Scaffold fastener anti-falling device

Abstract

The utility model discloses a scaffold fastener anti-falling device which comprises a first pressing piece and a second pressing piece which are hinged to each other, and the first pressing piece and the second pressing piece are connected through a bolt. And the stop nut with a specific structure is arranged on the bolt, so that the stability and the safety of connection are enhanced, and potential safety hazards in construction are reduced. And meanwhile, the operation process is simplified, the dependence on the skills of operators is reduced, and the construction efficiency is improved. Besides, the scaffold fastener has high universality and adaptability, can be widely applied to different types of scaffold fasteners, such as right-angle fasteners, rotary fasteners and butt joint fasteners, and further improves the reliability and durability of a scaffold system.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a scaffold fastener anti-falling device. Background Art

[0002] Scaffolding fasteners are used to connect and fix steel pipes in construction to build a stable support structure. However, the fasteners in the prior art often face the problem of loose nuts accidentally falling off due to improper use of electric torque wrenches during removal, which not only increases construction risks, but also may lead to material loss and reduced construction efficiency. Therefore, an improved device is urgently needed to ensure the stability of the nuts during the removal process and improve the turnover efficiency of the fasteners. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a scaffold fastener anti-falling device which can effectively prevent the fixing nut from accidentally falling off when the fixing nut is twisted by an electric torque wrench.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A scaffold fastener anti-falling device, comprising:

[0006] A first pressing piece and a second pressing piece hinged to each other, wherein a fastening cavity for clamping the tubular member is provided between the first pressing piece and the second pressing piece;

[0007] A first connecting portion is provided at one end of the first pressing sheet away from the second pressing sheet, and a second connecting portion is provided at one end of the second pressing sheet away from the first pressing sheet;

[0008] A bolt, which passes through the first connecting portion and the second connecting portion and fixes the tubular member by tightening a fastening nut;

[0009] The head of the bolt is provided with a stopper to prevent the fastening nut from sliding off the head of the bolt.

[0010] Further, the stop portion is a stop nut;

[0011] The stop nut has an internal thread that cooperates with the bolt, and the outer diameter of the stop nut is smaller than the outer diameter of the fastening nut.

[0012] Furthermore, the stop nut has a cylindrical outer surface.

[0013] Furthermore, the cylindrical outer surface is provided with anti-slip structures arranged at intervals along the extending direction of the bolts.

[0014] Furthermore, the stop nut has a port for the bolt head to enter, and an end of the stop nut away from the port is provided with a bottom wall to prevent the bolt head from passing through the stop nut.

[0015] Furthermore, a flange is provided along the outer surface of the stop nut, and the diameter of the flange is smaller than the outer diameter of the fastening nut.

[0016] Furthermore, a stop washer is provided between the fastening nut and the stop nut.

[0017] Further,

[0018] The first connecting portion is a through hole, the second connecting portion is a notch, and the bolt can pass through the through hole and the notch;

[0019] When the fastening nut is located on the bolt, the position where it slides out of the notch is the disassembly position;

[0020] The stop nut is located at the disassembly position or away from the disassembly position along the direction of the bolt head.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides a scaffold fastener anti-dropping device, which simplifies the operation process, reduces the dependence on the operator's skills, and improves the construction efficiency and the turnover rate of the fastener by setting a stop nut with a specific structure on the bolt. In addition, the scheme has a high degree of versatility and adaptability, and can be widely used in different types of scaffold fasteners, such as right-angle fasteners, rotating fasteners and butt fasteners, further improving the reliability and durability of the scaffolding system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic cross-sectional diagram of the installation of the stopper of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation of the stopper of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the stopper of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the right-angle fastener of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the rotary fastener of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the butt fastener of the utility model.

[0030] in,

[0031] 10. first pressing sheet; 11. first connecting portion;

[0032] 20. second pressing sheet; 21. second connecting portion;

[0033] 30. Bolt 30; 31. Bolt head;

[0034] 40. Stopper; 41. Internal thread; 42. Bottom wall; 43. Flange; 44. Anti-slip structure;

[0035] 50. Tighten the nut;

[0036] 60. Tubular components. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connections / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0038] Scaffolding fasteners are a type of connector used to fasten different parts of steel pipes or components together to form a stable support structure. They are specifically designed to ensure that each component can be precisely docked, providing the necessary rigidity and stability, so that the entire scaffolding system is safe and reliable during construction. There are many types of scaffolding fasteners, refer to Figure 4-6 , including but not limited to right-angle fasteners, swivel fasteners, butt fasteners, etc. Each fastener has its specific purpose and installation method to meet different construction needs.

[0039] The utility model provides a scaffold fastener anti-falling device to solve the problem that the fastening nut 50 falls off when the fastening nut 50 of the scaffold is disassembled, thereby causing damage to the fastener.

[0040] Reference Figure 1-6A scaffold fastener anti-falling device, comprising: a first pressing piece 10 and a second pressing piece 20 hinged to each other, a fastening cavity for clamping a tubular member 60 between the first pressing piece 10 and the second pressing piece 20; a first connecting portion 11 at one end of the first pressing piece 10 away from the second pressing piece 20, and a second connecting portion 21 at one end of the second pressing piece 20 away from the first pressing piece 10; a bolt 30, the bolt 30 passes through the first connecting portion 11 and the second connecting portion 21, and fixes the tubular member 60 by tightening a fastening nut 50; a stopper 40 is provided at the head of the bolt 30 to prevent the fastening nut 50 from sliding off the head of the bolt 30. The tubular member 60 here is preferably a steel pipe. At present, an electric torque wrench is generally used to remove the fastening nut 50 on the scaffolding fastener. When using the electric torque wrench, the output part of the electric torque wrench cooperates with the fastening nut 50, so that the fastening nut 50 moves along the screw rod; in some cases, because the operator controls the electric torque wrench for too long, the fastening nut 50 moves along the screw rod to the bolt head 31, and the electric torque wrench is not stopped in time, resulting in the fastening nut 50 falling from the position of the bolt head 31. Therefore, by providing a stopper 40 at the position of the bolt head 31, the fastening nut 50 can be prevented from continuing to move after reaching the stopper 40, so that the fastening nut 50 remains on the bolt head 31, thereby solving the problem of the fastening nut 50 falling.

[0041] Among them, when the fastener is a right-angle fastener, a rotating fastener or a butt fastener, a stopper 40 can be set at the bolt head 31 of the connecting bolt 30 to obtain an enhanced fixing effect and an additional safety guarantee to prevent the bolt 30 from loosening or falling off. The stopper 40 can be a raised block, a limit groove or any other form of mechanical structure. Its function is to provide additional resistance after the bolt 30 is tightened to a certain torque to solve the problem of the fastening nut falling off caused by the electric torque wrench. This design not only improves the overall stability of the scaffolding structure, but also reduces the potential safety hazards during the construction process, ensuring the safety of construction personnel and the smooth progress of the project.

[0042] In some embodiments, reference Figure 1-3, the stopper 40 is a stop nut; the stop nut has an internal thread 41 that is connected to the bolt 30, and the outer diameter of the stop nut is smaller than the outer diameter of the fastening nut 50. It can be understood that the outer diameter of the stop nut is smaller than the outer diameter of the fastening nut 50 in order not to affect the output end of the electric torque wrench from entering and cooperating with the fastening nut. During the tightening process using the electric torque wrench, once the fastening nut 50 reaches the position of the stop nut, it cannot continue to rotate, thereby effectively preventing the fastening nut 50 from falling off the bolt 30 due to improper operation of the electric torque wrench. The setting of the stop nut simplifies the operator's requirements for torque control and ensures the continuity and safety of the construction process.

[0043] Further, refer to Figure 1-3 , the stop nut has a cylindrical outer surface, and the material is one of steel, plastic, and nylon. The stop nut has a cylindrical outer surface, which can provide a uniform and continuous contact surface, so that during the tightening process of the electric torque wrench, the contact between the fastening nut 50 and the stop nut is more stable and uniform, thereby not affecting the disassembly effect of the electric torque wrench on the fastening nut. The cylindrical outer surface helps to reduce local stress concentration and avoid damage or slippage caused by uneven contact surfaces. In addition, this design simplifies the manufacturing process of the stop nut, improves production efficiency, and also facilitates manual operation during installation and removal.

[0044] Further, refer to Figure 2 The cylindrical outer surface is provided with anti-skid structures 44 arranged at intervals along the extending direction of the bolt 30. The anti-skid structures 44 increase the friction coefficient between the stop nut and the nut when the stop nut is manually tightened, which helps to provide better grip during tightening or loosening and reduce the risk of loose fastening or loosening due to sliding.

[0045] Further, refer to Figure 1-3 The stop nut has a port for the bolt head 31 to enter, and a bottom wall 42 is provided at one end of the stop nut away from the port to prevent the bolt head 31 from passing through the stop nut. That is, when in use, the user only needs to tighten the stop nut along the bolt head 31, and when it is screwed to a certain position, that is, when one end of the bolt head 31 abuts against the bottom wall 42, the stop nut reaches a predetermined position. This can reduce the number of operating steps and optimize the operating process.

[0046] In some embodiments, reference Figure 2-4A flange 43 is provided along the outer surface of the stop nut, and the diameter of the flange 43 is smaller than the outer diameter of the fastening nut 50. The flange 43 can enhance the structural strength of the stop nut and improve its ability to resist deformation and damage. The flange 43 can also serve as a visual or tactile mark to help the operator recognize that the fastening nut 50 has been tightened to the proper position, thereby improving the accuracy and efficiency of the construction.

[0047] In some embodiments, a stop washer (not shown) is provided between the fastening nut 50 and the stop nut. The stop washer provides an additional anti-loosening mechanism. When the fastening nut 50 is tightened onto the stop nut, the washer can increase the friction of the contact surface, thereby improving the stability of the connection and preventing the nut from loosening. Secondly, the washer can absorb the stress generated during the tightening process, reduce the direct impact on the bolt 30, the nut and the stop nut, and extend their service life. In addition, the stop washer can also serve as a buffer layer to reduce the direct metal contact between the fastening nut 50 and the stop nut, reducing the risk of damage caused by friction or corrosion.

[0048] In some embodiments, reference Figure 4 , the first connecting part 11 is a through hole, the second connecting part 21 is a notch, and the bolt 30 can pass through the through hole and the notch; when the fastening nut 50 is located on the bolt 30, the position where it slides out from the notch is the disassembly position; the stop nut is located at the disassembly position or away from the disassembly position along the direction of the bolt head 31. It can be understood that when the first connecting part 11 is a through hole and the second connecting part 21 is a notch, a flexible connection method is provided for the bolt 30. The bolt 30 can pass through the through hole and the notch, making the connection easier and also providing convenience for disassembly. When the fastening nut 50 is located on the bolt 30, the position where it slides out from the notch is defined as the disassembly position, which provides a clear operation point for quick disassembly. Here, the position of the stop nut can be in two situations: one is located at the disassembly position, at which time it plays an initial stop role to prevent the fastening nut 50 from accidentally loosening when the disassembly operation is not performed; the other is away from the disassembly position along the direction of the bolt head 31, which provides a safe stopping point for the fastening nut 50 to prevent it from falling off the bolt 30 when the electric torque wrench is turned. Such a structure improves the safety and reliability of the connection, and also allows for quick disassembly when necessary, because the fastening nut 50 can slide directly from the notch to the disassembly position without removing the stop nut.

[0049] Reference Figure 4-6, the fasteners of the utility model can also include various forms such as right-angle fasteners, rotating fasteners, and butt fasteners. After being provided with the above-mentioned stoppers, different fasteners can significantly improve the stability and safety during disassembly. It enhances the versatility of the fasteners, makes the construction process more efficient, reduces the construction risks caused by unstable connections, and also facilitates disassembly and maintenance work after construction. Through this innovative stop mechanism, the fasteners of the utility model can be widely used in various construction scenarios, meet different construction needs, and improve the safety and durability of the entire scaffolding system.

[0050] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A scaffolding fastener anti-falling device, characterized in that: include: A first pressing sheet and a second pressing sheet hinged to each other, wherein a fastening cavity for clamping the tubular member is provided between the first pressing sheet and the second pressing sheet; A first connecting portion is provided at one end of the first pressing sheet away from the second pressing sheet, and a second connecting portion is provided at one end of the second pressing sheet away from the first pressing sheet; A bolt, which passes through the first connecting portion and the second connecting portion and fixes the tubular member by tightening a fastening nut; The head of the bolt is provided with a stopper to prevent the fastening nut from sliding off the head of the bolt.

2. The scaffolding fastener anti-falling device according to claim 1, characterized in that: The stopper portion is a stop nut; The stop nut has an internal thread that cooperates with the bolt, and the outer diameter of the stop nut is smaller than the outer diameter of the fastening nut.

3. The scaffolding fastener anti-falling device according to claim 2, characterized in that: The stop nut has a cylindrical outer surface and is made of one of steel, plastic and nylon.

4. The scaffolding fastener anti-falling device according to claim 3, characterized in that: The cylindrical outer surface is provided with anti-slip structures arranged at intervals along the extending direction of the bolts.

5. The scaffolding fastener anti-falling device according to claim 2, characterized in that: The stop nut is provided with a port for the bolt head to enter, and a bottom wall is provided at one end of the stop nut away from the port to prevent the bolt head from passing through the stop nut.

6. The scaffolding fastener anti-falling device according to claim 2, characterized in that: A flange is arranged along the outer surface of the stop nut, and the diameter of the flange is smaller than the outer diameter of the fastening nut.

7. The scaffolding fastener anti-falling device according to claim 2, characterized in that: A stop washer is provided between the fastening nut and the stop nut.

8. The scaffolding fastener anti-falling device according to claim 2, characterized in that: The first connecting portion is a through hole, the second connecting portion is a notch, and the bolt can pass through the through hole and the notch; When the fastening nut is located on the bolt, the position where it slides out of the notch is the disassembly position; The stop nut is located at the disassembly position or away from the disassembly position along the direction of the bolt head.

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