Hoisting device for mounting H-shaped steel beam

Abstract

The utility model relates to an H-shaped steel beam hoisting device, in particular to a hoisting device for installing an H-shaped steel beam, which comprises a hoisting vehicle and a hoisting arm, one side of the hoisting arm is connected with a hoisting ring and a hoisting table arranged at the bottom of the hoisting ring, and the hoisting table is provided with a limiting groove and two sliding grooves. A folding mechanism for limiting the steel beam and a sliding mechanism for pulling the folding mechanism to perform folding action are arranged at the bottom of the hoisting table; according to the utility model, through the cooperation of the folding mechanism and the sliding mechanism, the device can automatically, accurately and stably clamp the webs at the two ends of the steel beam at the falling stage of the hoisting platform, so that the initial stability and accuracy of the hoisting operation of the steel beam are greatly improved. And after the hoisting operation is carried out to a designated position, fixation can be stably, reliably and automatically released, unlocking is instantly completed, and efficient circulation of the hoisting task is guaranteed in an all-around mode.

Description

Technical Field

[0001] This utility model relates to an H-beam hoisting device, specifically a hoisting device for installing H-beams. Background Technology

[0002] In the field of building construction technology, various steel structure components are commonly used, such as H-beams, cross-shaped steel, and angle steel. Steel structure components are lightweight, easy to transport, and have a certain structural strength, so they are widely used in the construction of factories and stadiums.

[0003] During steel structure construction, especially before welding H-beams, steel plates must be hoisted to designated locations. H-beam hoisting typically utilizes wire ropes, hoisting holes, and lifting lugs. If wire ropes are used for binding and hoisting, they can damage the surface of the H-beam during the process, requiring subsequent repainting. Inadequate repainting can lead to rust. Furthermore, the use of wire ropes for traction during parallel movement can cause swaying, affecting accurate positioning. If hoisting holes are used, holes must be drilled in the flanges of the H-beam, with the hole placement meeting hoisting requirements without affecting the structure itself. If lifting lugs are used, they must be welded to the flanges of the H-beam. For some H-beams located between floors, the lugs need to be removed after hoisting, which is labor-intensive and may damage the base material.

[0004] This makes traditional sling binding and hoisting poses significant safety hazards. Therefore, nowadays, most methods use slings to fix the H-beams, and then slings are used to hang them on the hooks of the hoisting equipment for lifting. Currently, when the sling is lowered onto the H-beam and needs to be fixed, various tools are required to tighten the bolts to secure the H-beam. At the same time, after the hoisting is completed, tedious disassembly work is often required. Utility Model Content

[0005] The purpose of this utility model is to provide a hoisting device for installing H-beams, in order to solve the problem mentioned in the background art that the traditional hoisting method with slings has significant safety hazards. Therefore, most current methods use a hoisting seat to fix the H-beam, and then use slings to hang it on the hook of the hoisting equipment for hoisting. When the current hoisting seat is lowered onto the H-beam and needs to be fixed, various tools are required to tighten the bolts to secure the H-beam. At the same time, after the hoisting is completed, tedious disassembly work is often required.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hoisting device for installing H-beams includes a hoisting vehicle and a hoisting arm. One side of the hoisting arm is connected to a lifting ring and a hoisting platform disposed at the bottom of the lifting ring. The hoisting platform is provided with a limit groove and two sliding grooves. The bottom of the hoisting platform is provided with a retraction mechanism for limiting the steel beam and a sliding mechanism for pulling the retraction mechanism to perform a retraction action.

[0008] The sliding mechanism includes an elastic locking mechanism and a pressing mechanism disposed above the elastic locking mechanism for squeezing the elastic locking mechanism. The elastic locking mechanism cooperates with the retracting mechanism.

[0009] The hoisting device for installing H-beams as described above: the folding mechanism includes two bearing seats located at the bottom of the hoisting platform and a shaft body located on the bearing seats. A rotating arm for limiting the position of the steel beam and a connecting arm rotatably mounted on the rotating arm are connected to the shaft body.

[0010] The hoisting device for installing H-beams as described above: the sliding mechanism includes a pressure block that slides below the hoisting platform and a limiting post set on the top of the pressure block. The pressure block slides below the hoisting platform through the limiting post, and two connecting arms are rotatably connected to both sides of the pressure block.

[0011] The hoisting device for installing H-beams as described above: the elastic locking mechanism includes two sliding cavities opened on the pressure block and rounded corner blocks slidably installed in the sliding cavities, and limit springs are connected between the two sliding cavities and the two rounded corner blocks.

[0012] The hoisting device for installing H-beams as described above: the sliding mechanism includes four sliding columns set on the top of the hoisting platform and a return spring sleeved on the sliding columns, and two rounded corner blocks are slidably installed on the four sliding columns respectively.

[0013] The hoisting device for installing H-beams as described above: the sliding mechanism further includes a cylinder disposed on the top of the hoisting platform and a connecting frame connected to the cylinder push rod, the connecting frame being installed between two rounded corner blocks.

[0014] The hoisting device for installing H-beams as described above: the return spring is located below the rounded corner blocks, and the two rounded corner blocks slide on the two slide grooves on the top of the hoisting platform, respectively.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: Through the coordinated operation of the retracting mechanism and the sliding mechanism, the device can automatically, accurately, and stably engage the web plates at both ends of the steel beam during the lowering phase of the hoisting platform, significantly improving the initial stability and accuracy of the steel beam hoisting operation. After the hoisting operation reaches the designated position, it can smoothly and reliably release the fixation automatically, instantly completing the unlocking process. This comprehensively ensures the efficient flow, safe progress, and precise positioning of the hoisting task, greatly optimizing the hoisting process and making it smoother, more stable, and more accurate.

[0016] This utility model, by placing the lifting platform on the crane and the lifting arm, gives the device good mobility and allows it to be moved freely to different construction locations. Placing the lifting platform on the crane arm of the crane enables the entire lifting device to quickly reach various complex sites or different areas of lifting operation points as the crane moves. Attached Figure Description

[0017] Figure 1 A schematic diagram of the hoisting device used for installing H-beams in its non-operational state.

[0018] Figure 2 A schematic diagram of the working structure of the hoisting device used for installing H-beams.

[0019] Figure 3 A schematic diagram of the hoisting platform in the non-operational state of the hoisting device used for installing H-beams.

[0020] Figure 4 A schematic diagram of the working state of the hoisting platform in the hoisting device used for installing H-beams.

[0021] Figure 5 A schematic diagram of the folding mechanism, sliding mechanism, and elastic locking mechanism in the hoisting device used for installing H-beams.

[0022] Figure 6 A schematic diagram of the hoisting platform structure in the hoisting device used for installing H-beams.

[0023] Figure 7 A schematic diagram of the hoisting platform and pressing mechanism in the hoisting device used for installing H-beams.

[0024] Figure 8 A schematic diagram of the pressing mechanism in the hoisting device used for installing H-beams.

[0025] In the diagram: 1. Crane truck; 2. Crane boom; 3. Lifting ring; 4. Lifting platform; 5. Shaft seat; 6. Shaft body; 7. Rotating arm; 8. Connecting arm; 9. Pressure block; 10. Limiting post; 11. Sliding cavity; 12. Rounded corner block; 13. Limiting groove; 14. Slide groove; 15. Sliding post; 16. Return spring; 17. Rounded corner insert; 18. Cylinder; 19. Connecting frame; 20. Limiting spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figures 1-8 As an embodiment of the present utility model, the hoisting device for installing the H-shaped steel beam includes a hoisting vehicle 1 and a hoisting arm 2. A hoisting ring 3 and a hoisting platform 4 are connected to one side of the hoisting arm 2. The hoisting platform 4 is provided with a limit groove 13 and two sliding grooves 14. The bottom of the hoisting platform 4 is provided with a retraction mechanism for limiting the steel beam and a sliding mechanism for pulling the retraction mechanism to perform a retraction action.

[0028] The sliding mechanism includes an elastic locking mechanism and a pressing mechanism disposed above the elastic locking mechanism for squeezing the elastic locking mechanism. The elastic locking mechanism cooperates with the retracting mechanism.

[0029] In this embodiment, in the initial state, the lifting platform 4 is raised and lowered by the lifting vehicle 1 and the lifting arm 2. Then, the lifting platform 4 is moved above the steel beam and lowered. During the descent of the lifting platform 4, the sliding mechanism first comes into contact with the top of the steel beam. As the lifting platform 4 continues to fall, the sliding mechanism slides upward, thereby pulling the retracting mechanism to deflect and retract inward. The web plates at both ends of the steel beam are engaged. At this time, the elastic locking mechanism on the sliding mechanism engages with the limiting groove 13 of the lifting platform 4, fixing the position of the sliding mechanism. At this time, the lifting work of the steel beam is completed. After the steel beam is moved to a suitable position, the pressing mechanism is activated to retract the elastic locking mechanism and move the lifting platform 4 upward. At this time, the sliding mechanism loses its fixation and slides downward with gravity, driving the retracting mechanism to unfold and reset. Thus, after the lifting operation reaches the designated position, it can be automatically and reliably released and unlocked instantly, ensuring the efficient flow of the lifting task in all aspects.

[0030] As a further embodiment of this utility model, the gathering mechanism includes two bearing seats 5 disposed at the bottom of the hoisting platform 4 and a shaft body 6 disposed on the bearing seats 5. A rotating arm 7 for limiting the steel beam and a connecting arm 8 rotatably mounted on the rotating arm 7 are connected to the shaft body 6.

[0031] In this embodiment, the bottom of the hoisting platform 4 is provided with two bearing seats 5, and the rotating arm 7 is rotatably mounted on the bearing seats 5 via the shaft body 6. The rotating arm 7 is larger than the web of the steel beam for fitting and fixing.

[0032] As a further embodiment of this utility model, the sliding mechanism includes a pressure block 9 that slides below the lifting platform 4 and a limiting post 10 disposed on the top of the pressure block 9. The pressure block 9 slides below the lifting platform 4 through the limiting post 10, and two connecting arms 8 are rotatably connected to both sides of the pressure block 9.

[0033] In this embodiment, the pressure block 9 will naturally descend under gravity in the initial state. During the hoisting process, the pressure block 9 will first come into contact with the steel beam. As the hoisting platform 4 descends, the pressure block 9 will slide into the hoisting platform 4. During the movement, the pressure block 9 will drive the rotating arm 7 to deflect through the connecting arm 8.

[0034] As a further embodiment of this utility model, the elastic locking mechanism includes two sliding cavities 11 formed on the pressure block 9 and rounded corner locking blocks 12 slidably installed in the sliding cavities 11, with limit springs 20 connected between the two sliding cavities 11 and the two rounded corner locking blocks 12.

[0035] In this embodiment, rounded corner blocks 12 slide on both sliding cavities 11 of the pressure block 9. One end of the rounded corner block 12 is designed with rounded corners. The limiting spring 20 can reset the position of the rounded corner block 12. The two rounded corner blocks 12 correspond to the two limiting grooves 13 respectively. When the pressure block 9 is squeezed into the lifting platform 4, the two rounded corner blocks 12 will respectively engage with the two limiting grooves 13, thereby fixing the position of the pressure block 9.

[0036] As a further embodiment of this utility model, the sliding mechanism includes four sliding columns 15 disposed on the top of the hoisting platform 4 and a return spring 16 sleeved on the sliding columns 15, and two rounded corner blocks 17 are slidably installed on the four sliding columns 15 respectively.

[0037] In this embodiment, four sliding posts 15 are all set on the top of the hoisting platform 4, and a return spring 16 is sleeved on each of the four sliding posts 15. The rounded corner plug 17 slides between two adjacent sliding posts 15, and every two return springs 16 provide elastic reset function for one rounded corner plug 17.

[0038] As a further embodiment of this utility model, the sliding mechanism also includes a cylinder 18 disposed on the top of the hoisting platform 4 and a connecting frame 19 connected to the push rod of the cylinder 18, wherein the connecting frame 19 is installed between two rounded corner blocks 17.

[0039] In this embodiment, when the cylinder 18 is activated, the push rod of the cylinder 18 will drive the connecting frame 19 to move downward. At this time, the connecting frame 19 will drive the two rounded corner blocks 17 to move downward simultaneously and compress multiple return springs 16. At this time, the rounded corner blocks 17 will pass through the slide groove 14 and enter the limiting groove 13. At this time, the rounded corner edge of the rounded corner block 17 will fit with the rounded corner edge of the rounded corner block 12 and squeeze the rounded corner block 12 to one side, so that the rounded corner block 12 is squeezed back into the sliding cavity 11. This will retract the rounded corner blocks 12 on both sides of the pressure block 9, realize the smooth and reliable automatic release of the steel beam, and instantly complete the unlocking, ensuring the efficient flow of the hoisting task in all aspects.

[0040] As a further embodiment of this utility model, the reset spring 16 is disposed below the rounded corner plug 17, and the two rounded corner plugs 17 slide on the two sliding grooves 14 on the top of the hoisting platform 4 respectively.

[0041] In this embodiment, the slide groove 14 is used to limit the position of the rounded corner insert 17, and the slide groove 14 is connected to the limiting groove 13.

[0042] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A lifting device for mounting an H-shaped steel girder, comprising a lifting vehicle (1) and a lifting arm (2), characterized in that, The lifting arm (2) is connected to a lifting ring (3) on one side and a lifting platform (4) at the bottom of the lifting ring (3). The lifting platform (4) is provided with a limit groove (13) and two sliding grooves (14). The bottom of the lifting platform (4) is provided with a retraction mechanism for limiting the steel beam and a sliding mechanism for pulling the retraction mechanism to retract. The sliding mechanism includes an elastic locking mechanism and a pressing mechanism disposed above the elastic locking mechanism for squeezing the elastic locking mechanism. The elastic locking mechanism cooperates with the retracting mechanism.

2. The lifting device for mounting a H-shaped steel beam according to claim 1, characterized in that, The gathering mechanism includes two bearing seats (5) located at the bottom of the hoisting platform (4) and a shaft (6) located on the bearing seats (5). A rotating arm (7) for limiting the steel beam and a connecting arm (8) rotatably mounted on the rotating arm (7) are connected to the shaft (6).

3. The lifting device for mounting a H-shaped steel beam according to claim 2, characterized in that, The sliding mechanism includes a pressure block (9) that slides below the lifting platform (4) and a limiting post (10) set on the top of the pressure block (9). The pressure block (9) slides below the lifting platform (4) through the limiting post (10), and two connecting arms (8) are rotatably connected to both sides of the pressure block (9).

4. The hoisting device for mounting an H-shaped steel beam according to claim 3, characterized in that, The elastic locking mechanism includes two sliding cavities (11) opened on the pressure block (9) and rounded corner blocks (12) slidably installed in the sliding cavities (11). Limiting springs (20) are connected between the two sliding cavities (11) and the two rounded corner blocks (12).

5. The lifting device for mounting a H-shaped steel beam according to claim 4, characterized in that, The sliding mechanism includes four sliding columns (15) set on the top of the hoisting platform (4) and a return spring (16) sleeved on the sliding columns (15). Two rounded corner blocks (17) are slidably installed on the four sliding columns (15).

6. The lifting device for mounting a H-shaped steel beam according to claim 5, characterized in that, The sliding mechanism also includes a cylinder (18) disposed on the top of the hoisting platform (4) and a connecting frame (19) connected to the push rod of the cylinder (18), the connecting frame (19) being installed between two rounded corner blocks (17).

7. The lifting device for mounting a H-shaped steel beam according to claim 6, characterized in that, The reset spring (16) is located below the rounded corner plug (17), and the two rounded corner plugs (17) slide on the two slide grooves (14) on the top of the hoisting platform (4).

Images