Scaffold connecting fastener structure with anti-falling locking function
By integrating rubber pads and friction pads into the scaffolding connection couplers, and combining them with limit grooves, limit blocks, and liquid damping design, the problem of coupler slippage and loosening is solved, achieving higher anti-slip force and structural stability, and improving safety and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-07
AI Technical Summary
Existing scaffolding connecting fasteners are prone to slipping and loosening due to impact during use, leading to safety hazards and insufficient overall safety performance.
Rubber pads and friction pads are integrated into the fastener structure to increase the contact friction with the outer wall of the scaffold. The movement trajectory of the support back plate is controlled by the limit groove and limit block. Combined with the buffer design of liquid damping and spring, the anti-slip force and stability are enhanced.
It effectively prevents fastener slippage, extends service life, improves safety and durability, reduces wear risk, and ensures the long-term stability and safety of the structure.
Smart Images
Figure CN224092959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scaffolding connection fasteners, and in particular to a scaffolding connection fastener structure with anti-fall locking function. Background Technology
[0002] Scaffolding connecting couplers are key components used to fix and connect scaffolding steel pipes. They mechanically fasten the uprights, horizontal bars, diagonal bars, and other steel pipes together to form a rigid frame, ensuring the stability, load-bearing capacity, and safety of the scaffolding structure. They are widely used in construction, bridge, stage construction, and other projects.
[0003] Existing scaffolding connection couplers rely solely on two sets of clamps engaging in opposite directions to secure the scaffolding steel pipes. However, scaffolding is susceptible to accidental impacts during actual use, causing the steel pipes, which are only secured by two sets of clamps and bolts, to slip and loosen over time. This slippage of the clamps can create safety hazards, and the overall safety performance needs to be improved.
[0004] Therefore, in response to the problem that scaffolding connecting fasteners are prone to slippage and loosening over time, and the overall safety performance needs to be strengthened, this utility model integrates rubber pads and friction pads into the fastener structure. By making full use of the rubber pads and friction pads, the contact friction between the fastener and the outer wall of the scaffolding is increased. The design of the friction pads and rubber pads not only provides stronger anti-slip force during the fastener installation process, but also prevents the fastener from slipping due to vibration or external force. Utility Model Content
[0005] To overcome the common problem that scaffolding connection couplers are prone to slippage and loosening over time, and the overall safety performance needs to be improved.
[0006] The technical solution of this utility model is: a scaffolding connecting fastener structure with anti-fall locking function, including a main clamp body and a secondary clamp body. The main clamp body and the secondary clamp body are provided in two sets. The first set of main clamp bodies is rotatably installed on the side of the second set of main clamp bodies through a connector. The single set of main clamp bodies is rotatably installed on the side of the secondary clamp body through a connector. There is a columnar clamping area between the main clamp body and the secondary clamp body.
[0007] Both the main clamp body and the secondary clamp body are equipped with an abutment limiting component inside, and the outer sides of the main clamp body and the secondary clamp body are connected with a reinforcement anti-fall component.
[0008] Preferably, the abutment limiting assembly includes a limiting cylinder, a limiting piston rod, an abutment spring, and a friction pad. A placement groove is formed on the inner side wall of the secondary clamp body at its middle section. The limiting cylinder is embedded in the inner side wall of the secondary clamp body at the placement groove. The limiting piston rod is slidably installed inside the limiting cylinder. An abutment spring is connected between the outer side wall of the limiting piston rod and the inner bottom wall of the limiting cylinder. The protruding end of the limiting piston rod is located outside the limiting cylinder and is connected to the outer side wall of the supporting back plate. The supporting back plate is slidably installed inside the placement groove, and a friction pad is fixedly installed on the outer side wall of the supporting back plate away from the limiting piston rod.
[0009] Preferably, the outer walls on both sides of the support back plate are symmetrically provided with limiting blocks, and the interior of the secondary clamp body is provided with a limiting groove for sliding installation of the limiting blocks, and the limiting groove is connected to the interior space of the placement groove.
[0010] Preferably, the limiting cylinder is filled with damping fluid, and an overflow groove is circumferentially opened on the outer wall of the side of the limiting piston rod located at the piston disc position.
[0011] Preferably, the reinforced fall arrestor assembly includes a first clamp, a second clamp, and a rubber pad. The first clamp is fixedly installed on the top and bottom outer walls of the main clamp body. The second clamp is fitted to the side outer walls of both sets of the first clamps. The two sets of the second clamps are respectively fitted to the top and bottom surfaces of the secondary clamp body. The first clamp and the second clamp are both configured as an "Ω" structure. The rubber pad is fixedly installed on the side inner walls of both the first clamp and the second clamp.
[0012] Preferably, the second clamp has symmetrically arranged abutment blocks on its outer side wall, and the first clamp has correspondingly opened abutment slot for the abutment blocks to be engaged and installed on its outer side wall.
[0013] Preferably, the outer walls of the first clamp and the second clamp are symmetrically provided with cylindrical through grooves, the cylindrical through groove of the second clamp is installed with a fastening bolt, and the outer wall of the first clamp located at the cylindrical through groove is fitted with a nut block, which is installed outside the fastening bolt.
[0014] The beneficial effects of this utility model are:
[0015] 1. This scaffolding connection coupler structure with fall arrest function integrates rubber pads and friction pads into the coupler structure to increase the contact friction between the coupler and the outer wall of the scaffolding. The design of the friction pads and rubber pads not only provides stronger anti-slip force during coupler installation, but also prevents the coupler from slipping due to vibration or external force. In long-term use, it effectively reduces the wear of the coupler caused by friction, extends the service life of the coupler, and also plays a role in preventing falls. In addition, the elasticity of the rubber pads can also provide a certain cushioning effect, further improving the convenience of coupler assembly and disassembly. Finally, through the cushioning design of liquid damping and spring reaction, the service life of the coupler is effectively extended and the long-term safety of the structure is guaranteed.
[0016] 2. The scaffolding connection fastener structure with anti-fall locking function precisely controls the movement trajectory of the support back plate during use by utilizing limit grooves and limit blocks, avoiding unstable sliding of the support back plate and further improving the reliability of the fastener. At the same time, the use of rubber pads enhances the contact friction between the device and the scaffolding, ensuring the fastener's stability while reducing the risk of wear caused by frequent installation and disassembly, thus improving the overall safety and durability of the scaffolding. Attached Figure Description
[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.
[0018] Figure 2 The diagram shown is a three-dimensional structural diagram of the main clamp body and the secondary clamp body of this utility model.
[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the secondary clamp body of this utility model;
[0020] Figure 4 This utility model is shown. Figure 3 Enlarged 3D structural diagram at point A;
[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the installation of the first and second clamps of this utility model.
[0022] Figure 6 This utility model is shown. Figure 5 Enlarged 3D structural diagram at point B.
[0023] Explanation of reference numerals in the attached drawings: 1. Main clamp body; 2. Secondary clamp body; 3. Abutment limiting component; 301. Placement groove; 302. Limiting cylinder; 303. Limiting piston rod; 304. Abutment spring; 305. Support back plate; 306. Friction pad; 307. Limiting block; 308. Limiting groove; 4. Reinforced anti-fall component; 401. First clamp; 402. Second clamp; 403. Rubber pad; 404. Abutment block; 405. Abutment groove; 406. Cylindrical through groove; 407. Fastening bolt; 408. Nut block. 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 1-6 This utility model provides a technical solution: a scaffolding connecting fastener structure with anti-fall locking function, including a main clamp body 1 and a secondary clamp body 2. The main clamp body 1 and the secondary clamp body 2 are provided in two sets. The first set of main clamp bodies 1 is rotatably installed on the side of the second set of main clamp bodies 1 through a connector. A single set of main clamp bodies 1 is rotatably installed on the side of the secondary clamp body 2 through a connector. There is a columnar clamping area between the main clamp body 1 and the secondary clamp body 2.
[0026] Both the main clamp body 1 and the secondary clamp body 2 are equipped with an abutment limiting component 3 inside, and the main clamp body 1 and the secondary clamp body 2 are connected with a reinforcement anti-fall component 4 on their outer sides.
[0027] The contact limiting assembly 3 includes a limiting cylinder 302, a limiting piston rod 303, a contact spring 304, and a friction pad 306. A placement groove 301 is formed on the inner side wall of the secondary clamp body 2 at its middle section. The limiting cylinder 302 is embedded in the inner side wall of the secondary clamp body 2 at the placement groove 301. The limiting piston rod 303 is slidably installed inside the limiting cylinder 302. A contact spring 304 is connected between the outer side wall of the limiting piston rod 303 and the inner bottom wall of the limiting cylinder 302. The protruding end of the limiting piston rod 303 is located outside the limiting cylinder 302. The support back plate 305 is connected to the side outer wall of the support back plate 305. The support back plate 305 is slidably installed inside the placement groove 301. A friction pad 306 is fixedly installed on the side outer wall of the support back plate 305 away from the position of the limiting piston rod 303. Limiting blocks 307 are symmetrically arranged on both sides of the outer wall of the support back plate 305. The inner wall of the secondary clamp body 2 is correspondingly provided with a limiting groove 308 for the sliding installation of the limiting block 307. The limiting groove 308 is connected to the inner space of the placement groove 301. The inner wall of the limiting cylinder 302 is filled with damping fluid. An overflow groove is circumferentially opened on the side outer wall of the limiting piston rod 303 located at the position of the piston disc.
[0028] The limiting block 307 and limiting groove 308 here have the effect of limiting and supporting the movement of the support back plate 305, so that no matter how it is displaced, part of the block will slide and be installed inside the placement groove 301. This prevents the support back plate 305 from slipping out of the placement groove 301 and being difficult to reset. The limiting cylinder 302 is filled with damping fluid and has an overflow groove. The incompressibility of the liquid has a slowing and buffering effect on the movement of the limiting piston rod 303, effectively extending the overall sustainable use of the device.
[0029] The reinforced fall arrestor assembly 4 includes a first clamp 401, a second clamp 402, and a rubber pad 403. The first clamp 401 is fixedly installed on the top and bottom outer walls of the main clamp body 1. The second clamp 402 is fitted to the side outer walls of both sets of first clamps 401. The two sets of second clamps 402 are respectively fitted to the top and bottom surfaces of the secondary clamp body 2. Both the first clamp 401 and the second clamp 402 are configured with an "Ω" structure. Rubber pads 403 are fixedly installed on the inner side walls of both the first clamp 401 and the second clamp 402. The outer side wall of the clamp 402 is symmetrically provided with abutment blocks 404. The outer side wall of the first clamp 401 is correspondingly provided with abutment grooves 405 for the abutment blocks 404 to be engaged and installed. The outer side walls of the first clamp 401 and the second clamp 402 are symmetrically provided with cylindrical through grooves 406. The cylindrical through grooves 406 of the second clamp 402 are installed with fastening bolts 407. The outer side wall of the first clamp 401 located at the cylindrical through grooves 406 is fitted with a nut block 408, and the nut block 408 is installed outside the fastening bolts 407.
[0030] Here, the first clamp 401 and the second clamp 402 are set to different installation methods. The first clamp 401 is fixedly installed on the outer surface of the main clamp body 1 and can rotate synchronously with the rotation of the main clamp body 1. The second clamp 402 is set to be movable and detachable assembly. This design can ensure the stable docking and rotation of the main clamp body 1 and the secondary clamp body 2, as well as the tight docking of the first clamp 401 and the second clamp 402, and the movement stroke will not interfere with or obstruct each other.
[0031] Working principle: See Figures 1-2 As shown, the specific connection and locking method of the main clamp body 1 and the secondary clamp body 2 can be referred to the existing scaffolding fastener connection structure. No improvements have been made to it, and it belongs to the existing conventional operating technology structure, so it will not be described in detail here.
[0032] See Figures 1-4 As shown, when the user connects and snaps the main clamp body 1 and the secondary clamp body 2 to the outside of the scaffold pole using existing operating techniques, the support distance between the main clamp body 1 and the secondary clamp body 2 gradually closes and compresses the placement area of the friction pad 306 as the outer bolt assembly is tightened. Consequently, the friction pad 306, under the spatial compression of the main clamp body 1 and the secondary clamp body 2, automatically drives the support back plate 305 to contract towards the inside of the placement groove 301. The movement of the support back plate 305 automatically drives the limiting block 307 to slide within the limiting groove 308, thus limiting and supporting the movement trajectory of the support back plate 305. When the support back plate 305 moves, it also automatically drives the limiting piston rod 303 to move synchronously within the limiting cylinder 302. As the piston rod 303 moves along its trajectory, the damping fluid on one side of the piston disc is squeezed through multiple overflow grooves to the other side of the piston disc. This process slows down and buffers the movement of the piston rod 303. At this time, the contact spring 304 is in a contracted state due to the squeezing action of the piston rod 303. Simultaneously, the squeezed contact spring 304 generates a reaction force and pushes the piston rod 303 to move in the opposite direction. The reverse movement of the piston rod 303 will automatically push the support back plate 305 to move and push the friction pad 306 to make tight contact with the side outer wall of the scaffold. Thus, the friction pad 306, which has been subjected to force, provides contact support to the side outer wall of the scaffold, effectively strengthening the installation tightness of the main clamp body 1 and the secondary clamp body 2.
[0033] See Figures 5-6As shown, after the main clamp body 1 and the secondary clamp body 2 are installed securely, the first clamp 401 is installed in the designated position. Then, the second clamp 402 is adjusted to a suitable position and its side contact block 404 is engaged with the corresponding contact groove 405. When the contact block 404 moves to the bottom of the contact groove 405, the outer side walls of the first clamp 401 and the second clamp 402 are completely in contact and the installation height is the same. Then, the fastening bolt 407 is passed through the two sets of cylindrical through slots 406 and the nut block 408 is screwed to the outside of the fastening bolt 407 to complete the fastening installation of the first clamp 401 and the second clamp 402. At the same time, as the first clamp 401 and the second clamp 402 are fastened, the rubber pad 403 is compressed and deformed accordingly, which strengthens the contact friction between the whole device and the outer wall of the scaffold, thereby achieving the effect of reinforcement and stable support, and further achieving the effect of anti-fall on the basis of the overall stable positioning of the device.
[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A scaffolding connection fastener structure with fall protection locking function, comprising a main clamp body (1) and a secondary clamp body (2), characterized in that: The main clamp body (1) and the secondary clamp body (2) are provided in two sets. The first set of the main clamp body (1) is rotatably installed on the side of the second set of the main clamp body (1) through the connector. The single set of the main clamp body (1) is rotatably installed on the side of the secondary clamp body (2) through the connector. There is a columnar clamping area between the main clamp body (1) and the secondary clamp body (2). The main clamp body (1) and the secondary clamp body (2) are both provided with abutment limiting components (3), and the main clamp body (1) and the secondary clamp body (2) are connected with reinforced anti-fall components (4) on their outer sides.
2. The scaffolding connection fastener structure with fall protection locking function according to claim 1, characterized in that: The contact limiting assembly (3) includes a limiting cylinder (302), a limiting piston rod (303), a contact spring (304), and a friction pad (306). The secondary clamp body (2) has a placement groove (301) on its inner side wall at the middle section. The limiting cylinder (302) is embedded in the inner side wall of the secondary clamp body (2) at the placement groove (301). The limiting piston rod (303) is slidably installed inside the limiting cylinder (302). The limiting piston rod (303) has... An abutment spring (304) is connected between the outer side wall and the inner wall of the bottom of the limiting cylinder (302). The protruding end of the limiting piston rod (303) is located outside the limiting cylinder (302), and the protruding end of the limiting piston rod (303) is connected to the outer side wall of the support back plate (305). The support back plate (305) is slidably installed inside the placement groove (301), and a friction pad (306) is fixedly installed on the outer side wall of the support back plate (305) away from the limiting piston rod (303).
3. The scaffolding connection fastener structure with fall protection locking function according to claim 2, characterized in that: The outer walls of the support back plate (305) are symmetrically provided with limiting blocks (307), and the interior of the secondary clamp body (2) is provided with a limiting groove (308) for the limiting block (307) to slide and install, and the limiting groove (308) communicates with the interior space of the placement groove (301).
4. The scaffolding connection fastener structure with fall protection locking function according to claim 2, characterized in that: The limiting cylinder (302) is filled with damping fluid, and the limiting piston rod (303) has an overflow groove circumferentially opened on the outer side wall of the piston disc.
5. The scaffolding connection fastener structure with fall protection locking function according to claim 1, characterized in that: The reinforced fall arrestor assembly (4) includes a first clamp (401), a second clamp (402), and a rubber pad (403). The top and bottom outer walls of the main clamp body (1) are fixedly installed with the first clamp (401). The side outer walls of the two sets of first clamps (401) are fitted with the second clamps (402). The two sets of second clamps (402) are respectively fitted with the top and bottom surfaces of the secondary clamp body (2). The first clamp (401) and the second clamp (402) are both set as "Ω" structures. The side inner walls of the first clamp (401) and the second clamp (402) are fixedly installed with the rubber pad (403).
6. The scaffolding connection fastener structure with fall protection locking function according to claim 5, characterized in that: The second clamp (402) has symmetrically arranged abutment blocks (404) on its outer side wall, and the first clamp (401) has correspondingly opened abutment slot (405) for the abutment blocks (404) to be engaged and installed on its outer side wall.
7. The scaffolding connection fastener structure with fall protection locking function according to claim 5, characterized in that: The first clamp (401) and the second clamp (402) have symmetrical through-grooves (406) on both sides of their outer walls. The second clamp (402) has a fastening bolt (407) installed in the through-grooves (406). The first clamp (401) has a nut block (408) installed on the outer side of its side at the position of the through-grooves (406), and the nut block (408) is installed outside the fastening bolt (407).