Hoisting device

Abstract

The utility model relates to the technical field of wharf prefabricated part hoisting, in particular to a hoisting device which comprises a hoisting plate, four sliding grooves are formed in the outer surface of the hoisting plate, side plates are fixedly installed on the two sides of the top of the hoisting plate, installation grooves are formed in the two side plates, and an adjusting structure is fixedly installed on the top of the hoisting plate. Through the adjusting structure, the adjusting structure is adjusted according to the size of a prefabricated part, a servo motor is started, an output shaft of the servo motor drives a bidirectional lead screw to rotate, sliding plates on the two sides can slide in sliding grooves at the same time due to limiting of sliding rods on the two sides, and therefore the two sliding plates can drive four fixed L-shaped plates to expand by a certain distance; and then the prefabricated part is clamped in gaps between four fixing L-shaped plates and a hoisting plate, then a servo motor is started again to enable sliding plates on the two sides to move towards the inner side so as to clamp the prefabricated part, and therefore the purpose that flexible adjustment can be conducted according to the size of the prefabricated part is achieved, and the flexibility and hoisting efficiency of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology for prefabricated components at wharves, specifically a hoisting device. Background Technology

[0002] Precast dock components, also known as precast dock parts, refer to building components that are prefabricated in factories or specific locations, possessing certain specifications and dimensions, and designed for dock construction. These precast components can be assembled and installed according to requirements and are widely used in the construction of various types of docks. The production process of precast dock components typically includes steps such as formwork fabrication, rebar tying, concrete pouring, curing, and demolding. Among these, formwork fabrication is a critical step, requiring accurate dimensions and tight joints to prevent grout leakage and ensure the surface quality of the components. During concrete pouring, strict control of layer height and vibration point arrangement is necessary to avoid under-vibration or over-vibration, ensuring the density and strength of the concrete.

[0003] The existing hoisting structures used for transporting prefabricated components after production at the wharf have certain shortcomings in use: existing hoisting devices typically use steel cables to bind and fix the prefabricated components, which has a high risk factor and cannot be flexibly adjusted according to the different sizes of the prefabricated components. Construction workers may need to spend more time and effort adjusting the hoisting position and angle during the hoisting process, and may even need to try multiple times to complete the hoisting task. This not only increases the construction difficulty but also reduces the hoisting efficiency, thereby affecting the progress of the entire wharf construction. Based on the shortcomings of the existing technology, this utility model designs a hoisting device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hoisting device that has the advantage of being flexibly adjustable according to the size of the prefabricated components.

[0005] This utility model provides the following technical solution: a hoisting device, including a hoisting plate, four sliding grooves on the outer surface of the hoisting plate, side plates fixedly installed on both sides of the top of the hoisting plate, mounting grooves inside two of the side plates, and an adjustment structure fixedly installed on the top of the hoisting plate; the adjustment structure includes two support blocks and two sets of side blocks, a bidirectional lead screw rotatably installed between the two support blocks, sliding plates threaded on both sides of the outer surface of the bidirectional lead screw, four fixed L-plates fixedly installed at the bottom of the two sliding plates, a fixed ring fixedly installed inside one of the mounting grooves, a servo motor fixedly installed inside the fixed ring, one end of the output shaft of the servo motor fixedly connected to the bidirectional lead screw, and sliding rods fixedly installed between the two sets of side blocks, with the two sliding rods slidably connected to the sliding plates.

[0006] As a preferred embodiment of this utility model, the four fixed L-plates are internally fixed with fastening structures, and the four fastening structures include threaded rods and limiting rods.

[0007] As a preferred embodiment of this utility model, the four threaded rods are threadedly connected to the fixed L-plate, and a throttle handle is fixedly installed at one end of each of the four threaded rods.

[0008] As a preferred technical solution of this utility model, a top plate is rotatably installed on the top of the four threaded rods, and the four top plates are fixedly connected to the limiting rods.

[0009] As a preferred embodiment of this utility model, the four limiting rods are movably connected to the fixed L-plate.

[0010] As a preferred embodiment of this utility model, side supports are fixedly installed on both sides of the top of the hoisting plate, and a hanger is fixedly installed on the top of the two side supports.

[0011] As a preferred embodiment of this utility model, a lifting ring is fixedly installed on the top of the hanger.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This hoisting device, through its adjustable structure, allows for adjustments based on the size of the precast component during hoisting. By activating a servo motor, its output shaft drives a bidirectional lead screw to rotate. Due to the limiting effect of the sliding rods on both sides, the sliding plates on both sides can slide simultaneously within the sliding groove. This allows the two sliding plates to extend the distance between the four fixed L-plates, thus securing the precast component in the gap between the four fixed L-plates and the hoisting plate. The servo motor is then activated again to move the sliding plates on both sides inward, further securing the precast component. This achieves the goal of flexible adjustment based on the size of the precast component, improving the device's flexibility and hoisting efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the slide groove structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the adjustment structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the side plate structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the fastening structure of this utility model.

[0019] In the diagram: 1. Lifting plate; 2. Side bracket; 3. Hanger; 4. Lifting ring; 5. Slide groove; 6. Side plate; 61. Mounting groove; 7. Adjustment structure; 71. Support block; 72. Two-way lead screw; 73. Sliding plate; 74. Fixing ring; 75. Servo motor; 76. Side block; 77. Slide rod; 78. Fixing L-plate; 8. Fastening structure; 81. Threaded rod; 82. Thruster; 83. Limiting rod; 84. Top plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A hoisting device includes a hoisting plate 1. Four sliding grooves 5 are formed on the outer surface of the hoisting plate 1. Side plates 6 are fixedly installed on both sides of the top of the hoisting plate 1. Installation grooves 61 are formed inside the two side plates 6. An adjustment structure 7 is fixedly installed on the top of the hoisting plate 1. The adjustment structure 7 includes two support blocks 71 and two sets of side blocks 76. A bidirectional lead screw 72 is rotatably installed between the two support blocks 71. Sliding plates 73 are threaded onto both sides of the outer surface of the bidirectional lead screw 72. Four fixing L-plates 78 are fixedly installed at the bottom of the two sliding plates 73. A fixing ring 74 is fixedly installed inside one installation groove 61. A servo motor 75 is fixedly installed inside the fixing ring 74. One end of the output shaft of the servo motor 75 is fixedly connected to the bidirectional lead screw 72. Sliding rods 77 are fixedly installed between the two sets of side blocks 76. The two sliding rods 77 are slidably connected to the sliding plates 73.

[0022] Please see Figure 4-5 Four fixed L-plates 78 are internally fitted with fastening structures 8, each including threaded rods 81 and limiting rods 83. The four threaded rods 81 are threadedly connected to the fixed L-plates 78, and a handle 82 is fixedly installed at one end of each threaded rod 81. Top plates 84 are rotatably mounted on the tops of the four threaded rods 81, and the four top plates 84 are fixedly connected to the limiting rods 83. The four limiting rods 83 are movably connected to the fixed L-plates 78.

[0023] After the precast component is clamped and fixed by the four fixed L plates 78, the threaded rod 81 is rotated by turning the four handles 82 at once. Due to the limiting rod 83, the threaded rod 81 can push the top plate 84 against the precast component, thereby further reinforcing it.

[0024] Please see Figure 1Side supports 2 are fixedly installed on both sides of the top of the lifting plate 1, and hangers 3 are fixedly installed on the top of the two side supports 2. Lifting rings 4 are fixedly installed on the top of the hangers 3.

[0025] Working principle: When a hoisting device is used, the adjustment structure 7 is first adjusted according to the size of the precast component. By starting the servo motor 75, its output shaft drives the bidirectional lead screw 72 to rotate. Due to the limiting of the sliding rods 77 on both sides, the sliding plates 73 on both sides can slide simultaneously inside the sliding groove 5. This allows the two sliding plates 73 to drive the four fixed L plates 78 to expand a certain distance. Then, the precast component is stuck in the gap between the four fixed L plates 78 and the hoisting plate 1. Then, the servo motor 75 is started again to move the sliding plates 73 on both sides inward to hold the precast component in place. After the precast component is clamped and fixed by the four fixed L plates 78, the threaded rod 81 is rotated by turning the four throttles 82 at once. Due to the limiting of the limiting rod 83, the threaded rod 81 can push the top plate 84 against the precast component to further reinforce it. Finally, the hoisting ring 4 is connected to the crane to carry out the hoisting and transportation work.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting device comprising a hoisting plate (1), characterized in that: The outer surface of the hoisting plate (1) is provided with four sliding grooves (5), and the top of the hoisting plate (1) is fixedly provided with side plates (6) on both sides, and the inside of the two side plates (6) is provided with mounting grooves (61), and the top of the hoisting plate (1) is fixedly provided with adjusting structure (7); The adjusting structure (7) includes two supporting blocks (71) and two groups of side blocks (76), two supporting blocks (71) are rotatably installed between the two-way screw rod (72), the outer surface of the two-way screw rod (72) is rotatably installed on both sides of the sliding plate (73), the bottom of the two sliding plates (73) is fixedly installed with four fixed L plates (78), one inside the mounting groove (61) is fixedly installed with a fixed ring (74), the inside of the fixed ring (74) is fixedly installed with a servo motor (75), the output shaft of the servo motor (75) is fixedly connected with the two-way screw rod (72), and the two groups of side blocks (76) are fixedly installed between the two groups of side blocks (76). Two sliding rods (77) are slidably connected with the sliding plates (73).

2. A hoisting device according to claim 1, characterised in that: Four fixed L plates (78) are fixedly installed in the inside of the four fixed L plates (78), and four fastening structures (8) are fixedly installed in the inside of the four fixed L plates (78).

3. A hoisting device according to claim 2, characterised in that: Four threaded rods (81) are threadedly connected with the fixed L plates (78), and four threaded rods (81) are fixedly installed at one end of the four threaded rods (81).

4. A hoisting device according to claim 2, characterised in that: Four threaded rods (81) are rotatably installed on the top of the four threaded rods (81), and four top plates (84) are fixedly connected with the limiting rods (83).

5. A hoisting device according to claim 4, characterised in that: Four limiting rods (83) are movably connected with the fixed L plates (78).

6. A hoisting device according to claim 1, characterized in that: The top of the hoisting plate (1) is fixedly provided with side supports (2) on both sides, and the top of the two side supports (2) is fixedly provided with a hanging bracket (3).

7. A hoisting device according to claim 6, characterised in that: The top of the hanging bracket (3) is fixedly provided with a lifting ring (4).

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