Building component lifting equipment

Abstract

The invention relates to the technical field of cranes, in particular to building component lifting equipment. A first steel pipe frame; the second steel pipe frame is arranged on the side edge of the first steel pipe frame; the mounting frame is connected to the first steel pipe frame and the second steel pipe frame; the first electric push rods are symmetrically and rotationally mounted on the mounting frame; the arc-shaped plates are symmetrically and rotationally connected to the first steel pipe frame and the second steel pipe frame respectively; the connecting base is connected to the arc-shaped plate, and a telescopic rod of the first electric push rod is rotationally connected with the connecting base. Through the synergistic effect of the first electric push rod and the arc-shaped plate, effective surrounding and stable supporting of the outer side of the reinforcement cage can be achieved in the reinforcement cage lifting process, through the design, the overall stability of the reinforcement cage during overturning in the air can be guaranteed, the problem of bending deformation caused by uneven stress in a traditional double-hook lifting mode can be solved, and the safety of the reinforcement cage is improved. And the protection level of the structural integrity of the reinforcement cage can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and particularly to a lifting device for building components. Background Art

[0002] In construction engineering, as an important component in pile foundation engineering, the installation quality of the steel reinforcement cage directly affects the bearing capacity and structural stability of the pile foundation. Currently, the installation of the steel reinforcement cage usually uses a double-hook lifting device for operation, that is, two sets of hooks are used to fix the steel reinforcement cage respectively, and a lifting device is used to lift it to the pile hole position and complete the flipping operation in the air to adjust it from a horizontal state to a vertical state and then lower it into the hole. However, this traditional lifting method has many technical defects in the actual application process, seriously restricting the construction efficiency and safety.

[0003] Firstly, due to the long longitudinal dimension and large self-weight of the steel reinforcement cage itself, when using double-hook lifting, it is often difficult to achieve a reasonable distribution of the force application points, resulting in uneven stress on the steel reinforcement cage during the lifting process, which easily causes bending deformation and affects its structural integrity. Secondly, the technical threshold for the coordinated operation of the double hooks is relatively high, and it is necessary to accurately control the lifting speed and force distribution of the two sets of lifting tools. During construction, the steel reinforcement cage often undergoes unexpected deflection due to asynchronous operation, which not only prolongs the adjustment time but also may cause a lifting accident. In addition, at the initial stage of flipping, one end of the steel reinforcement cage is usually lifted first and in an inclined state, while the other end is still in contact with the ground. As the lifting action continues, a large extrusion force will be generated between the end of the steel reinforcement cage and the ground, which is extremely likely to cause local deformation at the end of the steel reinforcement cage, further affecting its overall structural performance and construction quality. Summary of the Invention

[0004] In view of this, the present invention provides a lifting device for building components, which can overcome the shortcomings that the existing steel reinforcement cage is prone to bending deformation due to uneven stress during lifting, the end of the steel reinforcement cage is easily locally deformed due to mutual extrusion with the ground, and the technical threshold for the coordinated operation of the double hooks is relatively high, the operation difficulty is relatively large, and it will affect the installation efficiency.

[0005] The technical solution is as follows: A lifting device for building components, comprising: a first steel pipe rack; a second steel pipe rack disposed on the side of the first steel pipe rack; a mounting rack respectively connected to the first steel pipe rack and the second steel pipe rack; a first electric push rod symmetrically and rotatably mounted on the mounting rack; arc-shaped plates respectively symmetrically and rotatably connected to the first steel pipe rack and the second steel pipe rack; a connecting seat connected to the arc-shaped plates, and the telescopic rod of the first electric push rod is rotatably connected to the connecting seat; first inserting rods respectively spaced and connected to one ends of the first steel pipe rack and the second steel pipe rack, and jacks are respectively spaced at the other ends of the first steel pipe rack and the second steel pipe rack, and the first inserting rods are inserted into the jacks to complete the docking of the first steel pipe rack and the second steel pipe rack; first fastening bolts respectively spaced and threadedly connected to one ends of the first steel pipe rack and the second steel pipe rack close to the jacks; a lifting assembly disposed on the first steel pipe rack for lifting the steel reinforcement cage; a protection assembly disposed on the second steel pipe rack for protecting the end of the steel reinforcement cage.

[0006] Further, the lifting assembly includes: a sliding rack slidably connected to the first steel pipe rack; a limit bolt threadedly connected to the first steel pipe rack for limiting the sliding rack; a rotating hook rotatably connected to the sliding rack; sliding hooks symmetrically slidably connected to the sliding rack; an adjusting structure disposed on the sliding rack for adjusting the initial position of the sliding hooks.

[0007] Further, the adjusting structure includes: sliding sleeves symmetrically slidably connected to the sliding rack; a second electric push rod installed on the side of the sliding sleeve, and the telescopic rod of the second electric push rod is connected to the sliding hook; a second fastening bolt threadedly connected to the sliding sleeve.

[0008] Further, the protection assembly includes: a fixed rack disposed on the side of the second steel pipe rack; second inserting rods spaced and connected to the side of the fixed rack, and the second inserting rods can be inserted into the jacks to complete the docking of the second steel pipe rack and the fixed rack; first wheels symmetrically rotatably connected to the fixed rack; a second wheel rotatably connected to the fixed rack.

[0009] Further, it further includes: a reduction motor installed on the sliding rack, and the output shaft of the reduction motor is connected to the rotating shaft of the rotating hook.

[0010] Further, it further includes: connecting frames symmetrically connected to the fixed rack; a third electric push rod installed on the connecting frames; guiding frames symmetrically connected to the fixed rack; a sliding tube slidably connected to the guiding frames, and the sliding tube is sleeved outside the third electric push rod, and the telescopic rod of the third electric push rod is connected to the inner wall of the sliding tube.

[0011] Further, it further includes: a one-line laser installed on the left arc-shaped plate; a locking mechanism disposed on the fixed rack for locking the first wheels.

[0012] Further, the locking mechanism includes: fourth electric push rods symmetrically installed on both sides of the fixed frame; and brake pads connected to the telescopic rods of the fourth electric push rods.

[0013] Advantages of the present invention: 1. Through the synergistic effect of the first electric push rod and the arc-shaped plate, the present invention can effectively embrace and stably support the outside of the steel reinforcement cage during the hoisting process of the steel reinforcement cage. This design can not only ensure the overall stability of the steel reinforcement cage during flipping in the air, but also avoid the bending deformation problem caused by uneven stress in the traditional double-hook hoisting method, and can greatly improve the protection level of the structural integrity of the steel reinforcement cage.

[0014] 2. Through the action of the protection component, when the steel reinforcement cage is flipped, the protection component can effectively prevent the end of the steel reinforcement cage from being squeezed by the ground, reduce the risk of local deformation of the steel reinforcement cage, ensure that the overall quality of the steel reinforcement cage is not affected. At the same time, the locking mechanism can ensure the stability of the fixed frame during flipping, further enhancing the safety and reliability of the operation.

[0015] 3. Through the combined use of the reduction motor, the rotating hook, the sliding hook and the adjustment structure, the operator can accurately adjust the position of the steel reinforcement cage and ensure its accurate alignment during flipping and lowering. This design can simplify the operation process, lower the technical threshold, and thus significantly improve the installation efficiency and construction safety of the steel reinforcement cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 is a schematic diagram of the present invention turning the steel reinforcement cage into a vertical state.

[0018] Figure 3 is a specific structural schematic diagram of the mounting frame, the first electric push rod, the arc-shaped plate and the connecting seat of the present invention.

[0019] Figure 4 is an installation schematic diagram of the first insertion rod and the first fastening bolt of the present invention.

[0020] Figure 5 is an installation schematic diagram of the lifting component of the present invention.

[0021] Figure 6 is an installation schematic diagram of the connecting frame, the third electric push rod, the guiding frame and the sliding tube of the present invention.

[0022] Figure 7 For the present invention Figure 6 is another state schematic diagram.

[0023] Figure 8 is an installation schematic diagram of the fourth electric push rod and the brake pads of the present invention.

[0024] Reference numerals of the drawings: 1 - first steel pipe frame, 2 - second steel pipe frame, 3 - mounting frame, 4 - first electric push rod, 5 - arc plate, 6 - connecting seat, 7 - first insertion rod, 8 - insertion hole, 9 - first fastening bolt, 10 - sliding frame, 101 - reduction motor, 11 - limit bolt, 12 - rotating hook, 13 - sliding hook, 14 - sliding sleeve, 15 - second electric push rod, 16 - second fastening bolt, 17 - fixing frame, 18 - second insertion rod, 19 - first wheel, 20 - second wheel, 21 - connecting frame, 22 - third electric push rod, 23 - guiding frame, 24 - sliding pipe, 25 - one - line laser, 26 - fourth electric push rod, 27 - brake pad. Detailed implementation mode

[0025] Embodiment: A lifting device for building components. The lifting device is equipped with a remote control panel (not shown in the figure). As Figures 1 - 6 shown, it includes a first steel pipe frame 1, a second steel pipe frame 2, a mounting frame 3, a first electric push rod 4, an arc plate 5, a connecting seat 6, a first insertion rod 7, a first fastening bolt 9, a lifting assembly and a protection assembly. A second steel pipe frame 2 is arranged on the right side of the first steel pipe frame 1. The shape of the second steel pipe frame 2 is the same as that of the first steel pipe frame 1. And mounting frames 3 are connected to the middle of the upper parts of both the first steel pipe frame 1 and the second steel pipe frame 2. A first electric push rod 4 is rotatably installed symmetrically before and after on each mounting frame 3. Arc plates 5 are rotatably connected symmetrically before and after to the middle of the lower parts of both the first steel pipe frame 1 and the second steel pipe frame 2. The arc plates 5 correspond to the first electric push rods 4 one by one. A connecting seat 6 is connected to the upper part of each arc plate 5. And the telescopic rod of the first electric push rod 4 is rotatably connected to the connecting seat 6. Four first insertion rods 7 are connected at intervals to the left ends of both the first steel pipe frame 1 and the second steel pipe frame 2. Four insertion holes 8 are spaced apart at the right ends of both the first steel pipe frame 1 and the second steel pipe frame 2. The insertion holes 8 correspond to the first insertion rods 7 one by one. And the first insertion rods 7 can be inserted into the insertion holes 8 so that the first steel pipe frame 1 and the second steel pipe frame 2 can be horizontally butted. Four first fastening bolts 9 are thread - connected at intervals to the right ends of both the first steel pipe frame 1 and the second steel pipe frame 2. A lifting assembly for lifting the steel reinforcement cage is provided on the first steel pipe frame 1. A protection assembly for protecting the end of the steel reinforcement cage is provided on the second steel pipe frame 2.

[0026] As Figure 5As shown in the figure, the lifting assembly includes a sliding frame 10, a reduction motor 101, a limit bolt 11, a rotating hook 12, a sliding hook 13 and an adjustment structure. The lower part of the first steel pipe rack 1 is slidably connected with the sliding frame 10. A reduction motor 101 is installed on the left part of the sliding frame 10. The lower left side of the first steel pipe rack 1 is threadedly connected with a limit bolt 11. The limit bolt 11 is located on the left side of the sliding frame 10 and is used to limit the sliding frame 10 to prevent the sliding frame 10 from detaching from the first steel pipe rack 1. The upper left side of the sliding frame 10 is installed with a rotating hook 12 through a bearing. The rotating hook 12 is used to connect with the hook of the crane, and the right end of the rotating hook 12 is connected to the output shaft of the reduction motor 101. Four sliding hooks 13 are slidably connected at intervals on the right part of the sliding frame 10. The four sliding hooks 13 are distributed vertically, horizontally, front and back. An adjustment structure for adjusting the initial position of the sliding hook 13 is provided on the sliding frame 10; the adjustment structure includes a sliding sleeve 14, a second electric push rod 15 and a second fastening bolt 16. Four sliding sleeves 14 are slidably connected at intervals on the right part of the sliding frame 10. The sliding sleeves 14 correspond to the sliding hooks 13 one by one. A second electric push rod 15 is installed on the left side of each sliding sleeve 14, and the telescopic rod of the second electric push rod 15 is connected to the sliding hook 13. A second fastening bolt 16 is threadedly connected to each sliding sleeve 14.

[0027] As Figure 1 and Figure 6 shown in the figure, the protection assembly includes a fixed frame 17, a second insertion rod 18, a first wheel 19 and a second wheel 20. A fixed frame 17 is provided on the right side of the second steel pipe rack 2. Three second insertion rods 18 are connected at intervals on the upper left side of the fixed frame 17. The second insertion rods 18 can also be inserted into the insertion holes 8, so as to complete the docking work of the second steel pipe rack 2 and the fixed frame 17. The first wheels 19 are symmetrically rotatably connected to the front and back of the lower part of the fixed frame 17, and the second wheels 20 are rotatably connected to the upper part of the fixed frame 17.

[0028] As Figure 6 and Figure 7 shown in the figure, it further includes a connecting frame 21, a third electric push rod 22, a guiding frame 23 and a sliding pipe 24. The lower part of the connecting frame 21 is symmetrically connected to the front and back. Third electric push rods 22 are installed on both connecting frames 21. The lower part of the connecting frame 21 is symmetrically connected to the front and back with guiding frames 23. The guiding frames 23 are located on the right side of the connecting frame 21. Sliding pipes 24 are slidably connected to both guiding frames 23. The sliding pipes 24 are arranged obliquely, and the sliding pipes 24 are sleeved on the outside of the third electric push rods 22. The telescopic rod of the third electric push rod 22 is connected to the inner wall of the sliding pipe 24.

[0029] As Figure 1 and Figure 8As shown, it further includes a cross-line laser 25 and a locking mechanism. The cross-line lasers 25 are installed on both of the two arc-shaped plates 5 on the left side, and a locking mechanism for locking the first wheel 19 is provided on the fixing frame 17; the locking mechanism includes a fourth electric push rod 26 and a brake pad 27. The fourth electric push rods 26 are installed on the lower parts of the front and rear sides of the fixing frame 17, and the brake pads 27 are connected to the telescopic rods of the two fourth electric push rods 26. The brake pads 27 are located directly above the first wheel 19.

[0030] In the initial state, the fixing frame 17 is in a horizontal state, and both the first wheel 19 and the second wheel 20 are in contact with the ground, which can keep the fixing frame 17 stable; when the steel reinforcement cage needs to be installed, first, an appropriate number of second steel pipe frames 2 can be selected according to the length of the steel reinforcement cage, and then the worker can horizontally connect the first steel pipe frame 1 and the second steel pipe frame 2 on the ground so that the first insertion rods 7 can all be inserted into the adjacent insertion holes 8, and then tighten the corresponding first fastening bolts 9 to complete the connection work of the first steel pipe frame 1 and the second steel pipe frame 2; then hook the rotating hook 12 with the hook of the crane, and the crane can be used to lift the first steel pipe frame 1 and the second steel pipe frame 2 into the air, making the first steel pipe frame 1 and the second steel pipe frame 2 in a vertical state, and move the first steel pipe frame 1 and the second steel pipe frame 2 to directly above the fixing frame 17, and then control the first steel pipe frame 1 and the second steel pipe frame 2 to move downward, and the worker can assist the second insertion rod 18 to be inserted into the insertion hole 8 on the lowermost second steel pipe frame 2, and then tighten the first fastening bolt 9 on the lowermost second steel pipe frame 2 to complete the connection work of the second steel pipe frame 2 and the fixing frame 17;Then, a crane can be used to lift the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17 into the air and move them to the upper right of the steel reinforcement cage. At this time, the one-line laser 25 can be controlled to emit a one-line laser and irradiate it on the ground. At the same time, the reduction motor 101 is controlled to start working. Since the rotating hook 12 is hung on the hook of the crane, the rotating hook 12 does not rotate. At this time, the reduction motor 101 will rotate itself, driving the sliding frame 10, the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17 to rotate, so as to adjust the orientations of the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17. When the one-line lasers emitted by the two one-line lasers 25 respectively irradiate on the front and rear sides of the steel reinforcement cage, it means that the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17 are in the same vertical plane as the steel reinforcement cage. Then, the fixing rack 17 can be stably placed at the right end of the steel reinforcement cage. Then, the fourth electric push rod 26 is controlled to drive the brake pad 27 to move towards the first wheel 19 until the brake pad 27 contacts the surface of the first wheel 19. Through the friction between the brake pad 27 and the first wheel 19, the rotation of the first wheel 19 can be prevented, so that the first wheel 19 can be locked. At this time, by pulling the rotating hook 12 to move left by the crane, the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17 can rotate downwards with the first wheel 19 as the rotation center until the first steel pipe rack 1 and the second steel pipe rack 2 rotate to the top of the steel reinforcement cage. At this time, the sliding frame 10 is located at the left end of the steel reinforcement cage. Then, the fourth electric push rod 26 is controlled to drive the brake pad 27 to move away from the first wheel 19 to reset, so that the brake pad 27 is separated from the first wheel 19. Then, the first electric push rod 4 is controlled to drive the arc plate 5 to rotate and close, so that the arc plate 5 can surround the outside of the steel reinforcement cage. Then, the sliding frame 10 is pushed to the right, and the sliding frame 10 can drive the sliding hook 13 to move to the right and enter the inside of the steel reinforcement cage. Then, the second electric push rod 15 is controlled to drive the four sliding hooks 13 to move towards the mutually separated sides, so that the four sliding hooks 13 all pass through the outside of the steel reinforcement cage. Then, by pulling the rotating hook 12 to move up by the crane, the sliding frame 10 will first slide to the left and reset on the first steel pipe rack 1. The sliding frame 10 will drive the sliding hook 13 to move to the left and hook the steel reinforcement cage. Subsequently, the sliding frame 10 can move up with the rotating hook 12, and the sliding frame 10 can lift the left end of the steel reinforcement cage through the sliding hook 13, so that the steel reinforcement cage rotates upwards with the first wheel 19 as the rotation center. In this way, the right end of the steel reinforcement cage can be prevented from being squeezed against the ground and deformed. During the flipping process, the arc plate 5 can limit the steel reinforcement cage to prevent the steel reinforcement cage from bending and deforming. At the same time, the first steel pipe rack 1, the second steel pipe rack 2 and the fixing rack 17 will also rotate upwards and reset with the first wheel 19 as the rotation center until the steel reinforcement cage flips to a vertical state (such as; Figure 2As shown in the figure); then use a crane to lift the rotating hook 12 and the sliding frame 10. The sliding frame 10 can lift the steel reinforcement cage into the air through the sliding hook 13. Then control the movement of the steel reinforcement cage to above the installation hole, and then control the third electric push rod 22 to drive the sliding tube 24 to move downward and extend, so that the two sliding tubes 24 are in a V shape. Then control the crane to move the rotating hook 12 and the sliding frame 10 downward. The sliding frame 10 can lower the steel reinforcement cage through the sliding hook 13, so that the sliding tube 24 can be inserted into the installation hole. The sliding tube 24 plays a positioning role to make the steel reinforcement cage vertically aligned with the installation hole. At this time, the fixing frame 17 will be on the ground outside the installation hole. Then control the first electric push rod 4 to drive the arc-shaped plate 5 to reverse and open, so that the arc-shaped plate 5 is separated from the steel reinforcement cage. Then control the third electric push rod 22 to drive the sliding tube 24 to move upward and retract. Then control the crane to continue to move the rotating hook 12 and the sliding frame 10 downward. The sliding frame 10 can continue to lower the steel reinforcement cage through the sliding hook 13, so that the steel reinforcement cage can smoothly enter the installation hole. At this time, the sliding frame 10 will move downward along the first steel pipe rack 1 and the second steel pipe rack 2, thus not affecting the lowering of the steel reinforcement cage. When the steel reinforcement cage is installed, control the crane to continue to move the rotating hook 12 and the sliding frame 10 downward. The sliding frame 10 will drive the sliding hook 13 to move downward and separate from the steel reinforcement cage. Then control the second electric push rod 15 to drive the four sliding hooks 13 to move towards the side where they are close to each other, so that the sliding hooks 13 are completely retracted inside the steel reinforcement cage. Then control the crane to move the rotating hook 12 and the sliding frame 10 upward, so that the sliding frame 10 can move upward and reset along the first steel pipe rack 1 and the second steel pipe rack 2. The sliding frame 10 can drive the sliding hook 13 to move upward and away from the steel reinforcement cage. Then use the crane to lift the first steel pipe rack 1, the second steel pipe rack 2 and the fixing frame 17 to the right end of the next steel reinforcement cage, and repeat the above operations to lift and install the next steel reinforcement cage, without the need for splicing work anymore; when it is necessary to adapt to steel reinforcement cages of different diameters, first loosen the second fastening bolt 16, and then move the position of the sliding sleeve 14. The sliding sleeve 14 can drive the second electric push rod 15 and the sliding hook 13 to move synchronously to adjust the initial position of the sliding hook 13 to ensure that the four sliding hooks 13 can completely enter the inside of the steel reinforcement cage. After adjustment, tighten the second fastening bolt 16 to fix the position of the sliding hook 13.

Claims

1. A hoisting device for building components, characterized in that, It includes: a first steel pipe rack (1); a second steel pipe rack (2) arranged on the side of the first steel pipe rack (1); a mounting rack (3) respectively connected to the first steel pipe rack (1) and the second steel pipe rack (2); a first electric push rod (4) symmetrically and rotatably mounted on the mounting rack (3); arc-shaped plates (5) respectively symmetrically and rotatably connected to the first steel pipe rack (1) and the second steel pipe rack (2); a connecting seat (6) connected to the arc-shaped plates (5), and the telescopic rod of the first electric push rod (4) is rotatably connected to the connecting seat (6); first insertion rods (7) respectively connected at intervals to one end of the first steel pipe rack (1) and the second steel pipe rack (2), and jack holes (8) are respectively opened at intervals at the other end of the first steel pipe rack (1) and the second steel pipe rack (2), and the first insertion rods (7) are inserted into the jack holes (8) to complete the docking of the first steel pipe rack (1) and the second steel pipe rack (2); first fastening bolts (9) respectively threadedly connected at intervals to one end of the first steel pipe rack (1) and the second steel pipe rack (2) close to the jack holes (8); a lifting assembly arranged on the first steel pipe rack (1) for lifting the steel reinforcement cage; a protection assembly arranged on the second steel pipe rack (2) for protecting the end of the steel reinforcement cage.

2. The hoisting device for building components according to claim 1, characterized in that, The lifting assembly includes: a sliding rack (10) slidably connected to the first steel pipe rack (1); a limit bolt (11) threadedly connected to the first steel pipe rack (1) for limiting the sliding rack (10); a rotating hook (12) rotatably connected to the sliding rack (10); sliding hooks (13) symmetrically slidably connected to the sliding rack (10); an adjusting structure arranged on the sliding rack (10) for adjusting the initial position of the sliding hooks (13).

3. The hoisting device for building components according to claim 2, characterized in that, The adjusting structure includes: sliding sleeves (14) symmetrically slidably connected to the sliding rack (10); a second electric push rod (15) installed on the side of the sliding sleeves (14), and the telescopic rod of the second electric push rod (15) is connected to the sliding hooks (13); second fastening bolts (16) threadedly connected to the sliding sleeves (14).

4. The lifting device for building components according to claim 1, characterized in that, The protection assembly includes: a fixed rack (17) arranged on the side of the second steel pipe rack (2); second insertion rods (18) connected at intervals to the side of the fixed rack (17), and the second insertion rods (18) can be inserted into the jack holes (8) to complete the docking of the second steel pipe rack (2) and the fixed rack (17); first wheels (19) symmetrically rotatably connected to the fixed rack (17); second wheels (20) rotatably connected to the fixed rack (17).

5. The hoisting device for building components according to claim 2, characterized in that, It also includes: a reduction motor (101) installed on the sliding rack (10), and the output shaft of the reduction motor (101) is connected to the rotating shaft of the rotating hook (12).

6. The hoisting device for building components according to claim 4, characterized in that, It also includes: connecting frames (21) symmetrically connected to the fixed rack (17); a third electric push rod (22) installed on the connecting frames (21); guiding frames (23) symmetrically connected to the fixed rack (17); a sliding tube (24) slidably connected to the guiding frames (23), and the sliding tube (24) is sleeved outside the third electric push rod (22), and the telescopic rod of the third electric push rod (22) is connected to the inner wall of the sliding tube (24).

7. The lifting device for building components according to claim 4, characterized in that, It further includes: a one-line laser (25) installed on the arc-shaped plate (5) on the left side; a locking mechanism arranged on the fixing frame (17) for locking the first wheel (19).

8. The hoisting device for building components according to claim 7, characterized in that, The locking mechanism includes: fourth electric push rods (26) symmetrically installed on both sides of the fixing frame (17); brake pads (27) connected to the telescopic rods of the fourth electric push rods (26).

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