverse operation process is the work robot entering the cabin after performing its task and the folding and retraction process of the climbing mechanism.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A foldable hill climbing mechanism, characterized by, The folding climbing mechanism comprises a carrying platform, a climbing plate and a supporting column; the carrying platform is installed in the transport compartment, the transport operation robot is loaded through the load-bearing platform at the top, and the folded climbing plate is stored through the tracks arranged inside; the climbing plate serves as a boarding and alighting passage for the robot to enter and exit the cabin; the supporting column is used for fixing and supporting the unfolded climbing plate and simultaneously serves as a guardrail of the boarding and alighting passage.
2. The foldable hill climbing mechanism of claim 1, wherein, The carrying platform comprises a main frame, a load-bearing platform, tracks and a hook; the load-bearing platform for loading the transport operation robot is installed at the top of the main frame, the rear end of the load-bearing platform is provided with a hook for fixing the folded climbing plate; two tracks are installed at the left and right sides inside the main frame and below the load-bearing platform, and the space between the two tracks is used for storing the folded climbing plate; the front end of each track is provided with a baffle, and the rear end is provided with a limiting part; the bearing in the climbing plate can slide forward and backward on the track.
3. The foldable hill climbing mechanism of claim 2, wherein, The main frame is composed of profiled sections.
4. The foldable hill climbing mechanism of claim 2, wherein, The front end and the left and right outer sides of the main frame are respectively provided with fixed bases, and the carrying platform and the compartment floor can be fixedly connected through the fixed bases by using bolts.
5. The foldable hill climbing mechanism of claim 2, wherein, The track adopts a C-shaped track.
6. The foldable hill climbing mechanism of claim 1, wherein, The climbing plate comprises an upper end climbing plate, a hinge, a lower end climbing plate, a buckle, a bearing, a fixing shaft and a locking nut; the rear end of the upper end climbing plate is connected with the front end of the lower end climbing plate through the hinge to form a middle turnover structure; the front end of the frame of the upper end climbing plate is respectively provided with a round hole at the left and right sides, and the two bearings are respectively installed at the two round holes through the fixing shaft and the locking nut, and the bearings can slide forward and backward in the tracks of the carrying platform; the buckle is installed at the front end of the back of the frame of the lower end climbing plate for fixing with the hook of the carrying platform after folding; the upper end climbing plate and the lower end climbing plate are respectively provided with a latch hole at one end close to the hinge for cooperating with the safety latch of the supporting column.
7. The foldable hill climbing mechanism of claim 6, wherein, The frame material of the upper end climbing plate and the lower end climbing plate is a lightweight alloy profile, and the surface is an anti-skid material.
8. The foldable hill climbing mechanism of claim 6, wherein, The back of the frame of the upper end climbing plate is provided with an anti-collision limiting rubber block as a supporting point and a limiting point at the contact position with the compartment.
9. The foldable hill climbing mechanism of claim 1, wherein, The supporting column comprises two left and right symmetrical columns; each supporting column comprises a vertical rib, an inclined rib, a guardrail, a clamping groove and a safety latch; the vertical rib, the inclined rib and the guardrail jointly form a triangular structure, the clamping groove is fixed on the vertical rib and the inclined rib and located inside the triangular structure and below the guardrail, and the clamping groove is provided with a fixing hole of the safety latch; after the climbing plate is unfolded, the clamping grooves of the two supporting columns clamp the climbing plate from the left and right sides to fix the climbing plate; the safety latch is inserted into the fixing hole of the clamping groove and the latch hole of the climbing plate to be locked.
10. The foldable hill climbing mechanism of claim 9, wherein, The guardrail is provided with a hanging ear, and the safety latch is connected to the hanging ear through a loss-preventing steel wire.