Steel structure installation and hoisting auxiliary device

Abstract

The present invention discloses a steel structure installation and hoisting auxiliary device, comprising a base plate and a connecting column, wherein the base plate is provided with a stepped hole, the connecting column is inserted into the small hole of the stepped hole, the bottom of the connecting column is fixed with an electromagnet movable inside the stepped hole, the top of the connecting column is provided with a lifting ring, and a pressure-type auxiliary structure is also provided on the top of the base plate, the pressure-type auxiliary structure comprises a top plate fitted on the top of the connecting column, an elastic telescopic rod is installed between the top plate and the base plate, two groups of pressure connecting rods distributed left and right are provided on the lower surface of the top plate, an auxiliary pressure rod is hinged at one end of the pressure connecting rod away from the top plate, and two groups of protective parts distributed left and right are installed on the base plate, the protective parts move inwards due to the auxiliary pressure rod and can automatically reset after the auxiliary pressure rod loses its function. There is no need for the operator to go to the hoisting part to actively release the protective parts, and the safety factor will be higher.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure installation and hoisting, in particular to a steel structure installation and hoisting auxiliary device. Background Art

[0002] Steel structures are made of steel and are one of the main types of building structures. They primarily consist of components such as beams, columns, and trusses, made from sections and plates. Rust removal and prevention processes include silanization, pure manganese phosphating, water washing and drying, and galvanizing. Components are typically connected using welds, bolts, or rivets. Due to its light weight and simple construction, it is widely used in large factories, stadiums, and high-rise buildings. Traditional methods for hoisting H-shaped steel beams include direct hoisting with wire ropes or pre-welding lifting lugs onto the beams and then hoisting with wire ropes. This method not only causes significant wear on the wire ropes but also poses significant safety risks. Furthermore, the wire ropes can damage the coating on the steel components, while the welded lifting lugs can damage the component's performance. This increases workload and the resulting construction time. This is inconsistent with the current concept of green construction and the goal of saving costs and reducing construction time while ensuring quality and safety.

[0003] CN115490140A discloses a clip device and method for hoisting an H-shaped steel beam. The clip device includes left and right clips with the same structure and arranged opposite to each other. The left and right clips are both curved, with a plurality of left and right clip connection holes distributed on their upper portions. Left and right fixing plates are vertically arranged on the same side of the middle of the two, and left and right clip grooves are respectively provided on their lower portions. Nut holes are respectively provided on the left and right fixing plates, and fastening screws are commonly provided in the nut holes of the two. The front and rear sides of the fastening screws are respectively provided with forward and reverse rod wires, which are respectively threadedly connected to the two nut holes. The application of the present invention can effectively solve the problems of low safety, significant damage to the performance of the original components, increased workload, and long hoisting period when directly using steel wire ropes or welding lifting lugs on the steel beams when hoisting H-shaped steel beams in the prior art. However, this technology has certain disadvantages. For example, the H-shaped steel can only be clamped by adjusting the fastening screws to facilitate the subsequent lifting work. However, after the lifting is completed, the fastening screws need to be released in the reverse direction to complete the clamping state of the H-shaped steel and to achieve the effect of continuing the lifting. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and therefore a steel structure installation and lifting auxiliary device is proposed, which drives the connecting column to adsorb the H-shaped steel through the electromagnet, thereby driving the top plate to move downward. After the top plate moves downward, the pressure connecting rod rotates downward, driving the two auxiliary pressure rods to rotate downward, applying pressure to the protective part inward, hooking the top two sides of the H-shaped steel, and then cooperating with the lifting structure to lift the H-shaped steel. Through the joint action of the protective part and the battery iron, the H-shaped steel can be lifted quickly and efficiently. When the electromagnet releases the adsorption force, the H-shaped steel can be released, and there is no need for the operator to go to the lifting position to actively release it, and the safety factor will be higher.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The steel structure installation and lifting auxiliary device includes a base plate and a connecting column. The base plate is provided with a stepped hole. The connecting column is socketed in the small hole of the stepped hole. The bottom of the connecting column is fixed with an electromagnet that moves inside the stepped hole. The top of the connecting column is provided with a lifting ring. A pressure-type auxiliary structure is also provided on the top of the base plate. The pressure-type auxiliary structure includes a top plate mounted on the top of the connecting column. An elastic telescopic rod is installed between the top plate and the base plate. Two groups of pressure links distributed on the left and right are provided on the lower surface of the top plate. An auxiliary pressure rod is hinged at one end of the pressure link away from the top plate. Two groups of protective parts distributed on the left and right are installed on the base plate. The auxiliary pressure rod acts to move the protective parts inward and can automatically reset after the auxiliary pressure rod loses its effect.

[0007] Based on the above embodiment, the following improvements are made. The protective member includes an adjusting column installed at the lower part of the base plate, a guide groove is arranged inside the adjusting column, a plug-in is movably installed inside the guide groove through a reset member, a screw rod passing through the guide groove is installed at the root of the plug-in, and a pressure block is installed at the end of the screw rod located outside the guide groove.

[0008] Based on the above embodiment, the following improvement is made: the pressure block is a ball head structure, and a guide groove adapted to the ball head structure is provided on one side of the auxiliary pressure rod opposite to the pressure block.

[0009] Based on the above embodiment, the following improvements are made: a T-slot is provided on the lower surface of the base plate, the top of the adjusting column is socketed in the T-slot, a pressure plate is installed in the T-slot, a bolt passing through the base plate is installed on the top of the pressure plate, and an elastic part is installed on the outside of the bolt, and the side where the pressure plate and the adjusting column contact is a tooth structure.

[0010] Based on the above embodiment, the following improvements are made: a pressure body is arranged on the connecting column, and a plurality of anti-slip parts are rotatably mounted on the bottom plate, and the plurality of anti-slip parts are circumferentially distributed around the periphery of the connecting column.

[0011] Based on the above embodiment, the following improvements are made. The anti-slip component includes a rotating body rotatably mounted on the base plate, and a mounting groove is provided on the base plate. Part of the rotating body is located inside the mounting groove, and the end located inside the mounting groove is connected to the side wall of the mounting groove through a spring. The outer edge of the rotating body is provided with teeth and the teeth are eccentrically arranged relative to the rotation node of the rotating body. One end of the rotating body is located outside the mounting groove and inside the projection of the pressure plate on the horizontal plane.

[0012] Based on the above embodiment, the following improvements are made, which also includes a movable part fixed on the top plate and a fixed part fixed on the bottom plate. The positions of the fixed part and the movable part correspond to each other and a protective structure is connected between the two. A hook rod is rotatably installed on the bottom plate, and an auxiliary pull rod is rotatably installed on the top plate, and the end of the auxiliary pull rod is rotatably arranged on the rod body of the hook rod.

[0013] Based on the above embodiment, the following improvements are made: the protective structure includes an elastic body mounted on a fixed member, a movable body arranged relative to the fixed member is arranged on the free end of the elastic body, and a movable body arranged on the movable body The fixed part is provided with a guide groove and a supporting structure for contacting the end of the movable part. A limit pin is rotatably installed inside the fixed part. The end of the limit pin is provided with a The hook head of the guide groove has circumferential motion.

[0014] Based on the above embodiment, the following improvements are made: an elastic limiting structure is arranged on the movable body, a card slot adapted to the elastic limiting structure is arranged on the movable part, and a guide area of ​​a slope structure is arranged on the fixed part for allowing the elastic limiting structure to enter the card slot.

[0015] Based on the above embodiment, the following improvement is made: the hook rods and auxiliary pull rods are provided in two groups and are distributed on the left and right sides respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention aims to solve the problem that the traditional technology requires adjusting the fastening screw to complete the clamping of the H-shaped steel to facilitate the subsequent hoisting work, but after the hoisting is completed, the fastening screw needs to be reversed to release the fastening screw to complete the clamping state of the H-shaped steel and to achieve the effect of continuing the hoisting. This embodiment specifically solves this type of problem through the following scheme: the electromagnet drives the connecting column to adsorb the H-shaped steel, thereby driving the top plate to move downward. After the top plate moves downward, the pressure connecting rod rotates downward, driving the two auxiliary pressure rods to rotate downward, applying pressure to the protective part inward, hooking the top two sides of the H-shaped steel, and then cooperating with the lifting structure to hoist the H-shaped steel. Through the combined action of the protective part and the electromagnet, the H-shaped steel can be hoisted quickly and efficiently, and the H-shaped steel can be released when the electromagnet releases the adsorption force. Furthermore, by completing the above-mentioned actions, the present embodiment does not require the operator to go to the hoisting part to actively release the steel, and the safety factor will be higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the overall structure of the adjustment column of the present invention;

[0019] Figure 2 This is a schematic diagram of the plug-in installation structure inside the adjustment column of the present invention;

[0020] Figure 3 This is a cross-sectional view of the overall structure of the anti-slip component of the present invention;

[0021] Figure 4 for Figure 3 Connection diagram of the middle anti-drop component and the mounting slot;

[0022] Figure 5 A diagram showing the connection between the auxiliary pull rod and the hook rod of the present invention;

[0023] Figure 6 A diagram showing the connection relationship between the movable part and the fixed part of the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the fixing member of the present invention;

[0025] Figure 8 For the present invention Structural diagram of the guide groove;

[0026] Figure 9 Schematic diagram of the overall structure of the mobile body in the present invention;

[0027] Figure 10 It is a structural schematic diagram of the limiting needle in the present invention.

[0028] In the figure: 10, bottom plate; 11, T-slot; 12, pressure plate; 13, elastic member; 14, bolt; 15, mounting slot; 20, connecting column; 21, guide slot; 22, screw; 23, plug-in; 24, pressure block; 25, reset member; 26, pressure body; 27, anti-slip member; 30, stepped hole; 40, lifting ring; 50, electromagnet; 60, top plate; 61, elastic telescopic rod; 62, pressure connecting rod; 621, guide area; 63, auxiliary pressure rod; 631, guide groove; 632, card slot; 64, hook rod; 65, auxiliary pull rod; 66, elastic body; 67, moving body; 671, elastic limiting structure; 672, Type guide groove; 68, supporting structure; 69, limit pin; 691, hook; 610, movable part; 611, fixed part. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, a steel structure installation and lifting auxiliary device includes a base plate 10 and a connecting column 20. The base plate 10 is provided with a stepped hole 30. The connecting column 20 is socketed in the small hole of the stepped hole 30. The bottom of the connecting column 20 is fixed with an electromagnet 50 that moves inside the stepped hole 30. The top of the connecting column 20 is provided with a lifting ring 40. A pressure-type auxiliary structure is also provided on the top of the base plate 10. The pressure-type auxiliary structure includes a top plate 60 that is sleeved on the top of the connecting column 20. An elastic telescopic rod 61 is installed between the top plate 60 and the base plate 10. Two groups of pressure connecting rods 62 distributed on the left and right are provided on the lower surface of the top plate 60. The pressure connecting rod 62 is hinged to an auxiliary pressure rod 63 at one end away from the top plate 60. Two groups of protective parts distributed on the left and right are installed on the base plate 10. The auxiliary pressure rod 63 acts to move the protective parts inward and can automatically reset after the auxiliary pressure rod 63 loses its effect.

[0033] In this embodiment, in order to solve the problem that the traditional technology requires adjusting the fastening screw to complete the clamping state of the H-beam to facilitate the subsequent lifting work, but after the lifting is completed, the fastening screw needs to be reversed to release the fastening screw to complete the clamping state of the H-beam and achieve the effect of continuing the lifting. This embodiment specifically solves this problem through the following scheme: the electromagnet 50 drives the connecting column 20 to adsorb on the H-beam, thereby driving the top plate 60 to move downward. After the top plate 60 moves downward, the pressure connecting rod 62 rotates downward, driving the two auxiliary pressure rods 63 to rotate downward, applying pressure to the protective member inward, hooking the top two sides of the H-beam, and then cooperating with the lifting structure to lift the H-beam. Through the combined action of the protective member and the electromagnet 50, the H-beam can be lifted quickly and efficiently, and when the electromagnet 50 releases the adsorption force, the H-beam can be released. Furthermore, by completing the above-mentioned action, the operator does not need to go to the lifting position to actively release the H-beam, which will increase the safety factor.

[0034] The protective member includes an adjustment column 70 mounted on the lower portion of the base plate 10. A guide groove 21 is arranged inside the adjustment column 70. An insert 23 is movably mounted inside the guide groove 21 via a reset member 25 (spring). A screw 22 is mounted at the root of the insert 23, which passes through the guide groove 21. A pressure block 24 is mounted at the end of the screw 22 located outside the guide groove 21. The pressure block 24 is a ball head structure. A guide groove 631 that matches the ball head structure is provided on the side of the auxiliary pressure rod 63 opposite the pressure block 24. The guide groove 631 can stably and reliably act on the pressure block 24 when the auxiliary pressure rod 63 is pressed down, so that the insert 23 can stably hook the top side of the H-shaped steel. After the auxiliary pressure rod 63 acts on the pressure block 24, the plug-in 23 can be moved toward the middle of the H-shaped steel through the screw rod 22, while compressing the reset part 25. When the auxiliary pressure rod 63 is reset, the reset part 25 can automatically reset the plug-in 23 to its initial state, and then separate it from the H-shaped steel.

[0035] When in use, the hook of the lifting device is hooked to the lifting ring 40, and the device is lifted above the H-shaped steel, after the electromagnet 50 is energized, the electromagnet 50 drives the connecting column 20 to move down and adsorb the top of the H-shaped steel, and the top plate 60 moves down accordingly and compresses the elastic telescopic rod 61, driving the pressure link 62 to rotate downward and driving the auxiliary pressure rod 65 to rotate downward, and the auxiliary pressure rod 65 drives the pressure block 24 through the screw to drive the plug-in 23 to compress the reset part 25, and insert the plug-in 23 to the lower side of the top of the H-shaped steel to hook its H-shaped steel. When the lifting is completed, the electromagnet 50 is powered off, and the electromagnet 50, the connecting column 20, and the top plate 60 are reset under the action of the elastic telescopic rod 61. The reset of the top plate 60 will reset the pressure link 62 and the auxiliary pressure rod 65, and the plug-in 23 will be reset from the lower side of the top of the H-shaped steel under the action of the reset part 25. At this time, the device and the H-shaped steel will be completely separated, and the lifting task is completed.

[0036] Based on the above embodiment, the following improvements are made: Figure 3 As shown, a T-slot 11 is provided on the lower surface of the base plate 10, and the top of the adjusting column 70 is inserted into the T-slot 11. A pressure plate 12 is installed inside the T-slot 11. A bolt 14 passing through the base plate 10 is installed on the top of the pressure plate 12, and an elastic part 13 (spring) is installed on the outside of the bolt 14. The side where the pressure plate 12 contacts the adjusting column 70 is a tooth structure.

[0037] In this embodiment, in order to solve the problem of being able to complete the hoisting work of H-shaped steels of different specifications and models, the following solution is adopted. In this embodiment, the adaptation of H-shaped steels of different models can be achieved by adjusting the adjustment column 70 left and right. The bottom of the pressure plate 12 and the top of the adjustment column 70 are separated by lifting the bolt 24. After the connecting column 20 is adjusted into place, the bolt 24 is released. The pressure plate 12 will be reset under the action of the elastic member 13 and the top of the adjustment column 70 will be restricted again through the tooth structure, thereby completing the position adjustment of the adjustment column 70. By adjusting the position of the adjustment column 70, the hoisting of H-shaped steels of different models can be achieved. After adjusting the adjustment column 70, the screw 22 on the plug-in 23 needs to be adaptively adjusted in length.

[0038] Based on the above embodiment, the following improvements are made: Figure 3 and Figure 4 As shown, a pressure body 26 is arranged on the connecting column 20, and a plurality of anti-slip parts 27 are rotatably installed on the base plate 10. The plurality of anti-slip parts 27 are circumferentially distributed on the periphery of the connecting column 20. The anti-slip part 27 includes a rotating body rotatably installed on the base plate 10. A mounting groove 15 is arranged on the base plate 10. The rotating body is partially located inside the mounting groove 15 and the end located inside the mounting groove 15 is connected to the side wall of the mounting groove 15 through a spring. The outer edge of the rotating body is provided with teeth and the teeth are eccentrically arranged relative to the rotation node of the rotating body. One end of the rotating body is located outside the mounting groove 15 and inside the projection of the pressure plate 12 on the horizontal plane.

[0039] In this embodiment, to prevent the H-beam from shifting during the hoisting process, which could result in unsafe hoisting, the following solution is employed. When the electromagnet 50 attracts the H-beam, the connecting column 20 can press down the anti-slip member 27 via the pressure-applying body 26. Because the anti-slip member 27 is provided with a toothed pattern on its periphery, it prevents the H-beam from swaying, improving the safety and reliability of the hoisting.

[0040] Based on the above embodiment, the following improvements are made: Figures 1 to 5As shown, it also includes a movable part 610 fixed on the top plate 60 and a fixed part 611 fixed on the bottom plate 10. The fixed part 611 and the movable part 610 correspond to each other and a protective structure is connected between the two. A hook rod 64 is rotatably installed on the bottom plate 10, and an auxiliary pull rod 65 is rotatably installed on the top plate 60. The end of the auxiliary pull rod 65 is rotatably arranged on the rod body of the hook rod 64. The protective structure includes an elastic body 66 (spring) installed on the fixed part 611. The free end of the elastic body 66 is provided with a movable body 67 that is movably arranged relative to the fixed part 611. The movable body 67 is provided with a spring. The guide groove 672 and the supporting structure 68 abutting the end of the movable member 610, the fixed member 611 is also rotatably installed with a limit pin 69, and the end of the limit pin 69 is provided with a The hook head 691 of the guide groove 672 circumferentially moves. The depth of the guide groove 672 is shown in the figure. The movable body 67 is provided with an elastic retaining structure 671. The movable member 610 is provided with a slot 632 adapted to the elastic retaining structure 671. The fixed member 611 is provided with a guide area 621 with a slope structure for guiding the elastic retaining structure 671 into the slot 632. Two sets of hook rods 64 and auxiliary pull rods 65 are provided, one on the left and one on the right.

[0041] In this embodiment, in order to further achieve safety, the H-shaped steel is prone to fall after the electromagnet 50 is powered off, and then a safety accident occurs. How to avoid the above-mentioned problem on site has always been a difficult problem that has troubled people in this field. Therefore, the following solution is adopted in this embodiment to effectively overcome it. Specifically, when the electromagnet 50 absorbs the H-shaped steel, the end of the movable part will drive the movable body 67 downward through the supporting structure 68. The movable body 67 will first move downward to stretch the elastic body 66, and the hook 691 of the limit pin 69 will first move along the The left side of the guide groove 672 moves, and when the hook head is located at The left top of the guide groove 672, at this time, if the electromagnet 50 loses its adsorption effect, the moving body 67 will move up a short distance, and the hook 691 of the limit pin 69 will enter The top center of the guide groove 672 is at the top. At this time, the hook rod 64 is still in the state of hooking the H-shaped steel. When the H-shaped steel is hoisted to the position, the H-shaped steel is lowered. The hook will press the top plate 60, so that the top plate 60 moves downward relative to the bottom plate 10. The movable body 67 will be pressed and move downward again for a short distance. The hook head 691 of the limit pin 69 will enter The top right side of the guide groove 672, when the hook removes the top plate 60, the hook head 691 of the limit pin 69 will enter At the bottom of the H-shaped guide groove 672, the auxiliary pull rod 65 will rotate the hook rod 64 outward, so that it can be automatically separated from the H-shaped steel. During the downward movement of the moving body 67, the elastic limiting structure 671 can be pressed into the inside of the slot 632 through the guide area and the hook head 691 is located at When the hook rod 64 is at the top center of the H-shaped guide groove 672, the locking groove 632 can be locked, so that the hook rod 64 can still hook and hoist the H-shaped steel after the electromagnet 50 loses its adsorption effect.

[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A steel structure installation and hoisting auxiliary device, characterized in that: The invention comprises a bottom plate (10) and a connecting column (20), wherein a stepped hole (30) is arranged on the bottom plate (10), a connecting column (20) is inserted into a small hole of the stepped hole (30), an electromagnet (50) movable inside the stepped hole (30) is fixed to the bottom of the connecting column (20), a hanging ring (40) is arranged on the top of the connecting column (20), and a pressure-type auxiliary structure is also arranged on the top of the bottom plate (10), the pressure-type auxiliary structure comprising a sleeve on the top of the connecting column (20) A top plate (60) is provided, and an elastic telescopic rod (61) is installed between the top plate (60) and the bottom plate (10). Two groups of pressure connecting rods (62) distributed on the left and right are provided on the lower surface of the top plate (60). An auxiliary pressure rod (63) is hingedly connected to one end of the pressure connecting rod (62) away from the top plate (60). Two groups of protective members distributed on the left and right are installed on the bottom plate (10). The auxiliary pressure rod (63) causes the protective members to move inward and can automatically reset after the auxiliary pressure rod (63) loses its function. The protective member comprises an adjusting column (70) mounted on the lower portion of the base plate (10), a guide groove (21) being arranged inside the adjusting column (70), a plug-in unit (23) being movably mounted inside the guide groove (21) via a reset unit (25), a screw rod (22) penetrating the guide groove (21) being mounted at the root of the plug-in unit (23), and a pressure block (24) being mounted at the end of the screw rod (22) located outside the guide groove (21); A pressure-applying body (26) is arranged on the connecting column (20), and a plurality of anti-slipping parts (27) are rotatably mounted on the bottom plate (10), and the plurality of anti-slipping parts (27) are circumferentially distributed around the periphery of the connecting column (20); The anti-slip member (27) includes a rotating body rotatably mounted on the base plate (10), the base plate (10) is provided with a mounting groove (15), a portion of the rotating body is located inside the mounting groove (15), and an end portion located inside the mounting groove (15) is connected to a side wall of the mounting groove (15) via a spring, an outer edge of the rotating body is provided with tooth patterns, and the tooth patterns are eccentrically arranged relative to a rotation node of the rotating body, and one end of the rotating body is located outside the mounting groove (15) and inside a projection of the pressure plate (12) on a horizontal plane.

2. A steel structure installation and hoisting auxiliary device according to claim 1, characterized in that: The pressure-bearing block (24) is a ball-head structure, and a guide groove (631) adapted to the ball-head structure is provided on one side of the auxiliary pressure rod (63) relative to the pressure-bearing block (24).

3. The steel structure installation and hoisting auxiliary device according to claim 1, characterized in that: The lower surface of the base plate (10) is provided with a T-slot (11), the top of the adjusting column (70) is inserted into the T-slot (11), a pressure plate (12) is installed inside the T-slot (11), a bolt (14) passing through the base plate (10) is installed on the top of the pressure plate (12), and an elastic member (13) is sleeved on the outer side of the bolt (14), and the side where the pressure plate (12) and the adjusting column (70) contact is a tooth structure.

4. The steel structure installation and hoisting auxiliary device according to claim 1, characterized in that: The invention also includes a movable part (610) fixed on the top plate (60) and a fixed part (611) fixed on the bottom plate (10), wherein the fixed part (611) and the movable part (610) are positioned correspondingly and a protective structure is connected between the two. A hook rod (64) is rotatably mounted on the bottom plate (10), and an auxiliary pull rod (65) is rotatably mounted on the top plate (60), and the end of the auxiliary pull rod (65) is rotatably arranged on the rod body of the hook rod (64).

5. The steel structure installation and hoisting auxiliary device according to claim 4, characterized in that: The protective structure includes an elastic body (66) mounted on a fixed part (611), a movable body (67) arranged movably relative to the fixed part (611) is arranged on the free end of the elastic body (66), a ♡-shaped guide groove (672) and a supporting structure (68) abutting against the end of the movable part (610) are arranged on the movable body (67), and a limit pin (69) is rotatably mounted inside the fixed part (611), and a hook head (691) is arranged at the end of the limit pin (69) so as to circumferentially move along the ♡-shaped guide groove (672).

6. A steel structure installation and hoisting auxiliary device according to claim 5, characterized in that: An elastic limiting structure (671) is provided on the movable body (67), a clamping groove (632) adapted to the elastic limiting structure (671) is provided on the movable member (610), and a guide area (621) of a slope structure is provided on the fixed member (611) for guiding the elastic limiting structure (671) into the clamping groove (632).

7. The steel structure installation and hoisting auxiliary device according to claim 4, characterized in that: The hook rods (64) and auxiliary pull rods (65) are arranged in two groups and are respectively distributed on the left and right sides.

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