An arcuate tubular gripping hoop device for a rectangular member and a method of installation

Abstract

The application provides an arc-shaped tubular holding hoop device suitable for rectangular components, which comprises two first hoop arms, two second hoop arms and four arc-shaped arms. The two first hoop arms are integrally formed in a V-shaped structure, comprising a first included angle and two first side arms, and a first locking and adjusting assembly is arranged in the first included angle. The two second hoop arms are integrally formed in a V-shaped structure, comprising a second included angle and two second side arms, and a second locking and adjusting assembly is arranged in the second included angle. The two first hoop arms and the two second hoop arms are arranged in a spaced manner and are distributed in a surrounding manner to form a square-like structure. The four arc-shaped arms are in an arc-shaped square tube structure, and are arranged between the first side arms and the second side arms. The application provides an arc-shaped tubular holding hoop device suitable for rectangular components and a mounting method, solves the technical defects of the traditional square hoop, such as stress concentration at the corner of the rectangular component, damage to the cross section opening, easy loosening of the locking, limited size adjustment, and inconvenience of disassembly and assembly, and takes into account the component protection, locking stability and installation convenience.

Description

Technical Field

[0001] This invention relates to the field of clamping devices, and more particularly to an arc-shaped tubular clamping device and installation method suitable for rectangular components. Background Technology

[0002] In the fields of ancient building restoration, modern prefabricated structure construction, and component reinforcement, rectangular cross-section components such as rectangular beams and columns are highly susceptible to cracking and splitting during stress, aging, or splicing. Loosening, misalignment, and deformation may also occur at splice joints. Applying circumferential constraints to these components using clamping devices can effectively limit crack propagation, prevent further splitting and damage, or constrain relative displacement at splice joints, ensuring overall structural stability and load-bearing safety. Therefore, clamping and fixing is a crucial repair, reinforcement, or new construction procedure in such projects.

[0003] Currently available clamping devices for rectangular cross-section members mostly suffer from the following technical defects: First, traditional rigid square clamps often use straight plate splicing structures with right-angle bends. When clamping, the right-angle part of the clamp forms line contact or even point contact with the corner of the member, resulting in high stress concentration. This not only fails to effectively inhibit crack development but also easily exacerbates the splitting and cracking of the member's edges and corners, causing secondary damage. Second, traditional square clamps often use through bolts, which can damage the member and cause cross-sectional loss, and can also easily lead to a decrease in durability. Third, the size adjustment range is limited, the versatility is poor, and disassembly and assembly require overall disassembly, resulting in low construction efficiency. Fourth, there is insufficient constraint on the splicing parts of the member, making it impossible to reliably prevent the joint from loosening, misaligning, and deforming. Fifth, conventional locking structures have weak anti-loosening performance and are prone to loosening under vibration and thermal expansion and contraction, leading to clamping force failure and unreliable clamping. Sixth, they have insufficient rigidity and are prone to deformation, making it difficult to provide stable constraint over a long period of time. Although some improved arc-shaped clamps have optimized the contact form, they still have problems such as weak splicing, low adjustment accuracy, and no effective anti-loosening. They cannot truly meet the comprehensive clamping requirements of suppressing cracking and splitting, restraining splicing misalignment, and long-term stable locking. Therefore, there is an urgent need in this field to provide a clamping device that combines anti-splitting, anti-loosening, non-destructive, reliable locking, and convenient assembly and disassembly to meet the actual needs of engineering. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an arc-shaped tubular clamping device and installation method suitable for rectangular components, which solves the technical defects of traditional square clamps that easily cause stress concentration at the corners of rectangular components, damage to cross-sectional openings, easy loosening of locking, limited size adjustment, and inconvenience of disassembly and assembly, while taking into account component protection, locking stability and installation convenience.

[0005] This invention is implemented as follows: First aspect An arc-shaped tubular clamping device suitable for rectangular components includes two first clamp arms, two second clamp arms, and four arc-shaped arms. The two first clamp arms are integrally formed "V"-shaped structures, including a first included angle and two first side arms. The first included angle has a rounded transition structure, and a first locking adjustment component is provided within the first included angle. The first side arms are arc-shaped square tube structures, and a plurality of circular mounting holes are evenly distributed through the first side arms. The two second clamp arms are integrally formed "V"-shaped structures, including a second included angle and two second side arms. The included angle is a rounded transition structure, and a second locking adjustment component is provided inside the second included angle; the second side arm is an arc-shaped square tube structure, and a plurality of circular mounting holes are evenly provided through the second side arm; the two first hoop arms and the two second hoop arms are spaced apart and arranged in a surrounding distribution to form a square-like structure; the four arc-shaped arms are all arc-shaped square tube structures, and a plurality of circular mounting holes are provided on the arc-shaped arms. The arc-shaped arms are located between the first side arms and the second side arms, and bolts are used to pass through the circular mounting holes to connect the first hoop arms and the two second hoop arms.

[0006] Furthermore, the first locking adjustment assembly includes a reinforcing platform disposed on the upper and lower outer sides of the first included angle, a pull rod mounting hole passing through the reinforcing platform, and a pull rod disposed between the two pull rod mounting holes. The pull rod is a bidirectional adjusting screw with external thread sections with opposite directions of rotation at both ends. The two ends of the pull rod are respectively provided with pull rod mounting holes and are locked and fixed between the reinforcing platforms by hexagonal nuts and wedge-shaped anti-loosening washers.

[0007] Furthermore, the second locking adjustment assembly includes a stop tooth seat and a rack. The stop tooth seat includes an upper guide stop tooth seat and a lower guide stop tooth seat arranged opposite each other, with one end of each fixed to one inner side of the second included angle. The rack is a double-sided adjusting rack, with one end fixed to the other inner side of the second included angle. The rack is movably engaged between the upper guide stop tooth seat and the lower guide stop tooth seat.

[0008] Furthermore, the first side arm, the second side arm, and the arc-shaped arm are all hollow square tube structures. The two ends of the arc-shaped arm are respectively inserted into the first side arm and the second side arm, and are secured by bolts through circular mounting holes and by hexagonal nuts and wedge-shaped anti-loosening washers, so that the two ends of the arc-shaped arm are fixedly connected to the first side arm and the second side arm respectively.

[0009] Furthermore, the surface of the pull rod is provided with scale markings along the axial direction.

[0010] Second aspect An installation method for an arc-shaped tubular clamping device suitable for rectangular components includes the following steps: (1) Pre-assembly operation; disconnect any of the arc-shaped arms from the first hoop arm or the second hoop arm, so that one side of the clamping hoop device forms a lateral open assembly notch, which facilitates the clamping hoop device to be fitted onto the outside of the rectangular component; and arrange the first included angle and the second included angle of the first hoop arm and the second hoop arm respectively at the four corners of the rectangular component, so that the first included angle and the second included angle accurately avoid the corners of the rectangular component, and the arc surface of the arc-shaped arm is aligned and fitted with the periphery side of the rectangular component; (2) Preliminary pre-tightening; reconnect the dismantled arc arm to the first side arm or the second side arm, select the appropriate circular mounting hole position on the arc arm, the first side arm and the second side arm according to the specifications of the rectangular component, and then fix it through the circular mounting hole with double bolts to achieve rigid connection and preliminary pre-tightening, and complete the preliminary fitting of the clamping hoop device and the rectangular component; (3) Lock the second locking adjustment assembly; after the clamping device is closed, apply opposing pre-tightening force to the second clamp arm equipped with the second locking adjustment assembly through the tooling, so that the rack gradually meshes with the upper guide stop tooth seat and the lower guide stop tooth seat; (4) Lock the first locking adjustment assembly; install the pull rod between the upper and lower outer reinforcing platforms of the first hoop arm, and then tighten the hexagonal nuts at both ends of the pull rod to fit with the wedge-shaped anti-loosening washers, leaving a tightening adjustment allowance; finally, tighten the hexagonal nuts at both ends of the pull rod simultaneously, gradually tighten the first hoop arm, so that the arc-shaped inner wall of the arc arm fits tightly with the side of the rectangular component until the clamping force meets the preset usage requirements, stop tightening the hexagonal nuts, and complete the installation of the clamping hoop device.

[0011] The advantages of this invention are as follows: The invention is rationally designed. The first hoop arm, the second hoop arm, and the arc-shaped arm adopt an arc-shaped square tube structure and a circular arc transition structure, achieving circumferential segmented contact and clamping with the rectangular component. This solves the problems of stress concentration and cracking damage at the corners of rectangular components caused by traditional right-angle square hoops, and also avoids cross-sectional damage caused by through bolts. Dual size adjustment is achieved by setting a first locking adjustment component and a second locking adjustment component, providing a wide adjustment range and high precision, adaptable to rectangular components of different specifications, and exhibiting strong versatility. The wedge-shaped anti-loosening washer with a beveled self-locking structure provides excellent anti-loosening performance, avoiding the attenuation of clamping force caused by vibration and thermal expansion and contraction, thus improving the safety and stability of the component clamping. The modular and split design of the clamping device, combined with detachable bolt connections, allows for partial operation of installation, disassembly, and maintenance without overall disassembly, significantly improving construction efficiency. The first side arm, the second side arm, and the arc-shaped arm are all hollow square tube structures, ensuring high structural rigidity and constraint capacity while reducing weight. The overall rigidity is sufficient, and it is not easily deformed, facilitating on-site construction and long-term use. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0014] Figure 2 is a three-dimensional structural schematic diagram of the first hoop arm in an embodiment of the present invention.

[0015] Figure 3 is a three-dimensional structural schematic diagram of the second hoop arm in an embodiment of the present invention.

[0016] Figure 4 is a three-dimensional structural diagram of the arc-shaped arm in an embodiment of the present invention.

[0017] Figure 5 is a three-dimensional structural diagram of the pull rod in an embodiment of the present invention.

[0018] Figure 6 is a schematic diagram of the structure of the second locking adjustment component in an embodiment of the present invention.

[0019] Figure 7 is a three-dimensional structural diagram of the bolt and wedge-shaped anti-loosening washer in an embodiment of the present invention.

[0020] Reference numerals in the attached figures: clamping device 100, first clamp arm 1, first included angle 11, first side arm 12, circular mounting hole 121, first locking adjustment component 13, reinforcing platform 131, pull rod mounting hole 132, pull rod 133, second clamp arm 2, second included angle 21, second side arm 22, circular mounting hole 221, second locking adjustment component 23, stop tooth seat 231, upper guide stop tooth seat 2311, lower guide stop tooth seat 2312, rack 232, arc arm 3, circular mounting hole 31, bolt 4, hexagonal nut 5, wedge-shaped anti-loosening washer 6. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 7As shown, this embodiment discloses an arc-shaped tubular clamping device 100 suitable for rectangular components, comprising two first clamp arms 1, two second clamp arms 2, and four arc-shaped arms 3. The two first clamp arms 1 are integrally formed "V"-shaped structures, including a first included angle 11 and two first side arms 12. The first included angle 11 has a rounded transition structure, and a first locking adjustment component 13 is provided within the first included angle 11. The first side arms 12 are arc-shaped square tube structures, and a plurality of circular mounting holes 121 are evenly distributed through the first side arms 12. The two second clamp arms 2 are integrally formed "V"-shaped structures, including a second included angle 21 and two second side arms 22. The second included angle 21 has a rounded transition structure, and the ... The device 100 is equipped with a second locking adjustment component 23; the second side arm 22 is an arc-shaped square tube structure, and a plurality of circular mounting holes 221 are evenly provided on the second side arm 22; the two first hoop arms 1 and the two second hoop arms 2 are spaced apart and arranged in a closed arrangement to form a square structure; the four arc-shaped arms 3 are all arc-shaped square tube structures, and a plurality of circular mounting holes 31 are provided on the arc-shaped arms 3. The arc-shaped arms 3 are located between the first side arm 12 and the second side arm 22, and bolts 4 are used to pass through the circular mounting holes to connect the first hoop arm 1 and the two second hoop arms 2. By selecting different circular mounting hole positions for assembly, the size of the clamping hoop device 100 can be adjusted to adapt to rectangular components of different specifications.

[0023] Preferably, the first locking adjustment assembly 13 includes a reinforcing platform 131 disposed on the upper and lower outer sides of the first included angle 11, a pull rod mounting hole 132 passing through the reinforcing platform 131, and a pull rod 133 disposed between the two pull rod mounting holes 132. The pull rod 133 is a bidirectional adjusting screw with external thread sections of opposite directions at both ends. The two ends of the pull rod 133 pass through the pull rod mounting holes 132 respectively and are locked and fixed between the reinforcing platforms 131 by a hexagonal nut 5 and a wedge-shaped anti-loosening washer 6. The wedge-shaped anti-loosening washer 6 achieves anti-loosening through a beveled self-locking structure. The reinforcing platform 131 and the first side arm 12 are an integral structure. The surface of the reinforcing platform 131 with the pull rod mounting hole 132 is a flat rectangular surface. This mating surface is a bearing working surface that abuts against, limits, and locks the hexagonal nut 5, facilitating axial contact and locking adjustment of the hexagonal nut 5, resulting in concentrated force and reliable alignment. The two ends of the pull rod 133 are externally threaded sections with opposite directions of rotation, while the middle section is a smooth rod structure, used to limit the rotation of the pull rod 133 itself and ensure adjustment stability. The wedge-shaped anti-loosening washer 6 works in conjunction with the hexagonal nut 5, forming an anti-loosening self-locking structure using the wedge-shaped interlocking principle. This effectively prevents the clamping device 100 from loosening under vibration conditions, ensuring the locking reliability of the entire clamping device 100, and thus ensuring a long-term stable clamping effect on the rectangular component. At the same time, the hole wall of the pull rod mounting hole 132 is finely ground and polished to reduce the fitting clearance between it and the pull rod 133, ensuring the coaxiality of the rotation of the pull rod 133 and the displacement of the first side arm 12.

[0024] Preferably, the second locking adjustment assembly 23 includes a stop tooth seat 231 and a rack 232. The stop tooth seat 231 includes an upper guide stop tooth seat 2311 and a lower guide stop tooth seat 2312 arranged opposite to each other, one end of which is fixed to one inner side of the second included angle 21. The rack 232 is a double-sided adjusting rack, one end of which is fixed to the other inner side of the second included angle 21. The rack 232 is movably engaged between the upper guide stop tooth seat 2311 and the lower guide stop tooth seat 2312. Pre-tightening and locking are achieved through unidirectional meshing of the tooth surfaces, providing a stable force for the clamping hoop device 100. The second locking adjustment component is set to reliably clamp the rectangular component, thereby improving the connection stability and structural strength of the entire device, avoiding loosening of the connection or deformation of the components due to long-term stress, and ensuring the long-term stable operation of the clamping hoop device. Together with the first locking adjustment component 13, it forms a double locking to ensure that the clamping force is stable and does not rebound, further improving the overall clamping reliability and structural stability. The two locking adjustment methods can be flexibly selected according to actual use needs to adapt to the installation and use requirements in different scenarios.

[0025] Preferably, the two ends of the arc-shaped arm 3 are respectively inserted into the first side arm 12 and the second side arm 22, and are secured by bolts 4 through circular mounting holes (121, 221, 31), and locked with hexagonal nuts 5 and wedge-shaped anti-loosening washers 6, so that the two ends of the arc-shaped arm 3 are fixedly connected to the first side arm 12 and the second side arm 22 respectively, ensuring that the arc-shaped direction is continuous and the force is uniform after connection.

[0026] Both the first included angle 11 and the second included angle 21 are rounded to avoid cracking or splitting at the corners of the rectangular components due to stress concentration. The first side arm 12, the second side arm 22, and the arc-shaped arm 3 are all hollow square tube structures. By setting the hollow structure, materials are saved and the weight is reduced, while also having a high moment of inertia and excellent torsional stiffness. This significantly improves the overall stiffness and deformation resistance without significantly increasing the weight. Compared with round tubes or open profiles, it effectively improves the overall bending, torsional, and compressive bearing capacity of the clamping device 100. It can resist plastic deformation caused by bolt preload, working load, and external forces, ensuring the dimensional stability and structural strength of the clamping device 100 during long-term use. At the same time, the straight outer contour of the square tube cross-section facilitates precise processing, assembly, and positioning. It is compatible with various connection processes such as welding and drilling, achieving reliable connection with adjacent components and facilitating the uniform transmission of loads, avoiding stress concentration, and further improving the overall reliability and service life of the device.

[0027] The first locking adjustment component 13 and the second locking adjustment component 23 are used to adjust and lock the diagonal spacing of the clamping device 100; when it is necessary to disassemble the device, it can be partially opened by removing any of the bolts 4 between the first clamp arm 1 or the second clamp arm 2 and the arc arm 3, so as to facilitate the installation and disassembly of the device.

[0028] When assembling the first hoop arm 1, the second hoop arm 2, and the arc-shaped arm 3, the bolts 4 are first inserted into the circular mounting holes for positioning. Then, the rigid connection between adjacent hoop arms is achieved through a double set of through bolt assemblies, ensuring accurate docking and a firm connection. This prevents hoop arm misalignment during assembly. The double bolt connection structure can improve the connection strength and overall stability at the hoop arm docking point, ensuring smooth transmission of clamping force between each hoop arm and preventing problems such as separation or deformation at the docking point. At the same time, the circular mounting holes can enable quick alignment when the hoop arms are docked, improving on-site assembly efficiency.

[0029] The outer surfaces of the first hoop 1, the second hoop 2, and the arc-shaped arm 3 are all treated with hot-dip galvanizing or powder coating for corrosion protection, forming a dense anti-corrosion protective layer that can effectively resist the erosion of rainwater, moisture, and corrosive media in the outdoor construction environment, greatly improving the outdoor weather resistance and service life of the device, and meeting the long-term reinforcement requirements of rectangular components.

[0030] Furthermore, the surface of the middle smooth section of the pull rod 133 can be provided with precision scale lines. The scale lines are distributed along the axis of the pull rod, which can intuitively reflect the displacement of the first side arm. This makes it easy for construction personnel to accurately control the tightening degree and clamping force of the clamping device 100, ensuring that the clamping device 100 is subjected to uniform force when installed on the rectangular component. At the same time, the external thread sections at both ends of the pull rod are processed with high precision thread rolling. The thread profile is regular and has high meshing accuracy with the hexagonal locking nut 7, which can effectively avoid thread jamming and ensure a smooth and reliable adjustment process.

[0031] The first hoop arm 1 and the second hoop arm 2 are precisely aligned and face-to-face with the connecting ends of the arc-shaped arm 3, forming a square or near-square closed clamping device. The length of the arc-shaped arm 3 is less than the total span of one side formed by splicing the first hoop arm 1 and the second hoop arm 2 at both ends. This size design, combined with the bolt connection structure, allows only the connection constraint to be released during assembly and disassembly. The mating parts at both ends remain in contact but are no longer locked. Due to the shorter length and smaller constraint of the arc-shaped arm, a small amount of slippage, lateral misalignment, and angular sway can occur between the mating end faces. This allows the local interface to open naturally without disengaging from the mat, forming a lateral assembly gap. The entire process involves no end-point rigid compression or constraint, which avoids pipe deformation under pressure and improves assembly convenience. At the same time, the arc-shaped arm, as a replaceable component, allows for flexible adjustment of the overall enclosure size of the clamping device by selecting different length specifications. Combined with the fine-tuning function of the bidirectional adjusting screw, the adaptability and adjustment range of the device is greatly expanded, making it compatible with various rectangular components. There is no need to customize a complete set of clamps for components of different sizes, which significantly improves the versatility and economy of the device.

[0032] An installation method for an arc-shaped tubular clamping device suitable for rectangular components includes the following steps: (1) Pre-assembly operation; disconnect any of the arc-shaped arms 3 from the first hoop arm 1 or the second hoop arm 2, so that a lateral open assembly notch is formed on one side of the clamping hoop device 100, so that the clamping hoop device 100 can be fitted onto the outside of the rectangular component; and arrange the first included angle 11 and the second included angle 21 of the first hoop arm 1 and the second hoop arm 2 respectively at the four corners of the rectangular component, so that the first included angle 11 and the second included angle 21 accurately avoid the corners of the rectangular component, and the arc surface of the arc-shaped arm 3 is aligned and fitted with the periphery side of the rectangular component; (2) Preliminary pre-tightening; reconnect the dismantled arc arm 3 to the first side arm 12 or the second side arm 22, and select the appropriate circular mounting hole (121, 221, 31) on the arc arm 3, the first side arm 12 and the second side arm 22 according to the specifications of the rectangular component. Then, use double bolts to pass through the circular mounting holes to achieve rigid connection and preliminary pre-tightening, and complete the preliminary fitting of the clamping device 100 with the rectangular component. (3) Lock the second locking adjustment component 23; After the clamping device 100 is closed, the tooling applies a pre-tightening force to the two second clamp arms 2 equipped with the second locking adjustment component 23, so that the rack 232 gradually meshes with the upper guide stop tooth seat 2311 and the lower guide stop tooth seat 2312, and the pre-tightening lock is achieved by using the one-way self-locking of the tooth surface; (4) Lock the first locking adjustment component 13; install the pull rod 133 between the reinforcing platforms 131 on the upper and lower outer sides of the first hoop arm 1, and then tighten the hexagonal nuts 5 at both ends of the pull rod 133 to fit with the wedge-shaped anti-loosening washers 6, leaving a tightening adjustment margin; finally, tighten the hexagonal nuts 5 at both ends of the pull rod 133 simultaneously, gradually tighten the first hoop arm 1, so that the arc-shaped inner wall of the arc arm 3 fits tightly with the side of the rectangular component until the clamping force meets the preset usage requirements, stop tightening the hexagonal nuts 5, and complete the installation of the clamping hoop device 100.

[0033] The first locking adjustment component 13 of this device relies on the inclined self-locking structure of the wedge-shaped anti-loosening washer 6 to abut against the reinforcing platform 131, and together with the stopping action of the second locking adjustment component 23, forms a double anti-loosening lock to complete the clamping and fixing of the rectangular component.

[0034] If a small adjustment to the clamping tightness is required, first loosen the hexagonal nut 5 of the first locking adjustment component 13 in the opposite direction to release the self-locking state of the wedge-shaped anti-loosening washer 6; then simultaneously rotate the hexagonal nuts 5 at both ends to drive the first hoop arm 1 and the second hoop arm 2 to move in opposite directions or towards each other, adjusting the clamping tightness to a suitable tightness; if a large adjustment is required, with the assistance of tooling, the rack of the second locking adjustment component 23 can be disengaged from the upper and lower guide stop teeth, the engagement position can be repositioned and pre-tightened again, and then the final fine adjustment can be completed by rotating the nuts at both ends and the anti-loosening lock can be restored, thus completing the adjustment.

[0035] The arc-shaped arms fit snugly against the sides of the rectangular component. The four symmetrically arranged arc-shaped curved surfaces work together to enclose and press the components together, ensuring that the clamping load is evenly distributed along the arc-shaped contact surface. The contact stress gradient is gentle, resulting in uniform overall stress distribution without local peak stress. Furthermore, the circular arc transition structure of the irregular arc-shaped square tube clamp arm disperses the concentrated stress at the corners, weakening the corner compression effect and effectively preventing corner damage, cracking, or surface damage to the rectangular component under clamping force, thus improving the clamping effect.

[0036] The advantages of this invention are as follows: The invention is rationally designed. The first hoop arm, the second hoop arm, and the arc-shaped arm adopt an arc-shaped square tube structure and an angled rounded transition structure, achieving circumferential segmented contact and clamping with the rectangular component. This solves the problem of stress concentration and cracking damage at the corners of rectangular components caused by traditional right-angle square hoops, and also avoids cross-sectional damage caused by through bolts. The combination of the first hoop arm, the second hoop arm, and the arc-shaped arm forms a square or near-square frame structure. Significant adjustment can be achieved by adjusting the overlapping holes of adjacent hoop arms, reducing the variety of clamping hoop specifications and maximizing the applicability to rectangular component cross-sectional dimensions. This solves the problem of traditional clamps being difficult to adapt to large cross-section components and causing uneven clamping. The second locking adjustment component 23 can achieve medium-amplitude adjustment, facilitating adjustment of the clamping force of the clamping hoop device according to working conditions. Simultaneously, reliable self-locking is achieved through tooth surface meshing, ensuring reliable clamping even under vibration conditions. The lower part is not easy to loosen; combined with the tie rod, it can achieve precise control of the diagonal spacing, and the overall adjustment is clear and easy to operate; by setting the first locking adjustment component and the second locking adjustment component, dual size adjustment is achieved, with a wide adjustment range and high precision, which can be adapted to rectangular components of different specifications, and has strong versatility; the wedge-shaped anti-loosening washer inclined self-locking structure has excellent anti-loosening performance, avoids the attenuation of clamping force caused by vibration and thermal expansion and contraction, and improves the safety and stability of component clamping; by using the modular split design of the clamping device, combined with the detachable bolt connection, installation, disassembly and maintenance can be carried out locally without the need for overall disassembly, which greatly improves construction efficiency; the first side arm, the second side arm and the arc arm are all hollow square tube structures, which reduce the weight while ensuring high structural rigidity and restraint capacity, with sufficient overall rigidity and not easy to deform, which is convenient for on-site construction and long-term use.

[0037] Any component provided by this invention can be assembled from multiple individual parts or be a single component manufactured using a one-piece molding process. The material of each hoop component of this invention can be selected from any metal material that meets the requirements of strength, rigidity, and weather resistance, depending on the actual operating conditions, stress requirements, and corrosion resistance requirements. This includes, but is not limited to, high-strength alloy steel, carbon steel, stainless steel, aluminum alloy, etc. This invention is not limited to specific metal materials. Furthermore, the cross-sectional shape of the hoop in this invention is not limited to a square tubular structure. Other cross-sectional shapes such as rectangular tubes, round tubes, channel steel, I-beams, and angle steel can be flexibly selected according to the specific usage requirements such as the cross-sectional dimensions of the clamped component, stress conditions, and installation space, as long as the requirements of enclosure, load-bearing connection, and structural stability of the hoop are met. The scope of protection of this invention covers all reasonable variations of cross-sectional shapes.

[0038] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An arc-shaped tubular clamping device suitable for rectangular components, characterized in that: include Both first clamp arms are integrally formed "V" shaped structures, including a first included angle and two first side arms. The first included angle is a rounded transition structure, and a first locking adjustment component is provided inside the first included angle. The first side arms are arc-shaped square tube structures, and a plurality of circular mounting holes are evenly provided through the first side arms. Both second hoop arms are integrally formed "V" shaped structures, including a second included angle and two second side arms. The second included angle is a rounded transition structure, and a second locking adjustment component is provided inside the second included angle. The second side arms are arc-shaped square tube structures, and a plurality of circular mounting holes are evenly provided through the second side arms. The two first hoop arms and the two second hoop arms are spaced apart and arranged in an enclosing distribution to form a square-like structure. The four arc-shaped arms are all arc-shaped square tube structures. Each arc-shaped arm has a plurality of circular mounting holes. The arc-shaped arm is positioned between the first side arm and the second side arm, and bolts are used to pass through the circular mounting holes to connect the first hoop arm and the two second hoop arms.

2. The arc-shaped tubular clamping device suitable for rectangular components according to claim 1, characterized in that: The first locking adjustment assembly includes a reinforcing platform disposed on the upper and lower outer sides of the first included angle, a pull rod mounting hole passing through the reinforcing platform, and a pull rod disposed between the two pull rod mounting holes. The pull rod is a bidirectional adjusting screw with external thread sections with opposite directions of rotation at both ends. The two ends of the pull rod are respectively provided with pull rod mounting holes and are locked and fixed between the reinforcing platforms by hexagonal nuts and wedge-shaped anti-loosening washers.

3. The arc-shaped tubular clamping device suitable for rectangular components according to claim 2, characterized in that: The second locking adjustment assembly includes a stop tooth seat and a rack. The stop tooth seat includes an upper guide stop tooth seat and a lower guide stop tooth seat arranged opposite each other, with one end of each fixed to one inner side of the second included angle. The rack is a double-sided adjusting rack, with one end of each fixed to the other inner side of the second included angle. The rack is movably engaged between the upper guide stop tooth seat and the lower guide stop tooth seat.

4. The arc-shaped tubular clamping device suitable for rectangular components according to claim 3, characterized in that: The first side arm, the second side arm, and the arc-shaped arm are all hollow square tube structures. The two ends of the arc-shaped arm are respectively inserted into the first side arm and the second side arm, and are secured by bolts through circular mounting holes and by hexagonal nuts and wedge-shaped anti-loosening washers, so that the two ends of the arc-shaped arm are fixedly connected to the first side arm and the second side arm respectively.

5. The arc-shaped tubular clamping device for rectangular components according to claim 4, characterized in that: The surface of the pull rod is marked with graduations along the axial direction.

6. A method for installing an arc-shaped tubular clamping device suitable for rectangular components as described in any one of claims 1 to 5, characterized in that, Includes the following steps: (1) Pre-assembly operation; disconnect any of the arc-shaped arms from the first hoop arm or the second hoop arm, so that one side of the clamping hoop device forms a lateral open assembly notch, which facilitates the clamping hoop device to be fitted onto the outside of the rectangular component; and arrange the first included angle and the second included angle of the first hoop arm and the second hoop arm respectively at the four corners of the rectangular component, so that the first included angle and the second included angle accurately avoid the corners of the rectangular component, and the arc surface of the arc-shaped arm is aligned and fitted with the periphery side of the rectangular component; (2) Preliminary pre-tightening; reconnect the dismantled arc arm to the first side arm or the second side arm, select the appropriate circular mounting hole position on the arc arm, the first side arm and the second side arm according to the specifications of the rectangular component, and then fix it through the circular mounting hole with double bolts to achieve rigid connection and preliminary pre-tightening, and complete the preliminary fitting of the clamping hoop device and the rectangular component; (3) Lock the second locking adjustment assembly; after the clamping device is closed, apply a pre-tightening force to the two second clamp arms equipped with the second locking adjustment assembly through the tooling, so that the rack gradually meshes with the upper guide stop tooth seat and the lower guide stop tooth seat; (4) Lock the first locking adjustment assembly; install the pull rod between the upper and lower outer reinforcing platforms of the first hoop arm, and then tighten the hexagonal nuts at both ends of the pull rod to fit with the wedge-shaped anti-loosening washers, leaving a tightening adjustment margin; finally, tighten the hexagonal nuts at both ends of the pull rod simultaneously, gradually tighten the first hoop arm, so that the arc-shaped inner wall of the arc arm fits tightly with the side of the rectangular component until the clamping force meets the preset usage requirements, stop tightening the hexagonal nuts, and complete the installation of the clamping hoop device.

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