Lifting device

By using a rotating support arm and C-shaped clamps, combined with threaded fit and rubber pads, the problem of unstable fixing in traditional lifting devices is solved, enabling rapid adaptation and firm fixing of I-beams, thus improving safety and stability.

CN224132644UActive Publication Date: 2026-04-17HANGZHOU LONGFANG ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU LONGFANG ENG TECH CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional lifting devices are not securely fixed when transporting I-beams, posing a risk of slippage and detachment, which can lead to safety accidents and equipment failures.

Method used

A lifting device was designed, which uses a rotatable support arm and a C-shaped clamp, combined with threaded fit and rubber pads, to achieve multi-directional clamping and fixation. The support legs and hydraulic cylinder enhance stability.

Benefits of technology

It enables rapid adaptation and secure fixing of I-beams, improving safety and stability and reducing operational risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lifting device which comprises a vehicle body and a mounting plate, a fixing mechanism is arranged on the outer wall of the top of the mounting plate and comprises a plurality of supporting arms arranged on the outer wall of the top of the mounting plate, a first oil cylinder is arranged on the outer wall of one side of each supporting arm, and one end of each first oil cylinder is arranged on the mounting plate; a rotatable C-shaped clamping piece is arranged at one end of the supporting arm, a threaded hole is formed in the C-shaped clamping piece, a threaded rod is arranged in the threaded hole in a threaded fit mode, a rotating rod is inserted into one end of the threaded rod, and a rubber pad is arranged at the other end of the threaded rod. By arranging the fixing mechanism, rapid adjustment and adaptation can be carried out according to different sizes and shapes of I-shaped steel, the I-shaped steel can be fixed to the lifting platform through multi-direction clamping, fixing operation is easy, convenient and rapid, operation efficiency is improved, safety of materials in the lifting process is enhanced, and the supporting legs are arranged, so that the lifting platform is convenient to use. And the stability of the vehicle body is enhanced, and the stability and safety of the lifting device are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and specifically to a lifting device. Background Technology

[0002] Lifting devices are widely used in mining, construction, port loading and unloading, warehouse cargo transfer and other scenarios. They play an important role in lifting materials or equipment from low to high positions. With the acceleration of industrial automation and the expansion of operation scale, the requirements for the safety, stability and transportation accuracy of lifting devices are becoming more and more stringent.

[0003] Traditional lifting devices for transporting long, narrow materials such as I-beams often rely on binding, clamping, or pressure plates for securing them. Binding depends on manual labor, making it difficult to control the tightness, and materials are prone to slipping or falling off under external forces during lifting. Clamping and pressure plate fixation are difficult to adapt to the diverse specifications of I-beams, resulting in insecure fixation and the risk of displacement. Material displacement not only damages the material itself but may also cause equipment malfunctions and safety accidents. Therefore, there is an urgent need to design a lifting device to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a lifting device to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting device includes a vehicle body and a mounting plate. A fixing mechanism is provided on the top outer wall of the mounting plate. The fixing mechanism includes a plurality of support arms provided on the top outer wall of the mounting plate. The support arms rotate on the mounting plate. A hydraulic cylinder is provided on one side outer wall of the support arm. One end of the hydraulic cylinder is provided on the mounting plate.

[0007] One end of the support arm is provided with a rotatable C-shaped clamp, the C-shaped clamp has a threaded hole, a screw is threaded into the threaded hole, a rotating rod is inserted into one end of the screw, and a rubber pad is provided at the other end of the screw.

[0008] In a preferred embodiment of this utility model, a crossbar is provided at the top of one end of the vehicle body, two rotating connecting seats are provided on one side of the crossbar, slide rails are provided on both sides of the top of the vehicle body, sliding wheels are provided in the slide rails, and an axle is provided between the two sliding wheels.

[0009] In a preferred embodiment of this utility model, a lifting mechanism is provided above the vehicle body. The lifting mechanism includes several connecting rods 1 and 2, which are connected in the middle by bolts. One end of each of the two connecting rods 1 is located on both sides of the shaft, and one end of each of the two connecting rods 2 is located on the crossbar through a rotating connecting seat.

[0010] In a preferred embodiment of this utility model, a connecting rod is provided between the first connecting rods, and a connecting rod is also provided between the two parallel second connecting rods. A mounting seat is provided on the two connecting rods, and a second hydraulic cylinder is provided on the mounting seat.

[0011] In a preferred embodiment of this utility model, several wheels are provided on both sides of the vehicle body, and support legs are provided at both ends of the vehicle body. Support cylinders are provided on the outer wall of the bottom of the support legs, and a rubber base is provided at one end of the support cylinder.

[0012] In a preferred embodiment of this utility model, the rotating connecting seat is respectively provided on the top surface and bottom surface of the mounting plate, the support arm is fixed to the top outer wall of the mounting plate through the rotating connecting seat, and one end of the oil cylinder is fixed to the top outer wall of the mounting plate through the rotating connecting seat.

[0013] One end of each of the connecting rods is rotatably fixed to the outer wall of the bottom of the mounting plate via a rotating connecting seat.

[0014] In a preferred embodiment of this utility model, an I-beam is inserted into the C-shaped clip, and the I-beam is fixed inside the C-shaped clip by a screw.

[0015] In the above technical solution, the lifting device provided by this utility model has the following beneficial effects:

[0016] (1) By setting a fixing mechanism, it can be quickly adjusted and adapted according to different sizes and shapes of I-beams. Through multi-directional clamping, anti-slip rubber pads and other structures, I-beams can be firmly fixed on the lifting platform. The fixing operation is simple and quick, which greatly improves the work efficiency and enhances the safety of materials when lifting.

[0017] (2) By setting up support legs, when lifting the I-beam, the stability of the vehicle body is enhanced by the support cylinders and rubber pads around the vehicle body, which greatly increases the stability and safety of the lifting device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a perspective view of the lifting device structure provided in an embodiment of the present utility model.

[0020] Figure 2 This is a side perspective view of the lifting device structure provided in an embodiment of the present invention.

[0021] Figure 3 This is a perspective view of the fixing mechanism structure provided in an embodiment of the lifting device of this utility model.

[0022] Figure 4 This invention provides an embodiment of a lifting device. Figure 3 Enlarged view of a portion of the structure.

[0023] Figure 5 This is a partial view of the slide rail structure provided in an embodiment of the lifting device of this utility model.

[0024] 1. Car body; 11. Crossbar; 12. Rotary connecting seat; 2. Lifting mechanism; 21. Connecting rod one; 22. Connecting rod two; 23. Connecting rod; 24. Mounting seat; 3. Fixing mechanism; 31. Support arm; 32. C-type clamp; 33. Hydraulic cylinder one; 34. Screw; 35. Rotating rod; 36. Rubber pad; 37. Threaded hole; 4. Mounting plate; 5. Support leg; 51. Support cylinder; 52. Rubber base pad; 6. Wheel; 7. Slide rail; 71. Sliding wheel; 72. Shaft; 8. Hydraulic cylinder two; 9. I-beam. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown in the figure, the lifting device provided in this embodiment of the utility model includes a vehicle body 1 and a mounting plate 4. A fixing mechanism 3 is provided on the top outer wall of the mounting plate 4. The fixing mechanism 3 includes a plurality of support arms 31 provided on the top outer wall of the mounting plate 4. The support arms 31 rotate on the mounting plate 4. A hydraulic cylinder 33 is provided on one side outer wall of the support arm 31. One end of the hydraulic cylinder 33 is provided on the mounting plate 4. A rotatable C-shaped clamp 32 is provided at one end of the support arm 31. A threaded hole 37 is provided on the C-shaped clamp 32. A screw 34 is threaded in the threaded hole 37. A rotating rod 35 is inserted into one end of the screw 34. A rubber pad 36 is provided at the other end of the screw 34.

[0027] In this embodiment, a fixing mechanism 3 is provided on the top outer wall of the mounting plate 4. The fixing mechanism 3 includes a plurality of support arms 31 provided on the top outer wall of the mounting plate 4. The support arms 31 are rotatably mounted on the top outer wall of the mounting plate 4. The rotation design allows the support arms 31 to flexibly adjust their angles according to actual needs, thereby adapting to different types of I-beams 9. A hydraulic cylinder 33 is provided on one side outer wall of the support arm 31. One end of the hydraulic cylinder 33 is provided on the mounting plate 4. The hydraulic cylinder 33 is driven by hydraulic power to provide stable and controllable support force and rotational power to the support arm 31, ensuring the stability and reliability of the support arm 31 during operation.

[0028] Specifically, one end of the support arm 31 is provided with a rotatable C-shaped clamp 32. The C-shaped clamp 32 can be adapted to different types of I-beams 9 by rotating. The C-shaped clamp 32 has a threaded hole 37, and a screw 34 is threaded into the threaded hole 37. One end of the screw 34 is inserted with a rotating rod 35. The screw 34 can be easily driven to rotate by rotating the rotating rod 35, thereby making the screw 34 move up and down. The other end of the screw 34 is provided with a rubber pad 36. The rubber pad 36 has good elasticity and anti-slip properties. When fastening the workpiece, it can not only avoid damage to the surface of the workpiece, but also provide greater friction to ensure that the workpiece is firmly fixed in the C-shaped clamp 32.

[0029] In this embodiment, a crossbar 11 is provided at the top of one end of the vehicle body 1, and two rotating connecting seats 12 are provided on one side of the crossbar 11. The rotating connecting seats 12 provide basic support for the connection and rotation of subsequent components. Slide rails 7 are provided on both sides of the top of the vehicle body 1, and sliding wheels 71 are provided in the slide rails 7. A shaft 72 is provided between the two sliding wheels 71, so that the components installed on the shaft 72 can slide smoothly on the top of the vehicle body 1, thereby making the lifting mechanism 2 more stable when lifting.

[0030] In this embodiment, a lifting mechanism 2 is provided above the vehicle body 1. The lifting mechanism 2 includes several connecting rods 21 and 22. The connecting rods 21 and 22 are connected by bolts to form a stable linkage structure. One end of the two connecting rods 21 is located on both sides of the shaft 72, and one end of the two connecting rods 22 is located on the crossbar 11 through a rotating connecting seat 12. This connection method allows the lifting mechanism 2 to adjust its height by adjusting the angle between the connecting rods 21 and 22, using the crossbar 11 and shaft 72 as fulcrums.

[0031] In this embodiment, a connecting rod 23 is provided between the first connecting rod 21, and a connecting rod 23 is also provided between the two parallel second connecting rods 22. These connecting rods 23 play a role in strengthening the structural stability and transmitting motion, so that the first connecting rod 21 and the second connecting rod 22 can work together. The two connecting rods 23 are provided with mounting seats 24, and the mounting seats 24 are provided with hydraulic cylinders 8. The hydraulic cylinders 8 are driven by hydraulic power and can provide strong lifting power for the lifting mechanism 2, ensuring the smoothness and efficiency of the lifting process.

[0032] In this embodiment, several wheels 6 are provided on both sides of the vehicle body 1. The wheels 6 provide the vehicle body 1 with the ability to move, so that the entire equipment can move freely between different work sites. Support legs 5 are provided at both ends of the vehicle body 1. Support cylinders 51 are provided on the outer wall of the bottom of the support legs 5. A rubber pad 52 is provided at one end of the support cylinder 51. When the equipment reaches the working position, by controlling the extension and retraction of the support cylinder 51, the support legs 5 can be extended downward to support the ground. The rubber pad 52 can increase the friction with the ground, ensure the stability of the equipment during operation, and reduce damage to the ground.

[0033] In this embodiment, the rotating connecting seat 12 is respectively provided on the top surface and bottom surface of the mounting plate 4. The rotating connecting seat 12 plays a key connecting role in the whole structure. The support arm 31 is fixed to the top outer wall of the mounting plate 4 through the rotating connecting seat 12, thereby realizing the rotational movement of the support arm 31. One end of the hydraulic cylinder 33 is fixed to the top outer wall of the mounting plate 4 through the rotating connecting seat 12, ensuring a stable connection and flexible movement between the hydraulic cylinder 33 and the mounting plate 4.

[0034] Specifically, one end of connecting rod 21 and one end of connecting rod 22 are rotatably fixed to the bottom outer wall of mounting plate 4 through rotating connecting seat 12, so that the lifting mechanism 2 and mounting plate 4 form a stable and movable connection relationship.

[0035] In this embodiment, an I-beam 9 is inserted into the C-type clip 32, and the I-beam 9 is fixed in the C-type clip 32 by a screw 34. This fixing method is simple and reliable, and is suitable for fixing various types of I-beams 9. It can ensure the stability and safety of the I-beam 9 during transportation and installation.

[0036] Working steps: 1. Adjust the tilt of the support arm 31 by using the hydraulic cylinder 33 to accommodate I-shaped steel 9 of different specifications. Then, the C-shaped clamp 32 is clamped onto both ends of the edge of the I-shaped steel 9. The screw 34 moves downward under the action of the threaded engagement by rotating the rotating rod 35, and then the I-shaped steel 9 is squeezed and fixed. Then, the wheel 6 is used to move it to the required place.

[0037] Second, before lifting the I-beam 9, the support leg 5 needs to be lowered so that the rubber base pad 52 is in close contact with the ground to enhance the stability of the vehicle body 1. Then, the I-beam 9 is lifted to the required height through the cooperation of the hydraulic cylinder 28 and the lifting mechanism 2.

[0038] 3. When it is necessary to disassemble the I-shaped steel 9, the screw 34 is raised by rotating the rod 35, at which time the screw 34 is released from the fixation of the I-shaped steel 9. Then, the C-shaped clamp 32 is released from the I-shaped steel 9 by rotating the support arm 31, thus completing the disassembly of the I-shaped steel 9.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting device comprising a vehicle body (1) and a mounting plate (4), characterized in that, A fixing mechanism (3) is provided on the top outer wall of the mounting plate (4). The fixing mechanism (3) includes a plurality of support arms (31) provided on the top outer wall of the mounting plate (4). The support arms (31) rotate on the mounting plate (4). A hydraulic cylinder (33) is provided on one side outer wall of the support arm (31). One end of the hydraulic cylinder (33) is provided on the mounting plate (4). One end of the support arm (31) is provided with a rotatable C-shaped clip (32), the C-shaped clip (32) is provided with a threaded hole (37), a screw (34) is threaded in the threaded hole (37), a rotating rod (35) is inserted into one end of the screw (34), and a rubber pad (36) is provided at the other end of the screw (34).

2. A lifting device according to claim 1, characterised in that A crossbar (11) is provided at the top of one end of the vehicle body (1). Two rotating connecting seats (12) are provided on one side of the crossbar (11). Slide rails (7) are provided on both sides of the top of the vehicle body (1). Sliding wheels (71) are provided in the slide rails (7). A shaft (72) is provided between the two sliding wheels (71).

3. A lifting device according to claim 2, characterised in that A lifting mechanism (2) is provided above the vehicle body (1). The lifting mechanism (2) includes several connecting rods 1 (21) and connecting rods 2 (22). The connecting rods 1 (21) and connecting rods 2 (22) are connected by bolts in the middle. One end of the two connecting rods 1 (21) is set on both sides of the shaft (72), and one end of the two connecting rods 2 (22) is set on the crossbar (11) through a rotating connecting seat (12).

4. A lifting device according to claim 3, characterised in that A connecting rod (23) is provided between the first connecting rod (21), and a connecting rod (23) is also provided between the two parallel second connecting rods (22). A mounting seat (24) is provided on the two connecting rods (23), and a second hydraulic cylinder (8) is provided on the mounting seat (24).

5. A lifting device according to claim 1, characterized in that The vehicle body (1) is provided with several wheels (6) on both sides, and the vehicle body (1) is provided with support legs (5) at both ends. The support legs (5) are provided with support cylinders (51) on the bottom outer wall, and a rubber pad (52) is provided at one end of the support cylinder (51).

6. A lifting device according to claim 4, wherein The rotating connecting seat (12) is respectively provided on the top surface and bottom surface of the mounting plate (4), the support arm (31) is fixed on the top outer wall of the mounting plate (4) through the rotating connecting seat (12), and one end of the oil cylinder (33) is fixed on the top outer wall of the mounting plate (4) through the rotating connecting seat (12). One end of the connecting rod (21) and the connecting rod (22) are rotatably fixed to the bottom outer wall of the mounting plate (4) via a rotating connecting seat (12).

7. A lifting device according to claim 1, wherein An I-beam (9) is inserted into the C-type clamp (32), and the I-beam (9) is fixed inside the C-type clamp (32) by a screw (34).