Bridge engineering crack measuring device

Abstract

The invention provides a bridge engineering crack measuring device. The bridge engineering crack measuring device comprises a connecting assembly, an electric control assembly, a driving plate, an adsorption assembly, a first electric push rod, a connecting bent rod and an infrared detector, the electric control assembly is installed on the connecting assembly and externally connected with background control equipment, one ends of the pair of driving plates are adjustably connected to the two sides of the bottom of the connecting assembly respectively, the pair of adsorption assemblies are installed at the bottoms of the other ends of the pair of driving plates respectively, and the adsorption assemblies can be adsorbed to the contact face of a bridge. The first electric push rod is installed at the bottom of the connecting assembly and located between the pair of driving plates, and the telescopic end of the first electric push rod is connected with the infrared detector through the connecting bent rod so that the infrared detector can stretch into the bridge crack. The invention relates to the technical field of bridge detection, and can solve the problem that a bridge crack measuring device in the prior art is inconvenient to detect cracks at the bottom and side parts of a bridge.

Description

Technical Field

[0001] The invention relates to the technical field of bridge detection, and in particular to a bridge engineering crack measuring device. Background Art

[0002] With the development of my country's national strength, my country's bridge construction has been greatly improved compared with previous years. As there are more and more bridges in my country, we need to pay attention to the maintenance of bridges at all times, especially when cracks appear in the bridges, which will affect the overall stability of the bridges. Therefore, a bridge crack measurement device is needed for bridge engineering.

[0003] Chinese invention patent application CN113687373A discloses a bridge crack measuring device, which can adjust the telescopic rod to move up and down through a rotating mechanism, and then the infrared rangefinder can be moved into the crack through the telescopic rod to measure the depth of the crack. The movable mechanism can adjust the distance between the two infrared rangefinders to measure the width of the crack.

[0004] When using the bridge crack measuring device, the device needs to be set up directly above the crack to be measured, and then the infrared rangefinder is driven by the telescopic rod to move into the crack for measurement. Therefore, it is impossible to detect cracks at the bottom and sides of the bridge. Even if the device is inverted so that the telescopic rod moves upward, the measuring device is easy to fall, and because the travel of the telescopic rod is limited, the device cannot detect cracks at the bottom or side walls of higher bridges. Therefore, it is necessary to provide a bridge engineering crack measuring device that can solve the problem that the bridge crack measuring device in the prior art is not convenient for detecting cracks at the bottom and sides of the bridge. Summary of the invention

[0005] The object of the present invention is to provide a bridge engineering crack measuring device, which can solve the problem that the bridge crack measuring device in the prior art is not convenient for detecting cracks at the bottom and sides of the bridge.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] A bridge engineering crack measuring device comprises: a connecting component, an electric control component, a driving plate, an adsorption component, a first electric push rod, a connecting bent rod and an infrared detector; the electric control component is installed on the connecting component and is externally connected to a background control device, one end of a pair of driving plates are respectively adjustably connected to both sides of the bottom of the connecting component, a pair of adsorption components are respectively installed at the bottom of the other end of the pair of driving plates, and the adsorption components can be adsorbed on the contact surface of the bridge; the first electric push rod is installed at the bottom of the connecting component and is located between the pair of driving plates, and the telescopic end of the first electric push rod is connected to the infrared detector through the connecting bent rod, so that the infrared detector extends into the crack of the bridge.

[0008] The connecting component includes a connecting plate, a first spring and a damping member. The electronic control component is installed on the connecting plate. A pair of first springs are respectively connected between the two sides of the bottom of the connecting plate and one end of a pair of driving plates. The damping member is connected between the connecting plate and the driving plate, and a plurality of damping members are circumferentially distributed around the first spring.

[0009] The electric control assembly includes an electric control box, a protective plate, a PLC controller, a signal receiver and a battery; the electric control box is a hollow box structure with an opening on the top, the bottom of the electric control box is installed on the connecting plate, and the top of the electric control box can be opened and closed by the protective plate; the PLC controller, the signal receiver and the battery are all arranged in the electric control box, the signal receiver is integrated on the PLC controller and connected to the background control device externally, and the battery is electrically connected to the power port of the PLC controller.

[0010] A driving motor is installed on the top of the other end of each driving plate, and the PLC controller is electrically connected to the driving motor; the output shaft of the driving motor passes through the other end of the driving plate and is connected to the adsorption component through a rotating shaft, so that the adsorption component can be rotatably arranged under the other end of the driving plate and can be adsorbed on the contact surface of the bridge.

[0011] The adsorption assembly includes a mounting seat, a connecting rod, a suction cup, an annular tube and an air pump; the mounting seat is coaxially fixedly connected to the end of the rotating shaft away from the driving motor, one end of a plurality of connecting rods is connected to the mounting seat at intervals along the circumference of the mounting seat, and the other ends of the plurality of connecting rods extend in a radial direction away from the mounting seat; the annular tube is installed on the other ends of the plurality of connecting rods, and a plurality of suction cups are respectively arranged at the bottom of the other ends of the plurality of connecting rods, and the plurality of suction cups are adsorbed on the contact surface of the bridge through adsorption chambers; the air pump is arranged on one of the connecting rods and is electrically connected to the PLC controller, and the adsorption chambers of the plurality of suction cups are connected to the air pump through the annular tube.

[0012] The mounting seat is a hollow structure, the second electric push rod is installed in the mounting seat, and the telescopic end of the second electric push rod passes through the mounting seat downward and is connected to an electromagnet.

[0013] A plurality of limit plates are installed circumferentially on the mounting seat, the limit plates and the connecting rods are arranged alternately, and a coating assembly is respectively arranged at one end of the limit plates away from the mounting seat, and the coating assemblies and the suction cups are located on the same circumference.

[0014] Each group of the coating components includes a coating box, a cover plate, a second spring, a ball, a third spring, a push plate and a sliding seat. The sliding seat is installed on an outer wall of one side of the coating box, and the end of the limit plate away from the mounting seat is slidably arranged in the sliding seat through the third spring; the top and bottom of the coating box are open, the ball is rotatably embedded in the bottom of the coating box, and the cover plate is matched with the cover on the top of the coating box; the push plate is installed in the coating box below the cover plate through the second spring, and mucus is provided in the coating box between the push plate and the ball, so that the mucus leaks out from the ball groove reserved on the ball to the contact surface of the bridge under the squeezing of the push plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is provided with an adsorption component, which can be adsorbed on contact surfaces at different positions of the bridge, such as the top, bottom, and side surfaces. A pair of adsorption components have a large contact area on the contact surface, and provide a double adsorption force by using magnetic force and suction cup suction. The smearing component spreads mucus on the contact surface to ensure firm and stable adsorption, thereby facilitating detection of bridge cracks at different positions by an infrared detector driven by the first electric push rod and the connecting elbow. The invention has a wide range of applications and is not limited in application.

[0017] 2. Since the present invention is provided with an electric control component, a drive plate and an adsorption component, construction personnel can remotely drive the drive motor and the adsorption component on the drive plate through the electric control component, so that the drive component drives the adsorption component to rotate, thereby utilizing the alternating rotation of a pair of adsorption components relative to the contact surface to realize the movement of the entire bridge engineering crack measuring device on the contact surface, ensuring the precise alignment of the infrared detector and the crack, and during the movement, there is always a group of adsorption components that are reliably adsorbed on the contact surface without shifting or falling off, which is beneficial to improving the efficiency and safety of crack detection.

[0018] 3. Since the present invention is provided with a connecting component, it can utilize the elongation or compression deformation of the first spring and the damping member to form a certain angle between the driving plate and the connecting plate, so as to meet the application requirements on contact surfaces in arc shapes, etc., and ensure that the adsorption components on a pair of driving plates can be firmly adsorbed on the contact surfaces, thereby improving the stability during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0020] Figure 1 This is a front view of a bridge engineering crack measurement device according to the present invention;

[0021] Figure 2This is a rear view of a bridge engineering crack measurement device of the present invention;

[0022] Figure 3 It is a structural schematic diagram of an auxiliary adjustment component in a bridge engineering crack measurement device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of a connecting assembly and a driving plate in a bridge engineering crack measuring device of the present invention;

[0024] Figure 5 It is a structural schematic diagram of a driving plate and an adsorption component in a bridge engineering crack measurement device of the present invention;

[0025] Figure 6 This is a disassembled diagram of an adsorption component in a bridge engineering crack measurement device of the present invention;

[0026] Figure 7 A top view of an adsorption component in a bridge engineering crack measurement device of the present invention;

[0027] Figure 8 This is a schematic structural diagram of a mounting base and a connecting rod in a bridge engineering crack measurement device of the present invention;

[0028] Fig. 9 This is a disassembled diagram of a coating component in a bridge engineering crack measurement device of the present invention.

[0029] In the figure, 1. bridge engineering crack measuring device; 2. connecting component; 21. connecting plate; 22. first spring; 23. damping member; 24. first electric push rod; 25. connecting bent rod; 26. infrared detector; 3. electric control component; 31. electric control box; 32. protective plate; 33. PLC controller; 34. signal receiver; 35. battery; 4. driving plate; 41. driving motor; 42. rotating shaft; 5. adsorption component; 51. mounting seat; 52. connecting rod; 53. suction cup; 54. annular tube; 55. air pump; 56. limiting plate; 6. smearing component; 61. smearing box; 62. cover plate; 63. second spring; 64. ball; 641. ball groove; 65. third spring; 66. push plate; 67. sliding seat; 7. second electric push rod; 71. electromagnet. DETAILED DESCRIPTION

[0030] The following is a further detailed description of a bridge engineering crack measurement device proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] Please see attached Figure 1 and attached Figure 2 A bridge engineering crack measuring device 1 includes a connecting component 2, an electric control component 3, a driving plate 4, an adsorption component 5, a first electric push rod 24, a connecting bent rod 25 and an infrared detector 26; the electric control component 3 is installed on the connecting component 2 and is externally connected to a background control device, one end of a pair of driving plates 4 is respectively adjustably connected to both sides of the bottom of the connecting component 2, a pair of adsorption components 5 are respectively installed at the bottom of the other end of the pair of driving plates 4, and the adsorption component 5 can be adsorbed on the contact surface of the bridge; the first electric push rod 24 is installed at the bottom of the connecting component 2 and is located between the pair of driving plates 4, and the telescopic end of the first electric push rod 24 is connected to the infrared detector 26 through the connecting bent rod 25, so that the infrared detector 26 extends into the crack of the bridge.

[0032] The connecting component 2 is used to install the electronic control component 3 and connect a pair of driving plates 4. The pair of driving plates 4 are used to install and rotate and drive a pair of adsorption components 5, so that the adsorption components 5 are rotated and adsorbed on the contact surface of the bridge. The movement on the contact surface is achieved by alternating the rotation movement of the pair of adsorption components 5, so that the pair of adsorption components 5 are adsorbed on both sides of the crack to be detected, which is convenient for the infrared detector 26 to detect the crack. The infrared detector 26 can be adaptively selected according to the detection requirements.

[0033] The electronic control component 3 is used to connect the entire bridge engineering crack measuring device 1 with the background control equipment. Construction personnel can send control signals to the electronic control component 3 through the computer of the background control equipment to remotely control the movement and detection operations of the bridge engineering crack measuring device 1.

[0034] Preferably, the first electric push rod 24 can be a hydraulic electric push rod, which can push out and retract the connecting curved rod 25 and the infrared detector 26 by hydraulic changes after power is turned on, so as to facilitate the adjustment of the position of the infrared detector 26 so that it is arranged facing the crack and is convenient for detecting the crack. The connecting curved rod 25 can be an arc-shaped, S-shaped curved rod, etc., and its shape and size can be adaptively selected according to actual use requirements to improve the adaptability of the infrared detector 26 to cracks in different positions to ensure detection accuracy.

[0035] Please see attached Figure 2 and attached Figure 4 The connecting component 2 includes a connecting plate 21, a first spring 22 and a damping member 23. The electronic control component 3 is installed on the connecting plate 21. A pair of first springs 22 are respectively connected between the two sides of the bottom of the connecting plate 21 and one end of a pair of driving plates 4. The damping member 23 is connected between the connecting plate 21 and the driving plate 4, and a plurality of damping members 23 are circumferentially distributed around the first spring 22.

[0036] The first spring 22 and the damping member 23 can be compressed and stretched to produce deformation, so as to adapt to contact surfaces of different shapes such as arc surfaces, so that the driving plate 4 forms a certain angle with respect to the connecting plate 21, so that the plane where the driving plate 4 is located is basically parallel to the contact surface at the adsorption position, so as to ensure that a pair of adsorption components 5 can be firmly adsorbed on the contact surface.

[0037] Please see attached Figure 3 and attached Figure 4 The electric control component 3 includes an electric control box 31, a protective plate 32, a PLC controller 33, a signal receiver 34 and a battery 35; the electric control box 31 is a hollow box structure with an open top, the bottom of the electric control box 31 is installed on the connecting plate 21, and the top of the electric control box 31 can be opened and closed by the protective plate 32; the PLC controller 33, the signal receiver 34 and the battery 35 are all arranged in the electric control box 31, the signal receiver 34 is integrated on the PLC controller 33 and externally connected to the background control device, and the battery 35 is electrically connected to the power port of the PLC controller 33.

[0038] Preferably, the signal receiver 34 can adopt a communication chip based on 5G or wifi technology, so that construction personnel can remotely send control signals to the PLC controller 33 through the signal receiver 34. The PLC controller 33 can be used to control the operation of the entire bridge engineering crack measurement device 1.

[0039] The battery 35 is used to provide power for the PLC controller 33 to ensure the normal operation of the PLC controller 33. The protective plate 32 can be installed on the electric control box 31 by means of buckles, hinges, etc., and is easy to open and close, so that the PLC controller 33, the signal receiver 34 and the battery 35 can be easily maintained.

[0040] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 5 A driving motor 41 is installed on the top of the other end of each driving plate 4, and the PLC controller 33 is electrically connected to the driving motor 41; the output shaft of the driving motor 41 passes through the other end of the driving plate 4 and is connected to the adsorption component 5 through the rotating shaft 42, so that the adsorption component 5 can be rotatably arranged under the other end of the driving plate 4 and can be adsorbed on the contact surface of the bridge.

[0041] Preferably, the drive motor 41 can adopt a motor with bidirectional rotation function of the prior art, which is used to control the forward or reverse rotation of the rotating shaft 42, thereby controlling the rotation of the adsorption component 5 relative to the contact surface, or when one group of adsorption components 5 is adsorbed on the contact surface, it can control other structures except the adsorption component 5 to rotate relative to the adsorption component 5.

[0042] By utilizing the alternating rotation of the two groups of adsorption components 5 relative to the contact surface, the position of the entire bridge engineering crack measuring device 1 on the contact surface can be moved to adapt to the detection of cracks at different positions, and there is always a group of adsorption components 5 adsorbed on the contact surface to ensure that the entire bridge engineering crack measuring device 1 will not fall off, thereby being able to meet the needs of crack detection at the side, bottom and other positions of the bridge.

[0043] Please see attached Figure 6 To Attachment Figure 8 The adsorption assembly 5 includes a mounting seat 51, a connecting rod 52, a suction cup 53, an annular tube 54 and an air pump 55; the mounting seat 51 is coaxially fixedly connected to the end of the rotating shaft 42 away from the driving motor 41, one end of a plurality of connecting rods 52 is connected to the mounting seat 51 at intervals along the circumference of the mounting seat 51, and the other ends of the plurality of connecting rods 52 extend in a radial direction away from the mounting seat 51; the annular tube 54 is installed on the other ends of the plurality of connecting rods 52, and a plurality of suction cups 53 are respectively arranged at the bottom of the other ends of the plurality of connecting rods 52, and the plurality of suction cups 53 are adsorbed on the contact surface of the bridge through the adsorption chamber; the air pump 55 is arranged on one of the connecting rods 52 and is electrically connected to the PLC controller 33, and the adsorption chambers of the plurality of suction cups 53 are connected to the air pump 55 through the annular tube 54.

[0044] Preferably, three connecting rods 52 can be arranged at an equal interval of 120°, and correspondingly, three suction cups 53 are also arranged, so that the adsorption stability is high. The annular tube 54 is in a circular ring shape and is arranged at the ends of the three connecting rods 52. The annular tube 54 is connected to the adsorption chambers of the three suction cups 53 through three branch pipes that penetrate the connecting rods 52, and is connected to the air pump 55 through the branch pipe. The adsorption chambers of the three suction cups 53 are connected through the annular tube 54, so that the adsorption forces of the three suction cups 53 are the same, and the adsorption effect of the adsorption assembly 5 is guaranteed to avoid falling off.

[0045] Preferably, the air pump 55 can adopt an air pump with vacuuming and inflation functions in the prior art, so as to realize the vacuuming or inflation function of the adsorption chamber of the three suction cups 53; when the adsorption chamber is vacuumed, it can ensure that the suction cup 53 is firmly adsorbed on the contact surface, and when the adsorption chamber is inflated, the suction cup 53 can be detached from the contact surface.

[0046] Please see attached Figure 6 and attached Figure 8 The mounting seat 51 is a hollow structure, the second electric push rod 7 is installed in the mounting seat 51, and the telescopic end of the second electric push rod 7 passes through the mounting seat 51 downward and is connected to the electromagnet 71.

[0047] Preferably, the second electric push rod 7 can be a hydraulic electric push rod, which can push out and retract the electromagnet 71 by hydraulic changes after power is turned on, and the electromagnet 71 is close to the contact surface when pushed out. At present, steel structures are widely used in bridges and buildings. The electromagnet 71 can generate magnetic force after power is turned on, so that it can be adsorbed on the steel component of the contact surface, thereby improving the adsorption firmness of the entire bridge engineering crack measurement device 1. The electromagnet 71 can be separated from the contact surface when it is retracted, so as to facilitate the rotation and movement of the adsorption component 5.

[0048] Please see attached Figure 5 , Attachment Figure 6 , Attachment Figure 8 and attached Fig. 9 A plurality of limit plates 56 are installed on the mounting seat 51 along the circumferential direction. The limit plates 56 and the connecting rods 52 are arranged alternately. A coating component 6 is respectively provided at one end of the limit plates 56 away from the mounting seat 51. The coating components 6 and the suction cups 53 are located on the same circumference.

[0049] The smearing component 6 is used to smear soapy water, egg white liquid or other mucus on the contact surface. Since the smearing component 6 and the suction cup 53 are located on the same circumference, when the two rotate synchronously, the mucus can be applied to the position where the suction cup 53 is adsorbed, and is used to fill the tiny gap between the suction cup 53 and the contact surface to improve the adsorption effect of the suction cup 53.

[0050] Please see attached Figure 5 , Attachment Figure 6 , Attachment Figure 8 and attached Fig. 9 Each group of the coating components 6 includes a coating box 61, a cover plate 62, a second spring 63, a ball 64, a third spring 65, a push plate 66 and a sliding seat 67. The sliding seat 67 is installed on the outer wall of one side of the coating box 61, and the end of the limit plate 56 away from the mounting seat 51 is slidably arranged in the sliding seat 67 through the third spring 65; the top and bottom of the coating box 61 are open, the ball 64 is rotatably embedded in the bottom of the coating box 61, and the cover plate 62 is matched with the cover on the top of the coating box 61; the push plate 66 is installed in the coating box 61 below the cover plate 62 through the second spring 63, and the coating box 61 between the push plate 66 and the ball 64 is provided with mucus, so that the mucus leaks out from the ball groove 641 reserved on the ball 64 to the contact surface of the bridge under the extrusion of the push plate 66.

[0051] Preferably, the end of the limit plate 56 away from the mounting seat 51 can be set in a T-shaped structure, a sliding groove of the T-shaped structure is formed in the sliding seat 67, and the sliding seat 67 is open at one end facing the limit plate 56, so that the limit plate 56 can slide stably in the sliding seat 67 without falling out. When the ball 64 rolls in contact with the contact surface, the third spring 65 can be in a slightly compressed state, so that the elastic force generated by the third spring 65 is used to react on the smear box 61, so that the ball 64 always maintains a certain pressure rolling contact with the contact surface to ensure the effective application of the mucus. If there are obstacles such as small bumps on the contact surface, the deformation of the third spring 65 and the relative sliding of the limit plate 56 and the sliding seat 67 can ensure that the ball 64 can stably cross the obstacle.

[0052] The cover plate 62 can be mounted on the smear box 61 by means of buckles, hinges, etc., so as to facilitate the injection of mucus into the smear box 61. At the same time, the second spring 63 can provide a certain pressure to the push plate 66, so that the push plate 66 squeezes the mucus out of the ball groove 641. The number, spacing, and size of the ball grooves 641 can be adaptively adjusted according to actual use requirements to ensure effective extrusion and application of the mucus and to meet the firm adsorption of the suction cup 53.

[0053] The ball 64 is rotatably embedded in the bottom of the smear box 61 through the ball seat. When the adsorption component 5 rotates relative to the contact surface, the friction between the ball 64 and the contact surface is used to make the ball 64 roll on the contact surface, so that the extruded mucus is smeared onto the contact surface by the ball groove 641, which facilitates the subsequent firm adsorption of the suction cup 53.

[0054] Please see attached Figure 1 To Attachment Fig. 9 , the working process and working principle of the present invention are:

[0055] Step 1: Construction personnel place the bridge engineering crack measuring device 1 on the bridge contact surface where cracks need to be detected, which can be the top, bottom, side and other contact surfaces of the bridge component. One of the adsorption components 5 is adsorbed and fixed to the contact surface. When the bottom of the adsorption component 5 contacts the contact surface, the second electric push rod 7 is controlled to drive the electromagnet 71 to extend so that it contacts the contact surface, and the electromagnet 71 is energized to generate magnetism and adsorb on the steel material on the contact surface.

[0056] Construction personnel can remotely control the PLC controller 33 through a computer or other background control equipment via a remote signal receiver 34 to control the vacuum and inflation of the air pump 55 of the adsorption component 5, the opening, closing and steering of the drive motor 41, the extension and retraction of the second electric push rod 7, the extension and retraction of the first electric push rod 24, and the detection operation of the infrared detector 26.

[0057] Step 2: Control the second electric push rod 7 to drive the electromagnet 71 to retract upward slightly. At this time, the plurality of suction cups 53 are attached to the contact surface, and the air pump 55 is started to evacuate air. The gas in the adsorption chamber of the plurality of suction cups 53 is evacuated through the annular tube 54, and the adsorption chamber is in a vacuum state, so that the plurality of suction cups 53 are firmly adsorbed on the contact surface. The electromagnet 71 and the plurality of suction cups 53 provide a firm and reliable double adsorption force, and the entire bridge engineering crack measurement device 1 is adsorbed on the bridge contact surface.

[0058] Step 3: Start the driving motor 41 on another adsorption component 5. The driving motor 41 drives the adsorption component 5 to rotate as a whole through the rotating shaft 42, and the smearing component 6 rotates synchronously. During the rotation of the smearing component 6, the ball 64 rolls on the contact surface, causing the mucus to leak out of the ball groove 641 and be smeared on the contact surface. Then, another adsorption component 5 is adsorbed to the contact surface through the electromagnet 71 and a plurality of suction cups 53. The adsorption process of the electromagnet 71 and a plurality of suction cups 53 is the same as the adsorption process of the adsorption component 5 in the second step above, and will not be repeated here. The difference is that the mucus is smeared between the suction cup 53 of the other adsorption component 5 and the contact surface through the ball 64, which can improve the adsorption firmness between the suction cup 53 and the contact surface.

[0059] Step 4: Control the air pump 55 of the first adsorption component 5 to inflate air into the adsorption chamber of the suction cup 53, so that the suction cup 53 is separated from the contact surface, and control the electromagnet 71 of the first adsorption component 5 to retract and separate from the contact surface. Control the drive motor 41 of the other adsorption component 5 to rotate, so that the drive motor 41 drives the drive plate 4, the electric control component 3, the connecting component 2, the first adsorption component 5 and its drive plate 4 corresponding to the other adsorption component 5 to rotate relative to the other adsorption component 5, so that the first adsorption component 5 moves a certain distance in a certain direction on the contact surface.

[0060] Step 5: After the first adsorption component 5 is moved into position, it is adsorbed onto the contact surface. The adsorption method of the first adsorption component 5 is the same as the adsorption method of the other adsorption component 5 onto the contact surface in the third step above, and will not be repeated here.

[0061] Step 6: Repeat steps 3 to 5 until a pair of adsorption components 5 are moved to be adsorbed on both sides of the crack to be detected.

[0062] Step 7: Start the first electric push rod 24 and push the infrared detector 26 to the crack, and then use the infrared detector 26 to measure the crack.

[0063] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A bridge engineering crack measurement device, characterized in that: include: A connecting component (2), an electric control component (3), a driving plate (4), an adsorption component (5), a first electric push rod (24), a connecting bent rod (25) and an infrared detector (26); the electric control component (3) is mounted on the connecting component (2) and is externally connected to a background control device; one end of a pair of driving plates (4) is respectively adjustable and connected to both sides of the bottom of the connecting component (2); a pair of adsorption components (5) are respectively mounted on the bottom of the other ends of the pair of driving plates (4); and the adsorption components (5) can be adsorbed on the contact surface of the bridge; the first electric push rod (24) is mounted on the bottom of the connecting component (2) and is located between the pair of driving plates (4); the telescopic end of the first electric push rod (24) is connected to the infrared detector (26) through the connecting bent rod (25), so that the infrared detector (26) extends into the crack of the bridge.

2. The bridge engineering crack measuring device according to claim 1, characterized in that: The connecting component (2) comprises a connecting plate (21), a first spring (22) and a damping member (23); the electric control component (3) is mounted on the connecting plate (21); a pair of first springs (22) are respectively connected between two sides of the bottom of the connecting plate (21) and one end of a pair of driving plates (4); the damping member (23) is connected between the connecting plate (21) and the driving plate (4); and a plurality of damping members (23) are circumferentially distributed around the first spring (22).

3. The bridge engineering crack measuring device according to claim 2, characterized in that: The electric control assembly (3) comprises an electric control box (31), a protective plate (32), a PLC controller (33), a signal receiver (34) and a battery (35); the electric control box (31) is a hollow box structure with an open top, the bottom of the electric control box (31) is mounted on the connecting plate (21), and the top of the electric control box (31) can be opened and closed by the protective plate (32); the PLC controller (33), the signal receiver (34) and the battery (35) are all arranged in the electric control box (31), the signal receiver (34) is integrated on the PLC controller (33) and externally connected to a background control device, and the battery (35) is electrically connected to a power port of the PLC controller (33).

4. The bridge engineering crack measuring device according to claim 3, characterized in that: A driving motor (41) is installed on the top of the other end of each driving plate (4), and the PLC controller (33) is electrically connected to the driving motor (41); the output shaft of the driving motor (41) passes through the other end of the driving plate (4) and is connected to the adsorption component (5) through a rotating shaft (42), so that the adsorption component (5) can be rotatably arranged below the other end of the driving plate (4) and can be adsorbed on the contact surface of the bridge.

5. The bridge engineering crack measuring device according to claim 4, characterized in that: The adsorption assembly (5) comprises a mounting seat (51), a connecting rod (52), a suction cup (53), an annular tube (54) and an air pump (55); the mounting seat (51) is coaxially fixedly connected to one end of the rotating shaft (42) away from the driving motor (41); one end of a plurality of connecting rods (52) is connected to the mounting seat (51) at intervals along the circumference of the mounting seat (51); the other ends of the plurality of connecting rods (52) extend in a radial direction away from the mounting seat (51); the annular tube (54) is mounted on the other ends of the plurality of connecting rods (52); the plurality of suction cups (53) are respectively arranged at the bottom of the other ends of the plurality of connecting rods (52); the plurality of suction cups (53) are adsorbed on the contact surface of the bridge through adsorption chambers; the air pump (55) is arranged on one of the connecting rods (52) and is electrically connected to the PLC controller (33); and the adsorption chambers of the plurality of suction cups (53) are connected to the air pump (55) through the annular tube (54).

6. The bridge engineering crack measuring device according to claim 5, characterized in that: The mounting seat (51) is a hollow structure, the second electric push rod (7) is mounted in the mounting seat (51), and the telescopic end of the second electric push rod (7) passes through the mounting seat (51) downward and is connected to an electromagnet (71).

7. The bridge engineering crack measuring device according to claim 5 or 6, characterized in that: A plurality of limit plates (56) are installed on the mounting seat (51) along the circumferential direction. The limit plates (56) and the connecting rods (52) are arranged alternately. The ends of the limit plates (56) away from the mounting seat (51) are respectively provided with smearing assemblies (6). The smearing assemblies (6) and the suction cups (53) are located on the same circumference.

8. The bridge engineering crack measuring device according to claim 7, characterized in that: Each group of the coating components (6) comprises a coating box (61), a cover plate (62), a second spring (63), a ball bearing (64), a third spring (65), a push plate (66) and a sliding seat (67). The sliding seat (67) is mounted on an outer wall of one side of the coating box (61). The end of the limit plate (56) away from the mounting seat (51) is slidably arranged in the sliding seat (67) through the third spring (65). The coating box (61) is opened at the top and bottom. The ball bearing (64) is opened at the top and bottom. (64) is rotatably embedded in the bottom of the coating box (61), and the cover plate (62) is matched to cover the top of the coating box (61); the push plate (66) is installed in the coating box (61) below the cover plate (62) through the second spring (63), and the coating box (61) between the push plate (66) and the ball (64) is provided with mucus, so that the mucus leaks out from the ball groove (641) reserved on the ball (64) to the contact surface of the bridge under the squeezing of the push plate (66).

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