A hoisting structure for highway construction

Abstract

The present invention relates to the technical field of hoisting structures, and particularly relates to a hoisting structure for road construction, including a hoisting frame with a hoisting opening fixedly installed at the top, and the hoisting opening is used for connecting with the hook of a hoisting device; a U-shaped pressing plate is slidably installed directly below the hoisting frame and is used for limiting both ends of the hoisted item; four groups of hoisting components are symmetrically installed on the sides of the hoisting frame in pairs. Each group of hoisting components includes a rotating roller located in the middle of the hoisting frame and a fixed roller located at the end of the hoisting frame. A hoisting rope is connected between each group of rotating rollers and fixed rollers, and a lifting hook is slidably installed on the hoisting rope. A driving motor for driving the rotating roller to rotate and wind the hoisting rope around the rotating roller is fixedly installed on the hoisting frame. In the present invention, both ends of the U-shaped pressing plate can limit the plate, and the U-shaped pressing plate has pressure on the upper part of the plate, reducing the shaking of the plate during hoisting.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting structures, and particularly to a hoisting structure for highway construction. Background Art

[0002] At the construction site of a highway, there are many pipes, steel plates, and construction materials with relatively large single-piece weights. It is difficult to transport the construction materials manually, and a hoisting device needs to be used to move the materials by lifting;

[0003] When hoisting plates, sling ropes are usually used to fix the stacked plates. Then, a crane is hung on the sling ropes to hoist the stacked plates. However, since the plates are stacked, the contact between the plates in the middle of the stack and the sling ropes is usually only on the side. The fixation of the plates in the middle by the sling ropes is not reliable, and the plates in the middle will inevitably shake during the hoisting process. For example, due to external factors, inertia during the hoisting process or swinging and floating during the hoisting process, dangerous accidents are likely to occur. Summary of the Invention

[0004] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a hoisting structure for highway construction, which can effectively solve the problem in the prior art that during the hoisting process of plates, due to the stacked placement of the plates, the contact between the plates in the middle of the stack and the sling ropes is usually only on the side, and the plates in the middle will inevitably shake during the hoisting process, and dangerous accidents are likely to occur.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] The present invention provides a hoisting structure for highway construction, including a hanging frame, with a hoisting opening fixedly installed at the top, and the hoisting opening is used for connecting with the hook of a hoisting device;

[0007] A U-shaped pressing plate, slidably installed directly below the hanging frame, is used for limiting both ends of the hoisted object;

[0008] Four groups of hoisting components are symmetrically installed on both sides of the hanging frame in pairs. Each group of hoisting components includes a rotating roller located in the middle of the hanging frame and a fixed roller located at the end of the hanging frame. A hoisting rope is connected between each group of rotating rollers and fixed rollers. A hook is slidably installed on the hoisting rope, and a driving motor for driving the rotating roller to rotate so that the hoisting rope is wound around the rotating roller is fixedly installed on the hanging frame.

[0009] Furthermore, an installation box is fixedly installed in the middle of the hanger, the drive motor is fixedly installed inside the installation box, a gear set is fixedly installed inside the installation box, two drive shafts are rotatably installed inside the installation box, the two drive shafts are respectively located on both sides of the drive motor and are connected to the drive motor through the gear set, both ends of the drive shaft are rotatable and extend out of the installation box and are connected to the rotating roller, and the drive motor drives the rotating roller to rotate through the drive shaft.

[0010] Furthermore, the U-shaped pressure plate opens downward, and a plurality of sliding rods are fixedly installed above the U-shaped pressure plate, and a plurality of fixed blocks are fixedly installed on the hanger. When the U-shaped pressure plate is installed under the hanger, each of the sliding rods slides through each fixed block respectively, and the sliding rods are provided with elastic parts for driving the U-shaped pressure plate to move downward relative to the hanger.

[0011] Furthermore, a limiting roller is coaxially fixedly mounted on the two driving shafts, a plurality of limiting protrusions are distributed in a circular array on the outer circumferential surface of the limiting roller, and a limiting block for clamping the limiting roller is arranged between the two driving shafts.

[0012] Furthermore, an elastic slide bar is fixedly installed below the limit block, and the lower end of the elastic slide bar passes through the bottom of the installation box and is located above the U-shaped pressure plate. Arc-shaped limit grooves are provided on both sides of the limit block, and a groove for clamping on the limit protrusion is provided on the inner wall of the limit groove. When the U-shaped pressure plate moves upward to the top, the upper end surface of the U-shaped pressure plate drives the limit block upward to press against the outer side of the limit roller.

[0013] Furthermore, a pressing assembly for pressing down the limit block is installed above the installation box, and the pressing assembly includes a lifting frame installed above the installation box for sliding up and down, the lower end of the lifting frame is located directly above the limit block, a spring for driving the lifting frame to move upward is arranged above the lifting frame, an extension rod is arranged above the lifting frame, the top of the extension rod passes through a connecting plate in the middle of the hanger, and a pressing rod for pressing the top of the extension rod is rotatably installed on the connecting plate.

[0014] Furthermore, a plurality of mounting holes are provided at the bends at both ends of the U-shaped pressure plate, and a rotating plate is rotatably installed inside each of the mounting holes. The rotating plate is used to fix the material inside the U-shaped pressure plate, and a guide plate is provided on the hanger for driving the lower end of the rotating plate to rotate toward the inside of the U-shaped pressure plate.

[0015] Further, the rotating plate includes a bent section and a vertical section. A rotating connection through hole for rotatably connecting with the U-shaped pressing plate is provided at the bent portion of the bent section. A sliding shaft is fixedly installed at the top of the vertical section. A guiding through hole is obliquely provided on the guiding plate. The sliding shaft is slidably installed inside the guiding through hole. During the upward movement of the U-shaped pressing plate, the guiding through hole guides the sliding shaft to move in a direction away from the middle of the hanging frame, causing the lower end of the rotating plate to rotate towards the inside of the U-shaped pressing plate.

[0016] Further, a bent groove is provided on the bent section of the rotating plate. The bent groove is located on the end face of the rotating plate away from the middle of the hanging frame. A protruding block is fixedly provided on the end face of the rotating plate facing the middle of the hanging frame.

[0017] The technical solution provided by the present invention has the following beneficial effects compared with the known public technologies:

[0018] 1. In the present invention, by installing a U-shaped pressing plate below the hanging frame, it is possible to prevent the sheet material from sliding towards both ends during the hoisting process, so that the sheet material is more stably restricted below the U-shaped pressing plate. Lifting components are provided on both sides of the U-shaped pressing plate. During the hoisting process of the stacked sheet materials, the stacked sheet materials are pulled upwards into the inside of the U-shaped pressing plate. The two ends of the U-shaped pressing plate can limit the sheet materials, and the U-shaped pressing plate has pressure on the upper part of the sheet materials, reducing the shaking of the sheet materials during the hoisting process.

[0019] 2. In the present invention, since the hook is slidably installed on the hoisting rope, it can slide to any position on the hoisting rope for suspension during use, and can hoist sheet materials of different sizes. In addition, since the sheet material is lifted off the ground and lowered to the ground by controlling the driving motor, the construction personnel can more stably control the hoisting or lowering of the sheet material on the ground, and can avoid damaging or bumping the sheet material during the hoisting or lowering process.

[0020] 3. In the present invention, by providing a sliding rod above the U-shaped pressing plate, the U-shaped pressing plate is slidably connected to the hanging frame through the sliding rod. At the same time, by providing an elastic member, a distance is maintained between the U-shaped pressing plate and the hanging frame under normal conditions. During the hoisting process, the upper part of the stacked sheet materials abuts against the inner wall of the top of the U-shaped pressing plate, so that the U-shaped pressing plate has a certain pressure on the upper part of the stacked sheet materials, which can make the friction force between each layer of sheet materials larger and reduce the relative sliding between each sheet material. In addition, since the total pressure required for compressing the plurality of elastic members by a unit distance is a fixed value, during each hoisting process, only by moving the U-shaped pressing plate upwards to the same position, it is possible to clearly understand the magnitude of the pressure of the U-shaped pressing plate on the upper part of the stacked sheet materials each time.

[0021] 4. In the present invention, by rotatably installing rotating plates at both ends of the U-shaped pressing plate and providing a guide plate on the hanging bracket to drive the rotation of the rotating plates, when the U-shaped pressing plate moves upward, the lower end of the rotating plate can rotate towards the plate inside the U-shaped pressing plate, enabling the rotating plate to more firmly squeeze and fix both ends of the hoisted plate. Additionally, since multiple groups of rotating plates are provided and the rotating plates are elastic, when clamping and fixing plates with uneven ends, each rotating plate can slightly deform according to the different sizes of the plate ends, providing more complete fixing and support for various positions at the plate ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is of the present invention Figure 1 is an enlarged schematic diagram of the structure at A;

[0025] Figure 3 is a schematic diagram of the perspective view from below of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the present invention with the U-shaped pressing plate removed;

[0027] Figure 5 is a schematic diagram of the overall structure of the U-shaped pressing plate of the present invention;

[0028] Figure 6 is a partial cross-sectional view of the present invention;

[0029] Figure 7 is a schematic diagram of the internal structure of the installation box of the present invention;

[0030] Figure 8 is a side view of the internal structure of the installation box of the present invention;

[0031] Figure 9 is a schematic diagram of the overall structure of the rotating plate of the present invention.

[0032] The reference numerals in the drawings respectively represent:

[0033] 1. Hanger; 11. Guide plate; 1101. Guide through hole; 12. Installation box; 13. Driving motor; 14. Limit roller; 15. Limit block; 151. Elastic sliding rod; 16. Gear set; 17. Connecting plate;

[0034] 2. U-shaped pressing plate; 201. Installation through hole; 21. Rotating plate; 2101. Rotating connection through hole; 2102. Bending groove; 211. Sliding shaft; 212. Protruding block; 213. Bending section; 214. Vertical section; 22. Sliding rod; 23. Fixed block; 24. Elastic member;

[0035] 3. Lifting assembly; 31. Rotating roller; 32. Fixed roller; 33. Lifting rope; 34. Driving shaft; 35. Hook;

[0036] 4. Pressing assembly; 41. Pressing rod; 42. Lifting frame; 421. Extending rod; 43. Spring. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The present invention will be further described below with reference to the embodiments.

[0039] Embodiment:

[0040] A hoisting structure for road construction, as Figure 1 - Figure 6 shown, includes a hanger 1 with a hoisting opening fixedly installed at the top, and the hoisting opening is used for connecting with the hook of a hoisting device;

[0041] A U-shaped pressing plate 2 is slidably installed directly below the hanger 1 and is used for limiting both ends of the hoisted item;

[0042] Four groups of hoisting assemblies 3 are symmetrically installed in pairs on the sides of the hanger 1. Each group of hoisting assemblies 3 includes a rotating roller 31 located in the middle of the hanger 1 and a fixed roller 32 located at the end of the hanger 1. A hoisting rope 33 is connected between each group of rotating rollers 31 and fixed rollers 32. A hook 35 is slidably installed on the hoisting rope 33. A driving motor 13 for driving the rotating roller 31 to rotate so that the hoisting rope 33 is wound around the rotating roller 31 is fixedly installed on the hanger 1.

[0043] In the present invention, by installing a U-shaped pressing plate 2 under the hanger 1, the plates can be prevented from sliding toward both ends during the lifting process, so that the plates are more stably restricted under the U-shaped pressing plate 2, and lifting components 3 are arranged on both sides of the U-shaped pressing plate 2. In the process of lifting the stacked plates, the lifting equipment is first driven to move the hanger 1 to the top of the stacked plates and descend to a specified height (a position slightly higher than the plates), and then the driving motor 13 is turned on to drive the rotating roller 31 to rotate to release the lifting rope 33, so that the hook 35 located on the lifting rope 33 can be hung at the lifting position at the bottom of the stacked plates (it can be a steel wire rope, or a steel plate with a side for inserting the hook 35 can be selected), and then the driving motor 13 is rotated in the opposite direction, so that the stacked plates are pulled upward to the inside of the U-shaped pressing plate 2, and the two ends of the U-shaped pressing plate 2 can limit the plates, and the U-shaped pressing plate 2 has pressure on the top of the plates to reduce the shaking of the plates during the lifting process, and then the lifting equipment can be driven to lift the hanger 1 and the plates below to the specified position.

[0044] It should be noted that since the hook 35 is slidably installed on the lifting rope 33, it can slide to any position on the lifting rope 33 for hanging during use, and plates of different sizes can be lifted. In addition, since the lifting of the plate from the ground and the lowering of the plate to the ground are both operated by controlling the drive motor 13 (no lifting equipment is required to lift or lower the plate directly from the ground), the construction personnel can control the lifting or lowering of the plate more smoothly on the ground, and avoid damaging or bumping the plate during the lifting or lowering process (the perspective of the lifting equipment makes it difficult to fully observe the ground conditions).

[0045] Furthermore, if Figure 6 and Figure 7 As shown, a mounting box 12 is fixedly installed in the middle of the hanger 1, the driving motor 13 is fixedly installed inside the mounting box 12, a gear set 16 is fixedly installed inside the mounting box 12, two driving shafts 34 are rotatably installed inside the mounting box 12, the two driving shafts 34 are respectively located on both sides of the driving motor 13 and are connected to the driving motor 13 through the gear set 16, both ends of the driving shaft 34 are rotatably extended out of the mounting box 12 and connected to the rotating roller 31, and the driving motor 13 drives the rotating roller 31 to rotate through the driving shaft 34.

[0046] Among them, by fixing the driving motor 13 inside the hanger 1, and making the driving motor 13 drive the rotating rollers 31 to rotate synchronously through two driving shafts 34, the two ends and both sides of the plate can be raised to the same height at the same time during the lifting process, which can reduce the shaking of the plate caused by the lifting tilt.

[0047] Furthermore, if Figure 5As shown, the U-shaped pressing plate 2 has an opening facing downward. A plurality of sliding rods 22 are fixedly installed above the U-shaped pressing plate 2. A plurality of fixing blocks 23 are fixedly installed on the hanging frame 1. When the U-shaped pressing plate 2 is installed below the hanging frame 1, each of the sliding rods 22 respectively slides through each of the fixing blocks 23. An elastic member 24 for driving the U-shaped pressing plate 2 to move downward relative to the hanging frame 1 is sleeved on the sliding rod 22.

[0048] Among them, by arranging the sliding rods 22 above the U-shaped pressing plate 2, the U-shaped pressing plate 2 is slidably connected to the hanging frame 1 through the sliding rods 22. At the same time, by arranging the elastic members 24, a distance is maintained between the U-shaped pressing plate 2 and the hanging frame 1 under normal conditions. During the hoisting process, the upper part of the stacked plates abuts against the inner wall of the top of the U-shaped pressing plate 2, so that the U-shaped pressing plate 2 has a certain pressure on the upper part of the stacked plates, which can make the friction between each layer of plates larger and reduce the relative sliding between each plate. In addition, since the total pressure required during the process of compressing the plurality of elastic members 24 by a unit distance is a fixed value, during each hoisting process, only by moving the U-shaped pressing plate 2 upward to the same position, the pressure magnitude of the U-shaped pressing plate 2 on the upper part of the stacked plates can be clearly understood (the pressure required for pressing the plates can be controlled by controlling the rising position of the U-shaped pressing plate 2 according to the pressing requirements of different plates).

[0049] Further, as Figure 6 and Figure 7 shown, limit rollers 14 are coaxially and fixedly installed on both of the drive shafts 34. A plurality of limit protrusions are circumferentially and arrayedly distributed on the outer peripheral surface of the limit rollers 14. A limit block 15 for clamping the limit rollers 14 is arranged between the two drive shafts 34.

[0050] Among them, by fixedly installing the limit rollers 14 on the drive shafts 34 and arranging the limit protrusions on the outside of the limit rollers 14, after the drive shafts 34 rotate to lift the plates in place (during the initial lifting, only the plates are lifted off the ground, and at this time the hoisting equipment has not started hoisting), by controlling the limit block 15 to be clamped on the outside of the limit rollers 14, it is ensured that the drive shafts 34 do not rotate during the hoisting process, and the plates fixed below the hanging frame 1 can be prevented from loosening during the hoisting process (equivalent to adding an additional safety measure).

[0051] Further, as Figure 7 and Figure 8 shown, an elastic sliding rod 151 is fixedly installed below the limit block 15. The lower end of the elastic sliding rod 151 passes through the bottom of the installation box 12 and is located above the U-shaped pressing plate 2. Circular arc-shaped limit grooves are arranged on both sides of the limit block 15. Grooves for clamping the limit protrusions are arranged on the inner wall of the limit grooves. When the U-shaped pressing plate 2 moves upward to the top, the upper end surface of the U-shaped pressing plate 2 drives the limit block 15 to move upward to abut against the outside of the limit rollers 14.

[0052] Among them, by fixedly installing an elastic sliding rod 151 below the limiting block 15 and passing the lower part of the elastic sliding rod 151 through the bottom of the installation box 12 and locating it above the U-shaped pressing plate 2, during the hoisting process (initial lifting), the upward movement of the U-shaped pressing plate 2 is utilized to drive the elastic sliding rod 151 to move upward, so that the limiting block 15 is stably stuck outside the limiting roller 14, and the driving shaft 34 is firmly fixed.

[0053] Further, as Figure 6 、 Figure 7 and Figure 8 shown, a pressing assembly 4 for pressing the limiting block 15 is installed above the installation box 12. The pressing assembly 4 includes a lifting frame 42 slidably installed up and down above the installation box 12. The lower end of the lifting frame 42 is located directly above the limiting block 15. A spring 43 for driving the lifting frame 42 to move upward is arranged above the lifting frame 42. An extension rod 421 is arranged above the lifting frame 42. The upper part of the extension rod 421 passes through a connecting plate 17 in the middle of the hanging frame 1. A pressing rod 41 for pressing the upper part of the extension rod 421 is rotatably installed on the connecting plate 17.

[0054] Among them, by slidably installing the lifting frame 42 up and down above the installation box 12 and arranging the pressing rod 41 above the lifting frame 42, in the initial state, the lifting frame 42 is located at the highest point driven by the spring 43. By pressing down the pressing rod 41, the lifting frame 42 can be driven to move downward. After moving the stacked plates to the designated position, by pressing down the pressing rod 41, the lifting frame 42 moves downward, so that the lower part of the lifting frame 42 abuts against the top of the limiting block 15, driving the limiting block 15 to move downward (when the downward pressure on the elastic sliding rod 151 below the limiting block 15 is relatively large, it can contract for a short distance. It is a common elastic rod in the prior art and will not be elaborated herein), canceling the restriction of the limiting block 15 on the limiting roller 14 and allowing the driving shaft 34 to rotate.

[0055] Further, as Figure 1 、 Figure 2 and Figure 5 shown, a plurality of installation through holes 201 are arranged at the bent parts at both ends of the U-shaped pressing plate 2. A rotating plate 21 is rotatably installed inside each installation through hole 201. The rotating plate 21 is used for fixing the materials inside the U-shaped pressing plate 2. A guide plate 11 for driving the lower end of the rotating plate 21 to rotate towards the inside of the U-shaped pressing plate 2 is arranged on the hanging frame 1.

[0056] Further, as Figure 5 and Figure 9As shown, the rotating plate 21 includes a bent section 213 and a vertical section 214. A rotating connection through hole 2101 for rotatably connecting with the U-shaped pressing plate 2 is provided at the bent portion of the bent section 213. A sliding shaft 211 is fixedly installed at the top of the vertical section 214. A guiding through hole 1101 is obliquely provided on the guiding plate 11. The sliding shaft 211 is slidably installed inside the guiding through hole 1101. During the upward movement of the U-shaped pressing plate 2, the guiding through hole 1101 guides the sliding shaft 211 to move away from the middle of the hanging frame 1, causing the lower end of the rotating plate 21 to rotate towards the inside of the U-shaped pressing plate 2.

[0057] Among them, by rotatably installing the rotating plate 21 at both ends of the U-shaped pressing plate 2 and arranging the guiding plate 11 for driving the rotation of the rotating plate 21 on the hanging frame 1, during the upward movement of the U-shaped pressing plate 2, the lower end of the rotating plate 21 can be rotated towards the plate inside the U-shaped pressing plate 2, enabling the rotating plate 21 to more firmly squeeze and fix both ends of the hoisted plate. In addition, since multiple groups of rotating plates 21 are provided (as shown in Figure 5 ), and the rotating plate 21 has elasticity, when clamping and fixing plates with uneven ends, each rotating plate 21 can undergo slight deformation according to the different sizes of the plate ends, more completely fixing and supporting each position of the plate end.

[0058] Furthermore, as shown in Figure 9 , a bending groove 2102 is provided on the bent section 213 of the rotating plate 21. The bending groove 2102 is located on the end face of the rotating plate 21 away from the middle of the hanging frame 1. A protruding block 212 is fixedly provided on the end face of the rotating plate 21 facing the middle of the hanging frame 1.

[0059] Among them, by providing the bending groove 2102 on the back of the rotating plate 21, when the lower end of the rotating plate 21 presses against the plate, it can more easily deform, enabling the rotating plate 21 to provide more upward supporting force to the plate (realized through the protruding block 212).

[0060] Working principle: During the hoisting process of stacked plates, first drive the hoisting equipment to move the hanging frame 1 directly above the stacked plates and lower it to a specified height (slightly higher than the plates). Then, turn on the drive motor 13 to drive the rotating roller 31 to rotate and release the hoisting rope 33, so that the hook 35 on the hoisting rope 33 can be suspended at the hoisting position at the bottom of the stacked plates. Then, reverse the rotation of the drive motor 13 to pull the stacked plates upward into the U-shaped pressing plate 2. During this process, the plates will squeeze the inner wall of the U-shaped pressing plate 2 to drive the U-shaped pressing plate 2 to move upward synchronously. When the U-shaped pressing plate 2 abuts against the elastic sliding rod 151 below the limit block 15, it will drive the limit block 15 to move upward and lock the drive shaft 34. In addition, when the U-shaped pressing plate 2 moves upward, it will also drive the lower end of the rotating plate 21 to rotate inward into the U-shaped pressing plate 2 to more firmly fix the plates inside the U-shaped pressing plate. Then, the hoisting equipment can be driven to hoist the hanging frame 1 and the plates below to the specified position.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the present invention in each embodiment.

Claims

1. A hoisting structure for highway construction, characterized in that: include: A hanger (1) having a hanging opening fixedly mounted on the top, the hanging opening being used to be connected to a hook of a lifting device; A U-shaped pressure plate (2) is slidably mounted directly below the hanger (1) and is used to limit the positions of both ends of the hoisted object; Four groups of lifting components (3) are symmetrically mounted on the sides of the hanger (1), each group of lifting components (3) comprises a rotating roller (31) located in the middle of the hanger (1) and a fixed roller (32) located at the end of the hanger (1), a lifting rope (33) is connected between each group of rotating rollers (31) and the fixed roller (32), a lifting hook (35) is slidably mounted on the lifting rope (33), and a driving motor (13) is fixedly mounted on the hanger (1) for driving the rotating roller (31) to rotate so that the lifting rope (33) is wound around the rotating roller (31); A mounting box (12) is fixedly installed in the middle of the hanger (1), the driving motor (13) is fixedly installed inside the mounting box (12), a gear set (16) is fixedly installed inside the mounting box (12), two driving shafts (34) are rotatably installed inside the mounting box (12), the two driving shafts (34) are respectively located on both sides of the driving motor (13) and are connected to the driving motor (13) through the gear set (16), both ends of the driving shaft (34) are rotatably extended out of the mounting box (12) and are connected to the rotating roller (31), and the driving motor (13) drives the rotating roller (31) to rotate through the driving shaft (34); The U-shaped pressing plate (2) opens downwards, a plurality of sliding rods (22) are fixedly mounted above the U-shaped pressing plate (2), a plurality of fixing blocks (23) are fixedly mounted on the hanger (1), and when the U-shaped pressing plate (2) is mounted below the hanger (1), each of the sliding rods (22) slides through each of the fixing blocks (23), and an elastic member (24) is mounted on the sliding rods (22) for driving the U-shaped pressing plate (2) to move downward relative to the hanger (1); A limiting roller (14) is coaxially fixedly mounted on each of the two driving shafts (34); a plurality of limiting protrusions are distributed in a circular array on the outer circumferential surface of the limiting roller (14); and a limiting block (15) for clamping the limiting roller (14) is provided between the two driving shafts (34); An elastic slide bar (151) is fixedly installed below the limit block (15), and the lower end of the elastic slide bar (151) passes through the bottom of the installation box (12) and is located above the U-shaped pressure plate (2). Arc-shaped limit grooves are provided on both sides of the limit block (15), and a groove for clamping on the limit protrusion is provided on the inner wall of the limit groove. When the U-shaped pressure plate (2) moves upward to the top, the upper end surface of the U-shaped pressure plate (2) drives the limit block (15) upward to press against the outer side of the limit roller (14); A pressing assembly (4) for pressing down the limit block (15) is installed above the installation box (12), and the pressing assembly (4) comprises a lifting frame (42) slidably installed above the installation box (12), the lower end of the lifting frame (42) being located directly above the limit block (15), a spring (43) for driving the lifting frame (42) to move upward is arranged above the lifting frame (42), and a protruding rod (421) is arranged above the lifting frame (42), the top of the protruding rod (421) passes through a connecting plate (17) in the middle of the hanger (1), and a pressing rod (41) for pressing the top of the protruding rod (421) is rotatably installed on the connecting plate (17).

2. A hoisting structure for highway construction according to claim 1, characterized in that: A plurality of mounting through holes (201) are provided at the bends at both ends of the U-shaped pressing plate (2), a rotating plate (21) is rotatably mounted inside each of the mounting through holes (201), the rotating plate (21) being used to fix the material inside the U-shaped pressing plate (2), and a guide plate (11) is provided on the hanger (1) for driving the lower end of the rotating plate (21) to rotate toward the inside of the U-shaped pressing plate (2).

3. A hoisting structure for highway construction according to claim 2, characterized in that: The rotating plate (21) comprises a bent section (213) and a vertical section (214); a rotating connection through hole (2101) for rotationally connecting with the U-shaped pressure plate (2) is provided at the bent portion of the bent section (213); a sliding shaft (211) is fixedly installed at the top of the vertical section (214); a guide through hole (1101) is obliquely provided on the guide plate (11); the sliding shaft (211) is slidably installed inside the guide through hole (1101); when the U-shaped pressure plate (2) moves upward, the guide through hole (1101) guides the sliding shaft (211) to move in a direction away from the middle of the hanger (1), so that the lower end of the rotating plate (21) rotates toward the inside of the U-shaped pressure plate (2).

4. A hoisting structure for highway construction according to claim 3, characterized in that: A bending groove (2102) is provided on the bending section (213) of the rotating plate (21), and the bending groove (2102) is located at the end surface of the rotating plate (21) away from the middle of the hanger (1), and a protruding block (212) is fixedly provided on the end surface of the rotating plate (21) facing the middle of the hanger (1).

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