Life rope suspension device for steel structure construction environment

Abstract

The life rope suspension device for the steel structure construction environment comprises a claw clamping assembly and a hoisting rod, the claw clamping assembly comprises a connecting plate and a hinge seat located below the connecting plate, two sets of crank arms are symmetrically arranged on the two sides of the hinge seat, and the sides, close to the middle, of the crank arms are hinged to the connecting plate together; the hoisting rod is arranged at the center of the bottom of the hinge seat and comprises an outer rod and an inner rod which are arranged together in a telescopic mode, the outer rod is fixedly arranged at the center of the bottom of the hinge seat, the inner rod penetrates through the hinge seat and is arranged together with the connecting plate, and an unlocking assembly is arranged on the side wall of the outer rod. And the unlocking assembly is used for controlling the telescopic action of the inner rod, and the problems that an existing life rope fixing support is difficult to dismantle in a welding fixing mode, the welding portion of a steel structure can be damaged to different degrees in the dismantling process, the dismantling cost is increased, and the overall strength and stability of the steel structure are affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of lifeline suspension technology, and more specifically, to a lifeline suspension device for steel structure construction environments. Background Technology

[0002] In steel structure construction environments, lifelines play a crucial role as essential equipment for ensuring the safety of workers at heights. They are typically used to connect safety gear and facilitate high-altitude operations for construction workers. The use of safety ropes is particularly important for securing them with brackets. Additional fixing points or brackets must be added to key locations such as I-beams and steel beams to secure the lifeline. These fixing points must possess sufficient strength and stability to support the safety gear and workers suspended above them, ensuring absolute safety during the construction process.

[0003] Currently, most common lifeline supports on the market are fixed to the flange plates of I-beams by direct welding. Although this method can provide relatively stable support, once the support is installed, it becomes extremely difficult to dismantle. More importantly, the dismantling process often causes varying degrees of damage to the welded parts of the steel structure, which not only increases the dismantling cost but may also affect the overall strength and stability of the steel structure. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a lifeline suspension device for steel structure construction environments, which solves the aforementioned problems.

[0005] This utility model is implemented as follows:

[0006] A lifeline suspension device for steel structure construction environments includes a claw clamp assembly and a lifting rod. The claw clamp assembly includes a connecting plate and a hinge seat located below the connecting plate. Two sets of curved arms are symmetrically arranged on both sides of the hinge seat. The curved arms are hinged to the connecting plate near the middle side, and a clamping plate is provided at the other end of the curved arms. The lifting rod is located at the bottom center of the hinge seat and includes an outer rod and an inner rod that are telescopically connected together. The outer rod is fixedly located at the bottom center of the hinge seat, and the inner rod passes through the hinge seat and is connected to the connecting plate. An unlocking assembly is provided on the side wall of the outer rod, and the unlocking assembly is used to control the telescopic movement of the inner rod.

[0007] In an embodiment of this utility model, the crank arm includes a first hinge portion and a second hinge portion. Two sets of triangular plates are bolted to the two sides of the connecting plate. The first hinge portion of the crank arm is hinged to the hinge seat, and the second hinge portion is hinged to the inner side of the triangular plates.

[0008] In an embodiment of this utility model, a first movable hole is provided at the center of the bottom of the hinge seat, the outer rod is coaxial with the first movable hole, the inner rod passes through the first movable hole and is bolted together with the connecting plate, a first abutment spring is provided on the inner bottom wall of the outer rod, and a pressure relief hole extending to the outside is provided on the inner side wall of the outer rod near the bottom, and a lifting ring is provided at the bottom of the outer rod, the lifting ring being connected to an external lifeline.

[0009] In an embodiment of this utility model, the unlocking assembly includes a control box disposed on the outer side wall of the outer rod. The control box has a channel extending into the interior of the outer rod on the side away from the outer rod. The top of the control box has a movable groove extending into the channel. A pin is elastically disposed in the channel. A lever is hinged in the movable groove. The lever is used to control the movement of the pin in the extension direction of the channel. A pin hole is disposed on the side wall of the inner rod near the bottom. When the inner rod is moved until the pin hole is coaxial with the channel, the pin is embedded in the pin hole.

[0010] In an embodiment of this utility model, a first boss is formed on the outer side of the pin near the inner rod, and a second boss is provided on the side of the channel near the inner rod, which limits the first boss.

[0011] In an embodiment of this utility model, after the pin is inserted into the channel from the outside, it is fixed by a bolt, and a second abutting spring is provided between the bolt and the pin.

[0012] In an embodiment of this utility model, the top of the pin is provided with an embedding groove, and the bottom of the lever is provided with a protrusion, the protrusion being embedded in the embedding groove.

[0013] In an embodiment of this utility model, after the inner rod extends to its maximum length, its bottom end is always located on the moving path of the pin.

[0014] The beneficial effects of this utility model are as follows: Through the design of the claw clamp assembly and the lifting rod, this utility model achieves rapid fixing and disassembly on the I-beam steel beam. Specifically, when no external force is applied to this device, the inner rod moves upward under the action of the first anti-spring, thereby opening the claw clamp assembly. During use, the connecting plate abuts against the I-beam steel beam, which in turn pushes the inner rod downward until the pin in the unlocking assembly is embedded in the pin hole of the inner rod, that is, the claw clamp assembly is tightened and fixed. When it is necessary to open, the pin is moved away from the inner rod by the lever. At this time, the inner rod, without the restriction of the pin, moves upward under the action of the first anti-spring, thereby unfolding the claw clamp assembly, which can then be removed from the I-beam steel beam. Compared with the traditional welding fixing method, this design greatly improves construction efficiency, reduces the time and labor costs required for installation and disassembly, and avoids the dismantling difficulties and damage to the steel structure caused by the traditional welding fixing method. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the lifeline suspension device provided for an embodiment of this utility model;

[0017] Figure 2 A partially exploded structural diagram of the lifeline suspension device provided for an embodiment of this utility model;

[0018] Figure 3 A cross-sectional structural schematic diagram of the lifeline suspension device provided for an embodiment of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 A schematic diagram of the structure of an embodiment provided for the present utility model.

[0021] In the diagram: 10. Claw clamp assembly; 11. Connecting plate; 12. Triangular plate; 13. Hinge seat; 1301. First movable hole; 1302. Second movable hole; 14. Crank arm; 1401. First hinge part; 1402. Second hinge part; 15. Clamping plate; 20. Lifting rod; 21. Outer rod; 2101. Lifting ring; 2102. Pressure relief hole; 22. Inner rod; 2201. Pin hole; 23. First abutment spring; 24. Guide rod; 25. Unlocking assembly; 251. Control box; 2511. Movable groove; 2512. Channel; 252. Lever; 253. Pin; 2531. Embedded groove; 254. Second abutment spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] like Figure 1-4 As shown, this utility model provides a lifeline suspension device for steel structure construction environments, including a claw clamp assembly 10 and a lifting rod 20. The claw clamp assembly 10 includes a connecting plate 11 and a hinge seat 13 located below the connecting plate 11. Two sets of curved arms 14 are symmetrically arranged on both sides of the hinge seat 13. The curved arms 14 are hinged to the connecting plate 11 near the middle. A clamping plate 15 is provided at the other end of the curved arms 14. The lifting rod 20 is located at the bottom center of the hinge seat 13, and the lifting rod 20 includes an extension. The outer rod 21 and inner rod 22 are retracted together. The outer rod 21 is fixedly installed at the bottom center of the hinge seat 13, and the inner rod 22 passes through the hinge seat 13 and is installed together with the connecting plate 11. The side wall of the outer rod 21 is provided with an unlocking component 25, which is used to control the extension and retraction of the inner rod 22. By setting the unlocking component 25 on the hoisting rod 20 to control the opening and closing of the claw clamp component 10, the quick fixing and disassembly on the I-beam can be realized, and this process will not damage the steel structure.

[0025] In this embodiment, the crank arm 14 includes a first hinge portion 1401 and a second hinge portion 1402. Two sets of triangular plates 12 are bolted to the two sides of the connecting plate 11. The first hinge portion 1401 of the crank arm 14 is hinged to the hinge seat 13, and its second hinge portion 1402 is hinged to the inner side of the triangular plate 12. That is, the claw clamp assembly 10 can clamp or retract as the connecting plate 11 moves up and down.

[0026] like Figure 2 As shown, a first movable hole 1301 is provided at the center of the bottom of the hinge seat 13. The outer rod 21 is coaxial with the first movable hole 1301. The inner rod 22 passes through the first movable hole 1301 and is bolted together with the connecting plate 11. A first abutting spring 23 is provided on the inner bottom wall of the outer rod 21. A pressure relief hole 2102 extending to the outside is provided on the inner side wall of the outer rod 21 near the bottom. Since the inner rod 22 and the outer rod 21 will cause different degrees of pressure abutment due to speed during the compression process, the pressure relief hole 2102 can avoid this problem. A lifting ring 2101 is provided at the bottom of the outer rod 21, and the lifting ring 2101 is connected to the external lifeline.

[0027] like Figure 3-4 As shown, the unlocking assembly 25 includes a control box 251 disposed on the outer side wall of the outer rod 21. The control box 251 has a channel 2512 extending into the outer rod 21 on the side away from the outer rod 21. The top of the control box 251 has a movable groove 2511 extending into the channel 2512. A pin 253 is elastically disposed in the channel 2512. A lever 252 is hinged in the movable groove 2511. The lever 252 is used to control the movement of the pin 253 in the extension direction of the channel 2512. A pin hole 2201 is disposed on the side wall of the inner rod 22 near the bottom. When the inner rod 22 is moved until the pin hole 2201 is coaxial with the channel 2512, the pin 253 is embedded in the pin hole 2201.

[0028] Furthermore, a first boss is formed on the outer side of the pin 253 near the inner rod 22, and a second boss is provided on the side of the channel 2512 near the inner rod 22, which limits the first boss. After the pin 253 is inserted into the channel 2512 from the outside, it is fixed by a bolt, and a second abutting spring 254 is provided between the bolt and the pin 253. An embedding groove 2531 is provided on the top of the pin 253, and a protrusion is provided on the bottom of the lever 252, which is embedded in the embedding groove 2531.

[0029] It should be noted that after the inner rod 22 extends to its maximum length, its bottom end is always located on the moving path of the pin 253.

[0030] In a preferred embodiment, two guide rods 24 are symmetrically arranged at the bottom of the connecting plate 11 along the inner rod 22, and a second movable hole 1302 is provided on the hinge seat 13. The guide rods 24 are movably arranged in the second movable hole 1302. By adding the guide rods 24, the operational stability of the claw clamp assembly 10 is increased, and the problem of radial deformation during the extension and retraction of the lifting rod 20 is avoided.

[0031] Specifically, the working principle of this lifeline suspension device for steel structure construction environments is as follows: When no external force is applied to the lifeline suspension device, the inner rod 22 moves upward under the action of the first resisting spring. At this time, the curved arm 14 rotates outward along the first hinge 1401 through the action of the connecting plate 11 on its second hinge 1402. The suspension device is then placed below the I-beam. Figure 5 In this embodiment, the connecting plate 11 is brought into contact with it, thereby pushing the inner rod 22 downward until the pin 253 in the unlocking assembly 25 is embedded in the pin hole 2201 of the inner rod 22, that is, the installation of the suspension device is completed. At this time, the crank arm 14 retracts inward, forming a support and fixation at the bottom flange of the I-beam. When it is necessary to open, the pin 253 is moved away from the inner rod 22 by the lever 252. At this time, the inner rod 22 is no longer restricted by the pin 253, that is, it moves upward under the action of the first contact spring 23, thereby unfolding the claw clamp assembly 10 and removing it from the I-beam. Through the above structure, the problem of the difficulty in removing the existing lifeline fixing bracket by welding is solved. Moreover, the removal process will cause varying degrees of damage to the welded parts of the steel structure, which not only increases the removal cost, but also affects the overall strength and stability of the steel structure.

[0032] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A lifeline suspension device for steel structure construction environments, characterized in that, The device includes a gripper assembly (10) and a lifting rod (20). The gripper assembly (10) includes a connecting plate (11) and a hinge seat (13) located below the connecting plate (11). Two sets of curved arms (14) are symmetrically arranged on both sides of the hinge seat (13). The curved arms (14) are hinged to the connecting plate (11) near the middle. A clamping plate (15) is provided at the other end of the curved arms (14). The lifting rod (20) is disposed on the hinge seat (13). At the bottom center of the hinge seat (13), the lifting rod (20) includes the outer rod (21) and the inner rod (22) which are telescopically connected together. The outer rod (21) is fixedly installed at the bottom center of the hinge seat (13). The inner rod (22) passes through the hinge seat (13) and is installed together with the connecting plate (11). The side wall of the outer rod (21) is provided with an unlocking component (25), which is used to control the telescopic movement of the inner rod (22).

2. The lifeline suspension device for steel structure construction environments according to claim 1, characterized in that, The crank arm (14) includes a first hinge part (1401) and a second hinge part (1402). Two sets of triangular plates (12) are bolted to the two sides of the connecting plate (11). The first hinge part (1401) of the crank arm (14) is hinged to the hinge seat (13), and its second hinge part (1402) is hinged to the inner side of the triangular plate (12).

3. The lifeline suspension device for steel structure construction environments according to claim 1, characterized in that, The hinge seat (13) has a first movable hole (1301) at the center of its bottom. The outer rod (21) is coaxial with the first movable hole (1301). The inner rod (22) passes through the first movable hole (1301) and is bolted to the connecting plate (11). The inner bottom wall of the outer rod (21) is provided with a first abutment spring (23). The inner side wall of the outer rod (21) near the bottom is provided with a pressure relief hole (2102) that extends to the outside. The bottom of the outer rod (21) is provided with a lifting ring (2101) that is connected to an external lifeline.

4. A lifeline suspension device for steel structure construction environments according to claim 3, characterized in that, The unlocking assembly (25) includes a control box (251) disposed on the outer side wall of the outer rod (21). A channel (2512) penetrating into the interior of the outer rod (21) is provided on the side of the control box (251) away from the outer rod (21). A movable groove (2511) penetrating into the channel (2512) is provided on the top of the control box (2511). A pin (253) is elastically disposed in the channel (2512). A lever (252) is hinged in the movable groove (2511). The lever (252) is used to control the movement of the pin (253) in the extension direction of the channel (2512). A pin hole (2201) is provided on the side wall of the inner rod (22) near the bottom. When the inner rod (22) is moved until the pin hole (2201) is coaxial with the channel (2512), the pin (253) is embedded in the pin hole (2201).

5. A lifeline suspension device for steel structure construction environments according to claim 4, characterized in that, A first boss is formed on the outer side of the pin (253) near the inner rod (22), and a second boss is provided on the side of the channel (2512) near the inner rod (22) to limit the first boss.

6. A lifeline suspension device for steel structure construction environments according to claim 5, characterized in that, After the pin (253) is inserted into the channel (2512) from the outside, it is fixed by a bolt, and a second abutment spring (254) is provided between the bolt and the pin (253).

7. A lifeline suspension device for steel structure construction environments according to claim 6, characterized in that, The top of the pin (253) is provided with an embedding groove (2531), and the bottom of the lever (252) is provided with a protrusion, which is embedded in the embedding groove (2531).

8. A lifeline suspension device for steel structure construction environments according to claim 6, characterized in that, After the inner rod (22) is extended to its maximum length, its bottom end is always located on the moving path of the pin (253).

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