A probe box for vehicle tread image acquisition and synthesis system

Abstract

The present application provides a probe box of a vehicle tread image acquisition and synthesis system, including a fixed seat, located between two adjacent sleepers; a seat plate, fixed on the fixed seat; a shell, having a bottom plate, and fixed on the seat plate through the bottom plate; a camera and a light source are arranged in the shell for acquiring vehicle tread images; a clamp, fixed on the fixed seat, for clamping on one side of the rail; a center pin is arranged at the center of the seat plate, and a center hole is arranged at the center of the bottom plate, and the center pin is inserted into the center hole, so that the probe box shell rotates relative to the seat plate along the center pin; the edge of the bottom plate is also provided with a plurality of adjustment holes, and bolts pass through the adjustment holes to fix the bottom plate on the seat plate, and the adjustment holes are arc-shaped, so that the rotation angle of the shell can be adjusted by adjusting the position of the bolts in the adjustment holes during installation. The present application realizes the adjustment of the rotation angle of the light source and the camera by rotating the shell.

Description

Technical Field

[0001] The present application belongs to the field of vehicle safety monitoring, and specifically relates to a probe box of a vehicle tread image acquisition and synthesis system. Background Art

[0002] Wheel tread damage is an important factor affecting vehicle operation safety. The vehicle tread image acquisition and synthesis system is a detection system for wheel tread damage. It can solve the dynamic acquisition and detection of image information (peeling, abrasion, etc.) on the wheel tread surface under vehicle operation, improve the automation of wheel tread detection, save human resources and time, and the probe box is an important part of the system. The probe box is the acquisition front end of the vehicle tread image acquisition and synthesis system, responsible for the acquisition of wheel tread images. The probe box is composed of a camera, a fill light source, and a protective box shell.

[0003] At present, the probe boxes of vehicle tread image acquisition and synthesis systems on the market are mostly used for low-speed dynamic equipment, and the use environment is relatively good. The protection of the camera and the front end of the light source is mainly completed by glass. However, on dynamic high-speed equipment, there are higher requirements for dust prevention and protection. At present, the design of tread probe boxes for high-speed running equipment has not appeared on the market. Due to the width limit of the distance between sleepers on the railway, the horizontal rotation angle of the protection box is limited, and the rotation angle cannot be adjusted well; when the equipment fails, the state of the protection door is uncertain. When the protection door fails and is in the open state for a long time, the camera light source will not work normally due to dust blocking. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a probe box for a vehicle tread image acquisition and synthesis system.

[0005] In order to achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0006] A probe box of a vehicle tread image acquisition and synthesis system comprises a fixing seat, located between two adjacent sleepers; a seat plate, fixed on the fixing seat; a shell, having a bottom plate and fixed to the seat plate through the bottom plate; a camera and a light source are arranged in the shell for acquiring vehicle tread images; a clamp is fixed on the fixing seat and is used to clamp on one side of a rail; a center pin is provided at the center of the seat plate, and a center hole is provided at the center of the bottom plate, and the center pin is inserted into the center hole so that the probe box shell rotates along the center pin relative to the seat plate; a plurality of adjustment holes are also provided at the edge of the bottom plate, and bolts are passed through the adjustment holes to fix the bottom plate to the seat plate, and the adjustment holes are arc-shaped, so that the rotation angle of the shell can be adjusted by adjusting the position of the bolts in the adjustment holes during installation.

[0007] Furthermore, the shell is a trapezoidal body, and two diagonals on the longest diagonal line are cut into avoidance surfaces.

[0008] Furthermore, the seat plate is provided with a plurality of strip holes, and bolts pass through the strip holes to fix the seat plate to the fixing seat; and the extending direction of the strip holes is perpendicular to the rails.

[0009] Furthermore, a shock absorbing block is provided at the connection between the seat plate and the fixing seat.

[0010] Preferably, the shell is provided with a first opening corresponding to the camera, and a second opening corresponding to the light source; a baffle is rotatably mounted on the side wall of the shell; the baffle is driven to rotate by a servo motor arranged in the shell to achieve blocking or opening of the first opening and the second opening.

[0011] Preferably, the servo motor is fixed on the side wall of the motor mounting plate, and the bottom of the motor mounting plate is fixed on the base plate; a counterweight block is provided on a side of the baffle relatively close to the motor mounting plate, so that the baffle automatically rotates to a horizontal state under the action of gravity to achieve shielding of the first opening and the second opening.

[0012] Preferably, a limit block for supporting the baffle is provided on one side of the motor mounting plate close to the baffle; when the baffle rotates to a horizontal state, it hits the limit block and remains horizontal under the action of the limit block.

[0013] Preferably, a torsion spring is provided on one side of the motor mounting plate close to the baffle, and the first leg at one end of the torsion spring is inserted into the motor mounting plate, and the second leg at the other end is bent once in a direction perpendicular to the motor mounting plate and then bent once in a direction parallel to the motor mounting plate, so that the baffle is engaged with the second leg when it rotates to a vertical state; when the servo motor is damaged, the baffle can rotate back under the action of the torsion spring elastic force until it rotates to a horizontal state under the action of the counterweight block and the limit block.

[0014] Furthermore, the camera is fixed inside the shell by a camera bracket, and the camera is rotatably connected to the vertical surface of the camera bracket by a pin shaft. A first arc groove is also provided on the vertical surface of the camera bracket, and a bolt passes through the first arc groove to fix the camera on the vertical surface of the camera bracket, so that the pitch angle of the camera shooting can be adjusted by adjusting the position of the bolt in the first arc groove during installation.

[0015] Furthermore, the camera is fixed inside the shell by a camera bracket, and the horizontal plane of the camera bracket is rotatably connected to the base plate by a pin shaft. A second arc groove is also provided on the horizontal plane of the camera bracket, and a bolt passes through the second arc groove to fix the camera bracket to the base plate. During installation, the horizontal angle of the camera shooting is adjusted by adjusting the position of the bolt in the second arc groove.

[0016] This application has the following beneficial effects:

[0017] The probe box described in the present application is connected to the seat plate and the probe box housing in a rotatable manner through a center pin on the seat plate and a center hole on the bottom plate. The bottom plate is provided with an adjustment hole, and the rotation angle of the housing can be rotated and adjusted during installation, thereby achieving the best angle of camera shooting and light source.

[0018] Compared with the shells in the prior art, the probe box shell described in the present application has a diagonal cut off on the diagonal line, so as to leave space for the rotation of the probe box shell when the distance between sleepers is too small, so that the rotation of the probe box is not restricted by the small distance between sleepers, thereby facilitating the rotation of the probe box shell.

[0019] The strip holes also facilitate the adjustment of the distance between the seat plate and the track to achieve the best shooting and lighting angles. The light source and camera can be rotated by rotating the shell as a whole to achieve the best shooting angle. The shock absorber reduces the vibration when the vehicle passes by, thereby reducing the impact on the camera image acquisition.

[0020] The camera and light source of the probe box described in the present application are located on the same horizontal line, and only a baffle needs to be set to achieve the shielding and protection of the camera and the light source.

[0021] At the same time, a counterweight is provided on the baffle described in the present application. When the servo motor is damaged or does not work, the baffle relies on the gravity of the counterweight and automatically rotates back to the shielding state to prevent dust from accumulating on the surface of the camera lens light source when the servo motor is damaged or the protective door of the existing camera lens cannot return to its position in time, thereby affecting normal shooting. It has a good dust-proof effect and protects the light source and camera.

[0022] The torsion spring design of the present application further ensures that the baffle can return to its position automatically; when the servo motor is working normally, the motor torque is greater than the spring torque, and the baffle relies on the motor torque to return to its position; when the servo motor is damaged, it relies on the spring torque to return to its position, and after hitting the limit block, it relies on the gravity of the counterweight block to maintain the blocked state.

[0023] The present application realizes the adjustment of the pitch angle and horizontal angle of the camera by designing a first arc groove on the vertical surface of the camera bracket and a second arc groove on the horizontal surface.

[0024] In general, the probe box described in the present application adjusts the horizontal rotation angle of the light source by rotating the box body; and adjusts the horizontal rotation angle and pitch angle of the camera to make the camera position angle in the optimal state for image capture; it not only adjusts the light source and the camera, but also can realize the dust-proof function of the lens through the automatic return baffle, thereby better protecting the camera lens and the surface glass of the light source, and playing a key role in ensuring the stable and reliable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1-8 This is a schematic diagram of the probe box structure described in this application;

[0027] Fig. 9 This is a schematic diagram of the torsion spring structure described in this application.

[0028] Description of reference numerals:

[0029] 1. Shell; 2. Seat plate; 3. Bottom plate; 4. Camera; 5. Light source; 6. Fixed seat; 7. Sleeper; 8. Clamp; 9. Shock absorber; 10. Baffle; 11. Servo motor; 12. Servo motor controller; 13. Motor mounting plate; 14. Camera bracket; 15. Track; 16. Magnetic steel;

[0030] 111, first opening; 112, second opening;

[0031] 21. Center pin; 22. Strip hole;

[0032] 31. Center hole; 32. Adjustment hole;

[0033] 51. Light source bracket; 121. Motor shaft;

[0034] 101. column; 102. counterweight;

[0035] 131. limit block; 132. torsion spring; 133. first support leg; 134. second support leg; 135. opening;

[0036] 141. A first arc-shaped groove; 142. A second arc-shaped groove. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It is also necessary to explain that, for ease of description, only the parts related to the application are shown in the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] A probe box of a vehicle tread image acquisition and synthesis system, comprising a fixed seat 6 located between two adjacent sleepers 7; a seat plate 2 fixed on the fixed seat 6; a shell 1 having a bottom plate 3 and fixed to the seat plate 2 via the bottom plate 3; a camera 4 and a light source 5 are arranged in the shell 1 for acquiring vehicle tread images; a clamp 8 is fixed on the fixed seat 6 and is used to clamp on one side of a rail 15; a center pin 21 is arranged at the center of the seat plate 2, and a center hole 31 is arranged at the center of the bottom plate 3, the center pin 21 penetrates into the center hole 31, so that the probe box shell 1 rotates along the center pin 21 relative to the seat plate 2; a plurality of adjustment holes are also arranged on the edge of the bottom plate 3, bolts pass through the adjustment holes 32 to fix the bottom plate 3 to the seat plate 2, and the adjustment holes 32 are arc-shaped, so that the rotation angle of the shell 1 can be adjusted by adjusting the position of the bolts in the adjustment holes 32 during installation.

[0040] Specifically, please refer to Figures 1 to 9 , the seat plate 2 is used to connect the shell 1 of the probe box and the fixed seat 6. The fixed seat 6 is composed of two angle steels and two sheet steels to form a quadrilateral structure. The two angle steels and the sleeper 7 are arranged in parallel and parallel to each other. The two sheet steels are respectively fixed to the two angle steels and the two sheet steels are parallel to each other. The two chucks of the clamp 8 clamp the two ends of the track 15, and the bottom of the clamp 8 is fixedly connected to the fixed seat 6. The fixed seat 6 and the seat plate 2 play a role in fixing and limiting the probe box. It should be understood here that there are multiple probe boxes, which are fixed under the track 15 to collect vehicle tread information of passing vehicles. On the one hand, the shell 1 protects the components such as the camera 4 and the light source 5 provided therein, and on the other hand, the design of the center pin 21 and the center hole 31 makes it convenient to adjust the angle of the camera 4 and the light source 5 relative to the seat plate 2.

[0041] In a specific embodiment of the present application, Figure 5 As shown, three adjustment holes 32 are provided at the edge of the base plate 3, and the adjustment holes 32 are bent into an arc shape toward the small and medium holes. Bolts pass through the adjustment holes 32 and are fixed to the base. During installation, the base plate 3 is rotated to rotate the probe box, and the light source 5 or the camera 4 is adjusted to the optimal angle to facilitate image acquisition.

[0042] Furthermore, the housing 1 is a trapezoidal body, and two diagonals on the longest diagonal line are cut into avoidance surfaces.

[0043] Specifically, Figure 1-3 As shown, the shape of the shell 1 described in the present application is different from the shape of the probe box in the prior art, and the irregular design with missing corners solves the problem that the box cannot be rotated at a large angle due to the limitation of the railway sleeper spacing.

[0044] Furthermore, a plurality of strip holes 22 are formed on the seat plate 2 , and bolts pass through the strip holes 22 to fix the seat plate 2 on the fixing seat 6 ; the extending direction of the strip holes 22 is perpendicular to the rails 15 .

[0045] Specifically, Figure 2 As shown, the strip hole 22 is located above the angle steel, so that the distance between the seat plate 2 and the track 15 can be adjusted, and thus the position of the probe box and the track 15 can be adjusted, which facilitates adjusting the light source 5 and the camera 4 to the optimal position during the installation of the probe box.

[0046] In a specific embodiment of the present application, the number of the strip-shaped holes 22 is 4, and adjusting the distance between the entire detection box and the track 15 is convenient, simple, and easy to implement.

[0047] Furthermore, a shock absorbing block 9 is provided at the connection between the seat plate 2 and the fixing seat 6 .

[0048] Specifically, Figure 2 As shown, there are two shock-absorbing blocks 9, which are made of rubber and fixed above the angle steel and below the seat plate 2, to reduce the vibration when the vehicle passes by, and reduce the impact of the vibration generated by the passing of the train, especially the high-speed train, on the photo collection, improve the shooting effect, and thus improve the stability and reliability of the system.

[0049] Preferably, the shell 1 is provided with a first opening 111 corresponding to the camera 4, and is provided with a second opening 112 corresponding to the light source 5; a baffle 10 is rotatably mounted on the side wall of the shell 1; the baffle 10 is driven to rotate by a servo motor 11 arranged in the shell 1 to achieve covering or opening of the first opening 111 and the second opening 112.

[0050] Specifically, the camera 4 is fixed on the base plate 3, and the light source 5 is also fixed on the base plate 3. The light source 5 and the camera 4 are located on the same horizontal line. A first opening 111 and a second opening 112 are provided on the side wall of the probe box shell 1 facing the vehicle tread. The first opening 111 is used for illumination by the light source 5, and the second opening 112 is used for shooting by the camera 4. A baffle 10 is provided between the side wall of the shell 1 having the first opening 111 and the second opening 112 and the camera 4. The baffle 10 is used to block the first opening 111 and the second opening 112. A column 101 extends from the center toward the direction close to the camera 4; the servo motor 11 is on one side of the motor mounting plate 13, and the motor shaft 121 of the servo motor 11 passes through the motor mounting plate 13 and is connected to the baffle 10 column 101 located on the other side of the motor mounting plate 13, and the bottom of the motor mounting plate 13 is fixed on the base plate 3; the rotation of the motor shaft 121 drives the baffle 10 to rotate in the vertical plane with the column 101 as the center; when the probe box is on standby, the baffle 10 is in a horizontal state, shielding and protecting the camera 4 and the light source 5; when the probe box is working, the baffle 10 rotates to a vertical state, and the camera 4 and the light source 5 are no longer shielded.

[0051] Specifically, Figure 4-8 As shown, the camera 4 is fixed on the bottom plate 3 through the camera bracket 14, and the light source 5 is fixed on the bottom plate 3 through the light source bracket 51. The motor shaft 121 of the servo motor 11 is inserted into the column 101 at the center of the baffle 10 and fixed by a fastening screw. The motor mounting plate 13 is used to fix the servo motor 11. The servo motor 11 is electrically connected to the servo motor controller 12, and the magnetic steel 16 is located on the side wall of the rail and is fixed on the fixture 8 through a magnetic steel clamp. When the servo motor controller 12 receives the passing signal transmitted by the magnetic steel 16, the servo motor 11 is controlled to start. After the servo motor 11 is started, the motor shaft 121 rotates, driving the baffle 10 to rotate around the column 101 as the center, rotate to a vertical state, cancel the shielding of the camera 4 and the light source 5, and the camera 4 and the light source 5 perform image acquisition. When there is no train passing, the servo motor 11 receives the signal, the motor shaft 121 rotates, and the baffle 10 rotates to a horizontal state, starting the dustproof and protective function for the camera 4 and the light source 5. The baffle 10 is placed between the camera 4, the light source 5 and the side wall of the housing 1, and the center of the light, the center of the camera 4 and the rotation center of the baffle 10 are on the same horizontal line. When the probe box device is on standby, the baffle 10 rotates to a horizontal position, shielding the camera 4 and the light source 5 at the same time, playing a role of dust prevention and protection for the camera 4 and the light source 5. When the probe box device is working, the baffle 10 rotates to a vertical position, and the shielding of the camera 4 and the light source 5 is cancelled at the same time. The baffle 10 forms an automatic protective door structure for the glass mirror of the camera 4 and the light source 5, ensuring that the shielding state of the camera 4 and the light source 5 is consistent, and realizing the use of a baffle 10 to protect the camera 4 and the light source 5 at the same time.

[0052] In a specific embodiment of the present application, Figure 6 and Figure 8 As shown, the motor mounting plate 13 is provided with an opening 135 for the camera 4 to facilitate the shooting of the camera 4. Of course, the motor mounting plate 13 can also be adapted to the shape of the camera 4 lens by setting a slot or the like to avoid blocking the camera 4 to ensure the function of the camera 4 shooting.

[0053] Preferably, the servo motor 11 is fixed to the side wall of the motor mounting plate 13, and the bottom of the motor mounting plate 13 is fixed to the base plate 3; a counterweight block 102 is provided on a side of the baffle 10 relatively close to the motor mounting plate 13, so that the baffle 10 automatically rotates to a horizontal state under the action of gravity to achieve shielding of the first opening 111 and the second opening 112.

[0054] Specifically, Figure 4 and Figure 7 As shown, a counterweight block 102 is welded on the back of the baffle 10 near the camera 4 to ensure that when the baffle 10 is horizontal, the center is on the motor shaft 121 and biased towards the camera 4. When the probe box equipment is on standby, the baffle 10 rotates to a horizontal position and can rely on its own gravity to maintain the horizontality. There is no need to continuously power the motor when in standby mode, thereby reducing the power consumption of the equipment.

[0055] Preferably, a limit block 131 for supporting the baffle 10 is provided on one side of the motor mounting plate 13 close to the baffle 10 ; when the baffle 10 rotates to a horizontal state, it hits the limit block 131 and remains horizontal under the action of the limit block 131 .

[0056] Specifically, the stopper 131 is also located at the position of the motor mounting plate 13 corresponding to the camera 4, which supports the baffle 10 on the one hand, and facilitates the baffle 10 to sink on the counterweight side under the action of gravity until it hits the stopper 131, and continues to remain horizontal under its own gravity, thereby preventing the baffle 10 from failing to return to the horizontal position and preventing the camera 4 and the light source 5 from being exposed to the outdoor environment for a long time.

[0057] Preferably, a torsion spring 132 is provided on one side of the motor mounting plate 13 close to the baffle 10, and a first leg 133 at one end of the torsion spring 132 is inserted into the motor mounting plate 13, and a second leg 134 at the other end is bent once in a direction perpendicular to the motor mounting plate 13 and then bent once in a direction parallel to the motor mounting plate 13, so that the baffle 10 is engaged with the second leg 134 when it rotates to a vertical state; when the servo motor is damaged, the baffle 10 can rotate back under the elastic force of the torsion spring 132 until it rotates to a horizontal state under the action of the counterweight block 102 and the limit block 131.

[0058] Specifically, Fig. 9As shown, the center of the torsion spring 132 is fixed to the motor mounting plate 13 by a screw, the first leg 133 is bent once at 90 degrees and then inserted into the motor mounting plate 13, the second leg 134 is bent twice at 90 degrees, and the second leg is bent twice to clamp the baffle 10. When the baffle 10 rotates to a vertical state, since the torque of the motor is greater than the resistance of the torsion spring 132, the spring is compressed and does not affect the rotation of the baffle 10 to a vertical position. When the motor fails to power on, the baffle 10 can be disengaged from the vertical position without the help of the motor torque, relying solely on the elastic force of the torsion spring 132, so that the baffle 10 returns to a horizontal position and continues to remain horizontal under its own gravity, effectively preventing the camera 4 and the light source 5 from being exposed to the outdoor environment for a long time, thereby protecting the camera 4 and the light source 5.

[0059] Furthermore, the camera 4 is fixed inside the shell 1 through a camera bracket 14, and the camera 4 is rotatably connected to the vertical surface of the camera bracket 14 through a pin shaft. A first arc groove 141 is also provided on the vertical surface of the camera bracket 14, and a bolt passes through the first arc groove 141 to fix the camera 4 on the vertical surface of the camera bracket 14, so that the pitch angle of the camera 4 can be adjusted by adjusting the position of the bolt in the first arc groove 141 during installation.

[0060] Specifically, Figure 7 As shown, the first arc groove 141 and the pin shaft cooperate with each other to achieve adjustment of the pitch angle of the camera 4.

[0061] Furthermore, the camera 4 is fixed inside the shell 1 through a camera bracket 14, and the horizontal plane of the camera bracket 14 is rotatably connected to the base plate 3 through a pin shaft. A second arc groove 142 is also provided on the horizontal plane of the camera bracket 14, and a bolt passes through the second arc groove 142 to fix the camera bracket 14 to the base plate 3. During installation, the horizontal angle of the camera 4 is adjusted by adjusting the position of the bolt in the second arc groove 142.

[0062] Specifically, Figure 6 As shown, the horizontal angle of the camera 4 is adjusted by the pin shaft and the second arc groove 142.

[0063] Application scenarios:

[0064] The probe box described in the present application is an adjustment mechanism and protection device for the tread system image acquisition sensor, which can realize the adjustment of the horizontal rotation angle and pitch angle of the camera to make the position angle of the camera in the best state for image shooting; through the rotation of the box body, the horizontal rotation angle of the light source can be adjusted; through the baffle and the automatic return design of the baffle, an automatic protection door device structure is formed to realize the protection of the camera lens, the surface glass of the light source, as well as dust-proof and other functions.

[0065] The probe box shell described in the present application is fixed to the base plate by 4 bolts; the motor mounting plate is fixed to the base plate by 2 bolts; the limit block is welded to the motor mounting plate to allow the baffle to rotate between horizontal and vertical; the servo motor is fixed to the motor mounting plate by 4 bolts; the servo motor controller is mounted on the base plate with two screws; a column with a hole is welded on the back of the baffle, the column is installed in conjunction with the motor shaft and fixed with a set screw to limit the relative rotation and axial displacement between the motor shaft and the baffle; a counterweight is welded on the camera side of the back of the baffle to ensure that the center of gravity is on the side of the motor shaft that is biased towards the camera when it is horizontal. When the equipment is on standby, the baffle is rotated to a horizontal position and can remain horizontal by its own gravity; the center of the torsion spring is screwed The nail is installed on the motor mounting plate, one end of the leg is bent once by 90 degrees and inserted into the hole of the motor mounting plate, and the other end of the leg is bent twice by 90 degrees. When the baffle rotates from the horizontal position to the vertical position, the spring is compressed because the torque of the motor is greater than the spring resistance, which does not affect the baffle turning to the vertical position. When the motor fails to power on, the baffle can be returned to the horizontal position without the help of the motor torque, relying only on the elastic force of the spring, and continue to remain horizontal under its own gravity; the camera bracket is fixed on the bottom plate by bolts, and the camera is rotated in the horizontal and vertical directions by the pins and arc holes on the vertical and horizontal planes; the camera is fixed on the camera bracket by 2 screws; the light source can be a laser or other light source, which is installed on the bottom plate by 2 bolts. The bottom plate is fixed to the probe box seat plate by 3 bolts, and the center hole of the bottom plate cooperates with the center pin of the center of the probe box seat plate to realize the horizontal rotation of the bottom plate. The seat plate is fixed to the fixing seat and the clamp by bolts, and a shock-absorbing block is installed between the fixing seat and the seat plate to reduce the influence of track vibration on the equipment and improve the detection accuracy. The clamp is fixed to the rail by two bolts.

[0066] The shape of the probe box shell described in the present application has a cut corner, and the irregular box shape solves the problem that the box cannot be rotated at a large angle due to the limitation of the railway sleeper spacing; the rotation center of the baffle is placed between the camera and the light, and the center of the light, the center of the camera, and the rotation center of the baffle are on the same horizontal line. When the equipment is on standby, the baffle rotates to a horizontal position and blocks the camera and the light at the same time. When the equipment is working, the baffle rotates to a vertical position and cancels the blocking of the camera and the light. This structure ensures that the blocking state of the light and the camera is consistent and realizes the protection of the camera and the light with one baffle; a counterweight block is welded behind the baffle close to the camera side to ensure that the center of gravity of the baffle is on the side of the motor shaft that is biased toward the camera when the baffle is horizontal. When the equipment is on standby, the baffle rotates to a horizontal position and can rely on its own gravity to maintain the horizontal state. There is no need to continuously power the motor during standby, thereby reducing the power consumption of the equipment; a torsion spring is installed on the motor mounting plate. When the baffle rotates to a vertical position, the baffle can return to the horizontal position without the help of the motor torque, relying only on the elastic force of the spring, and continue to maintain the horizontal state under its own gravity. It can effectively prevent the baffle from failing to return to the horizontal position when the motor fails to power on, thus preventing the camera and light from being exposed to the outdoor environment for a long time. Through the cooperation of the pin shaft and the arc groove of the camera bracket, the camera can be rotated horizontally and vertically, increasing the range of camera angle adjustment.

[0067] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the application. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical solution.

Claims

1. A probe box for a vehicle tread image acquisition and synthesis system, characterized in that: include: A fixed seat (6) is located between two adjacently arranged sleepers (7); A seat plate (2) fixed on the fixing seat (6); The housing (1) has a bottom plate (3) and is fixed to the seat plate (2) via the bottom plate (3); a camera (4) and a light source (5) are provided in the housing (1) for collecting vehicle tread images; A clamp (8) is fixed on the fixing seat (6) and is used for clamping on one side of the rail (15); A center pin (21) is provided at the center of the seat plate (2), and a center hole (31) is provided at the center of the bottom plate (3). The center pin (21) penetrates into the center hole (31), so that the probe box housing (1) rotates along the center pin (21) relative to the seat plate (2); The bottom plate (3) is also provided with a plurality of adjustment holes at its edge, and bolts are passed through the adjustment holes (32) to fix the bottom plate (3) on the seat plate (2); the adjustment holes (32) are arc-shaped, so that the rotation angle of the housing (1) can be adjusted by adjusting the position of the bolts in the adjustment holes (32) during installation; The housing (1) is provided with a first opening (111) corresponding to the camera (4), and is provided with a second opening (112) corresponding to the light source (5); the light source (5) and the camera (4) are located on the same horizontal line; a baffle (10) is rotatably mounted on the side wall of the housing (1); the baffle (10) is driven to rotate by a servo motor (11) disposed in the housing (1) to cover or open the first opening (111) and the second opening (112); The servo motor (11) is fixed to the side wall of the motor mounting plate (13), and the bottom of the motor mounting plate (13) is fixed to the bottom plate (3); a counterweight (102) is provided on a side of the baffle plate (10) relatively close to the motor mounting plate (13), so that the baffle plate (10) automatically rotates to a horizontal state under the action of gravity to achieve shielding of the first opening (111) and the second opening (112); A stop block (131) for supporting the baffle (10) is provided on one side of the motor mounting plate (13) close to the baffle (10); when the baffle (10) rotates to a horizontal state, it hits the stop block (131) and remains horizontal under the action of the stop block (131); A torsion spring (132) is provided on one side of the motor mounting plate (13) close to the baffle plate (10); a first leg (133) at one end of the torsion spring (132) is inserted into the motor mounting plate (13); a second leg (134) at the other end is bent once in a direction perpendicular to the motor mounting plate (13) and then bent once in a direction parallel to the motor mounting plate (13), so that the baffle plate (10) is engaged with the second leg (134) when it is rotated to a vertical state; When the servo motor is damaged, the baffle (10) can rotate back under the elastic force of the torsion spring (132) until it rotates into a horizontal state under the action of the counterweight block (102) and the limit block (131).

2. The probe box of the vehicle tread image acquisition and synthesis system according to claim 1, characterized in that: The shell (1) is a trapezoidal body, and two diagonals on the longest diagonal line are cut to form avoidance surfaces.

3. The probe box of the vehicle tread image acquisition and synthesis system according to claim 1, characterized in that: The seat plate (2) is provided with a plurality of strip holes (22), and bolts pass through the strip holes (22) to fix the seat plate (2) on the fixing seat (6); the extending direction of the strip holes (22) is perpendicular to the rails (15).

4. The probe box of the vehicle tread image acquisition and synthesis system according to claim 1, characterized in that: A shock absorbing block (9) is provided between the seat plate (2) and the fixing seat (6).

5. The probe box of the vehicle tread image acquisition and synthesis system according to claim 1, characterized in that: The camera (4) is fixed inside the housing (1) via a camera bracket (14); the camera (4) is rotatably connected to the vertical surface of the camera bracket (14) via a pin shaft; a first arc groove (141) is also provided on the vertical surface of the camera bracket (14); a bolt passes through the first arc groove (141) to fix the camera (4) on the vertical surface of the camera bracket (14), so that the position of the bolt in the first arc groove (141) can be adjusted during installation to adjust the pitch angle of the camera (4) for shooting.

6. The probe box of the vehicle tread image acquisition and synthesis system according to claim 1, characterized in that: The camera (4) is fixed inside the housing (1) via a camera bracket (14); the horizontal plane of the camera bracket (14) is rotatably connected to the bottom plate (3) via a pin shaft; a second arc groove (142) is also provided on the horizontal plane of the camera bracket (14); a bolt passes through the second arc groove (142) to fix the camera bracket (14) on the bottom plate (3); during installation, the horizontal angle of the camera (4) is adjusted by adjusting the position of the bolt in the second arc groove (142).

Images