A scaffold fitting clamping device
By using a rotary telescopic and adaptive pipe diameter mechanism, the length and clamping diameter of the scaffolding fastening device can be flexibly adjusted, overcoming the limitations of fixed length and pipe diameter in existing technologies and improving the stability and applicability of the connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO KEMAO CONSTRUCTION CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-24
AI Technical Summary
The existing scaffolding fastening device has a fixed length and cannot be adjusted according to the distance between scaffolding sections and the pipe diameter, which limits its applicability in different connection scenarios.
The system employs a rotary telescopic mechanism and an adaptive pipe diameter mechanism. By coordinating the rotating screw and the pipe clamping screw, the spacing between the fastening rings and the clamping diameter can be flexibly adjusted. The length and clamping diameter of the fastening device can be adjusted to adapt to scaffolding with different spacing and pipe diameters through the rotary telescopic mechanism and the adaptive pipe diameter mechanism, respectively.
It enables flexible adjustment of the length and clamping diameter of the fastening device, adapting to scaffolding with different spacing and pipe diameters, improving the stability and applicability of the connection, and solving the limitations of fixed length and pipe diameter in the existing technology.
Smart Images

Figure CN224549610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of scaffolding accessory fastening device, and more particularly to a scaffolding accessory fastening device. Background Technology
[0002] Scaffolding is a temporary work platform widely used in construction, decoration, and various high-altitude operations. It is mainly composed of a series of poles and accessories combined in a specific way to provide a safe standing space for construction workers and facilitate the transportation and stacking of materials. In various construction projects, scaffolding is an important facility to ensure the smooth progress of the project.
[0003] Traditional scaffolding fastening devices mainly consist of fastening rings and screws. In actual use, the operator places two fastening rings around the scaffolding poles that need to be connected, and then screws the screws into the pre-set screw holes on the two fastening rings to gradually tighten the fastening rings, thereby clamping the scaffolding poles and achieving connection and fixation. However, since the relative position and angle of the fastening rings are fixed and cannot be flexibly adjusted, the operation is extremely inconvenient when dealing with some scaffolding poles that need to be connected at a specific angle.
[0004] Existing technology has added a rotating structure to the fastening device. With this improvement, the two fastening rings can rotate relative to each other, so the angle can be flexibly adjusted according to actual needs, which greatly improves the applicability in different connection angle scenarios. However, in actual use, when using this improved fastening device to connect scaffolding members with different spacings, its length is fixed and cannot be changed according to the distance between the scaffolding members, which leads to limitations when dealing with scaffolding connections with different spacings. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a scaffolding accessory fastening device, which aims to improve the problem that the length is fixed in the prior art and cannot be changed according to the distance between scaffoldings.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a scaffolding accessory fastening device, including a fastening ring 1, a functional fastening ring 2 provided on the opposite side of the two fastening rings 1, a rotation and telescopic mechanism provided between the two adjacent fastening rings 1, an adaptive pipe diameter mechanism provided on the outer side of the two functional fastening rings 2, and a fastening mechanism provided between the multiple fastening rings 1 and the functional fastening rings 2;
[0007] The rotary telescopic mechanism includes two rotating screws. The two rotating screws are respectively fixedly connected to the outer side of the corresponding fastening ring on opposite sides. The outer walls of the two rotating screws are provided with threaded grooves. The outer walls of the two rotating screws are threaded with anti-loosening reverse thread nuts. The adjacent sides of the two rotating screws are threaded with the same threaded sleeve.
[0008] As a further description of the above technical solution:
[0009] The adaptive pipe diameter mechanism includes two pipe-pressing screws, the outer walls of which are threaded to the inner walls of the corresponding functional fastening rings. Adaptive flexible pressure plates are rotatably connected to adjacent sides of the two pipe-pressing screws. Two auxiliary tightening screws are threaded to the opposite sides of the multiple functional fastening rings, and the adjacent sides of the multiple auxiliary tightening screws are respectively in contact with the corresponding adaptive flexible pressure plates.
[0010] As a further description of the above technical solution:
[0011] The inner walls of the two fastening rings are fixedly connected with a scratch-resistant and wear-resistant layer, and the outer wall of the scratch-resistant and wear-resistant layer has the same area as the inner wall of the fastening ring.
[0012] As a further description of the above technical solution:
[0013] Two reinforcing ribs are fixedly connected to the upper and lower sides of the outer walls of the two fastening rings, and two reinforcing ribs are fixedly connected to the upper and lower sides of the outer walls of the two functional fastening rings.
[0014] As a further description of the above technical solution:
[0015] The fastening mechanism includes two connecting bolts, the outer walls of which are penetrated by the corresponding fastening ring one and functional fastening ring two. A washer is provided on an adjacent side of each of the two fastening rings one, and a connecting nut is threaded to an adjacent end of each of the two connecting bolts.
[0016] As a further description of the above technical solution:
[0017] Multiple anti-slip grooves are provided on the opposite side of each of the two adaptive flexible pressure plates, and the spacing between adjacent anti-slip grooves is equal.
[0018] As a further description of the above technical solution:
[0019] Each of the two adaptive flexible pressure plates is provided with an anti-slip pad on one adjacent side, and each of the two anti-slip pads is provided with multiple anti-slip holes on one adjacent side.
[0020] As a further description of the above technical solution:
[0021] The outer wall of the threaded sleeve is provided with multiple anti-slip patterns, which are arranged in a ring array with the center of the threaded sleeve as the center.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the scaffolding accessory fastening device effectively improves the problems of the prior art through the ingenious design of the rotary telescopic mechanism. In the rotary telescopic mechanism, two rotating screws are respectively fixedly connected to the outer side of the corresponding fastening ring. The threaded groove on its outer wall cooperates with the threaded sleeve. Rotating the threaded sleeve can make the two rotating screws move relative to each other, thereby changing the distance between the two fastening rings and realizing the flexible adjustment of the length of the fastening device. At the same time, the anti-loosening reverse thread nut can stabilize the relative position of the rotating screw and the threaded sleeve. This structure realizes the function of changing the length of the fastening device according to the distance between scaffoldings, solving the problem that the length of the fastening device is fixed in the prior art and cannot be adapted to scaffoldings with different spacing.
[0024] 2. In this utility model, the adaptive pipe diameter mechanism effectively solves the existing technical problems through a unique structural design. The outer walls of the two pipe-pressing screws are threadedly connected to the inner walls of the functional fastening rings. Rotating the pipe-pressing screws can push the adaptive flexible pressure plate to move radially. At the same time, the auxiliary tightening screw is threadedly connected to the functional fastening rings, and its end is in contact with the adaptive flexible pressure plate. Rotating the auxiliary tightening screw can further adjust the position of the pressure plate. Through the coordinated cooperation of the pipe-pressing screws, the auxiliary tightening screw, and the adaptive flexible pressure plate, the function of flexibly changing the clamping diameter according to the scaffold pipe diameter is realized. This improves the problem in the prior art that the clamping diameter cannot be adjusted according to the scaffold pipe diameter due to the fixed length, and enhances the adaptability of the fastening device to scaffolds with different pipe diameters. Attached Figure Description
[0025] Figure 1 This is a perspective view of a scaffolding accessory fastening device proposed in this utility model;
[0026] Figure 2 This is a front view of a scaffolding accessory fastening device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the rotating telescopic mechanism of a scaffolding accessory fastening device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of an adaptive pipe diameter mechanism for a scaffolding accessory fastening device proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the fastening mechanism of a scaffolding accessory fastening device proposed in this utility model.
[0030] Legend:
[0031] 1. Fastening ring one; 2. Rotary telescopic mechanism; 201. Rotating screw; 202. Anti-loosening reverse thread nut; 203. Threaded sleeve; 204. Threaded groove; 3. Adaptive pipe diameter mechanism; 301. Pipe clamping screw; 302. Auxiliary tightening screw; 303. Adaptive flexible pressure plate; 4. Functional fastening ring two; 5. Reinforcing rib one; 6. Scratch-resistant and wear-resistant layer; 7. Fastening mechanism; 701. Connecting bolt; 702. Washer; 703. Connecting nut; 8. Reinforcing rib two; 9. Anti-slip groove; 10. Anti-slip hole; 11. Anti-slip pad; 12. Anti-slip texture. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a scaffolding accessory fastening device, including fastening ring 1. Fastening ring 1 is the main component of the entire fastening device, used to directly contact the scaffolding accessory and provide initial fixed support. Functional fastening ring 2 4 is provided on the opposite sides of the two fastening rings 1. The functional fastening ring 2 4 further enhances the fastening effect on the scaffolding accessory and, in conjunction with other mechanisms, achieves more functions to adapt to different fastening requirements. A rotating telescopic mechanism 2 is provided between the two adjacent fastening rings 1. The rotating telescopic mechanism 2 can adjust the scaffolding accessory fastening effect according to the actual usage scenario. The distance between the frames can be flexibly adjusted to accommodate scaffolding accessories with different spacing. The outer sides of the two functional fastening rings are equipped with adaptive pipe diameter mechanisms 3. The adaptive pipe diameter mechanisms 3 can automatically adjust the fastening diameter according to the size of the pipe diameter of the scaffolding accessories, ensuring that scaffolding accessories with different pipe diameters can be securely fastened. A fastening mechanism 7 is provided between the multiple fastening rings 1 and the functional fastening rings 4. The fastening mechanism 7 is used to strengthen the connection between the fastening rings 1 and the functional fastening rings 4, ensuring the stability of the entire fastening device during use.
[0034] The rotary telescopic mechanism 2 includes two rotating screws 201. The rotating screws 201 are key transmission components of the rotary telescopic mechanism 2, used to adjust the distance between the locking rings 1. This connection method allows the movement of the rotating screws 201 to move the locking rings 1, thereby adjusting the distance between them. The two rotating screws 201 are fixedly connected to the outer side of their respective locking rings 1 on opposite sides. Both rotating screws 201 have threaded grooves 204 on their outer walls. These grooves 204 cooperate with other components with internal threads to achieve linear motion conversion of the rotating screws 201. Both rotating screws 201 are threaded with anti-loosening nuts 202. These nuts prevent the rotating screws 201 from loosening due to vibration during use, ensuring the stability of the rotary telescopic mechanism 2 after adjustment. The two rotating screws 201 are threaded with the same threaded sleeve 203 on adjacent sides. The threaded sleeve 203 rotates to drive the two rotating screws 201 to move closer or further apart, thereby changing the distance between the two fastening rings 1 and adjusting the length of the fastening device. Two reinforcing ribs 5 are fixedly connected to the upper and lower sides of the outer walls of the two fastening rings 1. These ribs enhance the structural strength of the fastening rings 1, making them less prone to deformation under external forces and ensuring the stability of the fastening device. Two reinforcing ribs 8 are fixedly connected to the upper and lower sides of the outer walls of the two functional fastening rings 4. These ribs also enhance the structural strength of the functional fastening rings 4, improving their load-bearing capacity during the fastening process. The outer wall of the threaded sleeve 203 has multiple anti-slip grooves 12. These grooves increase the friction between the operator's hand and the sleeve when rotating the threaded sleeve 203, making it easier and more accurate to operate the threaded sleeve 203 for length adjustment. The multiple anti-slip grooves 12 are arranged in a ring around the center of the threaded sleeve 203.
[0035] Specifically, two anti-loosening reverse thread nuts 202 are respectively fitted onto the outside of the corresponding rotating screws 201. The rotating screws 201 are fixedly connected to the outside of the fastening rings 1. The rotating screws 201 on the two fastening rings 1 are screwed into the same threaded sleeve 203. By rotating the threaded sleeve 203, the two rotating screws 201 are moved using the threaded engagement, thereby changing the distance between the two fastening rings 1 and adjusting the length of the fastening device to adapt to scaffolding with different spacing. After adjustment, the anti-loosening reverse thread nuts 202 are tightened to fit tightly against both sides of the threaded sleeve 203 to prevent the threaded sleeve 203 from moving left and right during subsequent use and to ensure the stability of the adjusted length.
[0036] Reference Figure 1 , Figure 3 and Figure 4The adaptive pipe diameter mechanism 3 includes two pipe clamping screws 301. These screws 301 are key components in the mechanism for adjusting the clamping diameter, functioning to push and adjust the position of the adaptive flexible clamping plate 303. The outer walls of the two pipe clamping screws 301 are threadedly connected to the inner walls of corresponding functional clamping rings 4. This threaded connection allows the pipe clamping screws 301 to move radially along the inner wall of the functional clamping rings 4 by rotating them, thereby changing the clamping range for the scaffold pipe diameter. Adaptive flexible clamping plates 303 are rotatably connected to adjacent sides of the two pipe clamping screws 301. The adaptive flexible clamping plates 303 can change position as the pipe clamping screws 301 move, and because of their... It features flexibility, adapting to the surface shape of scaffolding with different pipe diameters, and provides a tight and stable fastening force. Multiple functional fastening rings 4 have two auxiliary tightening screws 302 threadedly connected to their opposite sides. These auxiliary tightening screws 302 further enhance the adjustment capability of the adaptive flexible pressure plate 303, providing more precise fastening adjustment for scaffolding with different pipe diameters. The adjacent sides of the multiple auxiliary tightening screws 302 are respectively attached to the corresponding adaptive flexible pressure plate 303. Through this attachment, the auxiliary tightening screws 302 can push the adaptive flexible pressure plate 303 during rotation, working in conjunction with the pipe clamping screw 301 to more precisely adjust the fastening diameter, ensuring a stable fastening for scaffolding with different pipe diameters.
[0037] Specifically, when it is necessary to fix scaffolding members with different pipe diameters, first place the functional fastening ring 4 around the scaffolding member. For different pipe diameters, the adjustment can be made by rotating the pipe clamping screw 301. Since the outer wall of the pipe clamping screw 301 is threadedly connected to the inner wall of the functional fastening ring 4, when the pipe clamping screw 301 is rotated, the adaptive flexible pressure plate 303 is rotated and connected to the adjacent side of the pipe clamping screw 301. As the pipe clamping screw 301 moves, the adaptive flexible pressure plate 303 gradually moves closer to or away from the scaffolding member. When the auxiliary tightening screw 302 is rotated, it can further push the adaptive flexible pressure plate 303, making it fit more tightly against the surface of the scaffolding member. The adaptive flexible pressure plate 303 itself is flexible and can adaptively adjust the fitting shape according to the different pipe diameters of the members, thereby firmly holding the scaffolding members with different pipe diameters, achieving good adaptability to different pipe diameters, and ensuring the stability and reliability of the fastening.
[0038] Reference Figure 1 , Figure 3 and Figure 5The inner walls of the two fastening rings 1 are fixedly connected with a scratch-resistant and wear-resistant layer 6. This layer protects the inner walls of the fastening rings 1, preventing damage from friction or scratching during contact with scaffolding accessories and during fastening, thus extending the service life of the fastening rings 1. The outer wall area of the scratch-resistant and wear-resistant layer 6 is equal to the inner wall area of the fastening rings 1. The fastening mechanism 7 includes two connecting bolts 701. These bolts 701 serve as the main connecting components of the fastening mechanism 7, used to firmly connect the fastening rings 1 and 4. The outer walls of both connecting bolts 701 penetrate the corresponding fastening rings 1 and 4. By means of through-hole connection, the connecting bolt 701 can tightly connect two different fastening rings to achieve the fastening function of scaffolding accessories. Each of the two fastening rings 1 has a washer 702 on an adjacent side. The washer 702 can increase the contact area between the connecting bolt 701 and the fastening ring 1, disperse the pressure generated when the bolt is tightened, and prevent the fastening ring 1 from being damaged due to excessive local stress. Each of the two connecting bolts 701 has a threaded connection to a connecting nut 703 at an adjacent end, which can further tighten the connection between the fastening ring 1 and the functional fastening ring 2 4, ensuring the stability and reliability of the fastening device during use.
[0039] Specifically, the scaffold members are placed between the two locking rings 1 and the functional locking ring 4. Then, the two connecting bolts 701 are passed through the corresponding locking rings 1 and 4. Next, the washers 702 are placed on the outside of the connecting bolts 701. Finally, the connecting nuts 703 are tightened to firmly fix the scaffold.
[0040] Reference Figure 1 , Figure 3 and Figure 4 Multiple anti-slip grooves 9 are provided on the opposite sides of the two adaptive flexible pressure plates 303. The anti-slip grooves 9 are designed to increase the surface friction of the opposite sides of the adaptive flexible pressure plates 303, making it easier for construction personnel to grasp and control the adaptive flexible pressure plates 303 during operation and preventing hand slippage. The spacing between the multiple anti-slip grooves 9 is equal. Anti-slip pads 11 are provided on the adjacent sides of the two adaptive flexible pressure plates 303. The anti-slip pads 11 are used to increase the friction with the scaffold surface and ensure that when the scaffold is fastened, multiple anti-slip holes 10 are provided on the adjacent sides of the two anti-slip pads 11. The anti-slip holes 10 can be embedded into any small protrusions or gaps that may exist on the scaffold surface, further enhancing the interlocking between the anti-slip pads 11 and the scaffold, thereby more effectively preventing the scaffold from slipping after being fastened.
[0041] Specifically, when the scaffolding is fitted and ready to be tightened, the anti-slip pads 11 on the adjacent side are tightly attached to the surface of the scaffolding. The multiple anti-slip holes 10 on the anti-slip pads 11 further enhance the friction. When the scaffolding spacing is changed due to the adjustment of the rotating telescopic mechanism 2, the anti-slip pads 11 and the anti-slip holes 10 ensure that the fastening device can be firmly fixed on the scaffolding.
[0042] Working Principle: This scaffolding accessory fastening device effectively solves the problem of fixed length and inability to flexibly adjust according to the spacing of scaffolding sections in existing technologies. In use, the first step is for the construction worker to place two anti-loosening reverse thread nuts 202 onto the outer side of the corresponding rotating screws 201, based on the distance between the two scaffolding sections to be fixed. Next, the rotating screws 201 on the two fastening rings 1 are screwed into the threaded sleeves 203. Since the rotating screws 201 and threaded sleeves 203 cooperate through the threaded grooves 204, rotating the threaded sleeves 203 can change the distance between the two scaffolding sections. Adjust the distance between the locking rings 1 to accommodate scaffolding with different spacing. Then, tighten the anti-loosening reverse thread nut 202 to make it fit tightly against both sides of the threaded sleeve 203 to prevent the threaded sleeve 203 from moving left and right, thereby stabilizing the adjusted length. After the length adjustment is completed, put the scaffolding between the two locking rings 1 and the functional locking ring 2 4. Then, pass the two connecting bolts 701 through the corresponding locking rings 1 and functional locking ring 2 4. Next, put the washer 702 on the outside of the connecting bolts 701. Finally, tighten the connecting nut 703 to achieve a firm fixation of the scaffolding.
[0043] The adaptive pipe diameter mechanism 3 of this scaffolding accessory fastening device effectively solves the problem that existing fastening devices cannot adapt to different pipe diameters. During operation, when facing scaffolding of different diameters, the pipe clamping screw 301 is first tightened. Utilizing its threaded connection with the inner wall of the functional fastening ring 4, the pipe clamping screw 301 moves radially, causing the adaptive flexible pressure plate 303, which is rotatably connected to it, to move closer to the scaffolding. Once the adaptive flexible pressure plate 303 is initially in close contact with the scaffolding, multiple auxiliary tightening screws 302 are rotated. These screws, also threadedly connected to the functional fastening ring 4, move towards the adaptive flexible pressure plate 303, thus compressing it. Because the adaptive flexible pressure plate 303 is flexible, it can better conform to the scaffolding surface after being compressed, tightly wrapping the scaffolding from the front and back. Regardless of the scaffolding pipe diameter, a tight and stable clamping can be achieved, ensuring that the fastening device adapts to scaffolding of different pipe diameters and overcoming the shortcomings of existing technologies.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A scaffolding accessory fastening device, comprising a fastening ring (1), characterized in that: Functional fastening rings 2 (4) are provided on the opposite side of the two fastening rings 1 (1), a rotating telescopic mechanism (2) is provided between the two fastening rings 1 (1) and an adaptive pipe diameter mechanism (3) is provided on the outer side of the two functional fastening rings 2 (4), and a fastening mechanism (7) is provided between the multiple fastening rings 1 (1) and the functional fastening rings 2 (4). The rotary telescopic mechanism (2) includes two rotating screws (201). The two rotating screws (201) are respectively fixedly connected to the outer side of the corresponding fastening ring (1) on opposite sides. The outer walls of the two rotating screws (201) are provided with threaded grooves (204). The outer walls of the two rotating screws (201) are threaded with anti-loosening reverse thread nuts (202). The two rotating screws (201) are threaded with the same threaded sleeve (203) on adjacent sides.
2. The scaffolding accessory fastening device according to claim 1, characterized in that: The adaptive pipe diameter mechanism (3) includes two pipe clamping screws (301). The outer walls of the two pipe clamping screws (301) are respectively threaded to the inner walls of the corresponding functional fastening rings (4). Adaptive flexible pressure plates (303) are rotatably connected to the adjacent sides of the two pipe clamping screws (301). Two auxiliary tightening screws (302) are threaded to the opposite sides of the multiple functional fastening rings (4). The adjacent sides of the multiple auxiliary tightening screws (302) are respectively attached to the corresponding adaptive flexible pressure plates (303).
3. The scaffolding accessory fastening device according to claim 1, characterized in that: The inner walls of the two fastening rings (1) are fixedly connected with a scratch-resistant and wear-resistant layer (6), and the outer wall of the scratch-resistant and wear-resistant layer (6) has the same area as the inner wall of the fastening ring (1).
4. The scaffolding accessory fastening device according to claim 1, characterized in that: The two fastening rings (1) are fixedly connected to the upper and lower sides of their outer walls with two reinforcing ribs (5), and the two functional fastening rings (4) are fixedly connected to the upper and lower sides of their outer walls with two reinforcing ribs (8).
5. A scaffolding accessory fastening device according to claim 1, characterized in that: The fastening mechanism (7) includes two connecting bolts (701). The outer walls of the two connecting bolts (701) are penetrated by the corresponding fastening ring one (1) and functional fastening ring two (4). A washer (702) is provided on the adjacent side of the two fastening rings one (1). A connecting nut (703) is threaded to the adjacent end of the two connecting bolts (701).
6. A scaffolding accessory fastening device according to claim 2, characterized in that: Multiple anti-slip grooves (9) are provided on the opposite side of the two adaptive flexible pressure plates (303), and the spacing between adjacent anti-slip grooves (9) is equal.
7. A scaffolding accessory fastening device according to claim 2, characterized in that: Each of the two adaptive flexible pressure plates (303) is provided with an anti-slip pad (11) on an adjacent side, and each of the two anti-slip pads (11) is provided with a plurality of anti-slip holes (10) on an adjacent side.
8. A scaffolding accessory fastening device according to claim 1, characterized in that: The outer wall of the threaded sleeve (203) is provided with multiple anti-slip patterns (12), and the multiple anti-slip patterns (12) are arranged in a ring array with the center of the threaded sleeve (203) as the center.