Assembled lifting device and method of using the same

Abstract

The present invention discloses an assembled lifting device and a method for using the same. The lifting device includes a lifting column and a lifting beam. One end of the lifting beam is fixed to the top of the lifting column, and the other end is provided with an electric hoist and a movable pulley block. A connecting sleeve is provided at the bottom of the lifting column, and the lifting column and the connecting sleeve are detachably connected. The present invention improves the lifting efficiency and flexibility through an assembled design, reduces the use of large-scale lifting equipment, and thus reduces construction costs. The design is stable and reliable, easy to operate, and enhances the safety of the construction site. Its rotatable feature increases adaptability and can meet the multi-directional lifting requirements in complex environments. In addition, the lifting device can be quickly installed and disassembled, which is convenient for efficient transfer between different construction sites.

Description

Technical Field

[0001] The present invention relates to the technical field of building steel structure construction, and in particular to an assembled lifting device and a use method thereof. Background Art

[0002] In steel structure construction, the use of traditional large lifting equipment is subject to various restrictions. These restrictions include but are not limited to:

[0003] 1. Space limitation: The construction area is limited by site conditions and large machinery cannot enter the site.

[0004] 2. Cost issue: The rental cost of large lifting equipment is high and requires professional operators. If multiple large lifting equipment are configured during construction, the machinery cost and labor cost will increase.

[0005] 3. Inefficiency: When the construction period and mechanical resources are tight, the scheduling and use of large equipment may cause delays in construction progress. Traditional lifting methods usually require multiple adjustments to the position, which increases construction time.

[0006] 4. Safety issues: When large lifting equipment is operated in a small space, there is a high safety risk and it is easy to have collisions or other accidents. Due to the complexity of large equipment, once a failure occurs, the maintenance time is long, which affects the construction progress.

[0007] 5. Environmental impact: The use of large lifting equipment may cause certain interference to the surrounding environment, such as noise pollution and ground damage.

[0008] Therefore, it is of great significance to develop a device that can quickly complete lifting operations under limited resource conditions. Summary of the invention

[0009] The present invention provides an assembled lifting device and a method for using the same, so as to solve the problems of low lifting efficiency, high cost and insufficient flexibility in steel structure construction under the conditions of limited mechanical resources, tight construction period and limited space.

[0010] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: an assembled lifting device, including a lifting column and a lifting beam, one end of the lifting beam is fixed to the top of the lifting column, and the other end is provided with an electric hoist and a movable pulley set, and a connecting sleeve is provided at the bottom of the lifting column, and the lifting column and the connecting sleeve are detachably connected.

[0011] Furthermore, a plurality of corresponding connecting ear plates are arranged on the lifting column and the connecting sleeve along the circumferential direction, and connecting clamping plates are arranged between the corresponding connecting ear plates, and the connecting clamping plates are fixed to the connecting ear plates by means of latches.

[0012] Furthermore, the lifting beam is provided with a stiffening plate at the connection between the lifting column and the lifting beam.

[0013] Furthermore, the lifting column is provided with a back tensioning plate at the connection between the lifting column and the lifting beam.

[0014] Furthermore, the lifting column is made of steel column, the cross section is selected according to the actual working conditions, and the length is between 1 meter and 1.5 meters.

[0015] Furthermore, the lifting beam is a steel beam, the cross-section of which is determined according to the size and weight of the steel member to be hoisted, and the length is between 0.5 meters and 0.6 meters.

[0016] Furthermore, the rated lifting capacity of the electric hoist is selected according to the maximum lifting demand, which is between 5 tons and 10 tons. The design of the movable pulley block should consider the amplification factor of the lifting force, which is 3 times.

[0017] Furthermore, during multi-point lifting, a synchronous control system is provided between the lifting devices. If rotary lifting is involved, it is achieved by controlling the speed of the lifting device.

[0018] The method for using the above-mentioned assembled lifting device comprises the following steps:

[0019] (1) Use a crane to fix the fabricated lifting device, check the verticality and stability of the lifting column, and ensure that it is not loose;

[0020] (2) Use a crane to place the steel structure to be lifted at the designed position projected onto the ground;

[0021] (3) Start the two electric hoists and use the movable pulleys to smoothly lift the steel structure to the specified height. Ensure that the lifting speeds of the two electric hoists are consistent and synchronized. During the lifting process, closely monitor the lifting status to ensure that the lifting action is smooth and uniform and avoid tilting or shaking;

[0022] (4) After the lifting is completed, fix the steel structure at the target position and turn off the electric hoist;

[0023] (5) Release the connecting clamp and latch, rotate one of the devices to an appropriate angle to the next target lifting position, remove the other device from the connecting sleeve, and move it to the next position where the steel structure needs to be lifted;

[0024] (6) Repeat steps (1), (2), (3), and (4) until the target structure is installed.

[0025] In summary, the present invention has the following beneficial effects:

[0026] Improve hoisting efficiency: The prefabricated design reduces the reliance on large hoisting equipment and improves the flexibility and efficiency of hoisting operations;

[0027] Reduce costs: reduce the frequency of use of large equipment and reduce construction costs;

[0028] Enhanced safety: The device is designed to be stable and reliable, easy to operate, and effectively ensures the safety of the construction site;

[0029] Strong adaptability: The rotatable design enables the device to adapt to various complex construction environments and meet the lifting requirements in different directions;

[0030] Easy to operate: quick and easy installation and disassembly, convenient for rapid transfer between multiple construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the lifting device of the present invention;

[0032] Figure 2 for Figure 1 Side view;

[0033] Figure 3 for Figure 1 Front view;

[0034] Figure 4 for Figure 1 Top view;

[0035] Figure 5-Figure 10 It is a schematic diagram of the steps of using the lifting device of the present invention.

[0036] The attached drawings are marked with: 1. lifting beam; 2. lifting column; 3. electric hoist; 4. movable pulley block; 5. connecting clamp; 6. latch; 7. connecting sleeve; 8. back tension plate; 9. stiffening plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-Figure 10 The specific implementation methods of an assembled lifting device and a method of using the same of the present invention are further described in detail.

[0038] An assembled lifting device includes a lifting column 2 and a lifting beam 1. One end of the lifting beam 1 is fixed to the top of the lifting column 2, and the other end is provided with an electric hoist 3 and a movable pulley block 4. A connecting sleeve 7 is provided at the bottom of the lifting column 2, and the lifting column 2 and the connecting sleeve 7 are detachably connected.

[0039] In this embodiment, preferably, a plurality of corresponding connecting ear plates are provided on the lifting column 2 and the connecting sleeve 7 along the circumferential direction, and connecting clamping plates 5 are provided between the corresponding connecting ear plates. The connecting clamping plates and the connecting ear plates are fixed by latches 6.

[0040] Preferably, in this embodiment, the lifting beam 1 is provided with a stiffening plate 9 at the connection between the lifting column and the lifting beam.

[0041] Preferably, in this embodiment, the lifting column is provided with a back tensioning plate 8 at the connection between the lifting column and the lifting beam.

[0042] Preferably, in this embodiment, the lifting column is a steel column, the cross-section is selected according to the actual working conditions, and the length is between 1 meter and 1.5 meters.

[0043] In this embodiment, preferably, the lifting beam is a steel beam, the cross-section of which is determined according to the size and weight of the steel member to be hoisted, and the length is between 0.5 meters and 0.6 meters.

[0044] Furthermore, the rated lifting capacity of the electric hoist is selected according to the maximum lifting demand, which is between 5 tons and 10 tons. The design of the movable pulley block should take into account the amplification multiple of the lifting force, which is 3 times.

[0045] The connecting sleeve of the lifting device can be set on the lifting structure or on the top of the lattice support frame. The connecting sleeve is made of high-strength steel to ensure its load-bearing capacity and stability. The connecting card and latch can be selected according to the actual situation. They need to be simple and reliable, and easy to install and disassemble quickly.

[0046] The production of this lifting device: Select lifting columns 2 and lifting beams 1 with appropriate cross-sections, weld one end of the lifting beam 1 to the top of the lifting column 2, and set a back tension plate 8 and a stiffening plate 9 at the connection. An electric hoist 3 and a set of movable pulleys 4 are set on the other side of the lifting beam 1. Connecting clamps 5 are set in all directions of the lifting column 2 and the connecting sleeve 7, and the connecting sleeve 7 is welded to the lifting structure (lattice support frame).

[0047] An assembled lifting device, the specific use steps are as follows:

[0048] (1) Use a crane to fix the fabricated lifting device, check the verticality and stability of the lifting steel column, and ensure that there is no looseness (such as Figure 5 shown);

[0049] (2) Use a crane to place the steel structure at the designed position and project it onto the ground (such as Figure 6 shown);

[0050] (3) Start the two electric hoists and use the movable pulleys to smoothly lift the steel structure to the specified height. Ensure that the lifting speeds of the two electric hoists are consistent and synchronized. During the lifting process, closely monitor the lifting status to ensure that the lifting action is smooth and uniform and avoid tilting or shaking;

[0051] (4) After the lifting is completed, fix the steel structure in the target position and turn off the electric hoist (such as Figure 7 shown);

[0052] (5) Release the clamp and latch, rotate one of the devices to the appropriate angle to the next target lifting position, remove the other device from the sleeve, and move it to the next position where the steel structure needs to be lifted (such as Figure 8 shown);

[0053] (6) Repeat steps (1), (2), (3), and (4) until the target structure is installed (e.g. Fig.10 shown).

[0054] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An assembled lifting device, characterized in that: It comprises a lifting column and a lifting beam, one end of the lifting beam is fixed on the top of the lifting column, and the other end is provided with an electric hoist and a movable pulley block, a connecting sleeve is provided at the bottom of the lifting column, and the lifting column and the connecting sleeve are detachably connected.

2. The assembled lifting device according to claim 1, characterized in that: A plurality of corresponding connecting ear plates are arranged on the lifting column and the connecting sleeve along the circumferential direction, and connecting clamping plates are arranged between the corresponding connecting ear plates, and the connecting clamping plates and the connecting ear plates are fixed by bolts.

3. The assembled lifting device according to claim 1, characterized in that: The lifting beam is provided with a stiffening plate at the connection between the lifting column and the lifting beam.

4. The assembled lifting device according to claim 3 is characterized in that: The lifting column is provided with a back tensioning plate at the connection between the lifting column and the lifting beam.

5. The assembled lifting device according to claim 1, characterized in that: The lifting column is made of steel column, the cross section is selected according to the actual working conditions, and the length is between 1 meter and 1.5 meters.

6. The assembled lifting device according to claim 1, characterized in that: The lifting beam is a steel beam with a cross-section determined according to the size and weight of the steel structure to be hoisted and a length between 0.5m and 0.6m.

7. The assembled lifting device according to claim 1, characterized in that: The rated lifting capacity of the electric hoist is selected according to the maximum lifting requirement, which is between 5 tons and 10 tons. The design of the movable pulley block should take into account the amplification factor of the lifting force, which is 3 times.

8. The assembled lifting device according to claim 1, characterized in that: In case of multi-point lifting, a synchronous control system is provided between the lifting devices. If rotary lifting is involved, it is achieved by controlling the speed of the lifting device.

9. The method for using the assembled lifting device according to any one of claims 1 to 8, characterized in that: The steps include: (1) Use a crane to fix the fabricated lifting device, check the verticality and stability of the lifting column, and ensure that it is not loose; (2) Use a crane to place the steel structure to be lifted at the designed position projected onto the ground; (3) Start the two electric hoists and use the movable pulleys to smoothly lift the steel structure to the specified height. Ensure that the lifting speeds of the two electric hoists are consistent and synchronized. During the lifting process, closely monitor the lifting status to ensure that the lifting action is smooth and uniform and avoid tilting or shaking; (4) After the lifting is completed, fix the steel structure at the target position and turn off the electric hoist; (5) Release the connecting clamp and latch, rotate one of the devices to an appropriate angle to the next target lifting position, remove the other device from the connecting sleeve, and move it to the next position where the steel structure needs to be lifted; (6) Repeat steps (1), (2), (3), and (4) until the target structure is installed.

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