Steel structure hoisting assembly

Abstract

The utility model relates to the field of steel structure hoisting equipment, in particular to a steel structure hoisting assembly. The device comprises I-shaped steel and two sets of hoisting clamps movably clamped on the I-shaped steel, a distance adjusting assembly is connected between the two sets of hoisting clamps, the two sets of hoisting clamps are symmetrical and identical in structure, and the top of each set of hoisting clamps is provided with a hoisting ring; according to the device, the I-shaped steel can be automatically clamped inwards in the hoisting process through the hoisting clamp by utilizing the gravity of the I-shaped steel, so that the I-shaped steel is firmly clamped, and the stability of the hoisting process is guaranteed; according to the device, an anti-retreating structure is used, the ratchet wheel is matched with the pawl, and the clamp can only rotate in one direction and cannot be opened reversely in the hoisting process, so that interference caused by external force in the hoisting process is prevented, and the possibility that I-shaped steel falls off in the air is eradicated; and the distance adjusting assembly is used, the length of the device can be adjusted, and therefore the device can be suitable for I-shaped steel of different lengths and is good in practicability.

Description

Technical Field

[0001] The utility model relates to the field of steel structure hoisting equipment, in particular to a steel structure hoisting component. Background Art

[0002] Steel structure is a structure made of steel materials. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates. Most of the components of steel structure are large in size and heavy in weight. It is necessary to use lifting equipment and special lifting tools to suspend the steel structure, so as to lift, move and install the steel structure.

[0003] Different lifting tools are required according to the different shapes of steel structure components. For example, I-beams are used in different ways according to different sites. For example, in some small-batch lifting sites, wire ropes are often used directly for winding, and then the lifting is performed directly from the wire ropes. The steel structure needs to be lifted for operation, which is time-consuming and has high safety risks during the lifting process. In some sites, welding is used to weld lifting rings on the steel structure, and the lifting rings are cut off after the lifting is completed. However, after removal, the joints need to be ground and polished to restore the original flatness, which is time-consuming and labor-intensive and requires professional welding personnel to operate. At the same time, the coating on the surface of the steel body will be damaged. The existing lifting tools for I-beam lifting require screws for fixing during installation. Workers need to operate and twist the screws until the tools clamp the I-beams before lifting can be performed. The screws are loosened after the lifting is completed, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a reasonably designed steel structure hoisting component to solve the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises an I-beam and two sets of lifting clamps movably clamped on the I-beam, an adjusting component is connected between the two sets of lifting clamps, the structures of the two sets of lifting clamps are symmetrical and the same, and a lifting ring is provided on the top of each set of lifting clamps.

[0006] Preferably, the lifting clamp comprises an outer clamp arm and an inner clamp arm which are cross-rotatably connected, the top ends of the outer clamp arm and the inner clamp arm are movably connected to a fixed plate through a connecting rod, and the lifting ring is fixed to the fixed plate; the bottom ends of the outer clamp arm and the inner clamp arm are connected to a transverse clamp head, and the transverse clamp heads are arranged in the transverse groove of the I-beam, and an anti-retraction structure is provided on the side of the rotational connection between the outer clamp arm and the inner clamp arm.

[0007] Preferably, the anti-retreat structure includes a semi-ratchet arranged on the outer clamp arm, a pawl matching the semi-ratchet is rotatably installed on the inner clamp arm through a rotating shaft, a fixed block is provided on the inner clamp arm above the pawl, a spring is connected between the lower end of the fixed block and the head of the pawl, and a movable limiting assembly is provided above the pawl.

[0008] Preferably, the movable limit assembly includes a slide groove opened on the inner clamp arm, magnetic blocks are respectively provided at both ends of the slide groove, a slider is slidably installed in the slide groove, metal blocks that attract the magnetic blocks are provided on both sides of the slider, a limit rod is fixed on the outside of the slider, and a movable rod is connected to the top of the pawl.

[0009] Preferably, the distance adjustment component includes a telescopic rod connected to one of the lifting fixtures, and a telescopic sleeve connected to the other lifting fixture. The telescopic rod is slidably installed in the telescopic sleeve. The telescopic sleeve and the telescopic rod are provided with a plurality of linearly arranged adjustment holes. A movable pin is movably inserted into any overlapping adjustment hole of the telescopic rod and the telescopic sleeve, and a cotter pin is movably inserted at the bottom of the movable pin.

[0010] Preferably, an anti-slip pad is provided on the inner surface of the transverse clamp.

[0011] After adopting the above structure, the beneficial effects of the utility model are:

[0012] 1. This device uses the gravity of the I-beam through the lifting fixture to automatically clamp inward during the lifting process, thereby firmly clamping the I-beam and ensuring the stability of the lifting process.

[0013] 2. This device uses an anti-retraction structure, using the cooperation of a ratchet and a pawl to keep the clamp from rotating in one direction during the lifting process and not opening in the reverse direction, thereby preventing interference from external forces during the lifting process and eliminating the possibility of the I-beam falling in the air.

[0014] 3. This device uses a distance adjustment component to adjust the length of the device, so that it can be suitable for I-beams of different lengths and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model when it is used;

[0016] Figure 2 It is a structural schematic diagram of the lifting fixture in the utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0018] Figure 4 It is a schematic diagram of the limiting rod in the utility model limiting the movable rod;

[0019] Figure 5 It is a structural schematic diagram of the distance adjustment component in the utility model.

[0020] Description of reference numerals:

[0021] 1. I-beam; 2. Outer clamp arm; 3. Inner clamp arm; 4. Horizontal clamp; 5. Anti-skid pad; 6. Half ratchet; 7. Paw; 8. Rotating shaft; 9. Movable rod; 10. Fixed block; 11. Spring; 12. Slide groove; 13. Magnetic block; 14. Sliding block; 15. Limit rod; 16. Telescopic rod; 17. Telescopic shaft sleeve; 18. Adjustment socket; 19. Movable pin shaft; 20. Lifting ring; 21. Fixed plate; 22. Split pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 2 As shown, it comprises an I-beam 1 and two sets of lifting fixtures movably clamped on the I-beam 1, a distance adjustment component is connected between the two sets of lifting fixtures, the structures of the two sets of lifting fixtures are symmetrical and the top of each set of lifting fixtures is provided with a lifting ring 20.

[0024] See also Figure 1-Figure 4 As shown, the lifting clamp includes an outer clamp arm 2 and an inner clamp arm 3 that are cross-rotatably connected. The top ends of the outer clamp arm 2 and the inner clamp arm 3 are movably connected to a fixed plate 21 through a connecting rod, and the lifting ring 20 is fixed to the fixed plate 21; the bottom ends of the outer clamp arm 2 and the inner clamp arm 3 are connected to a transverse clamp 4, and an anti-slip pad 5 is provided on the inner surface of the transverse clamp 4. The transverse clamp 4 is arranged in the transverse groove of the I-beam 1, and an anti-retreat structure is provided on the side of the rotation connection between the outer clamp arm 2 and the inner clamp arm 3.

[0025] As an optimization scheme of the utility model, by setting a crossed outer clamp arm 2 and inner clamp arm 3, during hoisting, the gravity of the I-beam 1 itself is utilized to reduce the angle between the outer clamp arm 2 and the inner clamp arm 3, increase the longitudinal height and shorten the lateral distance, and the lateral clamp heads 4 at the bottom ends of the outer clamp arm 2 and the inner clamp arm 3 can continuously clamp inwards, thereby firmly clamping the I-beam 1.

[0026] See also Figure 1-Figure 4As shown, the anti-retraction structure includes a semi-ratchet 6 arranged on the outer clamp arm 2, a pawl 7 matching the semi-ratchet 6 is rotatably mounted on the inner clamp arm 3 through a rotating shaft 8, a fixing block 10 is arranged on the inner clamp arm 3 above the pawl 7, a spring 11 is connected between the lower end of the fixing block 10 and the head of the pawl 7, and a movable limit assembly is arranged above the pawl 7;

[0027] The movable limiting assembly includes a slide groove 12 opened on the inner clamp arm 3, with magnetic blocks 13 respectively provided at both ends of the slide groove 12, a slider 14 slidably installed in the slide groove 12, and metal blocks that attract the magnetic block 13 are provided on both sides of the slider 14, a limiting rod 15 is fixed on the outer side of the slider 14, and a movable rod 9 is connected to the top of the pawl 7.

[0028] As an optimization scheme of the utility model, a semi-ratchet 6 and a pawl 7 are provided. During the lifting process, the angle between the outer clamp arm 2 and the inner clamp arm 3 is reduced, and the two rotate relative to each other. At the same time, the spring 11 pushes the pawl 7 to always maintain engagement with the semi-ratchet 6 to prevent rotation, thereby locking the outer clamp arm 2 and the inner clamp arm 3 to prevent opening, thereby ensuring safety during the lifting process. When the restriction needs to be lifted, it is only necessary to push the movable rod 9 outward to make the pawl 7 leave the semi-ratchet 6, and at the same time, move the limit rod 15 and the slider 14 downward so that the magnet block 13 of the slider 14 is adsorbed with the magnet block 13 below, and the limit rod 15 can block the movable rod 9 to keep the pawl 7 separated from the semi-ratchet 6.

[0029] See also Figure 1-Figure 5 As shown, the distance adjustment component includes a telescopic rod 16 connected to one lifting fixture, and a telescopic sleeve 17 is connected to the other lifting fixture. The telescopic rod 16 is slidably installed in the telescopic sleeve 17. The telescopic sleeve 17 and the telescopic rod 16 are both provided with a plurality of linearly arranged adjustment holes 18. A movable pin 19 is movably inserted into any of the overlapping adjustment holes 18 of the telescopic rod 16 and the telescopic sleeve 17, and a cotter pin 22 is movably inserted at the bottom of the movable pin 19.

[0030] As an optimization solution of the utility model, a telescopic rod 16 and a telescopic sleeve 17 are provided, which can slide freely, thereby adjusting the distance between the two sets of lifting clamps to adapt to I-beams 1 of different lengths, and then the telescopic rod 16 and the telescopic sleeve 17 are fixed using a movable pin 19 and a cotter pin 22.

[0031] The use process of this utility model:

[0032] First, connect the two lifting rings 20 of the device to the lifting equipment, lift it and move it to the position of the I-beam 1 that needs to be lifted, and gradually lower it so that the bottom ends of the outer clamping arm 2 and the inner clamping arm 3 are located on both sides of the I-beam 1, and then lift it again. During the lifting process, due to the effect of gravity, the outer clamping arm 2 and the inner clamping arm 3 automatically rotate inward, so that the transverse clamp 4 enters the I-beam 1. The user can push the limit rod 15 and the slider 14 upward and adsorb them to the upper magnetic block 13. The movable rod 9 and the pawl 7 lose their restrictions and rotate downward under the action of the spring 11. The pawl 7 engages with the semi-ratchet 6, and Then continue to lift. Due to the gravity of the I-beam 1 itself, the outer clamping arm 2 and the inner clamping arm 3 will continue to clamp inwards to stably clamp the I-beam 1. At the same time, the cooperation of the semi-ratchet 6 and the pawl 7 ensures that the outer clamping arm 2 and the inner clamping arm 3 will not be easily disengaged even when disturbed by external force or even collided, thereby ensuring the safety of lifting. After the lifting is in place, the I-beam 1 stops moving while touching the ground, and the movable rod 9 is pushed outward to make the pawl 7 leave the semi-ratchet 6. The movable rod 9 is limited by the limit rod 15, and then the lifting equipment is controlled to be lowered, the lifting clamp is relaxed, and it can be opened automatically to complete the lifting.

[0033] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.

Claims

1. A steel structure hoisting assembly, comprising an I-beam (1), characterized in that: Two groups of lifting clamps are movably clamped on the I-beam (1), and a distance adjustment component is connected between the two groups of lifting clamps. The structures of the two groups of lifting clamps are symmetrical and the same, and a lifting ring (20) is arranged on the top of each group of lifting clamps.

2. The steel structure hoisting assembly according to claim 1, characterized in that: The lifting fixture comprises an outer clamp arm (2) and an inner clamp arm (3) which are cross-rotatably connected, the top ends of the outer clamp arm (2) and the inner clamp arm (3) are movably connected to a fixed plate (21) through a connecting rod, and the lifting ring (20) is fixed to the fixed plate (21); the bottom ends of the outer clamp arm (2) and the inner clamp arm (3) are connected to a transverse clamp head (4), and the transverse clamp head (4) is arranged in a transverse groove of the I-beam (1), and an anti-retraction structure is provided on the side of the rotation connection between the outer clamp arm (2) and the inner clamp arm (3).

3. The steel structure hoisting assembly according to claim 2, characterized in that: The anti-retraction structure comprises a semi-ratchet (6) arranged on the outer clamp arm (2), a pawl (7) matching the semi-ratchet (6) is rotatably mounted on the inner clamp arm (3) via a rotating shaft (8), a fixing block (10) is arranged on the inner clamp arm (3) above the pawl (7), a spring (11) is connected between the lower end of the fixing block (10) and the head of the pawl (7), and a movable limiting component is arranged above the pawl (7).

4. The steel structure hoisting assembly according to claim 3, characterized in that: The movable limiting assembly comprises a slide groove (12) provided on the inner clamp arm (3), magnetic blocks (13) are respectively provided at both ends of the slide groove (12), a slider (14) is slidably installed in the slide groove (12), metal blocks that attract the magnetic blocks (13) are provided on both sides of the slider (14), a limiting rod (15) is fixed on the outer side of the slider (14), and a movable rod (9) is connected to the upper side of the ratchet (7).

5. The steel structure hoisting assembly according to claim 4, characterized in that: The distance adjustment component comprises a telescopic rod (16) connected to one lifting fixture, a telescopic shaft sleeve (17) connected to the other lifting fixture, the telescopic rod (16) is slidably installed in the telescopic shaft sleeve (17), the telescopic shaft sleeve (17) and the telescopic rod (16) are both provided with a plurality of linearly arranged adjustment sockets (18), a movable pin shaft (19) is movably inserted into any of the overlapping adjustment sockets (18) of the telescopic rod (16) and the telescopic shaft sleeve (17), and a cotter pin (22) is movably inserted at the bottom of the movable pin shaft (19).

6. The steel structure hoisting assembly according to claim 5, characterized in that: An anti-slip pad (5) is provided on the inner surface of the transverse clamp (4).

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