Safety line fixing device for high-altitude operation
By designing a support frame and a safety line fixing device with a C-shaped hook, the problem of repeatedly attaching and detaching the safety rope hook was solved, enabling efficient and safe high-altitude operations.
Patent Information
- Application Number
- CN202422560877.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In existing high-altitude operations, conventional safety line fixing devices cause the safety rope hooks to be repeatedly removed and re-attached, which is inefficient and poses safety hazards.
Design a safety line fixing device including a support frame and a C-hook. The support frame is fixed to the flange plate of the steel structure by locking bolts. The locking part of the C-hook can be rotated to allow the safety line hook to pass through. The elastic element ensures the switching of the closed state and simplifies the operation of workers.
It improves the efficiency of high-altitude operations, reduces safety risks, simplifies workers' movement along the safety line, and enhances safety.
Smart Images
Figure CN223490296U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-altitude operation safety protection technology, specifically relating to a safety line fixing device for high-altitude operations. Background Technology
[0002] With the continuous development of the construction industry and the increasing sophistication of high-altitude work techniques, more and more construction projects are adopting high-altitude work techniques. However, falls are prone to occur during high-altitude operations. The conventional practice is to install safety lines on roof trusses and crane beams to prevent falls. Common safety line fixing devices typically involve threading the safety line through a loop or hole on a fixed pole, with multiple fixing devices securing a single safety line. Workers attach a safety rope to the safety line during operations. Because these loops or holes are usually small enough to allow the safety rope hook to pass through, workers often need to repeatedly attach and detach the safety rope hook while moving along the safety line to pass through these fixing devices. This is not only cumbersome and inefficient but also poses a safety hazard. Utility Model Content
[0003] To address the aforementioned technical problems, this application provides a safety line fixing device for high-altitude operations, comprising a support frame and a C-shaped hook. The support frame includes a first support plate and a second support plate arranged in parallel, and a connecting plate arranged perpendicularly to the first and second support plates. The connecting plate is connected to the first and second support plates respectively, forming a cavity that can accommodate a steel structure flange plate. At least one locking bolt is threaded onto the first support plate. When the steel structure flange plate is inserted into the cavity, the locking bolt can be used to clamp the steel structure flange plate to the second support plate, thereby fixing the support frame to the steel structure flange plate.
[0004] The C-shaped hook has an upper protrusion and a lower protrusion at its open end. The C-shaped hook is connected to the first support plate. A locking member is movably connected to the lower protrusion. When the locking member contacts the upper protrusion, the locking member and the C-shaped hook form a closed space through which a safety line can pass, thus supporting the safety line. When the locking member moves away from the upper protrusion, the gap formed between the locking member and the C-shaped hook allows the safety rope hook to pass through. When workers move along the safety line, it is not necessary to unfasten and re-hook the safety rope hook, thereby improving work efficiency and reducing safety risks. The C-shaped hook also includes an elastic element that keeps the locking member in contact with the upper protrusion, further enhancing safety.
[0005] In some embodiments, the lower end of the locking member is rotatably connected to the lower protrusion, and the first plane on which the locking member rotates is perpendicular to the second plane on which the C-shaped hook is located. The lower end of the locking member is provided with a spring slot, and the lower protrusion is provided with a spring retaining groove at a position corresponding to the spring slot. The spring slot and the spring retaining groove form a space for accommodating the elastic element. The width direction of the space is parallel to the second plane. The elastic element is a leaf spring, with one end placed in the spring slot and the other end placed in the spring retaining groove.
[0006] In some embodiments, the locking member includes a guide rod and a locking top block disposed at one end of the guide rod. The lower protrusion is provided with a through hole along its length, the guide rod passes through the through hole, the locking top block contacts the upper protrusion, and the elastic element passes through the guide rod. One end of the elastic element is connected to the lower protrusion, and the other end is connected to the locking top block.
[0007] In some embodiments, the two adjacent sides of the first support plate and the second support plate are fixedly connected by a connecting plate.
[0008] In some embodiments, the support frame includes two C-shaped connecting plates arranged opposite each other, with the first support plate and the second support plate rigidly supported between two adjacent sides of the two connecting plates.
[0009] The C-shaped hook can be fixed to the support frame by welding or by thread.
[0010] As a further improvement, a locking groove is provided at the contact point between the locking member and the upper protrusion, into which the upper protrusion can be inserted. This can improve the stress state of the locking member when supporting the safety line, making the locking of the C-shaped hook more reliable.
[0011] Furthermore, a locking nut is fitted onto the locking bolt to prevent the locking bolt from loosening due to vibration or other reasons during use, which could cause the support frame to detach from the steel structure flange.
[0012] In some embodiments, the support frame may further include a support column, one end of which is connected to the first support plate and the other end of which is connected to the C-hook, which can meet the need for using safety lines at different heights.
[0013] The beneficial effects of this application are as follows: By setting a locking element on the C-hook that can contact or move away from the upper protrusion, the C-hook can support the safety line and allow the safety rope hook to pass through the gap formed by the locking element and the C-hook. Workers do not need to repeatedly remove and re-attach the safety rope hook when moving along the safety line, thereby improving work efficiency and reducing safety risks. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0015] Figure 1 This is a perspective view of the first embodiment of this application;
[0016] Figure 2 This is a front view of the first embodiment of this application;
[0017] Figure 3 This is a partial enlarged view of the first embodiment of this application;
[0018] Figure 4 This is a perspective view of the locking element in the improved embodiment of the first embodiment of this application;
[0019] Figure 5 This is a perspective view of the second embodiment of this application. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] The first embodiment of this application provides a safety line fixing device for high-altitude operations, such as... Figure 1 and Figure 2 As shown, the structure includes a support frame 1 and a C-shaped hook 2 welded and fixed to the support frame 1. The support frame 1 includes a first support plate 11 and a second support plate 12, and the two adjacent sides of the first support plate 11 and the second support plate 12 are fixedly connected by a connecting plate 13. A locking bolt 14 is threaded onto the first support plate 11, which cooperates with the second support plate 12 to clamp the steel structure flange plate 10.
[0022] The C-shaped hook 2 has an upper protrusion 21 and a lower protrusion 22 at its open end. The lower end of the locking member 3 is rotatably connected to the lower protrusion 22. When the locking member 3 rotates, the first plane on which it is located is perpendicular to the second plane on which the C-shaped hook 2 is located. Figure 3 As shown, the lower end of the locking member 3 is provided with a spring slot 31, and the lower protrusion 22 is provided with a spring fixing groove 23 at the position corresponding to the spring slot 31. The spring slot 31 and the spring fixing groove 23 form a space for accommodating the elastic element 4. The width direction of this space is parallel to the rotation axis of the locking member 3. The elastic element 4 is a plate spring, with one end placed in the spring slot 31 and the other end placed in the spring fixing groove 23. When the locking member 3 swings at a certain angle under the action of external force, the safety rope hook 30 can pass through the gap formed by the locking member 3 and the C-shaped hook 2. When the worker moves along the safety line, it is not necessary to untie the safety rope hook 30 from the safety line 20 and then reattach it, thereby improving work efficiency and reducing safety risks. When there is no external force, the elastic element 4 will cause the locking member 3 to contact the upper protrusion 21, forming a closed space supporting the safety line 20.
[0023] In the first embodiment of this application, the elastic element 4 may also be a torsion spring or a rubber sleeve, etc., and different connection structures are provided on the locking member 3 and the lower protrusion 22 according to the different spring structures.
[0024] In the first embodiment of this application, the C-shaped hook 2 and the support frame 1 can also be connected in a movable manner, such as a threaded connection or a rotating connection.
[0025] As a further improvement to the first embodiment of this application, such as Figure 4 As shown, a locking groove 34 can also be provided at the position where the locking member 3 contacts the upper protrusion 21. When the locking member 3 contacts the upper protrusion 21, the upper protrusion 21 is inserted into the locking groove 34. This can improve the stress state of the locking member 3, making the locking of the C-shaped hook 2 more reliable and better supporting the safety line 20.
[0026] Figure 5 The second embodiment of this application is shown. The support frame 1 includes two C-shaped connecting plates 13 arranged opposite each other. The first support plate 11 and the second support plate 12 are both rigidly supported between the two adjacent sides of the two connecting plates 11. Two locking bolts 14 are provided on the first support plate 11, which can further improve the firmness of the connection between the support frame 1 and the steel structure flange plate 10.
[0027] The C-shaped hook 2 is rotatably connected to the first support plate 11. The locking element 3 includes a guide rod 32 and a locking top block 33 disposed at one end of the guide rod 32. The lower protrusion 22 has a through hole 24 along its length, through which the guide rod 32 passes. The locking top block 33 contacts the upper protrusion 21. An elastic element 4 is sleeved on the guide rod 32, with one end connected to the lower protrusion 22 and the other end connected to the locking top block 33. The elastic element 4 can be a helical spring or a rubber sleeve. Under external force, the locking element 3 can slide along the through hole away from the upper protrusion 21, forming a notch between the locking top block 33 and the upper protrusion 21 that allows the safety rope hook 30 to pass through. When the external force disappears, the elastic element 4 can restore the locking top block 33 to its state of contact with the upper protrusion 21. In this way, workers do not need to unfasten and reattach the safety rope hook 30 from the safety line 20 when moving along the safety line.
[0028] As a further improvement to the second embodiment, such as Figure 5 As shown, a locking groove 35 is provided at the contact point between the locking top block 33 and the upper protrusion 21, which allows the upper protrusion 21 to be inserted, thereby improving the stress state of the locking member 3 when supporting the safety line.
[0029] As a further improvement to the second embodiment, such as Figure 5 As shown, a locking nut 15 is fitted on the locking bolt 14 to prevent the locking bolt 14 from loosening due to vibration or other reasons during use, which would cause the support frame 1 to detach from the steel structure flange plate 10.
[0030] As a further improvement to the second embodiment, such as Figure 5 As shown, the support frame 1 may also include a support column 5, one end of which is connected to the first support plate 11 and the other end is connected to the C-shaped hook 2, which can meet the needs of using safety lines at different heights.
[0031] It is understood that the improvements to the second embodiment described above can all be applied to the first embodiment, and the features of the second embodiment can also be interchanged with the features of the first embodiment.
[0032] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0033] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0034] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.
Claims
1. A safety line fixing device for high-altitude operations, characterized in that, include: The support frame includes a first support plate and a second support plate arranged in parallel, and a connecting plate arranged perpendicular to the first support plate and the second support plate. The connecting plate is connected to the first support plate and the second support plate respectively and forms a cavity that can accommodate the steel structure flange plate. At least one locking bolt for clamping the steel structure flange plate to the second support plate is threaded on the first support plate. The C-shaped hook has an upper protrusion and a lower protrusion at the open end. The C-shaped hook is connected to the first support plate. A locking member is movably connected to the lower protrusion. The locking member can contact or move away from the upper protrusion. The C-shaped hook also includes an elastic element that keeps the locking member in contact with the upper protrusion.
2. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The lower end of the locking member is rotatably connected to the lower protrusion. When the locking member rotates, the first plane is perpendicular to the second plane where the C-shaped hook is located. The lower end of the locking member is provided with a spring slot. The lower protrusion is provided with a spring fixing groove at the position corresponding to the spring slot. The spring slot and the spring fixing groove form a space for accommodating the elastic element. The width direction of the space is parallel to the second plane. The elastic element is a leaf spring. One end of the elastic element is placed in the spring slot, and the other end is placed in the spring fixing groove.
3. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The locking element includes a guide rod and a locking top block disposed at one end of the guide rod. The lower protrusion has a through hole along its length, the guide rod passes through the through hole, the locking top block contacts the upper protrusion, and the elastic element is sleeved on the guide rod. One end of the elastic element abuts against the lower protrusion, and the other end abuts against the locking top block.
4. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The two adjacent sides of the first support plate and the second support plate are fixedly connected by a connecting plate.
5. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The support frame includes two C-shaped connecting plates arranged opposite each other, with the first support plate and the second support plate rigidly supported between two adjacent sides of the two connecting plates.
6. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The C-shaped hook is welded and fixed to the support frame.
7. The safety line fixing device for high-altitude operations according to claim 1, characterized in that: The C-shaped hook is detachably connected to the support frame.
8. The safety line fixing device for high-altitude operations according to any one of claims 1 to 7, characterized in that: The locking member has a locking groove at the contact point with the upper protrusion, into which the upper protrusion can be inserted.
9. The safety line fixing device for high-altitude operations according to claim 8, characterized in that: A locking nut is fitted onto the locking bolt.
10. The safety line fixing device for high-altitude operations according to claim 8, characterized in that: The support frame is also provided with a support column, one end of which is connected to the first support plate and the other end is connected to the C-shaped hook.