A concrete crack detection device

Abstract

The application relates to the field of concrete detection, and discloses a concrete crack detection device, which has the technical scheme as follows: the device comprises a vehicle body and at least one first detection mechanism arranged on the vehicle body; the first detection mechanism comprises a lifting piece, a transmission assembly and a bidirectional force sensor; the lifting piece is slidably connected with the vehicle body in the vertical direction; the lifting piece transmits a pulling force to the bidirectional force sensor through the transmission assembly; the bidirectional force sensor is used for detecting the size of the pulling force or the pushing force transmitted thereto, thereby forming the measurement of the degree of the bulge or the depression, and the detection of the degree of the bulge or the depression around the crack is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concrete detection, in particular to a concrete crack detection device. BACKGROUND

[0002] The concrete refers to the engineering composite material which is formed by the cementing material, the aggregate is cemented into a whole, the cement is used as the cementing material, the sand and the stone are used as the aggregate, the water (may contain the admixture and the additive) is mixed with the water, the cement concrete is obtained by stirring;

[0003] The concrete structure will produce cracks under the influence of internal and external factors, and the cracks will reduce the carrying capacity, durability and waterproofness of the concrete.

[0004] The periphery of the crack is often accompanied by the uplift or the depression of the concrete, but when the concrete crack is detected, it is difficult to detect the uplift or the depression degree of the periphery of the crack. SUMMARY

[0005] In order to facilitate the detection of the uplift or the depression degree of the periphery of the crack, the present application provides a concrete crack detection device.

[0006] The present application provides a concrete crack detection device, which adopts the following technical scheme:

[0007] A concrete crack detection device, comprising a vehicle body and at least one first detection mechanism arranged on the vehicle body, the first detection mechanism comprising a lifting piece, a transmission assembly and a bidirectional force sensor, the lifting piece being slidably connected with the vehicle body in the vertical direction, the lifting piece transmitting the tension or the pressure to the bidirectional force sensor through the transmission assembly, the vehicle body being provided with a display host, and the bidirectional force sensor being electrically connected with the display host.

[0008] By adopting the above technical scheme, the vehicle body is used for moving and carrying the first detection mechanism, the number of the first detection mechanism is not limited, based on the existence of two sides of the crack, the uplift or the depression of the two sides of the crack may exist, and the degree of the uplift or the depression is different, two first detection mechanisms can be arranged, when the lifting piece passes through the position of the uplift or the depression, the lifting piece will rise or fall due to the different degrees of the uplift or the depression, the degree of the rising or the falling of the lifting piece forms the tension or the pressure of the bidirectional force sensor through the transmission assembly, the bidirectional force sensor is used for detecting the size of the tension or the pressure transmitted thereto, and the size of the tension or the pressure is transmitted to the display host, the calculation of the display host forms the measurement or the image of the degree of the uplift or the depression, so that the detection of the degree of the uplift or the depression of the periphery of the crack is realized.

[0009] Optionally, the transmission assembly comprises a sliding part, a connecting rod and a steering part, the steering part is connected with the sliding part through the connecting rod, the lifting piece is connected with the steering part, and the lifting piece moves the connecting rod along the sliding direction of the sliding part through the steering part.

[0010] By adopting the technical scheme, the sliding part limits the sliding direction of the connecting rod and increases the stability of the sliding of the connecting rod. During the lifting or lowering of the lifting piece, the lifting piece changes the force transmission direction through the steering part and the sliding part, and the upward or downward force of the lifting piece is transmitted to the lateral movement force of the connecting rod, so that the lateral pulling force or pushing force is transmitted to the bidirectional force sensor.

[0011] Optionally, the sliding part comprises a first sliding rail, the first sliding rail is in sliding connection with the connecting rod, and an elastic piece is arranged between the connecting rod and the vehicle body, and the elastic piece is connected with the bidirectional force sensor.

[0012] By adopting the technical scheme, the first sliding rail is arranged, so that the friction loss between the connecting rod and the first sliding rail is reduced, and the detection data is more accurate.

[0013] The elastic piece has deformation ability and recovery ability. When the connecting rod moves along the arrangement direction of the first sliding rail, that is, moves along the length direction of the first sliding rail, the pulling force or pushing force of the connecting rod on the elastic piece can cause the deformation of the elastic piece, so that the connecting rod has a certain displacement space, and the situation that the lifting piece is stuck with the steering part during the lifting or lowering of the lifting piece is prevented.

[0014] The connecting rod transmits the force to the bidirectional force sensor through the elastic piece, so that the bidirectional force sensor detects the pulling force or pushing force, and the detection of the protrusion or depression degree is realized.

[0015] Optionally, the steering part comprises a connecting plate and a spherical universal joint connected with the connecting plate, the spherical universal joint is fixedly connected with the vehicle body, a support rod is hinged between the connecting plate and the connecting rod, and the lifting piece is in sliding and hinged connection with the connecting plate.

[0016] By adopting the technical scheme, when the lifting piece is lifted, one end of the connecting plate is pushed upward. By arranging the spherical universal joint, the connecting plate is facilitated to rotate, so that the pushed end of the connecting plate is formed to be raised, and the connecting plate does not disengage from the spherical universal joint. The connecting plate and the connecting rod are in force transmission through the support rod. In the case that the connecting plate is pushed upward or pulled downward by the lifting piece, the connecting rod is driven to move through the support rod. As can be seen, the required force for moving the connecting rod is obtained from the support rod.

[0017] The force direction formed by the connecting rod is different in two cases of the lifting member rising and falling, when the lifting member rises, that is, the lifting member encounters the crack peripheral bulge, the lifting member drives the connecting plate to rise away from one end of the spherical universal joint, so that the support rod drives the connecting rod to move away from one end of the bidirectional force sensor; when the lifting member falls, that is, the lifting member encounters the crack peripheral depression, the lifting member drives the connecting plate to move downward away from one end of the spherical universal joint, so that the support rod drives the connecting rod to move close to one end of the bidirectional force sensor.

[0018] The sliding and hinging between the lifting member and the connecting plate can prevent the lifting member from being stuck with the connecting plate during the lifting member rising or falling.

[0019] Optionally, the second detection mechanism further comprises a detection table, a camera microscopic probe, and a moving assembly arranged on the detection table, a detection instrument host is arranged on the vehicle body, the camera microscopic probe is electrically connected with the detection instrument host, and the moving assembly is used to drive the camera microscopic probe to move in a preset direction.

[0020] By adopting the above technical scheme, the detection table forms support for the moving assembly as a mounting base of the moving assembly, and the moving assembly drives the camera microscopic probe to move, so that the camera microscopic probe can detect the crack extending from the current position to the blocking object when the crack extends to the blocking object if the vehicle body stops moving, for example, when the vehicle body encounters a wall or other blocking object, which expands the detection range and reduces the detection dead angle.

[0021] The camera microscopic probe is electrically connected with the detection instrument host, so that the data obtained by the camera microscopic probe can be transmitted to the detection instrument host in real time, so that the user can obtain the detection data in real time and observe in real time.

[0022] The vehicle body forms a mounting base for the detection instrument host, and the detection instrument host is arranged above the vehicle body, which is convenient for the user to observe and record data.

[0023] Optionally, the second detection mechanism further comprises a camera, which is fixedly connected with the moving assembly and electrically connected with the display host.

[0024] By adopting the above technical scheme, the camera is used to collect images of the crack in real time, and the display host forms a track route of the crack, so that the direction of the vehicle body movement is controlled through the track route, so that the camera microscopic probe can always be located above the crack track route, reducing the deviation of the camera microscopic probe from the crack, so that the camera microscopic probe can always obtain the width data of the crack, and the accuracy of the crack width data is increased.

[0025] In the process that the mobile assembly drives the camera micro-probe to move, the camera can also move, so that the camera can also shoot the crack extending from the current position to the blocking object, so that the shooting of the crack is more complete, and the formed crack image can also be improved.

[0026] Optionally, the mobile assembly comprises a moving piece and a motor, the motor is fixedly connected to the detection table, the output end of the motor is fixedly connected with a screw rod, the screw rod is rotationally connected with the detection table, the moving piece is slidingly connected with the detection table and is threadedly connected with the screw rod.

[0027] By adopting the above technical scheme, the detection table forms a mounting base for the motor, the motor drives the moving piece to move through the screw rod, so that the moving speed of the moving piece is more controllable, and the imaging and detection of the crack by the camera and the camera micro-probe are facilitated.

[0028] Moreover, the moving piece is slidingly connected with the detection table, the sliding connection limits the moving direction of the moving piece, so that the moving piece moves along the length direction of the screw rod.

[0029] Optionally, the second detection mechanism further comprises an anti-collision assembly, the anti-collision assembly comprises an anti-collision plate and a resilient piece connected with the anti-collision plate, the detection table is formed with a groove, the resilient piece is embedded in the groove, and the camera micro-probe deforms when abutting against the anti-collision plate.

[0030] By adopting the above technical scheme, in the case that the camera and the camera micro-probe move, they move towards the side of the blocking object, the anti-collision assembly is used to prevent the camera or the camera micro-probe from colliding with the blocking object, so as to prevent the damage of the camera or the camera micro-probe.

[0031] The positional relationship between the camera and the camera micro-probe is not limited.

[0032] The anti-collision plate is located between the blocking object and the camera or the camera micro-probe, and forms a certain anti-collision buffer force.

[0033] The groove forms a mounting base for the resilient piece, facilitating the installation of the resilient piece.

[0034] Optionally, the anti-collision plate comprises a plurality of fixing pieces and an anti-collision body, the fixing pieces are embedded in the anti-collision body and connected with the resilient piece.

[0035] By adopting the technical scheme, the hardness of the fixed part at the position of the anti-collision body is increased, so that the anti-collision body at the position of the fixed part is not easy to deform, and the fixed part is connected with the rebound body, so that when the camera or the camera microscopic probe abuts against the anti-collision body, the anti-collision body can be moved, and the rebound part can be moved and deformed at the same time through the anti-collision body, so that the anti-collision body is prevented from deforming and failing in the case that the rebound part does not deform.

[0036] Optionally, the rebound part comprises two rebound pieces arranged oppositely, the rebound piece comprises an outward expansion section and a smooth section integrally formed with the outward expansion section, and the ends of the two outward expansion sections away from the smooth section outward expand in directions away from each other.

[0037] By adopting the technical scheme, the two rebound pieces are connected with the anti-collision plate, in the process of moving of the anti-collision plate, the outward expansion section and the smooth section will all deform, the deformation degree of the outward expansion section is greater than that of the smooth section, when the two outward expansion sections move close to each other, that is, the anti-collision plate moves to the side of the barrier, when the two outward expansion sections move away from each other, that is, the anti-collision plate moves to the side away from the barrier, so that the rebound piece realizes the function of automatic reset.

[0038] In summary, the present application has at least one of the following beneficial technical effects:

[0039] 1. The size of the pulling force or the pushing force transmitted to the bidirectional force sensor is detected by the bidirectional force sensor, the degree of the protrusion or the depression is calculated, and the detection of the degree of the protrusion or the depression around the crack is realized;

[0040] 2. The elastic piece is arranged to provide a displacement space for the connecting rod, and the connecting rod transmits the force to the bidirectional force sensor through the elastic piece, so that the bidirectional force sensor detects the pulling force or the pushing force;

[0041] 3. The moving assembly can drive the camera microscopic probe to move, the camera microscopic probe can detect the crack extending from the current position to the barrier, the detection range is expanded, and the dead angle of detection is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a perspective view in the embodiment of the present application.

[0043] Figure 2 is a sectional view in the embodiment of the present application.

[0044] Figure 3 is Figure 2 is an enlarged view of A part in FIG.

[0045] Figure 4 is a bottom view in the embodiment of the present application.

[0046] Figure 5 is Figure 4 is an enlarged view of part B in FIG. 1.

[0047] Figure 6 is Figure 1 is an enlarged view of part C in FIG. 1.

[0048] Figure 7 is a sectional view of the anti-collision plate in the present application.

[0049] Figure 8 is a deformation state diagram of the rebounding member in the present application.

[0050] BRIEF DESCRIPTION OF DRAWINGS

[0051] 1. vehicle body;

[0052] 11. display host; 12. probe instrument host;

[0053] 2. lifting member; 3. transmission assembly; 4. bidirectional force sensor;

[0054] 21. sliding part; 22. connecting rod; 23. turning part; 24. elastic member

[0055] 211. first sliding rail; 212. first sliding block;

[0056] 231. connecting plate; 232. spherical universal joint; 233. supporting rod;

[0057] 5. second detection mechanism;

[0058] 51. detection table; 52. camera microscopic probe; 53. moving assembly; 54. camera; 55. cover plate;

[0059] 511. groove;

[0060] 531. moving member; 532. motor; 533. screw rod;

[0061] 6. anti-collision assembly;

[0062] 61. anti-collision plate; 62. rebounding member;

[0063] 611. fixing member; 612. anti-collision body;

[0064] 621. outwardly expanding section; 622. smooth section;

[0065] 7. shaped member;

[0066] 71. straight rod; 72. inclined rod. DETAILED DESCRIPTION

[0067] The present application will be described in greater detail below with reference to the accompanying drawings. Figures 1-8The application is further described in detail by referring to the embodiments. Identical parts are denoted by identical reference numerals. It is to be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of the particular part.

[0068] The embodiments of the application disclose a concrete crack detection device, which can detect the degree of the bulge or depression on the periphery of the crack, i.e. on both sides of the crack.

[0069] With reference to Figure 1 and Figure 2 , the concrete crack detection device comprises a vehicle body 1 capable of automatic driving, and the vehicle body 1 can also be controlled to move by remote control. The remote control can be wired control or wireless control, and the wireless control can more liberate the moving distance of the vehicle body 1.

[0070] The vehicle body 1 is provided with at least one first detection mechanism, and the vehicle body 1 comprises a mounting table, and the first detection mechanism is installed below the mounting table.

[0071] The first detection mechanism comprises a lifting piece 2, a transmission assembly 3 and a bidirectional force sensor 4. The lifting piece 2 comprises a vertical rod and a universal wheel rotatably connected to the bottom of the vertical rod. The universal wheel can more conveniently change the moving direction. The universal wheel is always in contact with the ground through the transmission assembly 3. The vertical rod is lifted and lowered through the bulge or depression on the periphery of the crack, so as to realize the lifting and lowering of the lifting piece 2.

[0072] A support is connected to the vehicle body 1. The connection mode can be fixed connection through standard parts such as bolts or can be welding. The lifting piece 2 is slidably connected to the vehicle body 1 in the vertical direction. The support comprises a horizontal rod and a column integrally formed with the horizontal rod. A through hole is formed in the column. The vertical rod is arranged through the through hole. The column limits the moving direction of the vertical rod and increases the stability of the lifting and lowering of the vertical rod.

[0073] The bidirectional force sensor 4 is used to detect the tension and pressure received thereby. The lifting piece 2 transmits the tension or pressure to the bidirectional force sensor 4 through the transmission assembly 3.

[0074] With reference to Figure 1 , the transmission assembly 3 comprises a sliding part 21, a turning part 23 and a connecting rod 22 slidably connected to the mounting table. The connecting rod 22 is transversely and slidably arranged between the mounting table and the turning part 23. The turning part 23 is connected to the sliding part 21 through the connecting rod 22. The sliding part 21 comprises a first sliding rail 211 and a first sliding block 212 slidably connected to the first sliding rail 211. The first sliding block 212 is hingedly connected to one end of the connecting rod 22, so as to realize the sliding connection of the first sliding rail 211 and the connecting rod 22.

[0075] Referring to FIGS. 2 and Figure 3 A resilient member 24 is arranged between the connecting rod 22 and the vehicle body 1, and the resilient member 24 can be a spring. The tensile capacity of the resilient member 24 needs to be selected, and the resilient member 24 can be stretched when the lifting member 2 is lowered.

[0076] The spring is specifically a spring that can be stretched and compressed, so that the spring can be deformed in the case of being pulled or compressed during the lateral movement of the connecting rod 22, and force is transmitted to the bidirectional force sensor 4.

[0077] In order to limit the deformation direction of the resilient member 24, a sleeve is arranged between the vehicle body 1 and the connecting rod 22, a notch is formed in the sleeve, the resilient member 24 is arranged in the notch, and the bidirectional force sensor 4 is also arranged at the bottom of the notch. A wire hole is formed on the sleeve, wiring can be performed through the wire hole, and the end of the connecting rod 22 close to the sleeve extends into the notch, thereby supporting the connecting rod 22.

[0078] The resilient member 24 can also be a metal member, which includes two metal sheets integrally formed at an angle to achieve compression and stretching deformation. One of the metal sheets is fixedly connected to the connecting rod 22, and the other metal sheet is fixedly connected to the bidirectional force sensor 4. The metal sheet can be extended to form a flat section, and a mounting hole can be formed on the flat section and connected to the connecting rod 22 by a bolt or directly welded.

[0079] The lifting member 2 is connected to the steering portion 23, and the lifting member 2 moves the connecting rod 22 along the sliding direction of the sliding portion 21 through the steering portion 23. Specifically, the connecting rod 22 moves towards or away from the bidirectional force sensor 4. When the connecting rod 22 moves away from the bidirectional force sensor 4, the bidirectional force sensor 4 is subjected to a pulling force. When the connecting rod 22 moves towards the bidirectional force sensor 4, the bidirectional force sensor 4 is subjected to a pressure. The size of the pressure or the pulling force received by the bidirectional force sensor 4 is converted into a specific numerical value, and the corresponding data of the degree of protrusion or depression is indexed according to the numerical value table.

[0080] The data table records the pressure data, the pulling force data, the degree of protrusion data, and the degree of depression data. The pressure data corresponds to the degree of protrusion data, and the pulling force data corresponds to the degree of depression data. The pressure data or the pulling force data obtained by the bidirectional force sensor 4 is used to index the corresponding degree of protrusion data or the degree of depression data, and a curved surface image can be generated, so that the ground condition around the gap can be observed more intuitively.

[0081] Referring to FIGS. 2 and Figure 1 and Figure 2As shown, the turning part 23 comprises a connecting plate 231 and a spherical universal joint 232 connected with the connecting plate 231, and the spherical universal joint 232 is arranged to facilitate the rotation of the connecting plate 231.

[0082] The bottom of the mounting table is fixedly connected with a frame body, the spherical universal joint 232 can be fixedly connected with the vehicle body 1, that is, can be fixedly connected with the mounting table or can be fixedly connected with the frame body, in order to facilitate the installation of the spherical universal joint 232, the frame body extends a horizontal section, so that the spherical universal joint 232 can be installed vertically, that is, in the vertical direction.

[0083] The connecting plate 231 and the connecting rod 22 are hingedly connected with a support rod 233, and the lifting piece 2 is slidingly and hingedly connected with the connecting plate 231, in this embodiment, the distance from the end of the support rod 233 connected with the connecting rod 22 to the spherical universal joint 232 is greater than the distance from the end of the support rod 233 connected with the connecting plate 231 to the spherical universal joint 232.

[0084] In the arrangement of the support rod 233, the distance from the end of the support rod 233 connected with the connecting rod 22 to the spherical universal joint 232 can be less than the distance from the end of the support rod 233 connected with the connecting plate 231 to the spherical universal joint 232, compared with the arrangement of the support rod 233 in this embodiment, in the case that the movement direction of the lifting piece 2 is the same, the moving direction of the connecting rod 22 is opposite.

[0085] The connecting plate 231 comprises a horizontal plate and an inclined plate, the inclined plate is arranged obliquely, and the horizontal plate is arranged horizontally, and the inclined plate is inclined downward away from the horizontal plate.

[0086] The rotating end of the spherical universal joint 232 is fixedly connected with the horizontal plate, and the inclined plate and the horizontal plate are integrally formed, or the inclined plate and the horizontal plate can be fixedly connected by standard parts such as bolts, an installation section is arranged at the end of the inclined plate close to the horizontal plate, threaded holes are formed in the installation section and the corresponding horizontal plate, and the installation section and the spherical universal joint 232 are fixed by bolts.

[0087] The installation section and the spherical universal joint 232 are away from each other, that is, the installation section and the spherical universal joint 232 are respectively located at the two ends of the horizontal plate.

[0088] A second sliding rail is fixedly connected to the inclined plate, a second sliding block is slidingly connected to the second sliding rail, and the vertical rod at the top of the lifting piece 2 is hingedly connected with the second sliding block, so as to realize the sliding and hinging of the lifting piece 2 and the inclined plate, in the lifting process of the lifting piece 2, the inclined plate is pushed to move upward, and the second sliding block slides on the second sliding rail to change the position relationship of the second sliding block relative to the inclined plate, in the lowering process of the lifting piece 2, the inclined plate is driven to move downward.

[0089] The inclined plate is arranged obliquely, which can shorten the length of the vertical rod on the lifting piece 2 to some extent, thereby reducing the length of the horizontal plate in design, so that more space is left for lifting, and the range of upward rotation of the horizontal plate is expanded.

[0090] Referring to Figure 1 In the embodiment, the number of the first detection mechanisms is four, wherein the vehicle body 1 comprises four supporting legs connected with the mounting table, and universal wheels are connected at the bottom of the four supporting legs.

[0091] The four first detection mechanisms are arranged in two groups, and the two groups of first detection mechanisms are located on the two sides of the crack, so that the degree of bulging or depression on the two sides of the crack can be detected at the same time, and the crack with one side bulging and the other side depressed can also be detected.

[0092] For the two first detection mechanisms in the same group, the front and rear are arranged, and the two groups of data are formed by sequentially passing through the same bulging or depressed position, so that the two groups of data can be compared and averaged to increase the accuracy of the data.

[0093] The horizontal rod on the support corresponds to the supporting leg, and the horizontal rod and the supporting leg are connected by welding, of course, the connection can also be screw fixing.

[0094] Referring to Figure 4 As shown, the concrete crack detection device further comprises a second detection mechanism 5, and the second detection mechanism 5 comprises a detection table 51 and a moving assembly 53 arranged on the detection table 51. The detection table 51 is connected with the four columns, and a connecting body is extended at each corner of the detection table 51. The number of the connecting bodies is four, which are welded or bolted with the corresponding columns.

[0095] The moving assembly 53 comprises a moving piece 531 and a motor 532 arranged at the bottom of the detection table 51. An installation seat can be arranged at the bottom of the detection table 51, and the motor 532 is bolted on the installation seat to increase the stability of the motor 532. The output end of the motor 532 is fixedly connected with a screw rod 533, and the end of the screw rod 533 away from the motor 532 is rotatably connected with the detection table 51 through a bearing. The arrangement of the bearing increases the stability of the rotation of the screw rod 533.

[0096] The moving piece 531 is threadedly connected with the screw rod 533, and the moving piece 531 is slidably connected with the detection table 51. Two third sliding rails are fixedly connected at the bottom of the detection table 51, and a third sliding block is slidably connected on each third sliding rail. The arrangement of the third sliding rails and the third sliding blocks makes the movement of the moving piece 531 more stable.

[0097] Referring to Figure 5As shown, the second detection mechanism 5 further comprises a camera microscope probe 52 and a camera 54, both of which are fixedly connected to the moving piece 531 and are provided with rubber pads between the moving piece 531, so as to prevent the camera microscope probe and the camera 54 from being damaged due to excessive clamping force between the moving piece 531 when being installed by bolts.

[0098] The four connecting bodies are inclined upward towards the center of the detection table 51, thereby raising the position height of the detection table 51, increasing the height space between the detection table 51 and the crack, facilitating the installation of the camera 54 and the camera microscope probe 52, and increasing the installation space of both.

[0099] A mounting bracket is extended on the moving piece 531, which is horizontally arranged and perpendicular to the moving piece 531, and the camera 54 and the camera microscope probe 52 are mounted on the mounting bracket. In this embodiment, the camera microscope probe 52 is located between the camera 54 and the moving piece 531. This position mode facilitates the camera 54 to shoot and image the crack and reduces the influence of the camera microscope probe 52 on the shooting of the camera 54.

[0100] The second detection mechanism 5 further comprises a detection instrument main machine 12 and a display main machine 11, both of which are fixedly connected to the vehicle body 1. The detection instrument main machine 12 is electrically connected to the camera microscope probe 52, and the camera 54 is electrically connected to the display main machine 11. A plurality of through holes are formed on the mounting table, and the wires between the detection instrument main machine 12 and the camera microscope probe 52 and the wires between the camera 54 and the display main machine 11 pass through the through holes for wiring.

[0101] Referring to Figure 6 and Figure 7 As shown, the second detection mechanism 5 further comprises an anti-collision assembly 6, which comprises an anti-collision plate 61 and a rebounding piece 62 connected to the anti-collision plate 61. The recess 511 can be directly formed on the detection table 51.

[0102] Referring to Figure 8 As shown, two shaped pieces 7 can also be installed on the detection table 51, which are symmetrically arranged and form a recess 511 therebetween. The recess 511 comprises an expanded port and a straight port, the expanded port and the straight port are in communication, the inner diameter of the expanded port gradually increases from the end close to the straight port to the end away from the straight port, and the shaped piece 7 comprises a straight rod 71 and an inclined rod 71, which are integrally formed between the straight rod 71 and the inclined rod 72. The straight port is formed between the two straight rods 71, and the inner diameter of the straight port is constant. The expanded port is formed between the two inclined rods 72.

[0103] The resilient member 62 comprises two oppositely arranged resilient pieces, which provide deformation force and restoring force, so that when the resilient pieces move towards the side of the barrier, they will elastically deform, and when the resilient pieces move towards the side away from the barrier, they will directly return to the original position by the restoring force.

[0104] Referring to Figure 6 and Figure 8 , the resilient piece comprises an outwardly expanding section 621 and a smooth section 622 integrally formed with the outwardly expanding section 621. The outwardly expanding section 621 is arranged obliquely, and the outwardly expanding section 621 is in contact with the inner side of the corresponding inclined rod 72. Generally, the smooth section 622 is in contact with the inner side of the corresponding straight rod 71.

[0105] The two outwardly expanding sections 621 expand outwardly in directions away from each other at one end of the outwardly expanding section 621 away from the smooth section 622. When the outwardly expanding section 621 moves towards the smooth section 622, the two outwardly expanding sections 621 are in contact at the connection between the straight rod 71 and the inclined rod 72 and the corresponding outwardly expanding section 621, so that the two outwardly expanding sections 621 deform and move closer to each other.

[0106] The resilient member 62 is embedded in the groove 511, and a cover plate 55 is arranged above the two formed members 7. The cover plate 55 can prevent the resilient member 62 from moving out of the groove 511 in the vertical direction, thereby preventing the resilient member 62 from moving out of the groove 511.

[0107] When the camera microscopic probe 52 is in contact with the anti-collision plate 61, the resilient member 62 deforms. The anti-collision plate 61 is arranged vertically, and is used to be in contact with the camera 54 when the camera 54 moves towards the side of the barrier, thereby preventing the camera 54 from directly colliding with the barrier, and playing a buffering role.

[0108] The material of the anti-collision plate 61 can be rubber or silicone, which has a certain elasticity and shock absorption effect, and can protect the camera 54.

[0109] Referring to Figure 7 , the anti-collision plate 61 comprises a fixing member 611 and an anti-collision body 612. The material of the fixing member 611 can be metal or wood. A plurality of embedding grooves are formed in the top of the anti-collision body 612. The fixing member 611 is embedded in the corresponding embedding groove. The fixing member 611 is arranged vertically, and a connecting opening is formed in the side of the embedding groove towards the resilient member 62. A protrusion is formed on the fixing member 611, which extends out of the corresponding connecting opening and is connected with the corresponding resilient piece.

[0110] The connecting piece can be arranged transversely, the connecting piece connects the two fixing pieces 611, the stability of the two fixing pieces 611 is increased, a connecting groove is arranged between the two embedding grooves, the connecting piece is embedded in the connecting groove, and the two ends of the connecting piece are respectively welded with the corresponding fixing pieces 611, the connection of the two fixing pieces 611 is formed, the material of the connecting piece can be consistent with that of the fixing pieces 611, so that the connecting piece and the fixing pieces 611 can be integrally formed, if the connecting piece and the fixing pieces 611 are integrally formed, the connecting groove needs to penetrate upwardly through the anti-collision body 612, so as to facilitate installation.

[0111] The anti-collision area is enclosed by the plurality of fixing pieces 611, a plurality of notches are arranged in the anti-collision area, and the deformation capacity of the anti-collision area can be improved.

[0112] In addition, the anti-collision frame is arranged on the detection table 51, the touch piece is fixedly connected to the anti-collision frame, the touch piece is a key, the touch piece is arranged towards the side of the anti-collision body 612 and abuts against the anti-collision body, that is, the key is always open under pressure, when the anti-collision body 612 moves towards the side of the barrier, the key is disconnected under pressure, and the motor 532 is connected to the speed controller.

[0113] The speed controller is electrically connected to the key, the key gives two different control signals to the speed controller in two cases of always open under pressure and disconnected under pressure, the speed controller adjusts the input voltage of the motor 532 according to the control signal, so as to control the two rotating speeds of the motor 532, so that when the anti-collision body 612 moves, the rotating speed of the motor 532 is slow, the stability and safety of the movement of the camera 54 are improved, when the anti-collision body 612 stops moving and abuts against the key, the rotating speed of the motor 532 is fast, so that the camera 54 can quickly reach the anti-collision body 612 or quickly reset.

[0114] The use process of the concrete crack detection device in the embodiment is as follows:

[0115] The worker places the vehicle body 1 above the crack, generally at one end of the crack, and the camera 54 images the crack and transmits the imaging data to the display host 11, the display host 11 generates a track route of the crack according to the imaging data, the display host 11 is electrically connected to the control system of the vehicle body 1, and the display host 11 controls the moving direction of the vehicle body 1 through the track route, so that the camera microscopic probe 52 is always located on the track route of the crack.

[0116] The camera microscopic probe 52 detects the width of the crack, and the width data is displayed through the detection instrument host 12, and the worker can observe the running direction of the crack through the display host 11 or the width of the crack through the detection instrument host 12.

[0117] When the vehicle body 1 moves along the track of the crack and encounters a raised side of the crack, the lifting piece 2 is lifted, i.e., the lifting piece 2 moves upward, the vertical rod moves upward to push the connecting plate 231 to rotate upward and slide upward on the second slide rail, the end of the connecting plate 231 away from the spherical universal joint 232 is raised, the connecting plate 231 drives the connecting rod 22 to move away from the end of the bidirectional force sensor 4 through the support rod 233, the connecting rod 22 drives the elastic piece 24 to deform, the elastic piece 24 is stretched, so that the bidirectional force sensor 4 detects the change of the pulling force, generates pulling force data in real time, and indexes the corresponding raised degree data from the data table through the pulling force data, and displays on the display host 11.

[0118] When a raised side of the crack is encountered, the lifting piece 2 is lowered, i.e., the lifting piece 2 moves downward, the vertical rod moves downward to pull the connecting plate 231 to rotate downward and slide downward on the second slide rail, the end of the connecting plate 231 away from the spherical universal joint 232 moves downward, the connecting plate 231 drives the connecting rod 22 to move toward the end of the bidirectional force sensor 4 through the support rod 233, the connecting rod 22 drives the elastic piece 24 to deform, the elastic piece 24 is compressed, so that the bidirectional force sensor 4 detects the change of the pressure, generates pressure data in real time, and indexes the corresponding recessed degree data from the data table through the pressure data, and displays on the display host 11.

[0119] When the vehicle body 1 encounters an obstacle, which can be a wall or a road curb, the vehicle body 1 stops moving, the motor 532 drives the screw rod 533 to rotate forward, thereby driving the moving piece 531 to move toward the side of the obstacle, the camera 54 and the camera microscopic probe 52 simultaneously move toward the side of the obstacle, at this time, the camera 54 continuously shoots and still generates the track of the crack, but the vehicle body 1 does not move, and the camera microscopic probe 52 still detects the width of the crack.

[0120] When the camera 54 moves toward the side of the obstacle, the camera 54 abuts against the anti-collision plate 61 and drives the anti-collision plate 61 to move toward the side of the obstacle, at this time, the elastic return piece 62 deforms, the two elastic return pieces approach each other, until the anti-collision plate 61 abuts against the obstacle, the motor 532 stops rotating and drives the screw rod 533 to reverse, and the process of stopping the motor 532 is completed by the motor 532.

[0121] When the screw rod 533 reverses, the moving piece 531 drives the camera 54 to move away from the side of the obstacle, so that the moving piece 531 resets, in addition, the anti-collision plate 61 resets under the restoring force of the elastic return piece 62.

[0122] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A concrete crack detection apparatus, characterized by: The application relates to a vehicle body (1) and at least one first detection mechanism arranged on the vehicle body (1), wherein the first detection mechanism comprises a lifting piece (2), a transmission assembly (3) and a bidirectional force sensor (4), the lifting piece (2) is slidably connected with the vehicle body (1) in the vertical direction, the lifting piece (2) transmits tension or pressure to the bidirectional force sensor (4) through the transmission assembly (3), a display host (11) is arranged on the vehicle body (1), and the bidirectional force sensor (4) is electrically connected with the display host (11). The transmission assembly (3) comprises a sliding part (21), a connecting rod (22) and a turning part (23), the turning part (23) is connected with the sliding part (21) through the connecting rod (22), the lifting piece (2) is connected with the turning part (23), and the lifting piece (2) moves the connecting rod (22) along the sliding direction of the sliding part (21) through the turning part (23). The sliding part (21) comprises a first sliding rail (211), the first sliding rail (211) is slidably connected with the connecting rod (22), and an elastic piece (24) is arranged between the connecting rod (22) and the vehicle body (1), and the elastic piece (24) is connected with the bidirectional force sensor (4). The turning part (23) comprises a connecting plate (231) and a spherical universal joint (232) connected with the connecting plate (231), the spherical universal joint (232) is fixedly connected with the vehicle body (1), a supporting rod (233) is hinged between the connecting plate (231) and the connecting rod (22), and the lifting piece (2) is slidably connected and hinged with the connecting plate (231).

2. The concrete crack detection apparatus of claim 1, wherein: The application further relates to a second detection mechanism (5), which comprises a detection table (51), a camera microscopic probe (52) and a moving assembly (53) arranged on the detection table (51), a detection instrument host (12) is arranged on the vehicle body (1), the camera microscopic probe (52) is electrically connected with the detection instrument host (12), and the moving assembly (53) is used for driving the camera microscopic probe (52) to move along a preset direction.

3. The concrete crack detection apparatus of claim 2, wherein: The second detection mechanism (5) further comprises a camera (54), the camera (54) is fixedly connected with the moving assembly (53), and the camera (54) is electrically connected with the display host (11).

4. The concrete crack detection apparatus of claim 2, wherein: The moving assembly (53) comprises a moving piece (531) and a motor (532), the motor (532) is fixedly connected on the detection table (51), an output end of the motor (532) is fixedly connected with a screw rod (533), the screw rod (533) is rotatably connected with the detection table (51), the moving piece (531) is slidably connected with the detection table (51) and is threadedly connected with the screw rod (533).

5. The concrete crack detection apparatus of claim 2, wherein: The second detection mechanism (5) further comprises an anti-collision assembly (6), the anti-collision assembly (6) comprises an anti-collision plate (61) and a resilient piece (62) connected with the anti-collision plate (61), a recess (511) is formed on the detection table (51), the resilient piece (62) is embedded in the recess (511), and the camera microscopic probe (52) is deformed when abutting against the anti-collision plate (61).

6. The concrete crack detection apparatus of claim 5, wherein: The anti-collision plate (61) comprises a fixing piece (611) and an anti-collision body (612), the fixing piece (611) is embedded in the anti-collision body (612) and connected with the resilient piece (62).

7. The concrete crack detection apparatus of claim 5, wherein: The resilient piece (62) comprises two oppositely arranged resilient pieces, the resilient piece comprises an outward expansion section (621) and a smooth section (622) integrally formed with the outward expansion section (621), and two ends of the outward expansion section (621) away from the smooth section (622) expand outward in directions away from each other.

Images