Hoisting device for color steel sandwich panel

Abstract

The invention provides a color steel sandwich panel hoisting device, which belongs to the technical field of hoisting, is used for clamping and hoisting a color steel sandwich panel, and comprises a hoisting bracket, a lifting mechanism, a lifting mechanism and a lifting mechanism, the clamping device is arranged at the lower end of the hoisting support, the clamping device at least comprises two clamping assemblies arranged at intervals, and each clamping assembly comprises a shear shank assembly and a clamping plate assembly arranged at the lower end of the shear shank assembly; and the safety limiting device is arranged on the outer side of the clamping plate assembly, the safety limiting device comprises a limiting rod, the tail end of the limiting rod is rotationally connected with a limiting disc, and a limiting protrusion is fixed to the side wall of the limiting disc. The color steel sandwich panel is stably limited under the dual action, and the safety and stability of the color steel sandwich panel in the hoisting process are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of port hoisting and lifting, and in particular to a color steel sandwich panel hoisting device. Background Art

[0002] Container color-coated steel sandwich panel is a composite panel commonly used in container buildings, mobile homes, temporary facilities and other fields. It is composed of color-coated steel plates (color-coated steel) and sandwich materials. It has the characteristics of light weight, heat preservation, fire resistance, and sound insulation.

[0003] The port lifting, transportation and installation of container color steel sandwich panels require the use of lifting devices. Some color steel sandwich panels are simply lifted and hoisted by ropes, and some color steel sandwich panels are lifted and hoisted after the clamping limit is stable. The clamping limit method does not require manual bolting of the rope, and the lifting efficiency is high.

[0004] The clamping and limiting method does not require drilling on the surface of the color steel sandwich panel, causes little damage to the color steel sandwich panel, and can be adapted to the hoisting and lifting of most color steel sandwich panels; however, the clamping and limiting method simply relies on the friction between the materials to overcome the gravity of the color steel sandwich panel. For some color steel sandwich panels with large mass and smooth surface, the clamping and limiting effect is poor, and the stability during the hoisting process is poor, which is easy to cause safety accidents.

[0005] By increasing the area of the clamping plate, increasing the roughness of the clamping plate surface and drilling holes, the friction force can be increased, thereby improving the stability of the color steel sandwich panel during the lifting process; however, the core is to improve the stability of the clamping by increasing the friction. When shaking or other emergencies occur during the lifting process, the color steel sandwich panel is limited by friction alone, and its stability performance is poor, and safety accidents often occur. Summary of the invention

[0006] In view of the above problems, the present invention provides a color steel sandwich panel hoisting device, in which the color steel sandwich panel is stably limited under dual effects, thereby ensuring the safety and stability of the color steel sandwich panel during the hoisting process.

[0007] To solve the above problems, the technical solution adopted by the present invention is: A color steel sandwich panel hoisting device for clamping and hoisting color steel sandwich panels, comprising: a hoisting bracket, which is horizontally arranged and strip-shaped; a clamping device, which is arranged at the lower end of the hoisting bracket, and the clamping device at least includes two clamping components arranged at intervals, and each clamping component includes a scissors frame component and a clamping plate component arranged at the lower end of the scissors frame component; a safety limit device, which is arranged outside the clamping plate component, and the safety limit device includes a limit rod, the end of the limit rod is rotatably connected with a limit disk, and a limit protrusion is fixed on the side wall of the limit disk; wherein, after the clamping plate component clamps the color steel sandwich panel, the limit disk automatically moves to the lower position of the color steel sandwich panel, and the limit protrusion deflects towards the inside and is located at the bottom of the color steel sandwich panel to complete safety limiting.

[0008] Preferably, after the limit rod acts, it drives the limit disk to move to the lower position of the color steel sandwich panel, and the limit protrusion has an initial deflection angle.

[0009] Preferably, the base end of the limit rod is rotatably connected with the clamping plate component, a first torsion elastic element is arranged at the rotation connection of the limit disk and the limit rod, a second torsion elastic element is arranged at the rotation connection of the limit rod and the clamping plate component, and a limit component is arranged between the limit rod and the clamping plate component to control the limit rod to be initially in a horizontal state.

[0010] Preferably, the limit rod is vertically arranged, and the limit rod is an elastic telescopic rod, and a deflection component is arranged inside the limit rod. After the limit rod extends, it drives the limit protrusion to deflect towards the inside and is located at the bottom of the color steel sandwich panel to complete safety limiting.

[0011] Preferably, the limit rod includes a limit base and a telescopic end, and the deflection component includes a deflection protrusion fixedly connected to the inside of the limit base, and a deflection control groove adapted to the deflection protrusion is arranged on the surface of the telescopic end.

[0012] Preferably, a control piston is hermetically and slidably connected to the inner wall of the limit base, a control chamber is formed between the control piston and the limit base, a telescopic control component filled with control hydraulic oil is arranged on the inner wall of the clamping plate component, and the telescopic control component is communicated with the control chamber.

[0013] Preferably, the scissors frame component includes a cross joint, the cross joint includes two cross rods, and the two cross rods are rotatably connected through a cross rotating shaft. The first end of the cross joint is connected to the hoisting bracket through a connecting joint, the second end is connected to the clamping plate component, and a telescopic component is arranged between the two cross rods.

[0014] Preferably, the connecting joint includes two connecting rods that are rotatably connected. A positioning base is provided at the rotational connection of the two connecting rods and is connected to the lifting bracket. One side of the two connecting rods away from the rotational connection is respectively rotatably connected to the corresponding cross bar.

[0015] Preferably, an extension portion that is bent is further fixed to the outside of the cross bar. The extension portion extends in the outer direction, and the connecting rod is rotatably connected to the extension portion.

[0016] Preferably, the lifting bracket includes a lifting cross bar and a lifting rope group. The lifting rope group includes at least two lifting connection seats, and a connecting rope is provided at the upper end of the lifting connection seat.

[0017] The beneficial effects of the present invention are as follows: By providing the above structure, the side wall of the color steel sandwich panel is limited under the frictional force of the clamping plate assembly, and the bottom of the color steel sandwich panel is limited under the support of the limiting protrusion. Stable limiting is carried out under the dual action, ensuring the safety and stability of the color steel sandwich panel during the lifting process; the above dual-limiting actions can be automatically carried out without manual participation of the staff at the lifting site, with high lifting efficiency and a greatly improved lifting safety factor, especially suitable for the rapid and safe lifting, transportation and installation of color steel sandwich panels for port containers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 is the Figure 1 front view structural schematic diagram of the present invention.

[0020] Figure 3 is the Figure 1 side view structural schematic diagram of the present invention.

[0021] Figure 4 is the Figure 1 top view structural schematic diagram of the present invention.

[0022] Figure 5 is the Figure 2 enlarged structural schematic diagram at A of the present invention.

[0023] Figure 6 is the Figure 3 enlarged structural schematic diagram at B of the present invention.

[0024] Figure 7 is the schematic diagram of the lifting state of the color steel sandwich panel of the present invention.

[0025] Figure 8 is the Figure 7 enlarged structural schematic diagram at C of the present invention.

[0026] Figure 9 This is a schematic diagram of the internal structure of the second embodiment of the safety limit device of the present invention.

[0027] In the figure: 100, hoisting rope group; 110, hoisting connection seat; 120, connecting rope; 200, hoisting cross frame; 210, channel steel; 220, mounting bolt; 300, scissors frame assembly; 310, positioning base; 320, connecting joint; 330, cross joint; 331, extension part; 332, cross bar; 333, cross rotating shaft; 340, telescopic assembly; 400, clamping plate assembly; 410, clamping plate; 420, mounting base; 500, safety limit device; 510, limit rod; 511, limit hole; 512, mounting rotating shaft; 513, limit base; 514, control piston; 515, rotating connecting piece; 516, deflection control groove; 517, deflection protrusion; 518, telescopic end; 520, limit disc; 521, limit protrusion; 600, telescopic control assembly; 610, limit assembly; 700, color steel sandwich panel. Specific embodiments

[0028] The present invention will be further described below with reference to the drawings and embodiments.

[0029] To solve the problems existing in the background art, referring to the attached Figure 1 - attached Figure 9 , a color steel sandwich panel hoisting device for clamping and hoisting the color steel sandwich panel 700, including a hoisting bracket, a clamping device, and a safety limit device 500. The clamping device can clamp and limit the color steel sandwich panel 700, and the safety limit device 500 can support and limit the color steel sandwich panel 700 from the bottom position, and can support the color steel sandwich panel 700 from the bottom to ensure the stability and safety of the color steel sandwich panel 700 during the hoisting process.

[0030] The hoisting bracket is horizontally arranged and is strip-shaped. During the hoisting process, controlling the hoisting bracket to be consistent with the length direction of the color steel sandwich panel 700 can realize the positioning of the clamping device.

[0031] The clamping device is arranged at the lower end of the hoisting bracket. The clamping device includes at least two clamping components arranged at intervals. The two clamping components can clamp and limit the color steel sandwich panel 700 at both sides, and clamp and limit the color steel sandwich panel 700 under the action of friction to ensure the stability of the color steel sandwich panel 700 during the hoisting process.

[0032] Specifically, the clamping assembly includes a scissors frame assembly 300 and a clamping plate assembly 400 provided at the lower end of the scissors frame assembly 300; the clamping plate assembly 400 here includes two clamping plates 410 and a mounting base 420, and the distance between the two clamping plates 410 can be adjusted after the crossing angle of the scissors frame assembly 300 changes, so as to complete the clamping and limiting of the color steel sandwich panel 700 and ensure the stability during the hoisting process.

[0033] The clamping plate 410 and the mounting base 420 are fixedly connected here, and the mounting base 420 and the scissors frame assembly 300 are rotatably connected, and a limiter and a torsion spring can be installed at the rotation connection, so as to control the clamping plate 410 to be constantly in a relatively vertical state to quickly clamp and limit the color steel sandwich panel 700.

[0034] The safety limiting device 500 is provided outside the clamping plate assembly 400. The safety limiting device 500 includes a limiting rod 510, and the end of the limiting rod 510 is rotatably connected with a limiting disk 520, and a limiting protrusion 521 is fixed on the side wall of the limiting disk 520; the limiting rod 510 can be in a horizontal, inclined or vertical state in the initial state. When the color steel sandwich panel 700 is clamped, the limiting rod 510 is in a vertical state; in the initial state, the limiting protrusion 521 deflects outward, and after the color steel sandwich panel 700 is clamped, the limiting protrusion 521 deflects inward and is located at the lower end of the color steel sandwich panel 700, and can support and limit the color steel sandwich panel 700.

[0035] After the clamping plate assembly 400 clamps the color steel sandwich panel 700, the limiting disk 520 automatically moves to the lower position of the color steel sandwich panel 700, and the limiting protrusion 521 deflects inward and is located at the bottom of the color steel sandwich panel 700 to complete the safety limit. At this time, the side wall of the color steel sandwich panel 700 is limited by the friction force of the clamping plate assembly 400, and the bottom of the color steel sandwich panel 700 is limited by the support of the limiting protrusion 521. Under the dual action, stable limiting is carried out, ensuring the safety and stability of the color steel sandwich panel 700 during the hoisting process.

[0036] It should be noted that the limiting protrusion 521 automatically deflects inward after the color steel sandwich panel 700 is clamped, and automatically moves to a predetermined position to support and limit the bottom of the color steel sandwich panel 700, without the need for staff to adjust, greatly improving the efficiency of clamping and limiting. At the same time, the staff does not need to operate near 700, which also improves the safety during the hoisting process.

[0037] After the limit rod 510 is actuated, it drives the limit plate 520 to move to the lower end of the color steel sandwich panel 700. As mentioned above, the initial state of the limit rod 510 can be selected to be horizontal, inclined or vertical. When the limit rod 510 is set to horizontal or inclined, the space volume occupied by the overall equipment in the longitudinal direction can be shortened, and it can be better moved between different lifting sites, thereby improving the lifting efficiency.

[0038] When the limit rod 510 is set vertically, the limit rod 510 is in an expanded state. The vertically set limit rod 510 can position the entire structure during the lifting process. When the limit rod 510 contacts the ground or the load-bearing platform, the limit rod 510 and the entire lifting device are in a suitable position in the longitudinal direction, which can also improve the lifting efficiency.

[0039] The above two methods can be set according to the actual lifting site and the needs of the lifting operation.

[0040] The limiting protrusion 521 has an initial deflection angle. By setting the limiting protrusion 521 with an initial deflection angle, in the initial stage of lifting, the limiting protrusion 521 can be controlled to be staggered with the color steel sandwich panel 700, which can avoid the clamping plate assembly 400 from being unable to effectively clamp and limit the color steel sandwich panel 700 during the clamping and limiting process, and also avoid the related structure being damaged due to excessive tightness, thereby ensuring the normal and effective lifting of the color steel sandwich panel 700.

[0041] As a first embodiment of the safety limit device 500, the base end of the limit rod 510 is rotationally connected to the clamping plate assembly 400, and a first torsion elastic element is provided at the rotation connection between the limit plate 520 and the limit rod 510. Under the action of the first torsion elastic element, the limit protrusion 521 on the side wall of the limit plate 520 has a tendency to rotate inward; a second torsion elastic element is provided at the rotation connection between the limit rod 510 and the clamping plate assembly 400. Under the action of the second torsion elastic element, the limit rod 510 has a tendency to rotate to a vertical state, and a limit assembly 610 is provided between the limit rod 510 and the clamping plate assembly 400 for controlling the limit rod 510 to be initially in a horizontal state. Under the action of the limit assembly 610, the initial state of the limit rod 510 is attached Figure 2 The horizontal state shown.

[0042] After the clamping and limiting of the color steel sandwich panel 700 are completed, the limiting of the limiting rod 510 by the limiting component 610 here disappears. Under the action of the torsion elastic element, the limiting rod 510 can rotate from the horizontal state to the vertical state in a predetermined direction, and the limiting disk 520 is controlled to be located at the bottom of the color steel sandwich panel 700. After the limiting disk 520 rotates to the bottom position, the limiting disk 520 can also deflect under the action of the torsion spring, and the limiting protrusion 521 is automatically deflected inward to move to the position at the bottom of the color steel sandwich panel 700 for support.

[0043] Through the setting of the above structure, after the color steel sandwich panel 700 is clamped, under the action of the torsion elastic element, the corresponding structure can be automatically deflected to a predetermined position, and the limiting protrusion 521 is automatically deflected inward to support the bottom of the color steel sandwich panel 700, ensuring the stability of the color steel sandwich panel 700 during the hoisting process.

[0044] The limiting component 610 here can be selected as an electric control telescopic or hydraulic telescopic locking structure. A limiting hole 511 is opened on the surface of the limiting rod 510, which can be adapted to the limiting component 610 to effectively lock the limiting rod 510. During the reset process, the staff only needs to first control the limiting component 610 to contract. After the limiting rod 510 rotates to the horizontal predetermined position, then control the limiting component 610 to extend, which is simple and convenient.

[0045] As the second implementation mode of the safety limiting device 500, the limiting rod 510 is constantly arranged vertically, and the limiting rod 510 is an elastic telescopic rod. A deflection component is arranged inside the limiting rod 510. Through the deflection component, the deflection angle of the limiting disk 520 can be adjusted, and then the position of the limiting protrusion 521 can be adjusted. After the limiting rod 510 extends, it drives the limiting protrusion 521 to deflect inward and is located at the bottom of the color steel sandwich panel 700 to complete safety limiting.

[0046] Through the above method, the limiting rod 510 does not need to deflect, the limiting rod 510 can be positioned at a constant position, and the efficiency of the limiting protrusion 521 located at the bottom of the color steel sandwich panel 700 for support and limitation is higher. At the same time, after the limiting rod 510 extends, the limiting disk 520 can be controlled to move to the lower end of the color steel sandwich panel 700, and the limiting protrusion 521 can automatically deflect inward under the action of the deflection component. After the color steel sandwich panel 700 is clamped, it can be automatically limited, ensuring the overall stability.

[0047] Specifically refer to the appendix Figure 9The limit rod 510 includes a limit base 513 and a telescopic end 518. The deflection assembly includes a deflection protrusion 517 fixedly connected to the inside of the limit base 513. The surface of the telescopic end 518 is provided with a deflection control groove 516 adapted to the deflection protrusion 517. The deflection protrusion 517 can be located at a constant position to guide the deflection control groove 516 to achieve deflection control.

[0048] During the extension of the telescopic end 518, the deflection control groove 516 is extended and deflected at the same time under the limitation of the deflection protrusion 517; the deflection control groove 516 here is relatively flat, avoiding the occurrence of jamming during the extension process.

[0049] The inner wall of the limiting base 513 is sealed and slidably connected with a control piston 514, and a control chamber is formed between the control piston 514 and the limiting base 513. The inner wall of the clamping plate assembly 400 is provided with a telescopic control assembly 600 filled with control oil, and the telescopic control assembly 600 is connected to the control chamber.

[0050] The telescopic control component 600 here can be selected as a hydraulic telescopic rod or telescopic bag with reset elasticity. Under normal circumstances, the telescopic control component 600 is in an expanded state; in the process of the clamping plate components 400 on both sides moving toward the inside to complete the clamping and limiting of the color steel sandwich panel 700, the telescopic control component 600 here is pressurized, and the control oil inside the telescopic control component 600 can be squeezed into the control chamber to push the control piston 514 to move toward the outside, and finally automatically realize the extension control of the telescopic end 518.

[0051] It should be noted that the limit rod 510 here also has reset elasticity. After the extrusion limit of the clamping plate assembly 400 on the color steel sandwich panel 700 disappears, the control oil can flow back to the telescopic control assembly 600. During this process, the limit rod 510 contracts, the telescopic control assembly 600 expands, and the whole automatically returns to its initial state.

[0052] When the surface of the limiting protrusion 521 is pressed against the bottom of the color steel sandwich panel 700, you can choose to manually or place the color steel sandwich panel 700 on an uneven tripod to control the limiting protrusion 521 to separate from the color steel sandwich panel 700. Then the limiting protrusion 521 can automatically deflect toward the outside under the action of elasticity and the deflection component to achieve automatic resetting.

[0053] At the same time, a rotating connecting piece 515 can be rotatably connected to the side wall of the control piston 514, and the rotating connecting piece 515 is connected to the telescopic end 518. The above structure can prevent the control piston 514 from rotating, thereby ensuring the stability of the normal movement of the control piston 514.

[0054] Through the above structural design, the overall structure has a small range of movement and high movement efficiency. The limit disc 520 extends a short distance and deflects within a small range to control the limit protrusion 521 to reach the predetermined position for limiting, ensuring the stability of the hoisting of the color steel sandwich panel 700. At the same time, the limit rod 510 here is normally in a vertical state and can play a role in longitudinal positioning during the hoisting process, further ensuring the accuracy and stability of the hoisting.

[0055] Specifically, the scissors frame assembly 300 includes a cross joint 330. The cross joint 330 includes two cross bars 332, and the two cross bars 332 are rotatably connected through a cross rotating shaft 333. The first end of the cross joint 330 is connected to the hoisting bracket through a connecting joint 320, the second end is connected to the clamping plate assembly 400, and a telescopic assembly 340 is arranged between the two cross bars 332.

[0056] The telescopic assembly 340 here can be selected as a hydraulic telescopic rod or an electric control telescopic rod. Before hoisting, the telescopic assembly 340 can control the included angle at the bottom of the two cross bars 332 to increase, and can control the distance between the two clamping plate assemblies 400 at the bottom to increase, facilitating the clamping and positioning of the color steel sandwich panel 700. After the clamping and positioning of the color steel sandwich panel 700 is completed, the telescopic assembly 340 can control the included angle at the bottom of the two cross bars 332 to decrease. During this process, the distance between the two clamping plate assemblies 400 at the bottom can be controlled to decrease, gradually completing the clamping of the color steel sandwich panel 700, and ensuring the stability of the color steel sandwich panel 700 under the action of friction, facilitating subsequent hoisting and lifting.

[0057] The connecting joint 320 includes two rotatably connected connecting rods. A positioning base 310 is arranged at the rotatable connection of the two connecting rods and is connected to the hoisting bracket. The two sides of the two connecting rods away from the rotatable connection are respectively rotatably connected to the corresponding cross bars 332.

[0058] Through the above structural design, after the color steel sandwich panel 700 is completely hoisted off the ground, under the action of the gravity of the color steel sandwich panel 700, there is a tendency to pull the cross joint 330 and the connecting joint 320 downward. At this time, the included angles at the bottoms of the cross bars 332 and the connecting rods continue to have a tendency to decrease, which can further enhance the stability of the clamping and limiting by using the gravity of the color steel sandwich panel 700. At the same time, the structure of the connecting joint 320 can reduce the longitudinal volume of the overall hoisting device, facilitating the mutual crossing of the two cross bars 332 to complete the clamping of the color steel sandwich panel 700.

[0059] On the outer side of the cross bar 332, there is also a fixed extension part 331 which is bent. The extension part 331 extends towards the outer side. The connecting rod is rotationally connected to the extension part 331. Here, the bent extension part 331 can further reduce the volume occupied longitudinally by the overall structure. In particular, when the safety limiting device 500 supports and limits the bottom of the color steel sandwich panel 700, the cross bar 332 can further have a tendency to move towards the bottom. The included angle between the two cross bars 332 can be further reduced under the action of the gravity of the color steel sandwich panel 700. After the included angle between the two cross bars 332 is reduced, the distance between the two clamping plate assemblies 400 can be reduced, which can further enhance the friction force of the clamping plate assemblies 400. Eventually, the friction force of the clamping plate assemblies 400 for clamping the color steel sandwich panel 700 is also enhanced, further ensuring the stability of the color steel sandwich panel 700 during the hoisting process. The extension part 331 here can play the role of a lever, which can improve the action speed and effect of the cross bar 332 and the upper connecting rod, and enhance the above-mentioned effects of clamping, limiting and supporting the color steel sandwich panel 700.

[0060] The hoisting bracket includes a hoisting cross frame 200 and a hoisting rope group 100. The hoisting rope group 100 includes at least two hoisting connection seats 110. A connection rope 120 is arranged at the upper end of the hoisting connection seat 110. The position of the hoisting connection seat 110 here can be selected and adjusted according to the length of the hoisting cross frame 200. Multiple connection ropes 120 finally converge at one place. By connecting the connection ropes 120 through a hoisting device, the hoisting of the overall structure can be completed.

[0061] The hoisting cross frame 200 here includes channel steels 210 and installation bolts 220. Two channel steels 210 are provided. The two channel steels 210 are fixed and limited through the installation bolts 220. A gap is formed between the two channel steels 210, which can facilitate the adjustment of the positions of the hoisting connection seats 110 and the clamping assemblies, and can meet the hoisting requirements of color steel sandwich panels 700 with different length dimensions.

[0062] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hoisting device for color steel sandwich panels, which is used to clamp and hoist color steel sandwich panels (700), and is characterized in that, Including: A hoisting bracket, which is horizontally arranged and strip-shaped; A clamping device, which is arranged at the lower end of the hoisting bracket. The clamping device includes at least two spaced clamping components. Each clamping component includes a scissors frame component (300) and a clamping plate component (400) arranged at the lower end of the scissors frame component (300); A safety limit device (500), which is arranged outside the clamping plate component (400). The safety limit device (500) includes a limit rod (510). The end of the limit rod (510) is rotatably connected to a limit disk (520), and a limit protrusion (521) is fixed on the side wall of the limit disk (520); Wherein, after the clamping plate component (400) clamps the color steel sandwich panel (700), the limit disk (520) automatically moves to the lower position of the color steel sandwich panel (700), and the limit protrusion (521) deflects towards the inside and is located at the bottom of the color steel sandwich panel (700) to complete safety limitation.

2. The hoisting device for color steel sandwich panel according to claim 1, characterized in that, After the limit rod (510) acts, it drives the limit disk (520) to move to the lower position of the color steel sandwich panel (700), and the limit protrusion (521) has an initial deflection angle.

3. The hoisting device for color steel sandwich panel according to claim 2, wherein, The base end of the limit rod (510) is rotatably connected to the clamping plate component (400). A first torsion elastic element is arranged at the rotation connection of the limit disk (520) and the limit rod (510). A second torsion elastic element is arranged at the rotation connection of the limit rod (510) and the clamping plate component (400). A limit component (610) is arranged between the limit rod (510) and the clamping plate component (400) to control the limit rod (510) to be initially in a horizontal state.

4. The hoisting device for color steel sandwich panels according to claim 2, characterized in that, The limit rod (510) is vertically arranged and is an elastic telescopic rod. A deflection component is arranged inside the limit rod (510). After the limit rod (510) extends, it drives the limit protrusion (521) to deflect towards the inside and is located at the bottom of the color steel sandwich panel (700) to complete safety limitation.

5. A color steel sandwich panel hoisting device according to claim 4, characterized in that, The limit rod (510) includes a limit base (513) and a telescopic end (518). The deflection component includes a deflection protrusion (517) fixedly connected to the inside of the limit base (513), and a deflection control groove (516) adapted to the deflection protrusion (517) is arranged on the surface of the telescopic end (518).

6. The hoisting device for color steel sandwich panel according to claim 5, characterized in that, A control piston (514) is hermetically and slidably connected to the inner wall of the limit base (513). A control chamber is formed between the control piston (514) and the limit base (513). An expansion and contraction control component (600) filled with control hydraulic fluid is arranged on the inner wall of the clamping plate component (400), and the expansion and contraction control component (600) is communicated with the control chamber.

7. A color steel sandwich panel hoisting device according to claim 1, characterized in that, The scissors frame assembly (300) includes a cross joint (330), the cross joint (330) includes two cross bars (332), and the two cross bars (332) are rotatably connected by a cross rotating shaft (333). The first end of the cross joint (330) is connected to the lifting bracket through a connecting joint (320), the second end is connected to the clamping plate assembly (400), and a telescopic assembly (340) is arranged between the two cross bars (332).

8. A color steel sandwich panel hoisting device according to claim 7, characterized in that, The connecting joint (320) includes two connecting rods that are rotatably connected. A positioning base (310) is arranged at the rotatable connection of the two connecting rods and is connected to the lifting bracket. The two connecting rods are respectively rotatably connected to the corresponding cross bars (332) on the side away from the rotatable connection.

9. The hoisting device for color steel sandwich panel according to claim 8, characterized in that, An extended portion (331) that is bent is further fixed on the outer side of the cross bar (332). The extended portion (331) extends in the outer direction, and the connecting rod is rotatably connected to the extended portion (331).

10. A color steel sandwich panel hoisting device according to any one of claims 1-9, characterized in that, The lifting bracket includes a lifting cross frame (200) and a lifting rope group (100). The lifting rope group (100) includes at least two lifting connection seats (110), and a connecting rope (120) is arranged at the upper end of the lifting connection seat (110).

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