Hat double-chuck buckle square tube cross bar
By connecting the snap-fit groove and snap-fit block of the double-clamp square tube crossbar with the cap, the problems of low scaffolding erection efficiency and heavy weight in the existing technology are solved, realizing an efficient and safe construction process, which is suitable for diverse construction needs.
Patent Information
- Application Number
- CN202520217960.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing scaffolding connecting couplers are inefficient to assemble in large-scale construction projects, are heavy, lead to high physical exertion for construction workers and pose safety risks, and are limited in use in sites with limited load-bearing capacity.
The square tube crossbar with double-clamped cap buckle is connected to the crossbar through a snap-fit groove and snap-fit block, eliminating the grinding process and reducing weight. The elliptical conical locking hole and limit platform improve the installation accuracy and stability.
It improves the efficiency of scaffolding erection, reduces the physical exertion and safety risks for construction workers, broadens the scope of application, and enhances the stability and safety of high-altitude operations.
Smart Images

Figure CN223647402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scaffolding technology, specifically to a square tube crossbar with a double-clamp disc buckle. Background Technology
[0002] In various engineering fields such as construction, decoration, and bridge construction, scaffolding is an indispensable temporary facility in construction, playing a vital role in providing a safe and stable high-altitude working platform for construction workers. Scaffolding is composed of multiple steel pipes connected together by couplers. The steel pipes are mainly divided into uprights (pole) and horizontal bars, while the couplers, as a key component in scaffolding construction, bear the heavy responsibility of connecting the horizontal bars and uprights.
[0003] Currently, common scaffolding connection couplers include Figure 1 As shown, it includes a first connector 12 and a second connector. The first connector 12 is fixedly connected to the column 13, and several connecting blocks 14 are arranged circumferentially. The second connector consists of a positioning block 15, a plug-in block 16 and a clamping part. The clamping part is fixedly connected to the positioning block 15 and can be detachably connected to the connecting block 14. The plug-in block 16 is fixed on the side of the positioning block 15 away from the clamping part. The crossbar 4 is installed on the plug-in block 16 by plugging and is fixed to the plug-in block 16.
[0004] In actual scaffolding erection, the first connector 12 must be fixed to the upright 13, then the horizontal bar 4 is inserted and fixed to the insertion block 16, and finally the clamping part is connected to the connecting block 14 to complete the connection between the upright 13 and the horizontal bar 4. However, this technical solution has obvious drawbacks: in large-scale construction projects, to ensure a tight connection between the horizontal bar 4 and the insertion block 16, the insertion block 16 needs to be ground. This process is time-consuming and labor-intensive, greatly reducing the efficiency of scaffolding erection and seriously affecting the project progress. In addition, the positioning block 15 is a solid structure and has the insertion block 16, which significantly increases the weight of the connecting fasteners, increasing the physical exertion of construction workers during handling and installation. It is difficult to operate at heights and poses safety risks, and falls could easily cause accidents. In areas with limited bearing capacity, such as soft soil foundations and floors, excessively heavy connecting fasteners can cause the overall weight of the scaffolding to exceed the site's bearing capacity, restricting the use of the scaffolding and potentially damaging the site structure, making it difficult to meet diverse construction needs. Utility Model Content
[0005] The present invention aims to provide a hat-shaped double-clamp disc buckle square tube crossbar to solve the problems of low scaffolding erection efficiency and heavy connecting fasteners.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a square tube crossbar with a double-clamp disc buckle for hats, including a snap-fit block and a clamping part, wherein the clamping part is fixedly connected to the snap-fit block and detachably connected to the connecting block; a snap-fit groove is provided on the side of the snap-fit block away from the clamping part, and one end of the crossbar is snapped into the snap-fit groove and fixedly connected to the snap-fit block.
[0007] The beneficial effects of this solution are as follows: when erecting scaffolding, first fix the No. 1 connector to the upright, then snap the horizontal bar into the snap-fit groove and fix it to the snap-fit block, and finally connect the clamping part to the connecting block to complete the connection between the upright and the horizontal bar.
[0008] Compared to existing technologies, this technical solution offers significant advantages. Firstly, by changing the horizontal bar connection method to use snap-fit connections instead of plug-in connections, the grinding process for connecting components is eliminated. This not only simplifies the erection process but also saves considerable time and manpower, greatly improving scaffolding erection efficiency and significantly accelerating the overall project progress in large-scale construction projects. Secondly, the optimized snap-fit block design effectively reduces the overall weight of the components. This significantly reduces the physical exertion of construction workers during handling and installation, making operations at heights easier and more flexible, greatly reducing the possibility of safety accidents caused by falling components, and effectively protecting the lives of construction workers. Thirdly, the reduced component weight lowers the overall weight of the scaffolding, allowing it to be used normally on sites with limited load-bearing capacity, such as soft soil foundations and floors, avoiding damage to the site structure due to excessive weight. This broadens the application range of scaffolding and better meets diverse construction needs.
[0009] Furthermore, the snap-fit groove is a square groove.
[0010] The beneficial effects of this solution are as follows: This technical solution innovatively designs the snap-fit groove as a square groove to fit the square crossbar. This design plays a crucial role in high-altitude work scenarios, providing construction workers with more reliable safety guarantees and significantly improving the stability of the scaffolding. At heights of hundreds of meters, construction conditions are harsh, and even the slightest carelessness can lead to serious accidents; therefore, the safety and stability of construction workers are paramount. The square crossbar and square snap-fit groove perfectly match, and compared to round crossbars, its unique shape provides construction workers with a larger standing area and more stable support. When construction workers walk on the scaffolding, carry materials, or perform construction work, the flat surface of the square crossbar effectively prevents their feet from slipping, greatly reducing the risk of falls due to instability and making construction workers feel safer when working at heights. Furthermore, tools and materials placed on the square crossbar are more stable, and the square crossbar also strengthens the overall rigidity of the scaffolding, making it perform better in resisting complex external forces such as strong winds and vibrations, laying a solid foundation for the smooth progress of high-altitude construction.
[0011] Furthermore, the snap-fit block is provided with a through hole that communicates with the snap-fit groove, and the size of the through hole is smaller than that of the snap-fit groove.
[0012] The beneficial effects of this solution are as follows: This innovative technical solution adds through holes to the snap-fit blocks, which not only effectively reduces the weight of the snap-fit blocks, lowers the difficulty of handling during construction, and improves operational convenience, but also cleverly constructs a limiting platform inside the snap-fit block because the through hole size is smaller than the snap-fit groove. This carefully designed limiting platform can precisely limit the installation position of the horizontal bar, ensuring that the horizontal bar is accurately positioned during installation, effectively improving installation accuracy and efficiency, and laying a solid foundation for building a stable and reliable scaffolding structure.
[0013] Furthermore, the clamping part includes a locking member and two opposing clamping blocks. Both clamping blocks are fixedly connected to the snap-fit block. Each clamping block has a first locking hole, and the connecting block has a second locking hole. The locking member can fix the two clamping blocks to the connecting block.
[0014] The beneficial effects of this solution are as follows: At the operational level, when erecting scaffolding, construction workers only need to symmetrically clamp two clamping blocks on both sides of the connecting block, and then use locking devices to fix the clamping blocks, thus quickly completing the fixing operation. This process greatly shortens the erection time and significantly improves construction efficiency, demonstrating its advantages in projects with tight schedules. In terms of disassembly and maintenance, this design has excellent disassembly capabilities. Construction workers only need to remove the locking devices to easily separate the clamping parts from the connecting block, providing great convenience for subsequent handling, storage, and reuse. This not only reduces maintenance and management costs but also has high practicality and economy, better meeting the diverse needs of building construction.
[0015] Furthermore, the locking component includes a positioning pin and a limiting pin. The positioning pin is adapted to the first locking hole and the second locking hole. The positioning pin is provided with several positioning holes, and the limiting pin can be inserted into the positioning holes.
[0016] The beneficial effects of this solution are as follows: During installation, the positioning pins have a high degree of compatibility with locking holes one and two, allowing construction workers to quickly and accurately insert the positioning pins sequentially, greatly saving installation time. Then, the limiting pins are inserted, making the entire fixing process smooth and efficient, significantly improving scaffolding erection efficiency. Regarding connection stability, the positioning pins fit tightly with locking holes one and two, forming a double locking structure with the limiting pins. This significantly enhances the connection strength between clamping blocks one and two and the connecting blocks, enabling it to withstand large construction loads and external impacts, ensuring the safety of scaffolding use. Furthermore, disassembly and maintenance are very convenient; simply pulling out the limiting pins allows for easy removal of the positioning pins, facilitating reuse and reducing maintenance costs.
[0017] Furthermore, both the No. 1 and No. 2 locking holes are elliptical cones, and the shape of the locating pin is adapted to the No. 1 and No. 2 locking holes.
[0018] The beneficial effects of this solution are as follows: the elliptical cone-shaped locking holes No. 1 and No. 2 have unique advantages, which can evenly distribute external forces to the surrounding structure. Due to their special shape, the force diffuses along the elliptical and cone-shaped surfaces, effectively avoiding stress concentration and enhancing the overall structural stability and load-bearing capacity. When subjected to shear force, the major and minor axes of the ellipse can bear forces in different directions. The cone-shaped structure increases the friction and interlocking force between components, improves the shear resistance of the connection parts, reduces relative sliding or shear failure, and significantly improves the structural reliability.
[0019] Furthermore, both clamping blocks No. 1 and No. 2 are provided with U-shaped holes.
[0020] The beneficial effects of this solution are as follows: By setting U-shaped holes on clamping blocks No. 1 and No. 2, this technology allows clamping blocks No. 1 and No. 2 to fit perfectly with the surface of connector No. 1, effectively enhancing the tightness of the connection between them, making the entire connection structure more stable, and able to withstand greater construction loads and external impacts, ensuring that the scaffolding is safer and more reliable during use; on the other hand, the presence of U-shaped holes can further reduce the weight of clamping blocks No. 1 and No. 2.
[0021] Furthermore, a connecting rope is provided between the positioning pin and the first connector.
[0022] The beneficial effects of this solution are as follows: This technical solution, through the ingenious design of the connecting rope, achieves multiple significant advantages. It not only effectively prevents the accidental loss of the positioning pin, ensuring the reliability of parts management, but also greatly facilitates the retrieval and operation by construction personnel, significantly improving construction efficiency. At the same time, this design eliminates the safety hazards caused by the falling positioning pin, ensuring construction safety, reducing potential costs, and providing strong support for the smooth progress of the project. Attached Figure Description
[0023] Figure 1 This is a three-dimensional view of the scaffolding connecting fastener in the prior art of this utility model;
[0024] Figure 2 This is a three-dimensional view of the square tube crossbar with double clip buckle on the hat according to this utility model;
[0025] Figure 3 This is a three-dimensional view of the square tube crossbar with double clip buckle on the hat of this utility model, and its cooperation with the No. 1 connecting piece and the crossbar. Detailed Implementation
[0026] The following detailed description illustrates the specific implementation method:
[0027] The reference numerals in the accompanying drawings include: snap-fit block 1, snap-fit groove 2, through hole 3, crossbar 4, clamping block 5, locking hole 1 6, locking hole 2 7, positioning pin 8, limit pin 9, positioning hole 10, U-shaped hole 11, connector 1 12, column 13, connecting block 14, positioning block 15, and plug-in block 16.
[0028] Example
[0029] The basic structure of the hat's double-clip buckle square tube crossbar 4 is as follows: Figure 1-3 As shown.
[0030] like Figure 2 The hat double-clamp disc buckle square tube crossbar 4 shown includes a snap-fit block 1 and a clamping part.
[0031] like Figure 2-3 As shown, the right side of the snap-fit block 1 has a snap-fit groove 2, which is designed as a square groove to accommodate the square crossbar 4, ensuring precise alignment between the crossbar 4 and the snap-fit block 1. The left side of the snap-fit groove 2 has a through hole 3, the size of which is smaller than the snap-fit groove 2. This design creates a limiting platform inside the snap-fit block 1, precisely defining the installation position of the crossbar 4. During actual installation, the crossbar 4 snaps into the snap-fit groove 2 and abuts against the limiting platform, then is welded to the snap-fit block 1 to ensure a stable connection. It should be noted that… Figure 2 The arrangement of the snap-fit slot 2 shown is only one embodiment of the present invention. Any method that can realize the snap-fit function between the snap-fit block 1 and the crossbar 4 is within the scope of the present invention.
[0032] like Figure 2-3 As shown, the clamping part includes a locking member and two opposing clamping blocks 5, both of which are welded to the left side of the snap-fit block 1. Each clamping block 5 has a first locking hole 6, and the connecting block 14 has a second locking hole 7. Both the first locking hole 6 and the second locking hole 7 are elliptical cone-shaped, and the locking member can fix the two clamping blocks 5 to the connecting block 14.
[0033] like Figure 3 As shown, the locking mechanism includes a positioning pin 8 and a limiting pin 9. A connecting rope is provided between the positioning pin 8 and the first connecting piece 12, connecting the positioning pin 8 and the first connecting piece 12 together, which can prevent the positioning pin 8 from being lost or falling off. The positioning pin 8 is adapted to the first locking hole 6 and the second locking hole 7. Two positioning holes 10 are opened on the positioning pin 8, and the limiting pin 9 is inserted into the positioning holes 10 to limit the positioning pin 8. A U-shaped hole 11 is opened at the right end of each clamping block 5, which not only reduces the weight, but also makes the clamping block 5 fit tightly against the surface of the first connecting piece 12, enhancing the connection stability.
[0034] The specific implementation process is as follows:
[0035] When erecting the scaffold, first, fit the first connector 12 onto the column 13 and weld it in place. Then, insert the horizontal bar 4 into the locking groove 2, press it against the limiting platform, and weld it to the locking block 1. Next, symmetrically clamp the two clamping blocks 5 on both sides of the connecting block 14, aligning the first locking hole 6 and the second locking hole 7, allowing the lower end of the positioning pin 8 to pass through and the head to be locked onto the clamping block 5. Based on the distance between the two clamping blocks 5, insert the limiting pin 9 into the appropriate positioning hole 10, locking the two clamping blocks 5 and the connecting block 14, completing the connection between the column 13 and the horizontal bar 4, and gradually erecting the scaffold.
[0036] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A square tube crossbar with double-clip buckle for hats, characterized in that: It includes a snap-fit block and a clamping part. The clamping part is fixedly connected to the snap-fit block and detachably connected to the connecting block. The snap-fit block has a snap-fit groove on the side away from the clamping part. One end of the crossbar is snapped into the snap-fit groove and fixedly connected to the snap-fit block.
2. The square tube crossbar with double-clamp buckle for hats according to claim 1, characterized in that: The snap-fit slot is a square slot.
3. The square tube crossbar with double-clamp buckle for hats according to claim 2, characterized in that: The snap-fit block has a through hole that communicates with the snap-fit groove, and the size of the through hole is smaller than that of the snap-fit groove.
4. The square tube crossbar with double-clamp buckle for hats according to claim 3, characterized in that: The clamping part includes a locking member and two opposing clamping blocks. Both clamping blocks are fixedly connected to the snap-fit block. Each clamping block has a first locking hole, and the connecting block has a second locking hole. The locking member can fix the two clamping blocks to the connecting block.
5. The square tube crossbar with double-clamp buckle for hats according to claim 4, characterized in that: The locking component includes a positioning pin and a limiting pin. The positioning pin is adapted to the first locking hole and the second locking hole. The positioning pin has several positioning holes, and the limiting pin can be inserted into the positioning holes.
6. The square tube crossbar with double-clamp buckle for hats according to claim 5, characterized in that: Both locking holes No. 1 and No. 2 are elliptical cones, and the shape of the locating pin is adapted to locking holes No. 1 and No.
2.
7. The square tube crossbar with double-clamp buckle for hats according to claim 6, characterized in that: Both clamping blocks No. 1 and No. 2 are equipped with U-shaped holes.
8. The square tube crossbar with double-clamp buckle for hats according to claim 7, characterized in that: A connecting rope is provided between the positioning pin and the No. 1 connector.