Welding-free full-assembled net rack rod piece reinforcing device and method

Abstract

The present application relates to the technical field of net rack structure reinforcement, and particularly relates to a welding-free full-assembled net rack rod piece reinforcement device and method. The device comprises: a fixed center bearing frame for reinforcing a circular tube component; a telescopic vertical sliding inclined strut assembly arranged between two adjacent vertical fixed vertical rods; an assembled sectional sleeve assembly for fixing the fixed center bearing frame outside the circular tube component; a cable body for connecting two connecting bases on the fixed center bearing frame; and a tensioning adjusting mechanism for adjusting the tension of the cable body. The welding-free full-assembled net rack rod piece reinforcement device and method provided by the present application adopts a welding-free full-assembled construction process, and the components are standardized prefabricated in a factory. The components are only assembled by bolts and pins at the site, so that the construction is safe and efficient, welding damage is avoided, and the original structure performance is not affected. The components are connected by bolts, so that the components are convenient to disassemble and assemble, the components can be recycled and reused, and the engineering cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of space frame structure reinforcement technology, and in particular to a weld-free, fully assembled space frame member reinforcement device and method. It is applicable to scenarios where, in the context of urban renewal, space frames require reinforcement due to functional changes or load adjustments that result in insufficient bearing capacity or altered stress characteristics in some members. It is especially targeted at the reinforcement of circular tube members in space frame systems that have a large slenderness ratio, weak lateral stiffness, and are prone to buckling instability, and falls within the scope of building steel structure reinforcement technology. Background Technology

[0002] In large-span space frame structures, circular tube members are widely used. During urban renewal, the function of the space frame changes and the load conditions are adjusted accordingly. The bearing capacity of some circular tube members no longer meets the current specifications, or the stress characteristics change, thus requiring reinforcement. In addition, under long-term service and the effects of temperature, wind, and earthquakes, the members of the space frame are prone to weakening of lateral stiffness, further increasing the risk of buckling instability and affecting the overall safety of the space frame.

[0003] Existing reinforcement methods mostly employ on-site welding, external steel plate cladding, integral clamps, or ordinary supports. Welding easily damages the base material and weakens the performance of the members, and hot work carries high risks and cannot be disassembled and reused; integral clamps have poor versatility, and ordinary supports can only provide passive resistance, resulting in limited reinforcement effects.

[0004] Existing technologies generally suffer from drawbacks such as complex construction, poor applicability, difficulty in disassembly and assembly, and lack of active constraints, making it difficult to meet the reinforcement requirements of space frame members. Therefore, a welding-free, fully assembled space frame member reinforcement device and method are designed to provide an alternative technical solution to the above-mentioned technical problems. Summary of the Invention

[0005] Based on this, it is necessary to provide a weld-free, fully assembled space frame reinforcement device and method to address the above-mentioned technical problems. This is to solve the technical problems of existing reinforcement methods, such as poor versatility of integral sleeves, the fact that ordinary supports can only provide passive resistance and have limited reinforcement effects, and the fact that they generally suffer from complex construction, poor applicability, difficult disassembly and assembly, and lack of active restraint, making it difficult to meet the reinforcement needs of space frame members.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A weld-free, fully assembled space frame member reinforcement device includes:

[0008] A fixed-center bearing frame is assembled symmetrically from four vertical bearing units along a circular tube member, and is used to reinforce the circular tube member.

[0009] A retractable vertical sliding brace assembly is installed between two adjacent fixed vertical poles;

[0010] Prefabricated segmented clamping assembly is used to fix a fixed central pressure-bearing frame on the outside of a circular tube component;

[0011] The tension cable body is set on the outside of the rotating pulley on the semi-sealed guide pulley and is used to connect the two connecting bases on the fixed central bearing frame;

[0012] The tensioning adjustment mechanism is located inside the tension cable body and is used to adjust the tension of the tension cable body.

[0013] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, each vertical bearing unit includes:

[0014] A vertical fixed pole is set on the outside of the circular tube component, and a semi-sealed guide pulley is fixed at the top of the vertical fixed pole to support the tension cable body;

[0015] The retractable bottom horizontal connecting piece is fixed to the bottom of the vertical fixed pole and is used to support the position of the vertical fixed pole in contact with the round tube component.

[0016] The telescopic sleeve is slidably connected to the outer sides of both ends of the telescopic bottom horizontal connecting piece, allowing the telescopic sleeve to freely extend and retract horizontally on the outer side of the telescopic bottom horizontal connecting piece to adapt to different frame spacings.

[0017] The first length positioning pin is set on the inner side of the telescopic sleeve near the vertical fixed pole, and is used to position the telescopic sleeve after adjustment on the outer side of the telescopic bottom horizontal connecting piece.

[0018] Connect the base and fix it to the top of the telescopic sleeve at the end away from the vertical fixed pole.

[0019] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, the semi-sealed guide pulley includes:

[0020] A semi-enclosed housing is mounted on top of a vertically fixed pole via pulley pins;

[0021] The rotating pulley is rotatably connected to the inside of the semi-enclosed shell, and is used to adjust the tension cable body through the protection of the semi-enclosed shell on the outside of the rotating pulley.

[0022] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, the retractable vertical sliding brace assembly includes:

[0023] Double-set telescopic diagonal bracing is installed between two vertical fixed uprights;

[0024] The sliding base is rotatably connected to both sides of the double-set telescopic diagonal rod;

[0025] Vertical positioning bolts are installed at both ends of the vertical fixed pole and are used to position the height of the sliding base inside the vertical fixed pole.

[0026] As a preferred embodiment of the weld-free fully assembled space frame reinforcement device provided by the present invention, the inner side of the outer cylinder of the double-set telescopic diagonal bar is provided with a length positioning pin for positioning the length of the double-set telescopic diagonal bar after adjustment.

[0027] In a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, both ends of one side of the sliding base are fixed with first connecting lugs, and the double-set telescopic diagonal rods are rotatably connected to the sliding base through the first connecting lugs.

[0028] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, the assembled segmented sleeve assembly includes:

[0029] Multiple arc-shaped sleeve units, with adjacent arc-shaped sleeve units hinged at both ends;

[0030] A dual-adjustable telescopic device is installed between the first and last arc-shaped clamp units to allow the prefabricated segmented clamp assembly to close on the outside of the circular tube component.

[0031] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, the dual-adjustable telescopic device includes:

[0032] An arc-shaped telescopic plate is slidably connected inside the shell, and the end of the shell is hinged to the head arc-shaped sleeve unit through an arc-shaped unit connecting pin.

[0033] The slider is slidably connected to both sides of the housing;

[0034] The second length positioning pin is located inside the slider and slides through the housing and is connected to the arc-shaped telescopic plate.

[0035] Tightening bolts are located on both sides of the housing, and the outer side of the tightening bolts is threadedly connected to the slider.

[0036] As a preferred embodiment of the weld-free, fully assembled space frame reinforcement device provided by the present invention, the tensioning adjustment mechanism includes:

[0037] The tensioning and rotating mechanism has reverse bolts threaded inside both ends, and the two reverse bolts have opposite thread directions.

[0038] The second connecting ear plate is rotatably connected to the outer side of the two opposite bolts at opposite ends by a rotating connecting pin, and is used to adapt and adjust the connected tension cable body.

[0039] An assembly method for a weld-free, fully assembled space frame member reinforcement device includes the following steps:

[0040] S1: Arrange the four vertical bearing units symmetrically along the outside of the circular tube component;

[0041] S2: Adjust the telescopic sleeve's extension amount on the outside of the telescopic bottom transverse connecting piece according to the length of the round tube component, and lock it by the first length positioning pin after adjustment;

[0042] S3: Install a telescopic vertical sliding brace assembly between two adjacent vertical fixed uprights;

[0043] S4: Install prefabricated segmented sleeve assembly on the outside of the circular tube component to fix the fixed central bearing frame on the outside of the circular tube component;

[0044] S5: Lay out the tensioned cable body, apply prestress through the tension adjustment mechanism to form a stable self-balancing system.

[0045] It is clear without a doubt that the technical solutions described above by this invention can solve the technical problems that this invention aims to address.

[0046] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0047] This invention provides a weld-free, fully prefabricated space frame reinforcement device and method. It employs a weld-free, fully prefabricated construction process, with standardized prefabrication of components in the factory. On-site assembly is completed only using bolts and pins, ensuring safe and efficient construction, avoiding welding damage, and not affecting the original structural performance. The bottom connecting plate, diagonal braces, and sleeves are all equipped with telescopic adjustment structures, flexibly adapting to different outer diameter round pipes, offering strong versatility. The diagonal braces have dual adjustment capabilities of length extension and vertical sliding, with precise control over support height and outward expansion angle, resulting in high frame stiffness and balanced stress distribution. The tension cable body is connected to the connecting base, ensuring a direct force transmission path and clear force distribution, avoiding localized stress concentration. The tensioning section features a disconnected design, providing high adjustment precision, reliable locking, and strong controllability of prestress. The tension system actively suppresses lateral deformation of the members, reducing the slenderness ratio and significantly improving buckling resistance and stable bearing capacity. All bolted connections facilitate convenient assembly and disassembly, and the components are recyclable and reusable, reducing project costs. Attached Figure Description

[0048] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0050] Figure 2 This is a schematic diagram of the fixed central pressure-bearing frame of the present invention;

[0051] Figure 3 This is a schematic diagram of a fixed central pressure-bearing frame assembled with four vertical pressure-bearing units and a retractable vertical sliding brace assembly according to the present invention.

[0052] Figure 4 This is a schematic diagram of the double-set telescopic structure of the telescopic vertical sliding brace assembly of the present invention;

[0053] Figure 5 This is a vertical sliding diagram of the diagonal brace component of the present invention;

[0054] Figure 6 This is a schematic diagram of the overall structure of the prefabricated segmented clamp assembly of the present invention;

[0055] Figure 7 This is an enlarged structural schematic diagram of the dual-adjustable telescopic device of the present invention;

[0056] Figure 8 This is an enlarged schematic diagram of the semi-sealed guide pulley structure of the present invention;

[0057] Figure 9 This is a schematic diagram of the tensioning adjustment mechanism of the present invention;

[0058] Figure 10 This is a schematic diagram of the connecting base structure of the present invention.

[0059] In the diagram: 1. Circular tube component; 2. Fixed central bearing frame; 3. Telescopic vertical sliding brace assembly; 4. Prefabricated segmented clamp assembly; 5. Tensioned cable body; 6. Semi-sealed guide pulley; 7. Tensioning adjustment mechanism;

[0060] 21. Vertical fixed pole; 22. Telescopic bottom horizontal connecting piece; 23. Telescopic sleeve; 24. First length positioning pin; 25. Connecting base;

[0061] 31. Double-set telescopic diagonal brace; 32. Sliding base; 33. Length positioning pin; 34. First connecting lug; 35. Vertical sliding guide rail; 36. Vertical positioning bolt;

[0062] 41. Arc-shaped clamp unit; 42. Dual-adjustable telescopic device;

[0063] 421. Arc-shaped telescopic plate; 422. Slider; 423. Second length positioning pin; 424. Arc-shaped unit connecting pin; 425. Tightening bolt; 426. Sliding track; 427. Housing;

[0064] 61. Pulley pin; 62. Semi-enclosed housing; 63. Rotating pulley;

[0065] 71. Tensioning and rotating mechanism; 72. Reverse bolt; 73. Second connecting ear plate; 74. Rotating connecting pin. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0067] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0068] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0069] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0070] Example 1

[0071] Reference Figures 1-10 A weld-free, fully assembled space frame member reinforcement device and method, used to reinforce circular tube members 1 with large slenderness ratio, weak lateral stiffness, and prone to buckling instability, comprising:

[0072] The fixed central bearing frame 2 is symmetrically assembled from four vertical bearing units arranged symmetrically forward and backward and left and right along the circumference of the circular tube component 1. It is used to reinforce the circular tube component 1 and has high overall rigidity and stable stress.

[0073] Each vertical bearing unit includes:

[0074] The vertical fixed pole 21 is set on the outside of the circular tube component 1 and is a non-extendable rigid rod. The inner side of the vertical fixed pole 21 has a sliding cavity to form a vertical sliding guide rail 35. Thus, a sliding cavity for connecting the sliding base 32 is opened inside the vertical fixed pole 21, and the sliding base 32 is adjusted linearly by the vertical sliding guide rail 35 for placement and disengagement. The top of the vertical fixed pole 21 is fixed with a semi-sealed guide pulley 6 for supporting the tension cable body 5.

[0075] The semi-sealed guide pulley 6 includes:

[0076] The semi-enclosed housing 62 is mounted on the top of the vertical fixed pole 21 via a pulley pin 61;

[0077] Rotating pulley 63 is rotatably connected to the inside of the semi-enclosed housing 62, and is used to adjust the tension cable 5 outside the rotating pulley 63 through the protection of the semi-enclosed housing 62, thereby effectively preventing the tension cable 5 from derailing and reducing friction.

[0078] The retractable bottom horizontal connecting piece 22 is fixed to the bottom of the vertical fixed pole 21 and is used to support the position of the vertical fixed pole 21 in contact with the round tube component 1, so as to ensure the vertical integrity of the overall structure.

[0079] The telescopic sleeve 23 is slidably connected to the outer sides of both ends of the telescopic bottom horizontal connecting piece 22, thereby allowing the telescopic bottom horizontal connecting piece 22 and the telescopic sleeve 23 to form a double sleeve nesting structure, which allows the telescopic sleeve 23 to freely extend and retract in the horizontal direction on the outer side of the telescopic bottom horizontal connecting piece 22 to adapt to different frame spacing.

[0080] The first length positioning pin 24 is set on the inner side of the telescopic sleeve 23 near the vertical fixed pole 21. It is used to position the telescopic sleeve 23 after it is adjusted to the outside of the telescopic bottom horizontal connecting piece 22. After the telescopic sleeve 23 is adjusted to the outside of the telescopic bottom horizontal connecting piece 22, it is locked by the first length positioning pin 24 to ensure reliable docking of adjacent vertical pressure-bearing units. This is to facilitate cable installation and force transmission.

[0081] The connecting base 25 is fixed to the top of the telescopic sleeve 23 at the end away from the vertical fixed pole 21, which is used to reliably fix the tension cable body 5, thereby making the force transmission path more direct;

[0082] The retractable vertical sliding diagonal brace assembly 3 is straddling between two adjacent vertical fixed uprights 21; it is used to improve the overall rigidity of the frame and control lateral deformation, while also having the dual adjustment capabilities of length extension and vertical sliding, making the structure flexible and highly adaptable.

[0083] The retractable vertical sliding brace assembly 3 includes:

[0084] A double-sleeve telescopic diagonal rod 31 is installed between two vertical fixed uprights 21. The double-sleeve telescopic diagonal rod 31 is a sleeve with freely adjustable length, consisting of an inner cylinder and an outer cylinder. The inner cylinder slides inside the outer cylinder to adjust the length of the double-sleeve telescopic diagonal rod 31. A length positioning pin 33 is provided on the inner side of the outer cylinder of the double-sleeve telescopic diagonal rod 31 to position the length of the double-sleeve telescopic diagonal rod 31 after adjustment, thereby locking the double-sleeve telescopic diagonal rod 31 after length adjustment through the cooperation of the length positioning pin 33.

[0085] The sliding base 32 is rotatably connected to both sides of the double-set telescopic diagonal rod 31, so that one of the sliding bases 32 is rotatably connected to the inner cylinder of the double-set telescopic diagonal rod 31, and the other sliding base 32 is rotatably connected to the outer cylinder of the double-set telescopic diagonal rod 31.

[0086] Preferably, both ends of one side of the sliding base 32 are fixed with first connecting lugs 34, and the double telescopic diagonal rods 31 are rotatably connected to the sliding base 32 through the first connecting lugs 34. This allows the sliding base 32 to be adjusted in translation on the inside of the vertical sliding guide rail 35, and the tilt of the double telescopic diagonal rods 31 can be adaptively adjusted by the rotation of the first connecting lugs 34.

[0087] Vertical positioning bolts 36 are installed at both ends of the vertical fixed pole 21 to position the height of the sliding base 32 inside the vertical fixed pole 21. Thus, when the sliding base 32 slides up and down on the vertical fixed pole 21 through the cooperation of the vertical sliding guide rail 35, after the assembly and adjustment of the retractable vertical sliding brace assembly 3, the contact between the bottom of the vertical positioning bolts 36 and the sliding base 32 prevents the sliding base 32 from rising outside the vertical fixed pole 21, ensuring the stability of the support height of the retractable vertical sliding brace assembly 3.

[0088] The prefabricated segmented sleeve assembly 4 is used to fix the fixed central pressure-bearing frame 2 on the outside of the circular tube component 1. Specifically, it uses the space reserved at the end of the retractable bottom transverse connecting piece 22 to surround the outer wall of the circular tube component 1 to transfer prestress and provide uniform constraint.

[0089] The prefabricated segmented clamp assembly 4 includes:

[0090] Multiple arc-shaped sleeve units 41 are hinged end to end between two adjacent arc-shaped sleeve units 41, so that they can surround the outside of the circular tube component 1, and are installed in the middle of the telescopic bottom transverse connecting piece 22 and inside the telescopic sleeve 23 away from the vertical fixed pole 21, so as to fix the fixed central pressure bearing frame 2 on the outside of the circular tube component 1.

[0091] Preferably, two adjacent arc-shaped sleeve units 41 are hinged together by arc-shaped unit connecting pins 424, and the arc-shaped telescopic plate 421 in the dual-adjustable telescopic device 42 is also hinged to the tail arc-shaped sleeve unit 41 by arc-shaped unit connecting pins 424.

[0092] In this embodiment, the number of specific arc-shaped sleeve units 41 can be changed by varying the diameter of the circular tube component 1.

[0093] The dual-adjustable telescopic device 42 is set between the first arc-shaped sleeve unit 41 and the last arc-shaped sleeve unit 41. It is used to close the assembled segmented sleeve assembly 4 on the outside of the round pipe component 1. Through the adjustment of the dual-adjustable telescopic device 42, the assembled segmented sleeve assembly 4 can accurately fit the round pipe component 1 with different outer diameters, and the gap on the inside is not easy to appear.

[0094] In other embodiments, a dual-adjustable telescopic device 42 may be provided between each two adjacent arc-shaped sleeve units 41, thereby enabling the overall circumferential length extension and radial arc fine adjustment of the assembled segmented sleeve assembly 4.

[0095] The dual-adjustable telescopic device 42 includes:

[0096] The arc-shaped telescopic plate 421 is slidably connected inside the housing 427. The end of the housing 427 is hinged to the head arc-shaped sleeve unit 41 through the arc-shaped unit connecting pin 424. It is used to adjust the telescopic range by floating inside the housing 427. The end of the arc-shaped telescopic plate 421 is hinged to the tail arc-shaped sleeve unit 41 through the arc-shaped unit connecting pin 424 to achieve fine adjustment and adjust the inner diameter of the sleeve.

[0097] Slider 422 is slidably connected to both sides of housing 427, and is used to allow slider 422 to slide and adjust on both sides of housing 427;

[0098] The second length positioning pin 423 is located inside the slider 422 and slides through the housing 427 and is connected to the arc-shaped telescopic plate 421. This allows the movement of the slider 422 to drive the arc-shaped telescopic plate 421 to adjust synchronously through the second length positioning pin 423. At the same time, the initial extension length of the arc-shaped telescopic plate 421 inside the housing 427 varies depending on the position of the second length positioning pin 423 inside the arc-shaped telescopic plate 421. During adjustment, the arc-shaped telescopic plate 421 can also be quickly and initially adjusted by varying the position of the second length positioning pin 423 inside the arc-shaped telescopic plate 421. The second length positioning pin 423 can also be adjusted by sliding inside the housing 427.

[0099] The tightening bolts 425 are located on both sides of the housing 427, allowing the tightening bolts 425 to rotate on both sides of the housing 427 through the cooperation of the optical shaft and the bearing. The outer side of the tightening bolts 425 is threadedly connected to the slider 422, so that the rotation of the tightening bolts 425 can drive the threaded slider 422 to slide and adjust on both sides of the housing 427. The movement of the slider 422 can then drive the arc-shaped telescopic plate 421 to make fine adjustments through the second length positioning pin 423.

[0100] Preferably, sliding rails 426 are fixed on the inner and outer sides of both sides of the housing 427. The slider 422 and the housing 427 are slidably adjusted through the sliding rails 426 to achieve stable sliding of the slider 422 and drive the arc-shaped telescopic plate 421 to be adjusted.

[0101] The tension cable body 5 is set on the outside of the rotating pulley 63 on the semi-sealed guide pulley 6 and is used to connect the two connecting bases 25 on the fixed central bearing frame 2.

[0102] In this embodiment, the tension cable body 5 can be divided into a left section cable body and a right section cable body. One end of the left section cable body is fixed to the left connecting base 25, and the other end of the left section cable body extends upward and passes around the semi-sealed guide pulley 6, and connects to one of the second connecting ear plates 73 on the tension adjustment mechanism 7. The right section cable body is connected to the second connecting ear plate 73 on the tension adjustment mechanism 7 at the end away from the semi-sealed guide pulley 6, and the other end of the right section cable body is connected to the right connecting base 25, so as to realize a tensionable cable body, which is convenient for independent tensioning and control of pretension force.

[0103] The tensioning adjustment mechanism 7 is located inside the tension cable body 5 and is used to adjust the tension of the tension cable body 5.

[0104] The tensioning and adjusting mechanism 7 includes:

[0105] The tensioning and rotating mechanism 71 has reverse bolts 72 threadedly connected to both ends, with the threads of the two reverse bolts 72 rotating in opposite directions. By turning the tensioning and rotating mechanism 71, the two reverse bolts 72 can be moved in opposite directions to adjust the tension of the tensioned cable body 5. By rotating the tensioning and rotating mechanism 71, the length of the tensioned cable body 5 can be precisely controlled and the design prestress can be applied. After reaching the desired position, the locking nut located outside the reverse bolt 72 is tightened, so that the locking nut contacts the tensioning and rotating mechanism 71, thereby preventing the prestress from loosening and ensuring the long-term restraint effect.

[0106] The second connecting ear plate 73 is rotatably connected to the outer side of the two reverse bolts 72 at opposite ends by rotating the connecting pin 74, and is used to adapt and adjust the connected tension cable body 5.

[0107] The application process of the weld-free, fully assembled space frame reinforcement device and method provided by this invention is as follows: During on-site assembly, firstly, four vertical bearing units are symmetrically arranged around the circumference of the circular tube component 1. The telescopic sleeve 23 on the telescopic bottom transverse connecting piece 22 is adjusted, and after adjustment, it is locked by the first length positioning pin 24 to form the bottom of the frame as a whole. Next, the telescopic vertical sliding diagonal brace assembly 3 is installed, and the vertical position is adjusted by adjusting the sliding base 32 and the vertical fixed upright 21. The inner cylinder of the double telescopic diagonal brace 31 is connected to the vertical support. The outer cylinder slides to adjust its length, and after the length adjustment, it is locked by the length positioning pin 33 to make the frame stiffness meet the design requirements; then, the assembled segmented sleeve assembly 4 is installed around the circular pipe component 1, so that the assembled segmented sleeve assembly 4 enters the middle of the telescopic bottom transverse connecting piece 22 and the end of the telescopic sleeve 23 away from the vertical fixed pole 21. The double-adjustable telescopic device 42 is adjusted to make the assembled segmented sleeve assembly 4 fit tightly against the pipe wall; finally, the tension cable body 5 is laid out, and prestress is applied by the tension adjustment mechanism 7 to form a stable self-balancing system.

[0108] Example 2

[0109] Based on the above embodiment one, its assembly method is disclosed, and the steps are as follows:

[0110] Step 1: Arrange the four vertical bearing units symmetrically along the outside of the circular tube member 1;

[0111] Step 2: Adjust the telescopic sleeve 23 on the outside of the telescopic bottom transverse connecting piece 22 according to the length of the round tube component 1, and lock it by the first length positioning pin 24 after adjustment.

[0112] Step 3: Install the telescopic vertical sliding brace assembly 3 between two adjacent vertical fixed uprights 21;

[0113] Step 4: Install the prefabricated segmented sleeve assembly 4 on the outside of the circular tube component 1 to fix the fixed central pressure-bearing frame 2 on the outside of the circular tube component 1.

[0114] Step 5: Lay out the tensioned cable body 5, and apply prestress through the tension adjustment mechanism 7 to form a stable self-balancing system.

[0115] Example 3

[0116] This embodiment is basically the same as the first embodiment in terms of structure and principle. The only difference is that it is adapted to round pipe components 1 with different outer diameter specifications. Therefore, it is only necessary to adjust the extension and retraction of the retractable bottom horizontal connecting piece 22, the retractable vertical sliding brace assembly 3, and the assembled segmented sleeve assembly 4 at the same time, and adjust the prestress through the tension adjustment mechanism 7. The rest of the assembly method and usage method are the same as the first embodiment.

[0117] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A weld-free, fully assembled space frame member reinforcement device, characterized in that, include: The fixed central bearing frame (2) is composed of four vertical bearing units symmetrically assembled along the circular tube member (1) and is used to reinforce the circular tube member (1); A retractable vertical sliding brace assembly (3) is installed between two adjacent vertical fixed uprights (21); The prefabricated segmented sleeve assembly (4) is used to fix the fixed central bearing frame (2) on the outside of the circular tube member (1); The tension cable body (5) is set on the outside of the rotating pulley (63) on the semi-sealed guide pulley (6) and is used to connect the two connecting bases (25) on the fixed central bearing frame (2); The tension adjustment mechanism (7) is located inside the tension cable body (5) and is used to adjust the tension of the tension cable body (5).

2. The weld-free, fully assembled space frame reinforcement device according to claim 1, characterized in that, Each vertical bearing unit includes: A vertical fixed pole (21) is set on the outside of the circular tube component (1). A semi-sealed guide pulley (6) is fixed at the top of the vertical fixed pole (21) to support the tension cable body (5). The retractable bottom horizontal connecting piece (22) is fixed to the bottom of the vertical fixed pole (21) and is used to support the position of the vertical fixed pole (21) in contact with the round tube component (1); The telescopic sleeve (23) is slidably connected to the outer sides of both ends of the telescopic bottom horizontal connecting piece (22), and is used to allow the telescopic sleeve (23) to freely extend and retract in the horizontal direction on the outer side of the telescopic bottom horizontal connecting piece (22) to adapt to different frame spacing. The first length positioning pin (24) is set on the inner side of the telescopic sleeve (23) near the vertical fixed pole (21) and is used to position the telescopic sleeve (23) after adjustment on the outside of the telescopic bottom horizontal connecting piece (22). Connect the base (25) and fix it to the top of the telescopic sleeve (23) away from the vertical fixed pole (21).

3. The weld-free, fully assembled space frame reinforcement device according to claim 2, characterized in that, The semi-sealed guide pulley (6) includes: A semi-enclosed housing (62) is mounted on top of a vertically fixed pole (21) via a pulley pin (61); Rotating pulley (63) is rotatably connected to the inside of the semi-enclosed shell (62) and is used to adjust the tension cable body (5) outside the rotating pulley (63) through the protection of the semi-enclosed shell (62).

4. The weld-free, fully assembled space frame reinforcement device according to claim 2, characterized in that, The retractable vertical sliding brace assembly (3) includes: Double-set telescopic diagonal bracing (31) is installed between two vertical fixed uprights (21); The sliding base (32) is rotatably connected to both sides of the double-set telescopic diagonal bar (31); Vertical positioning bolts (36) are set at both ends of the vertical fixed pole (21) to position the height of the sliding base (32) inside the vertical fixed pole (21).

5. The weld-free, fully assembled space frame member reinforcement device according to claim 4, characterized in that, The inner side of the outer cylinder of the double telescopic diagonal rod (31) is provided with a length positioning pin (33) for positioning the length of the double telescopic diagonal rod (31) after adjustment.

6. The weld-free, fully assembled space frame member reinforcement device according to claim 4, characterized in that, Both ends of one side of the sliding base (32) are fixed with first connecting ear plates (34), and the double-set telescopic diagonal rod (31) is rotatably connected to the sliding base (32) through the first connecting ear plates (34).

7. The weld-free, fully assembled space frame reinforcement device according to claim 1, characterized in that, The prefabricated segmented clamp assembly (4) includes: Multiple arc-shaped sleeve units (41), with the ends of two adjacent arc-shaped sleeve units (41) hinged together; A dual-adjustable telescopic device (42) is provided between the head arc-shaped sleeve unit (41) and the tail arc-shaped sleeve unit (41) to allow the assembled segmented sleeve assembly (4) to close on the outside of the circular tube member (1).

8. The weld-free, fully assembled space frame reinforcement device according to claim 7, characterized in that, The dual-adjustable telescopic device (42) includes: The arc-shaped telescopic plate (421) is slidably connected inside the housing (427), and the end of the housing (427) is hinged to the head arc-shaped sleeve unit (41) through the arc-shaped unit connecting pin (424); The slider (422) is slidably connected to both sides of the housing (427); The second length positioning pin (423) is located inside the slider (422), and the second length positioning pin (423) passes through the housing (427) and is slidably connected to the arc-shaped telescopic plate (421); A tightening bolt (425) is provided on both sides of the housing (427), and the outer side of the tightening bolt (425) is threadedly connected to the slider (422).

9. The weld-free, fully assembled space frame member reinforcement device according to claim 1, characterized in that, The tensioning adjustment mechanism (7) includes: The tensioning and rotating mechanism (71) has reverse bolts (72) threaded inside both ends of the tensioning and rotating mechanism (71), and the two reverse bolts (72) have opposite threads. The second connecting ear plate (73) is rotatably connected to the outside of the two reverse bolts (72) at opposite ends by rotating the connecting pin (74), and is used to adapt and adjust the connected tension cable body (5).

10. An assembly method for a weld-free, fully assembled space frame member reinforcement device, used in any one of claims 1-9, characterized in that, The steps are as follows: S1: Arrange the four vertical pressure-bearing units symmetrically along the outside of the circular tube member (1); S2: Adjust the telescopic sleeve (23) on the outside of the telescopic bottom transverse connecting piece (22) according to the length of the round tube component (1), and lock it by the first length positioning pin (24) after adjustment; S3: Install a telescopic vertical sliding brace assembly (3) between two adjacent vertical fixed uprights (21); S4: Install the prefabricated segmented sleeve assembly (4) on the outside of the circular tube component (1) to fix the fixed central bearing frame (2) on the outside of the circular tube component (1); S5: Lay out the tensioned cable body (5), and apply prestress through the tension adjustment mechanism (7) to form a stable self-balancing system.

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