Novel concrete material crack testing device based on optical measurement

Abstract

The invention discloses a novel concrete material crack testing device based on optical measurement, and belongs to the technical field of concrete detection.The novel concrete material crack testing device comprises a shell and a handle and further comprises a shooting mechanism, the shooting mechanism comprises a position adjusting assembly arranged below the shell, and a camera and an air control mechanism are arranged below the position adjusting assembly; the air control mechanism is arranged on the upper portion of the shell, the adsorption mechanism comprises adsorption holes evenly formed in the lower portion of the shell, sliding pistons are slidably connected into the adsorption holes, a sliding driving assembly is arranged in the shell, and the ends, away from the air control mechanism, of the adsorption holes are fixedly connected with suction cups. The concrete crack testing device has the advantages of being simple in structure, capable of avoiding the influence of strong wind on equipment and further improving the testing effect of the equipment, and solves the problems that an existing concrete crack testing device cannot be stably fixed to the inclined concrete surface, cannot cope with the influence of the strong wind environment on the equipment and further influences the testing effect of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete detection, and in particular relates to a novel concrete material crack testing device based on optical measurement. Background Art

[0002] In the field of concrete construction, cracks in concrete are a major hazard to concrete structures. The presence of cracks, on the one hand, leads to a decrease in the stiffness and increase in the brittleness of the concrete structure, which reduces the performance of the concrete structure. On the other hand, it also accelerates the aging effect of the environment on the concrete structure, causing the surface protective layer to peel off, affecting the durability of the concrete structure. Therefore, in the field of concrete construction, it is usually necessary to detect cracks on the concrete. Currently, the detection of cracks in concrete structures in the concrete construction field mainly uses a concrete crack testing device, which can accurately identify the location of the cracks, take crack images and upload them, so as to analyze various parameters of the concrete cracks through images, thereby meeting subsequent evaluation and repair requirements and ensuring the safety and stability of the concrete structure.

[0003] The existing concrete crack testing device usually supports the shooting unit above the ground for detection through a bracket. When dealing with horizontal and vertical concrete surfaces, this setting can effectively avoid manual hand-held testing device and prevent image jitter caused by hand shaking, thereby achieving better testing results. However, in actual use, it still generally has some problems. Although it can better realize the detection of horizontal and vertical concrete surfaces, when dealing with inclined concrete surfaces, the existing concrete crack testing device cannot be effectively supported. In this case, the detection can only be carried out by the detection personnel holding the concrete crack testing device, which not only increases the detection difficulty of concrete crack detection, but also causes the captured image to shake due to human operation. In addition, the existing concrete crack testing device will be affected by strong winds and deviate and shake in a strong wind environment, which not only affects the shooting effect of the concrete crack testing device, but also further affects the detection accuracy of the concrete cracks by the detection personnel. Therefore, a new concrete crack testing device that can solve the above problems is needed. Summary of the invention

[0004] In response to the problems existing in the prior art, the present invention provides a new concrete material crack testing device based on optical measurement, which has the advantages of being able to be stably fixed on an inclined concrete surface and avoiding the influence of strong wind on the equipment, thereby improving the testing effect of the equipment. It solves the problem that the existing concrete crack testing device cannot be stably fixed on an inclined concrete surface and cannot cope with the influence of strong wind environment on the equipment, thereby causing position deviation and jitter in the cracks photographed by the equipment, thereby affecting the testing effect of the equipment.

[0005] The present invention is implemented as follows: a novel concrete material crack testing device based on optical measurement comprises a shell, a handle is fixedly connected to the top of the shell, a shooting mechanism comprises a position adjustment component arranged below the shell for adjusting the shooting position, a camera for shooting cracks is arranged below the position adjustment component, a wind control mechanism is arranged above the shell, the wind control mechanism can offset the strong wind blowing in from the side of the device, an adsorption mechanism, the adsorption mechanism comprises adsorption holes evenly opened below the shell, a sliding piston is slidably connected in the adsorption hole, a sliding drive component for driving the sliding piston to slide up and down is arranged inside the shell, a suction cup is fixedly connected to one end of the adsorption hole away from the wind control mechanism, and an air control mechanism is evenly arranged on the inner side of the shell, which can control the air circulation in the adsorption hole.

[0006] As a preferred embodiment of the present invention, the position adjustment component includes a rotating ring gear rotatably connected to the inside of the outer shell, a first mounting groove is opened on the inner side of the outer shell, a first motor is fixedly installed in the first mounting groove, a first gear is fixedly connected to the output end of the first motor, the first gear is meshed with the rotating ring gear, and a sliding drive unit for driving the camera to slide is provided on the inner side of the rotating ring gear.

[0007] As a preferred embodiment of the present invention, the sliding drive unit includes a sliding sleeve fixedly connected to the inner side of the rotating gear ring, the inner wall of the rotating gear ring is provided with a second mounting groove, a second motor is fixedly installed in the second mounting groove, a driving screw is fixedly connected to the output end of the second motor, the driving screw is located in the sliding sleeve, a sliding block is slidably connected in the sliding sleeve, a threaded hole is provided inside the sliding block, the sliding block is threadedly connected to the driving screw through the threaded hole, and the camera is fixedly connected below the sliding block.

[0008] As a preferred embodiment of the present invention, the wind control mechanism includes a mounting frame fixedly connected to the top of the outer shell, a fixing ring is fixedly connected to the top of the mounting frame, a rotating bearing is interference fit on the outer side of the fixing ring, a rotating frame is interference fit on the outer side of the rotating bearing, and a wind net assembly for controlling airflow is arranged above the rotating frame.

[0009] As a preferred embodiment of the present invention, the wind control mechanism also includes a double-headed motor fixedly connected to the bottom of the mounting frame, a rotating blade is arranged above the fixed ring, the end of the double-headed motor away from the camera passes through the mounting frame and the fixed ring and is fixedly connected to the rotating blade, and the end of the double-headed motor close to the camera is transmission connected to the sliding drive assembly.

[0010] As a preferred embodiment of the present invention, the wind net assembly includes a fixed sleeve fixedly connected to the top of the rotating frame, a plurality of airflow sheets with the same direction are fixedly connected to the top of the fixed sleeve, and an airflow net is fixedly connected to the top of the airflow sheets.

[0011] As a preferred embodiment of the present invention, the sliding drive assembly includes a rotating groove opened inside the outer shell, the end of the double-headed motor away from the rotating blade is fixedly connected with a driving ring gear, the driving ring gear is located in the rotating groove, a second gear is rotatably connected in the rotating groove, the driving ring gear is meshed with the second gear, a driving rod is provided in the adsorption hole, the driving rod extends from one end of the suction cup to the rotating groove and is fixedly connected to the second gear, a reciprocating thread groove is opened on the outer side of the driving rod, the sliding piston is sleeved on the outer side of the driving rod, a push rod is fixedly connected to the inner side of the sliding piston, and the push rod is accommodated in the reciprocating thread groove.

[0012] As a preferred embodiment of the present invention, the air control mechanism includes a solenoid valve fixedly connected to the inner wall of the shell, and one end of the solenoid valve close to the suction cup is connected to the interior of the suction cup through a hose.

[0013] As a preferred embodiment of the present invention, an airbag groove is opened at the bottom of the shell, and the airbag groove is located outside the adsorption hole. A pushing airbag is fixedly connected in the airbag groove. The pushing airbag is connected with the inside of the adsorption hole from the top of the adsorption hole through a pipe, and the top of the suction cup is in contact with the bottom of the pushing airbag.

[0014] As a preferred embodiment of the present invention, the handle is provided with control buttons for controlling the operation of the device.

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

[0016] When the present invention is used, the handles need to be held with both hands, and the bottom of the housing needs to be tightly fitted with the inclined concrete surface. Two adjacent adsorption holes are set, which are respectively called the first adsorption hole and the second adsorption hole. Assume that when the device is placed, the sliding piston in the first adsorption hole is located at the top, and the sliding piston in the second adsorption hole is located at the bottom. After starting the sliding drive assembly, the air control mechanism is first opened to make the first adsorption hole communicate with the outside world, and the air is discharged accordingly, while the second adsorption hole forms a negative pressure due to the rise of the sliding piston, and the external air pressure presses the suction cup on the concrete surface. When the sliding piston reaches the bottom and the top in the two adsorption holes respectively, the air control mechanism is closed to isolate the first adsorption hole from the outside world. The sliding drive assembly continues to work, and the sliding piston moves up and down alternately in the two adsorption holes, so that the suction cup is alternately adsorbed on the concrete surface, thereby stabilizing the device. Subsequently, the camera is started, and its angle is adjusted by the position adjustment assembly to aim at the crack for shooting. The captured image will be uploaded and processed for crack detection and evaluation. After the shooting is completed, the air control mechanism is opened again to make the two adsorption holes communicate with the outside world, and the rise of the sliding piston will make the suction cup lose its adsorption force, which is convenient for the removal of the device. In strong wind conditions, the wind control mechanism will offset the strong wind blowing from the side, prevent the equipment from shaking, and ensure the stability and detection quality of the equipment on the inclined concrete surface. In this way, the installation and removal of the equipment becomes simple and quick, and the wind control mechanism effectively avoids the impact of strong wind on the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure provided by an embodiment of the present invention;

[0018] Figure 2 is another perspective structure schematic diagram provided by an embodiment of the present invention;

[0019] Figure 3 The embodiment of the present invention provides Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 The embodiment of the present invention provides Figure 2 A partial enlarged view of point B in the middle;

[0021] Figure 5 is a schematic diagram of the matching structure of the rotating blades provided by an embodiment of the present invention;

[0022] Figure 6 is a schematic diagram of the matching structure of a rotating bearing provided by an embodiment of the present invention;

[0023] Figure 7 The embodiment of the present invention provides Figure 6 A partial enlarged view of point C in the middle;

[0024] Figure 8It is a schematic diagram of the matching structure inside the housing provided by an embodiment of the present invention;

[0025] Fig. 9 The embodiment of the present invention provides Figure 8 A partial enlarged view of point D in the middle;

[0026] Fig.10 The embodiment of the present invention provides Figure 8 A partial enlarged view of point E in the middle;

[0027] Fig.11 It is a structural schematic diagram of a sliding drive assembly and a position adjustment assembly provided by an embodiment of the present invention;

[0028] Fig.12 It is a schematic diagram of the matching structure of the driving rod and the sliding piston provided by an embodiment of the present invention;

[0029] Fig.13 The embodiment of the present invention provides Fig.12 A partial enlarged view of point F in the middle.

[0030] In the figure: 1. shell; 2. handle; 3. camera; 4. sliding piston; 5. suction cup; 6. rotating gear ring; 7. first motor; 8. first gear; 9. sliding sleeve; 10. second motor; 11. driving screw; 12. sliding block; 13. mounting frame; 14. fixing ring; 15. rotating bearing; 16. rotating frame; 17. double-headed motor; 18. rotating blade; 19. fixing sleeve; 20. airflow sheet; 21. airflow net; 22. driving gear ring; 23. second gear; 24. driving rod; 25. push rod; 26. solenoid valve; 27. push airbag; 28. control button. DETAILED DESCRIPTION

[0031] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0032] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0033] refer to Figures 1 to 13A novel concrete material crack testing device based on optical measurement provided by an embodiment of the present invention comprises a shell 1, a handle 2 is fixedly connected to the top of the shell 1, a shooting mechanism, the shooting mechanism comprises a position adjustment component arranged below the shell 1 for adjusting the shooting position, a camera 3 for shooting cracks is arranged below the position adjustment component, a wind control mechanism, the wind control mechanism is arranged above the shell 1, the wind control mechanism can offset the strong wind blowing in from the side of the device, an adsorption mechanism, the adsorption mechanism comprises adsorption holes uniformly opened below the shell 1, a sliding piston 4 is slidably connected in the adsorption hole, a sliding drive component for driving the sliding piston 4 to slide up and down is arranged inside the shell 1, and a suction cup 5 is fixedly connected to one end of the adsorption hole away from the wind control mechanism, and an air control mechanism, the air control mechanism is uniformly arranged on the inner side of the shell 1, and can control the air circulation in the adsorption hole.

[0034] When in use, hold the handle 2 with both hands, and then make the lower surface of the shell 1 fit with the inclined concrete surface, assume that one of the two adjacent adsorption holes is the first adsorption hole, and the other is the second adsorption hole. Assuming that when the device is placed on the inclined concrete surface, the sliding piston 4 in the first adsorption hole is located at the top of the first adsorption hole, then the sliding piston 4 in the second adsorption hole is located at the bottom of the second adsorption hole, and then start the sliding drive component to control the sliding piston 4 in the first adsorption hole to slide downward, and control the sliding piston 4 in the second adsorption hole to slide upward. In this process, it is necessary to first turn on the air control unit. The structure is used to connect the inside of the first adsorption hole with the outside world. The air in the first adsorption hole will be discharged as the sliding piston 4 inside it slides down, and the second adsorption hole will enter a negative pressure state as the sliding piston 4 inside it slides up. In this process, the outside air will cause the suction cup 5 below the second adsorption hole to be adsorbed to the inclined concrete surface. When the sliding piston 4 in the first adsorption hole moves to the bottom, the sliding piston 4 in the second adsorption hole moves to the top, and then the air control mechanism is closed, so that the first adsorption hole is no longer connected to the outside world. Under the continued driving of the sliding drive component, the sliding piston 4 in the first adsorption hole and the second adsorption hole are connected. The sliding piston 4 in the hole will slide up and down reciprocatingly, thereby alternately adsorbing the suction cup 5 on the inclined concrete surface, thereby achieving the purpose of fixing the equipment, and then starting the camera 3, and adjusting the position of the camera 3 through the position adjustment component so that the camera 3 is facing the crack to shoot, and the shot picture will be uploaded and processed for crack detection and evaluation. When the shooting is completed and the equipment needs to be removed, the air control mechanism is started, which will connect the inside of the first adsorption hole and the second adsorption hole with the outside world. With the reciprocating motion of the sliding piston 4, the first adsorption hole and the second adsorption hole will be connected with the outside world as the sliding piston 4 inside them rises. The suction cup 5 will suck air from the boundary, so that the suction cup 5 will no longer have an adsorption effect on the inclined concrete surface. At this time, the equipment can be removed. When the equipment is in a strong wind environment, the wind control mechanism will offset the strong wind blowing in from the side of the equipment, thereby preventing the equipment from shaking. Through this setting, the adsorption hole and the sliding piston 4 can be used to cooperate to fix the equipment, so that the equipment can cope with the inclined concrete surface. At the same time, by adding the air control mechanism, the installation and disassembly of the equipment can be more convenient, and by setting the wind control mechanism, the shaking of the equipment in a strong wind environment can be effectively avoided, thereby effectively improving the use effect of the equipment and ensuring the detection quality of the equipment.

[0035] Further, the position adjustment component includes a rotating ring gear 6 rotatably connected to the inside of the shell 1, a first mounting groove is opened on the inner side of the shell 1, a first motor 7 is fixedly installed in the first mounting groove, a first gear 8 is fixedly connected to the output end of the first motor 7, the first gear 8 is meshed with the rotating ring gear 6, a sliding drive unit for driving the camera 3 to slide is arranged on the inner side of the rotating ring gear 6, the sliding drive unit includes a sliding sleeve 9 fixedly connected to the inner side of the rotating ring gear 6, a second mounting groove is opened on the inner wall of the rotating ring gear 6, a second motor 10 is fixedly installed in the second mounting groove, a driving screw 11 is fixedly connected to the output end of the second motor 10, the driving screw 11 is located in the sliding sleeve 9, a sliding block 12 is slidably connected in the sliding sleeve 9, a threaded hole is opened in the sliding block 12, the sliding block 12 is threadedly connected to the driving screw 11 through the threaded hole, and the camera 3 is fixedly connected below the sliding block 12.

[0036] During use, when the position of the camera 3 needs to be adjusted, the second motor 10 is started, and the second motor 10 drives the driving screw 11 to rotate. Because the sliding block 12 is slidably connected in the sliding sleeve 9, and the sliding block 12 is threadedly connected to the driving screw 11, the sliding block 12 drives the camera 3 to slide under the drive of the driving screw 11, thereby adjusting the position of the camera 3 in a straight line direction. When the position in the straight line direction cannot meet the shooting requirements, the first motor 7 is started, and the first motor 7 drives the rotating ring gear 6 to rotate through the first gear 8. The rotation of the rotating ring gear 6 drives the sliding sleeve 9 inside it to change the straight line direction, so that the end of the camera 3 can point to any position below the device through the cooperation of the first motor 7 and the second motor 10. After the shooting is completed, the device will adjust the angle of the shot picture so that the final output picture is the same as the actual observation direction, which is convenient for subsequent detection. Through this setting, the shooting position of the camera 3 can be quickly adjusted through the control of the first motor 7 and the second motor 10, thereby effectively improving the convenience of the device and ensuring that the device has a better shooting effect.

[0037] Further, the wind control mechanism includes a mounting frame 13 fixedly connected to the top of the housing 1, a fixing ring 14 fixedly connected to the top of the mounting frame 13, a rotating bearing 15 is interference-fitted on the outer side of the fixing ring 14, a rotating frame 16 is interference-fitted on the outer side of the rotating bearing 15, and a wind net assembly for controlling airflow is arranged above the rotating frame 16. The wind control mechanism also includes a double-headed motor 17 fixedly connected to the bottom of the mounting frame 13, a rotating blade 18 is arranged above the fixing ring 14, an end of the double-headed motor 17 away from the camera 3 passes through the mounting frame 13 and the fixing ring 14 and is fixedly connected to the rotating blade 18, and an end of the double-headed motor 17 close to the camera 3 is transmission-connected to the sliding drive assembly, and the wind net assembly includes a fixing sleeve 19 fixedly connected to the top of the rotating frame 16, a plurality of airflow sheets 20 with the same direction are fixedly connected above the fixing sleeve 19, and an airflow net 21 is fixedly connected above the airflow sheet 20.

[0038] During use, when the device needs to be fixed to an inclined concrete surface, the double-headed motor 17 is started. While driving the sliding drive assembly to drive the sliding piston 4 to move up and down, it also drives the rotating blades 18 to rotate. The rotating blades 18 will absorb the air in the outer shell 1 and quickly discharge the air from the top of the device, thereby using the driving force of the blown air to enable the device to have a driving force toward the inclined concrete surface, thereby enabling the device to be more easily adsorbed on the concrete surface to prevent it from slipping. In addition, in this process, because the rotating blades 18 absorb the air under the outer shell 1 and discharge it from the top of the outer shell 1, during the rotation of the rotating blades 18, it will use suction to clean and discharge impurities on the concrete surface and in the cracks, thereby improving the shooting effect of the camera 3 and preventing the presence of impurities from affecting the detection effect of concrete cracks. In a strong wind environment, assuming that the wind direction is the same as the direction of the airflow sheet 20, it is the positive direction. When the strong wind blows from the positive direction When entering, the strong wind airflow will be blown directly from between the airflow pieces 20 onto the rotating blades 18. The rotating blades 18 will convert the strong wind airflow in the horizontal direction relative to the equipment into a propulsion airflow in the vertical direction relative to the equipment by rotating, thereby further pushing the equipment and making the equipment more tightly adsorbed on the concrete surface. When the wind direction changes, because each airflow piece 20 is a unidirectional thinner sheet, when the strong wind blows in from a non-positive direction, the strong wind will blow the airflow piece 20 from the side, so that the airflow piece 20 drives the fixing sleeve 19 to rotate by relying on the rotation of the rotating bearing 15, and then the direction of the airflow piece 20 is the same as the wind direction, so as to achieve the above-mentioned propulsion effect. Through this setting, the rotation of the rotating blades 18 can be moved to make the equipment more firmly fixed, and at the same time clean the concrete surface to ensure the shooting effect of the equipment. In addition, through the cooperation of the airflow piece 20 and the rotating blades 18, the equipment can be used in a strong wind environment, thereby ensuring the detection quality of crack detection.

[0039] Furthermore, the sliding drive assembly includes a rotating groove opened inside the outer shell 1, and the end of the double-headed motor 17 away from the rotating blade 18 is fixedly connected to a driving ring gear 22, and the driving ring gear 22 is located in the rotating groove. A second gear 23 is rotatably connected in the rotating groove, and the driving ring gear 22 is meshed with the second gear 23. A driving rod 24 is provided in the adsorption hole, and the end of the driving rod 24 away from the suction cup 5 extends into the rotating groove and is fixedly connected to the second gear 23. A reciprocating thread groove is opened on the outer side of the driving rod 24, and the sliding piston 4 is sleeved on the outer side of the driving rod 24. A push rod 25 is fixedly connected to the inner side of the sliding piston 4, and the push rod 25 is accommodated in the reciprocating thread groove.

[0040] When in use, start the double-headed motor 17, the double-headed motor 17 will drive the driving ring gear 22 to drive the second gear 23 to rotate, thereby driving the driving rod 24 to rotate. Because a reciprocating threaded groove is provided on the outside of the driving rod 24, while the driving rod 24 rotates, it will drive the sliding piston 4 to slide back and forth up and down through the push rod 25. Similarly, assuming the first adsorption hole and the second adsorption hole, when the sliding piston 4 in the first adsorption hole is located at its uppermost position, the sliding piston 4 in the second adsorption hole is located at its lowermost position. Through this setting, the unidirectional rotation of the double-headed motor 17 can be used to drive the sliding piston 4 to slide back and forth up and down. At the same time, by setting the initial position of the sliding piston 4 at different positions, the alternating adsorption of the adsorption holes can be achieved, thereby effectively improving the adsorption effect of the equipment and preventing the equipment from falling.

[0041] Furthermore, the air control mechanism includes a solenoid valve 26 fixedly connected to the inner wall of the shell 1, and one end of the solenoid valve 26 close to the suction cup 5 is connected to the interior of the suction cup 5 through a hose. An airbag groove is opened at the bottom of the shell 1, and the airbag groove is located outside the adsorption hole. A pushing airbag 27 is fixedly connected in the airbag groove, and the pushing airbag 27 is connected to the interior of the adsorption hole from the top of the adsorption hole through a pipe. The top of the suction cup 5 is in contact with the bottom of the pushing airbag 27, and a control button 28 for controlling the operation of the device is provided on the handle 2.

[0042] When in use, as the sliding piston 4 slides upward, it will discharge the air in the adsorption hole above the sliding piston 4 into the pushing airbag 27. As the air in the pushing airbag 27 continues to increase, it will push the suction cup 5 below to be closer to the inclined concrete surface, thereby cooperating with the bottom of the sliding piston 4 which is gradually entering a negative pressure state to make the device better adsorbed on the inclined concrete surface to prevent air leakage. When the device is just placed on the inclined concrete surface, the first adsorption hole and the second adsorption hole are assumed in the same way. If the sliding piston 4 in the first adsorption hole is at the top at this time, it is necessary to first open the solenoid valve 26 connected to the inside of the first adsorption hole, otherwise it is necessary to first open the solenoid valve 26 connected to the second adsorption hole. The solenoid valve 26 connected to the inside of the hole, after the air in the first adsorption hole or the second adsorption hole is completely discharged through the solenoid valve 26, the opened solenoid valve 26 is closed, and the equipment is installed. When the equipment needs to be removed, all the solenoid valves 26 are opened, and as the sliding piston 4 inhales air from the outside through the solenoid valve 26, the equipment can be removed. The control button 28 is set on the handle 2, which can effectively improve the convenience of using the equipment, so that the user can operate the equipment according to specific circumstances. Through this setting, the pushing airbag 27 and the solenoid valve 26 can be used to further improve the installation and fixing effect of the equipment, so that the equipment can cope with inclined concrete surfaces. The equipment is easy to use and can effectively improve the detection effect of concrete crack detection.

[0043] Working principle of the present invention:

[0044] During operation, hold the handle 2 with both hands and ensure that the lower surface of the housing 1 is in close contact with the inclined concrete surface. Set two adjacent adsorption holes, which are called the first adsorption hole and the second adsorption hole. Assume that when the device is placed on the inclined concrete surface, the sliding piston 4 in the first adsorption hole is located at the top, and the sliding piston 4 in the second adsorption hole is located at the bottom. Start the sliding drive assembly to move the sliding piston 4 in the first adsorption hole downward, and at the same time move the sliding piston 4 in the second adsorption hole upward. In this process, it is necessary to first open the air control mechanism to make the first adsorption hole communicate with the outside world, and as the sliding piston 4 descends, the air is discharged. The second adsorption hole forms a negative pressure due to the rise of the sliding piston 4, and the external air pressure causes the suction cup 5 to be adsorbed on the concrete surface. When the sliding piston 4 reaches the bottom and top of the two adsorption holes respectively, the air control mechanism is closed to isolate the first adsorption hole from the outside world. The sliding drive assembly continues to work, and the sliding piston 4 moves up and down alternately in the two adsorption holes, so that the suction cup 5 is alternately adsorbed on the concrete surface, thereby stabilizing the device. Then start the camera 3, and adjust its position through the position adjustment assembly to aim at the crack for shooting. The captured images will be uploaded and processed for crack detection and evaluation. After the shooting is completed, the air control mechanism is started again to connect the two adsorption holes to the outside world. The reciprocating motion of the sliding piston 4 will cause the suction cup 5 to detach from the concrete surface, making it easier to remove the equipment. In a strong wind environment, the wind control mechanism will offset the strong wind blowing from the side and prevent the equipment from shaking. With this design, combined with the synergistic effect of the adsorption holes and the sliding piston 4, the equipment can be stably fixed on the inclined concrete surface. The addition of the air control mechanism simplifies the installation and disassembly process of the equipment, and the setting of the wind control mechanism effectively avoids the shaking of the equipment in a strong wind environment, thereby improving the use efficiency of the equipment and the accuracy of detection.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel concrete material crack testing device based on optical measurement, comprising a housing (1), a handle (2) fixedly connected to the top of the housing (1), characterized in that: It also comprises a photographing mechanism, the photographing mechanism comprising a position adjustment component arranged below the housing (1) for adjusting the photographing position, and a camera (3) for photographing the crack is arranged below the position adjustment component; A wind control mechanism, the wind control mechanism being arranged above the housing (1) and being capable of counteracting strong wind blowing in from the side of the device; An adsorption mechanism, the adsorption mechanism comprising adsorption holes uniformly arranged below the housing (1), a sliding piston (4) being slidably connected in the adsorption hole, a sliding drive assembly for driving the sliding piston (4) to slide up and down being arranged inside the housing (1), and a suction cup (5) being fixedly connected to one end of the adsorption hole away from the wind control mechanism; An air control mechanism is evenly arranged on the inner side of the shell (1) and can control the air circulation in the adsorption hole.

2. A novel concrete material crack testing device based on optical measurement as claimed in claim 1, characterized in that: The position adjustment component comprises a rotating gear ring (6) rotatably connected to the inside of the housing (1); a first mounting groove is provided on the inner side of the housing (1); a first motor (7) is fixedly installed in the first mounting groove; an output end of the first motor (7) is fixedly connected to a first gear (8); the first gear (8) is meshed with the rotating gear ring (6); and a sliding drive unit for driving the camera (3) to slide is provided on the inner side of the rotating gear ring (6).

3. A novel concrete material crack testing device based on optical measurement as claimed in claim 2, characterized in that: The sliding drive unit comprises a sliding sleeve (9) fixedly connected to the inner side of the rotating gear ring (6); a second mounting groove is provided on the inner wall of the rotating gear ring (6); a second motor (10) is fixedly installed in the second mounting groove; a driving screw (11) is fixedly connected to the output end of the second motor (10); the driving screw (11) is located in the sliding sleeve (9); a sliding block (12) is slidably connected in the sliding sleeve (9); a threaded hole is provided inside the sliding block (12); the sliding block (12) is threadedly connected to the driving screw (11) through the threaded hole; and the camera (3) is fixedly connected below the sliding block (12).

4. A novel concrete material crack testing device based on optical measurement as claimed in claim 1, characterized in that: The wind control mechanism comprises a mounting frame (13) fixedly connected to the upper part of the housing (1); a fixing ring (14) is fixedly connected to the upper part of the mounting frame (13); a rotating bearing (15) is interference-fitted on the outer side of the fixing ring (14); a rotating frame (16) is interference-fitted on the outer side of the rotating bearing (15); and a wind net assembly for controlling airflow is arranged above the rotating frame (16).

5. A novel concrete material crack testing device based on optical measurement as claimed in claim 4, characterized in that: The wind control mechanism also includes a double-headed motor (17) fixedly connected to the bottom of the mounting frame (13); a rotating blade (18) is arranged above the fixing ring (14); one end of the double-headed motor (17) away from the camera (3) passes through the mounting frame (13) and the fixing ring (14) and is fixedly connected to the rotating blade (18); and one end of the double-headed motor (17) close to the camera (3) is transmission-connected to the sliding drive assembly.

6. A novel concrete material crack testing device based on optical measurement as claimed in claim 4, characterized in that: The wind net assembly comprises a fixed sleeve (19) fixedly connected to the top of the rotating frame (16), a plurality of airflow sheets (20) facing the same direction are fixedly connected to the top of the fixed sleeve (19), and an airflow net (21) is fixedly connected to the top of the airflow sheets (20).

7. A novel concrete material crack testing device based on optical measurement as claimed in claim 5, characterized in that: The sliding drive assembly comprises a rotating groove opened inside the housing (1); one end of the double-headed motor (17) away from the rotating blade (18) is fixedly connected to a driving ring gear (22); the driving ring gear (22) is located in the rotating groove; a second gear (23) is rotatably connected in the rotating groove; the driving ring gear (22) is meshed with the second gear (23); a driving rod (24) is arranged in the adsorption hole; one end of the driving rod (24) away from the suction cup (5) extends into the rotating groove and is fixedly connected to the second gear (23); a reciprocating thread groove is opened on the outer side of the driving rod (24); the sliding piston (4) is sleeved on the outer side of the driving rod (24); a push rod (25) is fixedly connected to the inner side of the sliding piston (4); the push rod (25) is accommodated in the reciprocating thread groove.

8. A novel concrete material crack testing device based on optical measurement as claimed in claim 1, characterized in that: The air control mechanism comprises a solenoid valve (26) fixedly connected to the inner wall of the housing (1); one end of the solenoid valve (26) close to the suction cup (5) is connected to the interior of the suction cup (5) through a hose.

9. A novel concrete material crack testing device based on optical measurement as claimed in claim 1, characterized in that: An airbag groove is provided at the bottom of the shell (1), and the airbag groove is located outside the adsorption hole. A pushing airbag (27) is fixedly connected in the airbag groove. The pushing airbag (27) is connected to the inside of the adsorption hole from the top of the adsorption hole through a pipeline, and the top of the suction cup (5) is in contact with the bottom of the pushing airbag (27).

10. A novel concrete material crack testing device based on optical measurement as claimed in claim 1, characterized in that: The handle (2) is provided with a control button (28) for controlling the operation of the device.

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