Crack detection device for road and bridge maintenance

Abstract

The invention relates to the technical field of road and bridge maintenance, and discloses a crack detection device for road and bridge maintenance, the crack detection device comprises a supporting assembly, a supporting piece, a supporting frame, a movable frame and a mounting frame, the supporting frame is provided with a sliding groove, the movable frame slides in the sliding groove, and the mounting frame is fixed at the top of the movable frame; the adjusting assembly is connected with the supporting assembly and comprises a rotating part, the rotating part is arranged on the supporting frame and comprises a rotating frame, a rotating plate, a movable rod, a guide shaft, a toothed plate and a rack, the rotating frame is arranged at the bottom of the movable frame, the rotating plate is rotationally connected into the rotating frame, and the movable rod is located at the bottom of the rotating plate. The crack detection device has the beneficial effects that through the arrangement of the supporting assembly, the detection head can be stably supported at a high position, and the position of the detection head can be conveniently moved and adjusted through the adjusting assembly, so that the detection head can be aligned with a crack at the high position.

Description

Technical Field

[0001] This invention relates to the field of road and bridge maintenance technology, and in particular to a crack detection device for road and bridge maintenance. Background Technology

[0002] Road and bridge maintenance requires regular inspection of cracks. Cracks can be detected early, when they first appear or are in their early stages of development. At this point, repair measures are relatively inexpensive and can effectively prevent further crack expansion. Crack width meters are typically used for inspection. These instruments, consisting of a detection head and display screen, measure the width of cracks precisely using specific measurement principles. When inspecting cracks at higher locations, the detection head needs to be used with an extension rod. When the user lifts the detection head to the crack using the extension rod, its position needs to be calibrated to align it with the crack. However, due to the height of the extension rod, it is difficult for the user to move the detection head while maintaining stability. Furthermore, the height makes it difficult to clearly observe the relative position of the detection head and the crack, making the calibration process extremely inconvenient and potentially requiring multiple attempts to roughly align the head with the crack, wasting time and effort. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned crack detection devices for road and bridge maintenance, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that it is difficult to align the detection head with the crack when detecting cracks at high altitudes.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a crack detection device for road and bridge maintenance, comprising a support assembly, including a support member, including a support frame, a movable frame and a mounting frame, wherein the support frame is provided with a sliding groove, the movable frame slides in the sliding groove, and the mounting frame is fixed to the top of the movable frame; An adjustment component, connected to the support component, includes a rotating element disposed on the support frame. It comprises a rotating frame, a rotating plate, a movable rod, a guide shaft, a toothed plate, and a rack. The rotating frame is disposed at the bottom of the movable frame. The rotating plate is rotatably connected within the rotating frame. The movable rod is located at the bottom of the rotating plate. The guide shaft is fixed to the top of the movable rod. A guide groove is provided on the rotating plate, and the guide shaft slides within the guide groove. The toothed plate is fixed to one end of the movable rod and movably connected within the rotating frame. The rack is fixed to the inner side of the support frame and cooperates with the toothed plate. The adjustment assembly further includes a trigger element disposed on one side of the rotating component, comprising a rotating rod, a movable sleeve, a push rod, a positioning plate, a support sleeve, a top rod, and a support column. The rotating rod is fixed to one side of the rotating plate and movably connected to the rotating frame. The movable sleeve is located on one side of the rotating rod. One side of the push rod is fixed to the movable sleeve, and the other side contacts the rotating rod. The positioning plate is inserted into the movable sleeve. The support sleeve is located outside the positioning plate. The top rod is inserted into the support sleeve. One end of the support column is fixed to the movable frame, and the positioning plate is movably connected to the outside of the support column.

[0006] In a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, the support assembly further includes a fixing member disposed on the support member, comprising a suction cup, a fixing rod, a button, a connecting rod, a movable plate, and a pressing plate. The suction cup is located on one side of the support frame, the two ends of the fixing rod are respectively fixed to the suction cup and the support frame, the button is located on one side of the suction cup, one end of the connecting rod is fixed to the button, the movable plate is fixed to the other end of the connecting rod, and the pressing plate is fixed to the bottom of the movable plate.

[0007] As a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, the support assembly further includes a pusher, disposed at the bottom of the support assembly, comprising a fixed sleeve, a first spring, an extension rod, a locking block, and a pressing disc. The fixed sleeve is fixed to the inner side of the rotating frame, the first spring is fixed to the inner top wall of the fixed sleeve, the extension rod is inserted into the fixed sleeve and fixed to the bottom end of the first spring, the locking block is fixed to one side of the extension rod, the pressing disc is fixed to the outer side of the locking block, and a locking groove is provided on the fixed sleeve, wherein the locking block slides within the locking groove.

[0008] In a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, the support assembly further includes a locking element disposed within the movable frame, comprising a limiting post, a support plate, a fixing block, and a second spring. The limiting post is located within the movable frame, and a limiting groove is formed within the support frame. The limiting post engages with the limiting groove. The support plate is fixed within the movable frame, and the limiting post is movably connected to the support plate. The fixing block is fixed to one end of the support plate, and both ends of the second spring are fixed to the fixing block and the support plate, respectively.

[0009] As a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, the locking component further includes a squeezing rod, a limiting block, a push column, and a force-bearing rod. The squeezing rod is inserted into the movable frame, the limiting block is located inside the squeezing rod, the push column is inserted into the squeezing rod, the force-bearing rod is fixed to one side of the push column, and a force-bearing groove is provided on the limiting block.

[0010] In a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, a positioning block is fixed inside the support sleeve, a third spring is fixed to the top of the positioning block, the top end of the third spring is fixed to the top rod, a fourth spring is fixed to the bottom of the positioning block, and the bottom end of the fourth spring is fixed to the positioning plate.

[0011] As a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, a first connecting block is fixed on one side of the support sleeve, a guide block is fixed on one side of the mounting frame, and the bottom of the guide block is inclined.

[0012] As a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, a second connecting block is fixed to one side of the movable sleeve, a guide rod is fixed to one side of the movable frame, the top of the guide rod is inclined, and a limit strip is fixed to the top of the guide rod.

[0013] In a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, a positioning strip is fixed at the bottom of the movable frame, a positioning groove is provided on the rotating frame, and the positioning strip slides within the positioning groove.

[0014] As a preferred embodiment of the crack detection device for road and bridge maintenance described in this invention, it further includes a detection component connected to the support component, comprising a detection head and a detection instrument. The detection head is fixed to the top of the mounting frame by bolts, and the detection instrument is connected to the detection head.

[0015] The beneficial effects of this invention are as follows: by setting up the support component, the detection head can be stably supported at a high position, and by adjusting the component, the position of the detection head can be easily moved and adjusted, thereby aligning the detection head with the crack at a high position. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an overall diagram of a crack detection device used for road and bridge maintenance.

[0017] Figure 2 Structural diagram of the support component for a crack detection device used in road and bridge maintenance.

[0018] Figure 3 A partial structural diagram of the support frame for a crack detection device used in road and bridge maintenance, viewed from below.

[0019] Figure 4 Crack detection device for road and bridge maintenance Figure 3 Enlarged view of the structure at point A in the middle.

[0020] Figure 5 Crack detection device for road and bridge maintenance Figure 3 Enlarged view of the structure at point B in the middle.

[0021] Figure 6 A cross-sectional structural diagram of the support frame for a crack detection device used in road and bridge maintenance.

[0022] Figure 7 Crack detection device for road and bridge maintenance Figure 6 Enlarged view of the structure at point C.

[0023] Figure 8 Crack detection device for road and bridge maintenance Figure 6 Enlarged view of the structure at point D.

[0024] Figure 9 A structural diagram of the movable frame of a crack detection device for road and bridge maintenance.

[0025] Figure 10 Crack detection device for road and bridge maintenance Figure 9 Enlarged view of the structure at point E in the middle.

[0026] Figure 11 A top-view cross-sectional view of the rotating frame of a crack detection device for road and bridge maintenance.

[0027] In the diagram: 200, Support assembly; 201, Support component; 201a, Support frame; 201b, Movable frame; 201c, Mounting bracket; 201a-1, Slide groove; 101, Detection head; 300, Adjustment assembly; 301, Rotating component; 301a, Rotating frame; 301b, Rotating plate; 301c, Movable rod; 301d, Guide shaft; 301e, Gear plate; 301f, Rack; 301b-1, Guide... 302, trigger element; 302a, rotating rod; 302b, movable sleeve; 302c, push rod; 302d, positioning plate; 302e, support sleeve; 302f, top rod; 302g, support column; 202, fixing element; 202a, suction cup; 202b, fixing rod; 202c, button; 202d, connecting rod; 202e, movable plate; 202f, pressing plate; 203, pushing element; 203 a. Fixing sleeve; 203b. First spring; 203c. Extension rod; 203d. Locking block; 203e. Extrusion plate; 203a-1. Slot; 204. Locking element; 204a. Limiting post; 204b. Support plate; 204c. Fixing block; 204d. Second spring; 201a-2. Limiting groove; 204e. Extrusion rod; 204f. Limiting block; 204g. Push post; 204h. Force-bearing rod ; 204f-1, Force groove; 302e-1, Positioning block; 302e-2, Third spring; 302e-3, Fourth spring; 302e-4, First connecting block; 302e-5, Guide block; 302b-1, Second connecting block; 302b-2, Guide rod; 302b-3, Limiting strip; 301g, Positioning strip; 301a-1, Positioning groove; 100, Detection assembly; 102, Detector. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0031] Reference Figure 3 , Figure 6 , Figure 9 and Figure 11 This is the first embodiment of the present invention. This embodiment provides a crack detection device for road and bridge maintenance. The crack detection device for road and bridge maintenance includes a support assembly 200, including a support member 201, including a support frame 201a, a movable frame 201b, and a mounting frame 201c. The support frame 201a has a sliding groove 201a-1. The movable frame 201b slides in the sliding groove 201a-1. The mounting frame 201c is fixed to the top of the movable frame 201b.

[0032] A stabilizing block is fixed to the top of the movable frame 201b, and a stabilizing groove is provided on the top wall of the slide 201a-1. The stabilizing block slides in the stabilizing groove. The two work together to limit the movable frame 201b and prevent it from rotating during movement. When the detection head 101 is fixed to the mounting frame 201c, the support frame 201a is lifted upward and brought into contact with the bridge body at a higher position. The support frame 201a is perpendicular to the bridge body crack. At this time, the detection head 101 will fit against the bridge body. After the support frame 201a is connected and fixed to the bridge body, the detection head 101 can be supported and fixed. This allows the movable frame 201b to move in the slide 201a-1 and move the detection head 101. The position of the detection head 101 is calibrated and adjusted so that the detection head 101 can be aligned with the bridge body crack.

[0033] The adjusting component 300, connected to the support component 200, includes a rotating component 301 mounted on the support frame 201a. It comprises a rotating frame 301a, a rotating plate 301b, a movable rod 301c, a guide shaft 301d, a toothed plate 301e, and a rack 301f. The rotating frame 301a is located at the bottom of the movable frame 201b. The rotating plate 301b is rotatably connected within the rotating frame 301a. The movable rod 301c is located at the bottom of the rotating plate 301b. The guide shaft 301d is fixed to the top of the movable rod 301c. A guide groove 301b-1 is provided on the rotating plate 301b, and the guide shaft 301d slides within the guide groove 301b-1. The toothed plate 301e is fixed to one end of the movable rod 301c and movably connected within the rotating frame 301a. The rack 301f is fixed to the inner side of the support frame 201a and cooperates with the toothed plate 301e.

[0034] The guide groove 301b-1 is arc-shaped, and there are four toothed plates 301e, which are evenly distributed in a ring at the bottom of the rotating plate 301b. The number of guide shafts 301d and movable rods 301c corresponds to the number of toothed plates 301e. In the initial state, the toothed plates 301e do not mesh with the rack 301f. At this time, the position of the movable frame 201b and the detection head 101 can be moved quickly. When the detection head 101 is close to the crack...

[0035] The rotating plate 301b will rotate, causing the guide shaft 301d to slide within the guide groove 301b-1. Through their cooperation, the movable rod 301c and the toothed plate 301e will move, causing the toothed plate 301e to move outward from the rotating frame 301a and engage with the rack 301f. At this time, the movable frame 201b and the detection head 101 cannot move. Only when the rotating frame 301a rotates will it cause the toothed plate 301e to move on one side of the rack 301f. In turn, the rotating frame 301a can drive the movable frame 201b and the detection head 101 to move. At this time, the movement of the detection head 101 is relatively slow and can stop at a designated position at any time. Thus, the position of the detection head 101 can be finely adjusted so that the detection head 101 can be aligned with the crack in the bridge body.

[0036] A stabilizing rod is fixed to the inner wall of the rotating frame 301a. The stabilizing rod is movably connected to the movable rod 301c and is used to position the movable rod 301c to prevent it from shifting during movement.

[0037] The adjustment assembly 300 also includes a trigger 302, which is disposed on one side of the rotating component 301. It includes a rotating rod 302a, a movable sleeve 302b, a push rod 302c, a positioning plate 302d, a support sleeve 302e, a top rod 302f, and a support column 302g. The rotating rod 302a is fixed to one side of the rotating plate 301b and is movably connected to the rotating frame 301a. The movable sleeve 302b is located on one side of the rotating rod 302a. One side of the push rod 302c is fixed to the movable sleeve 302b, and the other side contacts the rotating rod 302a. The positioning plate 302d is inserted into the movable sleeve 302b. The support sleeve 302e is located outside the positioning plate 302d. The top rod 302f is inserted into the support sleeve 302e. One end of the support column 302g is fixed to the movable frame 201b, and the positioning plate 302d is movably connected to the outside of the support column 302g.

[0038] The top of the top rod 302f is cone-shaped so that it can be inserted into the crack of the bridge body. There are two support columns 302g, which are fixed on one side of the movable frame 201b and the mounting frame 201c respectively, and are used to support and position the positioning plate 302d so that it can move up and down synchronously when it moves. When the support frame 201a is fixed to the bridge body at a high position, the top of the top rod 302f will fit tightly against the bridge body.

[0039] When the movable frame 201b moves, it simultaneously drives the top rod 302f to move on the bridge body. When the detection head 101 is about to approach the crack in the bridge body, the top rod 302f will contact the crack first, and the top of the top rod 302f will insert into the crack. At this time, the top rod 302f cannot move further. When the movable frame 201b continues to move, it will cause the top rod 302f to move closer to the position of the movable frame 201b. The top rod 302f will drive the support sleeve 302e and the positioning plate 302d to move, and the positioning plate 302d will drive the movable sleeve 302b to move. When the movable sleeve 302b moves closer to the position of the movable frame 201b, it will drive the push rod 302c to squeeze the side of the rotating rod 302a, thereby pushing the rotating rod 302a to move. Then, the rotating plate 301b can be rotated through the rotating rod 302a. Example

[0040] Reference Figures 3-11 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, the support assembly 200 also includes a fixing member 202, which is disposed on the support member 201. It includes a suction cup 202a, a fixing rod 202b, a button 202c, a connecting rod 202d, a movable plate 202e, and a pressing plate 202f. The suction cup 202a is located on one side of the support frame 201a. The two ends of the fixing rod 202b are fixed to the suction cup 202a and the support frame 201a, respectively. The button 202c is located on one side of the suction cup 202a. One end of the connecting rod 202d is fixed to the button 202c. The movable plate 202e is fixed to the other end of the connecting rod 202d. The pressing plate 202f is fixed to the bottom of the movable plate 202e.

[0042] There are two sets of fixing components 202, located on both sides of the support frame 201a. The suction cup 202a is a lithium-ion suction cup with strong suction force, which can still adhere to and fix the bridge body even if it is not smooth. The fixing rod 202b is used to connect and fix the suction cup 202a to the support frame 201a. The button 202c is located at the bottom of the suction cup 202a switch. When the button 202c moves upward and presses the suction cup 202a switch, the suction cup 202a will be activated and adhere to the bridge body. In this way, the support frame 201a and the bridge body can be fixed by the suction cup 202a. When the button 202c presses the suction cup 202a switch again, the suction cup 202a will separate from the bridge body. The working principle of the suction cup 202a is existing technology, and this solution will not elaborate further.

[0043] A first stabilizing column is fixed at the bottom of the support frame 201a. The first stabilizing column is movably connected to the movable plate 202e and is used to position the movable plate 202e. A fifth spring is fixed at the top of the movable plate 202e. The top of the fifth spring is fixed to the support frame 201a. The fifth spring supports the movable plate 202e and applies a pushing force to it so that it can return to its original position after moving.

[0044] The support frame 201a has two second stabilizing columns fixed on its bottom sides. The second stabilizing columns are movably connected to the pressing plate 202f and are used to position the pressing plate 202f.

[0045] When the pressing plate 202f moves upward, it pushes the movable plate 202e to move upward. The movable plate 202e drives the button 202c to move upward through the connecting rod 202d, so that the button 202c presses the suction cup 202a switch. At this time, the support frame 201a can be fixed to the bridge body through the suction cup 202a, thereby supporting the detection head 101.

[0046] Specifically, the support assembly 200 also includes a pusher 203, which is disposed at the bottom of the support assembly 201. The pusher includes a fixed sleeve 203a, a first spring 203b, an extension rod 203c, a locking block 203d, and a pressing disc 203e. The fixed sleeve 203a is fixed to the inner side of the rotating frame 301a. The first spring 203b is fixed to the inner top wall of the fixed sleeve 203a. The extension rod 203c is inserted into the fixed sleeve 203a and fixed to the bottom end of the first spring 203b. The locking block 203d is fixed to one side of the extension rod 203c. The pressing disc 203e is fixed to the outer side of the locking block 203d. A slot 203a-1 is provided on the fixed sleeve 203a, and the locking block 203d slides in the slot 203a-1.

[0047] The extension rod 203c is multi-segment telescopic. The support frame 201a can be lifted upwards by the extension rod 203c and the support frame 201a can be brought into contact with the bridge body at a higher position. Through the cooperation of the locking block 203d and the locking groove 203a-1, the extension rod 203c is connected to the fixed sleeve 203a, so that the extension rod 203c can drive the fixed sleeve 203a to rotate, and can also move up and down within the fixed sleeve 203a.

[0048] The support frame 201a is lifted upward by the extension rod 203c. When the support frame 201a comes into contact with the bridge body, the first spring 203b can apply a buffer to it, thereby avoiding a strong impact when the detection head 101 comes into contact with the bridge body.

[0049] After the support frame 201a is fixed to the bridge body, push the extension rod 203c upward. The extension rod 203c drives the extrusion plate 203e to move upward through the locking block 203d. In this way, the extrusion plate 203e can push the pressing plate 202f to move upward. When it is necessary to separate the support frame 201a from the bridge body, simply push the extension rod 203c upward again.

[0050] Specifically, the support assembly 200 also includes a locking element 204, which is disposed within the movable frame 201b. The locking element includes a limiting post 204a, a support plate 204b, a fixing block 204c, and a second spring 204d. The limiting post 204a is located within the movable frame 201b. A limiting groove 201a-2 is formed within the support frame 201a. The limiting post 204a engages with the limiting groove 201a-2. The support plate 204b is fixed within the movable frame 201b. The limiting post 204a is movably connected to the support plate 204b. The fixing block 204c is fixed to one end of the support plate 204b. The two ends of the second spring 204d are fixed to the fixing block 204c and the support plate 204b, respectively.

[0051] The support plate 204b is used to support and position the limiting post 204a. When the limiting post 204a engages with the limiting groove 201a-2, the position of the movable frame 201b can be locked by the cooperation of the two, so as to prevent the movable frame 201b from moving inside the support frame 201a when the support frame 201a is lifted upward, which would cause the support frame 201a to tilt.

[0052] When the fixed block 204c is released from its restriction, the second spring 204d pushes the fixed block 204c to move, causing the fixed block 204c to move the limiting post 204a. This allows the limiting post 204a to separate from the limiting groove 201a-2, thereby releasing the restriction on the movable frame 201b and enabling the movable frame 201b to move.

[0053] There are multiple limiting grooves 201a-2, which are evenly distributed in a straight line within the support frame 201a. By setting multiple limiting grooves 201a-2, the movable frame 201b can be locked at any position.

[0054] Specifically, the locking component 204 also includes a pressing rod 204e, a limiting block 204f, a push column 204g, and a force-bearing rod 204h. The pressing rod 204e is inserted into the movable frame 201b, the limiting block 204f is located inside the pressing rod 204e, the push column 204g is inserted into the pressing rod 204e, the force-bearing rod 204h is fixed to one side of the push column 204g, and a force-bearing groove 204f-1 is provided on the limiting block 204f.

[0055] The extrusion rod 204e is inclined on one side and has a movable groove. The limiting block 204f is movably connected to the movable groove. The top of the limiting block 204f is inclined on one side and a sixth spring is fixed on one side of the limiting block 204f.

[0056] When the extension rod 203c moves upward, it will simultaneously push the compression rod 204e to move upward, and the compression rod 204e will press the fixed block 204c by its inclined surface, thereby pushing the fixed block 204c to move. In turn, the fixed block 204c can drive the limiting post 204a to engage with the limiting groove 201a-2.

[0057] At the same time, the top inclined surface of the limiting block 204f will contact the bottom of the movable frame 201b and be squeezed to move into the movable groove. When the squeezing rod 204e drives the limiting block 204f to move into the movable frame 201b, the sixth spring pushes the limiting block 204f to move outward and the bottom of the limiting block 204f to contact the inner wall of the movable frame 201b. This can limit the squeezing rod 204e so that the squeezing rod 204e can always squeeze the fixed block 204c, thereby keeping the limiting post 204a and the limiting groove 201a-2 in a locked state.

[0058] The inner wall of the force groove 204f-1 is inclined, the force rod 204h is L-shaped, and the bottom end can penetrate to the outside of the extrusion rod 204e. The push column 204g is tightly connected to the extrusion rod 204e. Without a strong thrust, the push column 204g will not move inside the extrusion rod 204e.

[0059] When the extension rod 203c moves upward again, it will push the pressing rod 204e upward again. At this time, the pressing rod 204e will drive the top of the push column 204g to contact the inner top wall of the movable frame 201b. As the pressing rod 204e continues to move upward, it will cause the push column 204g to move downward and press the inclined surface of the inner wall of the force groove 204f-1. Through the cooperation of the two, the limiting block 204f can be moved, thereby releasing the limitation of the limiting block 204f on the pressing rod 204e. When the extension rod 203c moves downward, the pressing rod 204e will move downward synchronously and separate from the fixed block 204c, thereby releasing the limitation of the fixed block 204c.

[0060] When the push column 204g moves downward, it will simultaneously drive the force rod 204h downward, and the bottom end of the force rod 204h will penetrate to the outside of the extrusion rod 204e. When the extrusion rod 204e moves downward a specified distance and the bottom of both sides contacts the inner bottom wall of the movable frame 201b, the bottom end of the force rod 204h will contact the inner bottom wall of the movable frame 201b. As the force rod 204h continues to move downward, the force rod 204h will be subjected to force and move upward, thereby driving the push column 204g upward and separating the push column 204g from the force groove 204f-1, thereby releasing the restriction on the limiting block 204f, so that the limiting block 204f can lock the extrusion rod 204e again.

[0061] When the extension rod 203c is pushed upward twice, and it is necessary to fix the support frame 201a to the bridge body, the extension rod 203c is pushed upward to a greater height. Therefore, when the compression rod 204e moves, it can drive the push column 204g to contact the inner top wall of the movable frame 201b.

[0062] When it is necessary to separate the support frame 201a from the bridge body, the extension rod 203c is pushed upward to a smaller height, so as to avoid the push column 204g from contacting the inner top wall of the movable frame 201b.

[0063] Specifically, a positioning block 302e-1 is fixed inside the support sleeve 302e, a third spring 302e-2 is fixed at the top of the positioning block 302e-1, the top of the third spring 302e-2 is fixed to the top rod 302f, a fourth spring 302e-3 is fixed at the bottom of the positioning block 302e-1, and the bottom of the fourth spring 302e-3 is fixed to the positioning plate 302d.

[0064] The third spring 302e-2 is used to support the push rod 302f, so that the push rod 302f can be inserted into the crack when it comes into contact with the crack. The fourth spring 302e-3 is used to support the support sleeve 302e, so as to prevent the support sleeve 302e from falling down. Example

[0065] Reference Figures 1-11 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0066] Specifically, a first connecting block 302e-4 is fixed on one side of the support sleeve 302e, and a guide block 302e-5 is fixed on one side of the mounting bracket 201c. The bottom of the guide block 302e-5 is inclined.

[0067] When the support sleeve 302e approaches the movable frame 201b, it will drive the first connecting block 302e-4 to move along the bottom slope of the guide block 302e-5. Through the cooperation of the two, the support sleeve 302e can move downward, and through the movable frame 201b, it will drive the top rod 302f to move downward, so that the top rod 302f can be separated from the crack in the bridge body, and thus will not hinder the subsequent movement of the movable frame 201b.

[0068] Specifically, a second connecting block 302b-1 is fixed on one side of the movable sleeve 302b, and a guide rod 302b-2 is fixed on one side of the movable frame 201b. The top of the guide rod 302b-2 is inclined, and a limit strip 302b-3 is fixed on the top of the guide rod 302b-2.

[0069] When the movable sleeve 302b approaches the movable frame 201b, it will simultaneously drive the second connecting block 302b-1 to move along the top inclined surface of the guide rod 302b-2. Through the cooperation of the two, the movable sleeve 302b and the push rod 302c can be driven to move upward, so that the height of the movable sleeve 302b and the push rod 302c is higher than that of the rotating rod 302a, thus not hindering the rotation of the rotating rod 302a.

[0070] The limiting strip 302b-3 is inclined on one side. When the second connecting block 302b-1 crosses the limiting strip 302b-3, the limiting strip 302b-3 can limit the second connecting block 302b-1, preventing it from moving in the opposite direction.

[0071] Specifically, a positioning strip 301g is fixed at the bottom of the movable frame 201b, and a positioning groove 301a-1 is provided on the rotating frame 301a, with the positioning strip 301g sliding in the positioning groove 301a-1.

[0072] The rotating frame 301a is rotatably connected to the movable frame 201b through the cooperation of the positioning strip 301g and the positioning groove 301a-1.

[0073] Specifically, it also includes a detection component 100 connected to the support component 200, including a detection head 101 and a detector 102. The detection head 101 is fixed to the top of the mounting bracket 201c by bolts, and the detector 102 is connected to the detection head 101.

[0074] The detection head 101 and the detector 102 are connected by a connecting line. The detection head 101 is used to detect cracks in the bridge body, and the detector 102 is used to analyze the cracks. This is existing technology, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0075] In summary, the crack detection device for road and bridge maintenance has the following advantages: The detection head 101 can be attached and fixed to the bridge body at a high position, so that it can move smoothly on the surface of the bridge body when moving, without the need for the user to manually support the detection head 101; There are two adjustment states when calibrating and adjusting the position of the detection head 101: First state: The detection head 101 can be moved quickly, so that the detection head 101 can quickly approach the crack; Second state: The position of the detection head 101 can be finely adjusted so that the detection head 101 can be aligned with the crack. Through the above two adjustment states, the detection head 101 can be quickly and accurately aligned with the crack. When the detection head 101 comes into contact with the bridge body at a high position, it can be buffered by the first spring 203b to avoid the detection head 101 from having a strong impact with the bridge body.

[0076] In use, the support frame 201a is lifted upwards by the extension rod 203c, so that the support frame 201a contacts the bridge body at a higher position and is perpendicular to the crack in the bridge body. At the same time, the top rod 302f is positioned between the crack in the bridge body and the detection head 101. Then, the extension rod 203c is pushed upwards, and the extension rod 203c drives the extrusion plate 203e to move upwards through the locking block 203d. This allows the extrusion plate 203e to push the pressing plate 202f upwards. When the pressing plate 202f moves upwards, it pushes the movable plate 202e upwards. The movable plate 202e drives the button 202c upwards through the connecting rod 202d, so that the button 202c presses the suction cup 202a switch. At this time, the support frame 201a is fixed to the bridge body by the suction cup 202a, thus supporting the detection head 101. At the same time, the limiting post 204a separates from the limiting groove 201a-2.

[0077] At this time, the extension rod 203c drives the movable frame 201b. When the movable frame 201b moves, it will simultaneously drive the top rod 302f to move on the bridge body. When the detection head 101 is about to approach the crack in the bridge body, the top rod 302f will contact the crack in the bridge body first, and the top of the top rod 302f will insert into the crack in the bridge body. At this time, the top rod 302f can no longer move. When the movable frame 201b continues to move, it will cause the top rod 302f to move closer to the position of the movable frame 201b. The top rod 302f drives the support sleeve 302e and the positioning plate 302d to move, and the positioning plate 302d drives the movable sleeve 302b to move. When the movable sleeve 302b moves closer to the position of the movable frame 201b, it will drive the push rod 302c to squeeze the side of the rotating rod 302a, thereby pushing the rotating rod 302a to move. Then, the rotating rod 302a can drive the rotating plate 301b to rotate.

[0078] When the rotating plate 301b rotates, it causes the guide shaft 301d to slide within the guide groove 301b-1. Through their cooperation, the movable rod 301c and the toothed plate 301e move, causing the toothed plate 301e to move outward from the rotating frame 301a and engage with the rack 301f. At this time, the movable frame 201b and the detection head 101 cannot move. Only when the rotating frame 301a rotates will it cause the toothed plate 301e to move on one side of the rack 301f. In turn, the rotating frame 301a can drive the movable frame 201b and the detection head 101 to move. At this time, the movement of the detection head 101 is relatively slow and can stop at a designated position at any time. Thus, the position of the detection head 101 can be finely adjusted so that the detection head 101 can be aligned with the crack in the bridge body.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A crack detection device for road and bridge maintenance, characterized in that: include, The support assembly (200) includes a support member (201), which includes a support frame (201a), a movable frame (201b), and a mounting bracket (201c). The support frame (201a) has a sliding groove (201a-1), the movable frame (201b) slides in the sliding groove (201a-1), and the mounting bracket (201c) is fixed to the top of the movable frame (201b). An adjusting component (300), connected to the support component (200), includes a rotating element (301) disposed on the support frame (201a). It comprises a rotating frame (301a), a rotating plate (301b), a movable rod (301c), a guide shaft (301d), a gear plate (301e), and a rack (301f). The rotating frame (301a) is disposed at the bottom of the movable frame (201b), the rotating plate (301b) is rotatably connected to the rotating frame (301a), and the movable rod (301c) is located within the rotating frame (201a). At the bottom of the rotating plate (301b), the guide shaft (301d) is fixed to the top of the movable rod (301c). The rotating plate (301b) is provided with a guide groove (301b-1). The guide shaft (301d) slides in the guide groove (301b-1). The toothed plate (301e) is fixed to one end of the movable rod (301c) and is movably connected to the rotating frame (301a). The rack (301f) is fixed to the inside of the support frame (201a) and cooperates with the toothed plate (301e).

2. The crack detection device for road and bridge maintenance as described in claim 1, characterized in that: The adjustment assembly (300) further includes a trigger (302) disposed on one side of the rotating component (301), comprising a rotating rod (302a), a movable sleeve (302b), a push rod (302c), a positioning plate (302d), a support sleeve (302e), a top rod (302f), and a support column (302g). The rotating rod (302a) is fixed to one side of the rotating plate (301b) and is movably connected to the rotating frame (301a). The movable sleeve (302b) is located on one side of the rotating rod (302a). One side of the push rod (302c) is fixed to the movable sleeve (302b), and the other side is in contact with the rotating rod (302a). The positioning plate (302d) is inserted into the movable sleeve (302b). The support sleeve (302e) is located outside the positioning plate (302d). The top rod (302f) is inserted into the support sleeve (302e). One end of the support column (302g) is fixed to the movable frame (201b), and the positioning plate (302d) is movably connected to the outside of the support column (302g).

3. The crack detection device for road and bridge maintenance as described in claim 2, characterized in that: The support assembly (200) further includes a fixing member (202) disposed on the support member (201), including a suction cup (202a), a fixing rod (202b), a button (202c), a connecting rod (202d), a movable plate (202e), and a pressing plate (202f). The suction cup (202a) is located on one side of the support frame (201a). The two ends of the fixing rod (202b) are fixed to the suction cup (202a) and the support frame (201a) respectively. The button (202c) is located on one side of the suction cup (202a). One end of the connecting rod (202d) is fixed to the button (202c). The movable plate (202e) is fixed to the other end of the connecting rod (202d). The pressing plate (202f) is fixed to the bottom of the movable plate (202e).

4. The crack detection device for road and bridge maintenance as described in claim 2 or 3, characterized in that: The support assembly (200) further includes a pusher (203) disposed at the bottom of the support assembly (201), including a fixed sleeve (203a), a first spring (203b), an extension rod (203c), a locking block (203d), and a pressing disc (203e). The fixed sleeve (203a) is fixed to the inner side of the rotating frame (301a), the first spring (203b) is fixed to the inner top wall of the fixed sleeve (203a), the extension rod (203c) is inserted into the fixed sleeve (203a) and fixed to the bottom end of the first spring (203b), the locking block (203d) is fixed to one side of the extension rod (203c), and the pressing disc (203e) is fixed to the outer side of the locking block (203d). A slot (203a-1) is provided on the fixed sleeve (203a), and the locking block (203d) slides in the slot (203a-1).

5. The crack detection device for road and bridge maintenance as described in claim 4, characterized in that: The support assembly (200) further includes a locking element (204) disposed within the movable frame (201b), comprising a limiting post (204a), a support plate (204b), a fixing block (204c), and a second spring (204d). The limiting post (204a) is located within the movable frame (201b), and a limiting groove (201a-2) is formed within the support frame (201a). The limiting post (204a) engages with the limiting groove (201a-2). The support plate (204b) is fixed within the movable frame (201b), and the limiting post (204a) is movably connected to the support plate (204b). The fixing block (204c) is fixed to one end of the support plate (204b), and both ends of the second spring (204d) are fixed to the fixing block (204c) and the support plate (204b), respectively.

6. The crack detection device for road and bridge maintenance as described in claim 5, characterized in that: The locking component (204) further includes a pressing rod (204e), a limiting block (204f), a push column (204g), and a force-bearing rod (204h). The pressing rod (204e) is inserted into the movable frame (201b), the limiting block (204f) is located inside the pressing rod (204e), the push column (204g) is inserted into the pressing rod (204e), the force-bearing rod (204h) is fixed to one side of the push column (204g), and a force-bearing groove (204f-1) is provided on the limiting block (204f).

7. The crack detection device for road and bridge maintenance as described in claim 5 or 6, characterized in that: A positioning block (302e-1) is fixed inside the support sleeve (302e). A third spring (302e-2) is fixed to the top of the positioning block (302e-1). The top of the third spring (302e-2) is fixed to the top rod (302f). A fourth spring (302e-3) is fixed to the bottom of the positioning block (302e-1). The bottom of the fourth spring (302e-3) is fixed to the positioning plate (302d). A first connecting block (302e-4) is fixed to one side of the support sleeve (302e). A guide block (302e-5) is fixed to one side of the mounting bracket (201c). The bottom of the guide block (302e-5) is inclined.

8. The crack detection device for road and bridge maintenance as described in claim 7, characterized in that: A second connecting block (302b-1) is fixed on one side of the movable sleeve (302b), and a guide rod (302b-2) is fixed on one side of the movable frame (201b). The top of the guide rod (302b-2) is inclined, and a limit strip (302b-3) is fixed on the top of the guide rod (302b-2).

9. The crack detection device for road and bridge maintenance as described in claim 8, characterized in that: The bottom of the movable frame (201b) is fixed with a positioning strip (301g), and the rotating frame (301a) is provided with a positioning groove (301a-1). The positioning strip (301g) slides in the positioning groove (301a-1).

10. The crack detection device for road and bridge maintenance as described in claim 8 or 9, characterized in that: It also includes a detection component (100) connected to the support component (200), including a detection head (101) and a detector (102), wherein the detection head (101) is fixed to the top of the mounting bracket (201c) by bolts, and the detector (102) is connected to the detection head (101).

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