Novel hoisting device

Abstract

The utility model relates to the technical field of steel net rack hoisting, in particular to a novel hoisting device. The net rack fixing device comprises a mounting plate, a hook is fixed to the top of the mounting plate, a clamping mechanism is arranged on the mounting plate and used for clamping a net rack, first rotating motors are fixed to the two ends of the mounting plate respectively, protection mechanisms are arranged at the output ends of the two first rotating motors respectively, and the protection mechanisms are used for fixing the net rack. And the clamping mechanism comprises a transmission roller, a roller, a second rotating motor, a bidirectional threaded rod, a first clamping plate, a limiting block and a fixing steel rope, the transmission roller is fixed to the output end of the first rotating motor, and the transmission roller is rotationally connected with the mounting plate. According to the novel hoisting device provided by the utility model, the protection mechanism can be used for quickly connecting the pipe steel net rack when the clamping mechanism fails, and the steel net rack is prevented from falling off from the hoisting device, so that equipment damage, personnel injury and confusion of a construction site which are possibly caused by falling of an object are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel grid hoisting, in particular to a novel hoisting device. Background Art

[0002] The grid structure is a spatial bar structure. The load-bearing bars are connected through nodes according to a certain rule. The nodes are generally designed to be hinged. The bars mainly bear axial forces. The cross-sectional dimensions of the bars are relatively small. These bars that intersect in space support each other, organically combining the load-bearing bars with the supporting system. Therefore, the material is economical. Due to the regular combination of the structure, a large number of bars and nodes have the same shape and size, which is convenient for factory production and installation on site.

[0003] For example, a Chinese utility model patent (CN213651613U) discloses a steel grid lifting device, including a hook, a bracket connected to the hook, a rotating shaft rotatably connected to the bracket, a driven gear provided on the rotating shaft, a driving gear meshing with the driven gear, the driving gear fixed to the motor, the motor fixed to the bracket, the rotating shaft rotatably connected to the bearing, the bearing fixed to the bracket, a steering support plate provided at the end of the rotating shaft, the end of the rotating shaft rotatably connected to the support plate, the support plate rotatably connected to an automatic telescopic rod, the end of the automatic telescopic rod rotatably connected to the steering support plate, and a clamping claw is provided under the support plate.

[0004] When using the above technology, it was found that the following technical problems exist in the prior art: when the clamp of the above lifting device fails, the hoisted object loses control and may fall from a high altitude, which may also cause serious casualties. For this reason, we designed a new type of lifting device to provide another technical solution to the above technical problem. Utility Model Content

[0005] Based on this, it is necessary to provide a new type of lifting device to address the above-mentioned technical problems. The protection mechanism can quickly take over the steel grid when the clamping mechanism fails to prevent the steel grid from falling off the lifting device, thereby avoiding equipment damage, personal injury and chaos on the construction site caused by falling objects.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A novel lifting device comprises a mounting plate, a hook is fixed on the top of the mounting plate, a clamping mechanism is arranged on the mounting plate, the clamping mechanism is used to clamp a grid, first rotating motors are fixed at both ends of the mounting plate, and a protection mechanism is arranged at the output ends of the two first rotating motors, the protection mechanism is used to fix the grid.

[0008] As a preferred embodiment of the new type of lifting device provided by the utility model, the clamping mechanism includes a transmission roller, a drum, a second rotating motor, a bidirectional threaded rod, a first clamping plate, a limit block and a fixed steel rope, a transmission roller is fixed to the output end of the first rotating motor, the transmission roller is rotatably connected to the mounting plate, a drum is fixed to the outer side of the transmission roller, a second rotating motor is fixed to one end of the drum, a bidirectional threaded rod is fixed to the output end of the second rotating motor, the bidirectional threaded rod is rotatably connected to the drum, both ends of the outer side of the bidirectional threaded rod are threadedly connected to the first clamping plate, the two first clamping plates are slidably connected to the drum, both ends of the bottom of the first clamping plate are fixed with limit blocks, the limit blocks are slidably connected to the drum, and fixed steel ropes are fixed to the inner sides of both ends of the mounting plate.

[0009] As a preferred embodiment of the new type of lifting device provided by the utility model, the protection mechanism includes an electric push rod, a fixed frame, a movable plate, a second clamping plate and a connecting plate, two electric push rods are fixed on the inner side of the mounting plate, the outer side of the telescopic end of the electric push rod is slidably connected with a fixed frame, the fixed frame is fixed to the mounting plate, the telescopic end of the electric push rod is fixed with a movable plate, the two sides of the inner side of the fixed frame are rotatably connected with the second clamping plate, the two sides of the inner side of the movable plate are rotatably connected with connecting plates, and the connecting plates are rotatably connected to the corresponding second clamping plates.

[0010] As a preferred implementation of the novel lifting device provided by the utility model, a controller is arranged on the top of the mounting plate, and the controller is electrically connected to the two electric push rods.

[0011] As a preferred embodiment of the novel lifting device provided by the utility model, a power supply is arranged inside the mounting plate, and the power supply is electrically connected to the first rotating motor, the second rotating motor, the electric push rod and the controller.

[0012] As a preferred implementation of the novel lifting device provided by the utility model, a plurality of anti-slip plates are fixed to the bottom of the mounting plate.

[0013] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0014] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0015] The utility model provides a novel lifting device, in which a protection mechanism can quickly take over a steel grid frame when a clamping mechanism fails, preventing the steel grid frame from falling off the lifting device, thereby avoiding equipment damage, personal injury and chaos on the construction site that may be caused by falling objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the first rotating motor and the transmission roller of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the first clamping plate and the limiting block of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure of the movable plate and the connecting plate of the utility model.

[0021] In the figure: 1. mounting plate; 2. hook; 3. first rotating motor; 4. transmission roller; 5. roller; 6. second rotating motor; 7. bidirectional threaded rod; 8. first clamping plate; 9. limit block; 10. fixed steel rope; 11. electric push rod; 12. fixed frame; 13. moving plate; 14. second clamping plate; 15. connecting plate; 16. controller; 17. anti-slip plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] As described in the background art, when the clamping jaws of the above-mentioned hoisting device fail, the hoisted object loses control and may fall from a high altitude, which may also cause serious casualties.

[0024] In order to solve this technical problem, the utility model provides a novel lifting device.

[0025] Specifically, please refer to Figure 1-Figure 4 A new type of lifting device specifically includes: a mounting plate 1, a hook 2 is fixed on the top of the mounting plate 1, a clamping mechanism is arranged on the mounting plate 1, the clamping mechanism is used to clamp the grid, first rotating motors 3 are fixed at both ends of the mounting plate 1, and the output ends of the two first rotating motors 3 are provided with protection mechanisms, which are used to fix the grid.

[0026] The utility model provides a novel lifting device, in which a protection mechanism can quickly take over a steel grid frame when a clamping mechanism fails, preventing the steel grid frame from falling off the lifting device, thereby avoiding equipment damage, personal injury and chaos on the construction site that may be caused by falling objects.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] Embodiment 1

[0030] Reference Figure 1-Figure 3 A new type of lifting device includes a mounting plate 1, a hook 2 is fixed on the top of the mounting plate 1, a clamping mechanism is arranged on the mounting plate 1, the clamping mechanism is used to clamp the grid, first rotating motors 3 are fixed at both ends of the mounting plate 1, and the output ends of the two first rotating motors 3 are provided with protection mechanisms, which are used to fix the grid.

[0031] The clamping mechanism includes a transmission roller 4, a drum 5, a second rotating motor 6, a bidirectional threaded rod 7, a first clamping plate 8, a limit block 9 and a fixed steel rope 10. The output end of the first rotating motor 3 is fixed with a transmission roller 4, and the transmission roller 4 is rotatably connected to the mounting plate 1. The outer side of the transmission roller 4 is fixed with a drum 5, and one end of the drum 5 is fixed with a second rotating motor 6. The output end of the second rotating motor 6 is fixed with a bidirectional threaded rod 7, and the bidirectional threaded rod 7 is rotatably connected to the drum 5. Both ends of the outer side of the bidirectional threaded rod 7 are threadedly connected with the first clamping plate 8, and the two first clamping plates 8 are slidably connected to the drum 5. Both ends of the bottom of the first clamping plate 8 are fixed with limit blocks 9, and the limit blocks 9 are slidably connected to the drum 5. Fixed steel ropes 10 are fixed to the inner sides of both ends of the mounting plate 1.

[0032] The clamping mechanism can quickly and accurately fix the steel grid, reducing the time and effort required for manual adjustment and fixing. This helps to improve the efficiency of the lifting operation and reduce the overall construction time.

[0033] Embodiment 2

[0034] Reference Figure 1 and Figure 4A novel lifting device, the protection mechanism includes an electric push rod 11, a fixed frame 12, a movable plate 13, a second clamping plate 14 and a connecting plate 15, two electric push rods 11 are fixed on the inner side of the mounting plate 1, the outer side of the telescopic end of the electric push rod 11 is slidably connected with the fixed frame 12, the fixed frame 12 is fixed to the mounting plate 1, the telescopic end of the electric push rod 11 is fixed with the movable plate 13, the two sides of the inner side of the fixed frame 12 are rotatably connected with the second clamping plate 14, the two sides of the inner side of the movable plate 13 are rotatably connected with the connecting plate 15, and the connecting plate 15 is rotatably connected with the corresponding second clamping plate 14;

[0035] The protection mechanism can quickly take over the steel grid when the clamping mechanism fails, preventing the steel grid from falling off the lifting device, thereby avoiding equipment damage, personal injury and chaos on the construction site that may be caused by falling objects.

[0036] A controller 16 is arranged on the top of the mounting plate 1, and the controller 16 is electrically connected to the two electric push rods 11. The model of the controller 16 is AT89C52. The controller 16 can ensure that the two electric push rods 11 start to extend and retract at the same time after receiving the command, and the speed and distance of the extension and retraction can be precisely controlled. The high degree of synchronization and precision are helpful to achieve the precise positioning and placement of the steel grid by the clamping mechanism. A power supply is arranged inside the mounting plate 1, and the power supply is electrically connected to the first rotating motor 3, the second rotating motor 6, the electric push rod 11 and the controller 16. The power supply provides power to the first rotating motor 3, the second rotating motor 6, the electric push rod 11 and the controller 16. A plurality of anti-slip plates 17 are fixed to the bottom of the mounting plate 1. The anti-slip plates 17 are made of rubber. The anti-slip plates 17 fit tightly with the steel grid to prevent the steel grid from sliding during the lifting process, which greatly reduces the risk of safety accidents caused by accidental sliding.

[0037] The use process of a novel lifting device provided by the utility model is as follows: fix the hook 2 on the tower crane, then place the steel grid between the two second clamping plates 14, at this time the anti-slide plate 17 is in contact with the steel pipe grid, and send an electric signal to the two electric push rods 11 through the controller 16. When the two electric push rods 11 receive the electric signal sent by the controller 16, they are started at the same time. Since the telescopic end of the electric push rod 11 is fixed to the moving plate 13, the movement of the telescopic end of the electric push rod 11 drives the moving plate 13 to move, so that the connecting plate 15 rotatably connected to the moving plate 13 moves along, and the connecting plate 15 is rotatably connected to the second clamping plate 14 and the second clamping plate 14 is rotatably connected to the fixed frame 12, so that the movement of the connecting plate 15 drives the second clamping plate 14 to rotate, so that the two second clamping plates 14 clamp the steel pipe grid;

[0038] The clamping mechanism can quickly and accurately fix the steel grid, reducing the time and effort required for manual adjustment and fixing. This helps to improve the efficiency of the lifting operation and reduce the overall construction time;

[0039] Pass one end of the fixed steel rope 10 through the steel grid and place it between the two first clamping plates 8, start the second rotating motor 6, and the output end of the second rotating motor 6 drives the bidirectional threaded rod 7 to rotate. Since the two first clamping plates 8 are threadedly connected with the bidirectional threaded rod 7, the rotation of the bidirectional threaded rod 7 drives the two first clamping plates 8 to approach each other, and the end of the fixed steel rope 10 passing through the steel grid is firmly clamped. At this time, start the first rotating motor 3, and the output end of the first rotating motor 3 drives the transmission roller 4 to rotate, so that the drum 5 fixed to the transmission roller 4 rotates, so that the fixed steel rope 10 clamped on the drum 5 is wound around the drum 5. At this time, the fixed steel rope 10 is tightly fitted with the steel grid, and the steel grid is fixed on the device;

[0040] The protection mechanism can quickly take over the steel grid when the clamping mechanism fails, preventing the steel grid from falling off the lifting device, thereby avoiding equipment damage, personal injury and chaos on the construction site that may be caused by falling objects.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A new type of lifting device, characterized in that: The invention comprises a mounting plate (1), a hook (2) being fixed on the top of the mounting plate (1), a clamping mechanism being arranged on the mounting plate (1), the clamping mechanism being used for clamping a grid frame, first rotating motors (3) being fixed at both ends of the mounting plate (1), and protective mechanisms being arranged at the output ends of the two first rotating motors (3), the protective mechanisms being used for fixing the grid frame.

2. A novel lifting device according to claim 1, characterized in that: The clamping mechanism comprises a transmission roller (4), a drum (5), a second rotating motor (6), a bidirectional threaded rod (7), a first clamping plate (8), a limit block (9) and a fixed steel rope (10); the output end of the first rotating motor (3) is fixed with a transmission roller (4); the transmission roller (4) is rotatably connected to the mounting plate (1); the outer side of the transmission roller (4) is fixed with a drum (5); one end of the drum (5) is fixed with a second rotating motor (6); the output end of the second rotating motor (6) is fixed with a bidirectional threaded rod (7); the bidirectional threaded rod (7) is rotatably connected to the drum (5); both ends of the outer side of the bidirectional threaded rod (7) are threadedly connected with the first clamping plate (8); the two first clamping plates (8) are slidably connected to the drum (5); both ends of the bottom of the first clamping plate (8) are fixed with limit blocks (9); the limit blocks (9) are slidably connected to the drum (5); and fixed steel ropes (10) are fixed to the inner sides of both ends of the mounting plate (1).

3. A novel lifting device according to claim 1, characterized in that: The protection mechanism comprises an electric push rod (11), a fixed frame (12), a movable plate (13), a second clamping plate (14) and a connecting plate (15); two electric push rods (11) are fixed on the inner side of the mounting plate (1); the outer side of the telescopic end of the electric push rod (11) is slidably connected with the fixed frame (12); the fixed frame (12) is fixed to the mounting plate (1); the telescopic end of the electric push rod (11) is fixed with the movable plate (13); the two sides of the inner side of the fixed frame (12) are rotatably connected with the second clamping plate (14); the two sides of the inner side of the movable plate (13) are rotatably connected with the connecting plate (15); the connecting plate (15) is rotatably connected with the corresponding second clamping plate (14).

4. A novel lifting device according to claim 1, characterized in that: A controller (16) is arranged on the top of the mounting plate (1), and the controller (16) is electrically connected to the two electric push rods (11).

5. A novel lifting device according to claim 1, characterized in that: A power source is provided inside the mounting plate (1), and the power source is electrically connected to the first rotating motor (3), the second rotating motor (6), the electric push rod (11) and the controller (16).

6. A novel lifting device according to claim 1, characterized in that: A plurality of second clamping plates (14) are fixed to the bottom of the mounting plate (1).

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