Structural beam safety belt tying and hanging device

Abstract

The utility model provides a structural beam safety belt tying and hanging device, which belongs to the technical field of building construction safety supplies, and comprises a fixed arm and a movable arm, the lower end of the fixed arm is hinged with the lower end of the movable arm through a rotating shaft, the movable arm can rotate around the rotating shaft, and the fixed arm and the movable arm form a scissors-shaped structure through the rotating shaft; the lower end of the movable arm is further fixedly connected with a balancing weight, and when the balancing weight is in a natural falling state, the second fixed end of the movable arm is closed towards the first fixed end of the fixed arm, so that the first fixed end of the fixed arm and the second fixed end of the movable arm are buckled to the top face of the upper flange of the structural beam. A fastening hoop is arranged outside the rotating shaft in a surrounding mode, the fastening hoop is connected with a safety belt tying and hanging point through a fastening rope, and an extending section at the lower end of the fixing arm is connected with the safety belt tying and hanging point through a stress rope. The device can be easily buckled with a structural beam to form a safety belt fastening point, welding or drilling is not needed, and the installation efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of construction safety products, specifically to a safety belt fastening device for structural beams. Background Technology

[0002] Steel frame buildings are widely used in modern engineering due to their high strength and large span. However, the construction process involves a large number of edge-prone, suspended, and high-altitude operations (such as beam-column joint installation and floor slab laying). The working surface is generally more than 2 meters above the ground, posing a significant risk of worker falls and constituting a high-risk work scenario. Furthermore, the smooth surfaces and narrow cross-sections of steel beams and columns lack standardized safety belt anchor points, leading to situations where workers are required to work near edges or at heights during floor construction. Workers frequently fail to wear safety belts or do not adhere to the "high-attach, low-use" safety procedure, creating safety hazards and potentially causing accidents.

[0003] In summary, there is an urgent need to develop a dedicated safety belt fastening device that is dynamically adaptable to steel frame construction and easy to assemble and disassemble quickly. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies, such as complex structures and inconvenient operation, by providing a structural beam safety belt fastening device. By designing a "scissor-shaped" double-arm structure, the device can easily snap into the structural beam to form a safety belt fastening point, and it does not require welding or drilling, resulting in high installation efficiency.

[0005] Technical Solution: The present invention discloses a structural beam safety belt fastening device, comprising a fixed arm and a movable arm. The first fixed end of the fixed arm is fastened to the structural beam, and the second fixed end of the movable arm is fastened to a symmetrical position on the same structural beam. The lower ends of the fixed arm and the movable arm are hinged together by a pivot, allowing the movable arm to rotate around the pivot. The fixed arm and the movable arm form a scissor-shaped structure via the pivot. A counterweight is also fixedly connected to the lower end of the movable arm. When the counterweight is in a natural falling state, the second fixed end of the movable arm closes towards the first fixed end of the fixed arm, causing the first fixed end of the fixed arm and the second fixed end of the movable arm to fasten to the top surface of the upper flange of the structural beam. A fastening ring is arranged around the outside of the pivot, and the fastening ring is connected to the safety belt fastening point via a fastening rope. The extension section at the lower end of the fixed arm is connected to the safety belt fastening point via a force-bearing rope.

[0006] The fixed arm and movable arm form a scissor-like structure via a pivot. Both the fixed and movable arms have a "7" shape at their upper ends, allowing them to hook onto the upper edge of the steel beam, similar to the two claws of a clamp, thus securing them to the beam. A counterweight at the lower end of the movable arm helps maintain balance at the pivot, but the slightly heavier counterweight allows the movable arm to naturally tend to close, clamping the steel beam and achieving mechanical self-locking. A fastening ring is located at the pivot and connected to the safety harness attachment point via a fastening rope. The lower extension of the fixed arm is connected to the same attachment point via a load-bearing rope. The fastening rope is shorter than the load-bearing rope plus the extension; therefore, after installation, the fastening rope is tensioned first, tightening the fastening ring and causing the scissor arm to clamp the steel beam. The load-bearing rope then bears the main impact force and is only tightened after the fastening is complete, thus distributing the force and achieving dynamic force amplification.

[0007] Furthermore, it includes assembly and disassembly tools, which include a handle and a round tube located at the top of the handle, with a zigzag groove on the outer wall of the round tube.

[0008] When workers use the assembly / disassembly tools, they may place a round tube over the extension of the fixed arm and apply force using the handle to move the fixed arm, opening the scissor arm for easy placement on the steel beam. After releasing the tool, a counterweight closes the movable arm, clamping the steel beam. The securing rope is tightened when the safety harness is fastened, further locking the securing loop and enhancing the clamping force. In the event of a fall, the tension rope absorbs the impact.

[0009] Furthermore, the length of the fastening rope is shorter than the combined length of the load-bearing rope and the extension section. Due to this length design, the force is transmitted to the fixed arm, while the fastening rope remains clamped, preventing the device from slipping or falling off.

[0010] Furthermore, the cross-section of the first fixed end is F-shaped, including two first horizontal plates arranged in parallel by a connecting plate. The two horizontal plates and the connecting plate form a slot with an opening facing the structural beam. During installation, the upper flange of the structural beam is inserted into the slot.

[0011] Furthermore, the cross-section of the second fixed end is U-shaped, including a second horizontal plate and a vertical plate connected vertically. During installation, the second horizontal plate is placed on the top surface of the upper flange of the structural beam, and gravity is used to make the second fixed end snap into the structural beam.

[0012] Furthermore, the weight range of the counterweight is 5~18kg.

[0013] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:

[0014] This invention employs gravity self-locking, where the weight of the counterweight locks the rotating shaft in place, and dynamic force amplification through a dual design of both the securing rope and the load-bearing rope. When subjected to the impact load of a safety belt falling, the device transforms the external load into a greater clamping force through mechanical leverage and the self-locking mechanism, thereby enhancing the fixation effect between the device and the steel beam. This invention solves the industry pain point of lacking reliable attachment points for safety belts in high-altitude operations, achieving improvements in safety, efficiency, and cost, while also meeting the stringent working conditions required for high-strength steel frame construction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the tethering device in this invention;

[0016] Figure 2 This is a schematic diagram of the assembly / disassembly tool in this invention;

[0017] Figure 3 This is a cross-sectional view of the assembly / disassembly tool in this invention. Detailed Implementation

[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0019] like Figure 1 The structural beam safety belt fastening device shown includes a fixed arm 1 and a movable arm 2. The first fixed end 101 of the fixed arm 1 is fastened to the structural beam 10, and the second fixed end 201 of the movable arm 2 is fastened to a symmetrical position on the same structural beam 10. The lower end of the fixed arm 1 and the lower end of the movable arm 2 are hinged through a pivot 3, and the movable arm 2 can rotate around the pivot 3. The fixed arm 1 and the movable arm 2 form a scissor-shaped structure through the pivot 3. A counterweight 4 with a weight of 10 kg is also fixedly connected to the lower end of the movable arm 2. When the counterweight 4 is in a natural falling state, the second fixed end 201 of the movable arm 2 closes towards the first fixed end 101 of the fixed arm 1, so that the first fixed end 101 of the fixed arm 1 and the second fixed end 201 of the movable arm 2 are locked onto the top surface of the upper flange of the structural beam. A fastening ring 5 is arranged around the outside of the rotating shaft 3. The fastening ring 5 is connected to the safety belt attachment point 8 through the fastening rope 6. The extension section 102 at the lower end of the fixed arm 1 is connected to the safety belt attachment point 8 through the force rope 7. The length of the fastening rope 6 is shorter than the combined length of the force rope 7 and the extension section 102. The cross-section of the first fixed end 101 is F-shaped, including two first horizontal plates arranged parallel to each other through the connecting plate. The two horizontal plates and the connecting plate form a slot with an opening facing the structural beam. During installation, the upper flange of the structural beam is inserted into the slot. The cross-section of the second fixed end 201 is shaped like the number 7, including a second horizontal plate and a vertical plate that are vertically connected. During installation, the second horizontal plate is placed on the top surface of the upper flange of the structural beam, and gravity is used to make the second fixed end 201 snap into the structural beam.

[0020] like Figure 2 and Figure 3 The assembly / disassembly tool 9 shown includes a handle 901 and a round tube 902 located at the top of the handle 901. A zigzag groove 903 is provided on the outer wall of the round tube 902.

[0021] The installation method in this embodiment is as follows:

[0022] 1) Slide the round tube of the assembly / disassembly tool over the lower end of the extension section of the fixed arm;

[0023] 2) Push the fastening ring to the pivot point;

[0024] 3) When the tool is in a vertical position, the fixed arm and the movable arm form a scissor-like opening;

[0025] 4) Lift up the assembly / disassembly tool and hook the fixed end of the fixing arm onto the lower flange of the structural I-beam;

[0026] 5) Slowly lower the assembly and disassembly tools, and under the action of the counterweight, the fixed end of the movable arm hooks onto the lower flange of the other side of the structural I-beam;

[0027] 6) Continue to remove the assembly and disassembly tools, straighten the fastening rope and the tension rope, and make the fastening ring fit below the pivot, thereby locking the fixed arm and the movable arm. When the safety belt attachment point is under force, ensure that the fixed arm and the movable arm will not loosen.

[0028] The dismantling method in this embodiment is as follows:

[0029] 1) Slide the installation tool through the tension rope onto the lower end of the extension section of the fixed arm, and thread the tension rope through the zigzag groove;

[0030] 2) Push the assembly / disassembly tool upwards to move the fastening ring to the pivot, and push the upper part of the round tube to open the movable arm;

[0031] 3) Move the assembly and disassembly tools and remove the fastening ring from one side of the fixed arm;

[0032] 4) The assembly and disassembly tools are slipped onto the lower end of the extension section of the fixed arm through the tension rope;

[0033] 5) Push the assembly and disassembly tools upwards to move the fastening ring to the pivot, and push the upper part of the round tube to open the movable arm;

[0034] 6) Move the disassembly tool and remove the fastening ring from one side of the fixed arm.

[0035] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A safety belt fastening device for structural beams, characterized in that: The structure includes a fixed arm (1) and a movable arm (2). The first fixed end (101) of the fixed arm (1) is fastened to the structural beam, and the second fixed end (201) of the movable arm (2) is fastened to a symmetrical position on the same structural beam. The lower end of the fixed arm (1) and the lower end of the movable arm (2) are hinged together by a pivot (3). The movable arm (2) can rotate around the pivot (3). The fixed arm (1) and the movable arm (2) form a scissor-shaped structure through the pivot (3). A counterweight (4) is also fixedly connected to the lower end of the movable arm (2). When the counterweight (4) is in a natural downward position... When in the lowered state, the second fixed end (201) of the movable arm (2) closes toward the first fixed end (101) of the fixed arm (1), so that the first fixed end (101) of the fixed arm (1) and the second fixed end (201) of the movable arm (2) are snapped onto the top surface of the upper flange of the structural beam; a fastening ring (5) is provided around the outside of the rotating shaft (3), and the fastening ring (5) is connected to the safety belt attachment point (8) through the fastening rope (6), and the extension section (102) at the lower end of the fixed arm (1) is connected to the safety belt attachment point (8) through the force-bearing rope (7).

2. The structural beam safety belt fastening device according to claim 1, characterized in that: The tool includes a disassembly tool (9), which includes a handle (901) and a round tube (902) located at the top of the handle (901). A zigzag groove (903) is provided on the outer wall of the round tube (902).

3. A structural beam safety belt fastening device according to claim 1, characterized in that: The length of the fastening rope (6) is shorter than the combined length of the tension rope (7) and the extension (102).

4. A structural beam safety belt fastening device according to claim 1, characterized in that: The first fixed end (101) has an F-shaped cross section and includes two first horizontal plates arranged in parallel by a connecting plate. The two horizontal plates and the connecting plate form a slot with an opening facing the structural beam. During installation, the upper flange of the structural beam is inserted into the slot.

5. A structural beam safety belt fastening device according to claim 1, characterized in that: The second fixed end (201) has a 7-shaped cross section, including a second horizontal plate and a vertical plate connected vertically. During installation, the second horizontal plate is placed on the top surface of the upper flange of the structural beam, and gravity is used to make the second fixed end (201) snap into the structural beam.

6. A structural beam safety belt fastening device according to claim 1, characterized in that: The weight range of the counterweight (4) is 5~18kg.

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