A device for integral hoisting and splicing of a portal light steel structure roof truss unit

Abstract

The application provides a door type light steel structure roof truss unit overall hoisting splicing construction device, relates to the technical field of hoisting splicing construction devices, and comprises a hoisting head mechanism, the hoisting head mechanism comprises a support, two side plates are fixedly installed on one side of the support, shaft wheels are rotatably connected between the sides of the side plates, and two inclined plates are fixedly connected to the top of the support. The two rotating wheels and the shaft wheels are in the same horizontal plane, the rotating wheel movement can drive the rope movement, the structure at the bottom end of the rope can be moved, the fine adjustment can be quickly performed, the door type light steel structure roof truss unit overall fixed by the rope can be adjusted, the door type light steel structure roof truss unit overall can quickly reach the specified position, the installation convenience of the door type light steel structure roof truss unit overall is increased, the wear of the rope during movement can be reduced through the rotating wheel, the rope movement is more convenient through the rotating wheel, and the convenience of the equipment is increased.

Description

Technical Field

[0001] This invention relates to the field of hoisting and splicing construction equipment, and in particular to a hoisting and splicing construction equipment for a portal-type light steel structure roof truss unit. Background Technology

[0002] A portal frame lightweight steel roof truss unit refers to a building structure that uses lightweight steel as the main material and combines roof truss units into a unified whole through a portal frame design. This type of structure is commonly used in industrial plants, warehouses, exhibition halls, and other buildings. Portal frame lightweight steel structures typically consist of lightweight steel beams, columns, and connectors, and are characterized by their light weight, high strength, and ease of construction. By combining these components in a portal frame manner, a stable overall building frame can be formed. This design not only provides excellent structural support but also enables large-span coverage, improving the building's space utilization. While the portal frame light steel roof truss units are assembled using a crane, current applications often suffer from limitations. Although the crane can move the entire unit to a relative position, the movement is limited to a narrow range and cannot be perfectly positioned for assembly. Manual adjustments are required to transport the unit to the desired location. However, during crane adjustments, the crane's extension length is considerable, and the adjustment direction is limited. The distance from the crane hook is relatively far, resulting in even slight adjustments causing the entire portal frame roof truss unit to move further, making crane adjustments inconvenient. Although the crane's position can be controlled during the overall construction process of the portal frame roof truss unit, allowing for angle adjustments, this also presents the problem of the adjustment direction being far from the crane hook. Consequently, even slight adjustments result in the entire portal frame roof truss unit moving further. Therefore, a portal frame roof truss unit hoisting and splicing construction device is needed to solve these problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies. When assembling portal frame light steel roof truss units, a crane is used for hoisting and assembly. However, in practice, while the crane can move the entire portal frame light steel roof truss unit to a relative position, the movement is limited to a narrow range and cannot perfectly reach the desired assembly location. Operators are required to adjust the crane to transport the entire unit to the assembly position. Furthermore, the crane's extension length is relatively long during position adjustments. The adjustment direction is far from the crane hook, which means that even slight adjustments will cause the entire portal frame roof truss unit to move further, making crane adjustments inconvenient. Although the crane's position can be controlled during the overall construction process of the portal frame roof truss unit, allowing for angle adjustments, this also presents the problem of the adjustment direction being far from the crane hook, resulting in even slight adjustments causing the entire portal frame roof truss unit to move further.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a portal frame light steel structure roof truss unit integral hoisting and splicing construction device, including a hoisting head mechanism, the hoisting head mechanism including a support, two side plates fixedly installed on one side of the support, a roller rotatably connected between the side plates on one side, two inclined plates fixedly connected to the top of the support, a sliding roller rotatably connected between the two inclined plates on one side, a rope provided between the roller and the sliding roller, two limiting plates fixedly connected to the top of the support, multiple limiting rods provided between the two limiting plates on one side, the rope located between the two limiting plates, and an adjustment mechanism fixedly installed on one side of the support. The device includes two support plates, with a support shell rotatably connected to one side of each support plate. A motor is fixedly connected to the inner wall of the support shell, and a sliding shell is fixedly installed on one side of the support shell. A threaded rod is fixedly connected to the output end of the motor, and one end of the threaded rod rotatably penetrates into the interior of the sliding shell. Two sliding plates are slidably connected to the inner wall of the sliding shell. A connecting block is fixedly connected to one side of each of the two sliding plates. Two clamping plates are fixedly connected to one side of each of the two clamping plates. Two fixing plates are fixedly connected to one side of each of the two fixing plates. Two rotating wheels are rotatably connected to one side of each of the two fixing plates. The outer surfaces of the two rotating wheels are slidably connected to the outer surface of the rope. A rotating mechanism is provided on one side of the support shell.

[0005] In a preferred embodiment, a fixing block is fixedly connected to the inner wall of the sliding shell, one side of the fixing block is rotatably connected to one end of the threaded rod, a threaded block is slidably connected to the inner wall of the sliding shell, a threaded hole is opened on one side of the threaded block, the inner wall of the threaded hole is threadedly connected to the outer surface of the threaded rod, the outer surface of the threaded block is fixedly connected to one side of the sliding plate, and the fixing block and the sliding shell are slidably connected to the outer surface of the sliding plate.

[0006] In a preferred embodiment, the rotating mechanism includes two mounting slots at the bottom of the bracket, a rotating slot at the bottom of the bracket, and a groove on one side of the support shell, wherein a first gear is rotatably connected to the inner wall of the groove.

[0007] In a preferred embodiment, the inner wall of the rotating groove has two sliding grooves, and the inner wall of the sliding groove is slidably connected with a toothed array, one side of which slides through into the interior of the mounting groove.

[0008] In a preferred embodiment, the inner wall of the mounting groove is fixedly connected with a plurality of fixing sleeves, and a hydraulic rod is fixedly installed on the inner wall of the fixing sleeves, with one end of the hydraulic rod being fixedly connected to one side of the toothed rack.

[0009] In a preferred embodiment, a rotating rod is rotatably connected to the inner wall of the rotating groove, and two limiting gears are fixedly connected to the outer surface of the rotating rod. The limiting gears are meshed with the gear teeth, and a second gear is fixedly connected to the outer surface of the rotating rod. The second gear is meshed with the first gear.

[0010] In a preferred embodiment, a sliding groove is provided on one side of the toothed rack, and a sliding rod is slidably connected to the inner wall of the sliding groove, with one end of the sliding rod fixedly connected to the inner wall of the sliding groove.

[0011] In a preferred embodiment, the rotating mechanism further includes two arc-shaped plates. One side of each arc-shaped plate is fixedly connected to the outer surface of the sliding shell. An arc-shaped hole is provided at the top of each arc-shaped plate. An arc-shaped rod is slidably connected to the inner wall of the arc-shaped hole. Both ends of the arc-shaped rod are fixedly connected to the outer surface of the sliding shell.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0013] 1. In this invention, the bracket is fixed to the existing crane structure, replacing the traditional crane head. The rope passes between two limiting plates and is located at the bottom of the limiting rod. Then, it passes between the sliding roller and the axle wheel and moves towards the rotating wheel. The rope passes through the two rotating wheels. The two limiting plates can limit the rope, and the secondary limiting by the limiting rod can make the position of the rope more stable. No matter whether the rope is taut or loosely bent, the rope will not go out between the two limiting plates. At the same time, the axle wheel and the sliding roller can better limit the rope and reduce friction during sliding, so that the rope can slide better. The screw rod and screw block controlled by the motor cooperate with each other. The motor drives the screw rod to rotate, which drives the screw block to move. The screw block is limited by the sliding shell and the two sliding plates. The design avoids the threaded rod rotating and causing the threaded block to rotate. The movement of the threaded block can move the sliding plate, which in turn moves the connecting block, which in turn moves the clamping plate, which in turn moves the fixing plate, which in turn moves the two rotating wheels. Since the two rotating wheels and the shaft wheel are on the same horizontal plane, the movement of the rotating wheels can move the rope, which in turn moves the structure at the bottom of the rope. At this time, it is possible to quickly make fine adjustments to adjust the entire portal light steel structure roof truss unit that is fixed with the rope. This makes it easier for the entire portal light steel structure roof truss unit to quickly reach the designated position, increasing the overall ease of installation. The rotating wheels can reduce the wear on the rope during movement, and the rotation of the rotating wheels makes the rope movement easier, increasing the convenience of the equipment.

[0014] 2. In this invention, a sliding groove facilitates the movement of the gear rack and increases its structural stability, preventing bending during movement and extending its service life. A fixing sleeve secures the hydraulic rod, allowing it to be removed for maintenance after disconnection from the gear rack, making installation and disassembly easier. The fixing sleeve also enhances the hydraulic rod's structural stability. A rotating rod secures the limiting gear and the second gear, making their structures more stable. The rotating rod allows the limiting gear and the second gear to rotate, which in turn drives the second gear via the rotating rod. This rotation, in turn, drives the first gear, which in turn drives the support shell. This allows for adjustment of the rotating wheel. The arc-shaped hole on the arc-shaped plate interacts with the arc-shaped rod, allowing the arc-shaped plate to slide along the direction of the arc-shaped rod. The arc-shaped rod then supports the sliding shell, increasing its structural stability. Attached Figure Description

[0015] Figure 1This invention provides a perspective view of a portal-type light steel structure roof truss unit integral hoisting and splicing construction device;

[0016] Figure 2 The present invention provides a bottom-view perspective view of a portal-type light steel structure roof truss unit integral hoisting and splicing construction device;

[0017] Figure 3 This invention provides a three-dimensional sectional view of the support structure of a portal-type light steel structure roof truss unit integral hoisting and splicing construction device;

[0018] Figure 4 This invention provides a three-dimensional structural view of the installation slot of a portal-type light steel structure roof truss unit integral hoisting and splicing construction device;

[0019] Figure 5 This invention provides a three-dimensional structural view of the rotating mechanism of a portal-type light steel structure roof truss unit integral hoisting and splicing construction device;

[0020] Figure 6 This invention presents an exploded three-dimensional view of the toothed structure at the assembly tooth of a portal-type light steel structure roof truss unit hoisting and splicing construction device.

[0021] Legend:

[0022] 1. Lifting mechanism; 2. Adjustment mechanism;

[0023] 11. Bracket; 12. Side plate; 13. Axle wheel; 14. Inclined plate; 15. Sliding roller; 16. Limiting plate; 17. Limiting rod; 18. Rope;

[0024] 21. Support plate; 22. Support housing; 23. Motor; 24. Sliding housing; 25. Threaded rod; 26. Threaded block; 27. Slide plate; 28. Fixing block; 29. ​​Rotating mechanism; 210. Connecting block; 211. Clamping plate; 212. Fixing plate; 213. Rotating wheel;

[0025] 291. Groove; 292. First gear; 293. Mounting groove; 294. Rotating groove; 295. Sliding groove; 296. Arc plate; 297. Arc rod; 298. Fixing sleeve; 299. Hydraulic rod; 2910. Gear rack; 2911. Rotating rod; 2912. Limiting gear; 2913. Second gear; 2914. Sliding groove; 2915. Sliding rod. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] like Figure 1-6 As shown, the present invention provides a technical solution: a portal frame light steel structure roof truss unit overall hoisting and splicing construction device, including a hoisting mechanism 1, the hoisting mechanism 1 including a support 11, two side plates 12 fixedly installed on one side of the support 11, a shaft wheel 13 rotatably connected between the side plates 12 on one side, two inclined plates 14 fixedly connected to the top of the support 11, a sliding roller 15 rotatably connected between the two inclined plates 14 on one side, a rope 18 arranged between the shaft wheel 13 and the sliding roller 15, two limiting plates 16 fixedly connected to the top of the support 11, multiple limiting rods 17 arranged between the two limiting plates 16 on one side, the rope 18 located between the two limiting plates 16, an adjusting mechanism 2 fixedly installed on one side of the support 11, the adjusting mechanism 2 including two support plates 21, two... A support shell 22 is rotatably connected to one side of the support plate 21. A motor 23 is fixedly connected to the inner wall of the support shell 22. A sliding shell 24 is fixedly installed on one side of the support shell 22. A threaded rod 25 is fixedly connected to the output end of the motor 23. One end of the threaded rod 25 rotatably passes through the interior of the sliding shell 24. Two sliding plates 27 are slidably connected to the inner wall of the sliding shell 24. A connecting block 210 is fixedly connected between one side of the two sliding plates 27. Two clamping plates 211 are fixedly connected to one side of the connecting block 210. Two fixing plates 212 are fixedly connected between one side of the two clamping plates 211. Two rotating wheels 213 are rotatably connected between one side of the two fixing plates 212. The outer surfaces of the two rotating wheels 213 are slidably connected to the outer surface of the rope 18. A rotating mechanism 29 is provided on one side of the support shell 22.

[0029] Furthermore, a fixing block 28 is fixedly connected to the inner wall of the sliding shell 24. One side of the fixing block 28 is rotatably connected to one end of the threaded rod 25. A threaded block 26 is slidably connected to the inner wall of the sliding shell 24. A threaded hole is opened on one side of the threaded block 26. The inner wall of the threaded hole is threadedly connected to the outer surface of the threaded rod 25. The outer surface of the threaded block 26 is fixedly connected to one side of the sliding plate 27. The fixing block 28 and the sliding shell 24 are slidably connected to the outer surface of the sliding plate 27.

[0030] In the above embodiments, the bracket 11 is fixed to the existing crane structure, replacing the traditional crane head. The rope 18 passes between the two limiting plates 16 and is located at the bottom of the limiting rod 17. Then it passes between the sliding roller 15 and the shaft wheel 13 and moves towards the rotating wheel 213. The rope 18 passes through the two rotating wheels 213. The two limiting plates 16 can limit the rope 18. The secondary limiting by the limiting rod 17 can make the position of the rope 18 more stable. No matter whether the rope 18 is taut or loosely bent, the rope 18 will not go out between the two limiting plates 16. At the same time, the shaft wheel 13 and the sliding roller 15 can better limit the rope 18 and reduce friction during the sliding, so that the rope 18 can slide better. The threaded rod 25 and the threaded block 26 controlled by the motor 23 cooperate with each other. The motor 23 drives the threaded rod 25 to rotate, which drives the threaded block 26 to move. The threaded block 26 is connected to the sliding shell 24 and the two sliding plates. The limit switch 27 prevents the threaded rod 25 from rotating and causing the threaded block 26 to rotate. The movement of the threaded block 26 can drive the slide plate 27 to move. The movement of the slide plate 27 drives the connecting block 210 to move. The movement of the connecting block 210 drives the clamping plate 211 to move. The movement of the clamping plate 211 drives the fixing plate 212 to move. The movement of the fixing plate 212 drives the two rotating wheels 213 to move. Since the two rotating wheels 213 and the shaft wheel 13 are on the same horizontal plane, the movement of the rotating wheels 213 can drive the rope 18 to move, which in turn can drive the structure at the bottom of the rope 18 to move. At this time, it is possible to quickly make fine adjustments so that the entire portal light steel structure roof truss unit fixed by the rope 18 can be adjusted, making it easier for the entire portal light steel structure roof truss unit to quickly reach the designated position, increasing the overall ease of installation of the portal light steel structure roof truss unit. The rotating wheels 213 can reduce the wear of the rope 18 when it moves, and the rotation of the rotating wheels 213 makes it easier for the rope 18 to move, increasing the convenience of the equipment.

[0031] The rotating mechanism 29 includes two mounting slots 293 at the bottom of the bracket 11, a rotating slot 294 at the bottom of the bracket 11, and a groove 291 on one side of the support shell 22. The inner wall of the groove 291 is rotatably connected to a first gear 292.

[0032] Among them, the inner wall of the rotating groove 294 is provided with two sliding grooves 295, and the inner wall of the sliding groove 295 is slidably connected with a toothed rack 2910, and one side of the toothed rack 2910 slides through into the interior of the mounting groove 293.

[0033] Through the above embodiments, the slide groove 295 facilitates the movement of the toothed rack 2910. At the same time, the slide groove 295 can increase the structural stability of the toothed rack 2910, so that the toothed rack 2910 will not bend during the movement, thus increasing the service life of the toothed rack 2910.

[0034] Among them, multiple fixing sleeves 298 are fixedly connected to the inner wall of the mounting groove 293, and hydraulic rods 299 are fixedly installed on the inner wall of the fixing sleeves 298. One end of the hydraulic rods 299 is fixedly connected to one side of the toothed rack 2910.

[0035] Through the above embodiments, the fixing sleeve 298 is used to fix the hydraulic rod 299. At the same time, after the hydraulic rod 299 is removed from the toothed rack 2910, the fixing sleeve 298 can be removed to take out the hydraulic rod 299 for maintenance, making the installation and disassembly of the hydraulic rod 299 more convenient. In addition, the fixing sleeve 298 can also fix the hydraulic rod 299, increasing the structural stability of the hydraulic rod 299.

[0036] Among them, the inner wall of the rotating groove 294 is rotatably connected to the rotating rod 2911, and the outer surface of the rotating rod 2911 is fixedly connected to two limiting gears 2912. The limiting gears 2912 are meshed with the toothed rack 2910. The outer surface of the rotating rod 2911 is fixedly connected to the second gear 2913, and the second gear 2913 is meshed with the first gear 292.

[0037] Through the above embodiments, the rotating rod 2911 can fix the limiting gear 2912 and the second gear 2913, making the structure of the limiting gear 2912 and the second gear 2913 more stable. At the same time, the rotating rod 2911 can make the limiting gear 2912 and the second gear 2913 rotate. Then, by moving the gear rack 2910, the limiting gear 2912 can be rotated, which in turn drives the second gear 2913 to rotate through the rotating rod 2911. The rotation of the second gear 2913 can drive the first gear 292 to rotate, thereby driving the support shell 22 to rotate. At this time, the rotating wheel 213 can be adjusted.

[0038] Furthermore, a sliding groove 2914 is provided on one side of the toothed rack 2910, and a sliding rod 2915 is slidably connected to the inner wall of the sliding groove 2914. One end of the sliding rod 2915 is fixedly connected to the inner wall of the sliding groove 295.

[0039] Furthermore, the rotating mechanism 29 also includes two arc-shaped plates 296. One side of the arc-shaped plate 296 is fixedly connected to the outer surface of the sliding shell 24. An arc-shaped hole is opened at the top of the arc-shaped plate 296. An arc-shaped rod 297 is slidably connected to the inner wall of the arc-shaped hole. Both ends of the arc-shaped rod 297 are fixedly connected to the outer surface of the sliding shell 24.

[0040] Through the above embodiments, the arc-shaped hole on the arc-shaped plate 296 cooperates with the arc-shaped rod 297, allowing the arc-shaped plate 296 to slide along the direction of the arc-shaped rod 297. This allows the arc-shaped rod 297 to support the sliding shell 24, increasing its structural stability. In practical applications, the hydraulic rod 299 extends and retracts, causing the gear rack 2910 to move. The movement of the gear rack 2910 causes the limiting gear 2912 to rotate. The rotation of the limiting gear 2912 causes the rotating rod 2911 to rotate. The rotation of the rotating rod 2911 causes the second gear 2913 to rotate. The rotation of gear 292 drives the first gear 292 to rotate, which in turn drives the support shell 22 to rotate. The rotation of the support shell 22 drives the sliding shell 24 to rotate, which in turn drives the slide plate 27 to rotate. The rotation of the slide plate 27 drives the connecting block 210 to rotate, which in turn drives the clamping plate 211 to rotate. The rotation of the clamping plate 211 drives the fixing plate 212 to rotate, which in turn drives the rotating wheel 213 to rotate. At this time, the position of the rotating wheel 213 changes, which allows for a certain degree of adjustment of the position of the rotating wheel 213, thereby achieving another form of fine adjustment and increasing the versatility of the equipment.

[0041] Working principle:

[0042] like Figure 1-6As shown, in use, the screw rod 25 is rotated by the motor 23, which in turn moves the screw block 26. The screw block 26 is limited by the sliding shell 24 and the two sliding plates 27 to prevent the screw rod 25 from rotating and causing the screw block 26 to rotate. The movement of the screw block 26 can move the sliding plate 27, which in turn moves the connecting block 210. The movement of the connecting block 210 moves the clamping plate 211, which in turn moves the fixing plate 212. The movement of the fixing plate 212 moves the two rotating wheels 213. Since the two rotating wheels 213 are on the same horizontal plane as the shaft wheel 13, the movement of the rotating wheels 213 can move the rope 18, which in turn moves the structure at the bottom of the rope 18. At this time, fine adjustments can be made quickly to adjust the entire portal frame light steel structure roof truss unit fixed by the rope 18. This facilitates the quick arrival of the entire portal frame light steel structure roof truss unit at the designated position, increasing the overall ease of installation of the portal frame light steel structure roof truss unit. The rotating wheels 213 can reduce the... The reduced wear on the rope 18 during movement and the easier movement of the rope 18 via the rotating wheel 213 increase the convenience of the equipment. The extension and retraction of the hydraulic rod 299 drives the toothed rack 2910 to move, which in turn drives the limit gear 2912 to rotate. The rotation of the limit gear 2912 drives the rotating rod 2911 to rotate, which in turn drives the second gear 2913 to rotate. The rotation of the second gear 2913 drives the first gear 292 to rotate, which in turn drives the support shell 22 to rotate. The rotation of the support shell 22 drives the sliding shell 24 to rotate, which in turn drives the sliding plate 27 to rotate. The rotation of the sliding plate 27 drives the connecting block 210 to rotate, which in turn drives the clamping plate 211 to rotate. The rotation of the clamping plate 211 drives the fixing plate 212 to rotate, which in turn drives the rotating wheel 213 to rotate. At this time, the position of the rotating wheel 213 changes, which allows for a certain degree of adjustment of the position of the rotating wheel 213, thereby achieving another form of fine adjustment and increasing the versatility of the equipment.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A portal frame light steel structure roof truss unit integral hoisting and splicing construction device, comprising a hoisting head mechanism (1), characterized in that: The lifting mechanism (1) includes a bracket (11), two side plates (12) are fixedly installed on one side of the bracket (11), and a shaft wheel (13) is rotatably connected between the side plates (12) on one side. Two inclined plates (14) are fixedly connected to the top of the bracket (11), and a sliding roller (15) is rotatably connected between the two inclined plates (14) on one side. A rope (18) is provided between the shaft wheel (13) and the sliding roller (15). Two limiting plates (16) are fixedly connected to the top of the bracket (11), and multiple limiting rods (17) are provided between the two limiting plates (16) on one side. The rope (18) is located between the two limiting plates (16). An adjusting mechanism (2) is fixedly installed on one side of the bracket (11). The adjusting mechanism (2) includes two support plates (21), and a support shell (22) is rotatably connected between the two support plates (21) on one side. A motor (23) is fixedly connected to the inner wall of the support shell (22). A sliding shell (24) is fixedly installed on one side of the support shell (22). A threaded rod (25) is fixedly connected to the output end of the motor (23). One end of the threaded rod (25) rotates through the interior of the sliding shell (24). Two sliding plates (27) are slidably connected to the inner wall of the sliding shell (24). A connecting block (210) is fixedly connected between one side of the two sliding plates (27). Two clamping plates (211) are fixedly connected to one side of the connecting block (210). Two fixing plates (212) are fixedly connected between one side of the two clamping plates (211). Two rotating wheels (213) are rotatably connected between one side of the two fixing plates (212). The outer surfaces of the two rotating wheels (213) are slidably connected to the outer surface of the rope (18). A rotating mechanism (29) is provided on one side of the support shell (22).

2. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 1, characterized in that: A fixing block (28) is fixedly connected to the inner wall of the sliding shell (24). One side of the fixing block (28) is rotatably connected to one end of the threaded rod (25). A threaded block (26) is slidably connected to the inner wall of the sliding shell (24). A threaded hole is provided on one side of the threaded block (26). The inner wall of the threaded hole is threadedly connected to the outer surface of the threaded rod (25). The outer surface of the threaded block (26) is fixedly connected to one side of the sliding plate (27). The fixing block (28) and the sliding shell (24) are slidably connected to the outer surface of the sliding plate (27).

3. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 1, characterized in that: The rotating mechanism (29) includes two mounting slots (293) at the bottom of the bracket (11), a rotating slot (294) at the bottom of the bracket (11), and a groove (291) on one side of the support shell (22). The inner wall of the groove (291) is rotatably connected to a first gear (292).

4. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 3, characterized in that: The inner wall of the rotating groove (294) has two sliding grooves (295), and the inner wall of the sliding groove (295) is slidably connected with a toothed rack (2910), one side of which slides through into the interior of the mounting groove (293).

5. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 3, characterized in that: The inner wall of the mounting groove (293) is fixedly connected with a plurality of fixing sleeves (298), and a hydraulic rod (299) is fixedly installed on the inner wall of the fixing sleeve (298). One end of the hydraulic rod (299) is fixedly connected to one side of the toothed rack (2910).

6. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 3, characterized in that: The inner wall of the rotating groove (294) is rotatably connected to a rotating rod (2911). Two limiting gears (2912) are fixedly connected to the outer surface of the rotating rod (2911). The limiting gears (2912) are meshed with the gear rack (2910). A second gear (2913) is fixedly connected to the outer surface of the rotating rod (2911). The second gear (2913) is meshed with the first gear (292).

7. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 4, characterized in that: A sliding groove (2914) is provided on one side of the toothed rack (2910), and a sliding rod (2915) is slidably connected to the inner wall of the sliding groove (2914). One end of the sliding rod (2915) is fixedly connected to the inner wall of the sliding groove (295).

8. The portal frame light steel structure roof truss unit integral hoisting and splicing construction device according to claim 1, characterized in that: The rotating mechanism (29) also includes two arc-shaped plates (296). One side of the arc-shaped plate (296) is fixedly connected to the outer surface of the sliding shell (24). An arc-shaped hole is opened at the top of the arc-shaped plate (296). An arc-shaped rod (297) is slidably connected to the inner wall of the arc-shaped hole. Both ends of the arc-shaped rod (297) are fixedly connected to the outer surface of the sliding shell (24).

Images