Modular hoisting device for 25-ton large-volume prefabricated cabin module
By designing a modular lifting device with hooks, lifting beams, and multi-point load-bearing slings, the problems of structural adaptability, uneven stress, and environmental adaptability of traditional lifting lugs for prefabricated cabins were solved, enabling a safe and rapid lifting process and improving lifting efficiency and reusability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ELECTRIC POWER EQUIP MFG CO LTD LINAN HENGXIN COMPLETE ELECTRIC MFG BRANCH
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-22
AI Technical Summary
In existing technologies, the traditional method of lifting prefabricated pods with lifting lugs suffers from poor structural adaptability, uneven stress distribution, poor balance, weak environmental adaptability, and low reusability, resulting in difficulties in lifting, imbalance, and easy deformation.
Design a modular lifting device for 25-ton large-volume prefabricated cabins. The device consists of a hook, a lifting beam, multiple lifting rings and slings. The lifting ring assembly is a self-locking mechanical buckle, and the slings form a triangular structure. During lifting, the hook, lifting rings and slings are symmetrically distributed to achieve multi-point force distribution and avoid stress concentration.
It achieves safe and stable lifting without deformation, significantly improves lifting efficiency, shortens lifting time, and is certified by GB/T 3811-2008 standard. It has a wind resistance of up to level 8, possesses high safety and economy, and is suitable for repeated use.
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Figure CN224266286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting technology, specifically to a modular hoisting device for a 25-ton large-volume prefabricated cabin. Background Technology
[0002] Prefabricated power distribution modules are prefabricated power transmission and distribution equipment, also known as containerized prefabricated substations. These modules are generally used outdoors, and due to their large overall tonnage and volume (up to approximately 25 tons), they require hoisting and installation.
[0003] In existing technologies, lifting lugs are generally used to lift prefabricated modules. However, traditional lifting lug technology still has the following problems:
[0004] 1. Poor structural adaptability: Traditional lifting lugs cannot be matched with the irregularly shaped cabin structure of prefabricated substations;
[0005] 2. Uneven stress distribution and poor balance: Single-point lifting by the lifting lugs leads to stress concentration in the cabin, and the deformation rate exceeds the industry standard by about 15%.
[0006] 3. Poor environmental adaptability: The offset of the hoisting equipment can reach about 30cm under level 6 wind conditions;
[0007] 4. Low reusability: Welded lifting lugs are prone to structural damage to the lifting lugs and the cabin during disassembly.
[0008] In summary, using traditional lifting lugs to lift prefabricated cabins presents problems such as lifting difficulties, lifting imbalance, and easy deformation. Utility Model Content
[0009] This utility model aims to solve the problems of lifting difficulties, lifting imbalance, and easy deformation existing in the prior art. Therefore, the purpose of this utility model is to propose a modular lifting device for 25-ton large-volume prefabricated modules, which ensures safe and stable lifting, prevents deformation of the module after lifting, greatly shortens the lifting time, and significantly improves the lifting efficiency of large-tonnage, large-volume prefabricated products.
[0010] To achieve the above objectives, this utility model employs the following technical solution:
[0011] A modular lifting device for large-volume prefabricated modules with a capacity of 25 tons includes:
[0012] Hook;
[0013] A lifting beam, which is located below the hook;
[0014] The first lifting ring is installed in the hook;
[0015] The second lifting ring is installed above the crossbeam of the lifting device and is located at the end of the crossbeam of the lifting device;
[0016] A lifting ring assembly, which is installed below the lifting beam and located at the end of the lifting beam;
[0017] The first sling has one end connected to the first lifting ring and the other end connected to the second lifting ring;
[0018] The second sling passes through the eyelet assembly and extends to both sides.
[0019] Furthermore, the lifting ring assembly includes a third lifting ring and a fourth lifting ring, which are connected together.
[0020] Furthermore, it also includes a plurality of first bases and a plurality of second bases, wherein the first bases are installed above the spreader beam and at the end of the spreader beam, and the second bases are installed below the spreader beam and at the end of the spreader beam.
[0021] Furthermore, both the first base and the second base have through holes, the second lifting ring is inserted into the through hole of the first base, and the third lifting ring is inserted into the through hole of the second base.
[0022] Furthermore, the second sling passes through the fourth ring and extends to both sides.
[0023] Furthermore, there are multiple hooks, first lifting rings, second lifting rings, lifting ring assemblies, second lifting straps, first bases, and second bases, and they are symmetrical about the central axis of the lifting beam.
[0024] Furthermore, the second lifting ring is a universal adjusting lifting ring.
[0025] Furthermore, the first sling and the lifting beam form a triangular structure, and the included angle α between the first sling and the lifting beam is greater than 45°.
[0026] Compared with the prior art, the beneficial effects of this utility model are:
[0027] 1. This utility model has a simple structure and is easy to assemble and disassemble, which greatly improves the hoisting efficiency. In actual use, the hoisting time is shortened from the traditional 2 hours to about 25 minutes.
[0028] 2. This utility model has high safety performance, has passed the GB / T 3811-2008 standard certification, and has a wind resistance of up to level 8.
[0029] 3. This utility model has significant economic advantages and can be reused multiple times.
[0030] 4. The cabin of this utility model will not deform after hoisting, and will not cause damage to the hoisting device and cabin structure.
[0031] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description
[0032] Figure 1 This is a perspective view of the present utility model;
[0033] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;
[0034] Figure 3 This utility model Figure 1 Enlarged view of point B in the image;
[0035] Figure 4 This is the front view of the present invention;
[0036] Figure 5 This is a schematic diagram of the usage state of this utility model.
[0037] Reference numerals in the attached drawings: 1. Hook; 2. Lifting beam; 3. First lifting ring; 4. Second lifting ring; 5. Third lifting ring; 6. Fourth lifting ring; 7. First lifting strap; 8. Second lifting strap; 9. First base; 10. Second base; 11. Prefabricated cabin. Detailed Implementation
[0038] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.
[0040] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0041] like Figure 1-4 As shown, a modular lifting device for a 25-ton large-volume prefabricated cabin includes a hook 1, a lifting beam 2, a first lifting ring 3, a second lifting ring 4, a lifting ring assembly, a first lifting strap 7, and a second lifting strap 8. The lifting beam 2 is located below the hook 1, the first lifting ring 3 is installed in the hook 1, the second lifting ring 4 is installed above the lifting beam 2 and at the end of the lifting beam 2, the lifting ring assembly is installed below the lifting beam 2 and at the end of the lifting beam 2, one end of the first lifting strap 7 is connected to the first lifting ring 3 and the other end is connected to the second lifting ring 4, and the second lifting strap 8 passes through the lifting ring assembly and extends to both sides.
[0042] Based on the aforementioned technical means, this lifting device consists of a hook 1, a lifting beam 2, a first lifting ring 3, a second lifting ring 4, a lifting ring assembly, a first lifting strap 7, and a second lifting strap 8. It has a simple structure, is easy to assemble and disassemble, and greatly improves lifting efficiency. In actual use, the lifting time has been reduced from the traditional 2 hours to approximately 25 minutes. Using the lifting strap method eliminates the need for welding to the prefabricated cabin 11, and will not damage the structure of the prefabricated cabin 11 during disassembly.
[0043] Please refer to the following for details. Figure 3 The lifting ring assembly includes a third lifting ring 5 and a fourth lifting ring 6. The third lifting ring 5 and the fourth lifting ring 6 are connected together to form a self-locking mechanical buckle, which facilitates connection with the lifting beam 2 and the second sling 8.
[0044] A modular lifting device for large-volume prefabricated cabins with a capacity of 25 tons also includes multiple first bases 9 and multiple second bases 10. The first bases 9 are installed above the lifting beam 2 and located at the end of the lifting beam 2, and the second bases 10 are installed below the lifting beam 2 and located at the end of the lifting beam 2.
[0045] In this embodiment, the first base 9 and the plurality of second bases 10 are plate-shaped structures made of high-strength alloy steel, which can be fixed to the lifting beam 2 by welding.
[0046] In this embodiment, the lifting beam 2 is made of Q235 steel with a diameter of 150mm and a wall thickness of 20mm.
[0047] In this embodiment, the second lifting ring 4 is a universal adjusting lifting ring, specifically the YDS universal swivel lifting ring manufactured and sold by Kosobi Rigging Tianjin Co., Ltd., which can be adjusted in multiple directions. Those skilled in the art should understand that the model of the second lifting ring 4 is not a limitation of this application.
[0048] In this embodiment, the first lifting ring 3, the third lifting ring 5, and the fourth lifting ring 6 are U-shaped lifting rings with locking mechanisms, specifically manufactured by Xinghua Yunlian Stainless Steel Products Co., Ltd.
[0049] For the 304 stainless steel lifting rings produced and sold, those skilled in the art should understand that the model of the first lifting ring 2, the third lifting ring 5, and the fourth lifting ring 6 is not a limitation of this application.
[0050] Please refer to the following for details. Figure 3 Both the first base 9 and the second base 10 have through holes. The second lifting ring 4 is inserted into the through hole of the first base 9, and the third lifting ring 5 is inserted into the through hole of the second base 10.
[0051] Please refer to the following for details. Figure 1 The second sling 8 passes through the fourth ring 6 and extends to both sides.
[0052] In this embodiment, the first sling 7 has perforations at both ends for wearing.
[0053] In this embodiment, the second sling 8 has perforations at both ends and in the middle for hoisting the prefabricated cabin 11.
[0054] Please refer to the following for details. Figure 4 The lifting hook 1, first lifting ring 3, second lifting ring 4, lifting ring assembly, second lifting strap 8, first base 9 and second base 10 are two in number and are symmetrical about the central axis of the lifting beam 2. The symmetrical structure design results in a more uniform stress distribution when bearing load, avoids local stress concentration, and reduces the risk of deformation or damage.
[0055] Please refer to the following for details. Figure 4 The first sling 7 and the lifting beam 2 form a triangular structure. The included angle α between the first sling 7 and the lifting beam 2 is greater than 45°. The triangular lifting structure can effectively distribute the load and reduce the risk of torsion. At the same time, the three sides restrain each other. Even if one side is under force, the load will be transmitted through the other two sides to avoid local stress concentration. During lifting, the triangular structure can distribute the weight evenly to the three support points and reduce the probability of single-point overload.
[0056] A modular lifting device for large-volume prefabricated modules with a capacity of 25 tons, the working principle of which is illustrated in the attached diagram. Figure 5 illustrate;
[0057] First, the lifting device is assembled. After assembly, the holes at both ends of each second lifting strap are connected to the prefabricated cabin 11. Then, the hook 1 is connected to the crane, and the prefabricated cabin 11 is lifted by the crane.
[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A modular lifting device for large-volume prefabricated cabins with a capacity of 25 tons, characterized in that, include: Hook (1); The lifting beam (2) is located below the hook (1); The first lifting ring (3) is installed in the hook (1); The second lifting ring (4) is installed above the lifting beam (2) and at the end of the lifting beam (2); The lifting ring assembly is installed below the lifting beam (2) and at the end of the lifting beam (2); The first sling (7) has one end connected to the first lifting ring (3) and the other end connected to the second lifting ring (4); The second sling (8) passes through the ring assembly and extends to both sides.
2. The 25-ton large-volume prefabricated modular lifting device according to claim 1, characterized in that, The lifting ring assembly includes a third lifting ring (5) and a fourth lifting ring (6), which are connected together.
3. The 25-ton large-volume prefabricated modular lifting device according to claim 2, characterized in that, It also includes a plurality of first bases (9) and a plurality of second bases (10), the first bases (9) being installed above the spreader beam (2) and at the end of the spreader beam (2), and the second bases (10) being installed below the spreader beam (2) and at the end of the spreader beam (2).
4. The 25-ton large-volume prefabricated modular lifting device according to claim 3, characterized in that, Both the first base (9) and the second base (10) have through holes. The second lifting ring (4) is inserted into the through hole of the first base (9). The third lifting ring (5) and the second lifting ring (4) are inserted into the through hole of the second base (10).
5. The 25-ton large-volume prefabricated modular lifting device according to claim 4, characterized in that, The second sling (8) passes through the fourth ring (6) and extends to both sides.
6. The 25-ton large-volume prefabricated modular lifting device according to claim 3, characterized in that, There are multiple hooks (1), first lifting rings (3), second lifting rings (4), lifting ring assembly, second lifting straps (8), first base (9) and second bases (10), and they are symmetrical about the central axis of the lifting beam (2).
7. The 25-ton large-volume prefabricated modular lifting device according to any one of claims 1-6, characterized in that, The second lifting ring (4) is a universal adjusting lifting ring.
8. The 25-ton large-volume prefabricated modular lifting device according to any one of claims 1-6, characterized in that, The first sling (7) and the lifting beam (2) form a triangular structure, and the included angle α between the first sling (7) and the lifting beam (2) is greater than 45°.