A punch-free safety rope hanger

CN224723549UActive Publication Date: 2026-09-08CHINA CONSTR FOURTH ENG DIV CORP LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522152894.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-09-08
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

[0004]本实用旨在解决传统安全绳挂架无法移动还会破坏墙体的技术问题

Benefits of technology

1、通过U型框架与螺纹杆的配合环抱式夹持梁体,从而利用悬挂支架安装安全绳,因此无需在梁体上打孔,即可实现安全绳挂架的固定,还可以避免破坏建筑的结构,适用于各种类型的混凝土梁体,由于螺纹杆与螺纹孔之间的螺纹连接,使得螺纹杆具有左右方向的可调节性,不仅可适用不同尺寸的梁体的夹持,还可便于安全绳挂架的拆卸移动。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224723549U_ABST
    Figure CN224723549U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of safety rope hangers of exempt from punching, belong to the field of construction.Safety rope hanger includes U-shaped frame, the side wall of U-shaped frame is equipped with two threaded holes, threaded hole is threadedly connected with threaded rod, one end of threaded rod extends to U-shaped frame, and with the other side inner wall of U-shaped frame is mutually matched and clamped on beam body, the bottom of U-shaped frame is fixedly connected with suspension support, and beam body is clamped by U-shaped frame and threaded rod cooperation, without punching on beam body, avoid damaging building structure, suitable for various types of concrete beam body;Due to the adjustability of threaded rod, not only can be applicable to different sizes of beam body, but also can facilitate the disassembly and movement of safety rope hanger.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, specifically to a safety rope hanger that does not require drilling. Background Technology

[0002] Safety rope hangers are specialized protective devices used to secure safety ropes during high-altitude operations. Their core function is to provide workers with reliable safety rope connection points to prevent falls. They are primarily used in work environments with a risk of falls from height. When a worker accidentally falls, the hanger uses the safety rope to pull the person down, controlling the fall height within a safe range and reducing impact injuries. The hanger can transfer the impact force generated by the fall to a sturdy building or equipment structure, preventing the impact force from directly acting on the human body or any single weak component. Some hangers can be adjusted in length to accommodate the safety rope, helping workers maintain stability within a specific area without restricting their necessary range of movement.

[0003] According to national standards, any work at a height of 2 meters or more is considered work at height, and safety ropes must be used. In construction work, ceiling work often involves working at heights exceeding 2 meters, thus also constituting work at height and requiring the use of safety ropes. The traditional method of suspension is to fix the ropes to the concrete beam with bolts. While this method provides some suspension support, it has several drawbacks. Firstly, once the traditional bolted bracket is installed in a fixed position, it cannot be disassembled or moved. Secondly, the bolting method can damage the concrete beam. Utility Model Content

[0004] This utility model aims to solve the technical problems of traditional safety rope hangers being unable to move and damaging walls.

[0005] To solve the above-mentioned technical problems, the objective of this utility model can be achieved through the following technical solution: A drill-free safety rope hanger includes a U-shaped frame. Two threaded holes are formed on one side wall of the U-shaped frame. A threaded rod is threaded into the threaded hole. One end of the threaded rod extends into the U-shaped frame and cooperates with the inner wall of the other side of the U-shaped frame to clamp onto the beam. A suspension bracket is fixedly connected to the bottom of the U-shaped frame.

[0006] As a further embodiment of this utility model: a clamping block is hinged to one end of the threaded rod that extends into the U-shaped frame.

[0007] As a further embodiment of this utility model: an adjustment rod is fixedly connected to one end of the threaded rod outside the U-shaped frame.

[0008] As a further embodiment of this utility model: a buffer pad is provided on the inner wall of the U-shaped frame away from the threaded hole, and the surface of the buffer pad is provided with a diamond-shaped anti-slip texture.

[0009] As a further embodiment of this utility model, a fixing frame is provided at the stress concentration point of the U-shaped frame.

[0010] As a further embodiment of this invention: the direction of the two threaded holes is perpendicular to the side wall of the U-shaped frame, ensuring that the threaded rod applies a vertical clamping force to the beam.

[0011] As a further embodiment of this utility model, the suspension bracket and the U-shaped frame are detachable.

[0012] As a further embodiment of this utility model, the buffer pad is made of nitrile rubber with a thickness of 3-5mm.

[0013] As a further embodiment of this utility model, the suspension bracket is provided with fixing holes.

[0014] As a further embodiment of this utility model: the fixing frame is a right-angled triangle structure, and the two right-angled sides are fixedly connected to the side wall of the U-shaped frame and the bottom inner wall of the U-shaped frame respectively by fillet welds.

[0015] The beneficial effects of this utility model are: 1. The U-shaped frame and threaded rod work together to clamp the beam in a ring-like manner, thereby allowing the safety rope to be installed using a suspension bracket. Therefore, there is no need to drill holes in the beam to fix the safety rope bracket, which can also avoid damaging the building structure. It is suitable for various types of concrete beams. Due to the threaded connection between the threaded rod and the threaded hole, the threaded rod has left and right adjustability, which can not only be used to clamp beams of different sizes, but also facilitates the disassembly and movement of the safety rope bracket. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a front view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the U-shaped frame of this utility model; Figure 4 This is a schematic diagram of the structure of the control rod of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. U-shaped frame; 2. Adjusting rod; 3. Buffer pad; 4. Suspension bracket; 5. Fixing bracket; 6. Tightening block; 7. Threaded rod; 8. Threaded hole. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 As shown, this utility model is a safety rope hanger that does not require drilling, including a U-shaped frame 1. Two threaded holes 8 are opened on one side wall of the U-shaped frame 1. A threaded rod 7 is connected to the threaded hole 8 by an internal thread. The threaded rod 7 has an external thread that matches the threaded hole 8. One end of the threaded rod 7 passes through the threaded hole 8 and extends into the U-shaped frame 1, and cooperates with the inner wall of the other side of the U-shaped frame 1 to clamp the safety rope hanger on the beam. A suspension bracket 4 is fixedly connected to the bottom of the U-shaped frame 1, and the safety rope is fixed by the suspension bracket 4. One end of the threaded rod 7 extending into the U-shaped frame 1 is hinged to a clamping block 6. The surface to be clamped inside the U-shaped frame 1, i.e. the beam, may have slight inclination or local unevenness. Through the hinge between the threaded rod 7 and the clamping block 6, the clamping block 6 is allowed to freely adjust its angle around the hinge point, ensuring that the clamping block 6 can form a fully fitted surface contact with the contact surface, rather than a point contact or line contact with localized force. This avoids clamping failure due to poor contact, thereby ensuring the overall load-bearing capacity of the safety rope hanger.

[0021] The threaded rod 7 is fixedly connected to an adjusting rod 2 at one end outside the U-shaped frame 1. The adjusting rod 2 allows for easy adjustment of the threaded rod 7, saving effort. A buffer pad 3 is provided on the inner wall of the U-shaped frame 1 on the side away from the threaded hole 8. The surface of the buffer pad 3 is provided with a diamond-shaped anti-slip texture. The buffer pad 3 is made of nitrile rubber with a thickness of 3-5mm. When the clamping block 6 applies clamping force or when slight vibration occurs during operation, the buffer pad 3 can absorb the impact energy through its own deformation, avoiding surface damage caused by direct contact between the U-shaped frame and the beam. The diamond-shaped anti-slip texture can increase the contact friction between the buffer pad 3 and the beam by 30%-50%, which is much higher than that of a flat pad, preventing the safety rope hanger from sliding and shifting due to vibration during operation.

[0022] A fixing frame 5 is provided at the stress concentration point of the U-shaped frame 1. The stress concentration point refers to the bend between the side wall and the bottom of the U-shaped frame 1. The fixing frame 5 is a right-angled triangle structure. The two right-angled sides are fixedly connected to the inner wall of the U-shaped frame 1 and the bottom inner wall of the U-shaped frame 1 respectively by fillet welds. The hypotenuse of the right-angled triangle faces the inside of the U-shaped frame 1. The load at the stress concentration point of the U-shaped frame 1 is distributed by the triangular stabilizing structure, so as to avoid deformation of the U-shaped frame 1 due to the force when the safety rope is suspended by the hanger.

[0023] The two threaded holes 8 are perpendicular to the side wall of the U-shaped frame 1, ensuring that the threaded rod 7 applies a vertical clamping force to the beam. Generally, the surface of the beam is flat, and the direction of the clamping force is completely perpendicular to the surface of the beam, so that no lateral component force is generated along the surface of the beam. This can prevent the threaded rod 7 from bending and deforming due to eccentric force, thus extending its service life. At the same time, it ensures that the preset clamping force is fully applied to the clamping and fixing, rather than being wasted on directional offsetting. In high-altitude operations, it ensures that the entire safety rope hanger device is always anchored in the preset position, avoiding the safety rope hanger from becoming displaced due to slippage.

[0024] In another embodiment, the suspension bracket 4 and the U-shaped frame 1 are detachable by bolts, so that different shapes of suspension bracket 4 can be replaced to adapt to different working conditions.

[0025] In another embodiment, the suspension bracket 4 is provided with fixing holes. The purpose of fixing holes is to fix the position of the safety rope and prevent the safety rope from swaying back and forth during use. The position of the fixing point is calculated to ensure that the force direction of the safety rope is consistent with the load-bearing direction of the suspension bracket 4, avoiding the force shift of the fixing point due to rope movement and the generation of lateral tension. In the event of an accidental fall, the stable force direction allows the impact force to be transmitted to the U-shaped frame and beam along a preset path, reducing structural damage or impact overload caused by force disorder. The fixing holes can confine the safety rope to a specific area, preventing it from repeatedly rubbing against the suspension bracket 4 during operation, reducing wear on the rope surface, and extending the service life of the safety rope. At the same time, it can prevent the safety rope from getting tangled on other parts, avoiding being hooked and causing imbalance during operation, or the rope not being able to unfold smoothly in an emergency.

[0026] The working principle of the drill-free safety rope holder involved in this utility model is as follows: Before using the safety rope hanger, the threaded rod 7 should be retracted to a suitable position so that there is enough clamping space in the middle of the U-shaped frame 1. The safety rope hanger should be moved to the working beam so that the beam is in the middle of the U-shaped frame 1. The position of the safety rope hanger should be adjusted so that one side of the buffer pad 3 is close to the beam. The suspension bracket 4 should be in a position that is easy to connect the safety rope and does not affect the worker's work. Rotate the adjusting rod 2 at one end of the threaded rod 7. The threaded rod 7 drives the top clamping block (7) to move towards the beam and gradually clamp the beam. During the rotation, the two adjusting rods 2 need to be operated synchronously so that the clamping force on the upper and lower sides is uniform and the U-shaped frame can be stably held by the beam. You can check whether it is firm by observing or shaking the hanger by hand. If there is still shaking, continue to rotate the adjusting rod 2 until the safety rope hanger is stable. Securely attach the safety rope's buckle or hook to the suspension bracket 4, ensuring a tight connection with no signs of loosening. Gently pull the safety rope to check the reliability of the connection, and then readjust the control rod 2. After the worker completes the high-altitude work, first disconnect the safety rope from the suspension bracket 4, tidy up and retract the safety rope, then rotate the control rod 2 in the opposite direction to separate the clamping block 6 from the beam, releasing the clamping force of the U-shaped frame 1 on the beam. Remove the safety rope hanger, clean the surface debris, and store it properly for future use.

[0027] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A punchless safety line hanger, comprising: The U-shaped frame (1) has two threaded holes (8) on one side wall. A threaded rod (7) is threaded into the threaded hole (8). One end of the threaded rod (7) extends into the U-shaped frame (1) and cooperates with the other side wall of the U-shaped frame (1) to clamp onto the beam. A suspension bracket (4) is fixedly connected to the bottom of the U-shaped frame (1).

2. A punchless safety line carabiner according to claim 1, wherein, The threaded rod (7) extends into the U-shaped frame (1) and is hinged to one end with a clamping block (6).

3. A punchless safety line carabiner according to claim 1, wherein, The threaded rod (7) is fixedly connected to an adjusting rod (2) at one end outside the U-shaped frame (1).

4. A punchless safety line carabiner according to claim 1, wherein, A buffer pad (3) is provided on the inner wall of the U-shaped frame (1) away from the threaded hole (8), and the surface of the buffer pad (3) is provided with a diamond-shaped anti-slip texture.

5. A punchless safety line carabiner according to claim 1, wherein, The stress concentration points of the U-shaped frame (1) are provided with fixing frames (5).

6. A punchless safety line carabiner according to claim 1, wherein, The two threaded holes (8) are both perpendicular to the sidewall of the U-shaped frame (1) to ensure that the threaded rod (7) applies a vertical clamping force to the beam.

7. A punchless safety line carabiner according to claim 1, wherein, The suspension bracket (4) is detachable from the U-shaped frame (1).

8. A punchless safety line carabiner according to claim 4, wherein, The buffer pad (3) is made of nitrile rubber with a thickness of 3-5mm.

9. A punchless safety line carabiner according to claim 1, wherein, The suspension bracket (4) has a fixing hole.

10. A punchless safety line carabiner according to claim 5, wherein, The fixing frame (5) is a right-angled triangle structure, and the two right-angled sides are fixedly connected to the inner wall of the U-shaped frame (1) through fillet welds.