An internal bracing connection structure for the repair of reinforced concrete circular pipe culverts

Abstract

The present invention discloses an internal bracing connection structure for the repair of reinforced concrete circular pipe culverts, and the present invention relates to the technical field of circular pipe culvert repair. The internal bracing connection structure for the repair of reinforced concrete circular pipe culverts, through the mutual cooperation of the vertically arranged bracing components, the front support ring, the rear support ring and the lateral bracing, when the reinforced concrete circular pipe culvert undergoes pressure deformation, supports the surrounding positions of the deformed part to prevent continuous deformation and cracking, and through the operation of the vertically arranged bracing components, the position of the reinforced concrete circular pipe culvert can be locally supported, improving the stable support for the overall damaged part of the reinforced concrete circular pipe culvert, preventing the continuous expansion of the deformed position, and the vertically arranged bracing components are arranged in a straight line, and both the support cylinder and the support column are columnar structures, which can limit the fluid resistance and reduce the influence on the normal flow of the culvert to a greater extent.

Description

Technical Field

[0001] The present invention relates to the technical field of circular pipe culvert repair, and particularly to an inner support connection structure for repairing reinforced concrete circular pipe culverts. Background Technique

[0002] A pipe culvert is a culvert with a circular pipe as the structure of the culvert body. The culvert body part includes a circular pipe, a foundation, a waterproof layer, etc. It can be used as a water channel below the ground elevation. A pipe culvert is a structure in highway and railway engineering, generally referring to a circular pipe culvert, that is, a culvert made of reinforced concrete circular pipes in sections. During long-term use, due to the deformation of the geological foundation caused by bearing stress, deformation and cracking occur between some culvert pipes, and it is necessary to repair the circular pipe culvert to prevent the continuous increase of damage problems.

[0003] Regarding the above related technologies, it is considered that when repairing a reinforced concrete circular pipe culvert, generally multiple support bars are added inside to provide good support from the inside out at the deformed position of the culvert pipe, prevent the damaged position of the culvert pipe from continuously expanding, and be able to maintain subsequent stable operation. After the repair is completed, due to many obstructions at the repair position, and the support bars of a fixed length are inconvenient to operate during installation, it will affect the normal water flow of the culvert pipe. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an inner support connection structure for repairing reinforced concrete circular pipe culverts, which solves the problem of affecting normal water flow after repairing damaged culvert pipes.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An inner support connection structure for repairing reinforced concrete circular pipe culverts includes two front support rings, the two front support rings are arranged symmetrically left and right, the rear walls of the two front support rings are rotatably installed with a rear support ring through a connection component, a plurality of transverse supports are evenly and fixedly installed on the adjacent sides of the two front support rings and the corresponding rear support rings, the outer arc surfaces of the plurality of transverse supports are the same as those of the front support ring and the rear support ring, sliding adjustment components are installed on the adjacent sides of the two front support rings and the corresponding rear support rings, and a plurality of vertical support components are installed between the sliding adjustment components on the same side;

[0006] The vertical support assembly includes two sliding platforms. The outer walls of the two sliding platforms are both slidably connected to the outer wall of the sliding adjustment assembly. The two sliding platforms are arranged symmetrically up and down. Grooves are formed on one side of the two adjacent sliding platforms. Rotating shafts are rotatably installed on the inner walls of the two grooves. Steering seats are fixedly installed on the outer walls of the two rotating shafts. A support cylinder is fixedly installed on the top wall of the steering seat at the bottom. A screw groove is formed on the inner wall of the support cylinder. A through opening is formed on the top wall of the support cylinder. A screw column is screwed and installed on the inner wall of the screw groove. Support columns are fixedly installed at the top ends of the screw columns. The top ends of the support columns are fixedly connected to the bottom wall of the steering seat at the top. A hexagonal fastening seat is fixedly installed at the top of the outer wall of the support cylinder.

[0007] Further, both of the steering seats are located inside the corresponding grooves. The diameter of the through opening is smaller than the diameter of the screw groove. The outer wall of the support column is slidably connected to the inner wall of the through opening. The outer walls of the support cylinder and the support column are both in a vertical state and are both cylindrical.

[0008] Further, the sliding adjustment assembly includes two groups of adjustment frames. Each group of adjustment frames has two. The two adjustment frames on the same side are arranged symmetrically up and down. Both groups of adjustment frames are fixedly connected to the side walls of the corresponding front support ring and rear support ring. The arc surfaces of the outer walls of both groups of adjustment frames are the same as those of the front support ring and the rear support ring.

[0009] Further, installation grooves are formed on one side of the two adjacent adjustment frames on the same side. Slide bars are fixedly installed on the inner walls of several installation grooves. A plurality of sliders are slidably installed on the outer walls of several slide bars. The outer walls of the plurality of sliders are slidably connected to the inner walls of the corresponding installation grooves.

[0010] Further, the outer walls of several sliders are fixedly connected to the corresponding sliding platforms. The outer walls of the two sliding platforms are both slidably connected to the outer walls of the corresponding adjustment frames.

[0011] Further, abutting seats are fixedly installed on one side of the two sliding platforms away from each other. Abutting bolts are screwed and installed on the outer walls of the two abutting seats. The two abutting bolts are both screwed through the corresponding abutting seats and are abutted and fixed to the outer walls of the adjustment frames.

[0012] Further, the connection assembly includes two first arc-shaped filling strips. The two first arc-shaped filling strips are arranged symmetrically left and right. Both of the two first arc-shaped filling strips are fixedly connected to the top ends of the corresponding rear support rings. Through grooves are formed at the bottom ends of the two rear support rings. Rotating seats are rotatably installed on the inner walls of the two through grooves through rotating shafts. Both of the two rotating seats are fixedly connected to the bottom ends of the corresponding front support rings.

[0013] Furthermore, arc-shaped filling strips II are fixedly installed at the tops of the two front support rings. The two arc-shaped filling strips II are installed in a staggered manner with the corresponding arc-shaped filling strips I. The two arc-shaped filling strips II are in contact with the corresponding arc-shaped filling strips I. The two arc-shaped filling strips II and the corresponding front support rings are integrally formed and have the same radian. The two arc-shaped filling strips I and the corresponding rear support rings are integrally formed and have the same radian.

[0014] Furthermore, installation openings are provided at the front positions of the top walls of the two arc-shaped filling strips I. A number of adjustment openings are evenly provided on the outer walls of the two arc-shaped filling strips II. Threaded lines are provided on the inner walls of the number of adjustment openings.

[0015] Furthermore, fastening bolts are screwed and installed on the inner walls of the two installation openings. The outer walls of the two fastening bolts are screwed and fixed to the inner walls of the corresponding adjustment openings. Filling supports are installed on the outer walls of the two front support rings and the corresponding rear support rings.

[0016] The present invention has the following beneficial effects:

[0017] (1) For the internal bracing connection structure for repairing reinforced concrete circular pipe culverts, through the mutual cooperation of the vertical support assembly, the front support rings, the rear support rings, and the transverse supports, when the reinforced concrete circular pipe culvert undergoes pressure deformation, the surrounding positions of the deformed part are supported to prevent continuous deformation and cracking. And through the work of the vertical support assembly, the position of the reinforced concrete circular pipe culvert can be locally supported, improving the stable support for the overall damaged part of the reinforced concrete circular pipe culvert, preventing the continuous expansion of the deformed position. Moreover, the vertical support assembly is arranged in a straight line, and both the support cylinder and the support column are columnar structures, which can have limited fluid resistance and reduce the influence on the normal flow of the culvert to a greater extent.

[0018] (2) For the internal bracing connection structure for repairing reinforced concrete circular pipe culverts, through the mutual cooperation of each component with the connection component set, when the diameter of the culvert is slightly different from the circular support diameter formed by the front support rings and the rear support rings, the expansion sizes of the front support rings and the rear support rings can be adjusted, so that the front support rings and the rear support rings can be kept in close contact with the inner wall of the reinforced concrete circular pipe culvert in a supporting state, which has certain adjustability and can also adapt to and repair more specifications of reinforced concrete circular pipe culverts.

[0019] (3) The inner bracing connection structure for repairing reinforced concrete circular pipe culverts, with the sliding adjustment component, can adjust the position of the vertical support component during operation, enabling the vertical support component to reach the deformed position of the reinforced concrete circular pipe culvert and provide local stable support. The position of the vertical support component can be accurately adjusted and locked to prevent the vertical support component from shifting due to the influence of liquid flow.

[0020] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view of the external structure of the present invention;

[0022] Figure 2 is the right side schematic view of the external structure of the present invention;

[0023] Figure 3 is the combined schematic view of the front support ring, rear support ring and connection component of the present invention;

[0024] Figure 4 is the opened schematic view of the front support ring, rear support ring and connection component of the present invention;

[0025] Figure 5 is the exploded view of the internal structure of the front support ring, rear support ring and connection component of the present invention;

[0026] Figure 6 is the combined schematic view of the front support ring, rear support ring and sliding adjustment component of the present invention;

[0027] Figure 7 is the combined schematic view of the vertical support component and the sliding adjustment component of the present invention;

[0028] Figure 8 is the exploded view of the internal structure of the vertical support component and the sliding adjustment of the present invention;

[0029] Figure 9 is the exploded view of the internal structure of the vertical support component of the present invention;

[0030] Figure 10 is for the present invention Figure 9 enlarged view of the structure at A.

[0031] In the figure, 1 is the rear support ring; 2 is the front support ring; 3 is the filling support; 4 is the connecting component; 41 is the first arc filling strip; 42 is the second arc filling strip; 43 is the installation opening; 44 is the adjustment opening; 45 is the fastening bolt; 46 is the through groove; 47 is the rotating seat; 5 is the horizontal support; 6 is the vertical support component; 61 is the sliding table; 62 is the groove; 63 is the rotating shaft; 64 is the support column; 65 is the stud; 66 is the hexagonal fastening seat; 67 is the thread groove; 68 is the steering seat; 69 is the through port; 610 is the support cylinder; 7 is the sliding adjustment component; 71 is the adjustment frame; 72 is the installation groove; 73 is the sliding rod; 74 is the slider; 75 is the abutting seat; 76 is the abutting bolt. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0034] Please refer to Figures 1-10 , the embodiments of the present invention provide a technical solution: an inner support connection structure for repairing reinforced concrete circular pipe culverts, including two front support rings 2, the two front support rings 2 are arranged symmetrically left and right, the rear walls of the two front support rings 2 are rotatably installed with a rear support ring 1 through a connecting component 4, a plurality of horizontal supports 5 are uniformly fixedly installed on the adjacent sides of the two front support rings 2 and the corresponding rear support rings 1, the outer wall arc surfaces of the plurality of horizontal supports 5 are the same as those of the front support rings 2 and the rear support rings 1, sliding adjustment components 7 are installed on the adjacent sides of the two front support rings 2 and the corresponding rear support rings 1, and a plurality of vertical support components 6 are installed between the sliding adjustment components 7 on the same side;

[0035] The vertical support assembly 6 includes two sliding platforms 61. The outer walls of the two sliding platforms 61 are both slidably connected to the outer wall of the sliding adjustment assembly 7. The two sliding platforms 61 are arranged symmetrically up and down. Grooves 62 are formed on one adjacent side of the two sliding platforms 61. Rotating shafts 63 are rotatably installed on the inner walls of the two grooves 62. Steering seats 68 are fixedly installed on the outer walls of the two rotating shafts 63. A support cylinder 610 is fixedly installed on the top wall of the steering seat 68 located at the bottom. A screw groove 67 is formed on the inner wall of the support cylinder 610. A through port 69 is formed on the top wall of the support cylinder 610. A stud 65 is screwed and installed on the inner wall of the screw groove 67. Support columns 64 are fixedly installed at the top ends of the studs 65. The top ends of the support columns 64 are fixedly connected to the bottom wall of the steering seat 68 located at the top. A hexagonal fastening seat 66 is fixedly installed at the top of the outer wall of the support cylinder 610.

[0036] In this implementation scheme, when the vertical support assembly 6 is working, it can accurately support the local deformation of the reinforced concrete circular culvert, improve the good support strength, prevent the problem of deformation expansion, and cooperate with the front support ring 2 and the rear support ring 1 to stably support the periphery of the deformed position of the reinforced concrete circular culvert and disperse the bearing stress of the culvert. The support cylinder 610 and the support columns 64 are both in a straight line distribution state, which can reduce the impact on normal flow.

[0037] Specifically, the two steering seats 68 are both located inside the corresponding grooves 62. The diameter of the through port 69 is smaller than the diameter of the screw groove 67. The outer wall of the support column 64 is slidably connected to the inner wall of the through port 69. The outer walls of the support cylinder 610 and the support columns 64 are both vertical and cylindrical.

[0038] In this implementation scheme, the steering seat 68 can rotate normally inside the groove 62 through the rotating shaft 63. The support column 64 will slide up and down along the inner wall of the through port 69. The support cylinder 610 and the support columns 64 are both cylindrical, reducing the resistance to the flow of the culvert.

[0039] Specifically, the sliding adjustment assembly 7 includes two groups of adjusting frames 71. Each group of adjusting frames 71 has two. The two adjusting frames 71 on the same side are arranged symmetrically up and down. The two groups of adjusting frames 71 are both fixedly connected to the side walls of the corresponding front support ring 2 and the rear support ring 1. The arc surfaces of the outer walls of the two groups of adjusting frames 71 are the same as those of the front support ring 2 and the rear support ring 1.

[0040] In this implementation scheme, several adjusting frames 71 are fixedly installed between the front support ring 2 and the rear support ring 1. After the whole device is placed inside the culvert, the adjusting frames 71 also fit and support the inner wall of the culvert.

[0041] Specifically, on the adjacent sides of two adjusting frames 71 on the same side, mounting grooves 72 are provided. On the inner walls of a number of mounting grooves 72, sliding rods 73 are fixedly installed. On the outer walls of a number of sliding rods 73, a number of sliders 74 are slidably installed. On the outer walls of a number of sliders 74, they are slidably connected to the inner walls of the corresponding mounting grooves 72.

[0042] In this implementation scheme, the slider 74 can slide along the inner wall of the mounting groove 72 provided on the adjusting frame 71 and maintain a sliding posture along the outer wall of the sliding rod 73.

[0043] Specifically, on the outer walls of a number of sliders 74, they are fixedly connected to the corresponding sliding tables 61. On the outer walls of two sliding tables 61, they are slidably connected to the outer walls of the corresponding adjusting frames 71.

[0044] In this implementation scheme, when the slider 74 moves, it will drive the sliding table 61 to slide along the outer wall of the adjusting frame 71.

[0045] Specifically, on the mutually remote sides of two sliding tables 61, abutting seats 75 are fixedly installed. On the outer walls of two abutting seats 75, abutting bolts 76 are screwed and installed. Two abutting bolts 76 are screwed through the corresponding abutting seats 75 and are in abutting connection and fixation with the outer wall of the adjusting frame 71.

[0046] In this implementation scheme, after the sliding table 61 slides to a determined position, the abutting bolt 76 is screwed through the abutting seat 75 and is in abutting connection and fixation with the outer wall of the adjusting frame 71, so as to fix the position of the entire vertical support assembly 6.

[0047] Specifically, the connecting component 4 includes two first arc-shaped filling strips 41. The two first arc-shaped filling strips 41 are arranged symmetrically left and right. The two first arc-shaped filling strips 41 are both fixedly connected to the top of the corresponding rear support ring 1. Through grooves 46 are provided at the bottoms of two rear support rings 1. On the inner walls of two through grooves 46, rotating seats 47 are rotatably installed through rotating shafts. The two rotating seats 47 are both fixedly connected to the bottom of the corresponding front support ring 2.

[0048] In this implementation scheme, the rear support ring 1 and the front support ring 2 rely on the rotating seat 47 to drive the rotating shaft to rotate in the inner wall of the through groove 46, thereby driving the rear support ring 1 and the front support ring 2 to open and close quickly.

[0049] Specifically, on the tops of two front support rings 2, second arc-shaped filling strips 42 are fixedly installed. The two second arc-shaped filling strips 42 are installed in a staggered manner with the corresponding first arc-shaped filling strips 41. The two second arc-shaped filling strips 42 are in mutual fit with the corresponding first arc-shaped filling strips 41. The two second arc-shaped filling strips 42 are integrally formed with the corresponding front support rings 2 and have the same radian. The two first arc-shaped filling strips 41 are integrally formed with the corresponding rear support rings 1 and have the same radian.

[0050] In this embodiment, the arc-shaped filling strip 2 42 and the arc-shaped filling strip 1 41 are installed with a displacement relative to each other, so that the front support ring 2 and the rear support ring 1 can be adjusted for opening and closing, and are installed and connected through the mutual cooperation of the arc-shaped filling strip 2 42 and the arc-shaped filling strip 1 41.

[0051] Specifically, the front portions of the top walls of the two arc-shaped filling strips 41 are provided with mounting openings 43 , the outer walls of the two arc-shaped filling strips 42 are evenly provided with a plurality of adjustment openings 44 , and the inner walls of the plurality of adjustment openings 44 are provided with threaded lines.

[0052] In this embodiment, the installation opening 43 and the adjustment opening 44 have the same specifications, which facilitates screwing and fixing the installation opening 43 and the adjustment opening 44 with the fastening bolts 45 .

[0053] Specifically, the inner walls of the two installation ports 43 are threadedly installed with fastening bolts 45 , the outer walls of the two fastening bolts 45 are threadedly fixed to the inner walls of the corresponding adjustment ports 44 , and the outer walls of the two front support rings 2 and the corresponding rear support ring 1 are installed with filling supports 3 .

[0054] In this embodiment, the fastening bolt 45 passes through the installation port 43 and is screwed and fixed to the inner wall of the corresponding adjustment port 44, thereby completing the limiting fixation of the state of the front support ring 2 and the rear support ring 1 after they are opened. The setting of the filling support 3 makes the front support ring 2 and the rear support ring 1 fit tightly with the inner wall of the circular culvert after they are opened to improve the connection sealing.

[0055] Working principle of the device: When working, first put the whole device into the reinforced concrete circular culvert, and drive the arc-shaped filling strip 1 41 to break away from the contact with the arc-shaped filling strip 2 42 and the front support ring 2 through the movable rear support ring 1, so that the rear support ring 1 and the front support ring 2 are opened, and the front support ring 2 drives the rotating seat 47 to rotate and open in the inner wall of the through groove 46;

[0056] The rear support ring 1, the front support ring 2 and the transverse support 5 are closely attached to the inner wall of the reinforced concrete circular pipe culvert, so that the arc-shaped filling strip 1 41 and the arc-shaped filling strip 2 42 are in a dislocated state. After the rear support ring 1, the front support ring 2, the transverse support 5 and the reinforced concrete circular pipe culvert are in contact, the fastening bolts 45 are screwed through the installation opening 43 and the corresponding adjustment opening 44 inner wall to fix the arc-shaped filling strip 1 41 and the arc-shaped filling strip 2 42 in a dislocated installation and keep a fixed posture;

[0057] In order to increase the effective support for the deformed part of the reinforced concrete circular pipe culvert, the movable support cylinder 610 and the support column 64 drive the steering seat 68 and the sliding platform 61 to move, and the sliding platform 61 can drive the slider 74 to slide along the inner wall of the mounting groove 72 in the adjusting frame 71, so that the sliding platform 61 slides along the outer wall of the sliding rod 73 to the position of the deformed part of the reinforced concrete circular pipe culvert;

[0058] The hexagon fastening seats 66 on multiple vertical support components 6 are rotated simultaneously by a tool to drive the support cylinder 610 to rotate on the top wall of the corresponding swivel base 68. When the support cylinder 610 rotates, it drives the stud 65 to move slowly upward along the inner wall of the screw groove 67. The stud 65 drives the support column 64 to move slowly upward in the inner wall of the through hole 69, thereby driving the swivel base 68 to maintain an abutting state against the inner wall of the corresponding sliding table 61, and completing the abutting and locking against the corresponding sliding table 61 by screwing the abutting bolt 76 through the corresponding abutting seat 75.

[0059] The rear support ring 1, the front support ring 2 and the transverse support 5 can complete the abutting support against the inner wall of the reinforced concrete circular culvert. However, the overall force is relatively uniform and does not increase the support strength at the deformed part. The vertical support component 6 is provided to focus on supporting the position of the deformed part. By slowly adjusting the length between the support column 64 and the support cylinder 610, the position of the deformed part of the reinforced concrete circular culvert is abutted and fixed to improve the support strength, which has a good repair effect on the reinforced concrete circular culvert. At the same time, after the rear support ring 1 and the front support ring 2 are in close contact with the inner wall of the reinforced concrete circular culvert, they drive the filling support 3 to be in sealing contact with the inner wall of the culvert.

[0060] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0061] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An internal bracing connection structure for the repair of reinforced concrete circular pipe culverts, comprising two front support rings (2), characterized in that: The two front support rings (2) are arranged symmetrically left and right. A rear support ring (1) is rotatably installed on the rear walls of the two front support rings (2) through a connection component (4). A plurality of transverse supports (5) are evenly and fixedly installed on one side of each of the two front support rings (2) adjacent to the corresponding rear support ring (1). The outer arc surfaces of the plurality of transverse supports (5) are the same as those of the front support ring (2) and the rear support ring (1). A sliding adjustment component (7) is installed on one side of each of the two front support rings (2) adjacent to the corresponding rear support ring (1). A plurality of vertical support components (6) are installed between the sliding adjustment components (7) on the same side; The vertical support component (6) includes two sliding platforms (61). The outer walls of the two sliding platforms (61) are both slidably connected to the outer wall of the sliding adjustment component (7). The two sliding platforms (61) are arranged symmetrically up and down. Grooves (62) are opened on one side of the two sliding platforms (61) adjacent to each other. Rotating shafts (63) are rotatably installed on the inner walls of the two grooves (62). Steering seats (68) are fixedly installed on the outer walls of the two rotating shafts (63). A support cylinder (610) is fixedly installed on the top wall of the steering seat (68) at the bottom. A screw groove (67) is opened on the inner wall of the support cylinder (610). A through opening (69) is opened on the top wall of the support cylinder (610). A screw column (65) is screwed and installed on the inner wall of the screw groove (67). Support columns (64) are fixedly installed at the tops of the screw columns (65). The tops of the support columns (64) are fixedly connected to the bottom wall of the steering seat (68) at the top. A hexagonal fastening seat (66) is fixedly installed at the top of the outer wall of the support cylinder (610); The sliding adjustment component (7) includes two groups of adjustment frames (71). Each group of adjustment frames (71) has two. The two adjustment frames (71) on the same side are arranged symmetrically up and down. The two groups of adjustment frames (71) are both fixedly connected to the side walls of the corresponding front support ring (2) and the rear support ring (1). The outer arc surfaces of the two groups of adjustment frames (71) are the same as those of the front support ring (2) and the rear support ring (1); Installation grooves (72) are opened on one side of the two adjustment frames (71) on the same side adjacent to each other. Sliding rods (73) are fixedly installed on the inner walls of the plurality of installation grooves (72). A plurality of sliders (74) are slidably installed on the outer walls of the plurality of sliding rods (73). The outer walls of the plurality of sliders (74) are both slidably connected to the inner walls of the corresponding installation grooves (72); Contact seats (75) are fixedly installed on one side of the two sliding platforms (61) away from each other. Contact bolts (76) are screwed and installed on the outer walls of the two contact seats (75). The two contact bolts (76) are both screwed through the corresponding contact seats (75) and are in contact and fixed with the outer wall of the adjustment frame (71).

2. The inner bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 1, characterized in that: Both of the two steering seats (68) are located inside the corresponding grooves (62). The diameter of the through port (69) is smaller than that of the thread groove (67). The outer wall of the support column (64) is slidably connected to the inner wall of the through port (69). The outer walls of the support cylinder (610) and the support column (64) are both vertical and cylindrical.

3. The inner bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 1, wherein: The outer walls of several sliders (74) are fixedly connected to the corresponding sliding platforms (61). The outer walls of both of the two sliding platforms (61) are slidably connected to the outer walls of the corresponding adjusting frames (71).

4. The internal bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 1, wherein: The connecting component (4) includes two first arc-shaped filling strips (41). The two first arc-shaped filling strips (41) are arranged symmetrically left and right. Both of the two first arc-shaped filling strips (41) are fixedly connected to the top ends of the corresponding rear support rings (1). Through grooves (46) are formed at the bottom ends of both of the two rear support rings (1). Rotating seats (47) are rotatably installed on the inner walls of both of the two through grooves (46) through rotating shafts. Both of the two rotating seats (47) are fixedly connected to the bottom ends of the corresponding front support rings (2).

5. An internal bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 4, characterized in that: Arc-shaped filling strips two (42) are fixedly installed at the top ends of both of the two front support rings (2). The two arc-shaped filling strips two (42) are installed in a staggered manner with the corresponding arc-shaped filling strips one (41). The two arc-shaped filling strips two (42) are in contact with the corresponding arc-shaped filling strips one (41). The two arc-shaped filling strips two (42) are integrally formed with the corresponding front support rings (2) and have the same radian. The two arc-shaped filling strips one (41) are integrally formed with the corresponding rear support rings (1) and have the same radian.

6. The internal bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 5, wherein: Installation openings (43) are formed at the front parts of the top walls of both of the two arc-shaped filling strips one (41). A number of adjusting openings (44) are evenly formed on the outer walls of the two arc-shaped filling strips two (42). Thread lines are formed on the inner walls of the number of adjusting openings (44).

7. The internal bracing connection structure for repairing reinforced concrete circular pipe culverts according to claim 6, characterized in that: Fastening bolts (45) are screwed and installed on the inner walls of both of the two installation openings (43). The outer walls of both of the two fastening bolts (45) are screwed and fixed to the inner walls of the corresponding adjusting openings (44). Filling supports (3) are installed on the outer walls of both of the two front support rings (2) and the corresponding rear support rings (1).

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