A visual displacement measuring device

Abstract

The application discloses a visual displacement measuring device, and particularly relates to the technical field of visual measurement. The device is provided with two sets of clamping stations, a blocking piece one and a blocking piece two, four clamping blocks two are arranged below the device to clamp and limit the lower four corners of a visual detection camera, so that the visual detection camera is automatically centered in the horizontal direction. After the upper pressing plate changes from the upward moving open state to the downward moving pressing state, four clamping blocks one clamp and limit the upper four corners of the visual detection camera, thereby forming a clamping structure matched with the upper and lower parts, improving the stability of the visual detection camera installation, the position accuracy of the lens relative to the view window, and the accuracy of the visual displacement measurement. When one set of visual detection cameras is in the working state, the other set of visual detection cameras can be replaced, repaired or debugged, so that the downtime maintenance time is reduced, and the device use efficiency is improved. The blocking strip one and the blocking strip two limit the position of the corresponding substrate, so that the clamping station does not shake in the working position.

Description

Technical Field

[0001] This invention relates to the field of visual measurement technology, specifically to a visual displacement measurement device. Background Technology

[0002] In scenarios such as engineering monitoring, precision manufacturing, automated testing, civil structure health monitoring, and equipment operation status assessment, it is often necessary to measure the displacement of target objects in real time and accurately. With the development of computer vision, digital image processing, and image recognition technologies, non-contact displacement measurement technology based on machine vision has gradually become an important direction. Existing visual displacement measurement technologies typically acquire target images using industrial cameras or ordinary video equipment, and then combine methods such as marker point recognition, feature matching, optical flow tracking, template matching, or phase analysis to calculate the displacement change of the target in the image coordinate system, and further convert it into actual physical displacement.

[0003] In existing visual displacement measurement devices, the visual inspection camera suffers from insufficient positioning accuracy and poor clamping stability during installation. It is prone to displacement or loosening during rotation switching, vibration environments, or long-term operation, which leads to a decrease in the positional accuracy of the lens relative to the viewing window, affecting the stability of image acquisition and the accuracy of visual displacement measurement. At the same time, existing devices usually require downtime for camera replacement, maintenance, or debugging, resulting in low maintenance efficiency. Furthermore, the clamping station lacks effective limiters at the detection position, which can easily cause shaking, further affecting image quality and detection accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a visual displacement measurement device to solve the problems mentioned in the background art.

[0005] The main technical problem solved by this invention is: The visual inspection camera has insufficient positioning accuracy and poor clamping stability during installation. It is prone to displacement or loosening during rotation switching, vibration environment, or long-term operation, which leads to a decrease in the positional accuracy of the lens relative to the viewing window, affecting the stability of image acquisition and the accuracy of visual displacement measurement.

[0006] This invention can be achieved through the following technical solutions: A visual displacement measuring device includes a protective housing mounted on a base, and a rotating shaft driven by a built-in servo motor is installed inside the protective housing. Two sets of clamping positions for restricting the end of a visual inspection camera are installed on the rotating shaft, and the two sets of clamping positions are symmetrical about the center of the rotating shaft. The clamping station includes a substrate, on the upper surface of which a reference base is mounted that contacts the lower surface of the vision inspection camera, and four locking blocks are slidably embedded in the upper surface of the substrate to simultaneously fix the four corners of the lower part of the vision inspection camera. The upper surface of the substrate is limited by an upper pressure plate that can be raised and lowered. The bottom surface of the upper pressure plate is slidably embedded with four locking blocks that simultaneously fix the four corners of the upper part of the vision inspection camera. All four card blocks move towards the center of the reference base simultaneously with the same sliding distance, and each card block is at the same distance from the center of the reference base. A first resistive element is installed on the inner wall of the protective housing and on the side near the bottom of a substrate. The first resistive element is used to restrict the bottom surface of a substrate. A second resistive element is installed on the inner wall of the substrate and on the side near the top of another substrate. The second resistive element is used to restrict the top surface of the other substrate. The first resistive element and the second resistive element have the same structure. The first type of blocking element includes two blocking strips, namely, a first blocking strip and a second blocking strip, which are slidably mounted on the inner wall groove of the protective housing. The first blocking strip and the second blocking strip can slide closer to each other or slide further away from each other at the same time. A viewing window is embedded in the front surface of the protective housing, and the lens of the visual inspection camera is set at the same height as the viewing window.

[0007] A further technical improvement of the present invention is that, when not sliding, the distance between the first and second barrier strips is greater than the width of the substrate; After sliding, the first and second resistance strips slide closer together, and the distance between the first and second resistance strips is less than the width of the substrate.

[0008] A further technical improvement of the present invention is that: a gear driven by a forward and reverse motor is embedded in the inner wall of the protective shell, an upper rack meshes with the upper end face of the gear, and the end of the upper rack is fixed to the side of the first baffle. The lower end face of the gear meshes with a lower rack, and a connecting block is fixed to the end of the lower rack. The connecting block is fixed to the lower end face of the second baffle. Both the upper and lower racks are slidably fitted with limiting members that are fixed to the inner wall of the protective housing. The surfaces of the upper and lower limiting members are respectively provided with notches for the teeth on the upper and lower racks to pass through.

[0009] A further technical improvement of the present invention is that: the upper rack is fixed to the side edge of the first baffle, and the lower rack is fixed to the side edge of the second baffle through a connecting block; The rotation path of the substrate has a gap with the upper and lower racks.

[0010] A further technical improvement of the present invention is that: a limiting lifting unit is provided on the upper surface of the substrate, the limiting lifting unit includes a telescopic column, an electric push rod is installed on the outer side of the fixed end of the telescopic column, a push block is connected to the pushing end of the electric push rod, and the push block is fixed to the outer side of the telescopic end of the telescopic column.

[0011] A further technical improvement of the present invention is that: two heat dissipation channels are provided on one side surface of the protective housing, and the heat sinks on the visual inspection cameras in the two clamping stations are respectively arranged facing the corresponding heat dissipation channels.

[0012] A further technical improvement of the present invention is that: an eaves plate is provided in the middle of the top surface of the protective shell, the top surface of the eaves plate is set as an arc structure, and supports are installed on both sides of the top of the eaves plate. A photovoltaic panel is hinged to both supports, and a support telescopic rod is hinged to one side of the bottom of the photovoltaic panel. The fixed end of the support telescopic rod is hinged to the side of the protective shell.

[0013] A further technical improvement of the present invention is that: two screws driven by the output end of a dual-axis motor are embedded in the middle surface of the eaves board, each screw is equipped with a limit rod on its upper part, and a slide block that is slidably connected to the corresponding limit rod is threaded onto the external thread of the screw. A transmission rod is hinged to the bottom surface of the slide block, and the end of the transmission rod is hinged to the top side of the photovoltaic panel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up two sets of clamping stations, and stop components one and two, the vision inspection camera obtains a unified reference positioning during the clamping process. Simultaneously, the four lower clamping blocks (two) clamp and limit the four lower corners of the vision inspection camera, automatically centering it horizontally. The upper pressure plate changes from an upward-opening state to a downward-pressing state until it is in contact with the top surface of the vision inspection camera. Then, the four lower clamping blocks (one) simultaneously limit the four upper corners of the vision inspection camera, forming a coordinated clamping structure. This improves the stability of the vision inspection camera installation and prevents the camera from shifting or loosening during rotation, vibration, or prolonged operation. Improving the consistency of camera installation positions ensures the positional accuracy of the lens relative to the viewing window, thereby improving the accuracy of visual displacement measurement. When one set of visual inspection cameras is in operation, another set of visual inspection cameras can be replaced, repaired, or adjusted, thereby reducing downtime maintenance time and improving the efficiency of the device. During measurement, the first and second resistance bars in the first and second resistance bars change from sliding away to sliding closer. The first and second resistance bars form positional constraints on the corresponding substrates, preventing the clamping station from shaking in the working position, ensuring that the visual inspection camera remains stable when acquiring images, and improving the imaging stability and detection accuracy of the visual inspection camera. 2. In addition, when the visual inspection camera is in operation, its internal electronic components will generate heat. The heat is conducted through the camera casing to the heat sink, and then dissipated to the outside air by the heat sink. When the temperature of one visual inspection camera rises due to long-term operation, another visual inspection camera can take over the work by switching work stations, while the original camera continues to dissipate heat and cool down through the corresponding heat dissipation channel, which helps to ensure the continuous operation of the device. 3. By controlling the dual-axis motor to rotate forward or reverse, the two screws can drive the corresponding slides to move in different directions. This, in turn, drives the two photovoltaic panels to adjust their tilt angle synchronously via the transmission rod, thus enabling them to unfold or retract. This achieves synchronous flipping adjustment of the two photovoltaic panels, allowing them to obtain a better angle of sunlight and improve solar energy utilization efficiency. The curved eaves, serving as the installation base for the two screws and their transmission structure, also guides rainwater, reducing rainwater accumulation in the center of the top surface and allowing water to flow out along the curved surface to both sides. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the photovoltaic panel and the protective housing of the present invention; Figure 3 This is a schematic diagram of the internal structure of the protective housing of the present invention; Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the installation structure of the second card block of the present invention; Figure 6 This is a schematic diagram of the installation structure of the first and second barrier strips of the present invention; Figure 7 This is a schematic diagram of the three-dimensional installation structure of the upper rack and the limiting member of the present invention.

[0017] In the diagram: 1. Protective housing; 2. Photovoltaic panel; 3. Heat dissipation duct; 4. Eaves board; 5. Screw; 6. Slide; 7. Transmission rod; 8. Support telescopic rod; 9. Support; 10. Viewing window; 11. Rotating shaft; 12. Base plate; 13. Bar 1; 14. Upper pressure plate; 15. Telescopic column; 16. Electric push rod; 17. Locking block 1; 18. Reference seat; 19. Locking block 2; 20. Limiting component; 21. Upper rack; 22. Gear; 23. Bar 2; 24. Bar 2; 25. Lower rack; 26. Connecting block. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0019] Please see Figures 1-7As shown, the present invention provides a visual displacement measuring device, including a protective housing 1 mounted on a base, a rotating shaft 11 driven by a built-in servo motor installed inside the protective housing 1, and two sets of clamping positions for restricting the end of the visual inspection camera mounted on the rotating shaft 11, the two sets of clamping positions being symmetrical about the center of the rotating shaft 11. The clamping station includes a substrate 12, a reference base 18 that contacts the lower surface of the vision inspection camera is mounted on the upper surface of the substrate 12, and four locking blocks 19 that simultaneously fix the four corners of the lower part of the vision inspection camera are slidably embedded in the upper surface of the substrate 12. The upper surface of the substrate 12 is limited by an upper pressure plate 14, and the bottom surface of the upper pressure plate 14 is slidably embedded with four locking blocks 17 that simultaneously fix the four corners of the upper part of the vision inspection camera. The four card blocks 2 19 move simultaneously toward the center of the reference base 18 with the same sliding distance, and the distance of each card block 2 19 from the center of the reference base 18 is the same. A stopper is installed on the inner wall of the protective housing 1 and on the side near the bottom of a substrate 12. The stopper is used to restrict the bottom surface of the substrate 12. A second resistor 23 is installed on the inner wall of substrate 12 and on the side near the top of another substrate 12. The second resistor 23 is used to restrict the top surface of the other substrate 12. The first resistor and the second resistor 23 have the same structure. The first blocking element includes a first blocking strip 13 and a second blocking strip 24 that are slidably mounted on the inner wall groove of the protective housing 1. The first blocking strip 13 and the second blocking strip 24 slide close to or slide away from each other at the same time. A viewing window 10 is embedded in the front surface of the protective housing 1, and the lens of the visual inspection camera is set at the same height as the viewing window 10.

[0020] During clamping, the vision inspection camera is first placed on the reference base 18 to form a reference support for the vision inspection camera, so that the vision inspection camera can obtain a uniform reference positioning during the clamping process. The four lower locking blocks 19 position and clamp the four lower corners of the vision inspection camera. The four locking blocks 19 simultaneously clamp and limit the four lower corners of the vision inspection camera, so that the vision inspection camera is automatically centered in the horizontal direction, avoiding installation deviation caused by unilateral force. Then, the upper pressure plate 14 changes from the upward opening state to the downward pressing state until the upper pressure plate 14 is in contact with the top surface of the vision inspection camera. Then, the four locking blocks 17 simultaneously limit the four upper corners of the vision inspection camera, thus forming a clamping structure with upper and lower cooperation. By simultaneously clamping the upper and lower four corners of the visual inspection camera with clamp 17 and clamp 219 respectively, the stability of the visual inspection camera installation is improved, preventing the camera from shifting or loosening during rotation switching, vibration environment, or long-term operation, improving the consistency of the camera installation position, ensuring the positional accuracy of the lens relative to the viewing window 10, and thus improving the accuracy of visual displacement measurement.

[0021] When the built-in servo motor is working, the rotating shaft 11 drives the two sets of clamping stations to rotate, realizing the position switching of the two sets of vision inspection cameras. The lens of the vision inspection camera located on the front side is set at the same height as the viewing window 10 on the front surface of the protective housing 1. This vision inspection camera performs image acquisition and visual displacement measurement on the external target through the viewing window 10. The specific measurement technology is existing technology and will not be described in detail here. The other set of clamping stations rotates with the rotating shaft 11 to a non-inspection station for waiting for switching or maintenance. When one set of vision inspection cameras is in working condition, the other set of vision inspection cameras is replaced, repaired, or debugged, thereby reducing downtime maintenance time, improving the efficiency of the device, and is suitable for vision displacement measurement scenarios that require continuous operation, so as to ensure the continuous and stable operation of the device.

[0022] During measurement by the visual inspection camera, the first barrier strip 13 and the second barrier strip 24 in the first barrier and the second barrier 23 change from a sliding away state to a sliding close state. That is, the first barrier strip 13 and the second barrier strip 24 form a position restriction on the corresponding substrate 12. After the clamping station rotates to the predetermined position, it provides auxiliary restriction on the substrates 12 on both sides, that is, it restricts the bottom of one substrate 12 and the top of the other substrate 12, so as to prevent the clamping station from shaking in the working position, ensuring that the visual inspection camera remains stable when acquiring images, improving the imaging stability and detection accuracy of the visual inspection camera, and reducing the measurement error caused by mechanical vibration.

[0023] See Figure 6 and Figure 7 As shown, when not sliding, the distance between the first barrier 13 and the second barrier 24 is greater than the width of the substrate 12; The substrate 12 rotates smoothly to the predetermined station. The first barrier 13 and the second barrier 24 will not interfere with the substrate 12, making it easy for the clamping station to switch positions with the rotation axis 11. After sliding, the first barrier 13 and the second barrier 24 slide closer together, and the distance between the first barrier 13 and the second barrier 24 is less than the width of the substrate 12; A gear 22 driven by a forward and reverse motor is embedded in the inner wall of the protective housing 1. An upper rack 21 meshes with the upper end face of the gear 22, and the end of the upper rack 21 is fixed to the side of the barrier strip 13. The lower end face of gear 22 meshes with a lower rack 25, and a connecting block 26 is fixed to the end of the lower rack 25. The connecting block 26 is fixed to the lower end face of the second stop bar 24. Both the upper rack 21 and the lower rack 25 are slidably fitted with limiting members 20 that are fixed to the inner wall of the protective housing 1. The surfaces of the upper and lower limiting members 20 are respectively provided with notches for the tooth blocks on the upper rack 21 and the lower rack 25 to pass through.

[0024] When the substrate 12 rotates to the target position, the forward and reverse motors start and drive the gear 22 to rotate. The upper rack 21 and the lower rack 25 move in opposite directions. The end of the upper rack 21 is fixed to the side of the first barrier 13, and the end of the lower rack 25 is fixed to the lower end face of the second barrier 24 through the connecting block 26, thereby driving the first barrier 13 and the second barrier 24 to slide closer together synchronously.

[0025] As the first barrier 13 and the second barrier 24 gradually approach each other, the distance between them changes from being greater than the width of the substrate 12 to being less than the width of the substrate 12. This causes the first barrier 13 and the second barrier 24 to abut against the restricted parts on both sides of the corresponding substrate 12, forming a limiting block on the substrate 12. After the clamping station rotates to the detection position, the substrate 12 can be quickly restricted to the predetermined position, reducing the possibility of it continuing to swing, bounce or deviate, and improving the stability of the clamping station in the detection state. The second barrier 23 on the other side limits and blocks the other substrate 12 in the same way.

[0026] During the sliding process of the upper rack 21 and the lower rack 25, the limiting member 20 guides and constrains the movement direction of the upper rack 21 and the lower rack 25, so that they can only slide in a straight line in a predetermined direction, preventing the rack from deflecting, shaking or disengaging during the movement. The notch is used for the tooth blocks on the upper rack 21 and the lower rack 25 to pass through, which not only ensures the normal meshing and transmission between the rack and the gear 22, but also improves the smoothness and reliability of the overall transmission.

[0027] When a workstation switch is required, the forward and reverse motors drive the gears 22 to rotate in opposite directions, causing the upper rack 21 and lower rack 25 to move in opposite directions. This, in turn, causes the first stop bar 13 and the second stop bar 24 to move away synchronously, restoring the initial distance between them to be greater than the width of the substrate 12. At this time, the first stop bar 13 and the second stop bar 24 release their restriction on the substrate 12, allowing the substrate 12 to rotate and switch again with the rotating shaft 11. Thus, through the coordinated action of the motor, gears 22, upper rack 21, lower rack 25, and connecting block 26, the first stop bar 13 and the second stop bar 24 achieve automatic clamping, limiting, and automatic release of the substrate 12.

[0028] See Figure 4 and Figure 7 As shown, the upper rack 21 is fixed to the side edge of the first stop bar 13, and the lower rack 25 is fixed to the side edge of the second stop bar 24 through the connecting block 26. There is a gap between the rotation path of the substrate 12 and the upper rack 21 and the lower rack 25.

[0029] When gear 22 rotates, it can drive the upper rack 21 and the lower rack 25 to move linearly, and further drive the first stop bar 13 and the second stop bar 24 to move synchronously.

[0030] When the clamping station rotates with the rotating shaft 11, the substrate 12 moves along a preset rotation path. Since there is a clearance between the rotation path of the substrate 12 and the upper rack 21 and the lower rack 25, the substrate 12 will not interfere with the upper rack 21 and the lower rack 25 during the rotation switching process, thereby ensuring that the substrate 12 can smoothly complete the station switching.

[0031] Once the substrate 12 rotates to the predetermined detection position, the forward and reverse motor drive gear 22 continues to rotate, causing the upper rack 21 and lower rack 25 to move in their respective directions, and simultaneously bringing the first stop bar 13 and the second stop bar 24 closer together. After the first stop bar 13 and the second stop bar 24 move to the predetermined position, they form a blocking limit on the corresponding substrate 12 to restrict the substrate 12 from continuing to swing or shift, thereby ensuring that the clamping station is stably maintained at the detection position.

[0032] See Figure 4 As shown, a limiting lifting unit is provided on the upper surface of the substrate 12. The limiting lifting unit includes a telescopic column 15. An electric push rod 16 is installed on the outside of the fixed end of the telescopic column 15. A push block is connected to the pushing end of the electric push rod 16. The push block is fixed to the outside of the telescopic end of the telescopic column 15.

[0033] When it is necessary to lift the upper pressure plate 14, the electric push rod 16 is activated. The pushing end of the electric push rod 16 moves outward and pushes the push block to move. Since the push block is fixedly connected to the outer side of the telescopic end of the telescopic column 15, the thrust of the electric push rod 16 can be transmitted to the telescopic column 15, causing the telescopic column 15 to extend axially, thereby driving the upper pressure plate 14 to move upward, so that there is enough clearance space between the upper pressure plate 14 and the vision inspection camera, which facilitates the removal, placement and replacement of the vision inspection camera. After the vision inspection camera is placed on the reference base 18, the lower four corners of the vision inspection camera are positioned and clamped by the lower locking block 19. Then the upper pressure plate 14 moves down and the upper four corners of the vision inspection camera are clamped and limited by the four locking blocks 17 on its bottom surface, thereby completing the upper and lower clamping and fixing of the vision inspection camera.

[0034] See Figure 1 and Figure 3 As shown, two heat dissipation ducts 3 are provided on one side surface of the protective housing 1, and the heat sinks on the visual inspection cameras in the two clamping stations are respectively set to face the corresponding heat dissipation ducts 3.

[0035] When the visual inspection camera is in operation, its internal electronic components continuously generate heat. This heat is conducted through the camera housing to the heat sink, and then dissipated into the outside air by the heat sink. Because the heat sink is oriented towards the corresponding heat dissipation channel 3, the hot air around the heat sink can be discharged from the protective housing 1 more quickly along the direction of the heat dissipation channel 3, improving the heat dissipation conditions inside the protective housing 1 and increasing the overall heat dissipation efficiency of the camera.

[0036] When the temperature of a vision inspection camera rises due to prolonged operation, another vision inspection camera can take over the work by switching workstations, while the original camera continues to dissipate heat and cool down through the corresponding heat dissipation duct 3, which helps to ensure the continuous operation of the device.

[0037] See Figure 1 and Figure 2 As shown, the top surface of the protective housing 1 is provided with an eaves plate 4 in the middle. The top surface of the eaves plate 4 is set as an arc structure, and supports 9 are installed on both sides of the top of the eaves plate 4. Photovoltaic panels 2 are hinged to both supports 9. A support telescopic rod 8 is hinged to one side of the bottom of the photovoltaic panel 2. The fixed end of the support telescopic rod 8 is hinged to the side of the protective housing 1. Two screws 5 driven by the output end of a dual-axis motor are embedded in the middle surface of the eaves 4. Each screw 5 has a limit rod installed on its upper part, and the external thread of the screw 5 is connected to a slide block 6 that is slidably connected to the corresponding limit rod. A transmission rod 7 is hinged to the bottom surface of the slide block 6, and the end of the transmission rod 7 is hinged to the top side of the photovoltaic panel 2. The photovoltaic panel 2 is electrically connected to the power supply module inside the protective housing 1, which is used to convert solar energy into electrical energy and power the device.

[0038] When the dual-axis motor starts and drives the two screws 5 to rotate synchronously, the two slides 6 move synchronously under the cooperation of the screws 5 and the limit rod. The displacement of the slides 6 is transmitted to the top of the photovoltaic panel 2 through the transmission rod 7, causing the photovoltaic panel 2 to flip around the hinge point of the support 9. At the same time, the support telescopic rod 8 on one side of the bottom of the photovoltaic panel 2 extends and swings with the change of the angle of the photovoltaic panel 2 to adapt to the change of position of the photovoltaic panel 2 and provide adaptive support. By controlling the forward or reverse rotation of the dual-axis motor, the two screws 5 can drive the corresponding slides 6 to move in different directions, and then drive the two photovoltaic panels 2 to adjust their tilt angle synchronously through the transmission rod 7 to achieve expansion or contraction. This realizes the synchronous flipping adjustment of the two photovoltaic panels 2, so that the photovoltaic panel 2 can obtain a better angle of light reception. The photovoltaic panel 2 can adjust the angle of light reception according to the direction of light, installation environment or usage requirements, thereby improving the efficiency of solar energy utilization. The curved eaves 4 serves as the installation base for the two screws 5 and their transmission structure, and also plays a role in guiding rainwater, reducing the accumulation of rainwater in the middle of the top surface, and allowing the water to flow out to both sides along the curved surface.

[0039] In use, this invention, by setting up two sets of clamping stations, stopper one and stopper two 23, allows the visual inspection camera to obtain a unified reference positioning during clamping. The four lower locking blocks 19 simultaneously clamp and limit the four lower corners of the visual inspection camera, automatically centering it horizontally. The upper pressure plate 14 changes from an upward-opening state to a downward-pressing state until it is in contact with the top surface of the visual inspection camera. Then, the four locking blocks 17 simultaneously limit the four upper corners of the visual inspection camera, forming a clamping structure that improves the stability of the visual inspection camera installation and prevents the camera from shifting or loosening during rotation, vibration, or prolonged operation. This improves the consistency of camera installation positions, ensures the positional accuracy of the lens relative to the viewing window 10, and thus improves the accuracy of visual displacement measurement. When one set of visual inspection cameras is in working condition, another set of visual inspection cameras can be replaced, repaired, or adjusted, thereby reducing downtime maintenance time and improving the efficiency of the device. During measurement, the first and second resistance bars 13 and 24 in the first and second resistance bars 23 change from sliding away to sliding close. The first and second resistance bars 13 and 24 form positional restrictions on the corresponding substrate 12, preventing the clamping station from shaking in the working position, ensuring that the visual inspection camera remains stable when acquiring images, and improving the imaging stability and detection accuracy of the visual inspection camera. In addition, when the visual inspection camera is in operation, its internal electronic components will generate heat as they continue to operate. The heat is conducted through the camera casing to the heat sink and then dissipated to the outside air by the heat sink. When the temperature of one visual inspection camera rises due to prolonged operation, another visual inspection camera can take over the work by switching workstations, while the original camera continues to dissipate heat and cool down through the corresponding heat dissipation air duct 3, which helps to ensure the continuous operation of the device. By controlling the dual-axis motor to rotate forward or reverse, the two screws 5 can drive the corresponding slides 6 to move in different directions. In turn, the transmission rod 7 drives the two photovoltaic panels 2 to adjust their tilt angle synchronously, so as to unfold or retract them. This achieves synchronous flipping adjustment of the two photovoltaic panels 2, so that the photovoltaic panels 2 can obtain a better angle of light and improve the efficiency of solar energy utilization. The curved eaves 4 serves as the installation base for the two screws 5 and their transmission structure, and also plays a role in guiding rainwater, reducing the accumulation of rainwater in the middle of the top surface, and allowing the water to flow out to both sides along the arc.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A visual displacement measuring device, comprising a protective housing (1) mounted on a base, characterized in that: The protective housing (1) is equipped with a rotating shaft (11) driven by a built-in servo motor. Two sets of clamping stations for restricting the end of the vision inspection camera are installed on the rotating shaft (11). The two sets of clamping stations are symmetrical about the center of the rotating shaft (11). The clamping station includes a substrate (12), on the upper surface of the substrate (12) a reference base (18) that contacts the lower surface of the visual inspection camera, and four locking blocks (19) that simultaneously fix the four corners of the lower part of the visual inspection camera are slidably embedded in the upper surface of the substrate (12). The upper surface of the substrate (12) is limited by an upper pressure plate (14), and the bottom surface of the upper pressure plate (14) is slidably embedded with four locking blocks (17) that simultaneously fix the four corners of the upper part of the visual inspection camera. The four card blocks (19) move simultaneously toward the center of the reference base (18) with the same sliding distance, and the distance between each card block (19) and the center of the reference base (18) is the same; A first stop is installed on the inner wall of the protective housing (1) and on the side near the bottom of a substrate (12). The first stop is used to restrict the bottom surface of a substrate (12). A second resistive element (23) is installed on the inner wall of the substrate (12) and on the side near the top of another substrate (12). The second resistive element (23) is used to restrict the top surface of the other substrate (12). The first resistive element and the second resistive element (23) have the same structure. The first type of blocking element includes a first type of blocking strip (13) and a second type of blocking strip (24) which are limited and slidably installed on the inner wall groove of the protective housing (1). The first type of blocking strip (13) and the second type of blocking strip (24) slide close to each other or slide away from each other at the same time. The protective housing (1) has a viewing window (10) embedded in its front surface, and the lens of the visual inspection camera is set at the same height as the viewing window (10).

2. The visual displacement measuring device according to claim 1, characterized in that, When not sliding, the distance between the first (13) and the second (24) is greater than the width of the substrate (12); After sliding, the first barrier (13) and the second barrier (24) slide closer together, and the distance between the first barrier (13) and the second barrier (24) is less than the width of the substrate (12).

3. The visual displacement measuring device according to claim 1, characterized in that, The inner wall of the protective housing (1) is fitted with a gear (22) driven by a forward and reverse motor. The upper end face of the gear (22) meshes with an upper rack (21). The end of the upper rack (21) is fixed to the side of the first stop bar (13). The lower end face of the gear (22) meshes with a lower rack (25), and a connecting block (26) is fixed to the end of the lower rack (25). The connecting block (26) is fixed to the lower end face of the second baffle (24). The upper rack (21) and the lower rack (25) are both slidably sleeved with limiting members (20) that are fixed to the inner wall of the protective housing (1). The surfaces of the upper and lower limiting members (20) are respectively provided with notches for the teeth on the upper rack (21) and the lower rack (25) to pass through.

4. The visual displacement measuring device according to claim 3, characterized in that, The upper rack (21) is fixed to the side edge of the first stop bar (13), and the lower rack (25) is fixed to the side edge of the second stop bar (24) through the connecting block (26); The rotation path of the substrate (12) has a gap with the upper rack (21) and the lower rack (25).

5. The visual displacement measuring device according to claim 1, characterized in that, The upper surface of the substrate (12) is provided with a limiting lifting unit, which includes a telescopic column (15). An electric push rod (16) is installed on the outside of the fixed end of the telescopic column (15). A push block is connected to the pushing end of the electric push rod (16), and the push block is fixed to the outside of the telescopic end of the telescopic column (15).

6. The visual displacement measuring device according to claim 1, characterized in that, The protective housing (1) has two heat dissipation channels (3) on one side surface, and the heat sinks on the visual inspection cameras in the two clamping stations are respectively set to face the corresponding heat dissipation channels (3).

7. The visual displacement measuring device according to claim 1, characterized in that, The protective housing (1) has an eaves plate (4) in the middle of its top surface. The top surface of the eaves plate (4) is set as an arc structure, and supports (9) are installed on both sides of the top of the eaves plate (4). Photovoltaic panels (2) are hinged to both supports (9). A support telescopic rod (8) is hinged to one side of the bottom of the photovoltaic panel (2). The fixed end of the support telescopic rod (8) is hinged to the side of the protective housing (1).

8. A visual displacement measuring device according to claim 7, characterized in that, Two screws (5) driven by the output end of a dual-axis motor are embedded in the middle surface of the eaves (4). Each screw (5) is equipped with a limit rod on its upper part, and the screw (5) is threaded with a slide block (6) that is slidably connected to the corresponding limit rod. A transmission rod (7) is hinged to the bottom surface of the slide block (6), and the end of the transmission rod (7) is hinged to the top side of the photovoltaic panel (2).

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