A multi-point hoisting device for steel members

Abstract

This application provides a multi-point hoisting device for steel components, relating to the technical field of steel component hoisting equipment. The multi-point hoisting device includes a hoisting support mechanism, an end suspension mechanism, and a middle suspension mechanism. The hoisting support mechanism includes a crossbeam, a first hoisting rope, a second hoisting rope, and a main hoisting rope. The top ends of the first and second hoisting ropes are connected to the bottom end of the main hoisting rope. Two sets of end suspension mechanisms are respectively disposed at both ends of the crossbeam. Each end suspension mechanism includes a bracket, end cap, first lifting ring, rope, connecting seat, threaded rod, handwheel, and first suspension component that cooperate with the I-beam. By moving the first and second claws, the first and second claws engage the bottom sides of the I-beam, supporting the middle area of ​​the I-beam during hoisting, thus bearing the weight of the hoisted I-beam and reducing the load on the end brackets. This prevents deformation of the brackets during hoisting and provides some protection to the end brackets.

Description

Technical Field

[0001] This application relates to the technical field of steel component hoisting equipment, and more specifically, to a multi-point hoisting device for steel components. Background Technology

[0002] Steel component systems have comprehensive advantages such as light weight, factory manufacturing, quick installation, short construction period, good seismic performance, fast investment recovery, and less environmental pollution. Compared with reinforced concrete structures, they have unique advantages in terms of "high, large, and light".

[0003] There are two main methods for hoisting steel components: one is to fix the hook assembly to both ends of the I-beam and then lift the I-beam. In this method, the center of gravity of the I-beam is in the middle of the steel component, which generates a large torque on the hook assembly at both ends, and the hook assembly is prone to deformation; the other is to fix the hook assembly to the middle of the I-beam. In this method, the center of gravity of the I-beam is unstable, and the lifted steel component may slip. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a multi-point lifting device for steel components, which has the following problems: the hook assembly is fixed at both ends of the I-shaped steel to lift the I-shaped steel, and the hook assembly is prone to deformation; the hook assembly is fixed in the middle of the I-shaped steel, and the lifting method of the I-shaped steel is unstable, and the lifted steel component may slip and be in danger.

[0005] A multi-point hoisting device for steel components according to an embodiment of this application includes: a hoisting support mechanism, an end suspension mechanism, and a middle suspension mechanism.

[0006] The hoisting support mechanism includes a crossbeam, a first hoisting rope, a second hoisting rope, and a main hoisting rope, with the top ends of the first and second hoisting ropes connected to the bottom end of the main hoisting rope;

[0007] Two sets of end suspension mechanisms are respectively disposed at both ends of the crossbeam. The end suspension mechanism includes a bracket, end cap, first lifting ring, rope, connecting seat, threaded rod, handwheel, and first suspension member that cooperate with the I-beam. The first suspension member is slidably disposed on the crossbeam. The connecting seat is located on one side of the first suspension member. One end of the threaded rod is rotatably connected to the connecting seat, and the other end of the threaded rod is screwed through the first suspension member. The handwheel is installed at the other end of the threaded rod. The end cap is fixed to one side of the bracket. The first lifting ring is installed on the top of the bracket. The bottom end of the rope is connected to the first lifting ring. The top end of the rope movably passes through the bottom and one side of the first suspension member and is connected to the connecting seat. The bottom end of the first suspension rope is connected to the top of the first suspension member.

[0008] Before hoisting the I-beam, the hangers in the two sets of end suspension mechanisms are respectively secured to both ends of the I-beam. The end caps on one side of the hangers act as limiters to prevent the hangers from sliding on the I-beam. Turning the handwheel drives the threaded rod to rotate, and the rotating threaded rod moves axially, pushing the connecting seat to move. As the connecting seat moves away from the first suspension component, the position of the end hanger hooking onto the I-beam can be adjusted to move upward; as the connecting seat moves closer to the first suspension component, the position of the end hanger hooking onto the I-beam can be adjusted to move downward, thus adjusting the two ends of the hoisted I-beam to a horizontal position, making the hoisting and transfer of the I-beam more stable.

[0009] The first suspension component can slide and adjust above the crossbeam, which in turn adjusts the mounting bracket at the bottom of the first suspension component to a horizontal position below the crossbeam. In other words, both sets of mounting brackets can be adjusted horizontally below the crossbeam as needed to hoist I-beams of different lengths.

[0010] Two sets of central suspension mechanisms are respectively mounted on the crossbeam. Each central suspension mechanism includes a second suspension member, a first connecting rod, a second connecting rod, a first pawl, and a second pawl. The bottom end of the second suspension rope is connected to the top of the second suspension member. The top ends of the first connecting rod and the second connecting rod are rotatably connected to the bottom of the second suspension member. The first pawl and the second pawl are rotatably mounted, and the top ends of the first pawl and the second pawl are rotatably connected to the second connecting rod and the bottom end of the first connecting rod, respectively.

[0011] Before the two sets of hangers are installed at both ends of the I-beam, the two sets of central suspension mechanisms are pre-moved and adjusted on the crossbeam to be symmetrically distributed near the central area of ​​the I-beam. The first and second jaws are moved so that they engage the bottom sides of the I-beam, supporting the central area of ​​the I-beam during hoisting, thus bearing the weight of the I-beam and reducing the load on the end hangers. This prevents deformation of the hangers during hoisting and provides some protection to the end hangers. The first and second jaws, respectively engaged on both sides of the I-beam, work in conjunction with the end hangers to ensure greater stability during hoisting.

[0012] In some embodiments of this application, the crossbeam includes a first beam plate, a second beam plate, and an end plate. The two end plates are respectively fixedly disposed at both ends of the first beam plate and the second beam plate, and a limiting groove is formed between the first beam plate, the second beam plate, and the end plate.

[0013] In some embodiments of this application, the first suspension member includes a lower seat plate, an upper seat plate, and a second lifting ring. The lower seat plate and the second lifting ring are respectively disposed at the bottom and top of the upper seat plate. The bottom end of the first suspension rope is connected to the second lifting ring. The upper seat plate is slidably disposed inside the limiting groove.

[0014] In some embodiments of this application, the bottom and side of the lower seat plate are provided with interconnected guide holes, through which the rope moves.

[0015] In some embodiments of this application, the side of the lower seat plate is provided with a threaded hole that mates with the threaded rod.

[0016] In some embodiments of this application, a guide rod is provided on one side of the connecting seat, and the guide rod movably passes through the lower seat plate.

[0017] In some embodiments of this application, a small hole is provided on the lower base plate, and the guide rod moves through the small hole.

[0018] In some embodiments of this application, a limit block is provided at the end of the guide rod away from the connecting seat.

[0019] In some embodiments of this application, positioning blocks are fixedly provided on both sides of the bottom of the upper seat plate.

[0020] In some embodiments of this application, the second suspension member includes a vertical rod, a lower support block, an upper support block, and a third lifting ring. The lower support block and the upper support block are respectively fixedly disposed at the bottom and top of the vertical rod. The top ends of the first connecting rod and the second connecting rod are rotatably connected to the bottom of the lower support block. The vertical rod is slidably disposed inside the limiting groove. The bottom end of the second suspension rope is connected to the third lifting ring, and the third lifting ring is installed on the top of the upper support block.

[0021] The end suspension mechanism and the middle suspension mechanism in the above-mentioned multi-point hoisting device for steel components cannot further clamp and adjust the hoisted I-beams, and the I-beams hoisted during the transfer are not stable enough.

[0022] The multi-point hoisting device for steel components also includes a connecting and driving mechanism, which includes a guide seat, a support rod, and limiting rings. The guide seat is provided with a guide groove, and the first connecting rod slides through the guide groove. The two limiting rings are respectively vertically slidably disposed on both sides of the connecting seat away from the first suspension member. The end of the support rod near the connecting seat is rotatably connected to the guide seat, and the other end of the support rod rotatably passes through the two limiting rings.

[0023] By turning the handwheel, the threaded rod rotates, causing the connecting seat at the end to move axially along the threaded rod. This adjusts the height of the rope and the hanger, ensuring that the hangers at both ends are suspended at the same horizontal level, thus making the hoisted I-beam more stable during lifting. After the first and second jaws in the middle suspension mechanism stabilize the middle area of ​​the I-beam, the I-beam is then hoisted by adjusting the height of the hangers in the end suspension mechanisms at both ends to the same horizontal level.

[0024] After the above operations are completed, two people can simultaneously rotate the handwheels in the end suspension mechanisms at both ends of the I-beam. The rotating handwheels drive the threaded rods to rotate simultaneously, causing the connecting seats at the ends to gradually move axially away from the first suspension component. The moving connecting seats pull the rope upwards, causing the hangers at both ends of the I-beam to pull upwards and make slight adjustments to the I-beam's ends. As the connecting seats move towards the first suspension component, they drive the support rod to move away from the first suspension component. The moving first support rod drives the guide seat at the end to move along the first connecting rod away from the second connecting rod, and simultaneously, the support rod rotates slightly, and the limiting ring at the other end of the support rod moves slightly downwards on the side of the connecting seat. The moving guide seat drives the first connecting rod to make the angle change smaller; that is, with the cooperation of the second connecting rod, the relative angle between the first and second pawls is made smaller, allowing the first and second pawls to clamp more tightly on both sides of the I-beam. This, combined with the hangers at both ends, makes the I-beam more stable during hoisting and transfer.

[0025] The support rod in the above-mentioned multi-point hoisting device for steel components is not stable enough when it moves vertically along the connecting seat.

[0026] In some embodiments of this application, the connecting seat has a groove on the side away from the first suspension member, and a slider is slidably disposed inside the groove. Both the slider and the groove are T-shaped structures that cooperate with each other. The T-shaped groove and the slider cooperate to make the movement of the limiting ring at the end of the support rod more stable on one side of the connecting seat, thereby improving the stability of the component during movement.

[0027] The beneficial effects of this application are as follows: The multi-point hoisting device for steel components obtained through the above design, in use, before the two sets of hangers are engaged at both ends of the I-beam, pre-moves and adjusts the two sets of central suspension mechanisms on the crossbeam to symmetrically distribute them near the central area of ​​the I-beam. Moving the first and second claws causes them to engage the bottom sides of the I-beam, supporting the central area of ​​the I-beam during hoisting, thus bearing the weight of the hoisted I-beam and reducing the load on the hangers at both ends. This prevents deformation of the hangers during hoisting and provides some protection to the hangers at both ends. The first and second claws, respectively engaged on both sides of the I-beam, work in conjunction with the hangers at both ends to hoist the I-beam, making the I-beam more stable during hoisting.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a multi-point hoisting device for steel components according to an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the hoisting support mechanism according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the end suspension mechanism, the middle suspension mechanism, and the connecting drive mechanism according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the end suspension mechanism structure according to an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the first suspension component structure according to an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the central suspension mechanism structure according to an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the connection and drive mechanism structure according to an embodiment of this application;

[0037] Figure 8This is a schematic diagram of the connecting seat, limiting ring, and slider structure according to an embodiment of this application.

[0038] icon:

[0039] 10-Lifting support mechanism; 110-Crossbeam; 111-First beam plate; 112-Second beam plate; 113-End plate; 114-Limiting groove; 120-First lifting rope; 130-Second lifting rope; 140-Main lifting rope; 20-End suspension mechanism; 210-Hanging seat; 220-End cap; 230-First lifting ring; 240-Rope; 250-Connecting seat; 251-Slide groove; 260-Threaded rod; 261-Guide rod; 262-Limiting block; 270-Handwheel; 280-First suspension component; 281-Lower seat plate; 282 - Upper seat plate; 283 - Second lifting ring; 284 - Guide hole; 285 - Threaded hole; 286 - Small hole; 287 - Positioning block; 30 - Middle suspension mechanism; 310 - Second suspension component; 311 - Vertical rod; 312 - Lower support block; 313 - Upper support block; 314 - Third lifting ring; 320 - First connecting rod; 330 - Second connecting rod; 340 - First pawl; 350 - Second pawl; 40 - Connecting drive mechanism; 410 - Guide seat; 411 - Guide groove; 420 - Support rod; 430 - Limiting ring; 440 - Slider. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0043] A multi-point hoisting device for steel components according to an embodiment of this application is described below with reference to the accompanying drawings.

[0044] Please see Figures 1-8According to an embodiment of this application, a multi-point hoisting device for steel components includes: a hoisting support mechanism 10, an end suspension mechanism 20, and a middle suspension mechanism 30.

[0045] The hoisting support mechanism 10 supports the end suspension mechanism 20 and the middle suspension mechanism 30. The end suspension mechanism 20 limits the two ends of the I-beam when hoisting it, while the middle suspension mechanism 30 limits the middle area of ​​the I-beam, making the I-beam more stable during transfer and reducing the stress on the end suspension mechanisms 20 at both ends, thus providing a certain degree of protection for the end suspension mechanisms 20.

[0046] Please see Figure 2 and Figure 4 The hoisting support mechanism 10 includes a crossbeam 110, a first hoisting rope 120, a second hoisting rope 130, and a main hoisting rope 140. The top ends of the first hoisting rope 120 and the second hoisting rope 130 are connected to the bottom end of the main hoisting rope 140. Two sets of end suspension mechanisms 20 are respectively disposed at both ends of the crossbeam 110. The end suspension mechanism 20 includes a bracket 210 that cooperates with the I-beam, an end cap 220, a first lifting ring 230, a rope 240, a connecting seat 250, a threaded rod 260, a handwheel 270, and a first suspension member 280. The first suspension member 280 is slidably disposed on the crossbeam 110. The connecting seat 250 is located on one side of the first suspension member 280. One end of the threaded rod 260 is rotatably connected to the connecting seat 250, and the other end of the threaded rod 260 is screwed through the first suspension member 280. The handwheel 270 is installed at the other end of the threaded rod 260, and the handwheel 270 and the threaded rod 260 are fixed together by welding. The end cap 220 is fixed to one side of the hanger 210, and the end cap 220 and the hanger 210 are fixed together by bolts; the first lifting ring 230 is installed on the top of the hanger 210, the bottom end of the rope 240 is connected to the first lifting ring 230, the top end of the rope 240 moves through the bottom and one side of the first suspension member 280 and is connected to the connecting seat 250, and the bottom end of the first suspension rope 120 is connected to the top of the first suspension member 280.

[0047] Before hoisting the I-beam, the hangers 210 in the two sets of end suspension mechanisms 20 are respectively secured to both ends of the I-beam. The end caps 220 on one side of the hangers 210 act as limiters to prevent the hangers 210 from sliding on the I-beam. Turning the handwheel 270 drives the threaded rod 260 to rotate, and the rotating threaded rod 260 moves axially, pushing the connecting seat 250 to move. When the connecting seat 250 moves away from the first suspension member 280, the position of the end hangers 210 hooking onto the I-beam can be adjusted to move upward; when the connecting seat 250 moves closer to the first suspension member 280, the position of the end hangers 210 hooking onto the I-beam can be adjusted to move downward, so that both ends of the hoisted I-beam are in a horizontal position, making the hoisting and transfer of the I-beam more stable.

[0048] The first suspension component 280 can slide and adjust above the crossbeam component 110, thereby adjusting the hanger 210 at the bottom of the first suspension component 280 to a horizontal position below the crossbeam component 110. In other words, the two sets of hangers 210 can be adjusted horizontally below the crossbeam component 110 according to actual needs to hoist I-beams of different lengths.

[0049] Please see Figure 6 Two sets of central suspension mechanisms 30 are respectively mounted on the crossbeam 110. Each central suspension mechanism 30 includes a second suspension member 310, a first connecting rod 320, a second connecting rod 330, a first pawl 340, and a second pawl 350. The bottom end of the second suspension rope 130 is connected to the top of the second suspension member 310. The top ends of the first connecting rod 320 and the second connecting rod 330 are rotatably connected to the bottom of the second suspension member 310, i.e., the first connecting rod 320 and the second connecting rod 330 are rotatably connected to the second suspension member 310 via pins. The first pawl 340 and the second pawl 350 are rotatably mounted, and the top ends of the first pawl 340 and the second pawl 350 are rotatably connected to the bottom ends of the second connecting rod 330 and the first connecting rod 320, respectively; i.e., the first pawl 340 and the second pawl 350 are rotatably connected to the second connecting rod 330 and the first connecting rod 320 via pins.

[0050] Before the two sets of hangers 210 are engaged at both ends of the I-beam, the two sets of central suspension mechanisms 30 are pre-moved and adjusted on the crossbeam 110 to be symmetrically distributed near the central area of ​​the I-beam. The first and second jaws 340 are moved so that they engage the bottom sides of the I-beam, supporting the central area of ​​the I-beam during hoisting, thus bearing the weight of the I-beam and reducing the load on the hangers 210 at both ends. This prevents the hangers 210 from deforming during hoisting and provides some protection for them. The first and second jaws 340, engaged on both sides of the I-beam, work in conjunction with the hangers 210 at both ends to ensure greater stability during hoisting.

[0051] In the specific implementation described above, please refer to Figure 2 The crossbeam component 110 includes a first beam plate 111, a second beam plate 112, and end plates 113. Two end plates 113 are respectively fixedly disposed at both ends of the first beam plate 111 and the second beam plate 112, and are welded to each other. A limiting groove 114 is formed between the first beam plate 111, the second beam plate 112, and the end plates 113. The end plates 113 at both ends of the first beam plate 111 and the second beam plate 112 are used to fix the first beam plate 111 and the second beam plate 112, respectively. The limiting groove 114 formed between the first beam plate 111 and the second beam plate 112 can be used by the end suspension mechanism 20 and the middle suspension mechanism 30 for sliding adjustment.

[0052] For specific settings, please refer to Figure 4 and Figure 5 The first suspension component 280 includes a lower seat plate 281, an upper seat plate 282, and a second lifting ring 283. The lower seat plate 281 and the second lifting ring 283 are respectively disposed at the bottom and top of the upper seat plate 282, and the lower seat plate 281 and the upper seat plate 282 are fixed together by welding. The bottom end of the first suspension rope 120 is connected to the second lifting ring 283, and the upper seat plate 282 is slidably disposed inside the limiting groove 114. When the first suspension rope 120 pulls the second lifting ring 283 above the upper seat plate 282, it can drive the upper seat plate 282 to slide inside the limiting groove 114, that is, adjust the lateral position of the hanging seat 210 below the lower seat plate 281 below the crossbeam component 110.

[0053] Further, please refer to Figure 4 and Figure 5 The lower base plate 281 has connecting guide holes 284 on its bottom and sides, through which the rope 240 moves. The guide holes 284 guide the rope 240, but are not rounded or chamfered. The lower base plate 281 has threaded holes 285 on its sides that mate with the threaded rod 260. A guide rod 261 is provided on one side of the connecting seat 250, and the connecting seat 250 and the guide rod 261 are fixed together by bolts. The guide rod 261 moves through the lower base plate 281. The guide rod 261 is used to limit the stability of the connecting seat 250 during movement. The lower base plate 281 has a small hole 286, through which the guide rod 261 moves. A limit block 262 is provided at the end of the guide rod 261 away from the connecting seat 250; the guide rod 261 and the limit block 262 are fixed together by welding, and the limit block 262 is used to limit the movement of the connecting seat 250 on the guide rod 261. Positioning blocks 287 are fixedly installed on both sides of the bottom of the upper seat plate 282. The upper seat plate 282 and the positioning blocks 287 are fixed together by welding. The positioning blocks 287 are used to position the upper seat plate 282 to be stable inside the limiting groove 114 during hoisting.

[0054] In some embodiments of this application, please refer to Figure 6The second suspension component 310 includes a vertical rod 311, a lower support block 312, an upper support block 313, and a third lifting ring 314. The lower support block 312 and the upper support block 313 are fixedly installed at the bottom and top of the vertical rod 311, respectively, and are integrally formed with the vertical rod 311. The top ends of the first connecting rod 320 and the second connecting rod 330 are rotatably connected to the bottom of the lower support block 312, and the first connecting rod 320 and the second connecting rod 330 are rotatably connected to the lower support block 312 via pins. The vertical rod 311 is slidably installed inside the limiting groove 114, and the bottom end of the second suspension rope 130 is connected to the third lifting ring 314, which is installed on the top of the upper support block 313. The second suspension rope 130 pulls the third suspension ring 314, which causes the vertical rod 311 in the second suspension component 310 to slide inside the limiting groove 114, thereby adjusting the bottom first claw 340 and the second claw 350 to hold the middle area of ​​the I-beam.

[0055] The end suspension mechanism 20 and the middle suspension mechanism 30 in the above-mentioned multi-point hoisting device for steel components cannot further clamp and adjust the hoisted I-beams, and the I-beams hoisted during the transfer are not stable enough.

[0056] Please see Figure 7 The multi-point hoisting device for steel components also includes a connecting and driving mechanism 40, which includes a guide seat 410, a support rod 420, and a limiting ring 430. The guide seat 410 has a guide groove 411, through which the first connecting rod 320 slides. Two limiting rings 430 are vertically slidably disposed on both sides of the connecting seat 250 away from the first suspension member 280. One end of the support rod 420 near the connecting seat 250 is rotatably connected to the guide seat 410, and the other end of the support rod 420 rotatably passes through both limiting rings 430.

[0057] By rotating the handwheel 270, the threaded rod 260 is driven to rotate. The rotating threaded rod 260 causes the connecting seat 250 at the end to move axially along the threaded rod 260, adjusting the height of the rope 240 and the hanging seat 210 so that the hanging seats 210 at both ends are suspended at the same horizontal position, thus making the suspended I-beam more stable during lifting. After the first jaw 340 and the second jaw 350 in the middle suspension mechanism 30 stabilize the middle area of ​​the I-beam, the I-beam is then lifted by adjusting the height of the hanging seats 210 in the end suspension mechanisms 20 at both ends of the I-beam to the same horizontal position.

[0058] After the above operations are completed, two people can simultaneously rotate the handwheels 270 in the end suspension mechanisms 20 at both ends of the I-beam. The rotating handwheels 270 drive the threaded rods 260 to rotate simultaneously. The rotating threaded rods 260 drive the end connecting seats 250 to gradually move away from the first suspension member 280 along the axial direction. The moving connecting seats 250 pull the rope 240 upward, causing the hangers 210 at both ends of the I-beam to pull the ends of the I-beam upward for slight upward adjustment. When the connecting seats 250 move towards the first suspension member 280, the connecting seats 250 drive the support rod 420 to move away from the first suspension member 280. The moving first support rod 420 drives the end guide seat 410 to move away from the second connecting rod 330 along the first connecting rod 320. At the same time, the support rod 420 rotates slightly, and the limiting ring 430 at the other end of the support rod 420 moves slightly downward on the side of the connecting seat 250. The moving guide seat 410 drives the first link 320 to detect the angle change and make it smaller. That is, the rotating first link 320, in cooperation with the second link 330, makes the relative angle between the first jaw 340 and the second jaw 350 smaller. The first jaw 340 and the second jaw 350 clamp the I-shaped steel more tightly on both sides. At the same time, in cooperation with the hangers 210 at both ends, the I-shaped steel will be more stable during hoisting and transfer.

[0059] The support rod 420 in the above-mentioned multi-point hoisting device for steel components is not stable enough when it moves vertically along the connecting seat 250.

[0060] In some embodiments of this application, please refer to Figure 8 The connecting seat 250 has a groove 251 on the side away from the first suspension member 280. A slider 440 is slidably disposed inside the groove 251. Both the slider 440 and the groove 251 are T-shaped structures that cooperate with each other. The T-shaped groove 251 and the slider 440 cooperate to make the movement of the limiting ring 430 at the end of the support rod 420 more stable on one side of the connecting seat 250, thereby improving the stability of the component during movement.

[0061] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-point lifting device for a steel member, characterized by comprising: include: The hoisting support mechanism (10) includes a crossbeam (110), a first hoisting rope (120), a second hoisting rope (130) and a main hoisting rope (140), the top ends of the first hoisting rope (120) and the second hoisting rope (130) are connected to the bottom end of the main hoisting rope (140); The end suspension mechanism (20) consists of two sets of end suspension mechanisms (20) respectively disposed at both ends of the crossbeam (110). Each end suspension mechanism (20) includes a bracket (210) that cooperates with the I-beam, an end cap (220), a first lifting ring (230), a rope (240), a connecting seat (250), a threaded rod (260), a handwheel (270), and a first suspension member (280). The first suspension member (280) is slidably disposed on the crossbeam (110). The connecting seat (250) is located on one side of the first suspension member (280). One end of the threaded rod (260) is rotatably connected to the connecting seat (240). 50), and one end of the threaded rod (260) is threaded through the first suspension member (280), and the handwheel (270) is installed on the other end of the threaded rod (260), the end cap (220) is fixed to one side of the bracket (210), the first lifting ring (230) is installed on the top of the bracket (210), the bottom end of the rope (240) is connected to the first lifting ring (230), the top end of the rope (240) is movably passed through the bottom and one side of the first suspension member (280) and connected to the connecting seat (250), and the bottom end of the first suspension rope (120) is connected to the top of the first suspension member (280); A central suspension mechanism (30) is provided. Two central suspension mechanisms (30) are respectively disposed on the crossbeam (110). The central suspension mechanism (30) includes a second suspension member (310), a first connecting rod (320), a second connecting rod (330), a first pawl (340), and a second pawl (350). The bottom end of the second suspension rope (130) is connected to the top of the second suspension member (310). The top ends of the first connecting rod (320) and the second connecting rod (330) are respectively rotatably connected to the bottom of the second suspension member (310). The first pawl (340) and the second pawl (350) are rotatably disposed, and the top ends of the first pawl (340) and the second pawl (350) are respectively rotatably connected to the bottom end of the second connecting rod (330) and the first connecting rod (320). The connecting drive mechanism (40) includes a guide seat (410), a support rod (420), and a limiting ring (430). The guide seat (410) is provided with a guide groove (411). The first connecting rod (320) slides through the guide groove (411). The two limiting rings (430) are respectively vertically slidably disposed on both sides of the connecting seat (250) away from the first suspension member (280). The end of the support rod (420) close to the connecting seat (250) is rotatably connected to the guide seat (410), and the other end of the support rod (420) rotatably passes through the two limiting rings (430).

2. A multi-point lifting device for a steel member according to claim 1, wherein The crossbeam (110) includes a first beam plate (111), a second beam plate (112), and an end plate (113). The two end plates (113) are respectively fixedly disposed at both ends of the first beam plate (111) and the second beam plate (112), and a limiting groove (114) is formed between the first beam plate (111), the second beam plate (112), and the end plate (113).

3. A multi-point lifting device for a steel member according to claim 2, wherein The first suspension member (280) includes a lower seat plate (281), an upper seat plate (282), and a second lifting ring (283). The lower seat plate (281) and the second lifting ring (283) are respectively disposed at the bottom and top of the upper seat plate (282). The bottom end of the first suspension rope (120) is connected to the second lifting ring (283). The upper seat plate (282) is slidably disposed inside the limiting groove (114).

4. A multi-point lifting device for a steel member according to claim 3, wherein The bottom and side of the lower seat plate (281) are provided with connecting guide holes (284), and the rope (240) passes through the guide holes (284).

5. A multi-point lifting device for a steel member according to claim 3, wherein The lower seat plate (281) has a threaded hole (285) on its side that mates with the threaded rod (260).

6. A multi-point lifting device for a steel member according to claim 3, wherein A guide rod (261) is provided on one side of the connecting seat (250), and the guide rod (261) is movably inserted through the lower seat plate (281).

7. A multi-point lifting device for a steel member according to claim 6, wherein The lower seat plate (281) is provided with a small hole (286), and the guide rod (261) moves through the small hole (286).

8. A multi-point hoisting device for steel components according to claim 6, characterized in that, A limit block (262) is provided at the end of the guide rod (261) away from the connecting seat (250).

9. A multi-point lifting device for a steel member according to claim 3, wherein Positioning blocks (287) are fixedly installed on both sides of the bottom of the upper seat plate (282).

10. A multi-point lifting device for a steel member according to claim 2, wherein The second suspension component (310) includes a vertical rod (311), a lower support block (312), an upper support block (313), and a third hanging ring (314). The lower support block (312) and the upper support block (313) are respectively fixedly disposed at the bottom and top of the vertical rod (311). The top ends of the first connecting rod (320) and the second connecting rod (330) are respectively rotatably connected to the bottom of the lower support block (312). The vertical rod (311) is slidably disposed inside the limiting groove (114). The bottom end of the second suspension rope (130) is connected to the third hanging ring (314). The third hanging ring (314) is installed on the top of the upper support block (313).

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