Hinged flap for scaffolding

Abstract

The utility model relates to the technical field of scaffold for building construction, specifically is a hinge type flap for scaffold, through setting up the reversible plane board on the side of the scaffold close to the building, effectively fills the gap between the scaffold and the building, fundamentally eliminates the safety hidden danger that the construction personnel is in the gap place to tread empty or falls the article, its unique hinge sheet metal part design, especially two opposite bending edges, can accurately abut against the scaffold and the plane board when the plane board is horizontally unfolded, plays the role of limiting and bearing support, ensures the stability and flatness of the work platform, simultaneously, the turnover function perfectly adapts the demand of stripping process, realizes the unity of safety protection and construction convenience.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology for building construction, specifically a hinged flap for scaffolding. Background Technology

[0002] Scaffolding is a temporary construction tool erected on construction sites to facilitate worker operations and vertical and horizontal transportation. It is primarily used for exterior walls, interior decoration, or in areas with high ceilings where direct construction is impossible. During construction, demolding is required, necessitating a certain distance between the scaffolding and the building structure to facilitate this process. However, this distance is typically around 40cm, posing a safety hazard to construction workers. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a hinged flap for scaffolding to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hinged flap for scaffolding includes a hinge sheet metal component and a flat panel. The flat panel is rotatably mounted on the horizontal side of the scaffolding near the work position when in use, via the hinge sheet metal component. The hinge sheet metal component includes a pivot and two hinge pieces. One end of each of the two hinge pieces is respectively fitted onto the pivot to form a hinge, and the other end of each of the two hinge pieces has a bent edge extending in opposite directions. The bending length of the bent edge is adapted to the diameter of the pivot. When the flat panel and the work surface of the scaffolding are on the same horizontal plane, the two bent edges respectively abut against the scaffolding and the flat panel.

[0005] Preferably, it further includes a strip-shaped hollow rectangular tube, which is horizontally locked to the horizontal side of the scaffold near the construction position when it is in use. One of the two hinges is locked to the hollow rectangular tube with its bent edge facing the flat plate, and the other of the two hinges is locked to an extension wall located on one side of the flat plate with its bent edge facing the hollow rectangular tube.

[0006] Preferably, a buffer layer is provided at the contact position between the hollow rectangular tube and the bent edge of the hinge piece, and a buffer layer is provided at the contact position between the flat plate and the bent edge of the hinge piece.

[0007] Preferably, the width of the hollow rectangular tube is not less than the distance from the hinge point to the bent edge of the hinge piece.

[0008] Preferably, the bent edge is perpendicular to the hinge piece.

[0009] Preferably, the hinge plate has mounting holes located near the bent edge. The screw passes through the mounting holes on the hinge plate and the hollow rectangular tube and is threaded to the nut. Alternatively, the screw passes through the mounting holes on the hinge plate and the mounting holes on the flat panel and is threaded to the nut.

[0010] Preferably, the flat panel is rotatably mounted on the scaffolding via at least two hinged sheet metal parts.

[0011] Preferably, the flat plate has a vertically upward-extending strip-shaped guard edge on the side away from the hinge sheet metal part.

[0012] The beneficial effects of this utility model are: This utility model provides a hinged flip-up platform for scaffolding. By setting a flip-up flat plate on the side of the scaffolding closest to the building, it effectively fills the gap between the scaffolding and the building, fundamentally eliminating the safety hazards of workers stepping into gaps or falling objects. Its unique hinge sheet metal design, especially the two opposing bent edges, precisely abuts against the scaffolding and the flat plate when it is horizontally unfolded, providing limiting and load-bearing support, ensuring the stability and flatness of the working platform. At the same time, the flip-up function perfectly adapts to the needs of demolding processes, achieving a balance between safety protection and construction convenience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a hinged flap for scaffolding during demolding in a building, according to the present invention. Figure 2 This is a schematic diagram of the structure of a hinged flap for scaffolding during building construction according to the present invention; Figure 3 This is a structural schematic diagram of the hinge sheet metal part of this utility model; Figure 4 This is a schematic diagram of the hinge sheet metal part of this utility model when closed; Figure 5 This is a schematic diagram of the hinge sheet metal part of this utility model when it is opened; Figure 6 This is a side view of the hinge piece of this utility model; Figure 7 This is a front view of the hinge piece of this utility model; Figure 8 This is a top view of the planar plate of this utility model; Figure 9 This is a side view of the planar plate of this utility model; Figure 10 This is a front view of the hollow rectangular tube of this utility model; Figure 11This is a side view of the hollow rectangular tube of this utility model; Label Explanation: 1. Flat panel; 11. Strip edge; 12. Extended wall; 2. Hinges (sheet metal parts); 21. Shafts; 22. Hinge plates; 23. Bent edges; 3. Scaffolding; 4. Hollow rectangular tube. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: See Figures 1 to 11 This utility model provides a hinged flip-up panel for scaffolding, comprising a hinge sheet metal part and a flat panel. The flat panel is rotatably installed on the horizontal side of the scaffolding near the work position when it is in use, via the hinge sheet metal part. The hinge sheet metal part includes a pivot and two hinge pieces. One end of each of the two hinge pieces is respectively fitted onto the pivot to form a hinge, and the other end of each of the two hinge pieces has a bent edge extending in opposite directions. The bending length of the bent edge is adapted to the diameter of the pivot. When the flat panel and the work platform of the scaffolding are on the same horizontal plane, the two bent edges respectively abut against the scaffolding and the flat panel.

[0015] The beneficial effects of this utility model are: This utility model provides a hinged flip-up scaffolding platform. By setting a flip-up flat plate on the side of the scaffolding closest to the building, it effectively fills the gap between the scaffolding and the building, fundamentally eliminating the safety hazards of workers stepping into gaps or falling objects. Its unique hinge sheet metal design, especially the two opposing bent edges, precisely abuts against the scaffolding and the flat plate when it is horizontally unfolded, providing limiting and load-bearing support, ensuring the stability and flatness of the working platform. At the same time, the flip-up function perfectly adapts to the needs of demolding processes, achieving a balance between safety protection and construction convenience.

[0016] The working principle is as follows: During normal construction, the flat panel is placed horizontally between the scaffolding and the building, thus bridging the gap between them and reducing potential safety hazards. When demolding is required, the flat panel is flipped upwards to make it perpendicular to the scaffolding, leaving space for demolding. After demolding, it is returned to a horizontal position, making the operation simple.

[0017] Preferably, it further includes a strip-shaped hollow rectangular tube, which is horizontally locked to the horizontal side of the scaffold near the construction position when it is in use. One of the two hinges is locked to the hollow rectangular tube with its bent edge facing the flat plate, and the other of the two hinges is locked to an extension wall located on one side of the flat plate with its bent edge facing the hollow rectangular tube.

[0018] As described above, adding hollow rectangular tubes as the connection base between the hinges and the scaffolding offers multiple benefits. First, it distributes the concentrated load of the hinges onto the rectangular tubes, protecting the main scaffolding structure and preventing deformation or damage to the scaffolding crossbars due to repeated impacts. Second, as a wear-prone component, the hollow rectangular tubes can be replaced independently and at low cost after long-term wear, significantly reducing maintenance costs and time, and avoiding the need to replace the entire scaffolding assembly or flap assembly.

[0019] Preferably, a buffer layer is provided at the contact position between the hollow rectangular tube and the bent edge of the hinge piece, and a buffer layer is provided at the contact position between the flat plate and the bent edge of the hinge piece.

[0020] As described above, placing a buffer layer (such as a rubber pad) at the contact point can effectively absorb the impact energy when the flat panel flips into place, significantly reducing the noise and vibration generated by metal collisions. This not only improves the construction environment, but more importantly, it slows down the hard wear between the hinge bending edge and the rectangular tube and flat panel, greatly extending the service life of the core components of the flip panel.

[0021] Preferably, the width of the hollow rectangular tube is not less than the distance from the hinge point to the bent edge of the hinge piece.

[0022] As described above, by limiting the width of the hollow rectangular tube to be no less than the distance from the hinge joint to the bent edge, it is ensured that when the flat panel is flipped to a horizontal position, the bent edge can be fully and stably supported on the surface of the rectangular tube. This design ensures the effective transmission of support force, prevents the bent edge from being suspended or unstable due to the rectangular tube being too narrow, thereby improving the safety and reliability of the entire flip-up structure under load.

[0023] Preferably, the bent edge is perpendicular to the hinge piece.

[0024] Preferably, the hinge plate has mounting holes located near the bent edge. The screw passes through the mounting holes on the hinge plate and the hollow rectangular tube and is threaded to the nut. Alternatively, the screw passes through the mounting holes on the hinge plate and the mounting holes on the flat panel and is threaded to the nut.

[0025] As described above, placing the mounting hole near the bent edge creates an optimized lever arm. When the flat plate is subjected to a downward load, this mounting method allows the screw to primarily bear the tensile force, while the bent edge bears the compressive force, forming a stable torque that firmly "locks" the flap in the working position. This design greatly enhances the stability of the connection and effectively prevents the screw from loosening or being damaged due to shear forces.

[0026] Preferably, the flat panel is rotatably mounted on the scaffolding via at least two hinged sheet metal parts.

[0027] As described above, using at least two hinge sheet metal parts for installation can evenly distribute the load on the flat panel across multiple support points. This avoids excessive stress at a single point, effectively prevents the flat panel from twisting and deforming due to load, ensures its flatness during long-term use, and significantly improves the load-bearing capacity and stability of the entire flip-up device.

[0028] Preferably, the flat plate has a vertically upward-extending strip-shaped guard edge on the side away from the hinge sheet metal part.

[0029] As described above, a strip-shaped guardrail is installed on the outer side of the flat panel, forming a simple protective barrier. This effectively prevents tools, small parts, and other items placed on the platform from slipping off the edge, avoiding material waste and economic losses, eliminating the safety hazards caused by falling objects from heights, and providing construction workers with a safer and more reliable working platform.

[0030] Example 1 See Figures 1 to 11 This embodiment provides a hinged flap for scaffolding, which is mainly composed of a flat plate 1 and a hinge sheet metal part 2.

[0031] Specifically, such as Figure 8 and Figure 9 As shown, the flat panel 1 is made of a 4mm thick 6061-T6 aluminum alloy, with dimensions of 998mm in length and 200mm in width, sufficient to bridge the approximately 40cm gap between the scaffolding and the building. The length can be cut to size as needed. On the long side of the flat panel 1 closest to the building, a vertically extending strip-shaped guardrail 11 is integrally stamped, 50mm high, effectively preventing tools and materials from slipping off the platform edge. On the other side of the flat panel 1 away from the strip guardrail 11, a vertically extending extension wall 12 is integrally formed, with mounting holes for locking hinge sheet metal parts.

[0032] Specifically, such as Figures 3 to 7As shown, hinge sheet metal component 2: This embodiment uses two hinge sheet metal components 2, which are arranged at intervals along the length of the flat plate 1 to ensure uniform and stable support. The interval distance can be set according to the actual length of the flat plate. When a longer flat plate is required, two or more shorter flat plates can be used instead, so that each flat plate only needs to be equipped with two hinge sheet metal components 2.

[0033] Each hinge sheet metal component 2 includes: One rotating shaft 21 is a solid steel shaft with a diameter of 12mm.

[0034] The two hinge pieces 22 are stamped from 5mm thick galvanized steel sheets. One end of each hinge piece 22 has a shaft hole, and they are fitted together onto the rotating shaft 21 to form a hinge connection.

[0035] Two bent edges 23 are formed by bending perpendicularly towards each other at the other ends of the two hinge pieces 22. The length of the bent edges 23 is 23mm, which is adapted to the outer diameter (23mm) of the shaft hole of the hinge piece 22 to ensure the limiting function.

[0036] Installation and operation process: One of the hinge pieces 22 is directly screwed onto the horizontal crossbar of the scaffold 3, with its bent edge 23 facing upwards. The other hinge piece 22 is screwed onto the extension wall 12 (a section of welded angle steel or stamped flange) on the back of the flat plate 1, with its bent edge 23 facing downwards.

[0037] like Figure 2 Working state (horizontally unfolded): During construction, the flat plate 1 is flipped downwards to a horizontal position. At this time, the bent edges 23 of the hinges locked to the scaffolding abut against the upper surface of the scaffolding crossbars, while the bent edges 23 of the hinges locked to the flat plate abut against the back of the flat plate 1. These two bent edges 23, together with the pivot 21, form a stable three-point support structure, like a "doorstop," reliably supporting the flat plate 1 at the same level as the scaffolding work platform, and can safely withstand the loads from workers stepping on it and materials being placed on it.

[0038] like Figure 1 Demolding state (vertically retracted): When demolding is required, construction workers simply lift the flat panel 1 upwards, rotating it approximately 90 degrees around the pivot 21 until it is roughly parallel to the scaffold facade. At this point, the required 60cm operating space between the scaffold and the building is fully cleared, allowing for smooth demolding. After demolding, the flat panel 1 can be gently lowered back to its horizontal working state.

[0039] Example 2: See Figures 1 to 11This embodiment is an optimization based on Embodiment 1 to further improve the product's durability and maintainability. The improvement in this embodiment is the addition of a strip-shaped hollow rectangular tube 4.

[0040] Specifically, such as Figure 10 and Figure 11 As shown, the hollow rectangular tube 4 is made of Q235 square steel with a cross-section of 30mm × 60mm and a wall thickness of 3mm. Its length matches the width of the flat plate 1. This rectangular tube is horizontally fastened to the horizontal crossbar of the scaffold 3 near the construction position by screws.

[0041] Installation optimization: At this point, the hinge piece 22, which was originally directly locked to the scaffolding, is now locked to the horizontal side of the hollow rectangular tube 4, with its bent edge 23 still facing the flat plate 1.

[0042] Technical effects and advantages: 1. Protection of the scaffolding structure: The impact and wear of the hinges are now entirely borne by the hollow rectangular tube 4. Even if the surface of the rectangular tube wears or deforms due to long-term use, only this low-cost rectangular tube needs to be replaced, without replacing or repairing the more expensive main scaffolding structure, greatly reducing maintenance costs.

[0043] 2. Enhanced Buffering and Noise Reduction: A 3mm thick rubber buffer layer is adhered to the contact surfaces of the hollow rectangular tube 4 and the bent edge 23 of the hinge, as well as the contact surfaces of the flat plate 1 and the other bent edge 23. This buffer layer effectively absorbs the impact energy when the flat plate is flipped into place, significantly reducing noise, minimizing wear on metal parts, and extending service life.

[0044] 3. Ensuring stable support: In this embodiment, the width of the hollow rectangular tube 4 is greater than the distance from the hinge center of the hinge piece 22 to the end of the bent edge 23. This design ensures that when the flat plate 1 is placed horizontally, the bent edge 23 can be fully and stably supported on the top surface of the rectangular tube, avoiding the risk of instability that may occur with edge support.

[0045] 4. Optimized mechanical design: The mounting holes on the hinge piece 22 are located near the bending edge 23. When the flat plate 1 is under load, the load is pressed onto the rectangular tube through the bending edge 23, while the screw mainly bears tensile stress, forming an ideal lever arm structure that makes the connection extremely stable and effectively prevents the screw from loosening or being damaged due to shear force.

[0046] Testing and Verification: Actual load-bearing tests showed that the hinged flap manufactured according to Embodiment 2 exhibited no permanent deformation when a uniformly distributed load of 200 kg (simulating the weight of two construction workers and tools) was applied to the flat plate, and its flipping function remained flexible and smooth. After undergoing more than 5,000 repeated opening and closing tests, all major components remained functional, with only slight wear on the buffer layer, demonstrating its excellent durability.

[0047] This utility model has been described with reference to the above-described embodiments and accompanying drawings. However, the above embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. On the contrary, modifications and equivalent provisions included in the spirit and scope of the claims are all included within the scope of this utility model.

Claims

1. A hinged flap for scaffolding, characterized in that: The system includes a hinge sheet metal component and a flat panel. The flat panel is rotatably mounted on the horizontal side of the scaffolding near the work position when it is in use, via the hinge sheet metal component. The hinge sheet metal component includes a pivot and two hinge pieces. One end of each of the two hinge pieces is respectively fitted onto the pivot to form a hinge, and the other end of each of the two hinge pieces has a bent edge extending in opposite directions. The bending length of the bent edge is adapted to the diameter of the pivot. When the flat panel and the work platform of the scaffolding are on the same horizontal plane, the two bent edges respectively abut against the scaffolding and the flat panel.

2. A hinged flap for scaffolding according to claim 1, characterized in that: It also includes a strip-shaped hollow rectangular tube, which is horizontally locked to the horizontal side of the scaffold near the construction position when it is in use. One of the two hinges is locked to the hollow rectangular tube with its bent edge facing the flat plate, and the other of the two hinges is locked to an extension wall located on one side of the flat plate with its bent edge facing the hollow rectangular tube.

3. A hinged flap for scaffolding according to claim 2, characterized in that: A buffer layer is provided at the contact position between the hollow rectangular tube and the bent edge of the hinge piece, and a buffer layer is provided at the contact position between the flat plate and the bent edge of the hinge piece.

4. A hinged flap for scaffolding according to claim 2, characterized in that: The width of the hollow rectangular tube is not less than the distance from the hinge point to the bent edge of the hinge piece.

5. A hinged flap for scaffolding according to claim 2, characterized in that: The bent edge is perpendicular to the hinge piece it is located on.

6. A hinged flap for scaffolding according to claim 2, characterized in that: The hinge plate has mounting holes located near the bent edge. The screw passes through the mounting holes on the hinge plate and the mounting holes on the hollow rectangular tube and is threaded to the nut. The screw also passes through the mounting holes on the hinge plate and the mounting holes on the flat panel and is threaded to the nut.

7. A hinged flap for scaffolding according to claim 1, characterized in that: The flat panel is rotatably mounted on the scaffolding via at least two hinged sheet metal parts.

8. A hinged flap for scaffolding according to claim 1, characterized in that: The flat panel has a vertically upward-extending strip edge on the side away from the hinge sheet metal part.

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