Safety belt lanyard attachment device
Patent Information
- Application Number
- CN202521870794.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-01
AI Technical Summary
在钢栈桥的搭设过程中，因施工工艺无法提供具有临边防护的施工通道，施工人员需要在贝雷梁上行走，存在着坠落的巨大安全隐患
[0011]本实用新型结构简单、易于制造。利用贝雷梁两端的圆孔作为支撑杆组件的插入孔，安装简便。高强度钢丝绳两端分别通过索具螺旋扣拉紧，便于施工人员将安全带系挂绳端头的锁环牢固地锁定在作为生命线的高强度钢丝绳上，为施工人员在贝雷梁上行走提供了可靠的安全保障。
Smart Images
Figure CN224864842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a safety device for construction workers working at heights during construction, and more particularly to a locking ring attachment device at the end of the safety rope of the work safety belt worn by construction workers during the erection of a steel trestle bridge on a Bailey bridge, belonging to the field of construction engineering safety technology. Background Technology
[0002] In the construction of bridges and hydraulic engineering projects, steel trestle bridges need to be erected over water to allow construction equipment and personnel to access the construction site. For example... Figure 1 As shown, when constructing a steel trestle bridge, steel beams 20 need to be erected on top of rows of pile foundations 10 in the water. Then, multiple rows of interconnected Bailey bridge beams 30 are erected alongside the steel beams 20 as truss beams. Finally, the steel trestle bridge is erected on the Bailey bridge beams 30. During the construction of the steel trestle bridge, because the construction process cannot provide a construction passage with edge protection, construction workers need to walk on the Bailey bridge beams, posing a significant risk of falling. Therefore, construction workers need to wear safety harnesses, and the locking ring at the end of the safety harness rope must be reliably attached to the anchoring device to ensure the safety of the construction workers. Utility Model Content
[0003] The purpose of this invention is to provide a simple, easy-to-use, and safe device for attaching safety ropes to work harnesses.
[0004] This utility model is achieved through the following technical solution:
[0005] A safety harness attachment device includes a high-strength steel wire rope, two support rod assemblies, and two rigging screw buckles. The support rod assembly includes a vertical pole and a limiting tube sleeved and welded to the vertical pole at both ends. The lower end of the vertical pole passes through the circular holes on the upper and lower sides of the upper longitudinal bar of the Bailey beam and is limited by the lower end of the limiting tube. The two ends of the high-strength steel wire rope are connected to one end of the rigging screw buckle through several steel wire rope clamps. The other end of the rigging screw buckle is connected to a half-chain link welded to the upper end of the vertical pole through a chain link.
[0006] The objective of this utility model can also be further achieved through the following technical measures.
[0007] Furthermore, both the upright and the limiting tube are made of round steel pipe, and the inner diameter of the upright matches the outer diameter of the limiting tube.
[0008] Furthermore, the lower end of the locking chain is connected to the semi-ring welded and fixed to the bottom sealing plate of the upright, and the upper end of the locking chain is connected to the hook on the upright. One end of the hook is welded and fixed to one side of the upright and is adjacent to the upper end of the limiting tube.
[0009] Furthermore, the minimum tensile strength of the high-strength steel wire rope is ≥2060 MPa.
[0010] Furthermore, the surfaces of the uprights and limiting tubes are coated with yellow warning paint and have reflective stickers affixed at intervals.
[0011] This utility model has a simple structure and is easy to manufacture. The round holes at both ends of the Bailey bridge serve as insertion holes for the support rod assembly, making installation simple. Both ends of the high-strength steel wire rope are tightened via rigging screws, allowing construction workers to securely lock the locking rings at the ends of their safety belts onto the high-strength steel wire rope, which serves as a lifeline, providing reliable safety for workers walking on the Bailey bridge.
[0012] The advantages and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model installed on a Bailey beam;
[0014] Figure 2 yes Figure 1 Enlarged view of Part I;
[0015] Figure 3 yes Figure 1 Enlarged view of Part II. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] like Figures 1-3 As shown, this embodiment includes a high-strength steel wire rope 1, two support rod assemblies 2 and two rigging spiral buckles 3. The support rod assembly 2 includes a vertical rod 21 and a limiting tube 22 sleeved on and welded to the vertical rod 21 at both ends. The lower end of the vertical rod 21 passes through the round holes 302 on the upper and lower sides of the upper longitudinal rod 301 of the Bailey beam 30, and is limited by the lower end of the limiting tube 22.
[0018] Both ends of the high-strength steel wire rope 1 are connected to one end of the rigging screw buckle 3 via three steel wire rope clamps 11. The other end of the rigging screw buckle 3 is connected to a half-chain link 5 welded and fixed to the upper end of the upright 21 via a chain link 4. By rotating the rigging screw buckles 3 at both ends of the high-strength steel wire rope 1, the high-strength steel wire rope 1 can be tightened. Since the minimum tensile strength of the high-strength steel wire rope 1 in this embodiment is ≥2060 MPa, the high-strength steel wire rope 1, after being tightened by the rigging screw buckle 3, can be used to attach locking rings to the ends of several safety harnesses. In the event of a worker falling from the Bailey beam 30, the high-strength steel wire rope 1 will not break despite the sudden impact, thus serving as a lifeline to ensure the safety of the workers. Because the upper longitudinal rod 301 is 200mm thick, the lower end of the support rod assembly 2 supported on the upper longitudinal rod 301 is stably supported. When the upper end of the upright rod 21 is subjected to a large bending moment by the high-strength steel wire rope 1, although the upright rod 21 undergoes elastic deformation, it can promptly return to its original state after the impact load disappears, ensuring the safety of this utility model.
[0019] Both the upright 21 and the limiting tube 22 are made of round steel pipe, and the inner diameter of the upright matches the outer diameter of the limiting tube. In this embodiment, the upright 21 is made of steel pipe with an outer diameter of Φ36mm and a wall thickness of 4mm, and the limiting tube 22 is made of steel pipe with an outer diameter of Φ45mm and a wall thickness of 4mm. There is a 1mm gap when the limiting tube 22 is fitted into the upright 21, which makes it very convenient to fit and position the limiting tube 22.
[0020] like Figure 3 As shown, to prevent the lower end of the support rod assembly 2 from disengaging from the upper longitudinal rod 301 at the end of the Bailey beam 30, and to ensure that the support rod assembly 2 is firmly erected at both ends of the Bailey beam 30, the lower end of the locking chain 6 is connected to the half-ring 212 welded and fixed to the bottom sealing plate 211 of the upright, and the upper end of the locking chain 6 is connected to the hook ring 213 on the upright 21. One end of the hook ring 213 is welded and fixed to one side of the upright 21 and is adjacent to the upper end of the limiting tube 22.
[0021] The surfaces of the uprights 21 and the limiting tubes 22 are coated with yellow warning paint and reflective warning stickers 7 are affixed at intervals, which improves the recognizability of this utility model and reminds construction workers to walk carefully on the Bailey beams 30.
[0022] In addition to the above embodiments, the present invention may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.
Claims
1. A device for attaching a safety rope to a work safety belt, characterized in that, The system includes a high-strength steel wire rope, two support rod assemblies, and two rigging spiral buckles. The support rod assembly includes an upright and a limiting tube sleeved and welded to the upright at both ends. The lower end of the upright passes through the circular holes on the upper and lower sides of the upper longitudinal member of the Bailey beam and is limited by the lower end of the limiting tube. The two ends of the high-strength steel wire rope are connected to one end of the rigging spiral buckle through several steel wire rope clamps. The other end of the rigging spiral buckle is connected to a half-chain link welded to the upper end of the upright through a chain link.
2. The attachment device for the safety rope of a work safety belt as described in claim 1, characterized in that, Both the upright and the limiting tube are made of round steel pipe, and the inner diameter of the upright matches the outer diameter of the limiting tube.
3. The attachment device for the safety rope of a work safety belt as described in claim 1, characterized in that, The lower end of the locking chain is connected to a semi-ring welded and fixed to the bottom sealing plate of the pole, and the upper end of the locking chain is connected to a hook on the pole. One end of the hook is welded and fixed to one side of the pole and is adjacent to the upper end of the limiting tube.
4. The attachment device for the safety rope of a work safety belt as described in claim 1, characterized in that, The minimum tensile strength of the high-strength steel wire rope is ≥2060 MPa.
5. The attachment device for the safety rope of a work safety belt as described in claim 1, characterized in that, The surfaces of the uprights and limiting tubes are coated with yellow warning paint and have reflective stickers affixed at intervals.