Safety belt tying and hanging device
By designing a safety belt fastening device consisting of a screw, a ring, and a steel plate, the problem of insufficient fastening points for safety belts on construction sites was solved, enabling convenient installation and reuse, and improving construction safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING URBAN CONSTR NORTH CONSTR
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-08
AI Technical Summary
In construction, the lack of safety belt fastening points near edges poses a safety hazard, and existing fastening devices are either non-standard or not reusable.
Design a safety belt fastening device comprising a screw, a ring, a steel plate, and a pin. One end of the screw has threads and a pin, and the other end has a slot. The ring is matched and connected to the screw. The steel plate can rotate and be stored in the slot. It is fixed to the wall by a nut, achieving convenient installation and reusability.
It provides a convenient way to fasten safety belts, ensuring construction safety, and the device is reusable, avoiding safety issues caused by arbitrary disassembly.
Smart Images

Figure CN224207248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a safety belt fastening device. Background Technology
[0002] In construction, the safety of on-site construction workers is of paramount importance in construction management. When workers are working near edges, they often cannot find a place to fasten their safety belts (ropes), which can easily lead to safety accidents.
[0003] Currently, most sites use methods such as setting up safety belt (rope) attachment points, fixing iron rings with expansion bolts, knotting steel wire ropes through bolt holes, and bending steel bars into hooks. These methods are prone to problems such as non-standard safety protection or the inability to reuse the equipment.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a reusable and highly safe seat belt fastening device.
[0006] To achieve the above objectives, this utility model provides a seatbelt fastening device, comprising: a screw, one end of which is threaded, and the other end of which is provided with a pin and a slot, the pin passing through the slot; a ring, the ring including a connecting structure having a first internal thread, the first internal thread matching the thread on the screw, the ring being connected to the screw via the first internal thread; a first nut, the first nut having a second internal thread matching the thread on the screw, the first nut being connected to the screw via the second internal thread and located between the pin and the ring; and a steel plate, the steel plate being accommodated in the slot and rotatably connected to the pin.
[0007] In one or more embodiments, a washer is provided at the end of the first nut near the steel plate.
[0008] In one or more embodiments, the steel plate is provided with an elongated hole, the width of which matches the diameter of the pin.
[0009] In one or more embodiments, the elongated hole is located in the middle of the steel plate and is provided along the length direction of the steel plate.
[0010] In one or more embodiments, the length of the steel plate is greater than the depth of the perforated groove. In one or more embodiments, the width of the perforated groove is greater than or equal to the width of the steel plate.
[0011] In one or more embodiments, the ring is fully welded to the screw.
[0012] In one or more embodiments, the other end of the screw is smooth.
[0013] In one or more embodiments, the gasket is welded to the first nut.
[0014] This invention provides a safety belt fastening device. A ring for fastening a safety belt is provided at one end of a screw rod, and a rotatable steel plate and a slot for connecting the steel plate are provided at the other end of the screw rod. Normally, the steel plate can be stored in the slot. When needed, the screw rod is first passed through a bolt hole in the wall. After passing through the bolt hole, the steel plate is rotated and horizontally fixed to the wall. Then, the first nut is tightened to secure the entire screw rod. At this point, the worker can fasten the safety belt to the ring. The operation is convenient, and installation can be achieved using existing bolt holes. It can be easily removed and placed when needed, allowing for reuse of the screw rod. Furthermore, due to the integrated design of the screw rod, pin, and steel plate, the steel plate is rotatably fixed inside the screw rod and cannot be disassembled, preventing workers from arbitrarily disassembling it and causing safety issues. Attached Figure Description
[0015] Figure 1 This is a structural diagram of a seatbelt fastening device provided in an embodiment of this utility model.
[0016] Figure 2 This is a detailed structural diagram of the steel plate of a seat belt fastening device provided in an embodiment of this utility model.
[0017] Figure 3 This is a diagram showing the usage state of a seatbelt fastening device provided in an embodiment of this utility model.
[0018] Figure 4 This is another usage state diagram of a seat belt fastening device provided in the embodiments of this utility model.
[0019] Explanation of key figure labels:
[0020] 1-Screw, 11-Pin, 12-Hollowed groove, 2-Ring, 21-Connecting structure, 3-First nut, 31-Washer, 4-Steel plate, 41-Elongated hole. Detailed Implementation
[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.
[0022] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.
[0023] A seatbelt fastening device, such as Figures 1 to 4 As shown, it includes: a screw 1, one end of which is threaded, and the other end is provided with a pin 11 and a slot 12, the pin 11 passing through the slot 12; a ring 2, the ring including a connecting structure 21 with a first internal thread, the first internal thread matching the thread on the screw 1, the ring 2 being connected to the screw 1 through the first internal thread; a first nut 3, the first nut 3 having a second internal thread matching the thread on the screw 1, the first nut 3 being connected to the screw 1 through the second internal thread and located between the pin 11 and the ring 2; and a steel plate 4, the steel plate 4 being accommodated in the slot 12 and rotatably connected to the pin 11.
[0024] Specifically, the steel plate 4 is housed within the perforated groove 12 and, during use, can pass through the bolt holes in the wall along with the screw 1. After passing through the bolt holes, the steel plate 4 can rotate due to its connection with the pin 11. The steel plate 4 rotates laterally and locks itself outside the wall. Through its engagement with the first nut 3, the screw 1 is fixed to the wall and will not move. After the screw 1 is fixed, the safety belt can be fastened to the ring 2. The first nut 3 matches the thread on the screw 1 and its position on the screw 1 can be adjusted by rotation, thereby changing the distance from the pin and, in conjunction with the steel plate 4, achieving fixation to the wall.
[0025] As an optional implementation, the first nut 3 is provided with a washer 31 at one end near the steel plate 4.
[0026] Specifically, the washer 31 can increase the contact area between the first nut 3 and the wall, increase the friction between them, and improve the stability of the fixation.
[0027] As an optional implementation, the steel plate 4 is provided with an elongated hole 41, the width of which matches the diameter of the pin.
[0028] Specifically, the pin passes sequentially through the screw 1 on one side of the hollow groove 12, the elongated hole 41 of the steel plate 4, and the screw 1 on the other side of the hollow groove 12.
[0029] As an optional implementation, the elongated hole 41 is located in the middle of the steel plate 4 and is arranged along the length direction of the steel plate 4.
[0030] Specifically, the elongated hole 41 is provided along the length of the steel plate 4. When the screw 1 needs to pass through the bolt hole in the wall, the steel plate 4 is inserted into the hollowed-out groove 12 and passes through the bolt hole together with the hollowed-out groove 12. After passing through the bolt hole, when it is necessary to horizontally clamp the steel plate 4 against the wall, the steel plate 4 is pulled out and then placed horizontally. Because the steel plate 4 has an elongated hole 41, the length that the other end of the screw 1 needs to extend out of the wall can be reduced, thereby reducing the length of the screw 1 and the number of turns required for the first nut 3 to be turned.
[0031] As an optional implementation, the length of the steel plate 4 is greater than the depth of the hollowed-out groove 12.
[0032] Specifically, the length of the steel plate 4 is greater than the depth of the hollow groove 12, and the front end of the steel plate 4 protrudes outside the hollow groove 12, so that after the screw 1 passes through the bolt hole, the steel plate 4 can be easily rotated through the protruding front end of the steel plate 4.
[0033] As an optional implementation, the width of the hollowed-out groove 12 is greater than or equal to the width of the steel plate 4.
[0034] Specifically, the width of the steel plate 4 is greater than or equal to the width of the hollow groove 12, so that the side of the steel plate 4 can be completely retracted into the hollow groove 12. After being retracted, the screw 1 can smoothly pass through the bolt hole on the wall.
[0035] As an optional implementation, the ring 2 is fully welded to the screw 1.
[0036] Specifically, after the ring 2 is rotatably connected to the screw 1 via an internal thread, the two are welded together. Full welding increases the connection strength between the ring 2 and the screw 1.
[0037] As an alternative implementation, the other end of the screw 1 is smooth.
[0038] Specifically, "smooth" means that the other end of the screw 1 has no threads.
[0039] As an optional implementation, the gasket 31 is welded to the first nut 3.
[0040] Specifically, the washer 31 is welded to the first nut 3, and when the nut rotates, the washer 31 rotates along with the nut.
[0041] By adopting the above technical solution, a safety belt fastening device is provided. A ring 2 for fastening a safety belt is provided at one end of the screw rod 1, and a rotatable steel plate 4 and a perforated groove 12 for connecting the steel plate 4 are provided at the other end of the screw rod 1. Normally, the steel plate 4 can be stored in the perforated groove 12. When needed, the screw rod 1 is first passed through the bolt hole in the wall. After passing through the bolt hole, the steel plate 4 is rotated and horizontally fixed to the wall. Then, the first nut 3 is tightened to secure the screw rod 1. At this point, the construction worker can fasten the safety belt to the ring 2. The operation is convenient, and installation can be achieved using existing bolt holes. It can be easily removed and placed when needed, allowing for the reuse of the screw rod 1. Furthermore, due to the integrated design of the screw rod 1, pin, and steel plate 4, the steel plate 4 is rotatably fixed inside the screw rod 1 and cannot be disassembled, preventing construction workers from arbitrarily disassembling it and causing safety problems.
[0042] Example 2:
[0043] The usage process of the seat belt fastening device of this utility model is as follows:
[0044] S1: Rotate the steel plate and retract it into the hollowed-out groove;
[0045] S2: Rotate the first nut until it is flush with the ring;
[0046] S3: Insert the screw into the bolt hole in the wall, so that the washer of the first nut is tightly against the wall;
[0047] S4: Secure the steel plate horizontally against the wall.
[0048] S5: Tighten the first nut so that the first nut and the steel plate are firmly against the wall to complete the fixing;
[0049] S6: Fasten the seatbelt onto the ring.
[0050] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A seatbelt fastening device, characterized in that, include: A screw, one end of which is threaded, and the other end is provided with a pin and a slot, the pin passing through the slot; A circular ring, the circular ring including a connecting structure with a first internal thread inside, the first internal thread matching the thread on the screw, the circular ring being connected to the screw through the first internal thread; A first nut, the first nut having a second internal thread that matches the thread on the screw, the first nut being connected to the screw via the second internal thread and located between the pin and the ring; A steel plate, which can be accommodated in the hollowed-out groove and is rotatably connected to the pin.
2. A seatbelt fastening device as described in claim 1, characterized in that, The first nut has a washer at the end near the steel plate.
3. A seatbelt fastening device as described in claim 1, characterized in that, The steel plate has an elongated hole, the width of which matches the diameter of the pin.
4. A seatbelt fastening device as described in claim 3, characterized in that, The elongated hole is located in the middle of the steel plate and is provided along the length of the steel plate.
5. A seatbelt fastening device as described in claim 1, characterized in that, The length of the steel plate is greater than the depth of the hollowed-out groove.
6. A seatbelt fastening device as described in claim 1, characterized in that, The width of the hollowed-out groove is greater than or equal to the width of the steel plate.
7. A seatbelt fastening device as described in claim 1, characterized in that, The ring is fully welded to the screw.
8. A seatbelt fastening device as described in claim 1, characterized in that, The other end of the screw is smooth.
9. A seatbelt fastening device as described in claim 2, characterized in that, The gasket is welded to the first nut.