A hoisting device for I-shaped composite beam

Abstract

The utility model belongs to bridge hoisting technical field discloses a kind of I-shaped composite beam hoist, including main connecting beam, at least two bearing clamps, buffer antiskid component and hoisting connecting piece;By the flange width direction arrangement of main connecting beam across I-shaped composite beam, and make both sides bearing clamp can adjust position along the length direction of main connecting beam, simultaneously by hoisting connecting piece fixed both relative position and connect with hoisting equipment, make hoisting force transmission to bearing clamp and I-shaped composite beam via hoisting connecting piece, to realize the lifting of I-shaped composite beam, improve the versatility and operation convenience of hoist, reduce the procurement and maintenance cost of equipment, improve construction efficiency;Ensure the stability and security of hoisting process simultaneously, avoid beam body to shake or damage in lifting process, to effectively protect the structural integrity of I-shaped composite beam.

Description

Technical Field

[0001] This utility model relates to the field of bridge hoisting technology, and in particular to a hoisting tool for I-beam composite beams. Background Technology

[0002] I-beam composite beams are a new type of load-bearing component that integrates the I-beam cross-section structure with the concept of composite construction. They are typically composed of steel and materials such as concrete or UHPC (ultra-high performance concrete). This structure fully utilizes the mechanical advantages of different materials, achieving a harmonious balance between high load-bearing capacity, high stiffness, and lightweight design. Its cross-sectional shape resembles the letter "I," consisting of an upper flange, a lower flange, and a web. The upper and lower flanges primarily bear the tensile and compressive stresses caused by bending moments, while the web bears the shear force, thus giving the beam excellent bending and shear resistance under load. Simultaneously, the composite layer further enhances the overall crack resistance and durability. As a crucial link between prefabrication and on-site assembly, the hoisting operation of I-beam composite beams has a critical impact on construction safety, accuracy, and efficiency.

[0003] Currently, there are still many shortcomings in the lifting equipment for I-beam composite beams: On the one hand, existing lifting equipment has poor versatility, usually only suitable for specific specifications of I-beam composite beams. When projects involve beams with different cross-sectional dimensions, construction parties often need to prepare multiple types of lifting equipment, which not only increases the cost of equipment procurement and maintenance, but also prolongs construction preparation time due to frequent changes in lifting equipment, significantly restricting construction efficiency. On the other hand, existing lifting equipment lacks stability and safety during the lifting process. Uneven force distribution or angle changes during lifting can easily cause beam swaying, or even the risk of falling off, posing significant safety hazards. In addition, some lifting equipment has unreasonable stress design, resulting in uneven stress distribution on the beam during lifting, which can easily cause surface damage or micro-cracks, affecting the overall load-bearing capacity and durability of the structure. Utility Model Content

[0004] The purpose of this utility model is to solve or at least alleviate some or all of the above-mentioned problems. Specifically, it aims to provide a lifting tool for I-beam composite beams, improving the tool's versatility and ease of operation, reducing equipment procurement and maintenance costs, and increasing construction efficiency. Simultaneously, it ensures the stability and safety of the lifting process, preventing the beam from swaying or being damaged during lifting, thereby effectively protecting the structural integrity of the I-beam composite beam.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A lifting device for I-beam composite beams includes:

[0007] The main connecting beam is arranged across the flange width direction of the I-shaped composite beam;

[0008] At least two load-bearing clamps are arranged opposite to each other and located on both sides of the main connecting beam along its length. Both clamps are adjustable in position along the length of the main connecting beam. The clamping ends of the load-bearing clamps are arranged parallel to the flange width direction and are used to clamp the edges on both sides of the flange width direction.

[0009] A buffer anti-slip component is fixedly installed at the clamping end of the bearing clamp and is in direct contact with the flange. It is used to prevent the flange from sliding and absorb the impact force generated during the lifting process.

[0010] The hoisting connector is used to fix the bearing clamp to the main connecting beam and connect it to the hoisting equipment.

[0011] In some alternative embodiments, the main connecting beam has an elongated sliding groove along its length, and the bearing clamp has a second positioning hole above its clamping end. The second positioning hole can slide to any position of the elongated sliding groove. The hoisting connector passes through the second positioning hole and is inserted into the elongated sliding groove and then fixed, so as to fix the bearing clamp at any position along the length of the main connecting beam.

[0012] In some alternative embodiments, the main connecting beam has a plurality of first positioning holes along its length, and the bearing clamp has a second positioning hole above its clamping end. The second positioning hole can correspond to any of the first positioning holes. The hoisting connector passes through the second positioning hole and the corresponding first positioning hole in sequence to fix the bearing clamp at any position along the length of the main connecting beam.

[0013] In some alternative embodiments, the lifting connector includes a shackle, which includes a shackle body, a positioning pin, and a locking element. The two ends of the shackle body clamp the main connecting beam and the load-bearing clamp. The positioning pin passes through one end of the shackle body, sequentially through the main connecting beam and the load-bearing clamp, and is inserted into the other end of the shackle body. The locking element is fastened to the positioning pin to clamp the two ends of the shackle body, so as to fix the main connecting beam and the load-bearing clamp so that their relative positions remain unchanged.

[0014] In some alternative embodiments, the lifting connector includes a shackle, which includes a shackle body and a threaded pin. The two ends of the shackle body clamp the main connecting beam and the load-bearing clamp. The threaded pin enters from one end of the shackle body, passes through the main connecting beam and the load-bearing clamp in sequence, and is threadedly connected to the other end of the shackle body.

[0015] In some alternative embodiments, the bearing fixture includes a clamping plate with a groove in the middle for clamping the edge of the flange. The opening direction of the groove is parallel to the width direction of the flange. The edge of the flange can be embedded in the groove, and the inner wall of the groove is provided with the buffer anti-slip component.

[0016] In some alternative embodiments, the clamping plate is a U-shaped plate.

[0017] In some alternative embodiments, the buffer anti-slip assembly includes an anti-slip pad and an elastic buffer layer, wherein the elastic buffer layer is disposed between the anti-slip pad and the inner wall of the groove, and is used to buffer the contact impact between the load-bearing clamp and the flange during hoisting.

[0018] In some alternative embodiments, the elastic buffer layer includes multiple layers of spring sheets stacked between the anti-slip pad and the inner wall of the groove.

[0019] In some alternative embodiments, the anti-slip pad has anti-slip protrusions on the contact surface between the anti-slip pad and the flange.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a lifting device for I-beam composite beams, including a main connecting beam, at least two load-bearing clamps, a buffer and anti-slip assembly, and a lifting connector. By arranging the main connecting beam across the flange width of the I-beam composite beam and allowing the load-bearing clamps on both sides to be adjusted along the length of the main connecting beam, and simultaneously fixing their relative positions and connecting them to the lifting equipment via the lifting connector, the lifting force is transmitted to the load-bearing clamps and the I-beam composite beam through the lifting connector, thereby achieving the lifting of the I-beam composite beam. This structural design allows the lifting device to adapt to I-beam composite beams of different specifications and widths, eliminating the need for custom-made lifting devices for each beam type, thus significantly improving the adaptability and versatility of the equipment. This structural design reduces the need to purchase multiple models of lifting devices in engineering projects. Furthermore, due to the universal and modular design of the components, maintenance and replacement are more convenient, effectively reducing equipment procurement and subsequent maintenance costs; it also reduces manual debugging time and shortens the lifting preparation cycle, thereby significantly improving overall construction efficiency. The buffer and anti-slip assembly is installed at the clamping end of the load-bearing clamp and makes direct contact with the beam flange. Through the buffer and energy absorption design of the anti-slip layer material and structure, it can prevent the beam from slipping during hoisting and absorb instantaneous impact loads during lifting and transportation, ensuring the stability of the hoisting operation and preventing damage or swaying of the beam. At the same time, the clamping end of the load-bearing clamp is arranged parallel to the width direction of the flange, which can achieve a uniform distribution of clamping force and avoid concentrated stress causing indentations or structural damage to the beam edge. In conjunction with the buffer and anti-slip assembly, it can further reduce the wear on the beam surface and effectively protect the appearance quality and internal structural integrity of the I-beam composite beam. Attached Figure Description

[0022] Figure 1 This is an assembly drawing of the I-beam composite beam hoisting tool and the I-beam composite beam in this utility model;

[0023] Figure 2 This is a front view of the I-beam composite beam hoisting tool in this utility model;

[0024] Figure 3 This is a side view of the I-beam composite beam hoisting tool of this utility model;

[0025] Figure 4 This is a schematic diagram of the load-bearing clamp in this utility model;

[0026] Figure 5 This is a schematic diagram of the main connecting beam in this utility model.

[0027] In the picture:

[0028] 100. I-beam composite beam; 101. Flange;

[0029] 1. Main connecting beam; 11. Long sliding groove; 2. Bearing clamp; 21. Second positioning hole; 22. Groove; 3. Shackle; 31. Shackle body; 32. Threaded pin; 4. Buffer anti-slip assembly. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a 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 limitation, 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 that element.

[0032] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For example, a direct connection refers to two parts or components being connected together without an intermediate component, while an indirect connection refers to two parts or components each being connected to at least one intermediate component, with the connection achieved through the intermediate component. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0034] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0035] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0036] In this utility model, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, 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 this utility model. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" of another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" of the first feature and the second feature include the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0037] Please refer to Figures 1 to 5 As shown, this embodiment provides a lifting device for an I-beam composite beam, including a main connecting beam 1, at least two load-bearing clamps 2, a buffer anti-slip assembly 4, and a lifting connector. The main connecting beam 1 is arranged across the width direction of the flange 101 of the I-beam composite beam 100. The load-bearing clamps 2 are arranged opposite each other and are located on both sides of the length direction of the main connecting beam 1, and their positions can be adjusted along the length direction of the main connecting beam 1. The clamping ends of the load-bearing clamps 2 are arranged parallel to the width direction of the flange 101 and are used to clamp the edges on both sides of the width direction of the flange 101. The buffer anti-slip assembly 4 is fixedly arranged on the clamping ends of the load-bearing clamps 2 and is in direct contact with the flange 101 to prevent the flange 101 from sliding and absorb the impact force generated during the lifting process. The lifting connector is used to fix the load-bearing clamps 2 to the main connecting beam 1 and connect them to the lifting equipment.

[0038] By arranging the main connecting beam 1 across the width direction of the flange 101 of the I-beam composite beam 100, and allowing the position of the two load-bearing clamps 2 to be adjusted along the length direction of the main connecting beam 1, while fixing their relative positions and connecting them to the lifting equipment through the lifting connector, the lifting force is transmitted to the load-bearing clamps 2 and the I-beam composite beam 100 through the lifting connector, thereby achieving the lifting of the I-beam composite beam 100. This structural design allows the lifting equipment to adapt to I-beam composite beams 100 of different specifications and widths, eliminating the need for custom-made lifting equipment for each beam type, thus significantly improving the equipment's adaptability and versatility. This structural design reduces the need to purchase multiple models of lifting equipment in engineering projects. Furthermore, due to the universal and modular design of the components, maintenance and replacement are more convenient, effectively reducing the equipment's procurement and subsequent maintenance costs. In addition, the adjustable structure of the load-bearing clamp 2 makes the on-site installation and disassembly process simpler. Different beams can be clamped and positioned quickly by simply adjusting the position of the load-bearing clamp 2, reducing manual debugging time and shortening the hoisting preparation cycle, thereby significantly improving the overall construction efficiency.

[0039] The buffer anti-slip component 4 is installed at the clamping end of the bearing clamp 2 and is in direct contact with the beam flange 101. Through the anti-slip layer material and structural buffer energy absorption design, it can prevent the beam from slipping during hoisting and absorb the instantaneous impact load during lifting and transportation, ensuring the stability of the hoisting operation and preventing damage or swaying of the beam. At the same time, the clamping end of the bearing clamp 2 is arranged parallel to the width direction of the flange 101, which can achieve a uniform distribution of clamping force and avoid concentrated stress causing indentation or structural damage to the edge of the beam. With the installation of the buffer anti-slip component 4, the wear on the surface of the beam can be further reduced, effectively protecting the appearance quality and internal structural integrity of the I-beam composite beam 100.

[0040] Combination Figure 2 and Figure 5 As shown, in some optional embodiments, the main connecting beam 1 has an elongated sliding groove 11 along its length, and the bearing clamp 2 has a second positioning hole 21 above its clamping end. The second positioning hole 21 can slide to any position of the elongated sliding groove 11. The lifting connector passes through the second positioning hole 21 and is inserted into the elongated sliding groove 11 and then fixed, so as to fix the bearing clamp 2 at any position along the length of the main connecting beam 1. The elongated sliding groove 11 allows the bearing clamp 2 to slide and position continuously along the length of the main connecting beam 1, without being limited by the hole spacing, and the clamp position can be precisely adjusted to adapt to I-shaped composite beams 100 of different widths, improving the fitting accuracy of the lifting device. Subsequently, the lifting connector directly passes through the second positioning hole 21 of the bearing clamp 2 and is inserted into the sliding groove and then fixed, thus completing the fixing or disassembly operation of the clamp without the need for a complex adjustment mechanism, simplifying the lifting preparation process and saving construction time.

[0041] In other embodiments, the main connecting beam 1 has multiple first positioning holes along its length, and the bearing clamp 2 has a second positioning hole 21 above its clamping end. The second positioning hole 21 can correspond to any of the first positioning holes. The lifting connector passes through the second positioning hole 21 and its corresponding first positioning hole in sequence to fix the bearing clamp 2 at any position along the length of the main connecting beam 1. Construction personnel can select appropriate hole positions according to the actual dimensions of the flange 101 width of the I-beam composite beam 100 and the position of the lifting point. The lifting connector passes through and locks in the first positioning hole and the second positioning hole 21 to form a stable mechanical connection, preventing the bearing clamp 2 from shifting or loosening during the lifting process, ensuring the stability and safety of the overall lifting structure, and improving the efficiency of lifting preparation.

[0042] like Figure 3 As shown, specifically, the lifting connector includes a shackle 3, which comprises a shackle body 31 and a threaded pin 32. The shackle body 31 clamps the main connecting beam 1 and the load-bearing clamp 2 at both ends. The threaded pin 32 enters from one end of the shackle body 31, passes through the main connecting beam 1 and the load-bearing clamp 2 in sequence, and is threadedly connected to the other end of the shackle body 31. The threaded pin 32, in conjunction with the shackle body 31, controls the clamping force by tightening the threaded pin 32, ensuring that the position of the load-bearing clamp 2 holding the flange 101 remains fixed during lifting. This helps maintain the beam's balance and uniform stress, allowing for fixing or disassembly operations without complex adjustment mechanisms, improving lifting and assembly efficiency, and facilitating on-site construction. Furthermore, the shackle body 31 can be, but is not limited to, a U-shaped shackle body 31. The U-shaped shackle body 31 has uniform stress distribution, a simple structure, and is easy to manufacture. It facilitates the insertion of positioning pins and locking components for fixing, and can also be connected to the lifting device via wire rope, providing a reliable lifting force point for the lifting equipment.

[0043] In other embodiments, the lifting connector includes a shackle 3, which includes a shackle body 31, a positioning pin, and a locking element. The two ends of the shackle body 31 clamp the main connecting beam 1 and the load-bearing clamp 2. The positioning pin passes through one end of the shackle body 31, sequentially through the main connecting beam 1 and the load-bearing clamp 2, and is inserted into the other end of the shackle body 31. The locking element is fastened to the positioning pin to clamp the two ends of the shackle body 31, so as to fix the main connecting beam 1 and the load-bearing clamp 2 so that their relative positions remain unchanged. Through the above design, the load-bearing clamp 2 and the main connecting beam 1 form a stable mechanical connection, which can maintain a stable position during the lifting process, avoid loosening or slippage, and ensure the safety of the lifting operation. At the same time, the positioning pin and locking element have a simple structure, which is convenient for quick installation, disassembly and adjustment on site, improves the operating efficiency, and enhances the reliability and reusability of the lifting equipment. It helps to accurately maintain the preset position of the clamp, thereby ensuring the structural integrity of the I-beam composite beam 100 during the lifting process. It is understandable that the locking component may be, but is not limited to, a nut. The outer side of the positioning pin is provided with an external thread, and the nut is connected to it. By tightening or loosening the nut, the clamping degree of the positioning pin can be controlled, thereby adjusting the fixing force of the shackle body 31 on the main connecting beam 1 and the bearing clamp 2.

[0044] like Figure 4 As shown, in some optional embodiments, the load-bearing clamp 2 includes a clamping plate with a groove 22 in the middle for clamping the edge of the flange 101. The opening direction of the groove 22 is parallel to the width direction of the flange 101, and the edge of the flange 101 can be embedded in the groove 22. The inner wall of the groove 22 is provided with a buffer anti-slip component 4. The opening direction of the groove 22 in the middle of the clamping plate is parallel to the width direction of the flange 101, allowing the flange 101 to be directly embedded in the groove 22. This ensures that the clamping force is evenly distributed along the edge, preventing concentrated stress from causing indentations or structural damage to the beam edge, and fixing the position during clamping, thereby ensuring the stability of the hoisting. Clamping and positioning can be completed without complex operations. The clamping plate is made of sheet metal (such as steel plate), with a flat surface. The shackle body 31 and the positioning pin can be fixed through holes or the groove 22, achieving a stable connection between the load-bearing clamp 2 and the main connecting beam 1. The inner wall of the groove 22 is equipped with a buffer and anti-slip component 4, which can absorb the instantaneous impact load generated during lifting and handling, while enhancing friction and preventing the beam from sliding, thereby further improving the safety and reliability of the lifting operation.

[0045] Furthermore, the clamping plate is a U-shaped clamping plate, in which the U-shaped clamping plate structure naturally forms a wrapping clamping, so that the flange 101 is fixed in position after being embedded, which improves the stable clamping ability of the load-bearing clamp 2 on the beam during the hoisting process and ensures the hoisting stability.

[0046] like Figure 4As shown, in some optional embodiments, the buffer anti-slip component 4 includes an anti-slip pad and an elastic buffer layer. The elastic buffer layer is disposed between the anti-slip pad and the inner wall of the groove 22 to buffer the contact impact between the load-bearing clamp 2 and the flange 101 during hoisting. The elastic buffer layer, located between the anti-slip pad and the inner wall of the groove 22, can absorb the instantaneous impact load generated between the load-bearing clamp 2 and the flange 101 during hoisting, reducing the peak stress on the I-beam composite beam 100, lowering the risk of structural damage, and also dispersing contact pressure to prevent stress concentration at the edge of the flange 101, avoiding indentations, scratches, or structural damage. Simultaneously, the anti-slip pad, used in conjunction with the elastic buffer layer, can increase the friction of the clamping surface, ensuring the flange 101 remains stable and does not slip within the clamping groove 22, improving the stability and safety of the hoisting process. Furthermore, the anti-slip pad can be, but is not limited to, a rubber anti-slip pad; no specific limitation is made here.

[0047] Specifically, the elastic buffer layer includes multiple layers of spring sheets, which are stacked between the anti-slip pad and the inner wall of the groove 22. When the spring sheets are stacked in multiple layers, each layer of spring sheets can absorb a portion of the impact load, so that the impact energy is gradually attenuated and is not easily over-compressed or fails, so that the buffer anti-slip component 4 still maintains effective performance when lifting the heavy I-beam composite beam 100.

[0048] To further increase friction, in this embodiment, anti-slip protrusions are provided on the contact surface between the anti-slip pad and the flange 101. The anti-slip protrusions form a partial engagement between the anti-slip pad and the contact surface of the flange 101, increasing the coefficient of friction and making it difficult for the flange 101 to slide within the clamping groove 22. This effectively prevents the I-beam composite beam 100 from shifting during hoisting, handling, or fine-tuning, thereby improving the safety and reliability of hoisting operations.

[0049] In some embodiments, the clamping plate and the main connecting beam 1 can be customized according to the width of the flange 101 of the I-beam composite beam 100 on site to adapt to beam structures of different specifications. The clamping plate is made of 36mm thick Q355B steel plate, which has high load-bearing strength and bending stiffness; the main connecting beam 1 is made of 10mm thick Q355B steel plate to ensure the stability and durability of the overall structure.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lifting device for I-beam composite beams, characterized in that, include: The main connecting beam (1) is arranged across the width direction of the flange (101) of the I-shaped composite beam (100); At least two bearing clamps (2) are arranged opposite to each other and located on both sides of the length direction of the main connecting beam (1), and both can be adjusted in position along the length direction of the main connecting beam (1). The clamping end of the bearing clamp (2) is arranged parallel to the width direction of the flange (101) and is used to clamp the edges on both sides of the width direction of the flange (101). The buffer anti-slip component (4) is fixedly installed at the clamping end of the bearing clamp (2) and directly contacts the flange (101) to prevent the flange (101) from sliding and absorb the impact force generated during the lifting process; The hoisting connector is used to fix the bearing clamp (2) to the main connecting beam (1) and connect it to the hoisting equipment.

2. The lifting device for I-beam composite beams according to claim 1, characterized in that, The main connecting beam (1) has an elongated sliding groove (11) along its length. The bearing clamp (2) has a second positioning hole (21) above its clamping end. The second positioning hole (21) can slide to any position of the elongated sliding groove (11). The hoisting connector passes through the second positioning hole (21) and is inserted into the elongated sliding groove (11) and then fixed, so as to fix the bearing clamp (2) at any position along the length of the main connecting beam (1).

3. The lifting device for I-beam composite beams according to claim 1, characterized in that, The main connecting beam (1) has a plurality of first positioning holes along its length direction. The bearing clamp (2) has a second positioning hole (21) above its clamping end. The second positioning hole (21) can correspond to any of the first positioning holes. The hoisting connector passes through the second positioning hole (21) and the corresponding first positioning hole in sequence to fix the bearing clamp (2) at any position along the length direction of the main connecting beam (1).

4. The lifting device for I-beam composite beams according to claim 2 or 3, characterized in that, The hoisting connector includes a shackle (3), which includes a shackle body (31), a positioning pin, and a locking member. The two ends of the shackle body (31) clamp the main connecting beam (1) and the load-bearing clamp (2). The positioning pin passes through one end of the shackle body (31), passes through the main connecting beam (1) and the load-bearing clamp (2) in sequence, and is inserted into the other end of the shackle body (31). The locking member is fastened to the positioning pin and is used to clamp the two ends of the shackle body (31) so as to fix the main connecting beam (1) and the load-bearing clamp (2) so that their relative positions remain unchanged.

5. The lifting device for I-beam composite beams according to claim 2 or 3, characterized in that, The hoisting connector includes a shackle (3), which includes a shackle body (31) and a threaded pin (32). The two ends of the shackle body (31) clamp the main connecting beam (1) and the bearing clamp (2). The threaded pin (32) passes through one end of the shackle body (31), passes through the main connecting beam (1) and the bearing clamp (2) in sequence, and is threaded to the other end of the shackle body (31).

6. The lifting device for I-beam composite beams according to claim 1, characterized in that, The bearing fixture (2) includes a clamping plate, and a groove (22) is provided in the middle of the clamping plate for clamping the edge of the flange (101). The opening direction of the groove (22) is parallel to the width direction of the flange (101). The edge of the flange (101) can be embedded in the groove (22). The inner wall of the groove (22) is provided with the buffer anti-slip component (4).

7. The lifting device for I-beam composite beams according to claim 6, characterized in that, The clamping plate is a U-shaped plate.

8. The lifting device for I-beam composite beams according to claim 6, characterized in that, The buffer anti-slip component (4) includes an anti-slip pad and an elastic buffer layer. The elastic buffer layer is disposed between the anti-slip pad and the inner wall of the groove (22) to buffer the contact impact between the bearing clamp (2) and the flange (101) during the hoisting process.

9. The lifting device for I-beam composite beams according to claim 8, characterized in that, The elastic buffer layer includes multiple layers of spring sheets, which are stacked between the anti-slip pad and the inner wall of the groove (22).

10. The lifting device for I-beam composite beams according to claim 9, characterized in that, The anti-slip pad has anti-slip protrusions on the contact surface with the flange (101).

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