Cargo lifting device for building
By using the rotating connection between the outer and inner frames and the unloading structure driven by a hydraulic cylinder, the problem of threaded rod jamming is solved, enabling automatic tilting unloading of goods and simplifying maintenance, thereby improving the operational stability and maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HUAYU CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-14
AI Technical Summary
Existing cargo lifting devices are prone to jamming when handling granular materials such as stones or mud, resulting in low operating efficiency and frequent maintenance.
The design features a rotating connection between the outer and inner frames, coupled with a hydraulic cylinder-driven unloading structure. The inner and outer frames form a closed space, and the hydraulic cylinder pushes the inner frame to tilt for unloading, preventing particles from entering the mechanical activity area and simplifying maintenance.
It enables automatic tilting and unloading of goods, reducing manual handling costs, lowering equipment failure rates, and improving operational stability and maintenance efficiency.
Smart Images

Figure CN224493626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo transportation technology, specifically a cargo lifting device for building construction. Background Technology
[0002] Building material lifting devices are equipment used to lift building materials from the ground to the work surface. They are designed to efficiently and safely complete the vertical transportation of building materials, thereby improving transportation efficiency and reducing the labor intensity of workers.
[0003] Publication No. CN222433902U discloses a cargo lifting device for building construction. This utility model provides a cargo lifting device for building construction that enables rapid unloading. The device includes a suspended basket, a first motor, a rotating shaft, a pull rope, a push plate, a threaded rod, a fixing plate, and a second motor. The suspended basket is rotatably connected to a pair of rotating shafts, and a pair of first motors are fixedly connected to it. The output end of the first motor is fixedly connected to a rotating shaft on the same side. One end of the pull rope is wound around a rotating shaft, and the other end is fixedly connected to an external facility at a high point on the building. A push plate is slidably connected to the suspended basket, and a pair of second motors are fixedly connected to it. A pair of fixing plates are also fixedly connected to the suspended basket, and a threaded rod is rotatably connected to the fixing plates. This utility model, through components such as the second motor and the push plate, enables the cargo lifting device to quickly unload cargo when it is transported to a suitable location, reducing the workload of workers and improving the overall transportation efficiency of the cargo lifting device.
[0004] The aforementioned patent addresses the shortcomings of existing cargo lifting devices, which require manual unloading by workers when transporting goods to higher locations, resulting in significant time and labor costs. It improves upon existing technology by using a second motor to drive a threaded rod, which in turn moves a push plate forward to eject goods from the basket. However, in this technical solution, the threaded rod is exposed inside the basket, making it easy for loose materials such as stones or sand to become stuck in the gap between the threaded rod and the basket's interior when handling such materials. This necessitates regular cleaning, impacting the equipment's operational efficiency. Therefore, a cargo lifting device for building construction is proposed to solve these problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a cargo lifting device for building construction, which has the advantages of high stability and high maintenance efficiency. It solves the problem that in existing cargo lifting equipment, the threaded rod is exposed inside the basket, and when transporting granular materials such as stones or mud, some scattered materials can easily get stuck between the threaded rod and the inside of the basket, requiring regular cleaning and affecting the operating efficiency of the equipment.
[0006] To achieve the aforementioned goals of high stability and high maintenance efficiency, this utility model provides the following technical solution: a building construction cargo lifting device, comprising an installation plate and an outer frame, an inner frame rotatably installed inside the outer frame, a lifting connection assembly provided on the installation plate, and a cargo unloading structure provided between the outer frame and the inner frame;
[0007] The unloading structure includes two support plates fixedly installed at the bottom of the outer frame. A crossbar is fixedly installed between the opposite surfaces of the two support plates. Two hydraulic cylinders are fixedly installed on the surface of the crossbar. Two rectangular holes are opened on the bottom surface of the inner cavity of the outer frame. A connecting frame located in the rectangular holes is fixedly installed on the bottom surface of the inner frame. The output end of the hydraulic cylinder is rotatably connected to the connecting frame.
[0008] Furthermore, both the outer frame and the inner frame have openings on one side surface, the outer dimensions of the inner frame are smaller than the inner dimensions of the outer frame, and the openings of the inner frame are located inside the outer frame.
[0009] Furthermore, the lifting assembly includes a mounting frame fixedly installed on the opposite side surface of the mounting plate, a winch fixedly installed on the surface of the mounting frame, a wire rope fixedly installed on the surface of the winch winding roller, and connecting rods with connecting holes fixedly installed on the opposite side surfaces of the two support plates. One end of the wire rope is fixedly connected to the connecting rod through the connecting hole, and a guide assembly is provided between the mounting frame and the support plate.
[0010] Furthermore, a support roller is rotatably mounted on the inner side of the mounting frame, and the wire rope is in contact with the support roller.
[0011] Furthermore, the guide assembly includes a guide rail fixedly mounted on the surface of the mounting bracket, one end of the support plate is rotatably mounted with two sets of guide wheels extending to the inside of the guide rail, and an anti-detachment plate is fixedly mounted on the top of the guide rail.
[0012] Furthermore, both the guide rail and the mounting plate are fixedly mounted with fixing blocks having fixing holes on their surfaces.
[0013] Furthermore, two casters are fixedly installed at the bottom of the support plate.
[0014] Compared with the prior art, this utility model provides a lifting device for building construction goods, which has the following advantages:
[0015] This building construction cargo lifting device, through the rotating connection design of the outer and inner frames, combined with the unloading structure driven by hydraulic cylinders, can realize automatic tilting and unloading of cargo after lifting, reducing manual handling costs. The closed design of the inner and outer frames forms a protective barrier, which can prevent particulate matter from entering the mechanical activity area. Moreover, there are no complex grooves or thread gaps, and daily maintenance only requires simple rinsing, without the need for deep cleaning of jammed materials, which significantly reduces the equipment failure rate and improves the stability of equipment operation and maintenance efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the bottom of the outer frame of the present invention;
[0018] Figure 3 This is a schematic diagram of the outer and inner frames of the present invention.
[0019] Figure 4 This is a schematic diagram of the guide rail structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the structural support plate of this utility model.
[0021] In the diagram: 1. Mounting plate; 2. Outer frame; 3. Inner frame; 4. Support plate; 5. Crossbar; 6. Hydraulic cylinder; 7. Rectangular hole; 8. Connecting frame; 9. Mounting frame; 10. Winch; 11. Wire rope; 12. Connecting rod; 13. Support roller; 14. Guide rail; 15. Guide wheel; 16. Anti-detachment plate; 17. Fixing block; 18. Moving wheel. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-5This embodiment of a building construction cargo lifting device includes a mounting plate 1 and an outer frame 2. An inner frame 3 is rotatably mounted inside the outer frame 2. A lifting connection assembly is provided on the mounting plate 1. A unloading structure is provided between the outer frame 2 and the inner frame 3. The unloading structure includes two support plates 4 fixedly mounted on the bottom of the outer frame 2. A crossbar 5 is fixedly mounted between the opposite surfaces of the two support plates 4. Two hydraulic cylinders 6 are fixedly mounted on the surface of the crossbar 5. Two rectangular holes 7 are opened on the bottom surface of the inner cavity of the outer frame 2. A connecting frame 8 located in the rectangular holes 7 is fixedly mounted on the bottom surface of the inner frame 3. The output end of the hydraulic cylinder 6 is rotatably connected to the connecting frame 8.
[0024] In this embodiment, both the outer frame 2 and the inner frame 3 have openings on one side surface. The external dimensions of the inner frame 3 are smaller than the internal dimensions of the outer frame 2. The opening of the inner frame 3 is located inside the outer frame 2, ensuring that the inner frame 3 will not interfere with the outer frame 2 when unloading at an angle, and forming a closed warehouse structure.
[0025] In this embodiment, the lifting assembly includes a mounting frame 9 fixedly installed on the opposite side surface of the mounting plate 1. A winch 10 is fixedly installed on the surface of the mounting frame 9. A wire rope 11 is fixedly installed on the surface of the winding roller of the winch 10. Connecting rods 12 with connecting holes are fixedly installed on the opposite side surfaces of the two support plates 4. One end of the wire rope 11 is fixedly connected to the connecting rod 12 through the connecting hole. A guide assembly is provided between the mounting frame 9 and the support plate 4. The winch 10 and the wire rope 11 can be used to lift goods at different heights.
[0026] In this embodiment, a support roller 13 is rotatably mounted on the inner side of the mounting frame 9. The wire rope 11 is in contact with the support roller 13. The support roller 13 can provide dynamic support for the wire rope 11, disperse the tension of the winch 10, and reduce the risk of local wear of the wire rope 11.
[0027] In this embodiment, the guiding component includes a guide rail 14 fixedly installed on the surface of the mounting frame 9. Two sets of guide wheels 15 are rotatably installed on one end of the support plate 4 and extend to the inside of the guide rail 14. An anti-detachment plate 16 is fixedly installed on the top of the guide rail 14. Through the rolling cooperation between the guide wheels 15 and the guide rail 14, the outer frame 2 maintains a vertical movement trajectory during the lifting process, preventing the goods from deviating.
[0028] In this embodiment, both the guide rail 14 and the mounting plate 1 are fixedly mounted with fixing blocks 17 having fixing holes on their surfaces. The fixing blocks 17 facilitate the quick fixation of the equipment to the building structure, thus achieving stable installation of the equipment.
[0029] In this embodiment, two casters 18 are fixedly installed at the bottom of the support plate 4. The casters 18 facilitate the movement of the equipment on the ground and make it easy to transfer the equipment to different construction areas.
[0030] It should be noted that there are multiple guide rails 14 in this embodiment. During use, multiple guide rails 14 can be spliced together according to the required lifting height of the goods, so that the overall length of the guide rails 14 is adapted to the required lifting height of the goods.
[0031] It should be noted that in this embodiment, the two hydraulic cylinders 6 are precisely controlled by a programmable logic controller. The synchronous movement of the two hydraulic cylinders 6 is achieved through programming, which helps to ensure the stable flipping of the inner frame 3.
[0032] It should be noted that the connecting frame 8 in this embodiment is provided with a pin on its inner side, and the output end of the hydraulic cylinder 6 is provided with a pin hole. The inner diameter of the pin hole is larger than the outer diameter of the pin. The connecting frame 8 and the hydraulic cylinder 6 are rotatably connected through the pin hole and the pin.
[0033] The working principle of the above embodiments is as follows:
[0034] The equipment is fixed to the working surface and building structure using fasteners such as bolts through the guide rail 14 and the fixing block 17 on the surface of the mounting plate 1. The goods are placed in the inner frame 3. At this time, the outer frame 2 closes the opening of the inner frame 3, so that a closed space is formed between the inner frame 3 and the outer frame 2. The winch 10 winds up the wire rope 11. At this time, the guide wheel 15 is embedded in the inner side of the guide rail 14 and rolls along it. When the winch 10 is started, the wire rope 11 pulls the support plate 4 to rise, driving the outer frame 2 and the inner frame 3 to rise synchronously. When the goods are raised to the target height, the hydraulic cylinder 6 is activated. The hydraulic cylinder 6 pushes the inner frame 3 to flip, so that the inner frame 3 gradually tilts. When tilting, the goods in the inner frame 3 automatically slide out due to gravity, completing the unloading.
[0035] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] 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 lifting device for building construction, comprising a mounting plate (1) and an outer frame (2), wherein an inner frame (3) is rotatably mounted inside the outer frame (2), characterized in that: The mounting plate (1) is provided with a lifting connection assembly, and an unloading structure is provided between the outer frame (2) and the inner frame (3); The unloading structure includes two support plates (4) fixedly installed at the bottom of the outer frame (2). A crossbar (5) is fixedly installed between the opposite surfaces of the two support plates (4). Two hydraulic cylinders (6) are fixedly installed on the surface of the crossbar (5). Two rectangular holes (7) are opened on the bottom surface of the inner cavity of the outer frame (2). A connecting frame (8) located in the rectangular holes (7) is fixedly installed on the bottom surface of the inner frame (3). The output end of the hydraulic cylinder (6) is rotatably connected to the connecting frame (8).
2. The building construction cargo lifting device according to claim 1, characterized in that: Both the outer frame (2) and the inner frame (3) have openings on one side surface. The outer dimensions of the inner frame (3) are smaller than the inner dimensions of the outer frame (2). The opening of the inner frame (3) is located inside the outer frame (2).
3. The building construction cargo lifting device according to claim 1, characterized in that: The lifting assembly includes a mounting frame (9) fixedly installed on the opposite side surface of the mounting plate (1). A winch (10) is fixedly installed on the surface of the mounting frame (9). A wire rope (11) is fixedly installed on the surface of the winding roller of the winch (10). A connecting rod (12) with a connecting hole is fixedly installed on the opposite side surface of the two support plates (4). One end of the wire rope (11) is fixedly connected to the connecting rod (12) through the connecting hole. A guide assembly is provided between the mounting frame (9) and the support plate (4).
4. A lifting device for building construction goods according to claim 3, characterized in that: The mounting frame (9) has a support roller (13) rotatably mounted on its inner side, and the wire rope (11) is in contact with the support roller (13).
5. A lifting device for building construction goods according to claim 3, characterized in that: The guide assembly includes a guide rail (14) fixedly mounted on the surface of the mounting bracket (9), and a support plate (4) with two sets of guide wheels (15) rotatably mounted on one end and extending to the inside of the guide rail (14). An anti-detachment plate (16) is fixedly mounted on the top of the guide rail (14).
6. A lifting device for building construction goods according to claim 5, characterized in that: The guide rail (14) and the mounting plate (1) are both fixedly mounted with fixing blocks (17) with fixing holes on their surfaces.
7. A lifting device for building construction goods according to claim 1, characterized in that: The support plate (4) has two casters (18) fixedly installed at its bottom.