Buckle device for quick installation of lifeline

Abstract

The utility model discloses a buckle device for quick installation life line relates to life line installation technical field, buckle device includes dog -claw subassembly, hinged axle, first connecting rod, second connecting rod and elastic screw rod, dog -claw subassembly is two groups and symmetrical arrangement, and every dog -claw subassembly includes first hinged piece and second hinged piece, and the first hinged piece and second hinged piece of every dog -claw subassembly one end all are connected with hinged axle rotation, the both ends of first connecting rod are connected with the first hinged piece of two dog -claw subassembly respectively, and the both ends of second connecting rod are connected with the second hinged piece of two dog -claw subassembly respectively, elastic screw rod can drive the other end of first hinged piece and second hinged piece of two dog -claw subassembly and rotate around hinged axle, and all be provided with the lifting ring for being connected with life line on first hinged piece and second hinged piece, the utility model discloses can improve installation efficiency, reduce high altitude installation operation time and promote the safety factor.

Description

Technical Field

[0001] This utility model relates to the field of lifeline installation technology, and in particular to a snap-fit ​​device for quick installation of lifelines. Background Technology

[0002] A safety lifeline is a fall protection system used in high-altitude or hazardous operations. It typically consists of high-strength fiber ropes, wire ropes, or guide rails, which are connected to the worker's safety belt to ensure that the worker will not fall even if they lose their footing while moving at heights.

[0003] In the construction of fully enclosed sound barriers, the current common practice for the top transparent screen installation involves setting up two lifelines using oil-free steel wire ropes. These ropes are fixed at regular intervals and connected by U-shaped loops in the middle of the crossbeams. Both ends of the lifelines are secured to the crossbeams with special rope loops wrapped around the U-shaped loops. The safety ropes must be taut, ensuring sufficient tension for operators to work while preventing excessive impact from exceeding the effective range. Operators wear five-point safety harnesses and are attached to the lifelines; no more than two people should be attached to a single rope. The lifelines are typically secured to curved beams using three sliding saddle openings at each end, facing the main rope. Installation and removal require on-site reconstruction, which is inefficient.

[0004] In view of the problems of the prior art, those skilled in the art urgently need a snap-fit ​​device for quickly installing lifelines. Utility Model Content

[0005] The purpose of this invention is to provide a snap-fit ​​device for quickly installing lifelines, thereby solving the problems existing in the prior art, improving installation efficiency, reducing high-altitude installation time, and enhancing safety.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a snap-fit ​​device for quickly installing lifelines, including a claw assembly, a hinge shaft, a first connecting rod, a second connecting rod, and a tightening screw. The claw assemblies are arranged in two symmetrical sets, each set including a first hinge and a second hinge. One end of both the first and second hinges of each set is rotatably connected to the hinge shaft. The two ends of the first connecting rod are respectively connected to the first hinges of the two sets of claw assemblies, and the two ends of the second connecting rod are respectively connected to the second hinges of the two sets of claw assemblies. The connecting parts are arranged such that the first connecting rod has a first threaded hole in its middle and the second connecting rod has a second threaded hole in its middle, with the threads of the first and second threaded holes having opposite directions; the tensioning screw is threadedly connected to the first and second threaded holes, and the tensioning screw can drive the other ends of the first and second hinge members of the two sets of claw assemblies to rotate around the hinge axis to connect or disconnect from the curved beam flange; both the first and second hinge members are provided with lifting rings for connecting to the lifeline.

[0008] In some embodiments, a crank handle is also included; the crank handle is connected to one end of the tensioning screw for driving the tensioning screw to rotate.

[0009] In some embodiments, both the first hinge and the second hinge include an L-shaped connecting arm and an arc-shaped connecting arm; one end of the L-shaped connecting arm is provided with a hinge hole for the hinge shaft to pass through, and the other end is smoothly connected to one end of the arc-shaped connecting arm; the other end of the arc-shaped connecting arm is used to abut against the inner surface of the curved beam flange plate, and the inner sidewall of the L-shaped connecting arm is used to abut against the side end of the curved beam flange plate; the outer sidewall of the L-shaped connecting arm is provided with the lifting ring.

[0010] In some embodiments, a first support rod and a second support rod are also included; the arc-shaped connecting arm is provided with a first through hole, and the two ends of the first support rod pass through the first through hole on the arc-shaped connecting arm of the two first hinge members respectively, and the two ends of the second support rod pass through the first through hole on the arc-shaped connecting arm of the two second hinge members respectively.

[0011] In some embodiments, a limiting nut is also included, and a second through hole is provided in the middle of the L-shaped connecting arm; one end of the first connecting rod passes through the second through hole on the L-shaped connecting arm of the first hinge, and one end of the first connecting rod is positioned and connected to the first hinge through the two limiting nuts; one end of the second connecting rod passes through the second through hole on the L-shaped connecting arm of the second hinge, and one end of the second connecting rod is positioned and connected to the second hinge through the two limiting nuts.

[0012] In some embodiments, the arc-shaped connecting arm includes an arc-shaped inner wall, an arc-shaped outer wall, and an end wall; the two ends of the end wall are respectively connected to one end of the arc-shaped inner wall and one end of the arc-shaped outer wall, and the junction of the arc-shaped outer wall and the end wall is used to abut against the inner surface of the curved beam flange.

[0013] In some embodiments, one end of the first support rod passes through the first through hole and is threadedly connected to the limiting nut; one end of the second support rod passes through the first through hole and is threadedly connected to the limiting nut.

[0014] In some embodiments, a bushing is also included; the bushing is installed in the hinge hole of the L-shaped connecting arm, the bushing is sleeved and rotatably connected to the hinge shaft, and the hinge shaft is axially relative to the bushing.

[0015] In some embodiments, the crank handle includes a connecting sleeve, a first rocker arm, and a second rocker arm; the connecting sleeve is sleeved and connected to one end of the tensioning screw, one end of the first rocker arm passes through the connecting sleeve radially and is fixedly connected to the connecting sleeve, and the second rocker arm is parallel to the connecting sleeve and is fixedly connected to the other end of the first rocker arm.

[0016] In some embodiments, the lifting ring has a semi-circular structure.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] This utility model discloses a snap-fit ​​device for quickly installing lifelines. It achieves connection and fixation by two sets of claw assemblies hooking onto the flange of a curved beam. Each set of claw assemblies has a lifting ring on its first and second hinge members for connecting to the safety lifeline. Furthermore, a tightening screw is threaded into a first threaded hole and a second threaded hole, with opposite helical directions. Tightening the tightening screw allows the first and second hinge rods to rotate in opposite or opposing directions. This fully enclosed sound barrier snap-fit ​​device allows for pre-fixing the lifeline to the snap-fit ​​device, eliminating the need for removal during initial installation. In use, the snap-fit ​​device is hoisted onto the curved beam, and the tightening screw is rotated, significantly improving installation efficiency, reducing high-altitude installation time, and enhancing safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of one of the first embodiments of the snap-fit ​​device for quickly installing lifelines according to this utility model;

[0021] Figure 2 This is the second three-dimensional structural schematic diagram of the first embodiment of the snap-fit ​​device for quick installation of lifelines according to this utility model;

[0022] Figure 3 This is a front view of the first embodiment of the snap-fit ​​device for quick installation of lifelines according to this utility model;

[0023] Figure 4 This is a side view of the first embodiment of the snap-fit ​​device for quickly installing lifelines according to this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the first hinge member in some embodiments of the present invention;

[0025] Figure 6 This is one of the three-dimensional structural schematic diagrams of the second embodiment of the snap-fit ​​device for quick installation of lifelines according to this utility model;

[0026] Figure 7 This is the second three-dimensional structural schematic diagram of the second embodiment of the snap-fit ​​device for quickly installing lifelines according to this utility model.

[0027] In the diagram: 1-First hinge; 2-Second hinge; 3-Hinge shaft; 4-First connecting rod; 5-Second connecting rod; 6-Tightening screw; 7-Handle; 8-Limit nut; 9-First support rod; 10-Second support rod; 11-L-shaped connecting arm; 12-Arc-shaped connecting arm; 13-Hinge hole; 14-Lifting ring; 15-First through hole; 16-Second through hole; 71-Connecting sleeve; 72-First rocker arm; 73-Second rocker arm; 100-Bent beam flange; 121-Arc-shaped inner wall; 122-Arc-shaped outer wall; 123-End wall. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The purpose of this invention is to provide a snap-fit ​​device for quickly installing lifelines, thereby solving the problems existing in the prior art, improving installation efficiency, reducing high-altitude installation time, and enhancing safety.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] This utility model provides a clip device for quickly installing lifelines, such as... Figures 1 to 7 As shown, the device includes a claw assembly, a hinge shaft 3, a first connecting rod 4, a second connecting rod 5, and a tightening screw 6. The claw assembly consists of two sets arranged symmetrically. Each set includes a first hinge member 1 and a second hinge member 2, and one end of each hinge member 1 and 2 is rotatably connected to the hinge shaft 3. Specifically, in one set of claw assemblies, one end of the first hinge member 1 and one end of the second hinge member 2 form a first common hinge end; in the other set of claw assemblies, one end of the first hinge member 1 and one end of the second hinge member 2 form a second common hinge end, and both the first and second common hinge ends are rotatably connected to the hinge shaft 3.

[0032] The two ends of the first connecting rod 4 are respectively connected to the first hinge 1 of the two sets of claw assemblies, and the two ends of the second connecting rod 5 are respectively connected to the second hinge 2 of the two sets of claw assemblies. The first connecting rod 4 has a first threaded hole in the middle, and the second connecting rod 5 has a second threaded hole in the middle, and the threads of the first threaded hole and the second threaded hole have opposite directions. The tensioning screw 6 is threadedly connected to the first threaded hole and the second threaded hole, and the tensioning screw 6 can drive the other end of the first hinge 1 and the second hinge 2 of the two sets of claw assemblies to rotate around the hinge axis 3 to connect or disconnect from the curved beam flange plate 100.

[0033] Both the first hinge 1 and the second hinge 2 are provided with a hanging ring 14 for connecting to the lifeline; this utility model is provided with a total of four hanging rings 14.

[0034] It should be noted that the first hinge 1 and the second hinge 2 of this utility model have the same structure; the tightening screw 6 is provided with a first threaded section and a second threaded section, wherein the first threaded section is threadedly connected to the first threaded hole, and the second threaded section is threadedly connected to the second threaded hole. Since the threads of the first threaded hole and the second threaded hole are opposite in direction, when the tightening screw 6 is turned clockwise or counterclockwise, the first connecting rod 4 and the second connecting rod 5 will move closer or further away from each other, thereby enabling the first hinge 1 and the second hinge 2 to rotate around the hinge axis 3. When the first connecting rod 4 and the second connecting rod 5 are close to each other, they can hook onto the curved beam flange plate 100 for connection and fixation. When the first connecting rod 4 and the second connecting rod 5 are far apart from each other, they can disengage from the curved beam flange plate 100. Furthermore, the first hinge 1 and the second hinge 2 of this utility model are both vertically arranged, while the hinge axis 3, the first connecting rod 4, and the second connecting rod 5 are all horizontally arranged.

[0035] In some embodiments, a crank handle 7 is also included; the crank handle 7 is connected to one end of the tensioning screw 6 for driving the tensioning screw 6 to rotate. This invention achieves this by applying force to rotate the crank handle 7, which in turn drives the tensioning screw 6 to rotate.

[0036] In some embodiments, such as Figure 5 As shown, the first hinge 1 and the second hinge 2 have the same structure and both include an L-shaped connecting arm 11 and an arc-shaped connecting arm 12; wherein, one end of the L-shaped connecting arm 11 is provided with a hinge hole 13 for the hinge shaft 3 to pass through, and the other end is smoothly connected to one end of the arc-shaped connecting arm 12; the other end of the arc-shaped connecting arm 12 is used to abut against the inner surface of the curved beam flange plate 100, and the inner sidewall of the L-shaped connecting arm 11 is used to abut against the side end of the curved beam flange plate 100; a lifting ring 14 is provided on the outer sidewall of the L-shaped connecting arm 11.

[0037] It should be noted that the curved beam of this utility model is an I-beam structure and includes two flange plates and a vertical plate located between the two flange plates. The side surface of the curved beam flange plate 100 connected to the vertical plate is defined as the inner surface. The side of the L-shaped connecting arm 11 close to the curved beam flange plate 100 is defined as the inner sidewall and the side away from the curved beam flange plate 100 is defined as the outer sidewall.

[0038] In some embodiments, such as Figure 2 and Figure 5 As shown, it also includes a first support rod 9 and a second support rod 10; the arc-shaped connecting arm 12 is provided with a first through hole 15, the two ends of the first support rod 9 pass through the first through hole 15 on the arc-shaped connecting arm 12 of the two first hinge members 1 respectively, and the two ends of the second support rod 10 pass through the first through hole 15 on the arc-shaped connecting arm 12 of the two second hinge members 2 respectively.

[0039] The first support rod 9 and the second support rod 10 of this utility model are both horizontally arranged to provide auxiliary support for the connection between the two sets of card group components and improve the stability of the overall structure.

[0040] In some embodiments, such as Figures 5 to 7 As shown, it also includes a limiting nut 8, and a second through hole 16 is provided in the middle of the L-shaped connecting arm 11; one end of the first connecting rod 4 passes through the second through hole 16 on the L-shaped connecting arm 11 of the first hinge member 1, and one end of the first connecting rod 4 is positioned and connected to the first hinge member 1 by two limiting nuts 8. One end of the second connecting rod 5 passes through the second through hole 16 on the L-shaped connecting arm 11 of the second hinge member 2, and one end of the second connecting rod 5 is positioned and connected to the second hinge member 2 by two limiting nuts 8.

[0041] It should be noted that the two ends of the first connecting rod 4 of this utility model pass through the second through hole 16 respectively, and the ends of the first connecting rod 4 are connected to two limiting nuts 8. During installation, the first hinge 1 is sleeved on the first connecting rod 4 and positioned by the limiting nuts 8 on both sides. This utility model can adjust the distance between the two first hinges 1 by adjusting the position of the limiting nuts 8. Similarly, during installation, the second hinge 2 is sleeved on the second connecting rod 5 and positioned by the limiting nuts 8 on both sides. The distance between the two second hinges 2 can be adjusted by adjusting the position of the limiting nuts 8.

[0042] In some embodiments, such as Figure 5 As shown, the arc-shaped connecting arm 12 includes an arc-shaped inner wall 121, an arc-shaped outer wall 122, and an end wall 123; wherein, the two ends of the end wall 123 are respectively connected to one end of the arc-shaped inner wall 121 and one end of the arc-shaped outer wall 122, and the junction of the arc-shaped outer wall 122 and the end wall 123 is used to abut against the inner surface of the curved beam flange plate 100.

[0043] The present invention forms a pointed structure at the junction of the arc-shaped outer wall 122 and the end wall 123, which can hook the curved beam flange plate 100 to improve the stability of the connection.

[0044] In some embodiments, such as Figure 7 As shown, one end of the first support rod 9 passes through the first through hole 15 and is threadedly connected to the limit nut 8; one end of the second support rod 10 passes through the first through hole 15 and is threadedly connected to the limit nut 8.

[0045] In some embodiments, a bushing is also included; a bushing is installed in the hinge hole 13 of the L-shaped connecting arm 11, the bushing is sleeved and rotatably connected to the hinge shaft 3, and the hinge shaft 3 can slide relative to the bushing in the axial direction.

[0046] The bushing of this utility model can be made of wear-resistant material to reduce the wear of the first hinge 1, the second hinge 2 and the hinge shaft 3, and improve the service life of the device.

[0047] In some embodiments, such as Figure 3 As shown, the crank handle 7 includes a connecting sleeve 71, a first rocker arm 72, and a second rocker arm 73. The connecting sleeve 71 is sleeved and connected to one end of the tensioning screw 6. One end of the first rocker arm 72 passes radially through the connecting sleeve 71 and is fixedly connected to it. The second rocker arm 73 is parallel to the connecting sleeve 71 and fixedly connected to the other end of the first rocker arm 72. The connecting sleeve 71 and the tensioning screw 6 are circumferentially limited, allowing them to rotate synchronously.

[0048] In some embodiments, the lifting ring 14 has a semi-circular structure; those skilled in the art can set the shape and structure of the lifting ring 14 according to the actual situation, and the present invention does not make specific limitations in this regard.

[0049] This utility model's snap-fit ​​device for quickly installing lifelines solves the problem of slow installation efficiency. The device rotates the tension screw 6, which drives the first connecting rod 4 and the second connecting rod 5 to move, thereby driving the first hinge 1 and the second hinge 2 to rotate around the hinge axis 3, thus realizing the closing and unfolding of the snap-fit ​​device, enabling rapid deployment. It can be installed to accommodate four or more lifelines. During on-site installation, simply unfold the claws, hook them onto the upper part of the curved beam flange plate 100, and tighten them to meet the requirements.

[0050] The lifeline of this invention can be pre-assembled onto the device on the ground, which can improve installation efficiency; reduce the time for high-altitude installation operations, which can improve the safety factor; and the pre-installation and acceptance of the lifeline can ensure that the lifeline length, sliding saddle, etc. are constructed in accordance with the specifications, thus achieving standardized construction; and the device can be reused, reducing repetitive installation actions.

[0051] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A snap-fit ​​device for quickly installing a lifeline, characterized in that, It includes a claw assembly, a hinge shaft, a first connecting rod, a second connecting rod, and a tensioning screw; The claw assembly consists of two sets arranged symmetrically. Each set of the claw assembly includes a first hinge and a second hinge, and one end of the first hinge and the second hinge of each set of the claw assembly is rotatably connected to the hinge shaft. The two ends of the first connecting rod are respectively connected to the first hinge of the two sets of claw assemblies, and the two ends of the second connecting rod are respectively connected to the second hinge of the two sets of claw assemblies. The first connecting rod has a first threaded hole in the middle, and the second connecting rod has a second threaded hole in the middle, and the threads of the first threaded hole and the second threaded hole have opposite directions. The tensioning screw is threadedly connected to the first threaded hole and the second threaded hole, and the tensioning screw can drive the other end of the first hinge and the second hinge of the two sets of claw assemblies to rotate around the hinge axis to connect or disconnect from the curved beam flange. Both the first hinge and the second hinge are provided with a lifting ring for connecting to the lifeline.

2. The snap-fit ​​device for quick installation of lifelines according to claim 1, characterized in that, It also includes the crank handle; The crank handle is connected to one end of the tensioning screw to drive the tensioning screw to rotate.

3. The snap-fit ​​device for quick installation of lifelines according to claim 1, characterized in that, Both the first hinge and the second hinge include an L-shaped connecting arm and an arc-shaped connecting arm; One end of the L-shaped connecting arm is provided with a hinge hole for the hinge shaft to pass through, and the other end is smoothly connected to one end of the arc-shaped connecting arm. The other end of the arc-shaped connecting arm is used to abut against the inner surface of the curved beam flange plate, and the inner sidewall of the L-shaped connecting arm is used to abut against the side end of the curved beam flange plate. The lifting ring is provided on the outer wall of the L-shaped connecting arm.

4. The snap-fit ​​device for quick installation of lifelines according to claim 3, characterized in that, It also includes a first support rod and a second support rod; The arc-shaped connecting arm is provided with a first through hole, and the two ends of the first support rod pass through the first through holes on the arc-shaped connecting arms of the two first hinge members respectively. The two ends of the second support rod pass through the first through holes on the arc-shaped connecting arms of the two second hinge members respectively.

5. The snap-fit ​​device for quick installation of lifelines according to claim 3, characterized in that, It also includes a limiting nut, and a second through hole is provided in the middle of the L-shaped connecting arm; One end of the first connecting rod passes through the second through hole on the L-shaped connecting arm of the first hinge, and one end of the first connecting rod is positioned and connected to the first hinge by the two limiting nuts; One end of the second connecting rod passes through the second through hole on the L-shaped connecting arm of the second hinge, and the other end of the second connecting rod is positioned and connected to the second hinge by the two limiting nuts.

6. The snap-fit ​​device for quick installation of lifelines according to claim 3, characterized in that, The arc-shaped connecting arm includes an arc-shaped inner wall, an arc-shaped outer wall, and an end wall; The two ends of the end wall are respectively connected to one end of the arc-shaped inner wall and one end of the arc-shaped outer wall, and the junction of the arc-shaped outer wall and the end wall is used to abut against the inner surface of the curved beam flange.

7. The snap-fit ​​device for quick installation of lifelines according to claim 4, characterized in that, One end of the first support rod passes through the first through hole and is threadedly connected to the limiting nut; one end of the second support rod passes through the first through hole and is threadedly connected to the limiting nut.

8. The snap-fit ​​device for quick installation of lifelines according to claim 3, characterized in that, It also includes bushings; The bushing is installed in the hinge hole of the L-shaped connecting arm. The bushing is sleeved and rotatably connected to the hinge shaft, and the hinge shaft can slide relative to the bushing axially.

9. The snap-fit ​​device for quick installation of lifelines according to claim 2, characterized in that, The crank handle includes a connecting sleeve, a first crank, and a second crank. The connecting sleeve is sleeved and connected to one end of the tightening screw. One end of the first rocker arm passes through the connecting sleeve radially and is fixedly connected to the connecting sleeve. The second rocker arm is parallel to the connecting sleeve and is fixedly connected to the other end of the first rocker arm.

10. The snap-fit ​​device for quick installation of lifelines according to claim 1, characterized in that, The lifting ring has a semi-circular ring structure.

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