Fixture applied to steel beam hanging object in steel structure engineering

Abstract

The utility model belongs to the technical field of steel beam clamps, and particularly relates to a clamp for steel beam hoisting in steel structure engineering. Comprising a clamp body; the hanging ring is arranged on the clamp body, and the hanging ring is used for being connected with hoisting equipment; a through hole is formed in the steel beam; the lock shaft is arranged at the lower part of the clamp body and penetrates through the through hole of the steel beam; the clamping assembly is arranged on the lock shaft, the clamping assembly comprises at least two sets of movable clamping jaws and torsion springs, and the clamping jaws achieve opening and closing actions through the torsion springs to clamp the steel beam; and the unlocking assembly is arranged in the lock shaft and used for unlocking the clamping jaw to unload the steel beam. The utility model provides a clamp applied to steel beam hoisting in steel structure engineering, which can simply, quickly and safely clamp a steel beam and effectively shorten the working time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel beam clamp technical field especially relates to a steel structure engineering application steel beam hoist thing's clamp. BACKGROUND

[0002] In the modern steel structure engineering field, steel beam, especially I-beam, because of its unique I-shaped cross section, has good bearing capacity and stability, and is widely used in the roof support structure of various buildings. In the construction process, the steel beam is accurately hoisted to the predetermined position of the roof by using hoisting equipment and welded, which is the key link of building a stable roof structure.

[0003] In this process, the hoisting of the steel beam by the hoisting equipment depends on the effective positioning of the clamp on the steel beam. However, the widely used clamp on the market has significant drawbacks. When positioning the steel beam, the existing clamp generally adopts the screwing of the bolt to realize the opening and closing operation of the clamp. This operation process is relatively cumbersome, and in the construction site, the worker needs to spend a certain amount of time to complete the screwing of the bolt each time the steel beam is hoisted, in order to realize the connection or separation of the clamp and the steel beam. Especially in large-scale steel structure engineering construction, such operations are frequently performed, and the cumulative time consumed is considerable, which seriously affects the construction progress and efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned technical problems, and provides a steel structure engineering application steel beam hoist thing's clamp which can simply, quickly and safely clamp the steel beam and effectively shorten the working time.

[0005] Therefore, the utility model provides a steel structure engineering application steel beam hoist thing's clamp, which comprises:

[0006] A clamp body;

[0007] A hanging ring is arranged on the clamp body, and the hanging ring is used for connecting with the hoisting equipment;

[0008] A steel beam, a through hole is arranged on the steel beam;

[0009] A lock shaft is arranged at the lower part of the clamp body, and the lock shaft penetrates the through hole of the steel beam;

[0010] A clamping assembly is arranged on the lock shaft, and the clamping assembly comprises at least two groups of movable clamping jaws and torsion springs, the clamping jaws are opened and closed by the torsion springs, and the clamping jaws clamp the steel beam;

[0011] An unlocking assembly is arranged in the lock shaft, and is used for unlocking the clamping jaws to realize the unloading of the steel beam.

[0012] In the above technical scheme, further, the unlocking assembly comprises:

[0013] A groove is formed on the outer surface of the upper side of the lock shaft;

[0014] Connecting plates are provided on the grooves, and there are multiple connecting plates, which are symmetrically distributed.

[0015] A rotating shaft is rotatably positioned between two connecting plates on the same side, and the grippers are connected to the rotating shaft.

[0016] Brake block, mounted on the rotating shaft;

[0017] The guide groove is formed inside the lock shaft and extends outward through the lock shaft;

[0018] A through groove is formed on the groove. The through groove is connected to the guide groove, and one end of the brake block extends into the through groove.

[0019] The actuating rod is slidably set in the guide groove, with one end of the actuating rod extending out of the guide groove, and the actuating rod cooperates with the brake block;

[0020] A guide rod is mounted on the actuating rod, located within a guide groove, and slidably connected to the locking shaft.

[0021] A return spring is sleeved on the guide rod and positioned between the locking shaft and the actuating rod.

[0022] In any of the above technical solutions, the fixture body is further provided with a locking component for adjusting the relative position of the gripper and the steel beam to accommodate steel beams of different sizes and specifications.

[0023] In any of the above technical solutions, the locking component further includes:

[0024] The slot is formed on the fixture body, and the locking shaft is slidably connected to the slot.

[0025] A stud is mounted on the locking shaft and passes through a slot.

[0026] A nut is placed on a stud, and the nut and stud are threaded together.

[0027] In any of the above technical solutions, the stud is further provided with a connecting groove, the connecting groove is connected to the guide groove, the actuating rod passes through the connecting groove and is slidably connected to the connecting groove.

[0028] In any of the above technical solutions, furthermore, the surface of the groove that contacts the steel beam is provided with an anti-slip structure, which is an anti-slip texture or a rubber pad.

[0029] In any of the above technical solutions, the hanging ring is further connected to the clamp body via a movable connecting component.

[0030] The beneficial effects of this utility model are:

[0031] 1. The user presses the clamp, and the clamp rotates to a horizontal position under the action of the torsion spring. The locking shaft is aligned with the pre-drilled through hole on the steel beam and inserted, allowing the steel beam to pass smoothly through the clamp on the locking shaft. Then, the clamp is in a closing tendency under the action of the torsion spring, causing the clamp to rotate in the opposite direction to clamp the steel beam. This achieves a quick connection between the clamp and the steel beam, eliminating the need to spend time tightening bolts to clamp the steel beam as with traditional clamps. This reduces the time spent on clamp operation during construction and ensures that the construction progress can be advanced more efficiently.

[0032] 2. When the steel beam is hoisted to the designated position and needs to be unloaded, the user pushes the rod to slide in the guide groove, which contacts the brake block and pushes the brake block to move. The brake block drives the gripper to rotate to a horizontal state, thereby releasing the clamping state on the steel beam. In this way, the steel beam can be reliably clamped and can be easily unlocked when needed, improving the convenience and safety of steel beam hoisting operations.

[0033] 3. Push the locking shaft to slide in the slot, thereby changing the relative position of the jaws and the steel beam, so that the jaws can move to a suitable position to adapt to the width of the steel beam and ensure that the jaws can effectively clamp the steel beam; after adjusting the relative position of the jaws and the steel beam to a suitable state, tighten the nut. The nut rotates on the stud and gradually tightens to ensure the stability and reliability of the clamping, so as to carry out the steel beam hoisting operation safely and efficiently.

[0034] 4. An anti-slip structure is installed on the surface of the groove that contacts the steel beam to enhance the friction between the clamp and the steel beam, prevent relative sliding between the steel beam and the clamp during hoisting, ensure the stability and safety of the steel beam hoisting process, avoid safety accidents such as falling due to steel beam slippage, and also help improve construction accuracy to ensure that the steel beam can be accurately hoisted to the predetermined position. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 This is a first cross-sectional view of the unlocking component of this utility model;

[0037] Figure 3 This is a second cross-sectional view of the unlocking component of this utility model;

[0038] Figure 4 This is a cross-sectional view of the locking component of this utility model;

[0039] Figure 5 This is an initial state diagram of the locking component of this utility model;

[0040] Figure 6 This is a diagram showing the usage status of the locking component of this utility model;

[0041] The attached figures are labeled as follows: 1. Clamp body; 2. Hanging ring; 3. Steel beam; 31. Through hole; 4. Locking shaft; 5. Clamping assembly; 51. Gripper; 52. Torsion spring; 6. Unlocking assembly; 61. Groove; 62. Connecting plate; 63. Rotating shaft; 64. Brake block; 65. Guide groove; 66. Through groove; 67. Actuating rod; 68. Guide rod; 69. Return spring; 7. Locking assembly; 71. Slot; 72. Stud; 73. Nut; 8. Connecting groove; 9. Anti-slip structure; 10. Movable connecting assembly. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0044] Example 1:

[0045] like Figures 1-6 As shown, this embodiment provides a clamp for lifting steel beams in steel structure engineering, including:

[0046] Fixture body 1;

[0047] Hanging ring 2 is set on clamp body 1 and is used to connect with lifting equipment;

[0048] Steel beam 3, with through hole 31 opened on steel beam 3;

[0049] Locking shaft 4 is located at the lower part of clamp body 1, and the locking shaft 4 passes through the through hole 31 of steel beam 3;

[0050] The clamping assembly 5 is mounted on the locking shaft 4. The clamping assembly 5 includes at least two sets of movable jaws 51 and torsion springs 52. The jaws 51 open and close through the torsion springs 52 to clamp the steel beam 3.

[0051] Unlocking component 6, located inside locking shaft 4, is used to unlock gripper 51 to unload steel beam 3.

[0052] In this technical solution, a hanging ring 2 is provided on the clamp body 1. The lifting equipment is connected to the hanging ring 2 to lift the entire clamp. When it is necessary to lift the steel beam 3, the locking shaft 4 is aligned with the pre-drilled through hole 31 on the steel beam 3 and inserted. At this time, the clamping component 5 provided on the locking shaft 4 plays a role. The user presses the jaw 51, and the jaw 51 rotates to a horizontal state under the action of the torsion spring 52, so that the steel beam 3 can pass smoothly through the jaw 51 on the locking shaft 4. Then the user releases the jaw 51, and the jaw 51 is in a closed tendency under the action of the torsion spring 52. The torsion spring 52 provides elastic force to the jaw 51, so that the jaw 51 can rotate in the opposite direction to clamp the steel beam 3, realizing the quick connection between the clamp and the steel beam 3, without having to spend time tightening bolts to clamp the steel beam 3 as with traditional clamps. After the clamp 51 clamps the steel beam 3, the lifting equipment lifts the clamp via the hanging ring 2. Because the clamp 51 firmly holds the steel beam 3, it can be stably lifted and transported to the designated position. When the steel beam 3 reaches the predetermined position and needs to be unloaded, the unlocking component 6 comes into play. By operating the unlocking component 6 located in the locking shaft 4, the user overcomes the force of the torsion spring 52, causing the clamp 51 to overcome the elastic force of the torsion spring 52 and rotate to a horizontal position, thereby releasing the clamping state on the steel beam 3. At this time, the steel beam 3 can be smoothly detached from the clamp, completing the unloading of the steel beam 3. The entire process does not require complex operations such as tightening bolts, achieving a quick and convenient separation of the steel beam 3 from the clamp. By abandoning the traditional bolt tightening method to achieve the connection and separation of the clamp and the steel beam 3, the convenience of connecting or separating the clamp and the steel beam 3 is greatly improved, reducing the time spent on clamp operations during construction, thereby improving the overall efficiency of the steel beam 3 hoisting operation in steel structure engineering and ensuring that the construction progress can be advanced more efficiently.

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in this embodiment, the optimized unlocking component 6 includes:

[0054] Groove 61 is formed on the upper outer surface of lock shaft 4;

[0055] A connecting plate 62 is disposed on the groove 61. There are multiple connecting plates 62, which are symmetrically distributed.

[0056] A rotating shaft 63 is rotatably disposed between two connecting plates 62 on the same side, and a gripper 51 is connected to the rotating shaft 63.

[0057] Brake block 64 is mounted on rotating shaft 63;

[0058] The guide groove 65 is opened inside the locking shaft 4 and extends outward through the locking shaft 4;

[0059] A through groove 66 is formed on the groove 61. The through groove 66 is connected to the guide groove 65, and one end of the brake block 64 extends into the through groove 66.

[0060] The actuating rod 67 is slidably disposed in the guide groove 65, with one end of the actuating rod 67 extending out of the guide groove 65, and the actuating rod 67 cooperating with the brake block 64.

[0061] Guide rod 68 is mounted on actuating rod 67. Guide rod 68 is located in guide groove 65 and is slidably connected to locking shaft 4.

[0062] The return spring 69 is sleeved on the guide rod 68 and positioned between the locking shaft 4 and the actuating rod 67.

[0063] In this technical solution, during the hoisting of the steel beam 3, the clamping jaws 51 in the clamping assembly 5 clamp the steel beam 3 under the action of the torsion spring 52. At this time, one end of the brake block 64 extends into the through groove 66 on the groove 61 and maintains a certain relative position with the actuating rod 67. The return spring 69 is in normal condition, and the actuating rod 67 does not undergo significant displacement within the guide groove 65. When the steel beam 3 is hoisted to the designated position and needs to be unloaded, the user applies an external force to one end of the actuating rod 67 that extends out of the guide groove 65, pushing the actuating rod 67 to slide within the guide groove 65. The guide rod 68 cooperates with the guide groove 65 to ensure that the actuating rod 67 can only slide linearly along the direction of the guide groove 65. As the actuating rod 67 slides, it contacts the brake block 64 and pushes the brake block 64 to move. The brake block 64 is mounted on the rotating shaft 63, and the movement of the brake block 64 drives the rotating shaft 63 to rotate. Since the gripper 51 is connected to the rotating shaft 63, the rotation of the rotating shaft 63 causes the gripper 51 to overcome the elastic force of the torsion spring 52 and rotate to a horizontal state, thereby releasing the clamping state on the steel beam 3. After the steel beam 3 is unloaded, the external force acting on the action rod 67 is removed, and the return spring 69 begins to function. Its elastic force pushes the action rod 67 to slide in the opposite direction and return to the initial position. At this time, the action rod 67 and the brake block 64 maintain a certain relative position. Under the return action of the torsion spring 52, the brake block 64 moves in the opposite direction, and the rotating shaft 63 also rotates in the opposite direction. The gripper 51 returns to the closed tendency state under the action of the torsion spring 52, preparing for the next hoisting operation of the steel beam 3. In order to safely and conveniently release the clamping state of the gripper 51 on the steel beam 3, so that the steel beam 3 can be smoothly unloaded from the fixture after being hoisted to the designated position. This component enables precise control over the opening and closing state of the gripper 51, ensuring that the entire clamping system can reliably clamp the steel beam 3 during hoisting operations and can easily unlock it when needed, thus improving the convenience and safety of the steel beam 3 hoisting operation.

[0064] Example 2:

[0065] This embodiment provides a clamp for lifting steel beams in steel structure engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0066] like Figure 1 As shown, in this embodiment, the optimized clamp body 1 is provided with a locking component 7 for adjusting the relative position of the clamping claw 51 and the steel beam 3, so as to accommodate steel beams 3 of different sizes and specifications.

[0067] In this technical solution, the locking component 7 is designed to enable the clamp to flexibly adapt to steel beams 3 of different sizes and specifications. By adjusting the relative position of the jaws 51 and the steel beam 3, it is ensured that during hoisting operations, regardless of changes in the size of the steel beam 3, the clamp can firmly and accurately clamp the steel beam 3, avoiding situations where the clamp cannot effectively clamp or is not firmly clamped due to differences in the size of the steel beam 3. This improves the versatility and practicality of the clamp, meeting the diverse hoisting needs of steel structure engineering.

[0068] like Figures 1-6 As shown, in this embodiment, the optimized locking component 7 includes:

[0069] Slot 71 is formed on the fixture body 1, and locking shaft 4 is slidably connected to slot 71;

[0070] Stud 72 is mounted on locking shaft 4 and passes through slot 71;

[0071] Nut 73 is provided on stud 72, and nut 73 is threadedly engaged with stud 72.

[0072] In this technical solution, the locking shaft 4 is slidably connected to the slot 71 on the clamp body 1, which allows the locking shaft 4 to move within the clamp body 1. The stud 72 is fixed to the locking shaft 4 and passes through the slot 71. The nut 73 is threadedly engaged with the stud 72. Initially, the nut 73 is tightened onto the stud 72, fixing the locking shaft 4 in a certain position. When dealing with steel beams 3 of different sizes, it is necessary to adjust the relative position of the clamp 51 and the steel beam 3. At this time, the nut 73 is loosened, releasing the tightening force between it and the stud 72. Since the locking shaft 4 is slidably connected to the slot 71, after loosening the nut 73, the locking shaft 4 can be manually pushed to slide within the slot 71. The sliding of the locking shaft 4 will cause the clamping assembly 5 (clamp 51, etc.) to move together, thereby changing the relative position of the clamp 51 and the steel beam 3. For example, when the steel beam 3 is wide, the locking shaft 4 can be slid outwards, allowing the gripper 51 to move to a suitable position to accommodate the width of the steel beam 3; if the steel beam 3 is narrow, the locking shaft 4 can be slid inwards to ensure that the gripper 51 can effectively clamp the steel beam 3. After adjusting the relative position of the gripper 51 and the steel beam 3 to a suitable state, the nut 73 is tightened again. The nut 73 rotates on the stud 72 and gradually tightens. Through the pressure between the nut 73 and the clamp body 1, the locking shaft 4 is firmly fixed in the current position, ensuring that the gripper 51 will not be displaced due to external forces or other factors during the hoisting of the steel beam 3, thus ensuring the stability and reliability of the clamping, and enabling safe and efficient hoisting operations of the steel beam 3.

[0073] like Figure 1 and Figure 2As shown, in this embodiment, the stud 72 is optimized to have a connecting groove 8, which is connected to the guide groove 65. The actuating rod 67 passes through the connecting groove 8 and is slidably connected to the connecting groove 8.

[0074] In this technical solution, when the relative position of the gripper 51 and the steel beam 3 is adjusted by the locking assembly 7, the nut 73 is loosened, allowing the locking shaft 4 to slide within the slot 71. At this time, the stud 72 moves along with the locking shaft 4. Since the connecting slot 8 is connected to the guide slot 65, and the actuating rod 67 passes through the connecting slot 8 and is slidably connected to it, the actuating rod 67 also slides along with the stud 72 and the locking shaft 4. This design ensures that during the adjustment of the gripper 51 position, components such as the actuating rod 67 in the unlocking assembly 6 can move synchronously and in coordination, without interference or jamming due to position changes, ensuring the stability of the entire clamp structure during position adjustment. During the unlocking operation, the user pushes the actuating rod 67 to slide within the guide slot 65, thereby pushing components such as the brake block 64 to unlock the gripper 51. Since the actuating rod 67 passes through the connecting slot 8 and can slide within it, the connecting slot 8 provides additional guidance and support for the sliding of the actuating rod 67. When the actuating rod 67 is pushed, the connecting groove 8 restricts the movement direction of the actuating rod 67, so that it can only slide along the predetermined direction, ensuring that the unlocking operation can be carried out accurately and smoothly, and preventing the actuating rod 67 from deviating or shaking during the sliding process, thereby improving the reliability and accuracy of the unlocking operation and ensuring that the clamping state of the gripper 51 on the steel beam 3 can be effectively released.

[0075] Example 3:

[0076] This embodiment provides a clamp for lifting steel beams in steel structure engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0077] like Figures 3-5 As shown, in this embodiment, the optimized surface of the groove 61 that contacts the steel beam 3 is provided with an anti-slip structure 9, which is an anti-slip texture or a rubber pad.

[0078] In this technical solution, an anti-slip structure 9 is provided on the surface of the groove 61 that contacts the steel beam 3. The main purpose is to enhance the friction between the clamp and the steel beam 3, preventing relative sliding between the steel beam 3 and the clamp during hoisting. This is crucial for ensuring the stability and safety of the steel beam 3 during hoisting, avoiding safety accidents such as falling due to the slippage of the steel beam 3. It also helps to improve construction accuracy, ensuring that the steel beam 3 can be accurately hoisted to the predetermined position.

[0079] When the surface of the groove 61 is provided with anti-slip texture, these textures increase the roughness of the contact surface between the groove 61 and the steel beam 3. During the hoisting process, the steel beam 3 contacts the groove 61 and bears the clamping force from the gripper 51. The anti-slip texture makes the contact surface no longer smooth, and the surface of the steel beam 3 interlocks with the anti-slip texture. This interlocking action greatly increases the friction, hindering the tendency of the steel beam 3 to slide within the groove 61. For example, when the lifting equipment moves or adjusts the position of the steel beam 3, even if an external force attempts to make the steel beam 3 slide within the groove 61, the friction generated by the anti-slip texture can effectively resist the external force, keeping the steel beam 3 in a stable clamped state.

[0080] If the surface of the groove 61 is fitted with a rubber pad, the rubber itself possesses good elasticity and adhesion. When the steel beam 3 comes into contact with the rubber pad, the rubber pad will deform to a certain extent under the pressure of the steel beam 3, tightly adhering to the slight irregularities on the surface of the steel beam 3. Simultaneously, the adhesiveness of the rubber will generate additional adhesive force. During hoisting, the elastic deformation of the rubber pad will exert continuous pressure on the steel beam 3, further increasing friction and preventing the steel beam 3 from sliding. Its adhesive force can also, to a certain extent, prevent relative displacement between the steel beam 3 and the rubber pad, thereby achieving a stable clamping effect and ensuring the safety and stability of the steel beam 3 during hoisting.

[0081] like Figure 1 and Figure 5 As shown, in this embodiment, the optimized hanging ring 2 is connected to the clamp body 1 via the movable connecting component 10.

[0082] In this technical solution, the lifting ring is connected to the clamp body 1 via a movable connection assembly 10, significantly improving the flexibility and adaptability of the entire steel beam 3 lifting clamp in actual operation. In the complex construction environment of steel structure engineering, the lifting direction, angle, and position of the steel beam 3 require frequent and varied adjustments. This movable connection design allows the lifting ring to flexibly change its relative position and angle with the clamp body 1 according to the real-time needs of the lifting operation, effectively avoiding operational inconvenience caused by directional or angular limitations during lifting, and greatly improving construction efficiency. Simultaneously, the movable connection can also alleviate stress concentration problems caused by uneven force during lifting to a certain extent, extending the service life of the clamp and ensuring construction safety.

[0083] Working Principle: The movable connection assembly 10 typically contains various mechanical structures to achieve its function. Common structures include universal joints, pin and bushing combinations, etc. Taking the pin and bushing combination as an example, the lifting ring is installed in the bushing via the pin, and the bushing is fixed to the clamp body 1. Before the lifting operation begins, when it is necessary to adjust the lifting direction of the steel beam 3, the lifting equipment applies a force to the lifting ring. Due to the certain gap between the pin and the bushing, the lifting ring can rotate around the pin. For example, if the lifting equipment needs to lift the steel beam 3 at an inclined angle, the lifting ring can rotate around the pin under the applied force until a suitable inclined angle is reached, thereby driving the clamp body 1 and the clamped steel beam 3 to adjust to the required posture.

[0084] During the lifting process, when the steel beam 3 is subjected to wind or other external forces from different directions, the lifting ring can automatically adjust its angle with the help of the movable connecting assembly 10 to offset part of the impact of the external forces on the clamp body 1 and the steel beam 3. In this process, the movable connecting assembly 10 plays a role in buffering and adjusting, making the stress borne by the clamp body 1 more uniform, avoiding damage due to excessive local stress, and ensuring the stability and safety of the entire lifting process.

[0085] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A clamp for lifting steel beams in steel structure engineering, characterized in that, include: Fixture body (1); Hanging ring (2) is set on the clamp body (1) and is used to connect with lifting equipment; A steel beam (3) is provided with a through hole (31); The locking shaft (4) is located at the lower part of the clamp body (1), and the locking shaft (4) passes through the through hole (31) of the steel beam (3). The clamping assembly (5) is set on the locking shaft (4). The clamping assembly (5) includes at least two sets of movable jaws (51) and torsion springs (52). The jaws (51) open and close through the torsion springs (52) to clamp the steel beam (3). The unlocking component (6) is located inside the locking shaft (4) and is used to unlock the gripper (51) to unload the steel beam (3).

2. The clamp for lifting steel beams in steel structure engineering according to claim 1, characterized in that, The unlocking component (6) includes: A groove (61) is formed on the upper outer surface of the locking shaft (4); A connecting plate (62) is disposed on the groove (61), and there are multiple connecting plates (62) arranged symmetrically; A rotating shaft (63) is rotatably disposed between two connecting plates (62) on the same side, and the gripper (51) is connected to the rotating shaft (63); Braking block (64) is disposed on the rotating shaft (63); A guide groove (65) is formed inside the locking shaft (4) and extends outward through the locking shaft (4). A through groove (66) is formed on the groove (61), the through groove (66) is connected to the guide groove (65), and one end of the brake block (64) extends into the through groove (66); An actuating rod (67) is slidably disposed in the guide groove (65), with one end of the actuating rod (67) extending out of the guide groove (65), and the actuating rod (67) cooperating with the brake block (64); A guide rod (68) is disposed on the actuating rod (67), the guide rod (68) is located in the guide groove (65), and the guide rod (68) is slidably connected to the locking shaft (4); A reset spring (69) is sleeved on the guide rod (68) and positioned between the locking shaft (4) and the actuating rod (67).

3. The clamp for lifting steel beams in steel structure engineering according to claim 2, characterized in that, The clamp body (1) is provided with a locking component (7) for adjusting the relative position of the clamp (51) and the steel beam (3) to accommodate steel beams (3) of different sizes and specifications.

4. The clamp for lifting steel beams in steel structure engineering according to claim 3, characterized in that, The locking component (7) includes: A slot (71) is formed on the fixture body (1), and the locking shaft (4) is slidably connected to the slot (71); A stud (72) is disposed on the locking shaft (4), and the stud (72) passes through the slot (71); A nut (73) is provided on the stud (72), and the nut (73) is threadedly engaged with the stud (72).

5. A clamp for lifting steel beams in steel structure engineering according to claim 4, characterized in that, The stud (72) is provided with a connecting groove (8), which is connected to the guide groove (65). The actuating rod (67) passes through the connecting groove (8) and is slidably connected to the connecting groove (8).

6. A clamp for lifting steel beams in steel structure engineering according to claim 2, characterized in that, The surface of the groove (61) that contacts the steel beam (3) is provided with an anti-slip structure (9), which is an anti-slip pattern or a rubber pad.

7. A clamp for lifting steel beams in steel structure engineering according to claim 1, characterized in that, The hanging ring (2) is connected to the clamp body (1) via a movable connecting component (10).

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