Sliding fall arrestor for I-beams and its construction method

Abstract

This invention discloses a sliding personnel fall protection device for I-beams and its construction method, comprising: multiple auxiliary beam bases, each with a through groove, the lower flange of the I-beam being movably inserted into the through groove; a support column, located on one side of the I-beam, the auxiliary beam bases being connected to the support column via cantilever beams, and cable loops installed on the support column; a connecting cable, movably inserted into the cable loops on the multiple support columns; and a safety rope, comprising a rope body, a main buckle, secondary buckles, and a weight, the main buckle being movably fitted onto the connecting cable, the secondary buckles being attached to the main buckle, one end of the rope body being connected to the primary buckle, the other end of the rope body being connected to a construction worker, the middle of the rope body being inserted into the secondary buckle, and the weight having a through hole, the other end of the rope body being movably inserted into the through hole. This invention solves the problem of personnel safety accidents easily caused when using I-beams to construct working platforms for high bridge piers, due to the lack of effective safety rope attachment points at the top.

Description

Technical Field

[0001] This invention relates to the field of fall protection equipment technology, specifically to a sliding personnel fall protection device for I-beams and its construction method. Background Technology

[0002] Currently, for work platforms constructed using I-beams to build tall bridge piers, workers often have to attach their safety ropes to the already installed steel sections or poured piers because there are no effective anchor points at the top. This method not only hinders worker movement but also makes the ropes prone to getting caught in corners and gaps on the work surface, increasing the risk of falls. This is especially true when the height-to-width ratio of the work platform is less than 1:2; even attaching the safety rope to the pier is insufficient to prevent falls. Constructing an external work platform using scaffolding requires significant land use, is costly, and slows down construction. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, a sliding personnel fall protection device for I-beams and its construction method are provided to solve the problem of personnel safety accidents that are easily caused when using I-beams to build working platforms for tall bridge piers, due to the lack of effective safety rope attachment points at the top.

[0004] To achieve the above objectives, a sliding personnel fall arrest device for I-beams is provided, comprising: Multiple auxiliary beam bases are provided, each auxiliary beam base having a through groove, the lower flange of the I-beam being movably inserted into the through groove, and the auxiliary beam base being equipped with a locking element for locking the lower flange. A support column is provided on one side of the I-beam, and the base of the attached beam is connected to the support column through a cantilever beam. A cable ring is installed on the support column. A connecting cable, which is movably threaded through a loop on a plurality of support columns, one end of which is connected to a tensioning structure, which is mounted on a support column; The safety rope includes a rope body, a main buckle, two secondary buckles, and a weight. The main buckle is movably fitted onto the connecting cable, and the two secondary buckles are attached to the main buckle. One end of the rope body is connected to the primary buckle, and the other end of the rope body is connected to a construction worker. The middle of the rope body is threaded through the other secondary buckle. The weight has a through hole, and the other end of the rope body is movably threaded through the through hole. Under the weight of the weight, the weight pulls down the middle of the rope body to tighten the other end of the rope body.

[0005] Furthermore, the cross-section of the through groove is inverted T-shaped.

[0006] Furthermore, the attached beam base includes: The bottom reinforcement bar of the beam has hooks at both ends bent in opposite directions, and the hooks at both ends of the bottom reinforcement bar are respectively hooked to the opposite sides of the lower flange; The corner guard includes a first flange and a second flange connected at an angle. The first flange is attached to the upper surface of the lower flange and is connected to the end of the bottom reinforcement bar of the beam. The second flange is attached to the web of the I-beam.

[0007] Furthermore, the first flange plate has a threaded through hole, the locking member has an external thread, the locking member is screwed into the threaded through hole, and one end of the locking member presses against the upper surface of the lower flange.

[0008] Furthermore, the tensioning structure includes a winch rotatably mounted on the support column, and the end of the connecting cable is wound around the winch.

[0009] This invention provides a construction method for a sliding personnel fall protection device for I-beams, comprising the following steps: Multiple auxiliary beam bases are movably fitted onto the lower flange of the I-beam; Adjust the distance between the multiple attached beam bases; After the auxiliary beam base is adjusted into place, a locking device is installed on the auxiliary beam base to lock the lower flange; The connecting cable is movably threaded through the grommets on multiple support columns; The tension of the connecting cable is adjusted by the tensioning structure; The main buckle of the safety rope is movably fitted onto the connecting cable, and the two buckles are attached to the main buckle. One end of the rope body is then connected to the first buckle, and the middle of the rope body is threaded through the second buckle. The other end of the rope body is connected to the construction worker. Due to the gravity of the weight, the weight pulls down the middle of the rope body to tighten the other end of the rope body.

[0010] The beneficial effects of the present invention are that the sliding personnel fall protection device for I-beams of the present invention, by setting up a connecting cable on the outside of the I-beam and cooperating with a self-tensioning safety rope with a weight, ensures that the safety rope on the construction personnel is always taut, avoiding the safety rope from getting stuck in the gaps or corners of the work surface due to being too long and dragging on the ground, effectively reducing the risk of personnel falling or dropping, and improving work safety.

[0011] The sliding personnel fall arrest device for I-beams of the present invention can quickly form a reliable safety rope sliding system when the upper part of the high-altitude work platform such as bridge piers is not yet available as an effective safety rope attachment point in the early stage of its construction. It is attached to the lower flange of the I-beam by the auxiliary beam base, and protection can be provided without waiting for the platform to be fully erected.

[0012] The main buckle of the safety rope in the sliding personnel fall protection device for I-beams of the present invention can slide along the connecting cable, and the rope body automatically adjusts its length and maintains tension under the action of the weight of the weight block. The operator can move freely within the protection range without being dragged or entangled by the safety rope, and the operation is flexible and convenient.

[0013] The sliding personnel fall protection device for I-beams of the present invention eliminates the need for external scaffolding platforms, saving significant ground space and material rental and dismantling costs, while also accelerating the construction progress of the work platform, resulting in significant economic benefits. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of a sliding personnel fall protection device for I-beams according to an embodiment of the present invention.

[0015] Figure 2 This is a top view of a sliding personnel fall protection device for I-beams according to an embodiment of the present invention.

[0016] Figure 3 This is a side view of a sliding personnel fall arrest device for I-beams according to an embodiment of the present invention.

[0017] Figure 4 This is a structural schematic diagram of the beam-supported base according to an embodiment of the present invention.

[0018] Figure 5 This is a left view of the beam base according to an embodiment of the present invention.

[0019] Figure 6 This is a top view of the beam base according to an embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of the safety rope according to an embodiment of the present invention.

[0021] Figure 8 This is a schematic diagram of the structure of one end of the rope body according to an embodiment of the present invention.

[0022] Figure label: Attached beam base 1, beam bottom reinforcement 11, corner guard 12; Support column 2, cable ring 21, tensioning structure 22, cantilever beam 23; Link 3; Safety rope 4, rope body 41, main buckle 42, secondary buckle 43, weight block 44; 5 I-beams; Bridge pier 6. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 8 As shown, the present invention provides a sliding personnel fall protection device for I-beams, comprising: a beam base 1, a support column 2, a connecting cable 3, and a safety rope 4.

[0026] This invention relates to a sliding personnel fall arrest device for I-beams, used to construct an operating platform for bridge pier construction. The operating platform is constructed using two long beams and multiple short beams. Both the long and short beams are I-beams. The long beams are positioned along the length of the bridge, while the short beams are positioned along the width of the bridge.

[0027] In this embodiment, long beams are erected first. Once the two long beams are erected, the sliding personnel fall protection device for I-beams of this invention can be installed to provide safety protection for construction workers.

[0028] Specifically, the auxiliary beam base 1 is used to attach to the bottom of the I-beam. Multiple auxiliary beam bases are spaced apart along the length of the I-beam. In this embodiment, an auxiliary beam base is provided at each end of the I-beam. The auxiliary beam base 1 has a through groove. The lower flange of the I-beam 5 is movably inserted into the through groove. The auxiliary beam base 1 is equipped with a locking element. The locking element is used to lock the lower flange.

[0029] Support column 2 is located on one side of I-beam 5. Specifically, the support column is located on the opposite sides of the two long beams. Attached beam base 1 is connected to support column 2 via cantilever beam 23. The cantilever beam is positioned along the length of the shorter beam. Cable rings 21 are installed on support column 2.

[0030] The connecting cable 3 is movably threaded through the grommets 21 on multiple support columns 2. One end of the connecting cable 3 is connected to a tensioning structure 22. The tensioning structure 22 is mounted on a support column 2.

[0031] The safety rope 4 includes a rope body 41, a main buckle 42, secondary buckles 43, and a weight 44. The main buckle 42 is movably fitted onto the connecting cable 3. The secondary buckles 43 are attached to the main buckle 42. One end of the rope body 41 is connected to the primary buckle 43. The other end of the rope body 41 is connected to a construction worker. The middle of the rope body 41 is threaded through the secondary buckle 43. The weight 44 has a through hole. The other end of the rope body 41 is movably threaded through the through hole. Under the weight of the weight 44, the weight 44 pulls down the middle of the rope body 41 to tighten the other end of the rope body 41.

[0032] This invention relates to a sliding personnel fall arrest device for I-beams. The device uses a base attached to the bottom of the I-beam as its fulcrum. A connecting cable is erected on the outside of the work platform via a cantilever beam and support column to install a safety rope. The safety rope, constructed with a main buckle, secondary buckle, and weight, forms an adaptive length safety rope to provide safety protection for construction workers. Under the pull of the weight, the rope remains taut between itself and the workers, preventing it from getting caught in corners and gaps on the work surface, thus improving worker safety. This sliding personnel fall arrest device for I-beams provides immediate safety protection for construction workers after the I-beam (long beam) is erected on the work platform.

[0033] As a preferred embodiment, the cross-section of the through groove of the attached beam base is inverted T-shaped to fit the cross-section of the I-beam.

[0034] In this embodiment, refer to Figures 4 to 6 As shown, the beam base 1 includes: beam bottom reinforcement 11 and corner guard plate 12.

[0035] The bottom reinforcement bar 11 is installed along the width direction of the lower flange of the I-shaped steel beam. The two ends of the bottom reinforcement bar 11 are bent in opposite directions to form hooks. The hooks at both ends of the bottom reinforcement bar 11 are respectively hooked to opposite sides of the lower flange.

[0036] The corner guard 12 includes a first flange and a second flange connected at an angle. In this embodiment, the corner guard is an angle steel. The angle steel is arranged along the length direction of the lower flange of the I-beam. The first flange and the second flange are arranged at 90°. The first flange is attached to the upper surface of the lower flange. The first flange is connected to the end of the bottom reinforcement 11 of the beam. The second flange is attached to the web of the I-beam 5.

[0037] In a preferred embodiment, the first flange plate has a threaded through hole. The locking member has an external thread. The locking member is screwed into the threaded through hole. One end of the locking member presses against the upper surface of the lower flange.

[0038] Before installing the connecting cables, the position of the auxiliary beam base on the I-beam is determined based on the protection range. After the auxiliary beam base is positioned, the locking device is rotated so that it extends into the through slot and presses against the upper surface of the lower flange, thereby preventing the auxiliary beam base from sliding.

[0039] Continue reading Figure 4 As shown, the tensioning structure 22 includes a winch. The winch is rotatably mounted on a support column 2. The end of the connecting cable 3 is wound around the winch. After the support column is erected, the connecting cable is threaded through the swivels on multiple support columns, and the winch is rotated by the handle to adjust the shape of the connecting cable.

[0040] This invention provides a construction method for a sliding personnel fall protection device for I-beams, comprising the following steps: S1. Multiple auxiliary beam bases 1 are movably fitted onto the lower flange of the I-beam 5.

[0041] S2. Adjust the distance between multiple auxiliary beam bases 1.

[0042] S3. After the auxiliary beam base 1 is adjusted into place, a locking device is installed on the auxiliary beam base 1 to lock the lower flange.

[0043] S4. The connecting cable 3 is movably threaded through the cable loops 21 on the multiple support columns 2.

[0044] S5. Adjust the tension of the connecting cable 3 by means of tensioning structure 22.

[0045] S6. The main buckle 42 of the safety rope 4 is movably sleeved on the connecting cable 3, and the secondary buckles 43 are hung on the main buckle 42. Then, one end of the rope body 41 is connected to the primary buckle 43, the middle part of the rope body 41 is threaded through the secondary buckle 43, and the other end of the rope body 41 is connected to the construction worker. Due to the gravity of the weight block 44, the weight block 44 pulls down the middle part of the rope body 41 to tighten the other end of the rope body 41.

[0046] The sliding personnel fall arrest device for I-beams of this invention ensures that the safety rope on the personnel remains taut throughout the entire process and does not drag on the ground. Construction workers or operators can move freely without affecting their work activities. The safety rope will not be too long and will not drag on the ground, getting stuck in corners or gaps, causing personnel to fall. This greatly reduces the safety risks of working at heights and also reduces the cost of safety measures for working at heights. All components and tools used are made from common materials and tools, making processing simple and installation and disassembly convenient, thus accelerating the construction progress.

[0047] The sliding personnel fall protection device for I-beams of the present invention is applicable to various high-altitude work platforms built with I-beams, especially suitable for bridge pier construction scenarios with a height-to-width ratio of less than 1:2, effectively making up for the shortcomings of traditional safety rope hanging methods.

[0048] The sliding personnel fall arrest device for I-beams of the present invention has a simple structure and is easy to install and dismantle. The auxiliary beam base is composed of a combination of bottom reinforcement bars and corner guards, which is fixed to the lower flange of the I-beam by locking components, without the need for welding or drilling; the connecting cable is tensioned by a winch. The entire device can be fabricated using only common materials and tools, and the installation and dismantling operations are simple and do not occupy additional construction space.

[0049] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A sliding type personnel fall arrest device for I-beams, characterized in that, include: Multiple auxiliary beam bases are provided, each auxiliary beam base having a through groove, the lower flange of the I-beam being movably inserted into the through groove, and the auxiliary beam base being equipped with a locking element for locking the lower flange. A support column is provided on one side of the I-beam, and the base of the attached beam is connected to the support column through a cantilever beam. A cable ring is installed on the support column. A connecting cable, which is movably threaded through a loop on a plurality of support columns, one end of which is connected to a tensioning structure, which is mounted on a support column; The safety rope includes a rope body, a main buckle, two secondary buckles, and a weight. The main buckle is movably fitted onto the connecting cable, and the two secondary buckles are attached to the main buckle. One end of the rope body is connected to the primary buckle, and the other end of the rope body is connected to a construction worker. The middle of the rope body is threaded through the other secondary buckle. The weight has a through hole, and the other end of the rope body is movably threaded through the through hole. Under the weight of the weight, the weight pulls down the middle of the rope body to tighten the other end of the rope body.

2. The sliding personnel fall arrestor for I-beams according to claim 1, characterized in that, The cross-section of the through groove is inverted T-shaped.

3. The sliding personnel fall arrest device for I-beams according to claim 2, characterized in that, The attached beam base includes: The bottom reinforcement bar of the beam has hooks at both ends bent in opposite directions, and the hooks at both ends of the bottom reinforcement bar are respectively hooked to the opposite sides of the lower flange; The corner guard includes a first flange and a second flange connected at an angle. The first flange is attached to the upper surface of the lower flange and is connected to the end of the bottom reinforcement bar of the beam. The second flange is attached to the web of the I-beam.

4. The sliding personnel fall arrest device for I-beams according to claim 3, characterized in that, The first flange plate has a threaded through hole, the locking member has an external thread, the locking member is screwed into the threaded through hole, and one end of the locking member presses against the upper surface of the lower flange.

5. The sliding personnel fall arrestor for I-beams according to claim 1, characterized in that, The tensioning structure includes a winch rotatably mounted on the support column, and the end of the connecting cable is wound around the winch.

6. A construction method for a sliding personnel fall arrest device for an I-beam as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Multiple auxiliary beam bases are movably fitted onto the lower flange of the I-beam; Adjust the distance between the multiple attached beam bases; After the auxiliary beam base is adjusted into place, a locking device is installed on the auxiliary beam base to lock the lower flange; The connecting cable is movably threaded through the grommets on multiple support columns; The tension of the connecting cable is adjusted by the tensioning structure; The main buckle of the safety rope is movably fitted onto the connecting cable, and the two buckles are attached to the main buckle. One end of the rope body is then connected to the first buckle, and the middle of the rope body is threaded through the second buckle. The other end of the rope body is connected to the construction worker. Due to the gravity of the weight, the weight pulls down the middle of the rope body to tighten the other end of the rope body.

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