A safety belt temporary suspension device for underground space engineering frame erection process
By designing a temporary safety belt suspension device that includes a force-bearing rod, a suspension ring, and a positioning component, the problem of where to hang the safety belt during construction was solved, thereby improving construction safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 11 CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-08-04
AI Technical Summary
In construction projects, the lack of a place to hang safety belts during the construction of tall scaffold formwork poses a safety hazard. Traditional hanging methods are prone to damage or detachment, resulting in significant safety risks.
Design a temporary suspension device for safety belts, including a force-bearing rod, a suspension ring, and a positioning component. The force-bearing rod is inserted into the opening of the upright of the engineering frame, the suspension ring is used to hang the safety belt, and the positioning component is used to fix it to ensure stable suspension.
It provides a stable and movable safety belt suspension point, which improves construction safety and reduces the risk of damage and detachment of the suspension device. It is suitable for the scaffolding erection process in underground space engineering.
Smart Images

Figure CN224585217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety protection technology for steel frame erection, specifically, to a temporary safety belt suspension device for the erection process of underground space engineering frames. Background Technology
[0002] In construction engineering, the development of underground space projects in large cities is increasing. The main structure of subway stations is a high-rise space. The high-rise scaffolding formwork project used in the construction of the main structure is a high-risk project that exceeds a certain scale. The scaffolding is generally erected using a coupler-type full-span scaffolding or a disc-type full-span scaffolding.
[0003] Because the construction of the main structure of the station is generally carried out in a sequential manner, that is, the bottom slab is constructed first, then the side walls are constructed, and finally the top slab is constructed, there is a safety hazard for workers at heights during the erection of the scaffolding, as there is nowhere to hang their safety belts. Traditionally, safety belts are often hooked directly to the uprights of the scaffolding or even tied to the uprights. However, the hooks have low strength and are easily damaged under stress. The length of the hooks inserted into the uprights is short and they are easy to fall off. The safety belts are also easily loosened when tied directly, all of which pose significant safety risks.
[0004] To solve this problem, a safety device needs to be designed for the temporary use of seat belts to address the various issues associated with temporary seat belt suspension. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a temporary safety belt suspension device suitable for temporary suspension of safety belts during the erection of underground space engineering frames, thus ensuring construction safety.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a temporary safety belt suspension device for the erection of an underground space engineering frame, comprising a force-bearing rod, a suspension ring, and a positioning component;
[0007] The force-bearing rod is a straight rod, and the positioning member is installed on at least two sides of the upper end of the force-bearing rod. The part of the force-bearing rod below the positioning member is used to insert into the upright opening of the engineering frame.
[0008] The suspension ring is located at the top of the force-bearing rod, and the suspension ring as a whole has a closed ring structure;
[0009] The diameter of the force-bearing rod profile is larger than the diameter of the suspension ring profile, and the diameter of the ring structure of the suspension ring is larger than the diameter of the force-bearing rod.
[0010] Preferably, the load-bearing rod is a steel pipe or a threaded steel bar.
[0011] Preferably, the diameter of the force-bearing rod is ≥25mm.
[0012] Preferably, the length of the support rod used for insertion into the opening of the engineering frame upright is ≥60cm.
[0013] Preferably, the suspension ring is made of plain round steel bar.
[0014] Preferably, the diameter of the plain round steel bar is between 14mm and 18mm.
[0015] Preferably, the suspension ring and the load-bearing rod are fixed together by welding.
[0016] Preferably, the positioning element is welded and fixed to both sides of the upper end of the force-bearing rod, and the positioning element is a threaded steel bar.
[0017] Preferably, the positioning element is welded and fixed to the four sides of the upper end of the force-bearing rod, the angle between adjacent positioning elements is 90°, and the positioning element is a threaded steel bar.
[0018] Preferably, the engineering frame is a full-span frame, and the uprights are the uprights that constitute the full-span frame.
[0019] This utility model has substantial features and progress compared to the prior art. Specifically, the temporary suspension structure designed in this utility model is used temporarily during construction operations. When the engineering frame is being erected, it is necessary to continue building upwards with the help of a construction platform. Therefore, a large number of uprights will inevitably be exposed on the construction platform. The force-bearing rod of this device is inserted into the opening of the upright, the buckle of the safety belt is fastened into the suspension ring, and then the frame is erected to ensure the safety of the workers. Attached Figure Description
[0020] Figure 1 This is a structural diagram of a temporary safety belt suspension device for the erection of an underground space engineering frame, as described in this utility model.
[0021] Figure 2 This is a schematic diagram illustrating the application of a temporary safety belt suspension device during the erection of an underground space engineering frame, as described in this utility model.
[0022] In the diagram: 1. Load-bearing rod; 2. Suspension ring; 3. Positioning component; 4. Upright pole. Detailed Implementation
[0023] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0024] like Figures 1-2 As shown, a temporary safety belt suspension device for the erection of an underground space engineering frame includes a force-bearing rod 1, a suspension ring 2, and a positioning component 3.
[0025] The force-bearing rod 1 is a straight rod. In this embodiment, the force-bearing rod 1 is made of threaded steel bar with a diameter ≥ 25mm and an overall length > 60cm.
[0026] The positioning element 3 is installed on at least two sides of the upper end of the force-bearing rod 1. In this embodiment, the positioning element 3 is welded and fixed to both sides of the upper end of the force-bearing rod 1. The positioning element 3 is a small section of threaded steel bar. Its main function is to increase the effective diameter of the upper end of the force-bearing rod 3 for positioning and limiting, forming a hanging structure that is attached to the opening of the upright 4.
[0027] The portion of the force-bearing rod 1 below the positioning component 3 is used to insert into the opening of the upright 4 of the engineering frame. The length of the inserted portion of the force-bearing rod 1 is ≥60cm to prevent the force-bearing rod 1 from easily detaching from the upright 4.
[0028] The engineering frame is a full-span frame, and the uprights 4 are the uprights that make up the full-span frame.
[0029] The suspension ring 2 is welded and fixed to the top of the force-bearing rod 1. The suspension ring 2 is a closed ring structure. It is made of plain round steel bar and has a diameter between 14mm and 18mm. It forms a closed ring structure and is used to attach the buckle of the safety belt.
[0030] The purpose of using plain round steel bars is to avoid creating too many stress points, which could cause the seat belt buckle to be pushed open by irregular forces, and also to avoid restricting the range of motion of the seat belt buckle.
[0031] Overall, the statement that the diameter of the force-bearing rod 1 is greater than the diameter of the suspension ring 2 means that the diameter of the force-bearing rod 1 is greater than the diameter of the plain round steel bar that makes up the suspension ring 2, rather than the diameter of the annular shape of the suspension ring 2.
[0032] The diameter of the suspension ring 2 ring structure is larger than the diameter of the force-bearing rod 1.
[0033] In other embodiments, the positioning element is welded and fixed to the four sides of the upper end of the force-bearing rod, the angle between adjacent positioning elements is 90°, and the positioning element is a threaded steel bar.
[0034] Technical principle explanation:
[0035] The construction of the main structure of the station is generally carried out in a sequential manner, that is, the base slab is constructed first, then the side walls are constructed, and finally the top slab is constructed. Therefore, during the construction process, the scaffolding is gradually raised as the construction progresses. During the construction of the scaffolding, a large number of upright openings will be exposed in each construction platform area for connecting the uprights of the next level. These openings are the foundation for the application of this device.
[0036] When workers are working on the construction platform area of the engineering scaffold, they carry the temporary suspension device to the designated work location, select the nearest upright, insert the load-bearing rod 1 into the upright 4 to form a suspension position, and then lock the safety belt buckle into the suspension ring 2 to start the construction work, which urgently requires the upward erection of the scaffold.
[0037] Because of its temporary nature, this device can be moved and adjusted according to the progress of the scaffolding erection and the scope of the work area, ensuring that the safety belt always has a suspension point during the scaffolding erection process.
[0038] In summary, all components of this device can be made from locally sourced materials and installed on-site. It allows for on-demand processing, making construction and installation simple and convenient. Furthermore, it can be moved along with the work surface, improving work efficiency while ensuring safety. This device is sturdy, durable, detachable, reusable, and resource-saving. It significantly enhances safety during scaffolding erection and is suitable for widespread application.
[0039] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A safety belt temporary suspension device for use in the construction of a space frame in an underground space engineering project, characterised in that: Includes load-bearing rods, suspension rings, and positioning components; The force-bearing rod is a straight rod, and the positioning member is installed on at least two sides of the upper end of the force-bearing rod. The part of the force-bearing rod below the positioning member is used to insert into the upright opening of the engineering frame. The suspension ring is located at the top of the force-bearing rod, and the suspension ring as a whole has a closed ring structure; The diameter of the force-bearing rod profile is larger than the diameter of the suspension ring profile, and the diameter of the ring structure of the suspension ring is larger than the diameter of the force-bearing rod.
2. A safety harness temporary suspension arrangement for use in a process for erecting a underground space engineering framework according to claim 1, characterised in that: The supporting rod is a steel pipe or a threaded steel bar.
3. A safety harness temporary suspension arrangement for use in a process for erecting a sub-surface engineering framework according to claim 2, characterised in that: The diameter of the force-bearing rod is ≥25mm.
4. A safety harness temporary suspension arrangement for use in a process for erecting a underground space engineering framework according to claim 3, characterised in that: The length of the support rod used for insertion into the opening of the engineering frame upright is ≥60cm.
5. The temporary safety belt suspension device for the erection of underground space engineering frames according to claim 4, characterized in that: The suspension ring is made of plain round steel bars.
6. A safety harness temporary suspension arrangement for use in a process for erecting a underground space engineering framework according to claim 5, characterised in that: The diameter of the plain round steel bar is between 14mm and 18mm.
7. The temporary safety belt suspension device for the erection of underground space engineering frames according to claim 6, characterized in that: The suspension ring and the load-bearing rod are fixed together by welding.
8. A safety harness temporary suspension arrangement for a underground space engineering framework erection process according to claim 7, characterized in that: The positioning element is welded and fixed to both sides of the upper end of the force-bearing rod, and the positioning element is a threaded steel bar.
9. The safety belt temporary suspension arrangement for underground space engineering frame erection processes according to claim 7, characterized in that: The positioning components are welded and fixed to the four sides of the upper end of the force-bearing rod, and the angle between adjacent positioning components is 90°. The positioning components are threaded steel bars.
10. The temporary safety belt suspension device for the erection of underground space engineering frames according to claim 8 or 9, characterized in that: The engineering frame is a full-span frame, and the uprights are the uprights that make up the full-span frame.