A safety harness attachment for edge work

Abstract

A kind of edge operation safety belt fixing device, including bushing, screw rod, locking device and safety belt tie hanging ring, the outer diameter of bushing is adapted to the inner diameter of wall installation through-hole, one end is connected with screw rod by thread, the other end is provided with receiving groove, rotating lock block is assembled in receiving groove by pivot, rotating lock block can be completely received in groove, two sides of rotating lock block are divided into limiting section and self-weight section, self-weight section is heavier, can rotate around pivot and extend out of the side wall of bushing under the action of gravity, locking device with outer diameter larger than bushing is installed on the extension end of screw rod by thread, end part is provided with safety belt tie hanging ring, the device can be installed and removed by one person, can efficiently guarantee edge operation safety, and can be used repeatedly, green and environmental protection, installation and removal are simple, convenient to carry.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction safety protection equipment, and in particular relates to a safety belt fixing device for working near the edge. Background Technology

[0002] There are two main traditional methods for fixing safety belts for edge protection operations, but both methods have many drawbacks.

[0003] The first method involves pre-embedding round steel rings; however, this method presents significant inconveniences during actual construction. Construction workers must pre-embed rings at various locations where edge work might be involved before concrete pouring. This not only requires accurate prediction of the edge work area but also involves a tedious and time-consuming pre-embedding process. More importantly, these pre-embedded rings cannot be recycled after use, resulting in a serious waste of steel resources, which does not meet the requirements of modern construction for resource conservation and sustainable development.

[0004] The second method is to use traditional through-wall bolts for fixing. While this method can secure the safety belt to some extent, the operation is relatively complex. After the bolt passes through the outer wall, someone inside needs to work in sync to tighten it with nuts. This not only requires additional manpower, but the collaborative operation between the inside and outside increases the difficulty and time cost of construction. In addition, this method may affect the stability of the safety belt fixation due to improper coordination or inconsistent tightening of nuts, posing potential safety risks to workers near the edge.

[0005] In conclusion, the traditional fixed connection method for safety belts used in edge protection operations can no longer meet the current construction needs for efficiency, safety, and resource conservation. There is an urgent need to develop a more optimized and convenient fixed connection method to effectively reduce the risks of working near exterior walls and protect the lives of construction workers. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a reusable, easy-to-install and disassemble, and portable safety belt fixing device for edge work.

[0007] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0008] A safety belt fixing device for working near edges includes a through-wall sleeve, a screw rod, a locking device, and a safety belt fastening ring. The outer diameter of the through-wall sleeve matches the inner diameter of the mounting through hole in the wall. One end of the through-wall sleeve is coaxially threaded to the screw rod, and the other end of the through-wall sleeve has a storage groove extending along its central axis and penetrating the side wall of the through-wall sleeve. A rotating locking block is rotatably fitted in the storage groove via a rotating shaft. The rotating locking block is not larger than the size of the storage groove, so that the rotating locking block can be completely stored in the storage groove. And it does not extend out of the through-wall sleeve; the rotating locking block includes a limiting section and a self-weight section set on both sides of the rotating shaft. The weight of the self-weight section is greater than that of the limiting section. When the rotating locking block is rotated out of the storage groove, both ends of the rotating locking block can extend out of the side wall of the through-wall sleeve. A locking device is threadedly connected to the end of the screw that extends out of the through-wall sleeve. The outer diameter of the locking device is greater than the outer diameter of the through-wall sleeve. The distance between the locking device and the rotating locking block matches the thickness of the wall. A safety belt fastening ring is installed on the end of the screw that extends out of the through-wall sleeve.

[0009] In this embodiment, the storage groove is provided with a first limiting post and a second limiting post that limit the rotation angle of the rotating lock block. In the initial state, the weight section of the rotating lock block abuts against the first limiting post. At this time, the rotating lock block is stored in the storage groove, and the two ends of the rotating lock block do not protrude from the side wall of the through-wall sleeve. In the working state, the rotating lock block rotates under the action of its own weight section, and the other side of the weight section of the rotating lock block abuts against the second limiting post. At this time, the two ends of the rotating lock block protrude from the side wall of the through-wall sleeve.

[0010] In this embodiment, the rotating shaft is arranged perpendicular to the central axis of the through-wall sleeve.

[0011] In this embodiment, the locking device is a leaf-type fixing nut.

[0012] In this embodiment, the leaf-type fixing nut includes a locking nut and a retaining ring. The retaining ring is coaxially fixed on the side of the locking nut facing the rotating locking block. The outer diameter of the retaining ring is larger than the outer diameter of the through-wall sleeve. The locking nut is threaded onto the screw rod.

[0013] In this embodiment, the fixed end of the safety belt fastening ring is mounted on the screw via a universal ball joint.

[0014] Due to the above structure, this utility model has the following advantages:

[0015] 1. This device controls the retraction and extension of the rotating locking block by rotating the through-wall sleeve around its central axis. During installation, the through-wall sleeve is passed through the wall installation hole. After rotating the through-wall sleeve, the weight of the rotating locking block drives the rotating locking block to rotate, so that both ends of the rotating locking block automatically extend out of the side wall of the through-wall sleeve. Thus, the two sides of the rotating locking block that extend out serve as the fixed ends on one side of the wall, while the locking device serves as the fixed ends on the other side of the wall. The installation and fixation of the through-wall sleeve are completed by clamping the two sides of the rotating locking block with the locking device. Removal is done by reversing the operation. The above process is simple to operate, requires no multiple people to cooperate, and greatly saves manpower and time costs.

[0016] 2. The locking device of this device adopts a leaf-type fixing nut, whose outer diameter of the retaining ring is larger than the outer diameter of the through-wall sleeve. The distance between the nut and the rotating locking block can be adjusted according to the wall thickness. The two work together to clamp the wall, which greatly enhances the overall stability of the fixing device and ensures the safety of personnel working near the edge.

[0017] 3. The seat belt fastening ring is mounted on the screw via a universal ball joint, allowing for flexible adjustment of its direction to accommodate different fastening directions of the seat belt. This effectively prevents the seat belt from getting stuck on the ring, improving both ease of use and safety.

[0018] 4. This device can be reused after dismantling. Compared with the traditional pre-embedded round steel pull rings which cannot be recycled, it avoids steel waste, conforms to the construction concept of resource conservation and sustainable development, and reduces construction costs. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention.

[0020] Figure 2 This is the left view of the present invention.

[0021] Figure 3 This is a diagram showing the positional relationship between the rotating locking block and the limiting post of this utility model.

[0022] In the attached diagram: 1. Safety belt fastening ring; 2. Universal ball joint; 3. Locking device; 31. Locking nut; 32. Retaining ring; 4. Screw; 5. Through-wall sleeve; 6. Rotary locking block; 61. Self-weight section; 62. Limiting section; 7. Rotating shaft; 81. First limiting post; 82. Second limiting post. Detailed Implementation

[0023] To better understand this utility model, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. However, the implementation methods of this utility model are not limited thereto, and the protection scope of this utility model also includes equivalent technical means that can be conceived by those skilled in the art based on the concept of this utility model.

[0024] like Figure 1 , Figure 2As shown, a safety belt fixing device for edge work includes a through-wall sleeve 5, a screw 4, a locking device 3, and a safety belt fastening ring 1. The outer diameter of the through-wall sleeve 5 matches the inner diameter of the installation through hole in the wall. One end of the through-wall sleeve 5 is coaxially threaded to the screw 4. The other end of the through-wall sleeve 5 has a receiving groove extending along its central axis and penetrating the side wall of the through-wall sleeve 5. A rotating locking block 6 is rotatably fitted in the receiving groove via a rotating shaft 7. The rotating locking block 6 is not larger than the size of the receiving groove, so that the rotating locking block 6 can be completely stored in the receiving groove and does not protrude from the through-wall sleeve 5. The rotating shaft 7 is arranged perpendicular to the central axis of the through-wall sleeve 5. The rotating locking block 6 includes a limiting section 62 and a self-weight section 61 arranged on both sides of the rotating shaft 7. The weight of the self-weight section 61 is greater than that of the limiting section 62. Figure 3 As shown, further, the storage groove is provided with a first limiting post 81 and a second limiting post 82. The first limiting post 81 and the second limiting post 82 are both set on the rotation path of the self-weight section 61. The first limiting post 81 and the second limiting post 82 limit the rotation angle of the rotating locking block 6. In the initial state, one side of the self-weight section 61 of the rotating locking block 6 abuts against the first limiting post 81. At this time, the rotating locking block 6 is stored in the storage groove, and the two ends of the rotating locking block 6 do not protrude from the side wall of the through-wall sleeve 5. In the working state, the rotating locking block 6 rotates under the action of the self-weight section 61, and the other side of the self-weight section of the rotating locking block 6 abuts against the second limiting post 82. At this time, the two ends of the rotating locking block 6 protrude from the side wall of the through-wall sleeve 5.

[0025] The end of the screw 4 extending out of the through-wall sleeve 5 is a connecting section. A locking device 3 is threadedly connected to the connecting section of the screw 4. The outer diameter of the locking device 3 is larger than the outer diameter of the through-wall sleeve 5. A safety belt fastening ring 1 is installed on the end of the connecting section of the screw 4. The distance between the locking device 3 and the rotating locking block 6 matches the thickness of the wall.

[0026] like Figure 1 As shown, the locking device 3 is further described as a leaf-shaped fixing nut, which includes a locking nut 31 and a retaining ring 32. The retaining ring 32 is coaxially fixed on the side of the locking nut 31 facing the rotating locking block 6. The outer diameter of the retaining ring 32 is larger than the outer diameter of the through-wall sleeve 5. The locking nut 31 is threaded onto the screw rod 4. The leaf-shaped fixing nut can adjust the spacing according to the thickness of the wall and cooperate with the rotating locking block 6 to clamp the wall, greatly increasing the overall stability of the fixing device. The fixing end of the safety belt hanging ring 1 is installed on the screw rod 4 through a universal ball joint 2. Through the universal ball joint 2, the direction of the safety belt hanging ring 1 can be adjusted to adapt to different directions of the safety belt and prevent the safety belt from being jammed by the hanging ring.

[0027] During construction, connect the locking device 3, screw 4, and through-wall sleeve 5 together, and adjust the distance between the locking device 3 and the rotating locking block 6 to ensure it is greater than the thickness of the wall. Then, rotate the through-wall sleeve 5 around its central axis, as shown. Figure 3 As shown, the first limiting post 81 is positioned below the second limiting post 82. At this time, one side of the self-weight section of the rotating locking block 6 abuts against the first limiting post 81 and is stored in the storage groove. Then, the through-wall sleeve 5 is passed through the mounting hole on the wall, so that the end of the rotating locking block 6 passes through the wall and is positioned on the other side of the wall. The through-wall sleeve 5 is rotated again around its central axis, so that the second limiting post 82 is positioned below the first limiting post 81. At this time, the self-weight section of the rotating locking block 6 automatically rotates downward under the action of gravity until the other side of the self-weight section of the rotating locking block 6 abuts against the second limiting post 82. Then, the through-wall sleeve 5 is pulled back, so that the two ends of the rotating locking block 6 extending out of the through-wall sleeve abut against the wall. Then, the locking device 3 is rotated, and the through-wall sleeve 5 is locked to the wall through the cooperation of the locking device 3 and the rotating locking block 6. This completes the installation of the device, and it can be put into operation.

[0028] After construction is completed, rotate the locking device 3 in the reverse direction and loosen the locking device 3. Then, push the through-wall sleeve 5 outward while rotating the through-wall sleeve 5 around the central axis of the through-wall sleeve 5, so that the first limiting post 81 is placed below the second limiting post 82 again. At this time, the self-weight section of the rotating locking block 6 automatically rotates downward under the action of gravity and abuts against the first limiting post 81 again, so that the rotating locking block 6 is stored in the storage groove again. Then pull out the through-wall sleeve 5 to complete the dismantling of this device and realize the reuse of this device.

[0029] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A safety belt fixing device for working near edges, characterized in that: The system includes a through-wall sleeve, a threaded rod, a locking device, and a safety belt fastening ring. The outer diameter of the through-wall sleeve matches the inner diameter of the mounting hole in the wall. One end of the through-wall sleeve is coaxially threaded with a threaded rod, and the other end of the through-wall sleeve has a storage groove extending along its central axis and penetrating the side wall of the through-wall sleeve. A rotating locking block is rotatably fitted inside the storage groove via a rotating shaft. The rotating locking block is no larger than the size of the storage groove, allowing it to be completely retracted within the storage groove without protruding from the through-wall sleeve. The rotating locking block includes a limiting section and a self-weight section set on both sides of the rotating shaft. The weight of the self-weight section is greater than that of the limiting section. When the rotating locking block is rotated out of the storage groove, both ends of the rotating locking block can extend out of the side wall of the through-wall sleeve. A locking device is threadedly connected to the end of the screw that extends out of the through-wall sleeve. The outer diameter of the locking device is larger than the outer diameter of the through-wall sleeve. The distance between the locking device and the rotating locking block matches the thickness of the wall. A safety belt fastening ring is installed on the end of the screw that extends out of the through-wall sleeve.

2. The safety belt fixing device for working near edges according to claim 1, characterized in that: The storage slot is equipped with a first limiting post and a second limiting post that limit the rotation angle of the rotating lock block. In the initial state, the weight section of the rotating lock block abuts against the first limiting post. At this time, the rotating lock block is stored in the storage slot, and the two ends of the rotating lock block do not protrude from the side wall of the through-wall sleeve. In the working state, the rotating lock block rotates under the action of its own weight section, and the other side of the weight section of the rotating lock block abuts against the second limiting post. At this time, the two ends of the rotating lock block protrude from the side wall of the through-wall sleeve.

3. The safety belt fixing device for working near edges according to claim 1, characterized in that: The pivot is arranged perpendicular to the central axis of the through-wall sleeve.

4. The safety belt fixing device for working near edges according to claim 1, characterized in that: The locking device is a leaf-type fixing nut.

5. The safety belt fixing device for working near an edge according to claim 4, characterized in that: The leaf-type fixing nut includes a locking nut and a retaining ring. The retaining ring is coaxially fixed on the side of the locking nut facing the rotating locking block. The outer diameter of the retaining ring is larger than the outer diameter of the through-wall sleeve. The locking nut is threaded onto the screw.

6. The safety belt fixing device for working near an edge according to claim 1, characterized in that: The fixed end of the seat belt fastening ring is mounted on the screw via a universal ball joint.

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