Self-locking large h-shaped steel lifting appliance
Patent Information
- Application Number
- CN202620049002.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2036-01-15
AI Technical Summary
[0010]操作过程中稳定性较差，易发生梁体滑移或倾覆，对作业人员与现场安全构成较大威胁
[0025] The present invention, which adopts the above technical solution, has the following beneficial effects compared with the prior art: the lifting width of this lifting tool can be automatically adjusted, and the self-locking function is achieved through the linkage mechanism. It is convenient to operate and safe to use, which not only effectively reduces labor costs, improves work efficiency, and ensures the construction period, but also improves product quality.
Smart Images
Figure CN224768321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structures, and in particular to a self-locking large H-beam steel lifting device. Background Technology
[0002] Currently, in the existing technologies of the steel structure manufacturing industry, the following methods are mainly used for lifting operations of large or flat H-beam welded steel beams for flipping, each with its own limitations:
[0003] 1. Using steel wire ropes for direct binding and lifting has the following drawbacks in practical applications:
[0004] During the binding and stressing process, steel wire ropes can easily cause local compression on the flange of H-beams, leading to plastic deformation of the flange plates and affecting the dimensional accuracy and appearance quality of the components.
[0005] The sharp edges of the flange plate can cause severe bending of the wire rope during hoisting, resulting in structural damage and even localized permanent deformation of the wire rope.
[0006] Repeated bending and stress concentration can significantly reduce the service life of wire ropes, and in severe cases may cause strand breakage, posing a safety hazard.
[0007] 2. Using multiple large hooks for four-point or two-point lifting has the following problems in actual operation:
[0008] When the hook's pressing tongue is under load, it will apply high stress to the flange plate surface, forming obvious indentations. Subsequent repair processes are complex, time-consuming, and labor-intensive, increasing manufacturing costs.
[0009] For large-tonnage, oversized welded H-beams, there is a lack of large hooks on the market with matching load-bearing capacity, which limits the selection of lifting tools;
[0010] The structure is unstable during operation and is prone to slippage or overturning, posing a significant threat to the safety of workers and the site.
[0011] 3. While the specialized lifting tools currently available on the market have improved lifting conditions to some extent, significant load limitations still exist:
[0012] These types of lifting equipment are typically designed for beams with standard plate thickness and flange width, but they are not well-suited for lifting ultra-thick welded H-beams (such as those with a plate thickness exceeding 50mm or a flange width greater than 600mm).
[0013] Its rated lifting capacity and structural form cannot meet the needs of flipping extra-large cross-section welded beams, thus restricting its application in the fabrication of heavy and oversized H-beams. Utility Model Content
[0014] The purpose of this utility model is to provide a more effective self-locking large H-beam lifting device. The specific purpose is explained in the several substantive technical effects in the specific implementation section.
[0015] To achieve the above objectives, the present invention adopts the following technical solution:
[0016] The self-locking large H-beam lifting tool is characterized by...
[0017] The lifting device includes a lifting lug 7, which is hinged to a locking linkage mechanism 3. The locking linkage mechanism 3 is an inclined rod, and the end of the inclined rod is hinged to a side arm 1. The horizontal arm of the side arm 1 is inserted into a sliding sleeve 2, and the vertical part of the side arm 1 is provided with a groove 9.
[0018] It also includes a central connecting rod 8, the upper end of which is hinged to the middle of the locking connecting rod mechanism 3, and the lower end of which is hinged to the middle of the sliding sleeve 2.
[0019] The corresponding central connecting rod 8, locking connecting rod mechanism 3, and side arm 1 each contain two sets and are arranged symmetrically.
[0020] A further technical solution of this utility model is that the surface of the groove 9 is a plane.
[0021] A further technical solution of this utility model is that a lifting lug 7 is provided with a lifting lug hole 5.
[0022] A further technical solution of this utility model is that one of the side arms 1 and the corresponding sliding sleeve 2 are provided with holes for installing positioning pins 10.
[0023] A further technical solution of this utility model is that the self-locking large H-beam lifting device comprises one or more and arranged in parallel.
[0024] A further technical solution of this utility model is that the horizontal arm of the side arm 1 will not come off the sliding sleeve 2.
[0025] The present invention, which adopts the above technical solution, has the following beneficial effects compared with the prior art: the lifting width of this lifting tool can be automatically adjusted, and the self-locking function is achieved through the linkage mechanism. It is convenient to operate and safe to use, which not only effectively reduces labor costs, improves work efficiency, and ensures the construction period, but also improves product quality. Attached Figure Description
[0026] To further illustrate the present invention, the following description is provided in conjunction with the accompanying drawings:
[0027] Figure 1 This is a structural diagram of the invention;
[0028] Figure 2 A structural diagram for preparing the clamping mechanism for the invention;
[0029] Figure 3 A structural diagram for the invention of the clamping mechanism;
[0030] Figure 4 A diagram showing the positional state of the invention after it has been placed.
[0031] The components include: 1. Side arm; 2. Sliding sleeve; 3. Locking linkage mechanism; 4. H-beam cross plate; 5. Lifting lug hole; 6. H-beam web plate; 7. Lifting lug; 8. Middle connecting rod; 9. Groove; 10. Positioning pin. Detailed Implementation
[0032] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.
[0033] 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 process, method, article, or apparatus.
[0034] This patent provides multiple parallel solutions; the different descriptions represent improved solutions or parallel solutions based on the basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.
[0035] Example 1: Referring to all the attached drawings; a self-locking large H-beam lifting device, characterized in that,
[0036] The lifting device includes a lifting lug 7, which is hinged to a locking linkage mechanism 3. The locking linkage mechanism 3 is an inclined rod, and the end of the inclined rod is hinged to a side arm 1. The horizontal arm of the side arm 1 is inserted into a sliding sleeve 2, and the vertical part of the side arm 1 is provided with a groove 9.
[0037] It also includes a central connecting rod 8, the upper end of which is hinged to the middle of the locking connecting rod mechanism 3, and the lower end of which is hinged to the middle of the sliding sleeve 2.
[0038] The corresponding central connecting rod 8, locking connecting rod mechanism 3, and side arm 1 each consist of two sets arranged symmetrically. The substantial technical effects and their implementation process, i.e., basic functions and non-obvious aspects, are as follows: The purpose of this self-locking H-beam lifting tool is to provide a special lifting tool for large H-beam welded steel beams. This lifting tool has an automatically adjustable lifting width and achieves a self-locking function through a connecting rod mechanism. It is convenient to operate and safe to use, effectively reducing labor costs, improving work efficiency, ensuring project deadlines, and improving product quality. This self-locking large H-beam lifting tool is mainly used for lifting and transferring some ultra-long, ultra-wide, and ultra-heavy large welded H-beams during the manufacturing process in the factory. The maximum lifting weight of a single set can reach 20 tons, and a double-car lifting system can lift welded H-beams up to 40 tons. The lifting tool mainly consists of four parts: two sets of lifting lugs, sliding sleeves, locking connecting rod mechanism, and lifting lugs.
[0039] 1. When steel beams need to be horizontally lifted and transported, use a crane to horizontally lift and place the lifting equipment above the flange of the H-beam. If two cranes are required for lifting, place a set of lifting equipment at symmetrical positions at both ends of the upper flange of the H-beam.
[0040] 2. Pull out the positioning pin of the lifting device.
[0041] 3. Two cranes lift simultaneously, and the locking linkage mechanism causes the two lifting lugs to retract and lock the H-beam flange plate.
[0042] 4. After the hoisting is completed, the overhead crane is lowered so that the lifting lugs slide out to their maximum position, and the positioning pin is inserted into the positioning hole to lock the lifting device.
[0043] 5. Use the overhead crane to lift the spreader off the H-beam and place it in the tooling area.
[0044] Example 2: As a further improvement, parallel, or optional independent solution, the surface of groove 9 is a plane. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: secure and stable.
[0045] Example 3: As a further improvement, parallel, or optional independent solution, a lifting lug 7 is provided with a lifting lug hole 5. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: facilitating lifting.
[0046] Example 4: As a further improvement, parallel, or optional independent solution, one of the side arms 1 and the corresponding sliding sleeve 2 are provided with holes for installing the positioning pin 10. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: it can be fixed to prevent further sliding.
[0047] Example 5: As a further improvement, parallel, or optional independent solution, the self-locking large H-beam lifting sling comprises one or more arranged in parallel. The substantial technical effect and its implementation process, i.e., the basic function and non-obvious aspects, are as follows: multiple sets working together to lift.
[0048] Example 6: As a further improvement, parallel, or optional independent solution, the horizontal arm of side arm 1 will not disengage from the sliding sleeve 2. The substantial technical effect and its implementation process, i.e., the basic function and non-obviousness, are as follows: the structure is more stable.
[0049] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.
[0050] It should be noted that the multiple modules in this patent are an integration of existing technology modules and do not involve any new modules. Even if some modules use programs, those programs are undoubtedly known programs.
[0051] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.
[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.
Claims
1. A self-locking large H-beam lifting device, characterized in that, The lifting device includes a lifting lug (7), which is hinged to a locking linkage mechanism (3). The locking linkage mechanism (3) is an inclined rod, and the end of the inclined rod is hinged to a side arm (1). The horizontal arm of the side arm (1) is inserted into a sliding sleeve (2), and the vertical part of the side arm (1) is provided with a groove (9). It also includes a middle link (8), the upper end of which is hinged to the middle of the locking link mechanism (3), and the lower end of which is hinged to the middle of the sliding sleeve (2); The corresponding middle link (8), locking link mechanism (3), and side arm (1) each contain two sets and are arranged symmetrically.
2. The self-locking large H-beam lifting device as described in claim 1, characterized in that, The surface of the groove (9) is a plane.
3. The self-locking large H-beam lifting device as described in claim 1, characterized in that, A lifting lug hole (5) is provided on the lifting lug (7).
4. The self-locking large H-beam lifting device as described in claim 1, characterized in that, One of the side arms (1) and the corresponding sliding sleeve (2) are provided with holes for installing positioning pins (10).
5. The self-locking large H-beam lifting device as described in claim 1, characterized in that, A self-locking large H-beam lifting device consists of one or more units arranged in parallel.
6. The self-locking large H-beam lifting device as described in claim 1, characterized in that, The horizontal arm of the side arm (1) will not come out of the sleeve (2).