An operating platform for highway tunnel construction

Abstract

The application relates to an operating platform for expressway tunnel construction, which comprises a base, a moving assembly for driving the base to move, a supporting assembly for preventing the base from sliding, a plurality of supporting module frames, a chassis arranged on the base and sliding in a direction of approaching or moving away from each other, a driving assembly arranged on the base and used for driving the two chassis to slide in the direction of approaching or moving away from each other, a construction rack arranged on each of the two chassis and sliding in a vertical direction, the supporting module frame being arranged between the chassis and the construction rack, a limiting assembly arranged on the supporting module frame and used for fixing the construction rack or the adjacent supporting module frame, and a jacking mechanism arranged on the chassis and used for driving the construction rack or the supporting module frame to move up and down. The application has the effect of shortening the construction period of the tunnel construction.

Description

Technical Field

[0001] This application relates to the technical field of tunnel construction, and in particular to an operating platform for highway tunnel construction. Background Technology

[0002] With the continuous development of expressways, the number of tunnels with complex geological conditions on expressways that have been put into operation is increasing year by year. As the operating time increases, more and more tunnels will develop structural defects. Conventional treatment measures such as replacing the invert arch and backfilling, injecting glue to repair secondary lining cracks, reinforcing secondary lining cracks with steel plates, installing secondary lining arches, and using temporary steel arch frames for reinforcement will all utilize aerial work platforms.

[0003] Currently, the most commonly used aerial work platforms are: aerial work vehicles, mobile gantry scaffolding, and full-span scaffolding. Among them, full-span scaffolding is often used as the working platform for secondary lining crack reinforcement with steel plates, secondary lining arch reinforcement, and temporary steel arch reinforcement. Full-span scaffolding is composed of several profiles assembled and fixed with bolts. However, since the internal structure of operating highway tunnels is usually arched, tunnel construction is generally characterized by dispersed work points, large differences in construction height, and many construction procedures. In actual construction, full-span scaffolding needs to be erected and dismantled multiple times, which is time-consuming and greatly increases the construction cycle. Summary of the Invention

[0004] In order to shorten the construction period of tunnel construction, this application provides an operating platform for highway tunnel construction.

[0005] This application provides an operating platform for highway tunnel construction, which adopts the following technical solution: An operating platform for highway tunnel construction includes a base, a moving component for driving the base to move, and a supporting component for preventing the base from sliding. It also includes several supporting module frames. A base frame is slidably arranged on the base along a direction of mutual approach or distance. A driving component is provided on the base for driving two base frames to slide along a direction of mutual approach or distance. A construction platform is slidably arranged on both base frames along the vertical direction. The supporting module frames are used to be installed between the base frames and the construction platform frames. A limiting component is provided on the supporting module frames for fixing the construction platform frames or adjacent supporting module frames. A lifting mechanism is provided on the base frames for driving the construction platform frames or supporting module frames to rise and fall.

[0006] By adopting the above technical solution, the base is moved to the tunnel construction position by the moving component, and the base is supported and fixed by the support component. According to the tunnel construction position, the two base frames are driven to move closer or further apart by the driving component. According to the height of the construction position, the construction platform is first lifted to a certain height by the jacking mechanism, and the support module frame is placed between the base frame and the construction platform. The construction platform is then placed on the support module frame. After that, the installed support module frame is lifted to a certain height by the jacking mechanism again, and the support module frame is placed between the installed support module frame and the base frame. The support module frame and the construction platform, as well as the support module frames themselves, are fixed by the limiting component. Thus, the height of the construction platform can be adjusted according to the height of the construction position, which greatly shortens the time required for the erection and dismantling of the operating platform and significantly shortens the construction cycle.

[0007] Optionally, the drive assembly includes a bidirectional lead screw and a drive source. The bidirectional lead screw is rotatably mounted on the base, and the axial direction of the bidirectional lead screw is parallel to the sliding direction of the two base frames. The two ends of the bidirectional lead screw are respectively threaded into the two base frames. The drive source is used to drive the bidirectional lead screw to rotate.

[0008] By adopting the above technical solution, the bidirectional lead screw is driven to rotate by the drive source. While the bidirectional lead screw is rotating, the two base frames can be driven to slide in the direction of mutual approach or distance to adjust the position of the base frames. When the bidirectional lead screw stops rotating, the two base frames can be limited respectively.

[0009] Optionally, the limiting component includes a plug-in block and a limiting member. The plug-in block is fixedly installed on the top wall of the support module frame. Both the construction platform and the bottom wall of the support module frame are provided with plug-in slots. The plug-in slots are adapted to the plug-in blocks, and the plug-in slots on the support module frame are used for the insertion of plug-in blocks on the next support module frame. The limiting member is used to prevent the plug-in block from sliding in the plug-in slot.

[0010] By adopting the above technical solution, when the support module frame is assembled with the construction platform, the plug-in block is inserted into the plug-in slot of the construction platform. When the support module frame is assembled with other support module frames, the plug-in block on the later-installed support module frame is inserted into the plug-in slot of the already installed support module frame. After the plug-in block is inserted into the plug-in slot, the limiting component prevents the plug-in block from sliding in the plug-in slot, thereby fixing the support module frame and the construction platform or the support module frames to each other, thus improving the stability of the entire operating platform.

[0011] Optionally, the limiting member includes a limiting block, the side wall of the insertion block is provided with an installation groove, the limiting block is slidably disposed in the installation groove, the insertion block is provided with a first elastic member for driving the limiting block to slide away from the insertion block, the side wall of the insertion groove is provided with a limiting groove for the insertion block to be inserted, and the limiting groove is provided with an ejector for ejecting the limiting block out of the limiting groove.

[0012] By adopting the above technical solution, the plug-in block is inserted into the plug-in slot and slides a certain distance in the plug-in slot. The limiting block is aligned with the limiting slot. Under the elastic force of the first elastic element, the limiting block is inserted into the limiting slot, thereby preventing the plug-in block from detaching from the plug-in slot. When it is necessary to disassemble the support module frame, the limiting block is pushed out of the limiting slot by the ejector, so that the plug-in block can be removed from the plug-in slot.

[0013] Optionally, the end of the limiting block away from the plug-in block is provided with a guide slope, and the end of the limiting block away from the plug-in block gradually approaches the plug-in block in the direction away from the support module frame.

[0014] By adopting the above technical solution, when the plug block is inserted into the plug slot, the limiting block slides towards the plug block under the guidance of the guide slope, thereby facilitating the insertion of the plug block into the plug slot.

[0015] Optionally, the ejector includes a top block, which is slidably disposed in a limiting groove. The bottom wall of the limiting groove has a through hole. A top rod is rotatably disposed on the top block and slidably passes through the through hole. A locking block is fixedly disposed on the side wall of the top rod. A first locking groove is formed along the length of the top rod on the side wall of the through hole. The locking block is slidably disposed in the first locking groove. A second locking groove is formed along the circumference of the top rod on the side wall of the first locking groove and communicates with the first locking groove. The second locking groove is used for the locking block to be screwed in.

[0016] By adopting the above technical solution, the limit block can be pushed out of the limit groove by pushing the top rod to drive the top block to slide in the limit groove. After the limit block is pushed out of the limit groove, the top rod is rotated to make the locking block screw into the second locking groove, preventing the locking block from sliding in the first locking groove, thereby preventing the limit block from being inserted into the limit groove again.

[0017] Optionally, the top wall of the base frame is provided with a positioning groove, and a positioning block is slidably disposed in the positioning groove along the direction perpendicular to the top wall of the base frame. The base frame is provided with a second elastic element for driving the positioning block to slide away from the base frame. The position of the positioning block corresponds to the position of the insertion groove on the construction platform.

[0018] By adopting the above technical solution, when the support module frame is placed on the base frame, the positioning block is inserted into the plug slot on the support module frame, which facilitates the alignment of the support module frame with the construction platform or the already installed support module frame.

[0019] Optionally, a ladder is slidably mounted on the construction platform. The ladder includes multiple ladder plates that are hinged sequentially. Guide blocks are fixedly mounted on both sides of each ladder plate. Fixing blocks are fixedly mounted on the construction platform on both sides of each ladder plate. Sliding grooves are formed at the ends of the two fixing blocks that are close to each other. The guide blocks on both sides of the ladder plate are slidably mounted in the sliding grooves of the two fixing blocks. A first fixing member is provided on the fixing block to prevent the guide blocks from sliding. A second fixing member is provided on the base frame to fix the ladder plate.

[0020] By adopting the above technical solution, as the height of the construction platform is adjusted, the sliding ladder extends out of the construction platform by a length equal to the distance between the construction platform and the base frame. Then, the ladder plate extending out of the construction platform is rotated, and the guide slider is prevented from sliding by the first fixing component. The ladder plate is fixed to the base frame by the second fixing component, which makes it easy for workers to climb onto the operating platform. When not in use, the ladder can be folded and stored for easy transportation.

[0021] Optionally, the lifting mechanism includes a lifting plate, a first driving component, a top plate, and a second driving component. Support frames are fixedly installed on both sides of the base frame and on both sides of the construction platform. The lifting plate is slidably installed on both support frames along the direction perpendicular to the top wall of the base frame. The first driving component is used to drive the lifting plate to slide. The top plate is slidably installed on the lifting plate along the direction close to or away from the construction platform. The second driving component is used to drive the top plate to slide. Support plates are fixedly installed on both sides of the construction platform and the support module frame. The support plates correspond one-to-one with the top plate.

[0022] By adopting the above technical solution, when it is necessary to lift the construction platform or support module frame, the second driving component drives the top plate to slide towards the construction platform, and the top plates on the two support frames are respectively located below the support plates on both sides of the construction platform or support module frame. The first driving component drives the lifting plate to rise, so that the top plate abuts against the support plate, and drives the construction platform or support module frame to rise.

[0023] According to the above-mentioned operating platform for highway tunnel construction, the operation process of the platform is as follows: the roller is driven to rotate by the servo motor (33), and the support is driven to rotate by the directional cylinder (32) to move the base (1) to the construction position of the tunnel. The telescopic outriggers (41) are driven to slide by the four lifting cylinders (42) to support and fix the base (1) and level the base (1). Since the tunnel wall is usually arched and the height of the construction position gradually increases from both sides to the middle, the bidirectional screw (13) is driven to rotate by the stepper motor according to the tunnel construction position, so that the two base frames (11) move closer or further away from each other, so that the construction platform (12) is located directly below the construction position. Then, based on the height of the construction location, the top plate (53) is driven by the second pneumatic cylinder to slide closer to the construction platform (12), and the top plate (53) on the two support frames (114) is positioned below the support plates on both sides of the construction platform (12). The lifting plate is driven by the lifting cylinder to raise the construction platform (12) to a certain height. The support module frame (2) is placed between the base frame (11) and the construction platform (12). The construction platform (12) is placed on the support module frame (2), and the plug-in blocks (21) on the support module frame (2) are inserted into the construction platform. The corresponding insertion slot (23) on the platform (12) is then used to lift the installed support module frame (2) to a certain height using the lifting mechanism (5). The support module frame (2) is then placed between the installed support module frame (2) and the base frame (11). The insertion blocks (21) on the subsequently installed support module frame (2) are then inserted into the corresponding insertion slots (23) on the installed support module frame (2). This allows the height of the construction platform (12) to be adjusted according to the height of the construction position, greatly shortening the time required for the construction and dismantling of the operating platform and shortening the construction cycle.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Based on the tunnel construction location, the two base frames are driven to move closer or further apart using the drive components. According to the height of the construction location, the construction platform is first lifted to a certain height using the jacking mechanism. The support module frame is then placed between the base frame and the construction platform, and the construction platform is placed on the support module frame. After that, the installed support module frame is lifted to a certain height again using the jacking mechanism, and the support module frame is placed between the installed support module frame and the base frame. In this way, the height of the construction platform is adjusted according to the height of the construction location, which greatly shortens the time required for the erection and dismantling of the operating platform and shortens the construction cycle. 2. As the height of the construction platform is adjusted, the sliding ladder extends out of the construction platform by a length equal to the distance between the construction platform and the base frame. Then, the ladder plate extending out of the construction platform is rotated, and the guide slider is prevented from sliding by the first fixing component. The ladder plate is fixed to the base frame by the second fixing component, making it easy for workers to climb onto the operating platform. When not in use, the ladder can be folded for easy transportation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 This is a partial structural schematic diagram of an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of section B; Figure 5 This is a partial structural schematic diagram of an embodiment of this application; Figure 6 yes Figure 5 A magnified view of section C; Figure 7 yes Figure 5 A magnified view of section D.

[0026] The components include: 1. Base; 11. Base frame; 111. Fixing sleeve; 112. Telescopic sleeve; 113. Second fixing component; 114. Support frame; 115. Positioning block; 116. Second elastic component; 12. Construction platform; 121. Ladder; 1211. Guide block; 122. Fixing block; 123. First fixing component; 124. Primary guardrail; 1241. Secondary guardrail; 13. Bidirectional lead screw; 131. Driven gear; 14. Drive source; 141. Driving gear; 2. Support module frame. ; 21. Insertion block; 211. First elastic element; 22. Limiting element; 221. Guide slope; 23. Insertion groove; 24. Top block; 241. Top rod; 242. Locking block; 243. First locking groove; 244. Second locking groove; 3. Moving component; 31. Walking wheel; 32. Directional cylinder; 33. Servo motor; 4. Support component; 41. Telescopic outrigger; 42. Lifting cylinder; 5. Lifting mechanism; 51. Lifting plate; 52. First driving element; 53. Top plate; 54. Second driving element. Detailed Implementation

[0027] The following will be combined with the appendix Figures 1-7 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] This application discloses an operating platform for highway tunnel construction. (Refer to...) Figure 1 It includes a base 1 and several support module frames 2. The base 1 is provided with a moving component 3 for driving the base 1 to move and a support component 4 for preventing the base 1 from moving. Two base frames 11 are slidably arranged on the base 1. Construction platforms 12 are slidably arranged on the two base frames 11 along the vertical direction. The support module frames 2 are used to be installed on the construction platforms 12 and the base frames 11. The base frames 11 are provided with a lifting mechanism 5 for driving the construction platforms 12 or the support module frames 2 to rise and fall.

[0029] Reference Figure 1The moving component 3 includes a walking wheel 31, a steering cylinder 32, and a servo motor 33. Four supports are rotatably mounted on the bottom wall of the base 1. The four supports are located at the four corners of the base 1, and the rotation axis of the supports is vertical. Each support is rotatably mounted with a walking wheel 31. The steering cylinder 32 corresponds to each support and is hinged to the base 1. The piston rod of the steering cylinder 32 is hinged to the corresponding support. Each support is fixedly mounted with a servo motor 33. The output shaft of the servo motor 33 is coaxially and fixedly connected to the walking wheel 31.

[0030] Reference Figure 1 The support assembly 4 includes telescopic outriggers 41 and lifting cylinders 42. Four telescopic outriggers 41 are provided, and the four telescopic outriggers 41 are respectively located at the four corners of the base 1. The telescopic outriggers 41 are slidably mounted on the base 1 in the vertical direction, and the length direction of the telescopic outriggers 41 is vertical. The lifting cylinders 42 correspond one-to-one with the telescopic outriggers 41. The lifting cylinders 42 are fixedly mounted on the base 1, and the piston rod of the lifting cylinders 42 is fixedly connected to the telescopic outriggers 41.

[0031] Reference Figure 1 , 2 The sliding direction of the two base frames 11 is horizontal. The base 1 is provided with a drive assembly for driving the two base frames 11 to slide. The drive assembly includes a bidirectional lead screw 13 and a drive source 14. The bidirectional lead screw 13 is rotatably mounted on the base 1, and the axis of the bidirectional lead screw 13 is parallel to the sliding direction of the two base frames 11. The two ends of the bidirectional lead screw 13 are threadedly engaged with the two base frames 11 respectively. The drive source 14 includes a stepper motor, which is fixedly mounted on the base 1. A drive gear 141 is coaxially fixedly mounted on the output shaft of the stepper motor, and a driven gear 131 is coaxially fixedly mounted on the bidirectional lead screw 13. The drive gear 141 meshes with the driven gear 131.

[0032] Reference Figure 3 Fixed sleeves 111 are fixedly installed on the base frame 11 and on both sides of the construction platform 12. The fixed sleeves 111 are vertical in axis and have a rectangular cross section. Multiple telescopic sleeves 112 are sequentially fitted inside the two fixed sleeves 111 from large to small. The smallest telescopic sleeve 112 is fixedly connected to the construction platform 12. A first anti-detachment block is fixedly installed on the side wall of each telescopic sleeve 112. A first anti-detachment groove is opened on the inner side wall of each telescopic sleeve 112 along the length direction of the telescopic sleeve 112. The first anti-detachment block is slidably installed in the first anti-detachment groove of the adjacent telescopic sleeve 112 (not shown in the figure).

[0033] Reference Figure 3 , 4A ladder 121 is slidably mounted on the construction platform 12. The ladder 121 includes multiple ladder plates that are hinged in sequence, and the maximum rotation angle between two adjacent ladder plates is 90°. Guide blocks 1211 are fixedly mounted on both sides of the ladder plates. The length direction of the guide blocks 1211 is parallel to the length direction of the ladder plates. Fixing blocks 122 are fixedly mounted on the construction platform 12 on both sides of the ladder plates. Slide grooves are opened at the ends of the two fixing blocks 122 that are close to each other. The guide blocks 1211 on both sides of the ladder plates are slidably mounted in the slide grooves of the two fixing blocks 122 respectively.

[0034] Reference Figure 4 The fixing block 122 is provided with a first fixing member 123 for preventing the guide slider 1211 from sliding. The first fixing member 123 includes a first bolt. The top wall of the fixing block 122 is provided with a first mounting hole communicating with the slide groove. The guide slider 1211 is provided with a first threaded hole that is adapted to the first bolt. The base frame 11 is provided with a second fixing member 113 for fixing the ladder plate. The second fixing member 113 includes a second bolt. The ladder plate located at the lowest side is provided with a second mounting hole. The base frame 11 is provided with a second threaded hole that is adapted to the second bolt.

[0035] Reference Figure 3 , 4 Multiple primary guardrails 124 are rotatably installed on the top wall of the construction platform 12, and the primary guardrails are respectively installed on the edge of the construction platform 12. The rotation axis of the primary guardrails 124 is parallel to the top wall of the construction platform 12 and deflects in the direction of mutual approach. The maximum deflection angle of the primary guardrails 124 relative to the top wall of the construction platform 12 is ninety degrees, and when the primary guardrails 124 rotate to the maximum deflection angle, the primary guardrails 124 are perpendicular to the top wall of the construction platform 12. Secondary guardrails 1241 are slidably installed on the primary guardrails 124 in a direction parallel to the primary guardrails 124. The secondary guardrails 1241 on each primary guardrail 124 are fixed to the next primary guardrail 124 by bolts. The last secondary guardrail 1241 is fixed to the construction platform 12 by bolts.

[0036] Reference Figure 5 The lifting mechanism 5 includes a lifting plate 51, a first driving component 52, a top plate 53, and a second driving component 54. Support frames 114 are fixedly installed on the base frame 11 and on both sides of the construction platform 12. Lifting plates 51 are slidably installed on both support frames 114 along the vertical direction. The first driving component 52 includes two lifting cylinders. Both lifting cylinders are fixedly installed on the base frame 11, and each lifting cylinder corresponds to a support frame 114. The piston rods of the two lifting cylinders are fixedly connected to the two lifting plates 51 respectively.

[0037] Reference Figure 1Both lifting plates 51 are slidably provided with top plates 53 along the horizontal direction, and the sliding direction of the top plates 53 on both lifting plates 51 is parallel to the axis of the bidirectional lead screw 13. The second driving component 54 includes a pneumatic cylinder. Both lifting plates 51 are fixedly provided with pneumatic cylinders, and the piston rod of the pneumatic cylinder is fixedly connected to the top plate 53. Both sides of the construction platform 12 and the support module frame 2 are fixedly provided with support plates.

[0038] Reference Figure 5 , 6 The support module frame 2 is provided with a limiting component for fixing the construction platform 12 or adjacent support module frames 2. The limiting component includes a plug-in block 21 and a limiting member 22. Four plug-in blocks 21 are fixedly installed on the top wall of each support module frame 2. The four plug-in blocks 21 are respectively located at the four corners of the support module frame 2. Four plug-in slots 23 are opened on the bottom wall of both the construction platform 12 and the support module frame 2. The positions of the four plug-in blocks 21 and the four plug-in slots 23 correspond one-to-one, and the plug-in slots 23 are adapted to the plug-in blocks 21.

[0039] Reference Figure 6 The limiting member 22 includes a limiting block. The side wall of the plug-in block 21 is provided with an installation groove. The limiting block is slidably disposed in the installation groove. The side wall of the limiting block is fixedly provided with a guide block. The side wall of the installation groove is provided with a guide groove along the sliding direction of the limiting block. The guide block is slidably disposed in the guide groove. The plug-in block 21 is provided with a first elastic member 211 for driving the limiting block to slide away from the plug-in block 21. The first elastic member 211 includes a first compression spring. The first compression spring is disposed in the installation groove. One end of the first compression spring abuts against the bottom wall of the installation groove, and the other end of the first compression spring abuts against the limiting block. The side wall of the plug-in groove 23 is provided with a limiting groove for the insertion of the limiting block.

[0040] Reference Figure 6 The end of the limiting block away from the plug-in block 21 is provided with a guide slope 221. The end of the limiting block away from the plug-in block 21 gradually approaches the plug-in block 21 in the direction away from the support module frame 2. When the guide block abuts against the side wall of the guide groove away from the bottom wall of the mounting groove, a part of the guide slope 221 is located in the mounting groove. When the plug-in block 21 is inserted into the plug-in groove 23, the limiting block slides towards the plug-in block 21 under the guidance of the guide slope 221, so as to facilitate the insertion of the plug-in block 21 into the plug-in groove 23.

[0041] Reference Figure 6The limiting groove is provided with an ejector for ejecting the limiting block out of the limiting groove. The ejector includes a top block 24, which is slidably disposed in the limiting groove. A through hole is formed in the bottom wall of the limiting groove along the sliding direction of the top block 24. A top rod 241 is rotatably disposed on the top block 24 and slides through the through hole. A locking block 242 is fixedly disposed on the side wall of the top rod 241. A first locking groove 243 is formed in the side wall of the through hole along the length direction of the top rod 241. The locking block 242 is slidably disposed in the first locking groove 243. A groove is formed in the side wall of the first locking groove 243 along the circumference of the top rod 241. The second slot 244 is connected to the 243 and is an arc-shaped slot. By pushing the push rod 241, the push block 24 can slide in the limiting slot, thus pushing the limiting block out of the limiting slot. When the limiting block just pushes out of the limiting slot, the guide block abuts against the side wall of the guide slot near the bottom wall of the mounting slot, and the locking block 242 abuts against the side wall of the first slot 243 near the inside of the insertion slot 23. The locking block 242 is directly opposite the second slot 244. Rotating the push rod 241 causes the locking block 242 to be screwed into the second slot 244, preventing the push rod 241 from continuing to slide, thereby preventing the limiting block from being inserted into the limiting slot again.

[0042] Reference Figure 1 The top wall of the base frame 11 is provided with four positioning grooves. Positioning blocks 115 are slidably arranged in the vertical direction in each of the four positioning grooves. A second anti-detachment block is fixedly arranged on the side wall of the positioning block 115. A second anti-detachment groove is provided on the side wall of the positioning groove along the sliding direction of the positioning block 115. The second anti-detachment block is slidably arranged in the second anti-detachment groove. A second elastic element 116 is provided on the base frame 11 to drive the positioning block 115 to slide away from the base frame 11. The second elastic element 116 includes a second compression spring. The second compression spring is arranged in the positioning groove. One end of the second compression spring abuts against the bottom wall of the positioning groove, and the other end of the second compression spring abuts against the positioning block 115. The position of the positioning block 115 corresponds one-to-one with the position of the insertion groove 23 on the construction platform 12. The top wall of the positioning block 115 is provided with a spherical surface.

[0043] The implementation principle of the operating platform for highway tunnel construction in this application embodiment is as follows: the roller is driven to rotate by the servo motor 33, and the support is driven to rotate by the directional cylinder 32, so that the base 1 is moved to the construction position in the tunnel. The telescopic outriggers 41 are driven to slide by the four lifting cylinders 42 to support and fix the base 1 and level the base 1. Since the tunnel wall is usually arched and the height of the construction position gradually increases from both sides to the middle, the bidirectional lead screw 13 is driven to rotate by the stepper motor according to the tunnel construction position, so that the two base frames 11 move closer or further apart, so that the construction platform 12 is located directly below the construction position.

[0044] Based on the height of the construction location, the top plate 53 is slid towards the construction platform 12 by the second pneumatic cylinder, and the top plates 53 on the two support frames 114 are respectively located below the support plates on both sides of the construction platform 12. The lifting plate is raised by the lifting cylinder, and the construction platform 12 is lifted to a certain height. The support module frame 2 is placed between the base frame 11 and the construction platform 12, and the construction platform 12 is placed on the support module frame 2. The plug-in blocks 21 on the support module frame 2 are inserted into the corresponding plug-in slots 23 on the construction platform 12. Then, the lifting mechanism 5 lifts the installed support module frame 2 to a certain height and places the support module frame 2 between the installed support module frame 2 and the base frame 11. The plug-in blocks 21 on the subsequently installed support module frame 2 are inserted into the corresponding plug-in slots 23 on the installed support module frame 2. Thus, the height of the construction platform 12 is adjusted according to the height of the construction location, which greatly shortens the time required for the erection and dismantling of the operating platform and shortens the construction cycle.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An operating platform for highway tunnel construction, comprising a base (1), a moving component (3) for driving the base (1) to move, and a supporting component (4) for preventing the base (1) from sliding, characterized in that: It also includes several support module frames (2), and a base frame (11) is slidably arranged on the base (1) along the direction of mutual approach or distance. A driving component is provided on the base (1) for driving the two base frames (11) to slide along the direction of mutual approach or distance. A construction platform (12) is slidably arranged on both base frames (11) along the vertical direction. The support module frame (2) is used to be installed between the base frame (11) and the construction platform (12). A limiting component is provided on the support module frame (2) for fixing the construction platform (12) or adjacent support module frames (2). A lifting mechanism (5) is provided on the base frame (11) for driving the construction platform (12) or support module frame (2) to rise and fall. The lifting mechanism (5) includes a lifting plate (51), a first driving member (52), a top plate (53), and a second driving member (54). Support frames (114) are fixedly installed on the base frame (11) and on both sides of the construction platform (12). The lifting plate (51) is slidably installed on both support frames (114) along the direction perpendicular to the top wall of the base frame (11). The first driving member (52) is used to drive the lifting plate (51) to slide. The top plate (53) is slidably installed on the lifting plate (51) along the direction close to or away from the construction platform (12). The second driving member (54) is used to drive the top plate (53) to slide. Support plates are fixedly installed on both sides of the construction platform (12) and the support module frame (2). The support plates correspond one-to-one with the top plate (53). The operation process of the construction platform for highway tunnel construction is as follows: the roller is driven to rotate by the servo motor (33), and the support is driven to rotate by the directional cylinder (32) to move the base (1) to the construction position of the tunnel. The telescopic outriggers (41) are driven to slide by the four lifting cylinders (42) to support and fix the base (1) and level the base (1). Since the tunnel wall is arched and the height of the construction position gradually increases from both sides to the middle, the bidirectional screw (13) is driven to rotate by the stepper motor according to the tunnel construction position, so that the two base frames (11) move closer or further away from each other, so that the construction platform (12) is located directly below the construction position. Then, based on the height of the construction location, the top plate (53) is driven by the second pneumatic cylinder to slide closer to the construction platform (12), and the top plate (53) on the two support frames (114) is positioned below the support plates on both sides of the construction platform (12). The lifting plate is driven by the lifting cylinder to raise the construction platform (12) to a certain height. The support module frame (2) is placed between the base frame (11) and the construction platform (12). The construction platform (12) is placed on the support module frame (2), and the plug-in blocks (21) on the support module frame (2) are inserted into the construction platform. The corresponding insertion slot (23) on the platform (12) is then used to lift the installed support module frame (2) to a certain height using the lifting mechanism (5). The support module frame (2) is then placed between the installed support module frame (2) and the base frame (11). The insertion blocks (21) on the subsequently installed support module frame (2) are then inserted into the corresponding insertion slots (23) on the installed support module frame (2). This allows the height of the construction platform (12) to be adjusted according to the height of the construction position, greatly shortening the time required for the construction and dismantling of the operating platform and shortening the construction cycle.

2. The operating platform for highway tunnel construction according to claim 1, characterized in that: The drive assembly includes a bidirectional lead screw (13) and a drive source (14). The bidirectional lead screw (13) is rotatably mounted on the base (1), and the axial direction of the bidirectional lead screw (13) is parallel to the sliding direction of the two base frames (11). The two ends of the bidirectional lead screw (13) are threadedly engaged with the two base frames (11) respectively. The drive source (14) is used to drive the bidirectional lead screw (13) to rotate.

3. The operating platform for highway tunnel construction according to claim 1, characterized in that: The limiting component includes a plug-in block (21) and a limiting member (22). The plug-in block (21) is fixedly installed on the top wall of the support module frame (2). The construction platform (12) and the bottom wall of the support module frame (2) are both provided with plug-in slots (23). The plug-in slots (23) are adapted to the plug-in block (21). The plug-in slots (23) on the support module frame (2) are used for the insertion of the plug-in block (21) on the next support module frame (2). The limiting member (22) is used to prevent the plug-in block (21) from sliding in the plug-in slots (23).

4. The operating platform for highway tunnel construction according to claim 3, characterized in that: The limiting member (22) includes a limiting block. The side wall of the plug-in block (21) is provided with an installation groove. The limiting block is slidably disposed in the installation groove. The plug-in block (21) is provided with a first elastic member (211) for driving the limiting block to slide away from the plug-in block (21). The side wall of the plug-in groove (23) is provided with a limiting groove for the insertion of the limiting block. The limiting groove is provided with an ejector for ejecting the limiting block out of the limiting groove.

5. The operating platform for highway tunnel construction according to claim 4, characterized in that: The end of the limiting block away from the plug-in block (21) is provided with a guide slope (221), and the end of the limiting block away from the plug-in block (21) gradually approaches the plug-in block (21) in the direction away from the support module frame (2).

6. The operating platform for highway tunnel construction according to claim 4, characterized in that: The ejector includes a top block (24), which is slidably disposed in a limiting groove. A through hole is provided on the bottom wall of the limiting groove. A top rod (241) is rotatably disposed on the top block (24). The top rod (241) is slidably disposed in the through hole. A locking block (242) is fixedly disposed on the side wall of the top rod (241). A first locking groove (243) is provided on the side wall of the through hole along the length direction of the top rod (241). The locking block (242) is slidably disposed in the first locking groove (243). A second locking groove (244) communicating with the first locking groove (243) is provided on the side wall of the first locking groove (243) along the circumference of the top rod (241). The second locking groove (244) is used for the locking block (242) to be screwed in.

7. The operating platform for highway tunnel construction according to claim 3, characterized in that: The top wall of the base frame (11) is provided with a positioning groove, and a positioning block (115) is slidably arranged in the positioning groove along the direction perpendicular to the top wall of the base frame (11). A second elastic element (116) is provided on the base frame (11) to drive the positioning block (115) to slide away from the base frame (11). The position of the positioning block (115) corresponds to the position of the insertion groove (23) on the construction platform (12).

8. The operating platform for highway tunnel construction according to claim 1, characterized in that: The construction platform (12) is equipped with a ladder (121), which includes multiple ladder plates that are hinged in sequence. Guide blocks (1211) are fixedly installed on both sides of the ladder plates. Fixing blocks (122) are fixedly installed on both sides of the ladder plates on the construction platform (12). Slide grooves are opened at the ends of the two fixing blocks (122) that are close to each other. The guide blocks (1211) on both sides of the ladder plates are slidably installed in the slide grooves of the two fixing blocks (122). A first fixing member (123) is provided on the fixing block (122) to prevent the guide blocks (1211) from sliding. A second fixing member (113) is provided on the base frame (11) to fix the ladder plates.

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