Building civil engineering protection frame
By installing anti-loosening components on the uprights, and utilizing the combination of limiting pressure rings and springs, the problem of loose pins was solved, thus improving the stability and construction safety of the disc-lock scaffolding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
In actual use, the pins of the disc-lock scaffold may loosen due to improper installation or vibration, leading to safety hazards.
An anti-loosening component is installed on the upright, including a limiting unit and a reset unit. The top of the wedge-shaped pin is pressed and limited by the downward movement of the limiting pressure ring to ensure the stability of the pin, and the upward reset force is provided by the spring.
This improves the stability of the wedge-shaped pins, prevents loosening due to vibration, ensures the overall structural stability, and allows for the timely detection of pins that are not properly installed, thus ensuring construction safety.
Smart Images

Figure CN224149144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective frame technology, specifically a building civil engineering protective frame. Background Technology
[0002] Construction safety scaffolding is an important temporary facility used in construction to ensure construction safety and prevent people and objects from falling. It is usually constructed from materials such as steel pipes, fasteners, scaffold boards, and safety nets. It is mainly used in the construction, decoration, or maintenance of the main building structure. The main types of safety scaffolding include external scaffolding, cantilever scaffolding, climbing scaffolding, full-span scaffolding, and protective sheds.
[0003] Disc-lock scaffolding is a commonly used type of external scaffolding in construction. It consists of uprights, horizontal bars (or crossbars), diagonal braces, connecting discs, and wedge pins. A connecting disc is welded to each upright every 0.5 or 0.6 meters. Each disc has eight wedge-shaped holes around its perimeter for connecting the horizontal and diagonal bars. The horizontal bars (or crossbars) are connected to the upright discs via wedge pins, forming a horizontal frame and enhancing overall stability. The diagonal braces use specially designed diagonal tie rods connected to the uprights via pins, forming a triangular stable structure that significantly improves resistance to lateral displacement.
[0004] The pins of disc-lock scaffolding should have a self-locking function under design and specification requirements, and theoretically should not be easy to loosen. However, in actual use, loosening may still occur, such as: improper installation, failure to use a rubber hammer to knock the pin into place, resulting in the wedge surface not being fully embedded in the connecting disc groove; vibration of the scaffolding (such as nearby mechanical construction, wind load) causing the pins to gradually shift. Loose pins will create safety hazards. Based on this, a building civil engineering protective frame is provided. Utility Model Content
[0005] The purpose of this utility model is to provide a building civil engineering protective frame in order to solve the problems mentioned above.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a building civil engineering protective frame, comprising a pole assembly consisting of a pole and a connecting disc, wherein the connecting disc is fixed to the outside of the pole, and an anti-loosening component is provided on the outside of the pole above the connecting disc, the anti-loosening component being used to limit and tighten the top of the installed wedge-shaped pin.
[0007] The anti-loosening component includes a limiting unit and a reset unit;
[0008] The upward movement of the limiting unit does not affect the installation of the wedge pin, and the downward movement of the limiting unit is used to limit and press the top of the wedge pin.
[0009] The reset unit is used to provide an upward reset force for the limiting unit that has been released from its limiting state.
[0010] As a further embodiment of this utility model: the limiting unit includes a fixed cylinder, an external thread, a polygonal screw cylinder, and a limiting pressure ring;
[0011] The fixing cylinder is fixed to the outside of the upright and distributed above the connecting disc, and the external thread is formed on the bottom of the outside of the fixing cylinder;
[0012] The polygonal screw cylinder is sleeved on the outside of the fixed cylinder, and the limiting pressure ring is fixed to the bottom of the polygonal screw cylinder. When the polygonal screw cylinder and the limiting pressure ring are far away from the connecting disc, they do not affect the installation of the wedge pin. When the polygonal screw cylinder moves down and is tightened with the external thread, the limiting pressure ring is used to press and limit the top of the installed wedge pin.
[0013] As a further improvement of this utility model: the reset unit includes a fixed bottom ring, an L-shaped ring groove, and a spring;
[0014] The fixed bottom ring is fixed to the bottom of the fixed cylinder, and the L-shaped annular groove is formed on the inner side of the polygonal screw cylinder and extends to the bottom of the polygonal screw cylinder.
[0015] The springs are distributed inside the L-shaped annular groove, and the upper and lower ends of the springs are welded and fixed to the top of the inner wall of the L-shaped annular groove and the upper surface of the fixed bottom ring, respectively. The springs are used to provide an upward thrust for the polygonal screw cylinder.
[0016] As a further embodiment of this utility model: the outer diameter of the L-shaped annular groove matches the inner diameter of the limiting pressure ring and is greater than the outer diameter of the fixed bottom ring; when the polygonal screw cylinder is tightened with the external threaded connection, the bottom horizontal height of the limiting pressure ring is lower than the bottom horizontal height of the fixed bottom ring.
[0017] As a further improvement of this utility model, multiple sets of the connecting disc and anti-loosening component are evenly arranged along the vertical direction of the upright.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] By setting anti-loosening components and using the downward movement of the limiting pressure ring to press and limit the wedge pins, the stability of the wedge pins can be further improved, preventing the pins from gradually shifting due to vibration of the frame. At the same time, if any wedge pins are not installed in place, the limiting pressure ring will not be able to move down to the set height. This allows installers to identify if any wedge pins are not installed in place, making it easier to promptly re-knock the missing wedge pins into place and ensuring the stability of the overall structure. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0022] Figure 3 This is a cross-sectional exploded view of the present invention.
[0023] In the diagram: 1. Upright assembly; 101. Upright; 102. Connecting disc; 2. Anti-loosening assembly; 201. Fixing cylinder; 202. External thread; 203. Fixing bottom ring; 204. Polygonal screw cylinder; 205. Limiting pressure ring; 206. L-shaped ring groove; 207. Spring. Detailed Implementation
[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-3 In this embodiment of the utility model, a building civil engineering protective frame includes a pole assembly 1 consisting of a pole 101 and a connecting disc 102. The connecting disc 102 is fixed to the outside of the pole 101. An anti-loosening component 2 is provided on the outside of the pole 101 above the connecting disc 102. The anti-loosening component 2 is used to limit and tighten the top of the installed wedge-shaped pin. Multiple sets of the connecting disc 102 and the anti-loosening component 2 are evenly arranged along the vertical direction of the pole 101.
[0026] The anti-loosening component 2 includes a limiting unit and a reset unit. The upward movement of the limiting unit does not affect the installation of the wedge pin. After the limiting unit moves downward, it is used to limit and press the top of the wedge pin. The reset unit is used to provide an upward reset force for the limiting unit when it is released from the limiting state.
[0027] The limiting unit includes a fixed cylinder 201, an external thread 202, a polygonal screw cylinder 204, and a limiting pressure ring 205;
[0028] The fixing cylinder 201 is fixed to the outside of the upright 101 and distributed above the connecting disc 102, and the external thread 202 is formed on the bottom of the outside of the fixing cylinder 201;
[0029] The polygonal screw cylinder 204 is sleeved on the outside of the fixed cylinder 201, and the limiting pressure ring 205 is fixed to the bottom of the polygonal screw cylinder 204. When the polygonal screw cylinder 204 and the limiting pressure ring 205 are far away from the connecting disc 102, it does not affect the installation of the wedge pin. When the polygonal screw cylinder 204 moves down and is screwed into the external thread 202, the limiting pressure ring 205 is used to press and limit the top of the installed wedge pin.
[0030] The reset unit includes a fixed bottom ring 203, an L-shaped annular groove 206, and a spring 207;
[0031] The fixing bottom ring 203 is fixed to the bottom of the fixing cylinder 201, and the L-shaped annular groove 206 is formed on the inner side of the polygonal screw cylinder 204 and extends to the bottom of the polygonal screw cylinder 204.
[0032] Springs 207 are distributed inside the L-shaped annular groove 206, and the upper and lower ends of springs 207 are welded and fixed to the top of the inner wall of the L-shaped annular groove 206 and the upper surface of the fixed bottom ring 203, respectively. Springs 207 are used to provide upward thrust for the polygonal screw barrel 204.
[0033] In this embodiment, it should be noted that the connecting disc 102 has 8 wedge-shaped holes around its perimeter for the wedge-shaped pins of the horizontal and diagonal bars to be inserted. Its connection structure and principle are exactly the same as those of the existing disc-lock scaffolding. Therefore, the specific structural forms of the horizontal bars, diagonal bars and wedge-shaped pins will not be described in detail here.
[0034] In its normal state, the polygonal screw cylinder 204 is close to the top of the fixed cylinder 201 under the elastic force of the spring 207. At this time, the limiting pressure ring 205 is away from the connecting disc 102, and the distance between the limiting pressure ring 205 and the connecting disc 102 is greater than the height of the wedge pin. Therefore, when the horizontal bar (or diagonal bar) is connected to the connecting disc 102, the limiting pressure ring 205 will not affect the installation of the wedge pin.
[0035] After the horizontal bar and diagonal bar corresponding to the single connecting disc 102 are installed, the polygonal screw cylinder 204 and the limiting pressure ring 205 can be moved down as a whole, so that the internal thread of the polygonal screw cylinder 204 contacts the external thread 202. At this time, the polygonal screw cylinder 204 is screwed down with a tool to tighten the threaded connection between the polygonal screw cylinder 204 and the external thread 202. Its spring 207 is further compressed under force. At the same time, the limiting pressure ring 205 moves down through the position height of the fixed bottom ring 203 and finally contacts the top of the installed wedge pin, realizing the pressing and limiting of the wedge pin. In this way, the stability of the wedge pin can be further improved, and the pin can be prevented from gradually shifting due to the vibration of the frame.
[0036] In addition, if any wedge pin is not installed in place, the limit ring 205 will not be able to move down to the set height. This allows the installer to determine that a wedge pin is not installed in place, so that the missing wedge pin can be re-knocked into place in time. After that, the polygonal screw 204 is tightened to ensure the stability of the overall structure.
[0037] Please refer to this carefully. Figures 2-3 The outer diameter of the L-shaped annular groove 206 matches the inner diameter of the limiting pressure ring 205 and is larger than the outer diameter of the fixed bottom ring 203. When the polygonal screw barrel 204 is screwed tightly into the external thread 202, the bottom horizontal height of the limiting pressure ring 205 is lower than the bottom horizontal height of the fixed bottom ring 203.
[0038] In this embodiment: This structure allows the fixed bottom ring 203 to be positioned away from the connecting disc 102, so as not to affect the installation operation of the wedge pin.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A construction civil engineering protection frame comprising a vertical rod assembly (1) consisting of a vertical rod (101) and a connecting disc (102) fixed to the outer side of the vertical rod (101), characterized in that, An anti-loosening component (2) is provided on the outer side of the upright (101) above the connecting disc (102). The anti-loosening component (2) is used to limit and tighten the top of the installed wedge pin. The anti-loosening component (2) includes a limiting unit and a reset unit; The upward movement of the limiting unit does not affect the installation of the wedge pin, and the downward movement of the limiting unit is used to limit and press the top of the wedge pin. The reset unit is used to provide an upward reset force for the limiting unit that has been released from its limiting state.
2. The construction protection frame according to claim 1, wherein The limiting unit includes a fixed cylinder (201), an external thread (202), a polygonal screw cylinder (204), and a limiting pressure ring (205); The fixing cylinder (201) is fixed to the outside of the upright (101) and distributed above the connecting disc (102), and the external thread (202) is formed on the bottom of the outside of the fixing cylinder (201); The polygonal screw cylinder (204) is sleeved on the outside of the fixed cylinder (201), and the limiting pressure ring (205) is fixed to the bottom of the polygonal screw cylinder (204). When the polygonal screw cylinder (204) and the limiting pressure ring (205) are far away from the connecting disc (102), they do not affect the installation of the wedge pin. When the polygonal screw cylinder (204) moves down and is screwed into the external thread (202), the limiting pressure ring (205) is used to press and limit the top of the installed wedge pin.
3. A construction scaffolding frame according to claim 2, wherein The reset unit includes a fixed bottom ring (203), an L-shaped annular groove (206), and a spring (207); The fixed bottom ring (203) is fixed to the bottom of the fixed cylinder (201), and the L-shaped annular groove (206) is formed on the inner side of the polygonal screw cylinder (204) and extends to the bottom of the polygonal screw cylinder (204); The springs (207) are distributed inside the L-shaped annular groove (206), and the upper and lower ends of the springs (207) are welded and fixed to the top of the inner wall of the L-shaped annular groove (206) and the upper surface of the fixed bottom ring (203), respectively. The springs (207) are used to provide upward thrust for the polygonal screw cylinder (204).
4. A construction scaffolding frame according to claim 3, wherein The outer diameter of the L-shaped annular groove (206) matches the inner diameter of the limiting pressure ring (205) and is larger than the outer diameter of the fixed bottom ring (203). When the polygonal screw cylinder (204) is screwed tightly into the external thread (202), the bottom horizontal height of the limiting pressure ring (205) is lower than the bottom horizontal height of the fixed bottom ring (203).
5. The construction protection frame according to claim 1, wherein The connecting disc (102) and the anti-loosening component (2) are evenly arranged in multiple sets along the vertical direction of the upright (101).