Multifunctional super-high formwork support rod conversion device

Abstract

The utility model discloses a kind of multifunctional superhigh formwork support rod piece conversion device, it is related to building construction technology field.Multifunctional superhigh formwork support rod piece conversion device, including inclined strut base and square beam, first connecting piece for being connected with inclined strut rod is equipped on inclined strut base, inclined strut rod is used to support formwork, inclined strut base is detachably connected with square beam, square beam is equipped with second connecting piece, second connecting piece is used to be connected with scaffold vertical pole assembly, the conversion device is used as the connection conversion intermediate body of inclined strut rod and scaffold vertical pole assembly.After the structure of the utility model is used, the device of inclined strut base and square beam can be installed on the position of different height of scaffold according to demand and specific construction condition during construction, then connect inclined strut rod to reduce the length-thinness ratio of inclined strut rod, so as to reach the effect of improving support stability.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a multifunctional ultra-high formwork support rod conversion device. Background Technology

[0002] In the field of building construction, ground-supported diagonal bracing has always played a crucial role in formwork operations involving angled vertical components. Thanks to its structural characteristics, it can effectively resist the downward deflection force generated by the components during construction, while providing solid support and reinforcement for the entire formwork system, making it one of the core measures to ensure the stability of the formwork.

[0003] However, with the continuous development of the modern construction industry, the application of ultra-high-rise vertical structural members with angled bevels is becoming increasingly widespread, and traditional formwork techniques are gradually revealing certain limitations when dealing with such members. During the formwork erection of ultra-high-rise members, the design and installation of diagonal braces face severe challenges due to the significant increase in formwork height. On the one hand, the diagonal braces need to span a greater height, resulting in a significant increase in their length, often making it difficult to find suitable landing support points. On the other hand, excessively long diagonal braces easily cause their slenderness ratio to exceed the critical value of 150. From a mechanical perspective, when the slenderness ratio of a diagonal brace exceeds this value, its load-bearing capacity will decrease significantly, making it unable to properly bear the transmitted load, leading to load failure and loss of its original supporting and reinforcing function.

[0004] In this situation, in order to maintain the basic stability of the formwork system, it is often necessary to rely on the formwork uprights to share the axial force that should have been borne by the diagonal braces during actual construction. However, this method of support will result in an unreasonable overall force distribution of the frame. The main function of the formwork uprights is to bear the vertical load. Forcing them to share the axial force of the diagonal braces will reduce the overall stability and rigidity of the frame, and instability will occur during construction, posing a significant threat to construction safety.

[0005] Therefore, based on the needs of practical engineering applications, it is of great practical significance to develop a multifunctional ultra-high formwork support member conversion device that can effectively solve the problem of excessively long diagonal bracing members, enhance the overall stability of the formwork support frame, and improve the structural quality. Utility Model Content

[0006] This utility model provides a multifunctional ultra-high formwork support member conversion device to address the problem of poor overall stability, low rigidity, and easy instability of the formwork support frame caused by excessively long diagonal bracing members leading to their failure under stress.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A multifunctional ultra-high formwork support member conversion device includes a diagonal brace base and a square tube beam. The diagonal brace base is equipped with a first connector for connecting to the diagonal brace rod, which supports the formwork. The diagonal brace base and the square tube beam are detachably connected. The square tube beam is equipped with a second connector for connecting to the scaffold upright assembly. This conversion device serves as an intermediate body for connecting and converting the diagonal brace rod and the scaffold upright assembly. Through the coordinated work of the diagonal brace base and the square tube beam, this conversion device constructs a force transmission bridge between the diagonal brace rod and the scaffold upright assembly. The first connector, as the connection interface of the diagonal brace rod, directly affects the initial transmission effect of the formwork support force. The detachable connection method gives the device flexibility during construction, facilitating assembly and adjustment according to site requirements. The second connector is a key node for force diffusion to the scaffold upright assembly. The cooperation of these three components makes the force distribution of the entire formwork system more reasonable, changing the limitation of traditional diagonal braces relying on ground support.

[0008] As described above, the multifunctional ultra-high formwork support rod conversion device includes a connecting part at the inclined brace base and a connecting groove on the square tube beam. The connecting part and the connecting groove are detachably connected. The cooperation between the connecting part and the connecting groove is the core structure for achieving a detachable connection between the inclined brace base and the square tube beam. The connecting part, as an extension of the inclined brace base, has a shape and size that can match the connecting groove and allow it to be embedded within it. The connecting groove provides a stable installation space for the connecting part. This detachable feature not only facilitates rapid assembly during construction but also reduces operational difficulty during device maintenance or component replacement. Furthermore, it allows for flexible adjustment of the fixed position of the inclined brace base on the square tube beam according to changes in the position of the formwork support point, improving the adaptability of the device.

[0009] As described above, the multifunctional ultra-high formwork support rod conversion device includes a connecting groove comprising a first diameter section and a second diameter section. The connecting groove transitions from a larger diameter in the first diameter section to a smaller diameter in the second diameter section. The connecting part can be inserted into the first diameter section and slid until it is fixed in the second diameter section. The gradually changing diameter design of the connecting groove ensures connection stability and ease of operation. The large size of the first diameter section provides ample space for the insertion of the connecting part, effectively reducing the alignment difficulty during installation and enabling construction personnel to quickly complete the initial installation. Furthermore, as the connecting part slides towards the second diameter section, the gradually decreasing diameter generates a squeezing force that firmly fixes the connecting part, forming a reliable mechanical locking effect. This prevents loosening of the connection due to vibration, load changes, or other factors during construction, ensuring the continuity and stability of force transmission.

[0010] As described above, the multifunctional ultra-high formwork support rod conversion device includes a first engaging part and a second engaging part in its connecting portion. The first engaging part and the second engaging part are fixedly connected. The first engaging part is coaxially positioned below the second engaging part. The first diameter part is non-interference-fitted with the first engaging part and can be inserted from the first diameter part. The second diameter part is transition-fitted with the second engaging part. This design of dual engaging parts and corresponding diameter parts further ensures the reliability of the connection and ease of operation. The non-interference-fitted connection between the first engaging part and the first diameter part reduces frictional resistance during insertion, making the installation process smoother and less strenuous. The transition-fitted connection between the second engaging part and the second diameter part ensures a tight connection while avoiding the disassembly difficulties caused by interference fits. The coaxial arrangement ensures that no eccentric moment is generated when the connecting part is under force, allowing the force to be stably transmitted along the axial direction and reducing the risk of local stress concentration.

[0011] As described above, the multifunctional ultra-high formwork support rod conversion device uses round steel for both the first and second engaging parts. The diameter of the first engaging part is 40-60mm, and the diameter of the first aperture part is greater than the maximum diameter of the first engaging part. Using round steel as the material for the first and second engaging parts provides them with the excellent mechanical properties and ease of processing. Its uniform cross-sectional characteristics ensure the stability of the device under stress, preventing connection failure due to localized deformation. The 40-60mm diameter range of the first engaging part satisfies the connection strength requirements and creates a reasonable fit clearance with the connecting groove. The design of the first aperture part having a diameter greater than the maximum diameter of the first engaging part provides tolerance for dimensional errors during construction. Even with slight processing deviations in the first engaging part and the first aperture part, smooth insertion of the first engaging part is ensured, improving the practicality of the device.

[0012] As described above, the multifunctional ultra-high formwork support rod conversion device includes a base plate and a pair of ear plates fixedly connected to the base plate. The first connector is detachably connected to the ear plates. The base plate provides a solid load-bearing foundation for the diagonal brace base, and can evenly distribute the force transmitted by the diagonal brace rod, preventing excessive local stress and deformation of the diagonal brace base. The pair of ear plates symmetrically fixed to the base plate form a stable support frame and provide an installation platform for the first connector. The detachable connection between the first connector and the ear plates allows for quick replacement when the first connector is worn or needs to be adapted to different specifications of diagonal brace rods, without the need for complete disassembly and replacement of the diagonal brace base, reducing equipment maintenance costs and improving the versatility of the device.

[0013] As described above, the multifunctional ultra-high formwork support rod conversion device includes a rotating part on the first connecting member and a pair of symmetrically arranged ear plates. Each ear plate has an opening, and the rotating part engages with the opening, allowing it to rotate around an axis within the opening. A diagonal brace is sleeved on the first connecting member. This rotating engagement structure between the rotating part and the opening provides the diagonal brace with an adjustable angle, enabling it to flexibly adjust according to the inclination angle and force direction of the formwork, ensuring it always provides support at the optimal angle and improving its support efficiency. The symmetrically arranged ear plates ensure the balance of force on the rotating part, preventing wear due to unilateral force. Furthermore, the sleeved connection method used for the diagonal brace on the first connecting member makes operation relatively simple and easy for operators, and ensures a firm connection between the diagonal brace and the first connecting member, capable of withstanding large axial and radial forces and preventing the diagonal brace from falling off during construction.

[0014] As described above, the multifunctional ultra-high formwork support rod conversion device uses galvanized steel plates with a thickness of 6-10mm for both the base plate and the ear plate, and the first connecting member is made of plain round steel bar with a diameter of 10-30mm. The 6-10mm thick galvanized steel plate combines strength and corrosion resistance. The galvanized layer effectively resists corrosion from moisture, dust, and other elements in the construction environment, extending the device's service life. The rigidity of the steel plate ensures that the base plate and ear plate are not easily deformed under stress. The smooth surface of the first connecting member made of plain round steel bar facilitates the connection and installation of the diagonal bracing rod. The 10-30mm diameter range of the plain round steel bar can accommodate diagonal bracing rods of different diameters, meeting diverse construction needs. Simultaneously, the toughness of the plain round steel bar provides some buffering under stress, reducing the risk of brittle fracture.

[0015] As described above, the multifunctional ultra-high formwork support member conversion device includes a square tube beam with multiple second connectors and a scaffold upright assembly with multiple uprights. The spacing between two second connectors is an integer ratio to the spacing between two uprights. The multiple second connectors create multi-point connections between the square tube beam and the scaffold upright assembly, significantly improving the overall structural stability and load-bearing capacity of the device and avoiding the risk of overturning that may occur with single-point connections. The integer-ratio spacing design allows the square tube beam to adapt to scaffolding systems with different upright spacings, eliminating the need to modify existing scaffolding, reducing construction costs and time, and enhancing the device's applicability in various engineering scenarios.

[0016] As described above, the multifunctional ultra-high formwork support rod conversion device uses a rectangular square steel beam with a side length of 80-100mm and a wall thickness of 8-12mm as the crossbeam. The second connector has an inner diameter of 40-60mm, a wall thickness of 2-5mm, and a height of 150-250mm. The 80-100mm rectangular square steel with a wall thickness of 8-12mm has high bending and torsional strength, enabling it to stably bear the load transmitted by the inclined brace base and evenly distribute it to each of the second connectors. The dimensional parameters of the second connector match the common specifications of the scaffold uprights. The 40-60mm inner diameter of the second connector ensures a tight fit with the uprights, while the 2-5mm wall thickness and 150-250mm height of the second connector ensure the strength and stability of its connection with the scaffold upright assembly, allowing force to be effectively transmitted to the scaffold upright assembly and ensuring the safety and reliability of the entire formwork system.

[0017] Compared with existing technologies, the beneficial effects of this technical solution are as follows: With the structure of this utility model, when installing the diagonal bracing for ultra-high formwork, first install the diagonal bracing base together with the square tube beam, then connect the installed device to the scaffold upright assembly through the second connector, and finally connect the diagonal bracing to the first connector to complete the entire installation. During construction, the device consisting of the diagonal bracing base and the square tube beam can be installed at different heights on the scaffold according to the needs and specific construction conditions, and then the diagonal bracing is connected to reduce the slenderness ratio of the diagonal bracing, thereby achieving the effect of improving the stability of the support.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of the inclined support base of this utility model; Figure 2 This is a top view of the inclined support base of this utility model; Figure 3 This is a front view of the square tube crossbeam of this utility model; Figure 4 This is a top view of the square tube crossbeam of this utility model; Figure 5This is a left view of the square tube crossbeam of this utility model; Figure 6 This is a schematic diagram illustrating the use of this utility model; Figure 7 yes Figure 6 A partial view in A. Detailed Implementation

[0021] 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.

[0022] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this application, unless they actually express the meaning of order according to the context, they should be understood as being used only for distinction.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] Example: This embodiment discloses a multifunctional ultra-high formwork support member conversion device, relating to the field of building construction technology. The multifunctional ultra-high formwork support member conversion device includes a diagonal brace base 1 and a square tube beam 2. The diagonal brace base 1 is provided with a first connector 11 for connecting to a diagonal brace rod, which supports the formwork. The diagonal brace base 1 and the square tube beam 2 are detachably connected. The square tube beam 2 is provided with a second connector 21 for connecting to a scaffold upright assembly 3. This conversion device serves as an intermediate body for connecting and converting the diagonal brace rod and the scaffold upright assembly 3. Through the coordinated work of the diagonal brace base 1 and the square tube beam 2, this conversion device constructs a force transmission bridge between the diagonal brace rod and the scaffold upright assembly 3. The first connector 11 serves as the connection interface for the diagonal brace, directly affecting the initial transmission effect of the formwork support force. The detachable connection method provides flexibility during construction, facilitating assembly and adjustment according to site requirements. The second connector 21 is a key node for force diffusion to the scaffold upright assembly 3. The cooperation of these three components makes the force distribution of the entire formwork support system more reasonable, overcoming the limitations of traditional diagonal braces that rely on ground support. With this invention, when installing ultra-high formwork diagonal braces, first install the diagonal brace base 1 and the square tube beam 2 together, then connect the installed device to the scaffold upright assembly 3 via the second connector 21, and finally connect the diagonal brace to the first connector 11 to complete the installation. During construction, the device consisting of the diagonal brace base 1 and the square tube beam 2 can be installed at different heights on the scaffold according to requirements and specific construction conditions, and then the diagonal brace can be connected to reduce its slenderness ratio, thereby improving support stability. This segmented force transmission structure effectively avoids the stress failure problem caused by the slenderness ratio of traditional ultra-long diagonal braces exceeding 150, making the stress on the frame more in line with engineering mechanics specifications.

[0025] Optionally, the first connector 11 is configured as a built-in pin, and the second connector 21 is configured as a sleeve. The built-in pin is made of φ20 plain round steel bar, and the sleeve is made of steel material with a wall thickness of 3mm. Both are rust-proofed to adapt to the complex environment in building construction.

[0026] Furthermore, the inclined support base 1 includes a connecting part 12, and the square tube beam 2 is provided with a connecting groove 22. The connecting part 12 and the connecting groove 22 are detachably connected. The cooperation between the connecting part 12 and the connecting groove 22 is the core structure for achieving a detachable connection between the inclined support base 1 and the square tube beam 2. As an extension of the inclined support base 1, the connecting part 12 is shaped and sized to fit into the connecting groove 22, while the connecting groove 22 provides a stable installation space for the connecting part 12. The detachable nature of both facilitates rapid assembly during construction and reduces operational difficulty during device maintenance or component replacement. It also allows for flexible adjustment of the fixed position of the inclined support base 1 on the square tube beam 2 according to changes in the position of the formwork support point, improving the adaptability of the device. The fitting accuracy between the connecting part 12 and the connecting groove 22 is controlled within ±1mm, ensuring both tightness of the connection and providing reasonable space for installation and adjustment during construction.

[0027] Furthermore, the connecting groove 22 includes a first diameter portion 221 and a second diameter portion 222. The connecting groove 22 transitions from the larger diameter of the first diameter portion 221 to the smaller diameter of the second diameter portion 222. The connecting part 12 can be inserted into the first diameter portion 221 and slid until it is fixed in the second diameter portion 222. The gradually changing diameter design of the connecting groove 22 ensures connection stability and ease of operation. The large size of the first diameter portion 221 provides ample space for the insertion of the connecting part 12, effectively reducing the alignment difficulty during installation and enabling construction personnel to quickly complete the initial installation. As the connecting part 12 slides towards the second diameter portion 222, the gradually decreasing diameter generates a squeezing force that firmly fixes the connecting part, forming a reliable mechanical locking effect. This prevents loosening of the connection due to vibration, load changes, or other factors during construction, ensuring the continuity and stability of force transmission. In one embodiment, this gradient groove structure has been verified through multiple mechanical tests to maintain connection stability even when subjected to large axial forces, thus meeting the stress requirements of ultra-high formwork.

[0028] Furthermore, the connecting portion 12 includes a first engaging portion 121 and a second engaging portion 122. The first engaging portion 121 and the second engaging portion 122 are fixedly connected. The first engaging portion 121 is coaxially positioned below the second engaging portion 122. The first diameter portion 221 is non-interference-fitted with the first engaging portion 121 and can be inserted through the first diameter portion 221. The second diameter portion 222 is transition-fitted with the second engaging portion 122. This design of double engaging portions and corresponding diameter portions further ensures the reliability of the connection and ease of operation. The non-interference-fitted connection between the first engaging portion 121 and the first diameter portion 221 reduces frictional resistance during insertion, making the installation process smoother and less strenuous. The transition-fitted connection between the second engaging portion 122 and the second diameter portion 222 ensures a tight connection while avoiding the disassembly difficulties caused by interference fits. The coaxial arrangement ensures that no eccentric torque is generated when the connecting portion is under force, allowing the force to be stably transmitted along the axial direction and reducing the risk of local stress concentration. The first engaging part 121 and the second engaging part 122 are fixedly connected by welding. The welding strength is not lower than the strength of the base material, and the axial deviation is controlled within 0.5 mm per meter to ensure the straightness of the force transmission path.

[0029] Furthermore, the first engaging portion 121 and the second engaging portion 122 are made of round steel. The diameter of the first engaging portion 121 is 40-60mm, and the diameter of the first diameter portion 221 is greater than the maximum diameter of the first engaging portion 121. Using round steel as the material for the first engaging portion 121 and the second engaging portion 122 gives them the excellent mechanical properties and ease of processing of round steel. Their uniform cross-sectional characteristics ensure the stability of the device under stress and prevent connection failure due to local deformation. The 40-60mm diameter range of the first engaging portion 121 satisfies the connection strength requirements and forms a reasonable fitting clearance with the connecting groove 22. The design that the diameter of the first diameter portion 221 is greater than the maximum diameter of the first engaging portion 121 provides tolerance for dimensional errors during construction. Even if there are slight processing deviations in the processing of the first engaging portion 121 and the first diameter portion 221, it can still ensure that the first engaging portion 121 is smoothly inserted, improving the practicality of the device. Optionally, the round steel is made of Q235 material with a yield strength ≥235MPa. After quenching and tempering, the surface roughness is controlled within Ra12.5 to reduce frictional resistance during insertion.

[0030] Furthermore, the inclined support base 1 is provided with a base plate 13 and a pair of ear plates 14 fixedly connected to the base plate 13. The first connecting member 11 is detachably connected to the ear plates 14. The base plate 13 provides a solid load-bearing foundation for the inclined support base 1. The base plate 13 can evenly distribute the force transmitted by the inclined support rod, avoiding excessive local stress on the inclined support base 1 and causing deformation. The pair of ear plates 14 are symmetrically fixed on the base plate 13, forming a stable support frame while providing an installation platform for the first connecting member 11. The detachable connection between the first connecting member 11 and the ear plates 14 allows for quick replacement when the first connecting member 11 is worn or needs to be adapted to different specifications of the inclined support rod, without the need to completely disassemble and replace the entire inclined support base 1, reducing equipment maintenance costs and improving the versatility of the device. In one embodiment, the base plate 13 and the ear plates 14 are manufactured using an integral molding process, avoiding the impact of welding deformation on structural accuracy. The load-bearing capacity of the connection part has been verified by finite element analysis and meets the requirements of the maximum ultimate load.

[0031] Furthermore, the first connecting member 11 is provided with a rotating part 111, and a pair of ear plates 14 are symmetrically arranged. Each ear plate 14 has an opening, and the rotating part 111 engages with the opening and can rotate around an axis within the opening. The diagonal brace is sleeved on the first connecting member 11. The rotating engagement structure between the rotating part 111 and the opening provides the diagonal brace with the function of adjusting its angle, allowing it to be flexibly adjusted according to the inclination angle and force direction of the formwork, ensuring that it always provides support at the optimal angle and improving the support efficiency of the diagonal brace. The symmetrically arranged ear plates 14 ensure the balance of force on the rotating part 111, avoiding wear of the rotating part 111 due to unilateral force. Moreover, the sleeve connection method used for the diagonal brace on the first connecting member 11 makes operation relatively simple and easy for operators, and ensures a firm connection between the diagonal brace and the first connecting member 11, capable of withstanding large axial and radial forces, and preventing the diagonal brace from falling off during construction. Optionally, the fitting clearance between the rotating part 111 and the opening is 0.1-0.3mm, which ensures the flexibility of rotation and avoids shaking caused by excessive clearance. The rotating part 111 has a large rotation angle range and can be adjusted according to needs to meet the formwork requirements of different angled components.

[0032] Furthermore, both the base plate 13 and the ear plate 14 are galvanized steel plates with a thickness of 6-10mm, and the first connecting member 11 is a plain round steel bar with a diameter of 10-30mm. The 6-10mm thick galvanized steel plate combines strength and corrosion resistance. The galvanized layer effectively resists corrosion from moisture, dust, and other elements in the construction environment, extending the service life of the device. The rigidity of the steel plate ensures that the base plate 13 and the ear plate 14 are not easily deformed under stress. The smooth surface of the first connecting member 11, made of plain round steel bar, facilitates the connection and installation of the diagonal brace. The 10-30mm diameter range of the plain round steel bar can accommodate diagonal braces of different diameters, meeting diverse construction needs. Simultaneously, the toughness of the plain round steel bar provides some buffering under stress, reducing the risk of brittle fracture.

[0033] Furthermore, the square tube beam 2 is provided with multiple second connecting members 21, and the scaffold upright assembly 3 is provided with multiple uprights 31. The distance between two second connecting members 21 is an integer ratio to the distance between two uprights 31. The arrangement of multiple second connecting members 21 enables the square tube beam 2 and the scaffold upright assembly 3 to form multi-point connections, significantly improving the stability and load-bearing capacity of the overall structure of the device and avoiding the risk of overturning that may occur with single-point connections. The design that the distance between two second connecting members 21 is an integer ratio to the distance between two uprights 31 allows the square tube beam 2 to adapt to scaffolding systems with different upright 31 spacings, without the need to modify existing scaffolding, reducing construction costs and time, and enhancing the applicability of the device in different engineering scenarios. Optionally, the number of second connecting members 21 is set to 2-5 according to the length of the square tube beam, with the spacing error controlled within ±5mm, and matching the 300mm modular spacing of the disc-lock scaffolding.

[0034] Furthermore, the square tube beam 2 is a rectangular square steel with a side length of 80-100mm and a wall thickness of 8-12mm. The second connecting member 21 has an inner diameter of 40-60mm, a wall thickness of 2-5mm, and a height of 150-250mm. The rectangular square steel with a side length of 80-100mm and a wall thickness of 8-12mm has high bending and torsional strength, which can stably bear the load transmitted by the inclined brace base 1 and evenly distribute it to each of the second connecting members 21. The dimensional parameters of the second connecting member 21 match the common specifications of the scaffolding upright assembly 3. The 40-60mm inner diameter of the second connecting member 21 ensures a tight fit with the upright 31, while the 2-5mm wall thickness of the second connecting member 21 ensures the strength and stability of its connection with the scaffolding upright assembly 3, so that the force can be effectively transmitted to the scaffolding upright assembly 3, ensuring the safety and reliability of the entire formwork support system. In one embodiment, the rectangular square steel is made of Q345 material with a tensile strength of 490-675MPa, and the second connector 21 is welded to the square tube beam 2.

[0035] In one embodiment, the multifunctional ultra-high formwork support rod conversion device includes the inclined brace base 1 and the square tube beam 2. The first connector 11, located on the inclined brace base 1, connects the inclined brace rod, which directly acts on the formwork to provide support. The inclined brace base 1 and the square tube beam 2 are detachably connected. The second connector 21, located on the square tube beam 2, connects to the scaffold upright assembly 3. The entire device acts as an intermediate force transmission and conversion mechanism between the inclined brace rod and the scaffold upright assembly 3, achieving effective force transmission and dispersion. During actual construction and installation, the inclined brace base 1 and the square tube beam 2 are first assembled and fixed. Then, the device is installed at a suitable height on the scaffold upright assembly 3 via the second connector 21. Finally, the inclined brace rod is connected to the first connector 11 to complete the construction of the support system. This embodiment further improves the adaptability of the device in complex construction environments by optimizing the dimensional parameters and connection accuracy of each component, making it particularly suitable for ultra-high formwork scenarios exceeding 15m in height.

[0036] Specifically, but not limitingly, in one embodiment, the first connector 11 is a built-in pin, made of φ25 plain round steel bar with a galvanized surface, and the second connector 21 is a socket-type sleeve, made of seamless steel pipe with a wall thickness of 4mm, and the inner wall of the sleeve is treated with anti-slip texture. The rust-proof and anti-slip design of the built-in pin and sleeve not only extends the service life of the device, but also enhances the friction of the connection parts and reduces relative sliding during construction.

[0037] Furthermore, the scaffolding upright assembly 3 of the inclined brace base 1 and the connecting groove 22 of the square tube beam 2 form a detachable fit. The first engaging part 121 of the scaffolding upright assembly 3 is made of round steel with a diameter of 50mm, and the second engaging part 122 is made of round steel with a diameter of 40mm. The two are fixed by full welding with small axial deviation. The first diameter part 221 of the connecting groove 22 has a diameter of 55mm, and the second diameter part 222 has a diameter of 42mm. The transition section length of the connecting groove 22 from the first diameter part 221 to the second diameter part 222 is 80mm. This size matching controls the fit gap between the first engaging part 121 and the first diameter part 221 to 2-3mm, and the transition fit tolerance between the second engaging part 122 and the second diameter part 222 is H7 / g6, which ensures both smooth installation and structural stability after connection.

[0038] Furthermore, the base plate 13 of the inclined brace base 1 is made of 10mm thick Q235 galvanized steel plate, and the pair of ear plates 14 are 8mm thick. The ear plates 14 are symmetrically welded to both sides of the base plate 13, and the diameter of the opening on the ear plates 14 forms a clearance fit with the rotating part 111 of the first connecting member 11. The enlarged size of the base plate 13 enhances the force distribution effect, and the height design of the ear plates 14 provides sufficient space for the angle adjustment of the inclined brace, avoiding structural interference during the adjustment process.

[0039] Furthermore, the square tube beam 2 is made of rectangular square steel with dimensions of 100mm × 100mm and a wall thickness of 10mm. The length of the square tube beam 2 is set to 1.2m according to the spacing of the scaffold uprights 31. The square tube beam 2 is provided with three second connecting members 21, and the spacing between adjacent second connecting members 21 is 600mm, forming an integer ratio of 2:1 with the 300mm spacing of the uprights 31 of the scaffold upright assembly 3. The second connecting member 21 has a wall thickness of 3mm and a height of 200mm, and the inner diameter of the second connecting member 21 fits tightly with the outer diameter of the upright 31. The even distribution of multiple second connecting members 21 makes the stress on the square tube beam 2 more balanced, and the 2:1 spacing ratio achieves seamless integration with the standard scaffolding system without the need for additional adjustment of the upright spacing 31.

[0040] This embodiment, through precise dimensional matching and the selection of high-strength materials, increases the overall load-bearing capacity of the device by 20%, and controls the maximum deformation of the frame to within 5mm, far below the standard requirement of 15mm, effectively ensuring the forming quality of the concrete structure and good stress stability. Furthermore, the standardized design of each component shortens installation time; the installation of a single conversion device can be completed by only two workers in 5 minutes, and disassembly requires no special tools, significantly reducing labor costs and increasing construction efficiency. In addition, the length of the square tube beam 2 can be customized according to actual needs, and the number and spacing of the second connecting parts 21 can be flexibly adjusted, adapting to different modular scaffolding systems, including disc-lock, coupler-lock, and cup-lock scaffolding, thus having a wider range of applications. Finally, the device has a high reusability rate, reducing overall costs compared to traditional disposable diagonal bracing members. Moreover, since no special treatment of the supporting foundation is required, it offers better economic adaptability.

[0041] The working principle of this embodiment is as follows: This utility model discloses a multifunctional ultra-high formwork support rod conversion device based on force path conversion and structural stress optimization. By setting an intermediate conversion component consisting of a diagonal brace base and a square tube beam at the top of the scaffold uprights, and using the conversion device as a new diagonal brace support platform, the original diagonal brace support point that needed to be on the ground is moved to the middle or upper part of the scaffold. This means that the diagonal brace no longer extends to the ground, but is connected to the diagonal brace base installed on the square tube beam, thereby significantly shortening the actual length of the diagonal brace. This transforms the traditional long diagonal brace stress mode into a highly efficient force transmission system in which the short diagonal brace and the scaffold work together to bear the load, thus solving the problem of scaffold instability caused by excessively long diagonal braces with a slenderness ratio exceeding 150 in ultra-high formwork.

[0042] When the formwork is subjected to a load, the force generated by the load is first transmitted to the diagonal brace. The diagonal brace, through its sleeve connection with the first connecting piece on the diagonal brace base, transmits the force to the diagonal brace base. The rotating part on the first connecting piece and the rotating engagement of the ear plate opening allow the diagonal brace to adjust its angle according to the direction of the force on the formwork, ensuring that the force is transmitted to the base plate along the optimal path. The base plate then transmits the received force to the connecting part at its bottom. The first and second engaging parts of the connecting part form a stable engagement with the connecting groove of the square tube beam. Because the connecting part is inserted from the first diameter part of the connecting groove... The device slides into and is fixed at the second diameter section. The constraint force generated by the transition fit effectively resists lateral displacement, allowing the force to be smoothly transmitted to the square tube beam through the connecting part. The square tube beam, as a force transfer structure, utilizes its high rigidity due to its rectangular steel material to evenly distribute the dispersed force to multiple lower second connectors. These second connectors connect to the uprights of the scaffolding upright assembly, and the distance between two second connectors is an integer ratio to the distance between the two uprights of the scaffolding upright assembly. This design ensures uniform force transmission, achieving force balance and stability throughout the entire formwork system. Throughout the process, the device avoids the instability of the frame caused by the excessive slenderness ratio of traditional diagonal braces by shortening the effective length of the diagonal braces and optimizing the force transmission path. Simultaneously, the use of detachable connections and an adjustable angle structure allows the multi-functional ultra-high formwork support member conversion device to be applicable to different construction conditions, improving the stability and safety of the formwork frame.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multifunctional ultra-high formwork support rod conversion device, characterized in that, It includes a diagonal bracing base (1) and a square tube beam (2). The diagonal bracing base (1) is provided with a first connector (11) for connecting with the diagonal bracing rod. The diagonal bracing rod is used to support the formwork. The diagonal bracing base (1) and the square tube beam (2) are detachably connected. The square tube beam (2) is provided with a second connector (21). The second connector (21) is used to connect with the scaffold upright assembly (3). This conversion device is used as an intermediate body for connecting and converting the diagonal bracing rod and the scaffold upright assembly (3).

2. The multifunctional ultra-high formwork support rod conversion device according to claim 1, characterized in that, The inclined support base (1) includes a connecting part (12), and the square tube beam (2) is provided with a connecting groove (22). The connecting part (12) and the connecting groove (22) are detachably connected.

3. The multifunctional ultra-high formwork support rod conversion device according to claim 2, characterized in that, The connecting groove (22) includes a first diameter portion (221) and a second diameter portion (222). The connecting groove (22) transitions from the large diameter of the first diameter portion (221) to the small diameter of the second diameter portion (222). The connecting portion (12) can be inserted from the first diameter portion (221) and slid until it is fixed in the second diameter portion (222).

4. The multifunctional ultra-high formwork support rod conversion device according to claim 3, characterized in that, The connecting part (12) includes a first engaging part (121) and a second engaging part (122). The first engaging part (121) and the second engaging part (122) are fixedly connected. The first engaging part (121) is coaxially disposed below the second engaging part (122). The first diameter part (221) is non-interference-fitted with the first engaging part (121) and can be inserted from the first diameter part (221). The second diameter part (222) is transition-fitted with the second engaging part (122).

5. The multifunctional ultra-high formwork support rod conversion device according to claim 4, characterized in that, The first engaging part (121) and the second engaging part (122) are round steel. The diameter of the first engaging part (121) is 40-60mm, and the diameter of the first diameter part (221) is greater than the maximum value of the diameter of the first engaging part (121).

6. The multifunctional ultra-high formwork support rod conversion device according to claim 1, characterized in that, The inclined support base (1) is provided with a base plate (13) and a pair of ear plates (14) fixedly connected to the base plate (13), and the first connector (11) is detachably connected to the ear plates (14).

7. The multifunctional ultra-high formwork support rod conversion device according to claim 6, characterized in that, The first connector (11) is provided with a rotating part (111), and a pair of ear plates (14) are symmetrically arranged. The ear plates (14) are provided with openings. The rotating part (111) cooperates with the openings and the rotating part (111) can rotate around the axis in the openings. The diagonal brace is sleeved on the first connector (11).

8. The multifunctional ultra-high formwork support rod conversion device according to claim 6, characterized in that, The base plate (13) and the ear plate (14) are both galvanized steel plates with a thickness of 6-10mm, and the first connector (11) is a plain round steel bar with a diameter of 10-30mm.

9. The multifunctional ultra-high formwork support rod conversion device according to claim 1, characterized in that, The square tube beam (2) is provided with a plurality of second connecting parts (21), and the scaffold upright assembly (3) is provided with a plurality of uprights (31). The distance between two second connecting parts (21) is an integer ratio to the distance between two uprights (31).

10. The multifunctional ultra-high formwork support rod conversion device according to claim 1, characterized in that, The square tube beam (2) is a rectangular square steel with a side length of 80-100mm and a wall thickness of 8-12mm. The second connector (21) has an inner diameter of 40-60mm, a wall thickness of 2-5mm, and a height of 150-250mm.

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