Lifting appliance for balanced lifting of H-shaped steel
By designing lifting tools that adapt to H-beams of different thicknesses and utilizing adjustable support plates and tightening bolts, the problems of loose wire rope binding and wear in traditional hoisting have been solved, achieving high efficiency and stability in H-beam hoisting.
Patent Information
- Application Number
- CN202423231874.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional methods of hoisting H-beams suffer from problems such as insecure wire rope binding, wear and tear, and insufficient adaptability of existing lifting tools, leading to inconvenience and instability in hoisting.
A lifting device comprising a symmetrical lifting body was designed. Through an adjustable support plate and a clamping bolt structure, it can adapt to the lifting of H-beams of different thicknesses. The combination of pull ropes and lifting rods improves stability and safety.
It enables convenient hoisting of H-beams of different thicknesses, improves hoisting efficiency and stability, avoids the risk of loose wire rope binding and wear, and enhances hoisting safety.
Smart Images
Figure CN223646145U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hoisting equipment, and specifically relates to a hoisting tool for balancing the hoisting of H-beams. Background Technology
[0002] H-beams are a commonly used raw material in electromechanical installation engineering and frequently require hoisting and transportation. Traditionally, H-beam hoisting often involves binding them with wire ropes. This requires the use of shackles and slings, binding the H-beams at both ends. However, this often results in risks such as insecure wire rope bindings and friction between the wire ropes and the edge flanges of the H-beams, leading to wear and tear. Furthermore, since different types of H-beams have varying thicknesses, existing hoisting tools are only suitable for hoisting one type or a limited thickness of H-beams, making their use very inconvenient. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model aims to provide a lifting device for balancing the lifting of H-beams. This device is very convenient to use and can be adapted to the lifting of H-beams of different thicknesses, which can significantly improve the lifting efficiency and lifting stability.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A lifting device for balancing the lifting of H-beams includes two lifting device bodies symmetrically fixed on both sides of the horizontal section of the H-beam. Both lifting device bodies are connected to a lifting hook above their midpoint via corresponding pull ropes. Each lifting device body includes a lifting section and a connecting section. The lifting section is horizontally positioned, with one end vertically fixed to the connecting section. A support plate is horizontally positioned below the lifting section, and its end is adjustable and mounted on the connecting section. The end of the horizontal section of the H-beam is positioned between the lifting section and the support plate and supported on the support plate. A clamping bolt is vertically and downwardly installed through the lifting section near the connecting section, with its end abutting against the upper surface of the H-beam. A lifting rod is provided at the end of the lifting section away from the connecting section. The middle of the lifting rod is rotatably connected to the lifting section, and its lower end abuts against the H-beam. The upper end of the lifting rod is inclined towards the connecting section and has a lifting hole for fixing the pull ropes.
[0006] Preferably, the tray includes a supporting part and a U-shaped insertion part, the supporting part being fixedly connected to the other end of the U-shaped opening of the insertion part; the connecting part has multiple horizontal grooves in the vertical direction, and the U-shaped opening of the insertion part has multiple locking grooves in the vertical direction that cooperate with the horizontal grooves.
[0007] Preferably, the transverse groove and the snap-fit groove are evenly spaced.
[0008] Preferably, the length of the plug portion is greater than the width of the connecting portion, and the two ends of the U-shaped opening of the plug portion are symmetrically provided with through holes, and a limiting bolt is horizontally inserted between the through holes, with a locking nut at the end of the limiting bolt.
[0009] Preferably, a limiting plate is fixedly provided at the lower end of the connecting part.
[0010] Preferably, a tension spring is obliquely fixed between the upper end of the boom and the lifting part.
[0011] Preferably, the lifting part has a vertical hole, and a fixing nut that cooperates with the clamping bolt is fixed in the vertical hole. The clamping bolt is threaded in the fixing nut and extends downward through the vertical hole.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model can adjust the distance between the pallet and the lifting part by changing the insertion position of the snap-fit groove in the vertical direction of the connection part, thereby enabling the device to be used for lifting H-beams of different thicknesses.
[0014] 2. This application uses a limiting bolt and a locking nut that are fitted into the through hole in the U-shaped opening of the plug-in part to lock the position of the plug-in part on the connecting part, preventing the plug-in part from falling out of the horizontal groove on the connecting part after it is installed in place, thereby significantly improving the safety of hoisting.
[0015] 3. After the main body of the lifting device is initially secured on the H-beam, in order to prevent the main body of the lifting device from shifting during the tensioning and lifting process, the main body of the lifting device can be initially fixed with tightening bolts. This can effectively improve the stability of the lifting and prevent the main body of the lifting device from shifting.
[0016] 4. During lifting, the rope is pulled at an angle to the upper end of the lifting rod. Because the middle part of the lifting rod is rotatably connected to the lifting part, the lifting rod can rotate and swing and stretch the tension spring. At this time, the lower end of the lifting rod is firmly pressed against the upper surface of the H-beam, further improving the stability of the lifting. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the hoisting process of this utility model;
[0018] Figure 2 This is a schematic diagram of the lifting device of this utility model;
[0019] Figure 3 This is a structural diagram of the connecting part of this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the support part and the insertion part of this utility model;
[0021] Figure 5 This is a side view of the tray of this utility model. Detailed Implementation
[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of application of this utility model.
[0023] like Figure 1-5 As shown, this utility model proposes a lifting device for balanced hoisting of H-beams, comprising lifting device bodies symmetrically fixed on both sides of the horizontal portion of the H-beam. During hoisting, two symmetrically arranged lifting device bodies form a group, with one group positioned at each end along the length of the H-beam 8. Each group of two lifting device bodies is diagonally connected to a lifting hook above the middle of the two bodies via corresponding pull ropes 7, thereby achieving balanced hoisting of the H-beam 8.
[0024] Specifically, the lifting device includes a lifting part 1 and a connecting part 3. The lifting part 1 is horizontally positioned at the top, and its outer end is vertically fixed to the connecting part 3. A support plate 4 is horizontally positioned below the lifting part 1, and its outer end is vertically adjustable and mounted on the connecting part 3. Specifically, the support plate 4 includes a horizontally positioned supporting part 41 and a U-shaped insertion part 42. The supporting part 41 is fixed to the other end of the U-shaped opening of the insertion part 42. The connecting part 3 has multiple horizontal grooves 31 evenly spaced vertically, and the U-shaped opening of the insertion part 42 has multiple vertically positioned locking grooves 421 that mate with the horizontal grooves 31. The horizontal end of the steel section is positioned between the lifting part 1 and the support plate 4 and is supported on the support plate 4.
[0025] This application allows for adjustment of the distance between the pallet 4 and the lifting part 1 by changing the insertion position of the snap-fit groove 421 in the vertical direction of the connecting part 3 and the different transverse grooves 31, thereby enabling the device to be used for lifting H-beams 8 of different thicknesses.
[0026] In addition, the horizontal length of the plug part 42 is greater than the width of the connecting part 3, so that the plug part 42 can extend outward by one end after being inserted into the connecting part 3. The two ends of the U-shaped opening of the plug part 42 are horizontally symmetrically provided with through holes, and a limiting bolt 43 is horizontally inserted between the through holes. The end of the limiting bolt 43 is provided with a locking nut 431.
[0027] This application uses a limit bolt 43 to engage with a locking nut 431 and pass through a hole in the U-shaped opening of the plug part 42. This locks the position of the plug part 42 on the connecting part 3, preventing the plug part 42 from falling out of the transverse groove 31 on the connecting part 3 after it is installed in place, thereby significantly improving the safety of hoisting.
[0028] In addition, a limiting plate 32 is fixedly provided at the lower end of the connecting part 3, which can limit the installation position of the support plate 4 on the connecting part 3.
[0029] A clamping bolt 2 is vertically installed downward through the lifting part 1 near the connecting part 3, with the end of the clamping bolt 2 abutting against the upper surface of the steel section. In specific implementation, a vertical hole 10 can be vertically opened on the lifting part 1, and a fixing nut 11 that mates with the clamping bolt 2 is fixed in the vertical hole 10. The clamping bolt 2 is threaded into the fixing nut 11 and extends downward through the vertical hole 10.
[0030] After the main body of the lifting device is initially secured in place on the H-beam 8, in order to prevent the main body of the lifting device from shifting during the lifting process by tensioning the rope 7, the main body of the lifting device can be initially fixed using the tightening bolts 2. This can effectively improve the stability of the lifting and prevent the problem of displacement of the main body of the lifting device.
[0031] A lifting rod 5 is provided at the end of the lifting part 1 away from the connecting part 3. The middle part of the lifting rod 5 is rotatably connected to the lifting part 1. The lower end of the lifting rod 5 abuts against the structural steel. The upper end of the lifting rod 5 is inclined towards the connecting part 3 and is provided with a lifting hole 50 for fixing the pull rope 7. A tension spring 6 is inclinedly fixed between the upper end of the lifting rod 5 and the lifting part 1. Under the elastic force of the tension spring 6, the lifting rod 5 can automatically return to its original position after the lifting is completed.
[0032] During lifting, the rope 7 pulls the upper end of the lifting rod 5 at an angle. Since the middle part of the lifting rod 5 is rotatably connected to the lifting part 1, the lifting rod 5 can rotate and swing and stretch the tension spring 6. At this time, the lower end of the lifting rod 5 is firmly pressed against the upper surface of the H-beam 8, which further improves the stability of the lifting.
[0033] When using this utility model, two lifting bodies are symmetrically arranged at both ends of the length direction of the H-beam 8. The installation position of the support plate 4 in the vertical direction of the connecting part 3 is adjusted according to the thickness of the H-beam 8, thereby adjusting the distance between the support plate 4 and the lifting part 1 to adapt to the lifting of different models of H-beam 8. After the lifting body is clamped on both sides of the horizontal part above the H-beam 8, it is initially fixed by the tightening bolts 2 to prevent displacement. Then, the upper end of the lifting rod 5 is pulled by the pull rope 7 to lift, while the lower end of the lifting rod 5 is firmly pressed against the upper surface of the H-beam 8, which significantly improves the stability of the lifting.
[0034] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A lifting device for balancing the lifting of H-beams, comprising lifting device bodies symmetrically fixed on both sides of the horizontal portion of the H-beam, wherein both lifting device bodies are connected to a lifting hook above their middle portion via corresponding pull ropes, characterized in that: The lifting device includes a lifting section and a connecting section. The lifting section is horizontally positioned, with one end of the lifting section vertically fixed to the connecting section. A support plate is horizontally positioned below the lifting section, and the end of the support plate is adjustable and mounted on the connecting section. The end of the horizontal section of the structural steel is positioned between the lifting section and the support plate and supported on the support plate. A clamping bolt is vertically and downwardly installed on the lifting section near the connecting section, with the end of the clamping bolt abutting against the upper surface of the structural steel. A lifting rod is provided at the end of the lifting section away from the connecting section. The middle of the lifting rod is rotatably connected to the lifting section, and the lower end of the lifting rod abuts against the structural steel. The upper end of the lifting rod is inclined towards the connecting section and has a lifting hole for fixing the pull rope.
2. The lifting device for balancing the lifting of H-beams according to claim 1, characterized in that: The tray includes a support portion and a U-shaped insertion portion, with the support portion fixedly connected to the other end of the U-shaped opening of the insertion portion; the connection portion has multiple horizontal grooves in the vertical direction, and the U-shaped opening of the insertion portion has multiple locking grooves in the vertical direction that cooperate with the horizontal grooves.
3. The lifting device for balancing the lifting of H-beams according to claim 2, characterized in that: The horizontal grooves and snap-fit grooves are all spaced at equal intervals.
4. The lifting device for balancing the lifting of H-beams according to claim 2, characterized in that: The length of the plug part is greater than the width of the connecting part. The two ends of the U-shaped opening of the plug part are symmetrically provided with through holes. A limiting bolt is horizontally inserted between the through holes, and a locking nut is provided at the end of the limiting bolt.
5. The lifting device for balancing the lifting of H-beams according to claim 1, characterized in that: A limiting plate is fixedly provided at the lower end of the connecting part.
6. The lifting device for balancing the lifting of H-beams according to claim 1, characterized in that: A tension spring is fixedly installed at an angle between the upper end of the boom and the lifting part.
7. The lifting device for balancing the lifting of H-beams according to claim 1, characterized in that: The lifting part has a vertical hole, and a fixing nut that cooperates with the tightening bolt is fixed in the vertical hole. The tightening bolt is threaded in the fixing nut and extends downward through the vertical hole.