Novel folding springboard
By designing a hinged plate and sliding rod, the inconvenience and safety issues of existing foldable ramps are solved, enabling safe locking and convenient unlocking, and enhancing stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHUA SHENGLI TOOL MFG CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-01
AI Technical Summary
The existing folding structure of foldable ramps is not optimized enough, and the pins are easily lost or fall off, resulting in inconvenience and insufficient safety.
The system employs a first and second plate that are hinged together. Through the design of a sliding rod and elastic element, the sliding rod can be engaged or disengaged in the slot to achieve the flipping, locking, and unlocking of the plate. Combined with the design of a parallel structure and abutment piece, the stability and safety are enhanced.
It achieves safe locking and convenient unlocking in the unfolded state, reduces material deformation, improves resistance to deformation and service life, and enhances overall stability.
Smart Images

Figure CN224187891U_ABST
Abstract
Description
A new type of folding springboard Technical Field
[0001] This utility model relates to a springboard, and more particularly to a novel folding springboard. Background Technology
[0002] When there is a gap (horizontal or vertical) between two platforms, scaffolding planks are used to facilitate the transfer of personnel or equipment between them. The earliest scaffolding planks had a relatively simple structure, consisting of a single, high-strength board. However, this resulted in large scaffolding planks being quite bulky, making them difficult to store and transport. Therefore, foldable scaffolding planks began to appear on the market. For example, one foldable scaffolding plank (CN206719485U) has been disclosed, comprising: a scaffolding body; the scaffolding body includes: an upper scaffolding plank and a lower scaffolding plank; the lower ends of the two supports of the upper scaffolding plank are hinged to the upper ends of the two supports of the lower scaffolding plank; the lowest step of the upper scaffolding plank and the highest step of the lower scaffolding plank are in contact; symmetrical pin holes are provided on the lowest and highest steps of the upper and lower scaffolding planks; pins are installed in the pin holes; the pins pass through the pin holes of the lowest and highest steps of the upper and lower scaffolding planks to fix the upper and lower scaffolding planks together. The above method allows the plank to be foldable, making it easy to transport and store. However, in actual use, because the upper and lower planks need to be secured with pins, there is a possibility that the pins may be lost. Furthermore, the insertion and removal of the pins also requires a locking mechanism; otherwise, the pins can easily fall off due to vibration during use, and the locking mechanism makes the pin removal and installation process cumbersome. Summary of the Invention
[0003] This invention provides a novel folding plank, addressing the problem that the folding structure of existing foldable planks is not optimized enough.
[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a novel folding plank includes a first plate and a second plate that are hinged to each other. Two connecting plates are fixedly extended from both ends of the first plate. The second plate is rotatably connected to the two connecting plates. Two slots are mirror-imagely provided on the two connecting plates. The second plate is provided with at least two sliding grooves. A sliding rod is slidably provided in each of the sliding grooves. The length direction of the sliding rod is perpendicular to the length direction of the second plate. An elastic element connected to the sliding rod is provided on the second plate, so that the sliding rod always tends to slide towards the first plate. When the first plate and the second plate are flipped to a flat state, both ends of the sliding rod are simultaneously engaged in the two slots. When the sliding rod is manually moved to disengage from the slots, the first plate and the second plate can be flipped and folded together.
[0005] In this invention, the sliding rod is always positioned at one end of the groove due to the restoring effect of the elastic element. In this state, the first and second plates flip relative to each other, and the sliding rod interferes with the connecting plate, preventing further flipping. It can only be flipped freely by manually pushing the sliding rod to move it away from the connecting plate. This characteristic allows the invention to be locked in a fully unfolded state, making it safer to use. Furthermore, the unlocking method by pressing the sliding rod is very convenient and reliable.
[0006] When the present invention is under pressure in its unfolded state, the first plate and the second plate tend to flip upwards. At this time, the contact area between the first plate and the second plate will begin to play an anti-flipping effect. At the same time, the slide rod will also abut against one side of the slide groove. Therefore, when the present invention is under actual pressure, multiple structures participate in the force, which helps to reduce the material deformation caused by excessive local force and increases the overall resistance to deformation and stability.
[0007] Furthermore, the first plate body is composed of a first bearing plate and two first side plates, and the two connecting plates are fixed to the two first side plates; the second plate body is composed of a second bearing plate and two second side plates, and the two sliding grooves are provided on the two second side plates; both the two first side plates and the two second side plates are provided with connecting holes. Through the above technical solution, this utility model can realize parallel connection, that is, two sets of folding planks can be connected in parallel with each other, and then fixedly connected by bolts through the connecting holes, which can increase the overall width of the planks.
[0008] Furthermore, the rotation axes of the first and second plates are not within the width range of the first and second side plates. The farther the rotation axis is from the upper surface of the two bearing plates, the longer the torque, and the smaller the contact pressure at the contact point when the present invention is actually subjected to pressure.
[0009] Furthermore, the inner end face of the first bearing plate is provided with a first abutment piece, and the inner end face of the second bearing plate is provided with a second abutment piece; when the first plate and the second plate are flipped to a flat state, the first abutment piece and the second abutment piece abut against each other. The first abutment piece and the second abutment piece have a large contact area, which can reduce the pressure at the abutment part, thereby enhancing the overall resistance to deformation and helping to extend the service life.
[0010] Furthermore, the distribution direction of the slots is parallel to the length direction of the first plate. A first limiting wall is formed on one side of the slot, and a second limiting wall is formed on the other side. The second limiting wall is farther from the rotation axis than the first limiting wall, and its length covers the length of the slide groove. The length of the first limiting wall is shorter than that of the second limiting wall. In the load-bearing state of this invention, the second limiting wall abuts against the slide rod. Therefore, the second limiting wall needs to cover the length of the slide groove. Even if the slide rod is displaced in use, the second limiting wall can always maintain abutment against the slide rod. The shorter length of the first limiting wall prevents the slide rod from falling out of the slot. At the same time, during the unfolding process of this invention, after the slide rod contacts the connecting plate near the first limiting wall, it can retract autonomously and automatically lock into the slot, making the unfolding process more convenient without manually pushing the slide rod.
[0011] Therefore, this utility model has the following characteristics compared with the prior art:
[0012] 1. When the first plate and the second plate are flipped to a flat state, both ends of the slide rod are simultaneously engaged in the two slots. When the slide rod is manually moved to disengage from the slots, the first plate and the second plate can be flipped and folded together, making it safer to use. At the same time, the operation method of unlocking by pressing the slide rod is also very convenient and reliable.
[0013] 2. When the present invention is subjected to actual pressure, multiple structures participate in the stress, which helps to reduce the material deformation caused by excessive local stress and increases the overall resistance to deformation and stability. Attached Figure Description
[0014] Figure 1 is a schematic diagram of the structure of this utility model when unfolded;
[0015] Figure 2 is a partial structural schematic diagram of the present invention when unfolded;
[0016] Figure 3 is a partial side view of the present invention when unfolded;
[0017] Figure 4 is a partial side view of the present invention when it is flipped over;
[0018] Figure 5 is a parallel connection diagram of the two parts of this utility model. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0021] Example 1: As shown in Figures 1, 2, and 3, a novel folding plank includes a first plate 100 and a second plate 200 hinged together. The first plate consists of a first support plate 110 and two first side plates 120, with two connecting plates 10 fixedly extending from the ends of the two first side plates. The second plate consists of a second support plate 210 and two second side plates 220, with two sliding grooves 20 on the two second side plates. The second plate is rotatably connected to the two connecting plates, with two slots 50 mirror-imaged on the two connecting plates. A sliding rod 30 is slidably mounted in the sliding groove, with the length direction of the sliding rod perpendicular to the length direction of the second plate. An elastic element connected to the sliding rod is provided on the second plate, causing the sliding rod to always tend to slide towards the first plate. When the first and second plates are flipped to a flat state, both ends of the sliding rod simultaneously engage with the two slots. When the sliding rod is manually moved to disengage from the slots, the first and second plates can be flipped and folded together.
[0022] In this embodiment, due to the restoring effect of the elastic element, the slide bar is always at one end of the groove. In this state, the first and second plates flip relative to each other, and the slide bar interferes with the connecting plate, preventing further flipping. Only by manually pushing the slide bar to move it away from the connecting plate can it flip freely. This characteristic allows this embodiment to be locked in a fully unfolded state, making it safer to use. Furthermore, the unlocking method by pressing the slide bar is very convenient and reliable.
[0023] In this embodiment, when the first and second plates are compressed in the unfolded state, they tend to flip upwards. At this time, the contact area between the first and second plates will begin to play an anti-flipping role. At the same time, the slide rod will also abut against one side of the slide groove. Therefore, in this embodiment, multiple structures participate in the force when actually compressed, which helps to reduce the material deformation caused by excessive local force and increases the overall resistance to deformation and stability.
[0024] As shown in Figures 1 and 5, connecting holes 40 are provided on both first side plates and both second side plates. Through the above technical solution, this embodiment can achieve parallel connection, that is, two sets of folding planks can be connected in parallel and then fixedly connected by bolts through the connecting holes, which can increase the overall width of the planks.
[0025] As shown in Figure 3, the rotation axes of the first and second plates are not within the width range of the first and second side plates. The farther the rotation axis is from the upper surface of the two bearing plates, the longer the torque. In this embodiment, the contact pressure at the contact point is smaller when under actual pressure.
[0026] As shown in Figures 2 and 4, the inner end face of the first bearing plate is provided with a first abutting piece 111, and the inner end face of the second bearing plate is provided with a second abutting piece 211. When the first and second plates are flipped to a flat state, the first and second abutting pieces abut against each other. The first and second abutting pieces have a large contact area, which can reduce the pressure at the abutting part, thereby enhancing the overall resistance to deformation and helping to extend the service life.
[0027] Referring to Figures 3 and 4, the distribution direction of the slots is parallel to the length direction of the first plate. A first limiting wall 51 is formed on one side of the slot, and a second limiting wall 52 is formed on the other side. The second limiting wall is farther from the rotation axis than the first limiting wall, and its length covers the length of the slide groove. The length of the first limiting wall is shorter than that of the second limiting wall. In the load-bearing state of this embodiment, the second limiting wall abuts against the slide rod. Therefore, the second limiting wall needs to cover the length of the slide groove. Even if the slide rod is displaced in use, the second limiting wall can always maintain abutment against the slide rod. The shorter length of the first limiting wall prevents the slide rod from coming out of the slot. At the same time, during the unfolding process of this embodiment, after the slide rod contacts the connecting plate near the first limiting wall, it can retract autonomously and automatically lock into the slot, making the unfolding process more convenient without manually pushing the slide rod.
[0028] As shown in Figure 1, the first and second bearing plates are provided with several anti-slip protrusions 60.
[0029] As shown in Figure 1, handles 70 are also provided on the outer surfaces of the first and second side panels.
[0030] As shown in Figure 2, two mounting pieces 80 are fixedly mirrored on the inner surfaces of the two second side plates. Two guide rods 81 are slidably inserted through the two mounting pieces. Springs 82 are sleeved on the guide rods. The other end of the guide rods is vertically fixedly connected to the slide rod. The springs constitute elastic elements.
[0031] As shown in Figure 1, the outer end of the first bearing plate is fixedly connected to an overlapping plate 90, and the outer end of the second side plate is set with a pointed tip.
[0032] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.
Claims
1. A novel folding plank, comprising a first plate and a second plate hinged together, characterized in that: Two connecting plates are fixedly extended from both ends of the first plate. The second plate is rotatably connected to the two connecting plates. Two slots are mirror-imagely provided on the two connecting plates. The second plate is provided with at least two sliding grooves. A sliding rod is slidably provided in each of the sliding grooves. The length direction of the sliding rod is perpendicular to the length direction of the second plate. An elastic element connected to the sliding rod is provided on the second plate, so that the sliding rod always tends to slide towards the first plate. When the first plate and the second plate are flipped to a flat state, both ends of the sliding rod are simultaneously engaged in the two slots. When the sliding rod is manually moved to disengage from the slots, the first plate and the second plate can be flipped and folded together.
2. The novel folding plank according to claim 1, characterized in that: The first plate is composed of a first bearing plate and two first side plates, and the two connecting plates are fixed on the two first side plates; the second plate is composed of a second bearing plate and two second side plates, and the two sliding grooves are provided on the two second side plates; both the two first side plates and the two second side plates are provided with connecting holes.
3. The novel folding plank according to claim 2, characterized in that: The rotation axes of the first plate and the second plate are not within the width range of the first side plate and the second side plate.
4. The novel folding plank according to claim 3, characterized in that: The inner end face of the first bearing plate is provided with a first abutting piece, and the inner end face of the second bearing plate is provided with a second abutting piece; when the first plate and the second plate are flipped to a flat state, the first abutting piece and the second abutting piece abut against each other.
5. The novel folding plank according to claim 3, characterized in that: The distribution direction of the slots is parallel to the length direction of the first plate. A first limiting wall is formed on one side of the slots, and a second limiting wall is formed on the other side. The second limiting wall is farther from the rotation axis than the first limiting wall. The length of the second limiting wall covers the length of the slide groove, and the length of the first limiting wall is shorter than the second limiting wall.
6. The novel folding plank according to claim 2, characterized in that: The first and second support plates are provided with a number of anti-slip protrusions.
7. The novel folding plank according to claim 2, characterized in that: Handles are also provided on the outer surfaces of the first side plate and the second side plate.
8. The novel folding plank according to claim 2, characterized in that: Two mounting pieces are fixedly mirrored on the inner surfaces of the two second side plates. Two guide rods are slidably inserted through the two mounting pieces. Springs are sleeved on the guide rods. The other end of the guide rods is perpendicularly and fixedly connected to the slide rod. The springs constitute elastic elements.
9. The novel folding plank according to claim 2, characterized in that: The outer end of the first bearing plate is fixedly connected to an overlapping plate, and the outer end of the second side plate is cut off.
Citation Information
Patent Citations
Collapsible springboard
CN206719485U