Assembly type steel beam hoisting clamp

Abstract

The utility model provides an assembly type steel beam hoisting clamp, and relates to the technical field of steel beam hoisting equipment, and the assembly type steel beam hoisting clamp comprises a steel beam body and a hoisting clamp assembly. The hoisting clamp assembly comprises a connecting part and two claw clamping hands, the top ends of the two claw clamping hands are arranged in a relatively crossed and rotating mode and connected with the connecting part, a hoisting grabbing part is formed between the two claw clamping hands, and the two claw clamping hands are located on the outer side of the steel beam body and make contact with the outer side of the steel beam body. The two claw clamping hands are detachably provided with positioning pieces correspondingly, and the positioning pieces make contact with the steel beam body correspondingly. The two clamping claws are automatically contracted through lifting of a crane, so that the steel beam body is automatically clamped, the width of the clamp does not need to be manually adjusted, and the lifting efficiency of the steel beam body is improved. And through the arrangement of the positioning pieces, the steel beam body can be further stabilized, and the hoisting stability of the steel beam body is improved.

Description

Technical Field

[0001] This application relates to the field of steel beam lifting equipment, and more specifically, to a prefabricated steel beam lifting clamp. Background Technology

[0002] Prefabricated construction, as an important form of modern industrialized construction, boasts advantages such as high construction efficiency, controllable quality, energy conservation, and environmental protection, and has been widely promoted in the domestic and international construction fields in recent years. Steel beams, as the main load-bearing components in prefabricated buildings, directly affect the stability of the building structure due to their installation accuracy and hoisting safety. Hoisting operations are a crucial step in the construction of prefabricated steel beams, and hoisting clamps, as the core components connecting the steel beams to the lifting equipment, directly affect hoisting efficiency, construction safety, and component integrity.

[0003] For example, the H-beam prefabricated lifting clamp disclosed in Chinese application No. 202221587154.1 adopts a plug-in assembly method. The clamp width and hook position can be flexibly adjusted, making it highly adaptable and effectively enhancing the stability of lifting. The plug-in assembly is convenient, which helps to improve lifting efficiency, and the clamp can be reused, making it economical and practical. However, the width of this clamp needs to be manually adjusted, which is time-consuming and labor-intensive during lifting and clamping, reducing the efficiency of lifting steel beams. Summary of the Invention

[0004] To overcome the shortcomings of the existing system, this application provides a prefabricated steel beam lifting fixture, which solves the problem that the width of the aforementioned fixture needs to be manually adjusted, which is time-consuming and labor-intensive during lifting and clamping, thus reducing the efficiency of steel beam lifting.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is: a prefabricated steel beam hoisting clamp, including a steel beam body and a hoisting clamp assembly.

[0006] The lifting clamp assembly includes a connecting part and two claw grippers. The top ends of the two claw grippers are arranged to rotate relative to each other and are connected to the connecting part. A lifting gripping part is formed between the two claw grippers. The two claw grippers are respectively located on the outside of the steel beam body and in contact with the outside of the steel beam body. Each of the two claw grippers is detachably provided with a positioning element, and the positioning element is in contact with the steel beam body.

[0007] In one specific implementation, both positioning elements include a sleeve, which is detachably fitted onto the bottom end of the gripper. The bottom end of the sleeve is connected to a retaining spring, and the retaining spring is connected to a retaining block.

[0008] In one specific implementation, a guide rod is fixedly connected to the bottom end of the sleeve, and the guide rod is located inside the clamping spring and in contact with the clamping block.

[0009] In one specific implementation, the inner wall of the sleeve is provided with an anti-slip pad on the opposite side, and the side wall of the claw gripper is provided with a clearance groove that cooperates with the anti-slip pad.

[0010] In one specific implementation, the anti-slip pad has arc-shaped sides.

[0011] In one specific implementation, when the steel beam body is I-shaped, the positioning member abuts against the lower part of the I-shaped steel beam body.

[0012] In one specific implementation, when the steel beam body is U-shaped, the positioning member contacts the inner sidewall of the U-shaped steel beam body.

[0013] In one specific implementation, when the steel beam body is H-shaped, the positioning member contacts the inner sidewall of the H-shaped steel beam body.

[0014] The advantages of the embodiments of this application are:

[0015] 1. The two claw grippers automatically retract during crane lifting, thereby achieving automatic clamping of the steel beam body without the need for manual adjustment of the clamp width, thus improving the lifting efficiency of the steel beam body.

[0016] 2. The positioning components further stabilize the steel beam body, improving the stability of lifting the steel beam body.

[0017] 3. By detachably connecting the positioning component and the claw gripper, the orientation of the positioning end of the positioning component can be changed, allowing for tight clamping of different parts according to the structure of different steel beam bodies. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the prefabricated steel beam hoisting fixture provided in this application.

[0019] Figure 2 A schematic diagram of the lifting clamp assembly structure provided in the embodiments of this application;

[0020] Figure 3 A schematic diagram of the positioning element structure provided for an embodiment of this application;

[0021] Figure 4 A schematic diagram of the structure of Embodiment 2 provided for the implementation of this application.

[0022] In the diagram: 10 - steel beam body; 20 - lifting clamp assembly; 210 - connecting part; 220 - claw gripper; 221 - clearance groove; 230 - handle; 240 - positioning component; 241 - sleeve; 242 - clamping spring; 243 - clamping block; 250 - anti-slip pad. Detailed Implementation

[0023] The technical solution in this application embodiment is to solve the problem that the width of the aforementioned clamp needs to be manually adjusted, which is time-consuming and labor-intensive during lifting and clamping, reducing the efficiency of lifting steel beams. The overall idea is as follows:

[0024] Please see Figures 1-4 A prefabricated steel beam hoisting fixture includes a steel beam body 10 and a hoisting clamp assembly 20.

[0025] Example 1

[0026] Please see Figure 1 and Figure 2 As the main load-bearing component in prefabricated buildings, the installation accuracy and hoisting safety of the steel beam body 10 directly affect the stability of the building structure. Therefore, the quality of the steel beam body 10 directly affects the safety performance of the building structure.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The lifting clamp assembly 20 includes a connecting part 210 and two claw grippers 220. The top ends of the two claw grippers 220 are arranged opposite each other and rotatably, and connected to the connecting part 210. A lifting gripping part is formed between the two claw grippers 220. The two claw grippers 220 are respectively located on the outside of the steel beam body 10 and in contact with the outside of the steel beam body 10. Specifically, a handle 230 is fixedly connected to the outside of each of the two claw grippers 220. Each of the two claw grippers 220 is detachably provided with a positioning element 240, and the positioning element 240 is in contact with the steel beam body 10. When it is necessary to hoist the I-beam body 10, the crane moves the connecting part 210 along with the two claw grippers 220 to the steel beam body 10, then grasps the handle 230, and clamps the two claw grippers 220 at the bottom of the top horizontal plate of the I-beam body 10. Then the crane lifts the connecting part 210. Because the two claw grippers 220 are rotatably arranged relative to each other and rotatably arranged with the connecting part 210, the connecting part 210 will automatically tighten the two claw grippers 220 when it is lifted upwards, thereby clamping the steel beam body 10 inside the hoisting gripper, realizing the hoisting of the steel beam body 10. When the claw grippers 220 are located at the bottom of the top horizontal plate of the I-beam body 10, the positioning member 240 is tightly abutted against the bottom horizontal plate of the I-beam body 10. The crane automatically retracts two claw grippers 220 during lifting, thus automatically clamping the steel beam body 10 without requiring manual adjustment of the clamp width, improving the lifting efficiency of the steel beam body 10. The positioning element 240 further stabilizes the steel beam body 10, improving the stability of the lifting process. The detachable connection between the positioning element 240 and the claw grippers 220 allows the orientation of the positioning end of the positioning element 240 to be changed, enabling different clamping positions to be adjusted according to the different structures of the steel beam body 10.

[0028] When the steel beam body 10 is I-shaped, the positioning component 240 abuts tightly against the lower part of the I-shaped steel beam body 10. Both positioning components 240 include a sleeve 241, which is detachably fitted onto the bottom end of the gripper 220. A retaining spring 242 is connected to the bottom end of the sleeve 241, and a retaining block 243 is connected to the retaining spring 242. A guide rod is fixedly connected to the bottom end of the sleeve 241, located inside the retaining spring 242 and in contact with the retaining block 243. Anti-slip pads 250 are provided on opposite sides of the inner wall of the sleeve 241, and a clearance groove 221 is provided on the side wall of the gripper 220 to mate with the anti-slip pads 250. The anti-slip pads 250 have arc-shaped sides. The clamping block 243 is tightly abutted against the bottom horizontal plate of the I-beam body 10, and the clamping spring 242 can change the distance between the clamping block 243 and the sleeve 241, so as to adjust according to the distance between the first wing plate and the second wing plate of the I-beam body 10.

[0029] Example 2

[0030] Please see Figure 2 , Figure 3 and Figure 4 When the steel beam body 10 is U-shaped, the positioning element 240 contacts the inner wall of the U-shaped steel beam body 10. When the steel beam body 10 is H-shaped, the positioning element 240 contacts the inner wall of the H-shaped steel beam body 10. Specifically, when the steel beam body 10 is U-shaped or H-shaped, the sleeve 241 is fitted so that the clamping block 243, along with the clamping spring 242, is positioned at the top. This ensures that when the two claw grippers 220 are located on the two outer walls of the U-shaped or H-shaped steel beam body 10, the two clamping blocks 243, along with the clamping spring 242, are respectively located on opposite inner walls of the U-shaped or H-shaped steel beam body 10. The clamping blocks 243, along with the clamping spring 242, form a right angle with the bottom end of the claw grippers 220, thus making the clamping more stable.

[0031] When this application is used:

[0032] When it is necessary to lift the I-beam body 10, the crane moves the connecting part 210 along with the two claw grippers 220 to the steel beam body 10, then grasps the handle 230, and clamps the two claw grippers 220 at the bottom of the top horizontal plate of the I-beam body 10. Then the crane lifts the connecting part 210. Because the two claw grippers 220 are rotatably arranged relative to each other and rotatably arranged with the connecting part 210, the connecting part 210 will automatically tighten the two claw grippers 220 when it is lifted upwards, thereby clamping the steel beam body 10 inside the lifting gripper, realizing the lifting of the steel beam body 10. When the claw grippers 220 are located at the bottom of the top horizontal plate of the I-beam body 10, the positioning member 240 is tightly abutted against the bottom horizontal plate of the I-beam body 10. The crane automatically retracts two claw grippers 220 during lifting, thus automatically clamping the steel beam body 10 without requiring manual adjustment of the clamp width, improving the lifting efficiency of the steel beam body 10. The positioning element 240 further stabilizes the steel beam body 10, improving the stability of the lifting process. The detachable connection between the positioning element 240 and the claw grippers 220 allows the orientation of the positioning end of the positioning element 240 to be changed, enabling different clamping positions to be adjusted according to the different structures of the steel beam body 10.

[0033] In summary, this application achieves automatic clamping of the steel beam body 10 by automatically retracting the two claw grippers 220 during crane lifting, eliminating the need for manual adjustment of the clamp width and improving the lifting efficiency of the steel beam body 10.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A prefabricated steel beam hoisting clamp, characterized in that, include Steel beam body (10); The lifting clamp assembly (20) includes a connecting part (210) and two claw grippers (220). The top ends of the two claw grippers (220) are arranged to rotate relative to each other and connected to the connecting part (210). A lifting gripping part is formed between the two claw grippers (220). The two claw grippers (220) are respectively located on the outside of the steel beam body (10) and in contact with the outside of the steel beam body (10). Each of the two claw grippers (220) is detachably provided with a positioning element (240), and the positioning element (240) is in contact with the steel beam body (10).

2. The prefabricated steel beam hoisting fixture as described in claim 1, characterized in that, Both positioning elements (240) include a sleeve (241), which is detachably fitted onto the bottom end of the claw gripper (220). A retaining spring (242) is connected to the bottom end of the sleeve (241), and a retaining block (243) is connected to the retaining spring (242).

3. The prefabricated steel beam hoisting clamp as described in claim 2, characterized in that, The bottom end of the sleeve (241) is fixedly connected to a guide rod, which is located inside the clamping spring (242) and in contact with the clamping block (243).

4. The prefabricated steel beam hoisting fixture as described in claim 2, characterized in that, The inner wall of the sleeve (241) is provided with an anti-slip pad (250) on the opposite side, and the side wall of the claw gripper (220) is provided with a relief groove (221) that cooperates with the anti-slip pad (250).

5. The prefabricated steel beam hoisting fixture as described in claim 4, characterized in that, The anti-slip mat (250) has arc-shaped sides.

6. The prefabricated steel beam hoisting clamp as described in claim 1, characterized in that, When the steel beam body (10) is I-shaped, the positioning member (240) abuts against the lower part of the I-shaped steel beam body (10).

7. The prefabricated steel beam hoisting clamp as described in claim 1, characterized in that, When the steel beam body (10) is U-shaped, the positioning member (240) contacts the inner side wall of the U-shaped steel beam body (10).

8. The prefabricated steel beam hoisting clamp as described in claim 1, characterized in that, When the steel beam body (10) is H-shaped, the positioning member (240) contacts the inner side wall of the H-shaped steel beam body (10).

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