Lifting device for roof net rack

Abstract

The utility model discloses a roof net rack lifting device which comprises a first support, a second support, a third support and a connecting support, the first support, the second support and the third support are connected into a whole through the connecting support, and a first installation table and a second installation table are arranged on the first support and the second support respectively. And a plurality of hoisting devices are arranged on the first mounting table and the second mounting table. The floor area of the lifting device in the horizontal direction is small, the lifting device can be installed on a narrow site of a construction area through the first support, the second support and the third support, and the first support, the second support and the third support form a stable lifting support body through the connecting support. And by matching with a plurality of hoisting devices arranged at the tops of the first bracket and the second bracket, large equipment or a steel structure roof net rack in a construction area can be hoisted.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a lifting device for a roof grid. Background Art

[0002] For the hoisting construction of traditional steel structure roof grids, truck cranes are usually used as the main equipment. This hoisting construction not only involves the invocation of a large number of mechanical equipment, but also requires a lot of human resources. In addition, the truck crane construction method requires the site to have enough space to ensure the smooth progress of the hoisting operation. However, in the case of a narrow site, due to the volume and operation radius limitations of the truck crane, this method is often unable to be used for construction, which undoubtedly increases the construction difficulty and cost. Therefore, it is necessary to propose a lifting device for a roof grid that can be used in a narrow site. Summary of the Invention

[0003] In view of the above deficiencies of the prior art, the utility model provides a lifting device for a roof grid.

[0004] To achieve the above invention purpose, the technical solution adopted by the utility model is as follows: it includes a first bracket, a second bracket, a third bracket and a connecting bracket. The first bracket, the third bracket and the second bracket are arranged in sequence. The first bracket, the second bracket and the third bracket are connected into a whole through the connecting bracket. Rectangular mounting openings for mounting the connecting bracket are arranged on the first bracket, the second bracket and the third bracket. A first mounting platform is fixedly arranged at the top of the first bracket, and a second mounting platform is fixed on the second bracket. A plurality of lifting devices are arranged on both the first mounting platform and the second mounting platform.

[0005] Further, the structures of the first bracket, the second bracket, the third bracket and the connecting bracket are the same. The first bracket includes four main beams arranged in parallel. Adjacent main beams are connected by a plurality of horizontal connecting beams. The plurality of horizontal connecting beams connect the four main beams to form a regular quadrangular prism.

[0006] Further, an inclined reinforcing beam is fixed between two adjacent horizontal connecting beams on the same side. The inclined reinforcing beam and the two adjacent horizontal connecting beams form a Z shape.

[0007] Further, the end of the connecting bracket is in clearance fit with the rectangular mounting opening, and the rectangular mounting opening is welded and fixed to the first bracket, the second bracket and the third bracket.

[0008] Further, four lifting devices are arranged on both the first mounting platform and the second mounting platform, and the four lifting devices are distributed at the four corners of the first mounting platform.

[0009] Further, the lifting device is a winch, an electric winch or a hydraulic winch.

[0010] Further, a number of support discs are provided at the bottoms of the first support, the second support, and the third support, and the support discs are circular or rectangular.

[0011] Further, a number of mounting holes are provided on the support discs, and the number of mounting holes are distributed on the side of the support discs.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model has a small floor area in the horizontal direction. The lifting device can be installed in a narrow construction area through the first support, the second support, and the third support. The first support, the second support, and the third support form a stable lifting support body through the connecting support. With a number of lifting devices provided at the tops of the first support and the second support, lifting operations can be carried out on large equipment or steel structure roof grids in the construction area; the lifting device can achieve more efficient lifting operations, without being restricted by the site, and can effectively avoid the frequent use of large mechanical equipment such as truck cranes, improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the present utility model;

[0015] Figure 2 is the top view of the present utility model;

[0016] Figure 3 is the left view of the present utility model;

[0017] Figure 4 is the partial structural schematic diagram of the first support;

[0018] Among them, the symbols of each component are as follows:

[0019] 1. First support; 11. Main beam; 12. Horizontal connecting beam; 13. Diagonal reinforcement beam;

[0020] 2. Second support; 3. Third support; 4. Connecting support; 5. First mounting platform; 6. Second mounting platform; 7. Lifting device; 9. Rectangular mounting opening; 10. Support disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following describes the specific embodiments of the present utility model to facilitate those skilled in the art to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present utility model are within the scope of protection.

[0022] As Figure 1As shown in the figure, the lifting device of the roof grid includes a first bracket 1, a second bracket 2, a third bracket 3 and a connecting bracket 4. The first bracket 1, the third bracket 3 and the second bracket 2 are arranged in sequence, and the third bracket 3 is arranged between the first bracket 1 and the second bracket 2. The distances between the third bracket 3 and the first bracket 1 and the second bracket 2 are the same. The first bracket 1, the second bracket 2 and the third bracket 3 are connected into a whole by the connecting bracket 4. Rectangular mounting openings 9 for mounting the connecting bracket 4 are provided on the first bracket 1, the second bracket 2 and the third bracket 3. The end of the connecting bracket 4 is in clearance fit with the rectangular mounting opening 9, and the rectangular mounting opening 9 is welded and fixed to the first bracket 1, the second bracket 2 and the third bracket 3. A first mounting platform 5 is fixed to the top of the first bracket 1, and a second mounting platform 6 is fixed to the second bracket 2. A number of lifting devices 7 are provided on both the first mounting platform 5 and the second mounting platform 6. The first mounting platform 5 and the second mounting platform 6 are respectively welded and fixed to the tops of the first bracket 1 and the second bracket 2. The first mounting platform 5 and the second mounting platform 6 can provide a better mounting platform for the lifting devices 7. The first mounting platform 5 and the second mounting platform 6 are preferably steel plates and are welded and fixed to the tops of the first bracket 1 and the second bracket 2. The first bracket 1, the second bracket 2, the third bracket 3 and the connecting bracket 4 can also be spliced in multiple sections, for example, adopting the segmented structure of the tower crane tower body, so that the first bracket 1, the second bracket 2, the third bracket 3 and the connecting bracket 4 are convenient for installation and convenient for transportation.

[0023] As Figure 2 shown, there are four lifting devices 7 provided on both the first mounting platform 5 and the second mounting platform 6, and the four lifting devices 7 are distributed at the four corners of the first mounting platform 5. The lifting device 7 is preferably one of a winch, an electric winch or a hydraulic winch. For example, by using a winch as the lifting device 7, the equipment or building materials within the coverage area of the lifting device of the roof grid can be lifted and transferred, greatly improving the construction operation efficiency.

[0024] As Figure 3 and 4 shown, the structures of the first bracket 1, the second bracket 2, the third bracket 3 and the connecting bracket 4 are the same. The first bracket 1 includes four main beams 11 arranged in parallel. Adjacent main beams 11 are connected by a number of horizontal connecting beams 12, and the number of horizontal connecting beams 12 connects the four main beams 11 to form a regular quadrangular prism.

[0025] In this embodiment, an inclined reinforcing beam 13 is fixed between two adjacent horizontal connecting beams 12 on the same side, and the inclined reinforcing beam 13 forms a Z shape with the two adjacent horizontal connecting beams 12. The inclined reinforcing beam 13 can further enhance the structural strength between the adjacent horizontal connecting beams 12, thereby effectively enhancing the structural strength of the first bracket 1, the second bracket 2 and the third bracket 3.

[0026] In this embodiment, a number of support discs 10 are provided at the bottoms of the first support 1, the second support 2 and the third support 3, and the support discs 10 are circular or rectangular. The support disc 10 can be provided as one, which is welded and fixed to the bottom of the first support 1, or can be provided as four, and the four support discs 10 are respectively welded to the bottom of the main beam 11 of the first support 1.

[0027] In this embodiment, a number of mounting holes are provided on the support disc 10, and the number of mounting holes are distributed on the side of the support disc 10. By matching the mounting holes of the support disc 10 with expansion bolts, the first support 1, the second support 2 and the third support 3 can be installed in the required construction area, so as to facilitate the hoisting operation of equipment or building materials in the construction area by using the lifting device of the roof grid.

[0028] Working process and principle: Through the support disc 10, the large lifting device is installed in the required construction area, and expansion bolts can also be used to strengthen the fixation of the support disc 10. After the large lifting device is installed in the construction area, the large equipment or the steel structure roof grid can be hoisted by the steel wire ropes of the two lifting devices 7 on one side. After the hoisting operation in this area is completed, the large lifting device can be moved to the next construction area.

Claims

1. A lifting device for a roof grid, characterized in that: The invention comprises a first bracket (1), a second bracket (2), a third bracket (3) and a connecting bracket (4); the first bracket (1), the third bracket (3) and the second bracket (2) are arranged in sequence; the first bracket (1), the second bracket (2) and the third bracket (3) are connected into a whole through the connecting bracket (4); the first bracket (1), the second bracket (2) and the third bracket (3) are provided with a rectangular mounting opening (9) for mounting the connecting bracket (4); a first mounting platform (5) is fixed on the top of the first bracket (1); a second mounting platform (6) is fixed on the second bracket (2); and a plurality of lifting devices (7) are provided on the first mounting platform (5) and the second mounting platform (6).

2. The lifting device for the roof grid according to claim 1, characterized in that: The structures of the first bracket (1), the second bracket (2), the third bracket (3) and the connecting bracket (4) are all the same. The first bracket (1) comprises four main beams (11) arranged in parallel. Adjacent main beams (11) are connected by a plurality of horizontal connecting beams (12). The plurality of horizontal connecting beams (12) connect the four main beams (11) to form a regular tetrahedral prism.

3. The lifting device for the roof grid according to claim 2, characterized in that: An oblique reinforcement beam (13) is fixed between two adjacent horizontal connection beams (12) located on the same side, and a Z shape is formed between the oblique reinforcement beam (13) and the two adjacent horizontal connection beams (12).

4. The lifting device for the roof grid according to claim 1, characterized in that: The end of the connecting bracket (4) is clearance-matched with the rectangular mounting opening (9), and the rectangular mounting opening (9) is welded and fixed to the first bracket (1), the second bracket (2), and the third bracket (3).

5. The lifting device for the roof grid according to claim 1, characterized in that: Four lifting devices (7) are provided on the first mounting platform (5) and the second mounting platform (6), and the four lifting devices (7) are distributed at the four corners of the first mounting platform (5).

6. The lifting device for the roof grid according to claim 1, characterized in that: The lifting device (7) is a winch, an electric winch or a hydraulic winch.

7. The lifting device for the roof grid according to claim 1, characterized in that: A plurality of support plates (10) are arranged at the bottom of the first bracket (1), the second bracket (2) and the third bracket (3); the support plates (10) are circular or rectangular.

8. The lifting device for the roof grid according to claim 7, characterized in that: The support plate (10) is provided with a plurality of mounting holes, and the plurality of mounting holes are distributed on the side of the support plate (10).

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