Tunnel movable scaffold

Abstract

The application discloses a tunnel movable scaffold, and particularly relates to the field of scaffolds, which comprises a scaffold, an auxiliary moving assembly arranged at the bottom of the scaffold, and a fixed supporting assembly arranged at the inner side of the auxiliary moving assembly. The auxiliary moving assembly comprises a mounting frame fixedly connected to the bottom of the scaffold, an adjusting screw threadedly connected to the inner side of the mounting frame, a bottom plate sleeved to the bottom of the adjusting screw, a transmission sleeve rotatably connected to one end of the bottom plate, distance-adjusting screws threadedly connected to both ends of the transmission sleeve, and side plate frames fixedly connected to one end of the distance-adjusting screws on both sides. The auxiliary moving assembly is arranged to enable the limiting wheels to move on the steel rail, so that the scaffold is displaced according to the guidance of the steel rail under the limitation of the steel rail, and deviation and collision of the scaffold during movement in the tunnel are avoided. The pulleys at the ends of the auxiliary side frames on both sides are in contact with the side arc walls of the railway tunnel, so that the overall stability of the scaffold is improved through the auxiliary side frames on both sides.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scaffolding, more particularly, the present application relates to a movable scaffold for tunnel. BACKGROUND

[0002] Scaffolding is a working platform erected to ensure the smooth progress of various construction processes, which is built by steel structure and can be flexibly combined and disassembled according to the needs. It is an important tool for high-altitude construction. When maintaining and constructing a railway tunnel, scaffolding is also needed to enable workers to access the inner wall of the high place of the tunnel. Since the tunnel is long, there are also many positions that need to be maintained and constructed, so the scaffolding needs to have a relatively flexible moving ability. Currently, the scaffolding used in the railway tunnel is mostly moved by simple universal pulleys. However, the ground environment in the railway tunnel is complex, and the ground of the single-track tunnel is mostly arc-shaped, with few flat surfaces. When the scaffolding moves, it is easy to collide or deviate, and it is also inconvenient to fix the scaffolding during construction. In the complex environment of the tunnel ground and the less conditions for fixing the scaffolding, the stability of the fixed scaffolding is reduced, which cannot meet the use requirements.

[0003] According to the Chinese patent CN118128279B, a double-layer scaffolding for tunnel construction includes a support frame, four vertical columns, and a center column. The support frame forms a rectangular area, and the four vertical columns are arranged at the four corners of the support frame. The invention has a fast adjustment mode and a slow adjustment mode. The fast adjustment mode is suitable for situations where there is no load on the support platform. In the fast adjustment mode, the center column and the clamping wheel remain concentric.

[0004] The above-mentioned application can adjust the height between the scaffolding platforms, but when used in the tunnel, it cannot cope with the auxiliary road conditions in the tunnel, making it inconvenient to transfer the scaffolding in the tunnel. The fixation of the scaffolding cannot meet the stability required by the use. Therefore, to solve this problem, the present application provides a movable scaffolding for tunnel to meet the needs. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a movable scaffolding for tunnel, which satisfies the convenient movement of the scaffolding in the tunnel by setting the auxiliary moving assembly and the fixed support assembly, avoids deviation and collision, and makes the scaffolding fixed to have higher stability to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purposes, the present application provides the following technical solutions:

[0007] A movable scaffold for tunnels includes a scaffold with an auxiliary moving component at its bottom. A fixed support component is located inside the auxiliary moving component. The auxiliary moving component includes a mounting frame fixedly connected to the bottom of the scaffold. An adjusting screw is threadedly connected to the inner side of the mounting frame. A base plate is sleeved on the bottom of the adjusting screw. A transmission sleeve is rotatably connected to one end of the base plate. Adjusting screws are threadedly connected to both ends of the transmission sleeve. Side plate frames are fixedly connected to one end of each of the two side plate frames. Limiting rods are fixedly connected to the ends of each of the two side plate frames away from the adjusting screws. A limiting sleeve is fixedly connected to the end of the base plate away from the transmission sleeve. The limiting rods are slidably connected to the inner side of the limiting sleeves. The fixed support component includes a movable rod hinged to the inner side of the side plate frames. A fixed sleeve is fixedly connected to one end of the movable rod. A fixed end piece is sleeved on one end of the fixed sleeve, and the fixed end piece abuts against the sleeper rail.

[0008] In a preferred embodiment, a side wing plate is fixedly connected to one side of the mounting bracket, a positioning screw is fixedly connected to one end of the side wing plate, and a positioning sleeve is fixedly connected to the top of the side plate frame, the positioning sleeve being sleeved on the outside of the positioning screw.

[0009] In a preferred embodiment, the outer side of the positioning screw is threaded with a positioning element, the positioning element is arranged in an abutting position with the positioning sleeve, and the bottom of the side plate frame is rotatably connected with a limit wheel.

[0010] In a preferred embodiment, an auxiliary side frame is rotatably connected to one side of the scaffold, and a pulley is rotatably connected to one end of the auxiliary side frame.

[0011] In a preferred embodiment, a fixing nut is rotatably connected to the end of the fixing sleeve away from the fixing end piece, and a fixing screw is slidably connected to the inner side of the fixing sleeve. The fixing screw and the fixing nut are connected by a thread.

[0012] In a preferred embodiment, a workbench is fixedly connected to the inner side of the scaffold, an extension frame is slidably connected to one side of the scaffold, and an extension inner plate is fixedly connected to the inner side of the extension frame.

[0013] In a preferred embodiment, one end of the extension frame is fixedly connected to a contact element, and the inner side of the extension frame is fixedly connected to a connecting base frame.

[0014] In a preferred embodiment, a first side sleeve is rotatably connected to the inner side of the connecting base, a first connecting screw is slidably connected to the inner side of the first side sleeve, and a first transmission screw sleeve is threadedly connected to the outer side of the first connecting screw.

[0015] In a preferred embodiment, a second side sleeve is rotatably connected to one side of the scaffold, a second connecting screw is slidably connected to the inner side of the second side sleeve, the second connecting screw is hinged to the first side sleeve, and a second transmission sleeve is rotatably connected to one end of the second side sleeve, the second transmission sleeve and the second connecting screw are threaded together.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. This invention, by setting up auxiliary moving components, adjusts the limiting wheels on both sides to coincide with the rails of the track. By placing multiple limiting wheels on top of the rails, the limiting wheels move on the rails, thereby limiting the scaffolding's displacement according to the rails' guidance under the rails' constraints. This restricts the direction of scaffolding movement, thus preventing deviation and collisions when the scaffolding moves in the tunnel. At the same time, the pulleys at the ends of the auxiliary side frames on both sides contact the side arc walls of the railway tunnel, thereby further improving the overall stability of the scaffolding.

[0018] 2. This invention, by setting up a fixed support assembly, allows multiple fixed end pieces to abut against adjacent sleepers when fixing the scaffolding, thereby limiting the movement of the auxiliary moving components and fixing the scaffolding at its current position. This method of fixing the scaffolding by limiting its position against the sleepers not only ensures stable stopping of the scaffolding but also allows it to be fixed at any position within the tunnel. The fixing method is simple and convenient, requiring no additional tools, greatly reducing the difficulty of fixing the scaffolding. Furthermore, the contact pieces on both sides contact the tunnel wall, ensuring the stability of the fixed scaffolding to meet usage requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a movable scaffold located inside a tunnel.

[0020] Figure 2 A three-dimensional structural diagram of a movable scaffold for a tunnel;

[0021] Figure 3 for Figure 2 Enlarged view of the A-section structure;

[0022] Figure 4 for Figure 2 Enlarged view of the structure of section B;

[0023] Figure 5 A three-dimensional structural diagram of the auxiliary moving component;

[0024] Figure 6 for Figure 5 Enlarged view of the C-section structure;

[0025] Figure 7 This is a schematic diagram of the top structure of the auxiliary moving component.

[0026] The attached figures are labeled as follows: 1. Scaffolding; 2. Mounting frame; 3. Adjusting screw; 4. Base plate; 5. Limiting sleeve; 6. Limiting rod; 7. Side plate frame; 8. Transmission sleeve; 9. Adjusting screw; 10. Side wing plate; 11. Positioning screw; 12. Positioning sleeve; 13. Positioning component; 14. Movable rod; 15. Fixed sleeve; 16. Fixed end piece; 17. Fixed nut; 18. Fixed screw; 19. Limiting wheel; 20. Workbench; 21. Extension frame; 22. Extension inner plate; 23. Contact component; 24. Connecting base frame; 25. First side sleeve; 26. First connecting screw; 27. First transmission screw sleeve; 28. Auxiliary side frame; 29. ​​Pulley; 30. Second side sleeve; 31. Second connecting screw; 32. Second transmission screw sleeve. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Refer to the instruction manual appendix Figures 1-7 As shown, an embodiment of the present invention provides a movable tunnel scaffold, including a scaffold 1. An auxiliary moving component is provided at the bottom of the scaffold 1, and a fixed support component is provided inside the auxiliary moving component. The auxiliary moving component includes a mounting frame 2 fixedly connected to the bottom of the scaffold 1. The mounting frame 2 is arranged in an X-shaped profile, and the four corners of the mounting frame 2 are connected to the four right angles of the scaffold 1. An adjusting screw 3 is threadedly connected to the inner side of the mounting frame 2. A base plate 4 is sleeved on the bottom of the adjusting screw 3. A transmission sleeve 8 is rotatably connected to one end of the base plate 4. Both ends of the transmission sleeve 8 are threadedly connected to adjusting screws 9. The threads of the two adjusting screws 9 are turned in opposite directions, so that when the transmission sleeve 8 is rotated, the adjusting screws 9 on both sides can be brought closer to each other or moved away from each other. A side plate frame 7 is fixedly connected to one end of each adjusting screw 9.

[0029] Limiting rods 6 are fixedly connected to the ends of the side plate frames 7 away from the adjusting screws 9. Limiting sleeves 5 are fixedly connected to the ends of the bottom plate 4 away from the transmission sleeves 8. The limiting rods 6 on both sides are slidably connected to the inner side of the limiting sleeves 5. A side wing plate 10 is fixedly connected to one side of the mounting frame 2. A positioning screw 11 is fixedly connected to one end of the side wing plate 10. A positioning sleeve 12 is fixedly connected to the top of the side plate frame 7. The positioning sleeve 12 is sleeved on the outside of the positioning screw 11. A positioning element 13 is threadedly connected to the outside of the positioning screw 11. The positioning element 13 and the positioning sleeve 12 are in contact. A limiting wheel 19 is rotatably connected to the bottom of the side plate frame 7. The inner contour of the limiting wheel 19 is adapted to the top contour of the rail. Auxiliary side frames 28 are rotatably connected to both sides of the scaffold 1. A pulley 29 is rotatably connected to one end of the auxiliary side frame 28. Two pulleys 29 are provided on both sides of the auxiliary side frame 28.

[0030] It should be noted that when erecting scaffolding inside a railway tunnel, rotating the transmission sleeve 8 causes the adjusting screws 9 on both sides to move closer or further apart, while the limiting rods 6 on both sides move synchronously. This adjusts the spacing between the limiting wheels 19 at the bottom of the side frame 7 on both sides until the limiting wheels 19 on both sides are aligned with the rails of the track. The adjustable position of the limiting wheels 19 on both sides allows them to adapt to different tracks, thereby improving the flexibility of the scaffolding 1 during use. By placing multiple limiting wheels 19 on top of the rails, the limiting wheels 19 move on the rails, thus allowing the scaffolding to move according to the rails under the limiting of the rails. This restricts the direction of movement of the scaffolding, thereby preventing deviation and collisions when the scaffolding moves inside the tunnel.

[0031] Simultaneously, by rotating the adjusting screw 3, the mounting frame 2 can cause the scaffold 1 to slide upward on the outside of the adjusting screw 3, thereby increasing the distance between the scaffold 1 and the tunnel ground. This prevents the bottom of the scaffold 1 from colliding with the tunnel ground when it moves. While the mounting frame 2 is rising, the side wing plates 10 on both sides will cause the positioning screw 11 to slide upward on the inside of the positioning sleeve 12. The positioning screw 11 and the positioning sleeve 12 can limit the mounting frame 2, allowing it to only move vertically. After the mounting frame 2 is adjusted to the required height, the positioning component 13 can be rotated to lower it until it contacts the top of the positioning sleeve 12 and stops. At this time, the positioning component 13 can limit the distance between the positioning sleeve 12 and the positioning screw 11, preventing the positioning screw 11 from lowering on the inside of the positioning sleeve 12. Thus, the positioning screws 11, positioning sleeve 12, and positioning component 13 on both sides can provide auxiliary support and fixation for the mounting frame 2, thereby improving the stability of the scaffold 1 after it is separated from the ground.

[0032] Meanwhile, by making the pulleys 29 at the ends of the auxiliary side frames 28 on both sides contact the side arc wall of the railway tunnel, the overall stability of the scaffold 1 can be further improved by the auxiliary side frames 28 on both sides. Furthermore, by sliding the pulleys 29, the scaffold 1 can be supported by the auxiliary side frames 28 on both sides when moving and when stopping, thereby ensuring the stability of the scaffold 1 when moving and when stopping.

[0033] Furthermore, the fixed support assembly includes a movable rod 14 hinged to the inside of the side plate frame 7. One end of the movable rod 14 is fixedly connected to a fixed sleeve 15. One end of the fixed sleeve 15 is fitted with a fixed end piece 16. The fixed end piece 16 is a flat trapezoidal plate structure. The fixed end piece 16 can rotate at one end of the fixed sleeve 15. The end of the fixed sleeve 15 away from the fixed end piece 16 is rotatably connected to a fixed nut 17. The inside of the fixed sleeve 15 is slidably connected to a fixed screw 18. One end of the fixed screw 18 is also fitted with a fixed end piece 16. The fixed screw 18 and the fixed nut 17 are threaded together.

[0034] A workbench 20 is fixedly connected to the inner side of scaffold 1. An extension frame 21 is slidably connected to one side of scaffold 1. The extension frame 21 has the same structure as scaffold 1 and is composed of steel pipes. An extension inner plate 22 is fixedly connected to the inner side of the extension frame 21. A contact element 23 is fixedly connected to one end of the extension frame 21. Multiple contact elements 23 are arranged in a linear array on one side of the extension frame 21. A connecting base frame 24 is fixedly connected to the inner side of the extension frame 21. A first side sleeve 25 is rotatably connected to the inner side of the connecting base frame 24. A first connecting screw 26 is slidably connected to the inner side of the first side sleeve 25. The first connecting screw 26 is sleeved on the outer side of the auxiliary side frame 28. A first transmission sleeve 27 is threadedly connected to the outer side of a connecting screw 26. The rotation of the auxiliary side frame 28 is controlled by the first side sleeve 25, the first connecting screw 26, and the first transmission sleeve 27. A second side sleeve 30 is rotatably connected to one side of the scaffold 1. A second connecting screw 31 is slidably connected to the inner side of the second side sleeve 30. The second connecting screw 31 is hinged to the first side sleeve 25. A second transmission sleeve 32 is rotatably connected to one end of the second side sleeve 30. The second transmission sleeve 32 is threadedly connected to the second connecting screw 31. The tilt angle of the first side sleeve 25 is controlled by the second side sleeve 30, the second connecting screw 31, and the second transmission sleeve 32.

[0035] It should be noted that, when construction is to proceed after the scaffold 1 has been moved, the movable rods 14 on both sides are flipped so that the movable rods 14 and the fixed end pieces 16 at one end of the fixed screw 18 are positioned between the adjacent sleepers on the track. Multiple fixed end pieces 16 are then rotated to be parallel to the sleepers. At this point, the fixed nut 17 is rotated so that the fixed screw 18 extends from the inside of the fixed sleeve 15, thereby causing the fixed end piece 16 at one end of the fixed screw 18 to contact the sleeper. The process stops after both fixed end pieces 16 have contacted the sleepers. The contact between the fixed end pieces 16 and the sleepers limits the movement of the auxiliary moving components, thus fixing the scaffold 1 at its current position. Fixing the scaffold 1 by limiting its position with the sleepers not only ensures a stable stop for the scaffold 1 but also allows it to be fixed at any position within the tunnel. The fixing method is simple and convenient, requiring no additional tools, greatly reducing the difficulty of fixing the scaffold 1 and simultaneously improving its stability after fixing.

[0036] Since the first side sleeve 25 and the first transmission screw sleeve 27 are separated, pressing down on the auxiliary side frame 28 allows the first connecting screw 26 to extend from the inside of the first side sleeve 25, and vice versa. This controls the rotation angle of the auxiliary side frame 28, ensuring that the pulley 29 can contact the inner wall of the tunnel. After adjusting the angle of the auxiliary side frame 28, the pulley 29 cannot descend because it is in contact with the inner wall of the tunnel. By rotating the first transmission screw sleeve 27 to contact one end of the first side sleeve 25, the distance between the first connecting screw 26 and the first transmission screw sleeve 27 is limited, preventing the first connecting screw 26 from entering the inner side of the first side sleeve 25. This fixes the angle of the auxiliary side frame 28, ensuring that the pulley 29 always contacts the inner wall of the tunnel. The adjustable angle of the auxiliary side frame 28 allows the pulley 29 to contact the inner wall of different tunnels.

[0037] By rotating the second transmission sleeve 32, the second connecting screw 31 gradually extends from the inside of the second side sleeve 30, thereby pushing the first side sleeve 25 to rotate, allowing the extension frame 21 to move away from the scaffold 1. Simultaneously, the first connecting screw 26 extends from the inside of the first side sleeve 25, extending the overall length of the first side sleeve 25 and the first connecting screw 26. After adjustment, rotating the first transmission sleeve 27 to contact the end of the first side sleeve 25 causes the extension frame 21 to slide to one side, gradually exposing the inner extension plate 22. The exposure of the inner extension plate 22 allows... The extension frame 21 increases the workers' activity space, and as it gradually approaches the tunnel wall, it allows workers to have more contact with the tunnel wall, thus facilitating construction. Furthermore, after the contact element 23 contacts the tunnel wall, the contact element 23 abuts against the tunnel wall, further improving the stability of the scaffold 1 and preventing tilting that might occur when one side of the scaffold 1 is heavier. The adjustable position of the extension frame 21 allows the scaffold 1 to adapt to tunnels of different sizes, ensuring the stability of the scaffold 1 after it is fixed, and meeting various needs in actual use.

[0038] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0040] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A movable scaffold for tunnels, comprising scaffolding (1), characterized in that: The bottom of the scaffold (1) is provided with an auxiliary moving component, and the inner side of the auxiliary moving component is provided with a fixed support component. The auxiliary moving component includes a mounting frame (2) fixedly connected to the bottom of the scaffold (1). The inner side of the mounting frame (2) is threaded with an adjusting screw (3). The bottom of the adjusting screw (3) is sleeved with a base plate (4). One end of the base plate (4) is rotatably connected with a transmission sleeve (8). Both ends of the transmission sleeve (8) are threaded with adjusting screws (9). One end of the adjusting screws (9) on both sides is fixedly connected with a side plate frame (7). The side plate frames (7) on both sides are fixedly connected to a limiting rod (6) at the end away from the adjusting screw (9). The bottom plate (4) is fixedly connected to a limiting sleeve (5) at the end away from the transmission sleeve (8). The limiting rods (6) on both sides are slidably connected to the inner side of the limiting sleeve (5). The fixed support assembly includes a movable rod (14) hinged to the inner side of the side plate frame (7). A fixed sleeve (15) is fixedly connected to one end of the movable rod (14). A fixed end piece (16) is sleeved on one end of the fixed sleeve (15). The fixed end piece (16) abuts against the sleeper rail.

2. The movable scaffolding for tunnels according to claim 1, characterized in that: A side wing plate (10) is fixedly connected to one side of the mounting bracket (2), a positioning screw (11) is fixedly connected to one end of the side wing plate (10), and a positioning sleeve (12) is fixedly connected to the top of the side plate frame (7). The positioning sleeve (12) is sleeved on the outside of the positioning screw (11).

3. A movable tunnel scaffolding according to claim 2, characterized in that: The outer side of the positioning screw (11) is threaded with a positioning element (13), which is in contact with the positioning sleeve (12). The bottom of the side plate frame (7) is rotatably connected with a limit wheel (19).

4. A movable tunnel scaffolding according to claim 1, characterized in that: An auxiliary side frame (28) is rotatably connected to one side of the scaffold (1), and a pulley (29) is rotatably connected to one end of the auxiliary side frame (28).

5. A movable tunnel scaffolding according to claim 1, characterized in that: The fixed sleeve (15) is rotatably connected to a fixed nut (17) at the end away from the fixed end piece (16), and a fixed screw (18) is slidably connected to the inner side of the fixed sleeve (15). The fixed screw (18) and the fixed nut (17) are connected in a threaded manner.

6. A movable tunnel scaffolding according to claim 1, characterized in that: The scaffold (1) is fixedly connected to a workbench (20) on its inner side, and an extension frame (21) is slidably connected to one side of the scaffold (1). An extension inner plate (22) is fixedly connected to the inner side of the extension frame (21).

7. A movable tunnel scaffolding according to claim 6, characterized in that: One end of the extension frame (21) is fixedly connected to a contact element (23), and the inner side of the extension frame (21) is fixedly connected to a connecting base frame (24).

8. A movable tunnel scaffolding according to claim 7, characterized in that: The inner side of the connecting base (24) is rotatably connected to a first side sleeve (25), the inner side of the first side sleeve (25) is slidably connected to a first connecting screw (26), and the outer side of the first connecting screw (26) is threadedly connected to a first transmission screw sleeve (27).

9. A movable tunnel scaffolding according to claim 8, characterized in that: The scaffold (1) is rotatably connected to a second side sleeve (30) on one side, and a second connecting screw (31) is slidably connected to the inner side of the second side sleeve (30). The second connecting screw (31) is hinged to the first side sleeve (25). A second transmission sleeve (32) is rotatably connected to one end of the second side sleeve (30), and the second transmission sleeve (32) is threaded to the second connecting screw (31).

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