Adjustable triangular support for disc buckle support frame
By setting adjustable triangular braces with adjustment pin holes on the support poles, the problems of inflexible adjustment and insufficient stability of existing triangular braces are solved, enabling rapid adaptation to the needs of different construction scenarios and improving construction efficiency and material turnover efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIFTH ENG DIV CORP LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
Existing socket-type disc-lock scaffolding triangular bracing has problems such as inflexible adjustment, insufficient stability, and difficulty in material turnover during construction. In particular, it requires frequent dismantling and modification between different processes, resulting in a waste of manpower and time.
Design an adjustable triangular brace for a disc-lock support frame. By setting adjustment pin holes on the support uprights and combining the detachable connection between the horizontal steel pipe and the support rectangular tube, the height can be adjusted in stages to ensure structural stability and efficient turnover.
It enables rapid adaptation of the triangular brace to different construction scenarios without the need for overall dismantling and modification, thereby improving construction efficiency and structural stability and reducing material costs.
Smart Images
Figure CN224495727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction scaffolding, and in particular to an adjustable triangular brace for a disc-lock support frame. Background Technology
[0002] In the construction engineering field, the modular scaffolding system, as a core component for construction safety protection and operation platforms, has expanded its application from traditional exterior wall decoration construction to various edge protection operations. For example, in areas near building perimeters and staircases, protective scaffolding is needed to create safe operating spaces to ensure the safety of construction workers. However, the commonly used socket-type modular scaffolding with external triangular bracing structure still faces the following technical bottlenecks in practical applications:
[0003] On the one hand, in traditional exterior wall construction scenarios, the auxiliary reinforcing rectangular tubes of existing triangular bracing are mostly fixed by welding. This means that adjusting the distance between the scaffold and the main structure requires overall disassembly and reassembly. Especially during the transition between main construction and exterior wall decoration, the scaffold needs to be repeatedly disassembled and modified due to different requirements for the distance of the working surface, resulting in a waste of manpower and time. On the other hand, in support and protection scenarios, the existing structure lacks multi-position adjustment pin holes on the horizontal bars, making it impossible to flexibly adjust the support angle and stress point according to the size of the protected area, the span of the adjacent edge, and the load distribution. Moreover, the indirect connection between the middle plate and the uprights results in a long load transfer path, which can easily lead to the risk of local instability in protective scaffolds where personnel frequently work.
[0004] Furthermore, as industrialized construction demands higher efficiency, traditional welded triangular bracing, lacking detachability, struggles to achieve standardized reuse of components. This is especially true in the segmented construction of super high-rise buildings, where it is necessary to frequently customize support components of different specifications, resulting in high material costs. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide an adjustable triangular brace for a disc buckle support frame, which can achieve rapid and graded height adjustment through the adjustment pin holes of the support upright, adapting to multiple construction scenarios without overall disassembly and modification, and has a stable structure, high turnover efficiency, and strong durability.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] An adjustable triangular brace for a disc-lock scaffold is provided, comprising: a horizontal steel pipe, a supporting rectangular tube, and a supporting upright; one end of the horizontal steel pipe is provided with a cast head, which is connected to the disc-lock pin of the scaffold upright through the cast head, and the other end of the horizontal steel pipe is provided with a connecting pin hole, which is detachably connected to the supporting upright through a pin; the supporting rectangular tube is arranged at an inclination, and one end of it is connected to the disc-lock pin of the scaffold upright through the pin hole, and the other end is connected to the horizontal steel pipe to form a triangular support structure;
[0008] The support column is provided with several adjusting pin holes along the vertical direction. The connecting pin hole of the horizontal steel pipe is connected to the adjusting pin hole by a pin. The support column can be adjusted in stages by connecting the horizontal steel pipe to different adjusting pin holes. The height of each adjustment stage is consistent with the distance between adjacent adjusting pin holes.
[0009] Preferably, the distance between adjacent adjusting pin holes is 5-10 cm.
[0010] Preferably, the number of adjusting pin holes provided on the support column along the vertical direction is not less than 3, and the axes of each adjusting pin hole are coplanar and parallel to the axis of the support column.
[0011] Preferably, the pull-out force of the pin is not less than 3kN, and the clearance between the pin and the pin hole is not greater than 0.5mm.
[0012] Preferably, the supporting rectangular tube is fixed to the horizontal steel tube by welding, and a continuous fillet weld is formed at the weld, and the thickness of the fillet weld is not less than 6mm.
[0013] Preferably, the included angle between the supporting rectangular tube and the horizontal steel tube is in the range of 45° to 75°, and the height adjustment range of the supporting upright is 0.5m to 2.5m.
[0014] Preferably, it also includes an auxiliary support vertical rod, wherein the lower surface of the horizontal steel pipe is provided with upper insertion holes spaced apart along the axial direction, and the support rectangular tube is provided with lower insertion holes corresponding to the upper insertion holes, and the two ends of the auxiliary support vertical rod are respectively inserted into the corresponding upper insertion holes and lower insertion holes.
[0015] Preferably, the disc buckle is formed by stamping steel plate, the casting head is formed by die casting of cast steel, and the horizontal steel pipe, supporting rectangular tube, supporting upright and auxiliary supporting vertical rod are all made of Q345B steel.
[0016] Preferably, the outer surfaces of the horizontal steel pipe, the supporting rectangular tube, the supporting uprights and the auxiliary supporting verticals are all hot-dip galvanized, with an average zinc layer thickness of not less than 85 μm and a local thickness of not less than 70 μm.
[0017] Preferably, the coaxiality deviation between the casting head and the horizontal steel pipe during welding is no greater than 0.5°.
[0018] The beneficial effects of this utility model are:
[0019] This utility model provides an adjustable triangular brace for a disc-lock support frame. Several adjusting pin holes are arranged vertically on the support upright. Through cooperation with horizontal steel pipe pins, a highly efficient, tiered height adjustment mechanism is constructed. The 5-10cm spacing between adjacent pin holes and the configuration of at least three holes ensure precise and controllable adjustment while achieving a wide adjustment range of 0.5m to 2.5m. Without requiring overall disassembly and modification of the triangular brace, it can quickly adapt to the height requirements of different work surfaces in various processes such as main construction and exterior wall decoration. This completely solves the problem of wasted manpower and time caused by repeated disassembly and reassembly due to the limited adjustment of traditional welded fixed triangular braces. Simultaneously, the axes of all adjusting pin holes are coplanar and parallel to the axis of the support upright, ensuring that the force direction of the horizontal steel pipe and the support upright is consistent after adjustment. This maintains the stability of the triangular support structure while allowing for flexible adjustment, achieving a balance between efficient adaptation and reliable safety. Attached Figure Description
[0020] Figure 1 This is a schematic diagram showing the usage state of an adjustable triangular brace for a disc buckle support frame according to Embodiment 1 of this utility model.
[0021] Figure 2 This is a schematic diagram of the adjustable triangular brace for a disc buckle support frame according to Embodiment 1 of this utility model.
[0022] In the diagram: 1. Horizontal steel pipe; 11. Casting head; 12. Connecting pin hole; 13. Upper insertion hole; 2. Supporting rectangular tube; 21. Lower insertion hole; 3. Supporting upright; 31. Adjusting pin hole; 4. Scaffold upright; 41. Disc buckle; 5. Auxiliary support vertical bar; 6. Weld.
[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. 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] Example 1
[0026] like Figure 1 and 2As shown, an adjustable triangular brace for a scaffold support frame with a disc buckle 41 includes: a horizontal steel pipe 1, a supporting rectangular tube 2, and a supporting upright 3; one end of the horizontal steel pipe 1 is provided with a casting head 11, which is pinned to the disc buckle 41 of the scaffold upright 4 through the casting head 11, and the other end of the horizontal steel pipe 1 is provided with a connecting pin hole 12, which is detachably connected to the supporting upright 3 through a pin; the supporting rectangular tube 2 is arranged at an inclination, and one end of it is connected to the disc buckle 41 of the scaffold upright 4 through the pin hole, and the other end is connected to the horizontal steel pipe 1 to form a triangular support structure;
[0027] The support pole 3 is provided with several adjusting pin holes 31 along the vertical direction. The connecting pin hole 12 of the horizontal steel pipe 1 is connected to the adjusting pin hole 31 by a pin. The support pole 3 achieves graded height adjustment by connecting the horizontal steel pipe 1 to different adjusting pin holes 31. The height adjustment of each grade is consistent with the distance between adjacent adjusting pin holes 31.
[0028] It should be noted that the horizontal steel pipe 1, as a key component for connection and force transmission, has a cast head 11 at one end, which is pinned to the disc buckle 41 of the scaffold upright 4 via a pin, thus achieving a stable connection between the triangular brace and the main body of the scaffold. The other end has a connecting pin hole 12, which is detachably connected to the support upright 3 via a pin, facilitating assembly and subsequent adjustment. The support rectangular tube 2 is arranged at an angle, with one end connected to the disc buckle 41 of the scaffold upright 4 via a pin hole, and the other end connected to the horizontal steel pipe 1. The three together form a triangular support structure, utilizing the geometric stability of the triangle to enhance the overall structure's resistance to lateral displacement. The support upright 3 has several adjusting pin holes 31 along the vertical direction. The connecting pin holes 12 of the horizontal steel pipe 1 are pinned to the adjusting pin holes 31 of different heights via pins, allowing the support upright 3 to achieve graded height adjustment through this pin connection method. The spacing between each adjustment height and the adjacent adjusting pin holes 31 remains consistent, thus flexibly adapting to the height requirements of different construction scenarios.
[0029] The distance between adjacent adjusting pin holes 31 is 5-10cm.
[0030] It should be noted that the 5-10cm spacing between adjacent adjusting pin holes 31 is a core design element of this utility model for achieving graded height adjustment. This spacing range is set based on the dual requirements of adjustment accuracy and construction efficiency in building construction: a 5-10cm spacing range avoids the problems of complex processing and cumbersome adjustment steps caused by excessively small spacing, while also preventing the spacing from being too large to meet the needs of fine height adjustments during construction (such as adapting the spacing of the exterior wall decoration operation surface). It can flexibly cope with the diverse requirements for the height of the triangular brace in different scenarios such as main construction and edge protection, ensuring adjustment accuracy. While providing convenience, it also provides a foundation for the overall structural stability. Specifically, the 5-10cm spacing allows the support poles 3 to form multi-level adjustment nodes within a total adjustment range of 0.5m to 2.5m (e.g., 10 levels of adjustment can be achieved with a 5cm spacing). This not only meets the precise adaptation of the operating surface height in different processes such as main construction and decoration (e.g., a building with a floor height of 3m can achieve a 60cm height fine adjustment through a 5cm spacing), but also avoids the "one-step" adjustment defects caused by the large span of traditional fixed spacing (e.g., 0.6m disc buckle 41 node spacing).
[0031] The number of adjustment pin holes 31 provided on the support column 3 along the vertical direction is not less than 3, and the axes of each adjustment pin hole 31 are coplanar and parallel to the axis of the support column 3.
[0032] It should be noted that the coplanarity of the axes ensures that all pin holes are in the same plane, avoiding torsional forces caused by misalignment of the pin holes when the horizontal steel pipe 1 and the support pole 3 are connected by pins; the parallelism of the axis to the pole axis ensures that the force direction of the pin is consistent with the bearing direction of the support pole 3, preventing lateral torque caused by the offset of the pin hole axis, ensuring smooth load transfer, avoiding pin deformation or bending of the support pole 3, and laying the foundation for the stable force bearing of the triangular support structure.
[0033] The pull-out force of the pin is not less than 3kN, and the clearance between the pin and the pin hole is not greater than 0.5mm.
[0034] It should be noted that the pin, as a core component of key connection nodes such as the horizontal steel pipe 1 and the support pole 3, and the casting head 11 and the scaffold pole 4 disc buckle 41, must bear the loads transmitted by the triangular bracing structure during construction (such as personnel work loads, lateral wind loads, etc.). Sufficient pull-out force can effectively prevent the pin from accidentally falling off under stress, ensuring the overall stability of the structure from the perspective of connection strength, and avoiding the risk of support loosening or collapse due to pin failure. The 0.5mm gap design can significantly reduce the relative shaking between the pin and the pin hole, ensuring that the connection parts of the horizontal steel pipe 1 and the support pole 3, and the casting head 11 and the disc buckle 41 form a rigid connection, avoiding the force transmission path deviation or local stress concentration caused by excessive gap, while reducing wear caused by shaking during long-term use, ensuring the smoothness of load transmission from the perspective of connection accuracy, and maintaining the stable stress state of the triangular bracing structure.
[0035] The supporting rectangular tube 2 is fixed to the horizontal steel pipe 1 by welding, and a continuous fillet weld 6 is formed at the weld, and the thickness of the fillet weld 6 is not less than 6mm.
[0036] It should be noted that welding forms an integral load-bearing unit between the supporting rectangular tube 2 and the horizontal steel pipe 1, ensuring that the inclined supporting rectangular tube 2 can effectively transfer the load to the horizontal steel pipe 1, providing a foundation for the stability of the triangular support. The continuous weld 6 avoids the weak points that may be caused by the intermittent weld 6, ensuring that the welded part can evenly bear the combined loads such as tensile and shear forces in the triangular support structure, preventing cracking of the weld 6 due to local stress concentration. The thickness of the fillet weld 6 is not less than 6mm, ensuring that the weld 6 has sufficient load-bearing capacity to meet the load transfer requirements of personnel operation and material stacking in construction, avoiding connection failure due to excessively thin weld 6, thereby ensuring the reliability of the connection between the supporting rectangular tube 2 and the horizontal steel pipe 1, and maintaining the overall rigidity and stability of the triangular support structure.
[0037] The included angle between the supporting rectangular tube 2 and the horizontal steel pipe 1 is in the range of 45° to 75°, and the height adjustment range of the supporting upright 3 is 0.5m to 2.5m.
[0038] It should be noted that the included angle range has been verified through mechanical analysis. It can utilize the stability of the triangle to evenly transfer the lateral load to the horizontal steel pipe 1 and the supporting upright 3 (avoiding excessive axial force on the supporting rectangular pipe 2 due to an excessively small angle, or excessive bending overload on the horizontal steel pipe 1 due to an excessively large angle). It can also adapt to the spacing requirements between the scaffold upright 4 and the working surface. In scenarios such as main construction and edge protection, it can ensure a smooth load transfer path and reduce local stress concentration. The height adjustment range covers the common working surface height requirements in building construction (such as 0.5m for low-rise edge protection, 1.5m for exterior wall decoration, and 2.5m for main construction). Combined with the graded design of the adjustment pin holes 31 on the supporting upright 3 (adjacent spacing 5-10cm, number no less than 3), it can achieve precise height adaptation. It can meet the needs of multiple scenarios without the need for overall disassembly and modification of the triangular bracing, solving the problem of frequent disassembly and assembly caused by the poor height adaptability of traditional fixed triangular bracing.
[0039] It also includes an auxiliary support vertical rod 5. The lower surface of the horizontal steel pipe 1 is provided with upper insertion holes 13 spaced apart along the axial direction. The support rectangular tube 2 is provided with lower insertion holes 21 corresponding to the upper insertion holes 13. The two ends of the auxiliary support vertical rod 5 are respectively inserted into the corresponding upper insertion holes 13 and lower insertion holes 21.
[0040] It should be noted that the auxiliary support vertical rod 5 is a supplementary reinforcing component to the original triangular support structure. Its installation relies on the corresponding insertion holes on the horizontal steel pipe 1 and the supporting rectangular tube 2, ensuring that the auxiliary support vertical rod 5 can connect the two vertically or nearly vertically, forming a secondary support structure of "horizontal steel pipe 1 - auxiliary support vertical rod 5 - supporting rectangular tube 2". Furthermore, by adding the auxiliary support vertical rod 5, the vertical load on the horizontal steel pipe 1 (such as the weight of construction personnel and materials) is further distributed, and the bending deformation of the supporting rectangular tube 2 caused by tilting forces is reduced, improving the overall structure's resistance to lateral displacement and deformation. At the same time, the plug-in connection method retains a certain degree of detachability, not affecting the height adjustment function of the horizontal steel pipe 1 and the supporting vertical rod 3, and allowing for flexible installation or removal of the auxiliary support vertical rod 5 according to construction load requirements. This enhances stability while maintaining flexibility, making the triangular brace more suitable for construction scenarios with large load variations (such as protective support in material stacking areas).
[0041] The disc buckle 41 is formed by stamping steel plate, the casting head 11 is formed by die casting of cast steel, and the horizontal steel pipe 1, the supporting rectangular tube 2, the supporting upright 3 and the auxiliary supporting vertical rod 5 are all made of Q345B steel.
[0042] It should be noted that steel plate stamping ensures the dimensional accuracy and structural consistency of the disc buckle 41, improving mass production efficiency. Simultaneously, the stamped disc buckle 41 possesses high structural strength, stably bearing the load transmitted by the pins and ensuring a reliable connection with the scaffold uprights 4. Cast steel material boasts high strength and good toughness, and the die-casting process can precisely form the complex structure of the casting head 11 (such as pin holes to accommodate the pins), ensuring dimensional compatibility between its welding to the horizontal steel pipe 1 and its pin connection to the disc buckle 41, providing a rigid foundation for the connection between the triangular brace and the main scaffold body. Q345B steel has high yield strength (≥345MPa) and good weldability, meeting the mechanical requirements of the triangular brace when bearing construction loads (such as personnel operations and material stacking), ensuring that each component is not easily deformed or broken during load transmission, providing material-level protection for the overall structure's load-bearing capacity. By utilizing the synergy of material selection and processing technology, both the structural accuracy and connection reliability of key components are ensured, and the high-strength materials meet the stress requirements of the triangular brace, laying the foundation for its stable application in various construction scenarios.
[0043] The outer surfaces of the horizontal steel pipe 1, the supporting rectangular pipe 2, the supporting upright 3, and the auxiliary supporting vertical rod 5 are all hot-dip galvanized. The average thickness of the zinc layer in the hot-dip galvanized layer is not less than 85 μm, and the local thickness is not less than 70 μm.
[0044] It should be noted that the hot-dip galvanizing process can form a tightly adhered zinc layer on the surface of the component. Through the sacrificial anode protection mechanism, it can effectively isolate the steel from air, moisture and corrosive media in the construction environment (such as rainwater, concrete curing water, dust, etc.), preventing the steel from rusting. It is especially suitable for complex scenarios such as open-air construction and humid environments, and can extend the service life of the component.
[0045] The coaxiality deviation between the casting head 11 and the horizontal steel pipe 1 during welding shall not exceed 0.5°.
[0046] It should be noted that the casting head 11, as the core component connecting the horizontal steel pipe 1 and the scaffolding upright 4 disc buckle 41, directly affects the smoothness of load transfer due to its welded coaxiality with the horizontal steel pipe 1. A coaxiality deviation of no more than 0.5° ensures that the axes of the casting head 11 and the horizontal steel pipe 1 remain highly aligned after welding, preventing torsional stress or additional torque at the connection point due to axial misalignment. Excessive deviation will cause the pin to deviate from its designed axis when connecting to the disc buckle 41, resulting in localized stress concentration at the gap between the pin and the pin hole. Long-term use may lead to pin deformation and cracking of the casting head 11.
[0047] The working principle and usage method of an adjustable triangular brace for a disc buckle 41 support frame in this embodiment:
[0048] This embodiment provides an adjustable triangular brace for a disc-lock 41 support frame. The horizontal steel pipe 1 serves as the core load-bearing component. One end is connected to the disc-lock 41 of the scaffold upright 4 via a cast head 11, forming a pin connection. The detachable nature of the pin ensures a stable connection between the triangular brace and the scaffold body, while also facilitating subsequent disassembly and relocation. The other end of the horizontal steel pipe 1 is connected to the support upright 3 via a pin. This connection is not fixed but allows for flexible adjustment via adjustable pin holes 31 set vertically on the support upright 3. By selecting pin holes of different heights for connection, the relative position of the horizontal steel pipe 1 and the support upright 3 can be changed, thereby adjusting the overall height of the triangular brace without disassembling and reassembling the entire structure, significantly improving the ease of adaptation to different scenarios. The inclined arrangement of the support rectangular tube 2 is crucial for forming a stable triangular structure. One end is connected to the disc-lock 41 of the scaffold upright 4, and the other end is fixedly connected to the horizontal steel pipe 1. Together, these three components form a triangular load-bearing system. Utilizing the geometric stability of the triangle, various loads generated during construction (such as personnel operations) can be absorbed. The load (pressure, weight of stacked materials, lateral wind load, etc.) is effectively decomposed and transmitted to the scaffolding uprights 4 through the horizontal steel pipe 1 and the supporting rectangular pipe 2, avoiding deformation or damage to local components due to concentrated stress and ensuring the overall structural load-bearing safety. The auxiliary supporting vertical rod 5 further enhances the stability of the structure. The corresponding insertion holes on the lower surface of the horizontal steel pipe 1 and the supporting rectangular pipe 2 provide precise connection points for the auxiliary supporting vertical rod 5, enabling them to connect vertically or nearly vertically to form a secondary support structure. This not only disperses the vertical load on the horizontal steel pipe 1 and reduces the risk of bending deformation of the supporting rectangular pipe 2, but also allows for flexible assembly and disassembly according to the actual changes in the construction load, enhancing stability while maintaining flexibility in use.
[0049] In use, firstly, align the cast head 11 at one end of the horizontal steel pipe 1 with the disc buckle 41 of the scaffold upright 4, and insert the pin to fix the two together, thus completing the connection between the triangular brace and the main body of the scaffold. Next, according to the required working surface height, align the connecting pin hole 12 at the other end of the horizontal steel pipe 1 with the corresponding height adjustment pin hole 31 on the support upright 3, and insert the pin to achieve a detachable connection. If the height needs to be adjusted, simply pull out the pin and change the pin hole position. Subsequently, connect one end of the support rectangular tube 2 to the disc buckle 41 of the scaffold upright 4 through the pin hole. Since the other end is already welded and fixed to the horizontal steel pipe 1, the horizontal steel pipe 1, the support rectangular tube 2, and the scaffold upright 4 form a stable triangular support structure. If the construction load is large, the two ends of the auxiliary support vertical rod 5 can be inserted into the upper insertion hole 13 on the lower surface of the horizontal steel pipe 1 and the corresponding lower insertion hole 21 on the support rectangular tube 2, respectively, to enhance the overall stability. During dismantling, operate in reverse order, pulling out each pin in turn to complete the dismantling, which facilitates the reuse of components. No overall dismantling or modification is required throughout the process, making it suitable for various scenarios such as main construction and exterior wall decoration.
[0050] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is used only to illustrate the technical solution of this utility model, and is not intended to limit the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the protection scope of this utility model.
[0051] In the description of this utility model, it should be understood that the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. An adjustable triangular brace for a disc buckle (41) support frame, comprising: The system comprises a horizontal steel pipe (1), a supporting rectangular tube (2), and a supporting upright (3); one end of the horizontal steel pipe (1) is provided with a casting head (11), which is pinned to the disc buckle (41) of the scaffold upright (4) through the casting head (11), and the other end of the horizontal steel pipe (1) is provided with a connecting pin hole (12), which is detachably connected to the supporting upright (3) through a pin; the supporting rectangular tube (2) is arranged at an incline, and one end of it is connected to the disc buckle (41) of the scaffold upright (4) through a pin hole, and the other end is connected to the horizontal steel pipe (1) to form a triangular support structure; its characteristic is that: The support pole (3) is provided with several adjusting pin holes (31) along the vertical direction. The connecting pin hole (12) of the horizontal steel pipe (1) is connected to the adjusting pin hole (31) by a pin. The support pole (3) achieves graded height adjustment by connecting the horizontal steel pipe (1) to different adjusting pin holes (31). The height adjustment of each level is consistent with the distance between adjacent adjusting pin holes (31).
2. The adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The distance between adjacent adjusting pin holes (31) is 5-10cm.
3. The adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The number of adjustment pin holes (31) provided on the support rod (3) along the vertical direction is not less than 3, and the axes of each adjustment pin hole (31) are coplanar and parallel to the axis of the support rod (3).
4. The adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The pull-out force of the pin is not less than 3kN, and the clearance between the pin and the pin hole is not greater than 0.5mm.
5. An adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The supporting rectangular tube (2) is fixed to the horizontal steel pipe (1) by welding, and a continuous fillet weld (6) is formed at the weld, and the thickness of the fillet weld (6) is not less than 6mm.
6. The adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The included angle between the supporting rectangular tube (2) and the horizontal steel pipe (1) is 45° to 75°, and the height adjustment range of the supporting upright (3) is 0.5m to 2.5m.
7. An adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: It also includes an auxiliary support vertical rod (5). The lower surface of the horizontal steel pipe (1) is provided with upper insertion holes (13) spaced apart along the axial direction. The support rectangular tube (2) is provided with lower insertion holes (21) corresponding to the upper insertion holes (13). The two ends of the auxiliary support vertical rod (5) are respectively inserted into the corresponding upper insertion holes (13) and lower insertion holes (21).
8. An adjustable triangular brace for a disc buckle (41) support frame as described in claim 7, characterized in that: The disc buckle (41) is formed by stamping steel plate, the casting head (11) is formed by die casting of cast steel, and the horizontal steel pipe (1), the supporting rectangular tube (2), the supporting upright (3) and the auxiliary supporting vertical rod (5) are all made of Q345B steel.
9. An adjustable triangular brace for a disc buckle (41) support frame as described in claim 7, characterized in that: The outer surfaces of the horizontal steel pipe (1), the supporting rectangular pipe (2), the supporting upright (3) and the auxiliary supporting vertical rod (5) are all hot-dip galvanized. The average thickness of the hot-dip galvanized zinc layer is not less than 85μm, and the local thickness is not less than 70μm.
10. An adjustable triangular brace for a disc buckle (41) support frame as described in claim 1, characterized in that: The coaxiality deviation of the casting head (11) and the horizontal steel pipe (1) during welding shall not exceed 0.5°.