Bridge crack repair device and method

Abstract

The application relates to the technical field of bridge repair, in particular to a bridge crack repairing device and method, which comprises a pressing mechanism, a feeding mechanism, a gluing mechanism and a sliding block. An operator loads a material roll with sealing material into the feeding mechanism, then glues the side surface of the gluing mechanism by using the feeding mechanism, adjusts the included angle of the pressing mechanism, and then sequentially presses and pastes the sealing material on the cleaned crack surface, and then circulates the pressing spring of the pressing mechanism to press and assist the pasting, until the sealing material is firmly pasted, then continues to insert the material pipe into the crack, pours the slurry into the crack, grinds the sealing material and burrs after the slurry is dried, and completes the repair. The device can effectively adapt to different bridge repair positions, simultaneously effectively fill the slurry, has good practicability and economy, and is beneficial to the promotion and use of the device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge repair, and in particular to a bridge crack repair device and method. BACKGROUND

[0002] During use, the bridge deck, bridge bottom and bridge pier are prone to cracks due to age, climate and other reasons. In the existing crack repair method, after crack treatment, resin glue is applied to the surface area of the crack, and a feeding pipe is used to fill the crack. However, due to the influence of crack width during resin glue filling, the filling amount at different positions is not the same, which cannot completely fill the gap during slurry transportation, resulting in poor repair effect. The resin glue ages quickly during subsequent use, which cannot meet the required support requirements. In addition, the filling effect cannot be detected during resin glue filling, which can easily cause air leakage in some areas. Even if the repair is performed, the plugging effect will be greatly reduced. SUMMARY

[0003] In order to solve the above problems existing in the prior art, the present application aims to provide a bridge crack repair device and method with simple structure, which can repair different positions of the bridge deck and better realize crack grouting.

[0004] The technical scheme adopted by the present application is as follows: a bridge crack repair device, comprising a pressing mechanism, the pressing mechanism comprising two groups of symmetrically arranged rotating shafts, the rotating shafts being provided with two groups of rotating discs in the middle, the rotating shafts penetrating and being slidingly connected to the rotating discs, a pressing spring being arranged between the two groups of rotating discs, one of the two groups of rotating shafts being provided with a distance adjusting piece near the end, the distance adjusting piece being used to adjust the expansion angle between the two groups of rotating shafts.

[0005] The two ends of the rotating shaft are provided with extension plates, and the rotating shaft penetrates and is rotationally connected to the extension plates.

[0006] A feeding mechanism is arranged on the two groups of extension plates, the feeding mechanism being used to provide sealing material, the feeding mechanism comprising a limiting plate arranged on one side of the symmetric shaft away from the pressing mechanism, a conical block being arranged on the opposite side of the two groups of limiting plates, the conical block penetrating and being slidingly connected to the center of the limiting plate, a positioning plate being arranged on the side of the limiting plate away from the conical block, the positioning plate being connected to the limiting plate by a supporting rod, a thrust spring being arranged between the conical block and the positioning plate, a positioning connecting rod being further arranged on the positioning plate, the positioning connecting rod being fixedly connected to the proximal extension plate.

[0007] The two groups of extension plates are also provided with cutting members for cutting the wrapping material, the cutting member comprises an arc-shaped cutting protection plate, the arc-shaped cutting protection plate is fixedly connected at both ends to the adjacent extension plates, the rotating shaft is also provided with rotating rods at both ends, the rotating shaft penetrates and is rotatably connected to the rotating rods, an arc-shaped cutter is arranged between the two groups of rotating rods, the arc-shaped cutter is abuttable to the outer arc surface of the arc-shaped cutting protection plate when the rotating shaft rotates, the arc-shaped cutter is also provided with an abutment thrust rod, the abutment thrust rod has an L-shaped structure in cross section, one end of the abutment thrust rod is fixedly connected to the arc-shaped cutter, and the other end of the abutment thrust rod is used for abutting against the support surface of the equipment.

[0008] In an embodiment, the distance adjusting member comprises a groove sliding plate, a through active groove is arranged in the middle of the groove sliding plate, a fixed ring is arranged at one end of the rotating shaft close to the groove sliding plate, a fixed bolt is arranged in the fixed ring, the fixed bolt penetrates and is slidingly connected to the active groove, and fixed nuts are arranged at both ends of the fixed bolt and are rotatably connected to the fixed bolt.

[0009] In an embodiment, a pushing pull rod is arranged between the two groups of extension plates for pushing the pressing spring to move.

[0010] In an embodiment, the end surface of the arc-shaped cutter towards the arc-shaped cutting protection plate is a bevel, which is used for gradually abutting against the arc surface of the arc-shaped cutting protection plate from one end of the arc-shaped cutting protection plate to shear the sealing material.

[0011] In an embodiment, a gluing mechanism is also arranged between the two groups of extension plates on the rotating shaft, the gluing mechanism comprises extension connecting plates arranged on one side of the extension plates, a rotating main shaft is arranged between the two groups of extension connecting plates, a gluing roller is arranged in the middle of the rotating main shaft, a liquid storage tank is arranged on one side of the gluing roller, the side wall of the gluing roller penetrates into the inner cavity of the liquid storage tank, box connecting rods are arranged at both ends of the liquid storage tank and are connected to the adjacent extension connecting plates.

[0012] In an embodiment, a sliding guide rod is arranged on the side of the arc-shaped cutting protection plate away from the support surface of the equipment, the sliding guide rod is fixedly connected to the arc-shaped cutting protection plate by connecting blocks at both ends, a sliding block is arranged in the middle of the sliding guide rod, a through groove is arranged in the middle of the sliding block, and interference-preventing notches are arranged on the adjacent end sides of the two groups of sliding blocks to facilitate the movement of the two groups of sliding blocks towards each other.

[0013] In an embodiment, a bridge crack repairing method is also provided, and the specific method is as follows:

[0014] S1. Clean the bridge crack and knock off the easy-to-crack structure at the edge;

[0015] S2. After the partial sealing material is processed, the sealing material is attached to both sides of the crack in a transverse direction, and one point of the crack is marked;

[0016] S3. After another sealing material is processed, one side is guided and limited along the marked point, and the other side is sequentially pressed and attached along the crack direction;

[0017] S4. After repeating multiple groups, all crack areas are completely attached, a material pipe is punched at several marked points, edge sealing is performed, and after solidification treatment, the sealing performance is tested;

[0018] S5. After the sealing performance is qualified, the slurry is poured into one of the material pipes, and after the slurry of the remaining material pipes overflows, it is left to stand, and the grouting is repeated multiple times;

[0019] S6. After the complete slurry is completely dry, the sealing material and the rough surface of the slurry are polished, and the repair is completed.

[0020] In one embodiment, in step S3, the attachment direction is parallel lapping; or staggered lapping.

[0021] The beneficial effects of the present application are: the present application is a bridge crack repair device and method which is simple in structure, can repair different positions of the bridge deck, and can better realize crack grouting, and the specific implementation method is as follows:

[0022] The operator first winds the sealing material on the material reel, presses the tapered block inclined surface of the material reel after pressing the tapered block into the material reel, and fixes it. Then the sealing material is wound around the surface of the glue roller, and then falls into the pressing spring below through the gap between the arc-shaped cutter and the arc-shaped cutting protection plate, and the attachment can be started: holding the push rod with both hands, the pressing spring abuts against the sealing material to attach the crack surface, and the rotating shaft rolls on the required attachment surface to drive the pressing spring to press the sealing material to attach the crack. In the process of moving the sealing material, the glue in the liquid storage tank is applied to the sealing material by the glue roller, and after reaching the attachment position, the rotating shaft away from the attachment end is raised along the rotating shaft of the attachment end, so that the abutting push rod abuts against the required attachment surface, and then the arc-shaped cutter is rotated along the axis of the rotating shaft, so that the sealing material between the arc-shaped cutting protection plate and the arc-shaped cutter is cut open from the abutting position, and the fracture of the sealing material is realized. Then the pressing spring is reciprocally moved to assist in pressing and attaching;

[0023] Before the lower piece of sealing material is attached, the device is moved to the initial pressing position, the sliding blocks on the sliding guide rods are moved so that the intersection of the through grooves of the two sets of sliding blocks is at the crack, and the through hole between the through grooves of the two sets of sliding blocks is marked. When the lower piece of sealing material is attached, the sealing material is pressed on one side of the marked area. The above process is repeated until the sealing material is completely attached. The sealing material is pressed by another sealing material, making it more attached to the crack surface and better resistant to pressure, which facilitates grouting treatment.

[0024] After the sealing material is attached and solidified, all crack areas are completely attached. A material pipe is inserted at several marked points and the edge is sealed. Each crack must have at least one grouting pipe, an exhaust pipe, and a slurry outlet pipe. After solidification, such as waiting for the glue to dry or heating to make the sealing material completely attach to the crack surface, the sealing performance is tested. Before testing, a layer of soap water is applied along the crack. Compressed air is introduced through the material pipe. If there is air leakage, it should be repaired and sealed until there is no leakage. After the sealing performance is qualified, the slurry is introduced into one of the material pipes. After the slurry overflows from the remaining material pipes, it is left to stand. The grouting process is repeated multiple times. When on a bridge deck, multiple groups of grouting pipes can simultaneously deliver material until the grouting is full. When the slurry outlet pipe overflows, the multiple groups of material pipes are sealed. When on a bridge pier, the grouting should be done in a top-down sequence. After the sealing performance is qualified, the slurry is introduced into one of the material pipes. After the slurry overflows from the remaining material pipes, it is left to stand. The grouting process is repeated multiple times. When on a bridge deck, multiple groups of grouting pipes can simultaneously deliver material until the grouting is full. When the slurry outlet pipe overflows, the multiple groups of material pipes are sealed. When on a bridge pier, the grouting should be done in a top-down sequence. After the slurry is completely dry, the rough surface of the sealing material and the slurry is polished, and the repair is completed.

[0025] At the same time, due to the location of some cracks in the arc surface area of the pier, the curvature of the crack can cause the pressing spring to bend during attachment, achieving the same pressing effect. The above pressing and cutting process can be repeated.

[0026] Due to the different widths of cracks at different locations, the sealing material needs to resist different pressures when filling the slurry. In areas with smaller cracks, parallel lapping arrangement can be used, otherwise staggered lapping arrangement can be used. If parallel lapping texture is required, only one side of the pressing spring can be used, otherwise two sets of pressing springs can be used alternately. At the same time, in order to better improve the lapping strength of the staggered lapping, the angle and spacing between the two sets of rotating shafts can be changed before pressing by rotating the rotating shafts. After the fixed bolt in the movable groove of the sliding plate is tightened and the nut is positioned, the angle and pressing length of the left and right alternating pressing can be changed, thereby increasing the lapping area and enhancing the lapping ability, which facilitates pressure bearing.

[0027] The device has the advantages of simple structure, effective utilization of the bending of the pressing spring to effectively match the multiple areas of the crack, utilization of the shearing structure to cooperate with the sliding block to match the crack of different widths with different matching modes, guarantee that the crack will not fall off during pressure grouting, effective realization of complete grouting of the crack, good practicability and economy, and facilitation of the promotion and use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described in detail below in combination with the drawings and specific implementation methods.

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of the application;

[0030] Figure 2 is a schematic diagram of the pressing mechanism of the application;

[0031] Figure 3 is a schematic diagram of the gluing mechanism of the application;

[0032] Figure 4 is a schematic diagram of the three-dimensional structure of the application;

[0033] Figure 5 is a schematic diagram of the sliding block of the application;

[0034] Figure 6 is a schematic diagram of the feeding mechanism of the application.

[0035] The drawings show that: 1, the pressing mechanism; 11, the rotating shaft; 111, the fixed ring; 112, the concave groove sliding plate; 1121, the movable concave groove; 113, the fixed nut; 114, the fixed bolt; 12, the rotating disc; 13, the arc-shaped cutting protection plate; 131, the sliding guide rod; 132, the connecting block; 133, the sliding block; 134, the anti-interference notch; 135, the through groove; 14, the extension plate; 15, the push pull rod; 16, the pressing spring; 2, the feeding mechanism; 21, the conical block; 211, the thrust spring; 22, the limiting plate; 23, the positioning plate; 231, the positioning connecting rod; 25, the material reel; 3, the gluing mechanism; 31, the rotating rod; 32, the arc-shaped cutter; 33, the abutting thrust rod; 34, the liquid storage tank; 341, the tank connecting rod; 35, the gluing roller; 36, the extension connecting plate; 361, the rotating main shaft. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application, i.e., the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] The specific embodiments of the present application are described below with reference to the accompanying drawings and Figures 1-6 A bridge crack repair device includes a pressing mechanism 1, the pressing mechanism 1 includes two groups of symmetrically arranged rotating shafts 11, the rotating shafts 11 are provided with two groups of rotating discs 12 in the middle, the rotating shafts 11 penetrate and are slidingly connected to the rotating discs 12, the two groups of rotating discs 12 are provided with pressing springs 16, the circumferential diameter of the pressing springs 16 can be larger than that of the rotating discs 12, the number of helical lines of the pressing springs 16 is relatively large, a simple drawing method is adopted in the drawings, and mainly the installation position is shown, one of the two groups of rotating shafts 11 is provided with a distance adjusting piece near the proximal end, and the distance adjusting piece is used to adjust the expansion included angle between the two groups of rotating shafts 11.

[0039] Beneficially, the distance adjusting piece includes a groove sliding plate 112, the groove sliding plate 112 is provided with a through movable groove 1121 in the middle, the rotating shaft 11 is provided with a fixed ring 111 near one end close to the groove sliding plate 112, the fixed ring 111 is provided with a fixed bolt 114 inside, the fixed bolt 114 penetrates and is slidingly connected to the movable groove 1121, and the two ends of the fixed bolt 114 are provided with fixed nuts 113, and the fixed nuts 113 are rotationally connected to the fixed bolt 114.

[0040] Beneficially, the two ends of the rotating shaft 11 are provided with extension plates 14, the rotating shaft 11 penetrates and is rotatably connected to the extension plates 14, a pushing pull rod 15 is arranged between the two groups of extension plates 14, used to push the pressing spring 16 to move, beneficially, the two groups of extension plates 14 are provided with a feeding mechanism 2, the feeding mechanism 2 is used to provide sealing materials, such as asphalt cloth, polypropylene cloth, etc., which can be determined according to the actual crack width and the repair position, the feeding mechanism 2 comprises a limiting plate 22 arranged on one side of the extension plate 14 away from the symmetry axis of the pressing mechanism 1, a taper block 21 is arranged on the opposite side of the two groups of limiting plates 22, the taper block 21 penetrates and is slidingly connected to the center of the limiting plate 22, a positioning plate 23 is arranged on the side of the limiting plate 22 away from the taper block 21, the positioning plate 23 is connected to the limiting plate 22 by a supporting rod, a pushing spring 211 is arranged between the taper block 21 and the positioning plate 23, the material reel 25 with sealing materials can be clamped between the two groups of taper blocks by pressing the pushing spring 211, which is convenient for pulling, the positioning plate 23 is further provided with a positioning connecting rod 231, the positioning connecting rod 231 is fixedly connected to the adjacent extension plate 14.

[0041] Beneficially, the two groups of extension plates 14 are also provided with a cutting material piece, used to cut the wrapping material, the cutting material piece comprises an arc-shaped cutting protection plate 13, the two ends of the arc-shaped cutting protection plate 13 are fixedly connected to the adjacent extension plate 14, the two ends of the rotating shaft 11 are also provided with a rotating rod 31, the rotating shaft 11 penetrates and is rotatably connected to the rotating rod 31, an arc-shaped cutter 32 is arranged between the two groups of rotating rods 31, the arc-shaped cutter 32 is rotatable on the rotating shaft 11 and can abut against the outer arc surface of the arc-shaped cutting protection plate 13, the arc-shaped cutter 32 is further provided with an abutting pushing rod 33, the abutting pushing rod 33 has an L-shaped structure in cross section, one end of the abutting pushing rod 33 is fixedly connected to the arc-shaped cutter 32, and the other end of the abutting pushing rod 33 away from the arc-shaped cutter 32 is used to abut against the equipment supporting surface, specifically, the end surface of the arc-shaped cutter 32 facing the arc-shaped cutting protection plate 13 is a bevel surface, used to gradually abut against the arc surface of the arc-shaped cutting protection plate 13 from one end of the arc-shaped cutting protection plate 13, forming a structure similar to an arc-shaped scissors, which can cut the sealing materials, at the same time, the sealing materials can also be segmented in advance and wrapped in the material reel 25.

[0042] In the implementation, the rotating shaft 11 away from the fitting end is lifted along the rotating shaft 11 of the fitting end, so that the abutting pushing rod 33 abuts against the required fitting surface, and then continues to be lifted, the abutting pushing rod 33 drives the arc-shaped cutter 32 to rotate along the axis of the rotating shaft 11, so that the sealing materials between the arc-shaped cutting protection plate 13 and the arc-shaped cutter 32 are cut from the abutting position, that is, the rupture of the sealing materials can be realized.

[0043] Beneficially, the two groups of extension plates 14 on the rotating shaft 11 are also provided with a gluing mechanism 3, which includes extension connecting plates 36 provided on one side of the extension plates 14, and a rotating main shaft 361 provided between the two groups of extension connecting plates 36, and a glue roller 35 provided in the middle of the rotating main shaft 361, and a liquid storage tank 34 provided on one side of the glue roller 35. The liquid storage tank 34 can be a covered tank or an open tank, depending on the location of the equipment repair, such as bridge deck or bridge pier, etc. When the equipment is placed horizontally, it can be open, and when it is placed vertically, it can be covered for convenience. When covered, attention should be paid to the amount of glue added to avoid missing the glue. The side wall of the glue roller 35 is connected to the inner cavity of the liquid storage tank 34, and the two ends of the liquid storage tank 34 are provided with tank connecting rods 341 connected to the adjacent extension connecting plates 36.

[0044] Beneficially, the arc-shaped cutting protection plate 13 is provided with a sliding guide rod 131 on the side away from the equipment support surface, and the two ends of the sliding guide rod 131 are fixedly connected to the arc-shaped cutting protection plate 13 by connecting blocks 132, and a sliding block 133 is provided in the middle of the sliding guide rod 131, and a through groove 135 is provided in the middle of the sliding block 133, and a non-interference notch 134 is provided on the adjacent end side of the two groups of sliding blocks 133 to facilitate the movement of the two groups of sliding blocks 133 towards each other, forming a scissors-like effect to cut the sealing material.

[0045] Beneficially, it also includes a bridge crack repair method, the specific method is as follows:

[0046] S1. Clean the bridge crack, and knock off the easy-to-crack structure on the edge;

[0047] S2. After processing part of the sealing material, it is horizontally attached to both sides of the crack, and one point of the crack is marked. Use a steel wire brush to clean the concrete surface within a certain range along the crack direction, carefully remove the cement dregs, moss, and dust. For the parts with poor concrete surface quality and more fine cracks on both sides of the joint, clean to 8-10 cm wide, use a hammer and steel drill to remove the loose concrete blocks and sand particles on both sides, expose the solid concrete surface, and continue to wipe the concrete surface with acetone or alcohol to clean the oil stains and dust;

[0048] S3. After processing another sealing material, one side is guided and limited by the mark point, and the other side is sequentially pressed and attached to the upper group of sealing materials along the crack direction;

[0049] S4. Repeat multiple groups until all crack areas are completely attached. Insert the material pipe at several marked points and seal the edge. Each crack must have at least one grouting material pipe, exhaust material pipe, and grouting material pipe, and after curing treatment, such as waiting for the glue to dry or heating to make the sealing material completely attach to the crack surface, test the sealing performance. Before testing, apply a layer of soapy water along the crack, and introduce compressed air from the material pipe. If there is air leakage, it should be repaired and sealed until there is no leakage.

[0050] S5. After the sealing performance is qualified, the slurry is poured into one of the pouring pipes until the slurry overflows from the remaining pouring pipes, and then the pouring is repeated for multiple times. When pouring on the bridge deck, multiple groups of pouring pipes can simultaneously pour the slurry until the pouring is full, and then the pouring pipes are sealed. When pouring on the bridge pier, the pouring should be performed from bottom to top.

[0051] S6. After the slurry is completely dry, the sealing material and the rough surface of the slurry are polished, and the repair is completed.

[0052] Beneficially, in step S3, the adhering direction is parallel lapping or staggered lapping, which is determined according to the adhering gap.

[0053] The working principle of the present application is as follows:

[0054] The operator first winds the sealing material on the material reel 25, presses the two ends of the material reel 25 against the tapered block inclined surface, and extrudes the push spring 211, so that the tapered block enters the material reel 25, and then the sealing material is wound around the surface of the glue roller 35, and then falls into the gap between the arc-shaped cutter 32 and the arc-shaped cutting protection plate 13 below the pressing spring 16, and the adhering can be started. After holding and pushing the push rod 15 with both hands, the pressing spring 16 abuts against the sealing material to adhere to the crack surface, and the pressing spring 16 is pressed to adhere to the crack by rotating the rotating shaft 11 on the required adhering surface. In the process of moving the sealing material, the glue in the liquid storage tank 34 is applied to the sealing material by the glue roller 35, and after reaching the adhering position, the rotating shaft 11 away from the adhering end is raised along the rotating shaft 11 of the adhering end, so that the abutting push rod 33 abuts against the required adhering surface, and then the arc-shaped cutter 32 is rotated along the axis of the rotating shaft 11 by continuously rotating and raising the abutting push rod 33, so that the sealing material between the arc-shaped cutting protection plate 13 and the arc-shaped cutter 32 is cut open at the abutting position, and then the pressing spring 16 is reciprocally moved to assist the pressing and adhering.

[0055] Before adhering the lower piece of sealing material, the device is moved to the initial pressing position, the sliding block 133 on the sliding guide rod 131 is moved, the intersection of the through grooves 135 of the two groups of sliding blocks 133 is the crack, and the through hole between the through grooves 135 of the two groups of sliding blocks 133 is marked. When adhering the lower piece of sealing material, one side of the sealing material is pressed against the marked area, and the above process is repeated until the complete adhering is achieved. The sealing material is pressed by the other sealing material to adhere to the crack surface and better resist the pressure, which is convenient for grouting treatment.

[0056] After the sealing material to be pasted is cured, until completely pasting all the crack areas, the material feeding pipe is punched at several marked points and edge sealing is performed, and at least one grouting material feeding pipe, exhaust pipe and grouting pipe must be provided for each crack, and after curing treatment, such as waiting for the glue to dry or heating to make the sealing material completely adhere to the crack surface, the sealing performance is tested, a layer of soapy water is coated along the crack before leakage test, compressed air is fed through the material feeding pipe, and any place leaking air should be repaired and sealed until no leakage occurs, after the sealing performance is qualified, the grouting material is fed into one of the material feeding pipes, until the grouting material of the remaining material feeding pipes overflows, and then the grouting is repeated for multiple times, when on the bridge deck, multiple groups of grouting material feeding pipes can simultaneously feed material until the grouting is full, and after the grouting pipe overflows, the multiple groups of material feeding pipes are sealed; when on the bridge pier, the grouting should be performed in sequence from bottom to top, after the sealing performance is qualified, the grouting material is fed into one of the material feeding pipes, until the grouting material of the remaining material feeding pipes overflows, and then the grouting is repeated for multiple times, when on the bridge deck, multiple groups of grouting material feeding pipes can simultaneously feed material until the grouting is full, and after the grouting pipe overflows, the multiple groups of material feeding pipes are sealed; when on the bridge pier, the grouting should be performed in sequence from bottom to top, after the grouting material is completely dry, the sealing material and the rough surface of the grouting material are polished, and the repair is completed.

[0057] At the same time, since part of the crack positions are located in the arc surface area of the bridge pier, when pasting, the curvature can make the pressing spring 16 bend to achieve the same pressing effect, and the above pressing and cutting process can be repeated.

[0058] Since the crack width at different positions needs to resist different pressures when the grouting material is filled, parallel lap arrangement can be used in the area with smaller cracks, otherwise staggered lap arrangement can be used, if parallel lap texture needs to be pasted, one side of the pressing spring 16 can be used alone, otherwise two groups of pressing springs 16 are used to press alternately, at the same time, in order to better improve the pasting strength of the staggered lap, the angle and spacing between the two groups of rotating shafts 11 can be changed by rotating the rotating shaft 11 before pressing, after the fixed bolt 114 in the movable groove sliding plate 112 is positioned by tightening the fixed nut 113, the angle and pressing length during left-right alternate pressing are changed, so as to improve the pasting area and enhance the pasting ability, and facilitate pressure bearing.

[0059] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] The above is only an example and description of the structure of the present application, and those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, as long as they do not deviate from the structure of the present application or the scope defined by the claims of the present application, which shall belong to the protection scope of the present application.

Claims

1. A bridge crack repair device, characterized in that: The device includes a pressing mechanism (1), which includes two sets of symmetrically arranged rotating shafts (11). Two sets of rotating disks (12) are provided in the middle of the rotating shafts (11). The rotating shafts (11) pass through and are slidably connected to the rotating disks (12). A pressing spring (16) is provided between the two sets of rotating disks (12). An adjusting member is provided at one of the close ends of the two sets of rotating shafts (11). The adjusting member is used to adjust the expansion angle between the two sets of rotating shafts (11). The rotating shaft (11) has extension plates (14) at both ends, and the rotating shaft (11) passes through and is rotatably connected to the extension plates (14); The two sets of extension plates (14) are provided with a feeding mechanism (2), which is used to provide sealing material. The feeding mechanism (2) includes a limiting plate (22) located on the side of the extension plate (14) away from the axis of symmetry of the pressing mechanism (1). The two sets of limiting plates (22) are provided with a conical block on opposite sides. The conical block (21) passes through and is slidably connected to the center of the limiting plate (22). The limiting plate (22) away from the conical block (21) is provided with a positioning plate (23). The positioning plate (23) is connected to the limiting plate (22) by a support rod. A thrust spring (211) is provided between the conical block (21) and the positioning plate (23). The positioning plate (23) is also provided with a positioning connecting rod (231). The positioning connecting rod (231) is fixedly connected to the adjacent extension plate (14). The two sets of extension plates (14) are also provided with cutting components for cutting wrapping materials. The cutting components include arc-shaped cutting protection plates (13). The two ends of the arc-shaped cutting protection plates (13) are fixedly connected to the adjacent extension plates (14). The two ends of the rotating shaft (11) are also provided with rotating rods (31). The rotating shaft (11) passes through and is rotatably connected to the rotating rods (31). An arc-shaped cutter (32) is provided between the two sets of rotating rods (31). The arc-shaped cutter (32) rotates on the rotating shaft (11) and can abut against the outer arc surface of the arc-shaped cutting protection plate (13). The arc-shaped cutter (32) is also provided with abutting thrust rod (33). The abutting thrust rod (33) has an L-shaped cross-section. One end of the abutting thrust rod (33) is fixedly connected to the arc-shaped cutter (32). The end of the abutting thrust rod (33) away from the arc-shaped cutter (32) is used to abut against the equipment support surface.

2. The bridge crack repair device according to claim 1, characterized in that: The adjusting component includes a grooved sliding plate (112), the grooved sliding plate (112) has a through movable groove (1121) in the middle, the rotating shaft (11) has a fixing ring (111) at one end near the grooved sliding plate (112), the fixing ring (111) has a fixing bolt (114) inside, the fixing bolt (114) is inserted into and slidably connected to the movable groove (1121), the fixing bolt (114) has fixing nuts (113) at both ends, and the fixing nuts (113) are rotatably connected to the fixing bolt (114).

3. The bridge crack repair device according to claim 1, characterized in that: A push rod (15) is provided between the two sets of extension plates (14) to push the compression spring (16) to move.

4. The bridge crack repair device according to claim 1, characterized in that: The end face of the arc-shaped cutter (32) facing the arc-shaped cutting protection plate (13) is inclined, so as to gradually abut against the arc surface of the arc-shaped cutting protection plate (13) from one end of the arc-shaped cutting protection plate (13) to cut the sealing material.

5. The bridge crack repair device according to claim 3, characterized in that: A glue-applying mechanism (3) is also provided between the two sets of extension plates (14) on the rotating shaft (11). The glue-applying mechanism (3) includes an extension connecting plate (36) located on one side of the extension plate (14). A rotating spindle (361) is provided between the two sets of extension connecting plates (36). A glue-applying roller (35) is provided in the middle of the rotating spindle (361). A liquid storage tank (34) is provided on one side of the glue-applying roller (35). The side of the glue-applying roller (35) passes into the inner cavity of the liquid storage tank (34). A tank connecting rod (341) is provided at both ends of the liquid storage tank (34). The tank connecting rod (341) is connected to the adjacent extension connecting plate (36).

6. The bridge crack repair device according to claim 4, characterized in that: The arc-shaped cutting protection plate (13) is provided with a sliding guide rod (131) on the side away from the equipment support surface. The two ends of the sliding guide rod (131) are fixedly connected to the arc-shaped cutting protection plate (13) by connecting blocks (132). The sliding guide rod (131) is provided with a sliding block (133) in the middle. The sliding block (133) is provided with a through groove (135) in the middle. The two sets of sliding blocks (133) are provided with anti-interference notches (134) on the near ends to facilitate the two sets of sliding blocks (133) to move towards each other.

7. A method for repairing bridge cracks, using the bridge crack repair device as described in any one of claims 1-6, characterized in that: The specific method is as follows: S1. Clean the cracks in the bridge and break up any easily cracked structures at the edges; S2. After processing part of the sealing material, apply it laterally to both sides of the crack and mark one point of the crack; S3. After processing another sealing material, guide and limit one side along the marked point, and press the upper sealing material along the crack direction on the other side to fit; S4. Repeat multiple sets until all crack areas are completely covered. Insert the feed tube at several marked points and seal the edges. After curing, test the sealing performance. S5. After the sealing performance is qualified, the grout is introduced into one of the feed pipes until the grout overflows from the other feed pipes. Then, let it stand and repeat the grouting process several times. S6. After the slurry has completely dried, polish the sealant and the rough surface of the slurry to complete the repair.

8. The method for repairing bridge cracks according to claim 7, characterized in that: In step S3, the bonding direction is either parallel overlap or staggered overlap.

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