Bridge repair fixing device based on bridge reconstruction

By designing a bridge repair fixing device including a middle support plate, an end support plate, a spacing adjustment mechanism, a crack fixing assembly, a telescopic adjustment assembly and a positioning clamping assembly, it is solved that the existing technology cannot be applied to different slopes and widths. The problem of bridge repair has achieved efficient repair of bridge cracks and prevented expansion.

CN119434135APending Publication Date: 2025-02-14SICHUAN JIAOJIAN TIANLU CONSTR ENG CO LTD
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Patent Information

Application Number
CN202411866050.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The prior art cannot be applied to the repair and reinforcement of bridge main bodies with different slopes, and cannot effectively prevent cracks from expanding after concrete filling.

Method used

A bridge repair fixing device based on bridge reconstruction is designed, including a middle support plate, a rotary connection end support plate, a spacing adjustment mechanism, a crack fixing assembly, a telescopic adjustment assembly and a positioning clamping assembly. The device adapts to bridge bodies of different widths and slopes by adjusting the angle and spacing between the middle support plate and the end support plate, and pulls both sides of the crack through the crack fixing assembly to prevent cracks from expanding.

Benefits of technology

The repair and fixing function of bridge cracks of different slopes and widths is realized, which improves applicability and effectively prevents the expansion of cracks.

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Abstract

The invention provides a bridge repair fixing device based on bridge reconstruction, which comprises a middle support plate and three groups of end support plates which are rotatably connected to two ends of the middle support plate and are symmetrical relative to the middle support plate, and further comprises three groups of middle support plates and three groups of end support plates which are arranged side by side, a distance adjusting mechanism is arranged between every two adjacent middle supporting plates, and the distance adjusting mechanisms are used for adjusting the distance between every two adjacent middle supporting plates, so that the device is suitable for bridge bodies with different widths. The crack fixing assembly and the limiting assembly are arranged at the tops of the middle supporting plate and the end supporting plate and used for pulling the two sides of the bridge main body crack; the telescopic adjusting assembly is mounted on the outer side wall of the end supporting plate; and the positioning and clamping assembly is arranged at the telescopic end of the telescopic adjusting assembly. Bridge structures with different radians can be supported and reinforced, cracks can be repaired, and the applicability is high.
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Description

Technical Field

[0001] The present invention relates to the technical field of road bridge repair, and in particular to a bridge repair fixing device based on bridge reconstruction. Background Art

[0002] Roads and bridges are generally paved with materials such as concrete and asphalt. During long-term use, they will be eroded by temperature, rain, etc., and they must also bear uninterrupted loads. Over time, local damage such as cracks and potholes is likely to occur. If these damaged parts are not repaired in time, rainwater can easily penetrate into the roadbed or bridge deck. Coupled with the effect of external forces, the damage rate will double, and even cause greater dangers such as breakage. Therefore, when the road surface or bridge deck is damaged, it needs to be repaired in time to minimize the loss.

[0003] After searching, in the prior art, the patent application number 201922322129.5 discloses a "road bridge crack repair fixing device, including a shell, an oil inlet pipe is fixedly connected to the top of the shell, a storage bag is arranged inside the shell, a support rod for supporting the storage bag is fixedly connected to the top of the storage bag, one end of the storage bag is connected to the free end of the oil inlet pipe, and an oil outlet pipe connected to the storage bag is arranged at the end of the storage bag away from the oil inlet pipe, and the free end of the oil outlet pipe passes through the shell and is fixedly connected to a control pipe, and a plurality of first moving wheels and a second moving wheel are fixedly connected to the bottom end of the shell in sequence, a guide rail is provided on the side of the second moving wheel close to the storage bag, a slider is slidably connected to the guide rail, an extrusion rod is fixedly connected to one end of the slider, a first round block is fixedly connected to the wheel hub of the second moving wheel, a second round block is fixedly connected to the slider, a connecting rod is hinged on the first round block, and the free end of the connecting rod is hinged to the second round block. The device solves the problem that the traditional road crack repair device repairs an uneven road surface", but the following defects still exist: (1) It is not applicable to the repair and reinforcement of bridge bodies with different slopes; (2) It is not possible to pull the two ends of the crack after the concrete is filled, and it is not possible to effectively prevent the crack from expanding.

[0004] Therefore, we make improvements on this and propose a bridge repair fixture based on bridge reconstruction. Summary of the invention

[0005] The purpose of the present invention is to address the problems that the existing repair and reinforcement of bridge bodies with different slopes is not applicable and has poor applicability; the two ends of cracks filled with concrete cannot be pulled and the cracks cannot be effectively prevented from expanding.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: Bridge repair fixtures based on bridge reconstruction to improve the above problems.

[0007] The present invention is specifically as follows: It includes a middle support plate and end support plates which are rotatably connected to both ends of the middle support plate and are symmetrical with respect to the middle support plate, and also includes: The middle support plates and the end support plates are arranged in three groups side by side, and a spacing adjustment mechanism is provided between adjacent middle support plates, and the spacing adjustment mechanism is used to adjust the spacing between adjacent middle support plates so as to be suitable for bridge bodies of different widths; A crack fixing assembly, wherein the limit assembly is arranged on the top of the middle support plate and the end support plate, and is used to pull both sides of the crack of the bridge body; A telescopic adjustment component, wherein the telescopic adjustment component is installed on the outer side wall of the end support plate; A positioning clamping assembly is arranged at the telescopic end of the telescopic adjustment assembly and is used for fitting and positioning the end support plate with the bottom end of the bridge.

[0008] As a preferred technical solution of the present invention, the spacing adjustment mechanism includes a first U-shaped seat fixedly arranged on the outer wall of the middle support plate, a first sliding groove opened at one end of the middle support plate away from the first U-shaped seat, a second U-shaped seat slidably connected to the inner wall of the first sliding groove, and an X-shaped rod movably connected between adjacent middle support plates, and the four corners of the X-shaped rod are respectively movably connected to the first U-shaped seat and the second U-shaped seat.

[0009] As a preferred technical solution of the present invention, a telescopic rod is movably connected between the first U-shaped seat and the second U-shaped seat, and a compression spring sleeved on the outer wall of the telescopic rod is also connected between the first U-shaped seat and the second U-shaped seat.

[0010] As a preferred technical solution of the present invention, the tops of the middle support plate and the end support plates are both provided with empty grooves, the crack fixing components are located in the empty grooves, and the outer side walls of the middle support plate are symmetrically provided with evenly distributed positioning holes, which are connected to the empty grooves.

[0011] As a preferred technical solution of the present invention, the crack fixing assembly includes a rotating rod connected to the center of the middle support plate by a thread, a holding plate fixedly installed at the bottom end of the rotating rod, an active rod fixedly arranged at the top end of the rotating rod, a guide groove symmetrically opened at the top of the middle support plate, a slider slidably connected to the inner wall of the guide groove, a driven rod movably connected between the slider and the active rod, a limit plate fixedly installed on the top of the slider and a tension spring movably connected between adjacent driven rods, and symmetrically distributed mounting holes are opened at both ends of the slider, and the mounting holes match the positioning holes.

[0012] As a preferred technical solution of the present invention, the top of any group of the limiting plates is provided with evenly distributed anti-slip grooves, and fixing holes are provided at the four corners of the limiting plates, and anchor rods are installed in the fixing holes.

[0013] As a preferred technical solution of the present invention, the telescopic adjustment assembly includes a first sleeve fixedly mounted on the outer side wall of the end support plate, a first threaded positioning groove provided on the outer side wall of the first sleeve, a first slide rod slidably connected in the first sleeve, and a first positioning bolt threadedly mounted in the first threaded positioning groove and abutting against the first slide rod; As a preferred technical solution of the present invention, the positioning and clamping assembly includes a second sleeve rotatably installed on the end of the first sliding rod away from the first sleeve and vertically arranged, a second threaded positioning groove opened on the second sleeve, a second sliding rod slidably connected to the second sleeve, a second positioning bolt threadedly installed in the second threaded positioning groove and abutting against the second sliding rod, and a positioning rod fixedly connected to the end of the second sliding rod away from the second sleeve.

[0014] As a preferred technical solution of the present invention, the second slide rod is provided with evenly distributed third thread positioning grooves, and the third thread positioning grooves are threadedly connected with third positioning bolts.

[0015] As a preferred technical solution of the present invention, the length of the limiting plate is greater than the width of the end support plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of the present invention: 1. The middle support plate and the end support plate connected in rotation and the crack fixing assembly matched therewith are used to realize the repair and fixing function of bridge cracks with different curvatures, thus solving the problem that the prior art cannot be applied to the repair and reinforcement of bridge bodies with different slopes; 2. By adjusting the distance of the upper limit plate in the crack fixing assembly and pulling the fixed limit plate with a tension spring, the repair and fixing function for cracks of different widths is achieved, further improving applicability.

[0017] 3. Through the setting of telescopic adjustment components and positioning clamping components, the applicable functions for bridges of different widths are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the bridge repair fixture based on bridge reconstruction provided by the present invention; Figure 2 The second schematic diagram of the three-dimensional structure of the bridge repair and fixing device based on bridge reconstruction provided by the present invention; Figure 3 The third schematic diagram of the three-dimensional structure of the bridge repair fixing device based on bridge reconstruction provided by the present invention; Figure 4 The fourth schematic diagram of the three-dimensional structure of the bridge repair fixing device based on bridge reconstruction provided by the present invention; Figure 5 A top view of a bridge repair fixture based on bridge reconstruction provided by the present invention; Figure 6 One of the three-dimensional structural schematic diagrams of the crack fixing assembly of the bridge repair fixing device based on bridge reconstruction provided by the present invention; Figure 7 This is a second schematic diagram of the three-dimensional structure of the crack fixing assembly of the bridge repair fixing device based on bridge reconstruction provided by the present invention.

[0019] Indicated in the figure: 1. Middle support plate; 2. End support plate; 3. Empty slot; 4. Positioning hole; 5. Spacing adjustment mechanism; 501. First U-shaped seat; 502. First slide slot; 503. Second U-shaped seat; 504. Compression spring; 505. X-shaped rod; 506. Telescopic rod; 6. Crack fixing assembly; 601. Rotating rod; 602. Holding plate; 603. Active rod; 604. Guide slot; 605. Sliding block; 606. Driven rod; 607. Limiting plate; 6071. Fixed Fixed hole; 6072, anchor rod; 608, mounting hole; 609, tension spring; 7, positioning clamping assembly; 701, second sleeve; 702, second threaded positioning groove; 703, second slide bar; 704, second positioning bolt; 705, positioning rod; 706, third threaded positioning groove; 707, third positioning bolt; 8, telescopic adjustment assembly; 801, first sleeve; 802, first threaded positioning groove; 803, first slide bar; 804, first positioning bolt. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0021] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this embodiment proposes a bridge repair fixing device based on bridge reconstruction, including a middle support plate 1 and end support plates 2 rotatably connected to both ends of the middle support plate 1 and symmetrical with respect to the middle support plate 1, and also includes: Three groups of middle support plates 1 and end support plates 2 are arranged side by side, and a spacing adjustment mechanism 5 is provided between adjacent middle support plates 1. The spacing adjustment mechanism 5 is used to adjust the spacing between adjacent middle support plates 1 so as to be suitable for bridge bodies of different widths. The crack fixing component 6 is arranged on the top of the middle support plate 1 and the end support plate 2, and is used to pull both sides of the crack of the bridge body; A telescopic adjustment component 8, which is mounted on the outer side wall of the end support plate 2; A positioning clamping assembly 7, which is arranged at the telescopic end of the telescopic adjustment assembly 8 and is used for the end support plate 2 to fit and position with the bottom end of the bridge; First, the angle between the middle support plate 1 and the end support plate 2 is adjusted to make it fit the bottom of the bridge body of different models.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The spacing adjustment mechanism 5 includes a first U-shaped seat 501 fixedly arranged on the outer wall of the middle support plate 1, a first slide groove 502 opened at one end of the middle support plate 1 away from the first U-shaped seat 501, a second U-shaped seat 503 slidably connected to the inner wall of the first slide groove 502, and an X-shaped rod 505 movably connected between adjacent middle support plates 1, and the four corners of the X-shaped rod 505 are movably connected to the first U-shaped seat 501 and the second U-shaped seat 503 respectively.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A telescopic rod 506 is movably connected between the first U-shaped seat 501 and the second U-shaped seat 503 , and a compression spring 504 sleeved on the outer wall of the telescopic rod 506 is also connected between the first U-shaped seat 501 and the second U-shaped seat 503 .

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The tops of the middle support plate 1 and the end support plates 2 are both provided with empty grooves 3, the crack fixing assembly 6 is located in the empty grooves 3, and the outer side wall of the middle support plate 1 is symmetrically provided with evenly distributed positioning holes 4, which are connected to the empty grooves 3.

[0028] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The crack fixing assembly 6 includes a rotating rod 601 rotatably connected to the center of the middle support plate 1 through a thread, a holding plate 602 fixedly installed at the bottom of the rotating rod 601, an active rod 603 fixedly arranged at the top of the rotating rod 601, a guide groove 604 symmetrically opened at the top of the middle support plate 1, a slider 605 slidably connected to the inner wall of the guide groove 604, a driven rod 606 movably connected between the slider 605 and the active rod 603, a limit plate 607 fixedly installed on the top of the slider 605 and a tension spring 609 movably connected between adjacent driven rods 606, and symmetrically distributed mounting holes 608 are opened at both ends of the slider 605, and the mounting holes 608 match the positioning holes 4.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the top of any group of limit plates 607 is provided with uniformly distributed anti-skid grooves, and the four corners of the limit plates 607 are provided with fixing holes 6071, and the fixing holes 6071 are installed with anchor rods 6072. When the bridge body is a beam bridge, the end support plates 2 and the middle support plates 1 are manually placed on the same horizontal line, and then the limit plates 706 on the end support plates 2 and the middle support plates 1 are fixed to the two sides of the crack through the anchor rods 7062. At this time, the tension spring 609 is in a stretched state, which can pull the limit plates 706 fixed on the two sides of the crack, thereby preventing the crack from expanding. The distance between adjacent middle support plates 1 is large, and the distance between adjacent middle support plates 1 is adjusted by the spacing adjustment mechanism 5 to adapt to the repair function of Lei Fengs of different lengths. When the distance between adjacent middle support plates 1 becomes larger, the telescopic rod 506 contracts and the compression spring 504 is further compressed. When the distance between adjacent middle support plates 1 becomes smaller, the compression spring 504 rebounds, and the telescopic rod 506 extends at this time. When the main body of the bridge is an arch bridge, the limit plate 706 at the top between the middle support plate 1 and the end support plate 2 is fixed to the bridge of the corresponding slope through the anchor rod 6072, so as to realize the repair of cracks in bridges with different curvatures.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The telescopic adjustment assembly 8 includes a first sleeve 801 fixedly mounted on the outer side wall of the end support plate 2, a first threaded positioning groove 802 provided on the outer side wall of the first sleeve 801, a first slide bar 803 slidably connected in the first sleeve 801, and a first positioning bolt 804 threadedly mounted in the first threaded positioning groove 802 and abutting against the first slide bar 803; Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The positioning and clamping assembly 7 includes a second sleeve 701 rotatably mounted on an end of the first slide bar 803 away from the first sleeve 801 and vertically arranged, a second threaded positioning groove 702 provided on the second sleeve 701, a second slide bar 703 slidably connected to the second sleeve 701, a second positioning bolt 704 threadedly mounted in the second threaded positioning groove 702 and abutting against the second slide bar 703, and a positioning rod 705 fixedly connected to the end of the second slide bar 703 away from the second sleeve 701. The second slide bar 803 is positioned by sliding the second slide bar 803 until the first slide bar 703 abuts against the side wall of the bridge, and then locking the second positioning bolt 804. The first slide bar 703 is then slid until the positioning rod 705 abuts against the top of the bridge, and then the first positioning bolt 704 is locked to position the first slide bar 703, thereby realizing the fixing function of the middle support plate 1 and the end support plate 2.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The second slide bar 703 is provided with evenly distributed third thread positioning grooves 706 , the third thread positioning grooves 706 are internally threadedly connected with third positioning bolts 707 , and the length of the limiting plate 607 is greater than the width of the end support plate 2 .

[0032] Specifically, when the bridge repair and fixing device based on bridge reconstruction is used: first, the angle between the middle support plate 1 and the end support plate 2 is adjusted to make it fit the bottom of the bridge body of different models; When the main body of the bridge is a beam bridge, the end support plates 2 and the middle support plates 1 are manually made to be on the same horizontal line, and then the limit plates 706 on the end support plates 2 and the middle support plates 1 are fixed on both sides of the crack through the anchor rods 7062. At this time, the tension spring 609 is in a stretched state, and can pull the limit plates 706 fixed on both sides of the crack to prevent the crack from expanding. At the same time, the distance between adjacent middle support plates 1 is adjusted by the spacing adjustment mechanism 5 to adapt to the repair function of bridges of different lengths. When the distance between adjacent middle support plates 1 becomes larger, the telescopic rod 506 contracts and the compression spring 504 is further compressed. When the distance between adjacent middle support plates 1 becomes smaller, the compression spring 504 rebounds, and the telescopic rod 506 extends at this time. When the main body of the bridge is an arch bridge, the limit plate 706 at the top between the middle support plate 1 and the end support plate 2 is fixed to the bridge of the corresponding slope through the anchor rod 6072 to repair the cracks of the bridge with different curvatures; Then, the second slide bar 803 is slid until the first slide bar 703 abuts against the side wall of the bridge, and then the second positioning bolt 804 is locked to position the second slide bar 803. Then, the first slide bar 703 is slid until the positioning rod 705 abuts against the top of the bridge, and then the first positioning bolt 704 is locked to position the first slide bar 703, thereby realizing the fixing function of the middle support plate 1 and the end support plate 2.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A bridge repair fixing device based on bridge reconstruction, comprising a middle support plate (1) and end support plates (2) rotatably connected to both ends of the middle support plate (1) and symmetrical with respect to the middle support plate (1), characterized in that: Also includes, The middle support plates (1) and the end support plates (2) are arranged in three groups side by side, and a spacing adjustment mechanism (5) is provided between adjacent middle support plates (1), and the spacing adjustment mechanism (5) is used to adjust the spacing between adjacent middle support plates (1) so as to be suitable for bridge bodies of different widths; A crack fixing assembly (6), wherein the limiting assembly (6) is arranged on top of the middle support plate (1) and the end support plate (2), and is used to pull both sides of the crack of the bridge body; A telescopic adjustment component (8), wherein the telescopic adjustment component (8) is mounted on an outer side wall of the end support plate (2); A positioning clamping assembly (7) is arranged at the telescopic end of the telescopic adjustment assembly (8) and is used for fitting and positioning the end support plate (2) with the bottom end of the bridge.

2. A bridge repair and fixing device based on bridge reconstruction according to claim 1, characterized in that: The spacing adjustment mechanism (5) comprises a first U-shaped seat (501) fixedly arranged on the outer wall of the middle support plate (1), a first sliding groove (502) provided at an end of the middle support plate (1) away from the first U-shaped seat (501), a second U-shaped seat (503) slidably connected to the inner wall of the first sliding groove (502), and an X-shaped rod (505) movably connected between adjacent middle support plates (1), wherein the four corners of the X-shaped rod (505) are movably connected to the first U-shaped seat (501) and the second U-shaped seat (503), respectively.

3. A bridge repair and fixing device based on bridge reconstruction according to claim 2, characterized in that: A telescopic rod (506) is movably connected between the first U-shaped seat (501) and the second U-shaped seat (503), and a compression spring (504) sleeved on the outer wall of the telescopic rod (506) is also connected between the first U-shaped seat (501) and the second U-shaped seat (503).

4. The bridge repair fixing device based on bridge reconstruction according to claim 1 is characterized in that: The tops of the middle support plate (1) and the end support plates (2) are both provided with empty slots (3), the crack fixing assembly (6) is located in the empty slots (3), and the outer side wall of the middle support plate (1) is symmetrically provided with evenly distributed positioning holes (4), the positioning holes (4) being in communication with the empty slots (3).

5. The bridge repair fixing device based on bridge reconstruction according to claim 4 is characterized in that: The crack fixing assembly (6) comprises a rotating rod (601) rotatably connected to the center of the middle support plate (1) through a thread, a holding plate (602) fixedly mounted at the bottom end of the rotating rod (601), an active rod (603) fixedly mounted at the top end of the rotating rod (601), a guide groove (604) symmetrically arranged at the top of the middle support plate (1), a slider (605) slidably connected to the inner wall of the guide groove (604), a driven rod (606) movably connected between the slider (605) and the active rod (603), a limit plate (607) fixedly mounted at the top of the slider (605), and a tension spring (609) movably connected between adjacent driven rods (606), and symmetrically distributed mounting holes (608) are arranged at both ends of the slider (605), and the mounting holes (608) match the positioning holes (4).

6. The bridge repair fixing device based on bridge reconstruction according to claim 5 is characterized in that: The top of any group of the limiting plates (607) is provided with evenly distributed anti-slip grooves, and fixing holes (6071) are provided at the four corners of the limiting plates (607), and anchor rods (6072) are installed in the fixing holes (6071).

7. The bridge repair fixing device based on bridge reconstruction according to claim 1 is characterized in that: The telescopic adjustment assembly (8) comprises a first sleeve (801) fixedly mounted on the outer wall of the end support plate (2), a first threaded positioning groove (802) provided on the outer wall of the first sleeve (801), a first sliding rod (803) slidably connected in the first sleeve (801), and a first positioning bolt (804) threadedly mounted in the first threaded positioning groove (802) and abutting against the first sliding rod (803).

8. The bridge repair fixing device based on bridge reconstruction according to claim 7 is characterized in that: The positioning clamping assembly (7) comprises a second sleeve (701) rotatably mounted on an end of the first sliding rod (803) away from the first sleeve (801) and vertically arranged, a second threaded positioning groove (702) provided on the second sleeve (701), a second sliding rod (703) slidably connected to the second sleeve (701), a second positioning bolt (704) threadedly mounted in the second threaded positioning groove (702) and abutting against the second sliding rod (703), and a positioning rod (705) fixedly connected to an end of the second sliding rod (703) away from the second sleeve (701).

9. The bridge repair fixing device based on bridge reconstruction according to claim 8, characterized in that: The second sliding rod (703) is provided with evenly distributed third threaded positioning grooves (706), and the third threaded positioning grooves (706) are internally threadedly connected with third positioning bolts (707).

10. The bridge repair fixing device based on bridge reconstruction according to claim 6, characterized in that: The length of the limiting plate (607) is greater than the width of the end support plate (2).

Citation Information

Patent Citations

  • Road bridge crack repairing and fixing device

    CN212025865U