A road bridge crack reinforcement device during highway construction

Abstract

The present invention relates to the technical field of bridge pavement crack reinforcement, and in particular to a road bridge crack reinforcement device during highway construction and an installation and use method thereof; a horizontal support assembly and an angle support rod are connected by a rotating shaft to achieve the function of adjusting the bridge deck clamping force and supporting stability; a pull rod passes through the bridge deck and is matched with a center nut to achieve the function of adjusting and locking the tensioning force of the horizontal support assembly and the angle support rod; a plurality of groups of the device are used in combination to solve the problem of crack stability of different types of plane parts or building materials.

Description

Technical Field

[0001] The invention relates to the technical field of bridge pavement crack reinforcement, and in particular to a road bridge crack reinforcement device during expressway construction. Background Art

[0002] As a basic component of the road system, bridges play an extremely important role in the modern transportation system. In particular, the modern urban road system, including traditional river-crossing bridges and highway overpasses, carries millions of vehicles every day. Once a bridge has a problem, it will directly affect the normal operation of the entire urban ecosystem. Cracks in the use of bridges are a common quality problem. Since most building materials are reinforced concrete structures with weak deformation resistance, the material properties themselves determine that simply filling the cracks cannot make up for the strength of the bridge structure, resulting in a reduction in the service life of the bridge. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a road bridge crack reinforcement device during highway construction in response to the above-mentioned technical deficiencies. The device is connected by a rotating shaft of a horizontal support assembly and an angle support rod to achieve the function of adjusting the clamping force of the bridge deck and supporting stability. A pull rod is passed through the bridge deck and then matched with a center nut to achieve the function of adjusting and locking the tensioning force of the horizontal support assembly and the angle support rod. By using multiple groups of the device in combination, the crack stability of different types of planar parts or building materials can be solved.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present invention is: comprising a horizontal support assembly, an angle support rod, a pressure plate, a tie rod and a connecting block, a pressure plate is welded to the top of the tie rod; after the tie rod passes through the bridge deck, a connecting block passes through the middle of the tie rod, and another connecting block passes through the bottom of the tie rod; a central nut is arranged at the bottom of the tie rod; a central spring passes through the tie rod between the two connecting blocks; one end of the horizontal support assembly is connected to the rotating shaft of the middle connecting block; one end of the angle support rod is connected to the rotating shaft of the bottom connecting block; the other end of the horizontal support assembly is connected to the rotating shaft of the other end of the angle support rod; a plurality of pairs of first ear plates are arranged on the circumference of the connecting block, and the first ear plates are all provided with first through holes; a central through hole is opened at the center of the connecting block; the tie rod passes through the central through hole;

[0005] Step 1: The horizontal support assembly, the angle support rod and the first ear plates corresponding to the middle and bottom connection blocks form a support unit; the middle connection block and the bottom connection block can also be connected by two staggered diagonal support rods; the diagonal support rods connected by two staggered rotating shafts form a support pair;

[0006] Step 2: The pull rod and the middle and bottom connecting blocks cooperate with the central spring and the central nut to form an adjustment unit;

[0007] Step 3: A-shaped connection mode: every two groups of adjustment units are connected by a group of supporting secondary rotating shafts; the other multiple first ear plates on the adjustment unit are all stabilized by multiple groups of supporting units;

[0008] B-shaped connection mode: equal to or greater than three groups of adjustment units are connected in pairs in sequence to form a closed polygonal shape, each two groups of adjustment units are connected by a group of supporting secondary rotating shafts, and the other multiple first ear plates on the adjustment units are stabilized by multiple groups of supporting units;

[0009] C-shaped connection method: a group of central adjustment units is set at the diagonal center position of every four groups of peripheral adjustment units, and the central adjustment unit is connected to the rotating shafts of other adjustment units through support pairs; every four adjacent peripheral adjustment units are connected through a group of support pair rotating shafts; the other multiple first ear plates on the peripheral adjustment units are stabilized by multiple groups of support units.

[0010] To further optimize the technical solution, the horizontal support assembly includes a horizontal support rod, a guide rod and a slider, a second ear plate is arranged on the top of the horizontal support rod; a support seat is arranged at one end of the horizontal support rod, and a fixed seat is arranged in the middle of the horizontal support rod; a guide rod passes through the support seat and the fixed seat; the top of the guide rod is threadedly connected to the fixed seat; a lateral spring passes through the guide rod between the slider and the support seat; a fourth ear plate and a guide hole are arranged on the slider, and the fourth ear plate is perpendicular to the axis of the guide hole; the guide rod passes through the guide hole.

[0011] To further optimize the technical solution, a third ear plate is provided at both ends of the angle support rod; one end of the angle support rod is connected to the fourth ear plate shaft through the third ear plate; the other end of the angle support rod is connected to the first ear plate shaft on the bottom connecting block through the third ear plate.

[0012] To further optimize the technical solution, a central thread is provided at the lower portion of the pull rod; the central thread cooperates with two central nut threads.

[0013] To further optimize the technical solution, the upper plane of the horizontal support assembly is coplanar with the upper plane of the connecting block.

[0014] To further optimize the technical solution, the combination of connection modes described is not limited to A-type, B-type, and C-type.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The horizontal support assembly and the angle support rod are connected to form a stable support through the rotation axis, and are combined with the pull rod to clamp and stabilize the bridge deck. The horizontal support assembly and the angle support rod are connected to the pull rod rotation axis through the middle and bottom connecting blocks respectively to form a right-angled triangle structure to achieve a more stable effect; a plurality of first ear plates are provided on the connecting block to realize a plurality of triangular stable structures, thereby increasing the stability of the device; 2. A plurality of horizontal support rods are connected to the rotation axis in the same plane as the connecting block. Since the upper end surface of the horizontal support rod is a plane, the contact area between the horizontal support assembly and the bridge deck is expanded; a plurality of first ear plates are provided on the connecting block to form a right-angled triangle structure to achieve a more stable effect; a plurality of first ear plates are provided on the connecting block to realize a plurality of triangular stable structures to increase the stability of the device; a plurality of horizontal support rods are connected to the rotation axis in the same plane as the connecting block, and because the upper end surface of the horizontal support rod is a plane, the contact area between the horizontal support assembly and the bridge deck is expanded; a plurality of The horizontal support assembly cooperates with the pressure plate to clamp the bridge deck together; 3. The pull rod passes through the center spring and cooperates with the two connecting blocks in the middle and bottom. The center nut cooperates with the thread on the pull rod to achieve quantitative compression of the entire center spring, so as to achieve the regulation of the bridge deck clamping force; 4. The lateral spring passes through the guide rod and acts on the slider through the angle support rod. The slider is on the guide rod with the lateral spring to achieve horizontal adjustment of the angle support rod, which enhances the adaptability to different uneven conditions of the bridge deck. In summary, this device can enhance the structural strength of the bridge, thereby extending the service life of the bridge, and the application scheme is suitable for stabilizing cracks in different types of flat parts or building materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the general assembly structure of this scheme.

[0017] Figure 2 This is a schematic diagram of the component connections for this solution.

[0018] Figure 3 This is a schematic diagram of the adjustment unit structure of this scheme.

[0019] Figure 4 This is a schematic diagram of the structural steel of the support unit of this scheme.

[0020] Figure 5 Schematic diagram of the supporting structure of this scheme

[0021] Figure 6 This is a structural diagram of the second specific implementation method of this scheme

[0022] Figure 7 This is a structural schematic diagram of the third specific implementation method of this solution.

[0023] Figure 8 This is a structural schematic diagram of a fourth specific implementation method of this solution.

[0024] Among them: 1. pull rod; 101. pressure plate; 102. center thread; 2. connecting block; 201. center through hole; 202. first ear plate; 203. first through hole; 3. horizontal support rod; 301. second ear plate; 302. fixing seat; 303. support seat; 4. angle support rod; 401. third ear plate; 5. center spring; 6. slider; 601. fourth ear plate; 602. guide hole; 7. guide rod; 8. lateral spring; 9. center nut; 11. diagonal support rod; 12. bridge deck; 13. horizontal support assembly; 14. support unit; 15. adjustment unit; 16. support pair. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0026] Specific implementation method 1: Figure 1-8As shown, it includes a horizontal support component 13, an angle support rod 4, a pressure plate 101, a tie rod 1 and a connecting block 2, and a pressure plate 101 is welded to the top of the tie rod 1; after the tie rod 1 passes through the bridge deck 12, a connecting block 2 is passed through the middle of the tie rod 1, and another connecting block 2 is passed through the bottom of the tie rod 1; a center nut 9 is arranged at the lower part of the tie rod 1; a center spring 5 is passed through the tie rod 1 between the two connecting blocks 2; one end of the horizontal support component 13 is connected to the rotating shaft of the middle connecting block 2; one end of the angle support rod 4 is connected to the rotating shaft of the bottom connecting block 2; the other end of the horizontal support component 13 is connected to the rotating shaft of the other end of the angle support rod 4; a plurality of pairs of first ear plates 202 are arranged on the circumference of the connecting block 2, and the first ear plates 202 are all provided with first through holes 203; a center nut 9 is opened at the center position of the connecting block 2 Through hole 201; the pull rod 1 passes through the central through hole 201; step one: the horizontal support assembly 13, the angle support rod 4 and the corresponding first ear plates 202 in the middle and bottom two groups of connecting blocks 2 form a group of support units 14; the middle connecting block 2 and the bottom connecting block 2 can also be connected by two staggered diagonal struts 11; the diagonal struts 11 connected by two staggered rotating shafts form a group of support pairs 16; step two: the pull rod 1 and the middle and bottom connecting blocks 2 are combined with the central spring 5 and the central nut 9 to form an adjustment unit 15; step three: A-type connection method: a group of support pairs 16 rotating shafts are used to connect every two groups of adjustment units 15; the other multiple first ear plates 202 on the adjustment unit 15 are all stabilized by multiple groups of support units 14; B-type connection method: etc. More than three groups of adjustment units 15 are connected in pairs to form a closed polygon, and each two groups of adjustment units 15 are connected by a set of support pairs 16 rotating shafts, and the other multiple first ear plates 202 on the adjustment unit 15 are stabilized by multiple groups of support units 14; C-shaped connection method: a group of central adjustment units 15 is set at the diagonal center position of every four groups of peripheral adjustment units 15, and the central adjustment unit 15 is connected to the rotating shafts of other adjustment units 15 through support pairs 16; the other multiple first ear plates 202 on the peripheral adjustment unit 15 are stabilized by multiple groups of support units 14; the horizontal support assembly 13 includes a horizontal support rod 3, a guide rod 7 and a slider 6, and a second ear plate 301 is set on the top of the horizontal support rod 3; a support seat 30 is set at one end of the horizontal support rod 3 3. A fixing seat 302 is arranged in the middle of the horizontal support rod 3; a guide rod 7 is passed through between the support seat 303 and the fixing seat 302; the top of the guide rod 7 is threadedly connected to the fixing seat 302; a lateral spring 8 is passed through the guide rod 7 between the slider 6 and the support seat 303; a fourth ear plate 601 and a guide hole 602 are arranged on the slider 6, and the fourth ear plate 601 is perpendicular to the axis of the guide hole 602; the guide rod 7 passes through the guide hole 602; third ear plates 401 are arranged at both ends of the angle support rod 4; one end of the angle support rod 4 is connected to the fourth ear plate 601 through the third ear plate 401 The shaft is connected; the other end of the angle support rod 4 is connected to the first ear plate 202 on the bottom connecting block 2 through the third ear plate 401; a central thread 102 is arranged at the lower part of the pull rod 1;The central thread 102 is threadedly matched with the two central nuts 9; the upper plane of the horizontal support assembly 13 is coplanar with the upper plane of the connecting block 2; the combination of the connection modes is not limited to A-type, B-type, and C-type. ;

[0027] When using, step one, such as Figure 1-4 As shown, before the bridge deck 12 is reinforced, the support units 14 and the adjustment units 15 can be assembled, so that multiple groups of support units 14 are connected around the adjustment units 15 through multiple groups of first ear plates 202 distributed in an annular manner in the middle and bottom connecting blocks 2, thereby forming an assembly consisting of one group of support units 14 and multiple groups of adjustment units 15; on the one hand, since the top surface of each group of support units 14 and the upper end surface of the middle connecting block 2 are set to be in the same plane, it is achieved that multiple groups of support units 14 together with the middle connecting block 2 form a larger action plane; on the other hand, when adjusting the clamping force on the bridge deck 12 Here, the support unit 14 and the adjustment unit 15 form a triangular balancing linkage mechanism, and the retractable mechanism composed of the middle connecting block 2, the center spring 5 and the bottom connecting block 2 mainly adjusts the clamping force of the device of this scheme on the bridge deck 12, and the lateral spring 8 in the support unit 14 drives the angle support rod 4 to swing through the horizontal movement of the slider 6, so as to realize the adaptation of the horizontal support component 13 to the axial movement of the adjustment unit 15, so as to maintain the dynamic adjustment of the support plane composed of the horizontal support component 13 and the middle connecting block 2, and form a relative tightening posture with the plane of the upper pressure plate 101 of the pull rod 1;

[0028] Step 2, when implementing the reinforcement operation on the bridge deck 12, first remove the center nut 9, then take out the tie rod 1 separately and insert its center thread 102 end from the crack on the bridge deck 12, and then implement the tie rod 1 through the middle connecting block 2, the center spring 5 and the bottom connecting block 2 under the bridge by the assembly of the support unit 14 and the adjustment unit 15. At this time, the crack of the bridge deck 12 is between the assembly of the support unit 14 and the adjustment unit 15 and the pressure plate 101, and the crack is completely covered by the pressure plate 101, and the upper surface of the pressure plate 101 is a smooth spherical arc surface, so it will not affect the passage of people and vehicles on the bridge; then The center nut 9 is threadedly engaged with the lower end of the pull rod 1, and the initial installation of the device of this scheme is completed; then, an axial force is applied to the connecting block 2 at the bottom of the adjusting unit 15, and the main clamping force is transmitted through the center spring 5, thereby pushing the middle connecting block 2 and the multiple groups of support units 14 distributed in an annular manner to jointly apply a force to the bridge deck 12; and the axial movement of the bottom connecting block 2 drives the angle support rod 4 to push the slider 6 to continuously apply a force to the lateral spring 8, thereby realizing the dynamic adaptation of the horizontal support component 13 to the uneven condition of the bridge deck 12 and applying different degrees of clamping force, thereby enhancing the structural strength of the linear cracks of the bridge.

[0029] When implementing different forms of crack reinforcement for the bridge deck 12, multiple groups of the present solution can be connected in different forms to achieve a more ideal reinforcement effect; here, as long as two or more groups of the middle connecting blocks 2 and the bottom connecting blocks 2 of the present solution device are connected through a set of supporting pairs 16, wherein the supporting pairs 16 are formed by connecting two staggered diagonal braces 11 with rotating shafts (such as Figure 5-6 shown).

[0030] Specific implementation method 2: The difference from specific implementation method 1 is that: Figure 6 As shown, two groups of devices of this scheme are used to form a linear joint reinforcement body, and the scheme is as follows: each two groups of adjustment units 15 are connected by a group of support pairs 16 rotating shafts, and the other multiple first ear plates 202 on the adjustment unit 15 are stabilized by multiple groups of support units 14.

[0031] Step 1, such as Figure 6 As shown, this embodiment is a reinforcement method for irregular short-length cracks on the bridge deck 12. Here, two devices of this solution can be arranged along the length direction of the crack. First, the two ends of the actual extension of the crack on the bridge deck 12 are found, and holes are drilled respectively according to the diameter of the long rod cylindrical surface of the tie rod 1;

[0032] Step 2: Take out the two tie rods 1 and insert them into the drilled through holes above the bridge deck 12, and then install other components below the bridge deck 12. Here, the middle adjustment units 15 of the two devices are connected to the middle and bottom connection blocks 2 through a support pair 16 rotating shaft, and the other support units 14 are used for stable clamping to form a linear joint reinforcement body. The advantage of adopting this scheme is that the devices of this scheme are installed at both ends of the linear crack, which can effectively block the further deterioration and extension of the crack. In addition, this scheme implements regional reinforcement of a larger area at both ends of the linear crack in the vertical direction of the linear crack and connects the two to form a joint reinforcement body through the support pair 16, so as to further implement reinforcement protection in a larger range around the crack.

[0033] Step three, according to the different positions of the linear cracks on the bridge deck 12, the adjusting units 15 at both ends of the linear cracks can be respectively implemented by rotating the center nut 9 to implement two different clamping forces of the device of this scheme. For the adjusting unit 15 near the bridge foundation side, the bottom connecting block 2 is greatly lifted by the center nut 9, and then further compressed by the center spring 5 and the lateral spring 8, or the center spring 5 and the lateral spring 8 use springs with greater stiffness, so as to achieve a greater clamping force on the bridge deck 12 on the foundation side. Similarly, in order to further increase the overall strength of the crack, the support unit 14 on the adjusting unit 15 near the bridge foundation side uses a horizontal support rod 3 with a larger length to expand the clamping range of the support unit 14 there. In this way, when people pass through the crack, the positive pressure on the bridge deck 12 is transmitted to the more stable bridge foundation through the support pair 16, and the concentrated force is dispersed and weakened by the support unit 14 with a larger protection range, thereby achieving effective protection of the bridge crack and enhancing the structural strength of the crack, and finally filling the crack of the bridge deck 12.

[0034] Specific implementation method 3: The difference from specific implementation methods 1 and 2 is that: Figure 7 As shown, three or more groups of the devices of the present scheme are used to form a combined reinforcement body of a closed figure, and the scheme is as follows: for example, each group of adjustment units 15 in the present scheme are connected in pairs in sequence to form a closed quadrilateral, and each two groups of adjustment units 15 are connected by a group of support pairs 16 rotating shafts, and the other multiple first ear plates 202 on the adjustment unit 15 are stabilized by multiple groups of support units 14.

[0035] The steps are as follows: Figure 7 As shown, this embodiment is a reinforcement method adopted for the situation where a long crack appears on the bridge deck 12 or a regional bridge collapse. Here, a closed-figure combined reinforcement body composed of multiple groups of devices of this scheme is used for reinforcement. It is only necessary to ensure that each adjustment unit 15 is connected to the other two adjustment units 15 in different directions at the same time. Similarly, the adjacent adjustment units 15 are connected by a support pair 16 to respectively connect the middle and bottom connecting blocks 2 to implement a rotation axis. The advantage of this scheme is that it can provide closed regional reinforcement protection for cracks or missing bridge decks 12 and a larger area around them. Furthermore, the length of all horizontal support rods 3 can be lengthened here, so that the external force on the cracks or missing bridge decks 12 can be dispersed through the closed-figure combined reinforcement body. Further, according to the principle of moment balance, the lengthened horizontal support rods 3 further disperse and weaken the concentrated force of the adjustment unit 15, thereby protecting the internal area of ​​the closed-figure combined reinforcement body and strengthening the structural strength.

[0036] Specific implementation method 4: The difference from specific implementation methods 1, 2 and 4 is that: Figure 8As shown, multiple groups of devices of this scheme are used to form a star-shaped combined reinforcement body, and the scheme is as follows: for example, a group of central adjustment units 15 are set at the diagonal center position of four groups of adjustment units 15, and the central adjustment units 15 are connected to the rotating shafts of other adjustment units 15 through support pairs 16; the other multiple first ear plates 202 on the peripheral adjustment units 15 are stabilized by multiple groups of support units 14.

[0037] Step 1: If Figure 8 As shown, this embodiment is a reinforcement method for the situation where multiple cracks appear in a certain area on the bridge deck 12. If such a situation occurs, it is very easy to cause the cracks to continue to expand and deteriorate to form a collapse in the middle. Here, a star-shaped joint reinforcement body composed of multiple groups of devices of this scheme is used for reinforcement; first, an annular area that can completely surround multiple cracks is found, and holes are drilled on the bridge deck 12 at the center of this annular area and at the reinforcement points outside the outer ring of the annular area, and the tie rods 1 are passed through all the holes on the bridge deck 12;

[0038] Step 2: Install and connect the star-shaped joint reinforcement body under the bridge deck 12. The adjustment unit 15 in the center is connected to all the adjustment units 15 on the outer ring through the support pair 16. The remaining support units 14 on each adjustment unit 15 play a common stabilizing role for the entire star-shaped joint reinforcement body. The clamping force of the adjustment mechanism 15 on the periphery of the star-shaped joint reinforcement body on the bridge deck 12 is the same, and is greater than the clamping force of the adjustment unit in the center of the star-shaped joint reinforcement body on the bridge deck 12. The advantage of this solution is to implement integral reinforcement at the center of the crack area, so that the protected area and other areas of the bridge form an integral structure, which can effectively avoid the malignant collapse of the crack center, and the force at the center of the star-shaped joint reinforcement body can pass through multiple groups of adjustment units 15 and support units 14 caused by multiple groups of ray-distributed support pairs 16, so as to protect the area on the bridge deck 12 that is about to collapse and strengthen the structural strength.

[0039] In summary, all the specific implementation methods described above present solutions for different forms of bridge cracks. When people and vehicles pass on the bridge, they can prevent the bridge cracks from further deteriorating, greatly disperse and reduce the stress concentration at the cracks and strengthen the bridge structure strength, thereby extending the overall service life of the bridge.

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A road bridge crack reinforcement device during highway construction, characterized in that: The invention comprises a horizontal support assembly (13), wherein the horizontal support assembly (13) comprises a horizontal support rod (3), a guide rod (7) and a slider (6); a second ear plate (301) is arranged at the top of the horizontal support rod (3); a support seat (303) is arranged at one end of the horizontal support rod (3); a fixing seat (302) is arranged in the middle of the horizontal support rod (3); a guide rod (7) passes through between the support seat (303) and the fixing seat (302); the top of the guide rod (7) is threadedly connected to the fixing seat (302); a second ear plate (301) is arranged at the top of the horizontal support rod (3 ... bottom of the horizontal support rod (3); a second ear plate (301) is arranged at the bottom of the horizontal support rod (3); a second ear plate (301) is arranged at the top of the horizontal support rod (3); a second ear plate (301) is arranged at the bottom of the horizontal support rod (3); a second ear plate (301) is arranged at the bottom of the horizontal support rod (3); a second ear plate (301) is arranged at the top of the horizontal support rod (3); a second ear plate (301) is arranged at the bottom of the horizontal support rod (3); a second ear plate (301) is arranged at the bottom of the horizontal support rod (3); a second ear plate (3 7) is penetrated by a lateral spring (8); a fourth ear plate (601) and a guide hole (602) are provided on the slider (6), and the fourth ear plate (601) is perpendicular to the axis of the guide hole (602); the guide rod (7) penetrates the guide hole (602); the angle support rod (4), the pressure plate (101), the pull rod (1) and the connecting block (2), and the pressure plate (101) is welded to the top of the pull rod (1); after the pull rod (1) penetrates the bridge deck (12), the middle of the pull rod (1) is penetrated by a connecting block (2), and the bottom of the pull rod (1) is penetrated by another connecting block (2); the lower part of the pull rod (1) A central nut (9) is provided; a central spring (5) is passed through the pull rod (1) between the two connecting blocks (2); one end of the horizontal support component (13) is connected to the rotating shaft of the middle connecting block (2); one end of the angle support rod (4) is connected to the rotating shaft of the bottom connecting block (2); the other end of the horizontal support component (13) is connected to the rotating shaft of the other end of the angle support rod (4); a plurality of pairs of first ear plates (202) are provided on the circumference of the connecting block (2), and the first ear plates (202) are all provided with first through holes (203); a central through hole (201 ); the pull rod (1) passes through the central through hole (201); the horizontal support assembly (13), the angle support rod (4) and the corresponding first ear plates (202) in the middle and bottom connection blocks (2) form a support unit (14); the middle connection block (2) and the bottom connection block (2) are connected by two staggered diagonal support rods (11); the diagonal support rods (11) connected by two staggered rotating shafts form a support pair (16); the pull rod (1) and the middle and bottom connection blocks (2) cooperate with each other through the central spring (5) and the central nut (9) to form an adjustment unit (15); A-shaped connection mode: every two groups of adjustment units (15) are connected by a set of supporting pairs (16) of rotating shafts; the other multiple first ear plates (202) on the adjustment units (15) are all stabilized by multiple groups of supporting units (14); B-shaped connection mode: equal to or greater than three groups of adjustment units (15) are connected in pairs in sequence to form a closed polygon, each two groups of adjustment units (15) are connected by a set of support pairs (16) rotating shafts, and the other multiple first ear plates (202) on the adjustment units (15) are stabilized by multiple groups of support units (14); C-shaped connection method: a group of central adjustment units (15) is arranged at the diagonal center position of every four groups of peripheral adjustment units (15); the central adjustment unit (15) is connected to the rotating shafts of other adjustment units (15) through a support pair (16); and the other multiple first ear plates (202) on the peripheral adjustment unit (15) are stabilized by multiple groups of support units (14).

2. A road bridge crack reinforcement device during highway construction according to claim 1, characterized in that: Both ends of the angle support rod (4) are provided with a third ear plate (401); one end of the angle support rod (4) is connected to the fourth ear plate (601) rotation axis via the third ear plate (401); and the other end of the angle support rod (4) is connected to the first ear plate (202) rotation axis on the bottom connection block (2) via the third ear plate (401).

3. The road bridge crack reinforcement device during highway construction according to claim 1 is characterized by: The lower part of the pull rod (1) is provided with a central thread (102); the central thread (102) is threadably matched with two central nuts (9).

4. The device for reinforcing cracks of a road or bridge during highway construction according to claim 1, characterized in that: The upper plane of the horizontal support assembly (13) is coplanar with the upper plane of the connection block (2).

5. The road bridge crack reinforcement device during highway construction according to claim 1 is characterized in that: Not limited to the combination of A-type, B-type, and C-type connection methods.

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