Tray type lifting device for building construction

Abstract

The utility model discloses a tray type lifting device for building construction, belongs to the technical field of building construction, and solves the problem that the lifting height achieved by an existing lifting device is low. The device specifically comprises a fixing frame, a lifting assembly and a gear type lifting mechanism are arranged on the fixing frame, and the gear type lifting mechanism is movably connected with the lifting assembly; a lifting tray and a winding type lifting mechanism are arranged on the lifting assembly, and the winding type lifting mechanism is movably connected with the lifting tray. During operation, the lifting assembly is lowered to the lowest position of the fixing frame through the gear type lifting mechanism, and then the lifting tray is lowered to the lowest position of the lifting assembly through the winding type lifting mechanism; then goods are loaded into the lifting tray; and finally, the gear type lifting mechanism is used for driving the lifting assembly to lift, the winding type lifting mechanism is used for driving the lifting tray to lift again, two-time lifting of the lifting tray is achieved, the lifting height is large, and the lifting device is suitable for building scenes with the high requirement for the lifting height.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a pallet-type lifting device for building construction. Background Technology

[0002] During construction, vertical transportation of personnel and materials is often required, which frequently necessitates the use of lifting devices. For example, during home renovations, lifting devices are used to raise tools, paint, or ceiling panels to a suitable height for easy access by workers. When loading goods onto trucks, lifting devices are used to elevate the goods to the same height as the truck before workers can move them onto the truck, reducing the need for workers to lift goods upwards and significantly lowering their workload.

[0003] A pallet-type lifting device for construction is disclosed in Chinese utility model patent with authorization announcement number CN222757859U. This patent uses a vertical lifting mechanism to lift the pallet. In the vertical lifting mechanism, the pallet is moved by the rotation of the chain. Therefore, the height of the pallet is only the height of the chain in the vertical direction. The lifting height range is small and the applicable scenarios are limited.

[0004] A pallet-type construction hoist is disclosed in Chinese utility model patent with authorization announcement number CN209291869U. This patent also uses a chain to drive the pallet to move up and down, and the lifting height is relatively low.

[0005] Therefore, existing lifting devices can only lift the pallet once, with a small lifting height range, and cannot be used in building scenarios with high lifting height requirements. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pallet-type lifting device for construction, which solves the problem of the low lifting height achieved by existing lifting devices.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A pallet-type lifting device for construction includes a fixed frame, on which a lifting component and a gear-type lifting mechanism are mounted, the gear-type lifting mechanism and the lifting component being movably connected; the lifting component is provided with a lifting pallet and a winding lifting mechanism, the winding lifting mechanism and the lifting pallet being movably connected.

[0009] In this solution, during operation, the lifting assembly is first lowered to the lowest position of the fixed frame using a gear-type lifting mechanism, and then the lifting pallet is lowered to the lowest position of the lifting assembly using a winding lifting mechanism. Goods are then loaded into the lifting pallet. Finally, the gear-type lifting mechanism drives the lifting assembly to rise, and the winding lifting mechanism drives the lifting pallet to rise again, achieving two lifts of the lifting pallet. The lifting height is relatively high, making it suitable for construction scenarios with high requirements for lifting height.

[0010] Furthermore, the mounting frame includes a base plate on which four fixed support columns are mounted;

[0011] The lifting assembly includes four lifting columns, which are slidably connected to four fixed columns via four first slide rails; each lifting column has a rack on its side wall; and the gear-type lifting mechanism is connected to the rack drive.

[0012] In this solution, the lifting support is slidably connected to the fixed support via the first slide rail, which ensures that the lifting support slides stably along the fixed support. Even if the lifting support rises to a higher position, it can still be stably connected to the fixed support under the limit of the four first slide rails.

[0013] Furthermore, the gear-type lifting mechanism includes a first motor, which is mounted on a fixed support; an output gear is provided on the output shaft of the first motor, which meshes with a transmission gear, and the transmission gear is fixed on a transmission shaft, which is mounted on a bearing seat of the fixed support; a drive gear is provided at the end of the transmission shaft, which meshes with a rack.

[0014] In this design, the power output from the first motor is transmitted sequentially to the rack through the output gear, transmission gear, and drive gear, thereby driving the rack and the lifting column to move up and down as a whole. The design of the transmission shaft allows one first motor to drive two lifting columns on the same side to move up and down synchronously, saving costs.

[0015] Furthermore, drive gears are provided at both ends of the drive shaft, and the two drive gears are respectively engaged with two racks on the same side.

[0016] Furthermore, the winding lifting mechanism includes a mounting plate, which is fixed to the top of the lifting support column; a second motor is mounted on the mounting plate, and the output shaft of the second motor is connected to the drive shaft through a reduction gear set. A tensioning wheel is coaxially connected to the drive shaft, and a steel wire rope is wound on the tensioning wheel. The end of the steel wire rope is connected to the lifting tray.

[0017] In this scheme, the second motor drives the drive shaft to rotate through the reduction gear set. As the drive shaft rotates, it drives the tensioning wheel to rotate. During the rotation, the tensioning wheel winds the wire rope around it. The wire rope drives the lifting pallet to move up and down, realizing the secondary lifting of the lifting pallet.

[0018] Furthermore, the lifting pallet includes a pallet body, with the end of the steel wire rope connected to the pallet body; two reinforcing plates are respectively provided on both sides of the pallet body, and sliders are provided on both reinforcing plates; a second slide rail is provided on the inner side of the lifting support, and the reinforcing plates are slidably connected.

[0019] In this solution, the pallet body is slidably connected to the second slide rail of the lifting support by a slider on the reinforcing plate, thus achieving smooth lifting and lowering of the pallet body.

[0020] Furthermore, the reinforcing plate has a threaded hole, a fastening bolt is installed in the threaded hole, and a fastening plate is provided on the fastening bolt; a clamping groove is provided on the side of the fastening plate near the reinforcing plate, and the end of the wire rope is clamped in the clamping groove between the fastening plate and the reinforcing plate.

[0021] In this solution, fastening bolts are used to fix the fastening plate to the reinforcing plate, while the wire rope is clamped in the fastening groove, resulting in high connection strength and simple installation.

[0022] Furthermore, the winding lifting mechanism is provided in two sets, with the steel wire ropes of the two sets of winding lifting mechanisms respectively connected to two opposite corners of the pallet body.

[0023] The beneficial effects of this utility model are:

[0024] In the pallet-type construction lifting device provided by this utility model, the gear-type lifting mechanism drives the lifting column to perform a primary lifting operation via a rack on the lifting column. During lifting, the winding lifting mechanism on the lifting column and the lifting pallet are raised synchronously. After the initial lifting, the winding lifting mechanism drives the lifting pallet to perform a secondary lifting operation by winding a steel wire rope around a tightening wheel, further increasing the height of the pallet body and achieving a wide range of height increases. Compared to the existing technology that only uses a chain to drive the pallet lifting, this method allows for a higher lifting height and a wider range of applications.

[0025] During operation, the lifting assembly is first lowered to the lowest position of the fixed frame by the gear-type lifting mechanism, and then the lifting pallet is lowered to the lowest position of the lifting assembly by the winding lifting mechanism. Then, goods are loaded into the pallet. Finally, the lifting assembly is lifted by the gear-type lifting mechanism, and the lifting pallet is lifted again by the winding lifting mechanism, thus achieving two lifting of the lifting pallet. The lifting height is relatively high, which is suitable for construction scenarios with high requirements for lifting height. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of a pallet-type lifting device for construction according to the present invention;

[0027] Figure 2This is a schematic diagram of the structure of a pallet-type construction lifting device of this utility model after removing one lifting support column;

[0028] Figure 3 This is a schematic diagram of the structure of the fixing frame in this utility model;

[0029] Figure 4 This is a schematic diagram of the lifting assembly and gear-type lifting mechanism in this utility model;

[0030] Figure 5 This is a schematic diagram of the lifting tray and the winding lifting mechanism in this utility model.

[0031] Figure label:

[0032] 1. Fixed frame; 11. Base plate; 12. Fixed support column; 2. Lifting assembly; 21. Lifting support column; 22. First slide rail; 23. Rack; 3. Lifting pallet; 31. Pallet body; 32. Reinforcing plate; 33. Second slide rail; 34. Fastening plate; 4. Gear-type lifting mechanism; 41. First motor; 42. Output gear; 43. Transmission gear; 44. Transmission shaft; 45. Shaft seat; 46. Drive gear; 5. Winding lifting mechanism; 51. Mounting plate; 52. Second motor; 53. Reduction gear set; 54. Drive shaft; 55. Tensioning wheel; 56. Steel wire rope; Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The specific embodiments of the present invention are described below to facilitate understanding by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they fall within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a pallet-type construction lifting device that can lift the pallet body 31 twice, raising it to a higher position; specifically, it includes:

[0035] 1. Fixed frame; 2. Lifting assembly; 4. Gear-type lifting mechanism; 3. Lifting tray; and 5. Winding lifting mechanism.

[0036] The fixed frame 1 is equipped with a lifting assembly 2 and a gear-type lifting mechanism 4, which are movably connected to the lifting assembly 2. The lifting assembly 2 is equipped with a lifting pallet 3 and a winding lifting mechanism 5, which are movably connected to the lifting pallet 3. During operation, the lifting assembly 2 is first lowered to the lowest position of the fixed frame 1 by the gear-type lifting mechanism 4, and then the lifting pallet 3 is lowered to the lowest position of the lifting assembly 2 by the winding lifting mechanism 5. Then, goods are loaded into the lifting pallet 3. Finally, the lifting assembly 2 is lifted by the gear-type lifting mechanism 4, and the lifting pallet 3 is lifted again by the winding lifting mechanism 5, achieving two lifts of the lifting pallet 3. The lifting height is relatively high, making it suitable for construction scenarios with high requirements for lifting height.

[0037] like Figure 3 As shown, the fixing frame 1 includes a base plate 11, on which four fixing pillars 12 are installed.

[0038] like Figure 4 As shown, the lifting assembly 2 includes four lifting columns 21, which are slidably connected to four fixed columns 12 via four first slide rails 22. Each lifting column 21 has a rack 23 on its side wall. The lifting column 21 is slidably connected to the fixed column 12 via the first slide rails 22, which ensures that the lifting column 21 slides stably along the fixed column 12. Even if the lifting column 21 rises to a higher position, it can still be stably connected to the fixed column 12 under the limit of the four first slide rails 22.

[0039] The gear-type lifting mechanism 4 includes a first motor 41, which is mounted on a fixed support column 12. An output gear 42 is mounted on the output shaft of the first motor 41, meshing with a transmission gear 43. The transmission gear 43 is fixed to a transmission shaft 44, which is mounted on a bearing 45 of the fixed support column 12. A drive gear 46 is mounted at the end of the transmission shaft 44, meshing with a rack 23. The power output from the first motor 41 is sequentially transmitted to the rack 23 via the output gear 42, transmission gear 43, and drive gear 46, thereby driving the rack 23 and the lifting support column 21 to move up and down as a whole. The design of the transmission shaft 44 allows one first motor 41 to drive two lifting supports 21 on the same side to move up and down synchronously, saving costs.

[0040] Both ends of the drive shaft 44 are provided with drive gears 46, and the two drive gears 46 are respectively meshed with two racks 23 on the same side.

[0041] like Figure 5As shown, the winding lifting mechanism 5 includes a mounting plate 51, which is fixed to the top of the lifting support column 21. A second motor 52 is mounted on the mounting plate 51. The output shaft of the second motor 52 is connected to the drive shaft 54 ​​via a reduction gear set 53. A tensioning wheel 55 is coaxially connected to the drive shaft 54, and a steel wire rope 56 is wound around the tensioning wheel 55. The end of the steel wire rope 56 is connected to the lifting tray 3. The second motor 52 drives the drive shaft 54 ​​to rotate via the reduction gear set 53. As the drive shaft 54 ​​rotates, it drives the tensioning wheel 55 to rotate. During rotation, the tensioning wheel 55 winds the steel wire rope 56 around it, and the steel wire rope 56 drives the lifting tray 3 to move up and down, realizing the secondary lifting of the lifting tray 3.

[0042] The lifting pallet 3 includes a pallet body 31, with the end of a steel wire rope 56 connected to the pallet body 31. Two reinforcing plates 32 are respectively installed on both sides of the pallet body 31, and each reinforcing plate 32 has a slider. A second slide rail 33 is installed on the inner side of the lifting support column 21, and the reinforcing plates 32 are slidably connected to it. The pallet body 31 achieves smooth lifting and lowering by utilizing the sliders on the reinforcing plates 32 and the second slide rail 33 of the lifting support column 21.

[0043] The reinforcing plate 32 has a threaded hole, into which a fastening bolt is fitted. A fastening plate 34 is mounted on the fastening bolt. A clamping groove is formed on the side of the fastening plate 34 closest to the reinforcing plate 32, and the end of the wire rope 56 is clamped within this groove between the fastening plate 34 and the reinforcing plate 32. By using the fastening bolt to fix the fastening plate 34 to the reinforcing plate 32 and simultaneously clamping the wire rope 56 within the fastening groove, the connection strength is high, and installation is simple.

[0044] The winding lifting mechanism 5 is provided in two sets, and the steel wire ropes 56 of the two sets of winding lifting mechanisms 5 are respectively connected to two opposite corners of the pallet body 31.

[0045] The working principle of this embodiment is as follows:

[0046] In this embodiment, the pallet-type construction lifting device first lowers the lifting column 21 to the lowest position of the fixed column 12 via the gear-type lifting mechanism 4, and then lowers the lifting pallet 3 to the lowest position of the lifting column 21 via the winding lifting mechanism 5. Goods are then loaded into the pallet. Finally, the gear-type lifting mechanism 4 drives the lifting column 21 to lift once via the rack 23 on the lifting column 21. During this lifting, the winding lifting mechanism 5 on the lifting column 21 and the lifting pallet 3 are raised synchronously. After the lifting, the winding lifting mechanism 5 drives the lifting pallet 3 to lift a second time by winding the steel wire rope 56 around the tensioning wheel 55, further raising the height of the pallet body 31 and achieving a wide range of height increases.

[0047] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A pallet type construction hoist, characterized by: The utility model provides fixing frame (1), be provided with lifting assembly (2) and gear type lifting mechanism (4) on fixing frame (1), gear type lifting mechanism (4) and lifting assembly (2) are movably connected, be provided with lifting tray (3) and winding type lifting mechanism (5) on lifting assembly (2), winding type lifting mechanism (5) and lifting tray (3) are movably connected.

2. The palletized construction hoist of claim 1, wherein: The fixing frame (1) comprises a bottom plate (11), and four fixed support columns (12) are installed on the bottom plate (11); The lifting assembly (2) comprises four lifting support columns (21), and the four lifting support columns (21) are slidably connected to the four fixed support columns (12) through four first sliding rails (22) respectively; a rack (23) is arranged on the side wall of each lifting support column (21); and the gear type lifting mechanism (4) is in transmission connection with the rack (23).

3. The palletized construction hoist of claim 2, wherein: The gear type lifting mechanism (4) comprises a first motor (41), the first motor (41) is installed on the fixed support column (12); an output gear (42) is arranged on the output shaft of the first motor (41), the output gear (42) and a transmission gear (43) are in meshing connection, the transmission gear (43) is fixed on a transmission shaft (44), the transmission shaft (44) is installed on the shaft seat (45) of the fixed support column (12); a drive gear (46) is arranged at the end of the transmission shaft (44), and the drive gear (46) is in meshing connection with the rack (23).

4. The palletized construction hoist of claim 3, wherein: Both ends of the transmission shaft (44) are provided with drive gears (46), and the two drive gears (46) are in meshing connection with two racks (23) on the same side respectively.

5. The palletized construction hoist of claim 2, wherein: The winding type lifting mechanism (5) comprises a mounting plate (51), and the mounting plate (51) is fixed at the top of the lifting support column (21); a second motor (52) is installed on the mounting plate (51), the output shaft of the second motor (52) is in transmission connection with a drive shaft (54) through a speed reduction gear set (53), a take-up wheel (55) is coaxially connected to the drive shaft (54), a steel wire rope (56) is wound on the take-up wheel (55), and the end of the steel wire rope (56) is connected to the lifting tray (3).

6. The palletized construction hoist of claim 5, wherein: The lifting tray (3) comprises a tray body (31), and the end of the steel wire rope (56) is connected to the tray body (31); two reinforcing plates (32) are arranged on the two sides of the tray body (31) respectively, and a sliding block is arranged on each reinforcing plate (32); a second sliding rail (33) is arranged on the inner side of the lifting support column (21), and the reinforcing plate (32) is slidably connected to the second sliding rail (33) through the sliding block.

7. The palletized construction hoist of claim 6, wherein: A threaded hole is formed in the reinforcing plate (32), a fastening bolt is assembled in the threaded hole, a fastening piece (34) is arranged on the fastening bolt, a clamping groove is formed in the side of the fastening piece (34) close to the reinforcing plate (32), and the end of the steel wire rope (56) is clamped in the clamping groove between the fastening piece (34) and the reinforcing plate (32).

8. A pallet construction hoist as claimed in any one of claims 6 to 7, wherein: The winding lifting mechanism (5) is provided with two groups, and the steel wires (56) of the two groups of winding lifting mechanisms (5) are respectively connected at two diagonal positions of the tray body (31).

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