A hoisting device for steel structure construction

Abstract

The present invention discloses a hoisting device for steel structure construction, which relates to the technical field of building construction. The present invention includes a base and a hoisting mechanism. A regulating support plate is hinged to the top of the base. Adjusting wheels are arranged in an array on the top of the regulating support plate. A weighing mechanism is arranged on the top of the base. It also includes telescopic screws rotatably installed on both sides of the regulating support plate. Telescopic bottom blocks are threadedly connected to the outer sides of the two groups of telescopic screws. The two groups of hoisting mechanisms can be respectively installed on the two groups of telescopic bottom blocks, and the hoisting mechanism can automatically clamp the outside of the steel structure. In the present invention, by placing the steel structure on the top of the regulating support plate and pressing it on the adjusting wheels, then the weighing mechanism detects the weight difference between the two ends of the regulating support plate, controls the operation of the adjusting wheels according to the detection result, and the adjusting wheels drive the steel structure to move, so that the center of gravity of the steel structure coincides with the center of the regulating support plate. After coincidence, there is no weight difference between the two ends of the regulating support plate, and thus the hoisting center can be automatically found.

Description

Technical Field

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

[0002] Modular building is a new building structure system. In this system, each room is used as a modular unit, which is prefabricated in a factory, transported to the site after completion, and assembled into an integral building through reliable connection methods. During the modular building process, a hoisting device is required to hoist prefabricated steel structures.

[0003] Before hoisting a steel structure, in order to ensure the hoisting stability, it is necessary to first find the center of gravity of the steel structure so that the hook and the center of gravity of the steel structure are on the same vertical line. Currently, it is usually manual to find the center of gravity of the steel structure through calculation, which not only has low efficiency and poor accuracy, but also after finding the center of gravity, it is necessary to ensure that the hoisting position is symmetric about the center of gravity, and the accuracy of manually adjusting the hoisting position is low. Summary of the Invention

[0004] The purpose of the present invention is to provide a hoisting device for steel structure construction to solve the problems of inability to automatically determine the center of gravity of the steel structure, low hoisting efficiency, low accuracy of manually adjusting the hoisting position, and inconvenient hoisting.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] A hoisting device for steel structure construction includes a base and a hoisting mechanism. The top of the base is hinged with an adjusting support plate. The top of the adjusting support plate is provided with adjusting wheels driven by a motor in an array. The top of the base is provided with a weighing mechanism, which can detect the weight difference between the two ends of the adjusting support plate and control the operation of the adjusting wheels.

[0007] It further includes telescopic screws rotatably installed on both sides of the adjusting support plate. Both groups of telescopic screws are driven by a motor. The outer sides of both groups of telescopic screws are threadedly connected with telescopic bottom blocks. The hoisting mechanism is divided into two groups, and the two groups of hoisting mechanisms can be respectively installed on the two telescopic bottom blocks. The hoisting mechanism can automatically clamp on the outside of the steel structure.

[0008] Further, the weighing mechanism includes a chute opened on the top of the base. A weight sensor is installed inside the chute. A top block in contact with the weight sensor is slidably connected inside the chute. The top of the top block is hinged with a support rod, and the support rod is hinged on the outside of the adjusting support plate.

[0009] It further includes a controller installed on the top of the base. The controller can receive the electrical signal of the weight sensor and control the rotation direction and rotation time of the adjusting wheels according to the electrical signal.

[0010] Further, the hoisting mechanism includes a transmission bottom plate on the telescopic bottom block. A rotatable upper screw rod is provided on the top of the transmission bottom plate. The top of the upper screw rod is threadedly connected with an upper nut sleeve. The top of the upper nut sleeve is fixedly connected with an upper clamping plate. The upper clamping plate is divided into two groups, and the two groups of upper clamping plates are connected by a telescopic rod. A rotatable lower screw rod is provided on the left side of the transmission bottom plate. The outer side of the lower screw rod is threadedly connected with a lower nut sleeve. The outer side of the lower nut sleeve is fixedly connected with a lower clamping plate. The lower clamping plate is connected with the left upper clamping plate by a telescopic rod.

[0011] Further, hoisting rings are provided on the outer sides of the two groups of upper clamping plates.

[0012] Further, a rotatable rotating shaft is rotatably installed inside the transmission bottom plate. A driving wheel is provided on the outer side of the rotating shaft. Bevel gears meshing with the driving wheel are provided on the outer sides of the upper screw rod and the lower screw rod.

[0013] Further, a rotatable transmission shaft is provided on the top of the telescopic bottom block. A transmission sleeve sleeved on the transmission shaft is rotatably installed on the top of the transmission bottom plate. Key grooves are formed in the inner wall of the transmission sleeve. A shaft key inserted into the key grooves is provided on the outer side of the transmission shaft. A worm is fixedly connected to the top of the transmission sleeve. A worm gear meshing with the worm is provided on the outer side of the rotating shaft.

[0014] Further, a nut wheel meshing with the telescopic screw rod is rotatably installed inside the telescopic bottom block. Buffer card slots are formed on the outer side of the nut wheel. Buffer sliding grooves are formed in the inner wall of the telescopic bottom block. A buffer block inserted into the buffer card slots is slidably connected inside the buffer sliding grooves. A buffer spring is provided between the buffer block and the inner wall of the buffer sliding groove. A bevel gear is provided on the outer side of the nut wheel. A transmission wheel meshing with the bevel gear is provided at the bottom of the transmission shaft.

[0015] Further, a guiding bottom hole is formed at the bottom of the lower clamping plate. Clamping sliding grooves are formed on the outer side of the adjusting support plate. A guiding bottom block slidably connected to the outer side of the supporting guide post is slidably connected inside the clamping sliding grooves. A bottom rod inserted into the guiding bottom hole is fixedly connected to the top of the guiding bottom block.

[0016] Further, the transmission bottom plate, the two groups of upper clamping plates and the lower clamping plate are all designed in an L shape and can respectively wrap the four corners of the steel structure.

[0017] Further, when the transmission bottom plate is installed on the telescopic bottom block, the upper plane of the transmission bottom plate is lower than the upper surface of the adjusting wheel.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, the steel structure is placed on the top of the adjusting pallet and pressed on the adjusting wheels. Then, the weighing mechanism detects the weight difference between the two ends of the adjusting pallet, controls the operation of the adjusting wheels based on the detection result, and the adjusting wheels drive the steel structure to move, so that the center of gravity of the steel structure coincides with the center of the adjusting pallet. After coincidence, there is no weight difference between the two ends of the adjusting pallet, and thus the lifting center can be automatically found, and the lifting efficiency is high.

[0020] 2. In the present invention, by controlling the rotation of the telescopic screw rods, the two groups of telescopic screw rods drive the two groups of telescopic bottom blocks to move synchronously and in opposite directions. The telescopic bottom blocks drive the two groups of lifting mechanisms to move, and the two groups of lifting mechanisms move synchronously and in opposite directions relative to the steel structure, so that the two groups of lifting mechanisms can be symmetric about the lifting center, and the lifting position can be accurately found, making the lifting convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 is a three-dimensional schematic diagram of the base part of the present invention;

[0023] Figure 3 is the present invention Figure 2 an enlarged schematic diagram of part B in;

[0024] Figure 4 is a cross-sectional schematic diagram of the telescopic bottom block of the present invention;

[0025] Figure 5 is a top view axonometric schematic diagram of the lifting mechanism of the present invention;

[0026] Figure 6 is a bottom view axonometric schematic diagram of the lifting mechanism of the present invention;

[0027] Figure 7 is a front view schematic diagram of the lifting mechanism of the present invention;

[0028] Figure 8 is a right view schematic diagram of the lifting mechanism of the present invention;

[0029] Figure 9 is the present invention Figure 8 an enlarged schematic diagram of part A in;

[0030] Figure 10 is a schematic diagram of the steel structure lifting of the present invention.

[0031] Reference numerals: 1, base; 2, adjusting support plate; 3, adjusting wheel; 4, weight sensor; 5, controller; 6, support rod; 7, top block; 8, telescopic screw; 9, support guide post; 10, telescopic bottom block; 11, transmission shaft; 12, guide bottom block; 13, bottom rod; 14, nut wheel; 15, buffer card slot; 16, buffer card block; 17, buffer spring; 18, transmission wheel; 19, hoisting mechanism; 191, transmission bottom plate; 192, upper screw; 193, upper nut sleeve; 194, upper clamping plate; 195, hoisting ring; 196, lower screw; 197, lower nut sleeve; 198, lower clamping plate; 199, guide bottom hole; 1910, transmission sleeve; 1911, worm; 1912, rotating shaft; 1913, worm gear; 1914, driving wheel. Detailed implementation mode

[0032] 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.

[0033] As Figures 1-10 shown, a hoisting device for steel structure construction includes a base 1 and a hoisting mechanism 19. An adjusting support plate 2 is hinged to the top of the base 1. Adjusting wheels 3 driven by a motor are arranged in a row on the top of the adjusting support plate 2. A weighing mechanism is arranged on the top of the base 1. The weighing mechanism can detect the weight difference between the two ends of the adjusting support plate 2 and can control the operation of the adjusting wheels 3.

[0034] The device further includes telescopic screws 8 rotatably installed on both sides of the adjusting support plate 2. Both groups of telescopic screws 8 are driven by a motor. Telescopic bottom blocks 10 are threadedly connected to the outer sides of both groups of telescopic screws 8. The hoisting mechanism 19 is divided into two groups. The two groups of hoisting mechanisms can be respectively installed on the two groups of telescopic bottom blocks 10. The hoisting mechanism 19 can automatically clamp the outside of the steel structure.

[0035] Before hoisting, first place the steel structure on the adjusting wheels 3 on the adjusting support plate 2, and then the weighing mechanism detects the weight difference between the two ends of the adjusting support plate 2. The operation of the adjusting wheels 3 is controlled through the detection result. The adjusting wheels 3 drive the steel structure to move, so that the center of gravity of the steel structure coincides with the center of the adjusting support plate 2. After coincidence, there is no weight difference between the two ends of the adjusting support plate 2, and thus the hoisting center can be automatically found, and the hoisting efficiency is high;

[0036] After the hoisting center is found, the telescopic screw rod 8 is rotated by the motor control. The two groups of telescopic screw rods 8 drive the two groups of telescopic bottom blocks 10 to move synchronously and in opposite directions. The telescopic bottom blocks 10 drive the two groups of hoisting mechanisms 19 to move. The two groups of hoisting mechanisms 19 move synchronously and in opposite directions relative to the steel structure, so that the two groups of hoisting mechanisms can be symmetric about the hoisting center, and the hoisting position can be accurately found, which is convenient for hoisting. After the hoisting position is found, the hoisting mechanism 19 is controlled to operate. The hoisting mechanism 19 is clamped on the outside of the steel structure. By connecting a steel rope to the hoisting mechanism 19, while ensuring the stability of hoisting, the steel structure can be prevented from being scratched by the steel rope.

[0037] As Figure 1 shown, in some embodiments, the weighing mechanism includes a chute opened on the top of the base 1. A weight sensor 4 is installed inside the chute. A top block 7 that abuts against the weight sensor 4 is slidably connected inside the chute. A support rod 6 is hinged to the top of the top block 7. The support rod 6 is hinged to the outside of the adjusting support plate 2;

[0038] It also includes a controller 5 installed on the top of the base 1. The controller 5 can receive the electrical signal of the weight sensor 4 and control the rotation direction and rotation time of the adjusting wheel 3 according to the electrical signal.

[0039] When the center of gravity of the steel structure does not coincide with the center of the adjusting support plate 2, the steel structure gives an inclined pressure to the adjusting support plate 2. The pressures applied by the adjusting support plate 2 to the two side support rods 6 are different. The pressure on the support rod 6 on the same side as the center of gravity of the steel structure is greater. This side support rod 6 gives a greater pressure to the weight sensor 4 through the top block 7. The two side weight sensors 4 detect the weight and transmit the weight to the controller 5 through an electrical signal. The controller 5 controls the rotation of the adjusting wheel 3. When the center of gravity of the steel structure coincides with the center of the adjusting support plate 2, the pressures received by the two side weight sensors 4 are the same. At this time, the adjusting wheel 3 stops rotating, and thus the hoisting center can be accurately found, which is convenient for hoisting;

[0040] At the same time, under the action of the two side support rods 6 and the top block 7, sufficient support force is given to the adjusting support plate 2 to prevent the adjusting support plate 2 from tipping over, and the adjustment is stable.

[0041] As Figure 5 shown, in some embodiments, the hoisting mechanism includes a transmission bottom plate 191 that can be on the telescopic bottom block 10. A rotatable upper screw rod 192 is provided on the top of the transmission bottom plate 191. The top of the upper screw rod 192 is threadedly connected with an upper nut sleeve 193. The top of the upper nut sleeve 193 is fixedly connected with an upper clamping plate 194. The upper clamping plate 194 is divided into two groups. The two groups of upper clamping plates 194 are connected by a telescopic rod. A rotatable lower screw rod 196 is provided on the left side of the transmission bottom plate 191. The outside of the lower screw rod 196 is threadedly connected with a lower nut sleeve 197. The outside of the lower nut sleeve 197 is fixedly connected with a lower clamping plate 198. The lower clamping plate 198 and the left upper clamping plate 194 are connected by a telescopic rod.

[0042] The transmission base plate 191, two sets of upper clamping plates 194 and lower clamping plates 198 are sleeved on the outside of the steel structure, and the transmission base plate 191 is installed on the telescopic base block 10. When the telescopic base block 10 drives the transmission base plate 191, two sets of upper clamping plates 194 and lower clamping plates 198 to move to the steel structure hoisting position, the upper screw rod 192 is controlled to rotate, and the upper screw rod 192 drives the upper clamping plate 194 to descend through the upper nut sleeve 193, and the upper clamping plate 194 is clamped on the steel structure. The two groups of upper clamping plates 194 are synchronously clamped on the upper surface of the steel structure under the action of the telescopic rod, and the lower screw 196 is controlled to rotate at the same time. The lower screw 196 drives the lower clamping plate 198 to be clamped on the steel structure through the lower nut sleeve 197. The lower clamping plate 198 drives the left upper clamping plate 194 to be clamped on the left side of the steel structure through the telescopic rod, ensuring that the transmission base plate 191, the two groups of upper clamping plates 194 and the lower clamping plate 198 can be distributed and clamped around the steel structure, and the clamping is stable.

[0043] like Figure 5 As shown, in some embodiments, the outer sides of the two sets of upper clamping plates 194 are provided with lifting rings 195. The setting of the lifting rings 195 facilitates connection with steel ropes and facilitates lifting.

[0044] like Figure 8 , Figure 9 As shown, in some embodiments, a rotating shaft 1912 that can rotate automatically is installed inside the transmission base plate 191, a driving wheel 1914 is arranged on the outside of the rotating shaft 1912, and bevel gears meshing with the driving wheel 1914 are arranged on the outside of the upper screw 192 and the lower screw 196.

[0045] The rotating shaft 1912 rotates, and the rotating shaft 1912 drives the driving wheel 1914 to rotate. The driving wheel 1914 drives the upper screw 192 and the lower screw 196 to rotate through the bevel gear, thereby synchronously controlling the clamping of the upper clamping plate 194 and the lower clamping plate 198, with high clamping efficiency and compact structure.

[0046] like Figure 9 As shown, in some embodiments, a transmission shaft 11 that can rotate automatically is provided on the top of the telescopic bottom block 10, a transmission sleeve 1910 that can be sleeved on the transmission shaft 11 is rotatably installed on the top of the transmission bottom plate 191, a keyway is provided on the inner wall of the transmission sleeve 1910, and a shaft key that can be inserted into the keyway is provided on the outer side of the transmission shaft 11, a worm 1911 is fixedly connected to the top of the transmission sleeve 1910, and a worm wheel 1913 meshing with the worm 1911 is provided on the outer side of the rotating shaft 1912.

[0047] When the hoisting mechanism 19 needs to be installed, the transmission sleeve 1910 is sleeved on the transmission shaft 11. While ensuring that the telescopic bottom block 10 can drive the hoisting mechanism 19 to move, the transmission shaft 11 can drive the transmission sleeve 1910 to rotate. The rotation of the transmission sleeve 1910 drives the worm 1911 to rotate, the worm 1911 drives the worm wheel 1913 to rotate, and the worm wheel 1913 drives the rotating shaft 1912 to rotate, so as to drive the hoisting mechanism 19 to clamp. There is no need to set a driving device on the hoisting mechanism 19, the hoisting assembly weight is small, and the structure is more compact.

[0048] As Figure 4 shown, in some embodiments, a nut wheel 14 meshing with the telescopic screw 8 is rotatably installed inside the telescopic bottom block 10. A buffer card slot 15 is formed on the outer side of the nut wheel 14, and a buffer sliding slot is formed on the inner wall of the telescopic bottom block 10. A buffer block 16 that can be inserted into the buffer card slot 15 is slidably connected inside the buffer sliding slot. A buffer spring 17 is arranged between the buffer block 16 and the inner wall of the buffer sliding slot. A bevel gear is arranged on the outer side of the nut wheel 14, and a transmission wheel 18 meshing with the bevel gear is arranged at the bottom of the transmission shaft 11.

[0049] When the hoisting position needs to be adjusted, the telescopic screw 8 is controlled to rotate. At this time, the nut wheel 14 will not rotate under the action of the buffer card slot 15 and the buffer block 16, and since the hoisting mechanism 19 has not been clamped outside the steel structure, no moving restriction force will be applied to the telescopic bottom block 10. At this time, the telescopic screw 8 rotates through the nut wheel 14, and the nut wheel 14 drives the telescopic bottom block 10 to move. The telescopic bottom block 10 can drive the hoisting mechanism 19 to move. When the hoisting mechanism 19 moves to the position of the steel structure, the movement of the telescopic bottom block 10 is restricted. At this time, the driving force of the telescopic screw 8 is greater than the elastic force of the buffer spring 17. The telescopic screw 8 drives the nut wheel 14 to rotate, and the nut wheel 14 moves the buffer block 16 away from the buffer card slot 15 and compresses the buffer spring 17. Due to the inclined design on both sides of the buffer block 16, the buffer block 16 can stably move away from the buffer card slot 15. At this time, the nut wheel 14 drives the transmission wheel 18 to rotate through the bevel gear, the transmission wheel 18 drives the transmission shaft 11 to rotate, and the transmission shaft 11 drives the hoisting mechanism 19 to automatically clamp. Only one set of driving mechanism of the telescopic screw 8 can control the automatic clamping of the hoisting mechanism 19, and the structure is more compact.

[0050] As Figures 2-6 shown, in some embodiments, a guiding bottom hole 199 is formed at the bottom of the lower clamping plate 198. A clamping sliding slot is formed on the outer side of the adjusting support plate 2. A guiding bottom block 12 is slidably connected inside the clamping sliding slot. The guiding bottom block 12 is slidably connected to the outer side of the supporting guide post 9, and a bottom rod 13 that can be inserted into the guiding bottom hole 199 is fixedly connected to the top of the guiding bottom block 12.

[0051] When the transmission bottom plate 191 is installed on the telescopic bottom block 10, the lower clamping plate 198 and the bottom rod 13 are installed on the guiding bottom block 12 through the guiding bottom hole 199 to support both ends of the bottom of the hoisting mechanism 19, ensuring the stable installation of the hoisting mechanism 19. When the lower clamping plate 198 clamps, the lower clamping plate 198 drives the guiding bottom block 12 to move through the guiding bottom hole 199 and the bottom rod 13, and the guiding bottom block 12 drives the supporting guide post 9 to approach the telescopic screw rod 8 along the clamping chute, ensuring support while not affecting the clamping of the hoisting mechanism 19 and achieving stable clamping.

[0052] As Figure 5 shown, in some embodiments, the transmission bottom plate 191, the two groups of upper clamping plates 194 and the lower clamping plate 198 are all designed in an L shape, and can respectively wrap the four corners of the steel structure, enabling the hoisting mechanism 19 to completely clamp on the outside of the steel structure, achieving stable clamping and preventing the steel wire rope from scratching the four corners of the steel structure during hoisting.

[0053] As Figure 1 shown, in some embodiments, when the transmission bottom plate 191 is installed on the telescopic bottom block 10, the upper plane of the transmission bottom plate 191 is lower than the upper surface of the adjusting wheel 3.

[0054] When the hoisting mechanism 19 is installed on the telescopic bottom block 10, the transmission bottom plate 191 does not contact the steel structure, does not affect the adjustment of the center of gravity of the steel structure, and at the same time, when adjusting the hoisting position, the transmission bottom plate 191 will not exert a limiting force on the telescopic bottom block 10, ensuring the stable movement and adjustment of the telescopic bottom block 10.

[0055] During clamping, under the action of the upper screw rod 192 and the upper clamping plate 194, the transmission bottom plate 191 is relative to the telescopic bottom block 10. The transmission bottom plate 191 drives the transmission sleeve 1910 to rise relative to the transmission shaft 11, and with the setting of the shaft key and the key groove, the transmission shaft 11 can still drive the transmission sleeve 1910 to rotate, achieving stable transmission. During hoisting, the steel structure rises vertically, enabling the hoisting mechanism 19 to stably move away from the telescopic bottom block 10, getting out of the stable state without affecting the hoisting connection of the steel structure.

[0056] At the same time, since when the transmission bottom plate 191 is installed on the telescopic bottom block 10, the upper plane of the transmission bottom plate 191 is lower than the upper surface of the adjusting wheel 3. When installing the transmission bottom plate 191, push the transmission bottom plate 191 against the steel structure. There is a certain distance between the transmission bottom plate 191 and the telescopic bottom block 10, enabling the transmission sleeve 1910 to be stably sleeved on the transmission shaft 11, facilitating the installation of the hoisting mechanism.

[0057] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present 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 present invention. Thus, the present invention is not intended 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. A hoisting device for steel structure construction, comprising a base (1) and a hoisting mechanism (19). It is characterized in that a regulating support plate (2) is hinged to the top of the base (1), a regulating wheel (3) driven by a motor is arranged in a row on the top of the regulating support plate (2), a weighing mechanism is arranged on the top of the base (1), the weighing mechanism can detect the weight difference between the two ends of the regulating support plate (2), and can control the operation of the regulating wheel (3); it further comprises telescopic screw rods (8) rotatably installed on both sides of the regulating support plate (2), both groups of telescopic screw rods (8) are driven by motors, telescopic bottom blocks (10) are threadedly connected to the outer sides of both groups of telescopic screw rods (8), the hoisting mechanism (19) is divided into two groups, and the two groups of hoisting mechanisms can be respectively installed on the two telescopic bottom blocks (10), and the hoisting mechanism (19) can automatically clamp on the outer side of the steel structure; the hoisting mechanism comprises a transmission bottom plate (191) on the telescopic bottom block (10), an upper screw rod (192) capable of automatically rotating is arranged on the top of the transmission bottom plate (191), an upper nut sleeve (193) is threadedly connected to the top of the upper screw rod (192), an upper clamping plate (194) is fixedly connected to the top of the upper nut sleeve (193), the upper clamping plate (194) is divided into two groups, and the two groups of upper clamping plates (194) are connected by a telescopic rod. A lower screw rod (196) capable of automatically rotating is arranged on the left side of the transmission bottom plate (191), a lower nut sleeve (197) is threadedly connected to the outer side of the lower screw rod (196), a lower clamping plate (198) is fixedly connected to the outer side of the lower nut sleeve (197), and the lower clamping plate (198) and the left upper clamping plate (194) are connected by a telescopic rod; a rotating shaft (1912) capable of automatically rotating is rotatably installed inside the transmission bottom plate (191), a driving wheel (1914) is arranged on the outer side of the rotating shaft (1912), and bevel gears meshing with the driving wheel (1914) are arranged on the outer sides of the upper screw rod (192) and the lower screw rod (196); a transmission shaft (11) capable of automatically rotating is arranged on the top of the telescopic bottom block (10), a transmission sleeve (1910) capable of sleeving on the transmission shaft (11) is rotatably installed on the top of the transmission bottom plate (191), key grooves are formed in the inner wall of the transmission sleeve (1910), shaft keys capable of being inserted into the key grooves are arranged on the outer side of the transmission shaft (11), a worm (1911) is fixedly connected to the top of the transmission sleeve (1910), and a worm gear (1913) meshing with the worm (1911) is arranged on the outer side of the rotating shaft (1912).

2. The hoisting device for steel structure construction according to claim 1, It is characterized in that the weighing mechanism comprises a sliding groove opened on the top of the base (1), a weight sensor (4) is installed inside the sliding groove, a top block (7) in sliding connection with the weight sensor (4) is arranged inside the sliding groove, a support rod (6) is hinged to the top of the top block (7), and the support rod (6) is hinged to the outer side of the regulating support plate (2). It further includes a controller (5) installed on the top of the base (1). The controller (5) can receive the electrical signal from the weight sensor (4) and control the rotation direction and rotation time of the adjusting wheel (3) according to the electrical signal.

3. The hoisting device for steel structure construction according to claim 1, characterized in that, Lifting rings (195) are arranged on the outer sides of the two groups of upper clamping plates (194).

4. The hoisting device for steel structure construction according to claim 1, characterized in that, A nut wheel (14) meshing with the telescopic screw rod (8) is rotatably installed inside the telescopic bottom block (10). A buffer card slot (15) is formed on the outer side of the nut wheel (14). A buffer sliding groove is formed on the inner wall of the telescopic bottom block (10). A buffer card block (16) that can be inserted into the buffer card slot (15) is slidably connected inside the buffer sliding groove. A buffer spring (17) is arranged between the buffer card block (16) and the inner wall of the buffer sliding groove. A bevel gear is arranged on the outer side of the nut wheel (14). A transmission wheel (18) meshing with the bevel gear is arranged at the bottom of the transmission shaft (11).

5. The hoisting device for steel structure construction according to any one of claims 1-4, characterized in that, A guiding bottom hole (199) is formed at the bottom of the lower clamping plate (198). A clamping sliding groove is formed on the outer side of the adjusting support plate (2). A guiding bottom block (12) is slidably connected inside the clamping sliding groove. A bottom rod (13) that can be inserted into the guiding bottom hole (199) is fixedly connected to the top of the guiding bottom block (12).

6. The hoisting device for steel structure construction according to claim 5, characterized in that, The transmission bottom plate (191), the two groups of upper clamping plates (194) and the lower clamping plate (198) are all designed in an L shape and can respectively wrap around the four corners of the steel structure.

7. The hoisting device for steel structure construction according to claim 6, characterized in that, When the transmission bottom plate (191) is installed on the telescopic bottom block (10), the upper plane of the transmission bottom plate (191) is lower than the upper surface of the adjusting wheel (3).

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