A lifting device for transporting H-shaped steel

Abstract

The utility model discloses a kind of lifting appliance for transporting H-shaped steel, it is related to lifting appliance technical field, including the adjusting assembly of adjusting lifting appliance, further including the clamping assembly installed on adjusting assembly The clamping assembly and adjusting assembly are equipped with two, two The adjusting assembly and two clamping assemblies are symmetrically installed on lifting assembly;The clamping assembly includes input cylinder, the input cylinder one end bottom is fixedly connected with the output cylinder vertically distributed with it, the output cylinder inside is slidably connected with output piston rod.The lifting appliance for transporting H-shaped steel, input cylinder and output cylinder are communicated, and through the linkage of input piston rod and output piston rod, the function of clamping and releasing H-shaped steel is realized, through the reverse screw rod design in lifting assembly, the spacing of two clamping assemblies can be synchronously adjusted by driving rod, so that lifting appliance can adapt to H-shaped steel of different sizes, enhance the versatility and flexibility of equipment.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a lifting equipment for transferring H-beams. Background Technology

[0002] H-beam lifting tools are generally specialized lifting tools and accessories used for lifting, handling, and installing H-beams.

[0003] For example, Chinese Patent No. CN209455948U discloses a lifting device for H-beams, characterized in that it includes a lifting device comprising a crossbar, a left boom, and a right boom. The left side of the crossbar is movably connected to the upper end of the left boom, and the right side of the crossbar is movably connected to the upper end of the right boom. The left boom is provided with a left slot, and the left slot is provided with a first threaded hole, on which a first stud is fitted. The right boom is provided with a right slot, and the right slot is provided with a second threaded hole, on which a second stud is fitted. By rotating the left and right booms, the H-beam flange can be inserted into the left and right slots, and the flange can be tightened and fixed using the first and second studs, allowing for safe and stable transport of the H-beam.

[0004] Existing lifting tools for H-beams cannot accommodate H-beams of different sizes. Frequent changes of lifting tools are required when lifting different models of H-beams. The unstable movement during the lifting process can easily cause deviation or jamming, leading to the risk of the H-beams tilting or falling. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting device for transferring H-beams, so as to solve the problem in the background art that the existing H-beam lifting devices cannot adapt to H-beams of different sizes and that it is necessary to frequently change lifting devices when lifting different models of H-beams.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lifting device for transferring H-beams, comprising an adjustment assembly for adjusting the lifting device, and a clamping assembly installed on the adjustment assembly. Both the clamping assembly and the adjustment assembly are provided in twos, and the two adjustment assemblies and the two clamping assemblies are symmetrically installed on the lifting assembly. The clamping assembly includes an input cylinder, an output cylinder perpendicularly distributed to the bottom of one end of the input cylinder, an output piston rod slidably connected inside the output cylinder, the end of the output piston rod extending to the outside of the output cylinder, and a movable support plate fixedly connected to the end of the output piston rod located outside the output cylinder. An input piston rod slidably connected inside the input cylinder, the end of the input piston rod penetrating the end of the input cylinder away from the output cylinder, and a drive plate fixedly connected to the end of the input piston rod located outside the input cylinder.

[0007] Preferably, one end of the input cylinder is provided with a fixed rod symmetrically distributed with the output cylinder, the top of the fixed rod is provided with a fixed support plate, the output cylinder is connected to the inside of the input cylinder, the inside of the input cylinder and the output cylinder are filled with hydraulic oil, and a bellows is fixedly connected between the outside of the output cylinder and the output piston rod.

[0008] Preferably, the drive plate is provided with symmetrically distributed positioning plates at both ends, and a spring is fixedly connected between the drive plate and the end of the input cylinder, with the spring sleeved on the outside of the input piston rod.

[0009] Preferably, a drive rod is fixedly connected to the top of the drive plate, and a threaded hole is provided in the middle of the top of the drive rod.

[0010] Preferably, the hoisting assembly includes two fixing plates, each with a positioning rod fixedly connected to the middle of its top, and each with a clamping plate fixedly connected to its end. The end of each fixing plate away from the clamping plate is provided with a sliding groove, and the end of the positioning plate is slidably connected to the sliding groove.

[0011] Preferably, a fixed cylinder is fixedly connected between the two fixed plates, and the input cylinder is fixed inside the fixed cylinder.

[0012] Preferably, the hoisting assembly includes a hoisting plate, with two symmetrically distributed positioning grooves at both ends of the hoisting plate. The upper end of the positioning rod is fixedly connected to the inside of the positioning groove. An adjustment groove is provided in the middle of both ends of the hoisting plate. A reverse screw is rotatably connected in the middle of the hoisting plate. The outer sides of both ends of the reverse screw are threaded into the threaded holes in the middle of the top of the drive rod, and a hand-tightening handle is fixedly connected to both ends of the reverse screw.

[0013] Preferably, two symmetrically distributed connecting plates are fixedly connected to the top of the hoisting plate, and a hoisting rod is fixedly connected between the two connecting plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This lifting device for transferring H-beams features an input cylinder and an output cylinder that are interconnected. Through the linkage of the input piston rod and the output piston rod, it achieves the function of clamping and releasing H-beams. Through the reverse lead screw design in the lifting assembly, the drive rod can synchronously adjust the distance between the two clamping assemblies, enabling the lifting device to adapt to H-beams of different sizes and enhancing the versatility and flexibility of the equipment.

[0015] The cooperation between the positioning plate and the fixed plate groove provides a stable guiding effect, ensuring the smoothness of the drive plate during movement and preventing skewing. The bellows structure on the outside of the output cylinder provides a sealing and protective effect, preventing hydraulic oil leakage and the intrusion of external contaminants. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the fixing plate structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the hydraulic cylinder of this utility model; Figure 4 This is a schematic diagram of the drive board structure of this utility model; Figure 5 This is a schematic diagram of the hoisting plate structure of this utility model; Figure 6 This is a schematic diagram of the reverse lead screw structure of this utility model.

[0017] In the diagram: 1. Input cylinder; 2. Fixed rod; 3. Fixed support plate; 4. Output cylinder; 5. Output piston rod; 6. Movable support plate; 7. Input piston rod; 8. Positioning plate; 9. Drive plate; 10. Spring; 11. Drive rod; 12. Fixed plate; 13. Positioning rod; 14. Clamping plate; 15. Lifting plate; 16. Positioning groove; 17. Adjustment groove; 18. Reverse screw; 19. Connecting plate; 20. Lifting rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figures 1 to 4 The present invention provides the following technical solution: A lifting device for transferring H-beams includes an adjustment assembly for adjusting the lifting device, and a clamping assembly mounted on the adjustment assembly. Two clamping assemblies and two adjustment assemblies are provided, symmetrically mounted on the lifting assembly. An input cylinder 1 has an output cylinder 4 fixedly connected to its bottom end, perpendicularly distributed thereto. An output piston rod 5 is slidably connected inside the output cylinder 4, with its end extending to the outside of the output cylinder 4. A movable support plate 6 is fixedly connected to the end of the output piston rod 5 located outside the output cylinder 4. An input piston rod 7 is slidably connected inside the input cylinder 1, with its end penetrating the end of the input cylinder 1 away from the output cylinder 4. A drive plate 9 is fixedly connected to the end of the input piston rod 7 located outside the input cylinder 1.

[0020] One end of the input cylinder 1 is provided with a fixed rod 2 that is symmetrically distributed with the output cylinder 4. The top of the fixed rod 2 is provided with a fixed support plate 3. The output cylinder 4 is connected to the inside of the input cylinder 1. The input cylinder 1 and the output cylinder 4 are filled with hydraulic oil. A bellows is fixedly connected between the outside of the output cylinder 4 and the output piston rod 5.

[0021] Both ends of the drive plate 9 are provided with symmetrically distributed positioning plates 8. A spring 10 is fixedly connected between the drive plate 9 and the end of the input cylinder 1, and the spring 10 is sleeved on the outside of the input piston rod 7. A drive rod 11 is fixedly connected to the top of the drive plate 9, and a threaded hole is provided in the middle of the top of the drive rod 11.

[0022] When the lifting device is put into use, the operator first applies a thrust toward the H-beam to the drive plate 9. After being thrust, the drive plate 9 begins to move along the axial direction of the input cylinder 1, causing the input piston rod 7, which is fixedly connected to its end, to slide inside the input cylinder 1. At the same time, symmetrically distributed positioning plates 8 are fixedly connected to both ends of the drive plate 9. The positioning plates 8 slide in the groove of the fixed plate 12 as the drive plate 9 moves, playing a guiding and stabilizing role. In the initial stage of the movement of the drive plate 9, if the clamping assembly has not yet contacted the H-beam, the drive plate 9 will directly drive the entire adjustment assembly to move closer to the H-beam.

[0023] When the clamping assembly is fully in contact with the surface of the H-beam, the drive plate 9 is still subjected to continuous thrust. At this time, the drive plate 9 will continue to move toward the input cylinder 1. This movement causes the spring 10 between the drive plate 9 and the end of the input cylinder 1 to be compressed. The spring 10 is sleeved on the outside of the input piston rod 7 and stores elastic potential energy during compression. At the same time, the movement of the drive plate 9 forces the input piston rod 7 to slide further into the input cylinder 1, thereby squeezing the hydraulic oil in the input cylinder 1. Since the input cylinder 1 and the output cylinder 4 are connected and filled with hydraulic oil, the squeezed hydraulic oil flows into the output cylinder 4 through the connecting channel.

[0024] Inside the output cylinder 4, the flowing hydraulic oil generates pressure, pushing the output piston rod 5 to slide within the output cylinder 4. The end of the output piston rod 5 extends to the outside of the output cylinder 4 and is fixedly connected to a movable support plate 6. Therefore, the sliding of the output piston rod 5 causes the movable support plate 6 to move away from the input cylinder 1. At the same time, the fixed rod 2 is fixedly connected to the top of one end of the input cylinder 1. The top of the fixed rod 2 is provided with a fixed support plate 3. The position of the fixed support plate 3 is relatively fixed. As the movable support plate 6 moves, the distance between the fixed support plate 3 and the movable support plate 6 gradually increases until they abut against the inner surface of the H-beam, thereby achieving the clamping and fixing of the H-beam. The bellows fixedly connected between the outside of the output cylinder 4 and the output piston rod 5 deforms with the extension and retraction of the output piston rod 5, playing a sealing and protective role.

[0025] When it is necessary to release the H-beam, the operator releases the pushing force on the drive plate 9. At this time, the compressed spring 10 releases its elastic potential energy, pushing the drive plate 9 to slide away from the input cylinder 1. The drive plate 9 drives the input piston rod 7 to slide in the opposite direction inside the input cylinder 1. The movement of the input piston rod 7 increases the internal volume of the input cylinder 1, forming a negative pressure, thereby drawing the hydraulic oil inside the output cylinder 4 back into the input cylinder 1. The backflow of hydraulic oil causes the internal pressure of the output cylinder 4 to decrease. The output piston rod 5 slides back into the output cylinder 4 under the action of external force or its own weight, driving the movable support plate 6 to move towards the input cylinder 1, realizing the reset of the movable support plate 6. The distance between the fixed support plate 3 and the movable support plate 6 decreases, and the clamping assembly separates from the H-beam.

[0026] Example 2: Based on Example 1, please refer to... Figures 3 to 6 The following structure was also disclosed: The hoisting assembly includes two fixed plates 12, with a positioning rod 13 fixedly connected to the middle of the top of each fixed plate 12, and a clamping plate 14 fixedly connected to the ends of each fixed plate 12. A groove is provided at the end of the fixed plate 12 away from the clamping plate 14, and the end of the positioning plate 8 is slidably connected in the groove. A fixed cylinder is fixedly connected between the two fixed plates 12, and the input cylinder 1 is fixed inside the fixed cylinder.

[0027] The hoisting assembly includes a hoisting plate 15, with two symmetrically distributed positioning slots 16 at both ends of the hoisting plate 15. The upper end of the positioning rod 13 is fixedly connected to the inside of the positioning slot 16. An adjustment slot 17 is provided in the middle of both ends of the hoisting plate 15. A reverse screw 18 is rotatably connected in the middle of the hoisting plate 15. The outer ends of the reverse screw 18 are threaded into the threaded holes in the middle of the top of the drive rod 11, and a hand-tightening handle is fixedly connected to both ends of the reverse screw 18. Two symmetrically distributed connecting plates 19 are fixedly connected to the top of the hoisting plate 15, and a hoisting rod 20 is fixedly connected between the two connecting plates 19.

[0028] The hoisting assembly includes two fixed plates 12, and a positioning rod 13 is fixedly connected to the middle of the top of each fixed plate 12. The upper end of the positioning rod 13 is fixedly connected to the inside of the positioning groove 16 at both ends of the hoisting plate 15, thereby stably installing the fixed plate 12 on the hoisting plate 15. A clamping plate 14 is fixedly connected to the end of the fixed plate 12 for auxiliary positioning. A fixed cylinder is fixedly connected between the two fixed plates 12, and the input cylinder 1 is fixed inside the fixed cylinder to ensure that the input cylinder 1 remains stable during operation.

[0029] A reverse screw 18 is rotatably connected in the middle of the lifting plate 15. The outer threads of both ends of the reverse screw 18 are connected to the threaded holes in the middle of the top of the drive rod 11. The drive rod 11 is fixedly connected to the top of the drive plate 9. Therefore, when the operator turns the handle, the reverse screw 18 rotates accordingly. Since the threads at both ends of the reverse screw 18 are in opposite directions, rotating the reverse screw 18 will drive the two drive rods 11 to move synchronously towards or away from each other along the adjustment groove 17 of the lifting plate 15. The adjustment groove 17 provides guidance and limit for the movement of the drive rods 11. The movement of the drive rods 11 drives the drive plate 9 and the entire clamping assembly to move, thereby adjusting the distance between the two clamping assemblies to accommodate H-beams of different sizes.

[0030] After adjustment, when the drive plate 9 is pushed, the fixed support plate 3 and the movable support plate 6 clamp the H-beam through hydraulic transmission. The top of the lifting plate 15 is fixedly connected to two symmetrically distributed connecting plates 19, and a lifting rod 20 is fixedly connected between the two connecting plates 19. The lifting rod 20 is used to connect the lifting equipment to realize the transfer of the H-beam. The positioning plate 8 slides in the groove of the fixed plate 12 to ensure the stability of the movement of the drive plate 9.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting device for transferring H-beams, comprising an adjustment assembly for adjusting the lifting device, and a clamping assembly mounted on the adjustment assembly. Two clamping assemblies and two adjustment assemblies are provided, and the two adjustment assemblies and two clamping assemblies are symmetrically mounted on the lifting assembly. Its features are: The clamping assembly includes an input cylinder (1), with an output cylinder (4) fixedly connected to the bottom of one end of the input cylinder (1) and distributed perpendicularly thereto. An output piston rod (5) is slidably connected inside the output cylinder (4), with the end of the output piston rod (5) extending to the outside of the output cylinder (4). A movable support plate (6) is fixedly connected to the end of the output piston rod (5) located outside the output cylinder (4). An input piston rod (7) is slidably connected inside the input cylinder (1), with the end of the input piston rod (7) penetrating the end of the input cylinder (1) away from the output cylinder (4). A drive plate (9) is fixedly connected to the end of the input piston rod (7) located outside the input cylinder (1).

2. The lifting device for transferring H-beams according to claim 1, characterized in that: The clamping assembly includes an input cylinder (1), one end of which is provided with a fixed rod (2) symmetrically distributed with the output cylinder (4), the top of the fixed rod (2) is provided with a fixed support plate (3), the output cylinder (4) is connected to the inside of the input cylinder (1), the input cylinder (1) and the output cylinder (4) are filled with hydraulic oil, and a bellows is fixedly connected between the outside of the output cylinder (4) and the output piston rod (5).

3. A lifting device for transferring H-beams according to claim 2, characterized in that: The drive plate (9) has symmetrically distributed positioning plates (8) at both ends. A spring (10) is fixedly connected between the drive plate (9) and the end of the input cylinder (1), and the spring (10) is sleeved on the outside of the input piston rod (7).

4. A lifting device for transferring H-beams according to claim 3, characterized in that: The top of the drive plate (9) is fixedly connected to a drive rod (11), and the top of the drive rod (11) is provided with a threaded hole.

5. A lifting device for transferring H-beams according to claim 4, characterized in that: The hoisting assembly includes two fixed plates (12), and a positioning rod (13) is fixedly connected to the middle of the top of each of the two fixed plates (12). A clamping plate (14) is fixedly connected to the end of each of the two fixed plates (12). A groove is provided at the end of the fixed plate (12) away from the clamping plate (14), and the end of the positioning plate (8) is slidably connected in the groove.

6. A lifting device for transferring H-beams according to claim 5, characterized in that: A fixed cylinder is fixedly connected between the two fixed plates (12), and the input cylinder (1) is fixed inside the fixed cylinder.

7. A lifting device for transferring H-beams according to claim 6, characterized in that: The hoisting assembly includes a hoisting plate (15), with two symmetrically distributed positioning slots (16) at both ends of the hoisting plate (15). The upper end of the positioning rod (13) is fixedly connected to the inside of the positioning slot (16). An adjustment slot (17) is provided in the middle of both ends of the hoisting plate (15). A reverse screw (18) is rotatably connected in the middle of the hoisting plate (15). The outer sides of both ends of the reverse screw (18) are threaded into the threaded hole in the middle of the top of the drive rod (11), and both ends of the reverse screw (18) are fixedly connected to a hand-tightening handle.

8. A lifting device for transferring H-beams according to claim 7, characterized in that: The top of the hoisting plate (15) is fixedly connected to two symmetrically distributed connecting plates (19), and a hoisting rod (20) is fixedly connected between the two connecting plates (19).

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