Steel structure installation lifting appliance

Abstract

The utility model relates to the technical field of steel structure lifting appliances, and particularly discloses a steel structure mounting lifting appliance which comprises a cross beam, a lifting lug is arranged at the upper end of the cross beam, lifting arms are inserted into the two ends of the cross beam, lifting claws are arranged at the ends of the lifting arms, each lifting claw comprises a guide sleeve connected with the corresponding lifting arm, a gear is arranged in each guide sleeve, and the guide sleeves are connected with the lifting lugs. Drag hooks for pulling the steel structure are arranged on the two sides of the guide sleeve, the upper ends of the drag hooks are connected with pull rods in sliding fit with the guide sleeve, the pull rods are meshed with the gear through racks, a second positioning bolt for fixing the pull rods is arranged at the upper end of the guide sleeve, a supporting block is arranged on the side wall of the guide sleeve, and a pressing bolt matched with the upper end of the steel structure is arranged on the supporting block; the lifting appliance can be directly installed at the upper end of the I-shaped steel, the length of the lifting appliance does not need to be kept consistent with the I-shaped steel, the length of the lifting appliance is greatly shortened, and transportation and storage are facilitated; and the size is reduced, so that the use is more convenient, the cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure slings, in particular to a steel structure installation sling. Background Art

[0002] The existing methods for lifting I-beams are: one is to weld several lifting lugs at the corresponding positions on the steel structure. After the lifting is completed, the lugs need to be cut and removed, and then polished; the other is to use a steel wire rope, which is wrapped around the outside of the steel structure for lifting. However, the steel wire rope is prone to slipping between the steel structure, making the lifting process unstable and dangerous.

[0003] Patent CN221295885U discloses a lifting device for steel structure installation and construction, capable of being fixed to the steel structure for lifting. However, the device requires the U-shaped claws at both ends to mate with the ends of the steel structure. This requires the lifting device to be long enough to accommodate steel structures of varying lengths, resulting in a large size that is inconvenient for transportation and storage. Furthermore, its size limits its use, as it cannot be used if the length of the steel structure exceeds the maximum distance between the two U-shaped claws. Utility Model Content

[0004] The utility model is aimed at the above-mentioned deficiencies in the prior art and provides a steel structure installation sling, which can be directly installed on the upper end of the I-beam. Its length does not need to be consistent with the I-beam, which greatly shortens the length of the sling and facilitates transportation and storage. Due to the reduced size, it is also more convenient to use, reduces costs, and improves work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A steel structure installation hanger includes a crossbeam, an upper end of the crossbeam is provided with a lifting ear, both ends of the crossbeam are connected with a lifting arm, the end of the lifting arm is provided with a lifting claw, the lifting claw includes a guide sleeve connected to the lifting arm, a gear is provided in the guide sleeve, and hooks are provided on both sides of the guide sleeve for pulling the steel structure, the upper end of the hook is connected to a pull rod that slides with the guide sleeve, the pull rod is meshed with the gear through a rack, the upper end of the guide sleeve is provided with a second positioning bolt for fixing the pull rod, a support block is provided on the side wall of the guide sleeve, and the support block is provided with a tightening bolt that cooperates with the upper end of the steel structure.

[0007] Preferably, an anti-slip pad is provided at the bottom of the clamping bolt.

[0008] Preferably, a knob for rotating the gear is provided at the upper end of the guide sleeve.

[0009] Preferably, the upper end of the pull rod is provided with a second limiting groove that cooperates with the positioning bolt.

[0010] Preferably, a first elongated limiting groove is provided on the side wall of the boom, a positioning hole is provided in the first limiting groove, and a first positioning bolt cooperating with the positioning hole is provided on the side wall of the first crossbeam.

[0011] Preferably, two pressing bolts are symmetrically provided on the crossbeam, and anti-slip pads are provided at the bottom of the pressing bolts.

[0012] Preferably, an anti-slip pad is provided on the inner wall of the draw hook.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can be directly installed on the upper end of the I-beam, and its length does not need to be consistent with the I-beam, which greatly shortens the length of the spreader and facilitates transportation and storage. Due to the reduced size, it is more convenient to use, reduces costs, and improves work efficiency.

[0015] 2. The width of the lifting claw of the utility model can be adjusted, and can be matched with I-beams of different thicknesses and widths, which increases the versatility of use; the two hooks are adjusted synchronously to ensure the symmetry of the device and make the lifting more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is the main view of the utility model when in use;

[0018] Figure 3 This is a left side view of the utility model when in use;

[0019] Figure 4 It is a structural diagram of the coordination between the boom and the lifting claw;

[0020] Figure 5 Schematic diagram of the structure of the retractor;

[0021] Figure 6 is a cross-sectional view of the lifting claw;

[0022] In the figure: 1-crossbeam; 101-lifting ear; 102-pressing bolt; 103-first positioning bolt; 2-lifting arm; 201-positioning hole; 202-first limiting groove; 3-lifting claw; 301-guide sleeve; 302-knob; 303-clamping bolt; 304-support block; 305-second positioning bolt; 306-pull hook; 307-pull rod; 308-rack; 309-second limiting groove; 310-gear; 311-anti-slip pad; 4-I-beam. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a steel structure installation hanger includes a crossbeam 1, an upper end of the crossbeam 1 is provided with a lifting lug 101, two lifting lugs 101 are symmetrically arranged, both ends of the crossbeam 1 are plugged with a lifting arm 2, and the end of the lifting arm 2 is provided with a lifting claw 3.

[0025] The middle part of the beam 1 is a solid structure, and the two ends are hollow and not connected, and are respectively connected with a boom 2. A long first limiting groove 202 is provided on the side wall of the boom 2, and a plurality of positioning holes 201 are provided in the first limiting groove 202. A first positioning bolt 103 cooperating with the positioning hole 201 is provided on the side wall of the first beam 1. The first positioning bolt 103 can limit the stroke of the boom 2, and the first positioning bolt 103 can be combined with the positioning hole 201 to fix the boom 2. The boom 2 can be fixed in multiple positions, and the length of the boom 2 can be appropriately adjusted according to the length of the steel structure.

[0026] like Figure 4 As shown, the lifting claw 3 includes a guide sleeve 301 connected to the lifting arm 2, as shown in FIG. Figure 6 As shown, a gear 310 is provided within the guide sleeve 301. Hooks 306 are provided on both sides of the guide sleeve 301 to hold the I-beam 4. The upper ends of the hooks 306 are connected to pull rods 307 that slide with the guide sleeve 301. The two pull rods 307 are located on either side of the gear 310 and mesh with the gear 310 via a rack 308, thereby achieving synchronous adjustment. A second positioning bolt 305 is provided at the upper end of the guide sleeve 301 to secure the pull rods 307 and secure the hooks 306, ensuring safe and reliable lifting. A support block 304 is provided on the side wall of the guide sleeve 301. The support block 304 is equipped with a clamping bolt 303 that engages with the upper end of the steel structure. The clamping bolt 303 presses down on the I-beam 4, causing the hooks 306 to tighten the I-beam 4. The clamping bolt 303 and the hooks 306 cooperate to clamp the I-beam 4 securely. I-beams 4 of varying thicknesses and widths can be used.

[0027] In order to facilitate the adjustment of the retractor 306 , a knob 302 for rotating the gear 310 is provided at the upper end of the guide sleeve 301 .

[0028] like Figure 5 As shown, a second limiting groove 309 cooperating with a positioning bolt is provided at the upper end of the pull rod 307, which can prevent the pull rod 307 from separating from the guide sleeve 301 and ensure reliability of use.

[0029] In order to further improve the firmness of the coordination between the sling and the steel structure, Figure 2 As shown, two downward pressing bolts 102 are symmetrically provided on the crossbeam 1, which can also disperse the force and improve stability.

[0030] In the present application, anti-slip pads 311 are provided at the bottom of the clamping bolt 303, the bottom of the pressing bolt 102 and the inner wall of the hook 306, which can increase the friction between the steel structure and prevent the steel structure from being scratched.

[0031] like Figure 2 、 Figure 3 As shown, when in use, the length of the boom 2 is adjusted according to the length of the steel structure. If the steel structure is relatively long, the boom 2 will increase the length extending from the beam 1 accordingly. During installation, the middle part of the beam 1 corresponds to the middle position of the I-beam 4, and then the knob 302 is turned to make the hook 306 clamped to both sides of the I-beam 4, and the hook 306 is fixed by the second positioning bolt 305, and the clamping bolt 303 is turned and pressed against the upper end of the I-beam 4, so that the hook 306 pulls the I-beam 4 upward, and the clamping bolt 303 and the hook 306 clamp the I-beam 4, and then the pressing bolt 102 is turned to press on the upper end of the I-beam 4, and the wire rope passes through the two lifting ears 101 for lifting.

[0032] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A steel structure installation hanger, comprising a crossbeam, a lifting lug provided at the upper end of the crossbeam, a lifting arm connected to both ends of the crossbeam, and a lifting claw provided at the end of the lifting arm, characterized in that: The lifting claw includes a guide sleeve connected to the lifting arm, a gear is provided in the guide sleeve, and hooks are provided on both sides of the guide sleeve to pull the steel structure. The upper end of the hook is connected to a pull rod that slides with the guide sleeve, and the pull rod is engaged with the gear through a rack. The upper end of the guide sleeve is provided with a second positioning bolt for fixing the pull rod, and a support block is provided on the side wall of the guide sleeve, and the support block is provided with a tightening bolt that cooperates with the upper end of the steel structure.

2. A steel structure installation hanger according to claim 1, characterized in that: An anti-slip pad is provided at the bottom of the clamping bolt.

3. A steel structure installation hanger according to claim 1, characterized in that: The upper end of the guide sleeve is provided with a knob for rotating the gear.

4. A steel structure installation hanger according to claim 1, characterized in that: The upper end of the pull rod is provided with a second limiting groove matched with the positioning bolt.

5. The steel structure installation hanger according to claim 1, characterized in that: A first elongated limiting groove is provided on the side wall of the boom, a positioning hole is provided in the first limiting groove, and a first positioning bolt matched with the positioning hole is provided on the side wall of the first crossbeam.

6. A steel structure installation hanger according to claim 1, characterized in that: Two pressing bolts are symmetrically arranged on the crossbeam, and anti-slip pads are arranged at the bottoms of the pressing bolts.

7. The steel structure installation hanger according to claim 1, characterized in that: An anti-slip pad is provided on the inner wall of the draw hook.

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