Tobacco leaf curing barn video monitoring device and mounting structure thereof

Abstract

The application discloses a tobacco curing barn video monitoring device and an installation structure thereof, wherein the tobacco curing barn video monitoring device comprises a protection box and a detection camera installed in the protection box; and a mirror frame can be driven by a mirror frame driving device to firstly transport a dustproof lens to a lens cleaning mechanism for cleaning, and then cover the cleaned dustproof lens on a lens. By adding the dustproof lens on the lens of the detection camera, the lens of the detection camera can be protected from dust, and the dustproof lens can be cleaned by the cleaning mechanism when a large amount of dust is attached to the lens, so that the detection camera can continuously maintain the shooting definition. Meanwhile, the window baffle can be covered on the shooting window when the video monitoring is not needed, so as to reduce the cleaning frequency of the dustproof lens. Furthermore, the position and posture of the tobacco curing barn video monitoring device can be flexibly adjusted, so that the problem of the monitoring blind area can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of video surveillance processing equipment technology, specifically to a video surveillance device for tobacco curing barns and its installation structure. Background Technology

[0002] To ensure the quality of tobacco curing, real-time monitoring of the curing process in the curing barn is necessary. However, considering the high temperature, humidity, dust, and pungent odors inside the curing barn, workers cannot remain there for extended periods to monitor the curing process. Therefore, a series of patents, including those with publication numbers CN205864608U, CN204989003U, and CN105263006A, have incorporated video monitoring equipment into the tobacco curing barn.

[0003] However, the video monitoring equipment in the above solution still suffers from problems such as high humidity and dust in the tobacco curing barn, which cause a large amount of dust to adhere to the camera lens, making it impossible for the camera lens to capture a clear picture. Not only must the camera be cleaned before each curing, but even so, the camera lens often fails to capture a clear picture when it is most necessary to observe the tobacco leaves in the later stages of curing.

[0004] Furthermore, the existing video surveillance systems in tobacco curing barns all adopt a relatively traditional fixed installation structure, which can only change the shooting angle by adjusting the camera itself. However, due to the randomness of the tobacco hanging position, there are often blind spots in the monitoring.

[0005] Solving these problems is now a top priority. Summary of the Invention

[0006] In view of this, the present invention provides a video monitoring device for tobacco curing barns and its installation structure.

[0007] The technical solution is as follows:

[0008] The first aspect of this application relates to a video monitoring device for a tobacco curing barn, comprising a protective box and a detection camera installed inside the protective box. The protective box has a shooting window and a window baffle that can be opened or closed by a baffle driving device. The shooting direction of the lens of the detection camera is directly facing the shooting window. The protective box is also provided with a lens conveying mechanism and a lens cleaning mechanism. The lens conveying mechanism includes a lens frame driving device installed inside the protective box, a lens frame that can be rotated by the lens frame driving device, and at least two dustproof lenses that are circumferentially distributed and installed on the lens frame. The lens and the lens cleaning mechanism are circumferentially distributed around the lens frame. The lens frame can first convey the dustproof lenses to the lens cleaning mechanism for cleaning by the lens frame driving device, and then cover the cleaned dustproof lenses onto the lens.

[0009] By employing the above-mentioned video monitoring equipment for tobacco curing barns, dustproof lenses are added to the lenses of the inspection cameras, providing dust protection and ensuring image clarity. Furthermore, multiple dustproof lenses are provided, and when a large amount of dust accumulates, they are transported to a cleaning mechanism for thorough cleaning. This ensures the inspection cameras maintain continuous image clarity, enabling high-definition continuous monitoring of the entire tobacco curing process and thus guaranteeing the quality of the cured tobacco. Additionally, when video monitoring is not required, a window baffle can be closed over the shooting window, effectively reducing dust entering the protective chamber and decreasing the frequency of cleaning the dustproof lenses.

[0010] In some embodiments, the frame drive device is a motor;

[0011] The lens cleaning mechanism includes a cleaning tank fixedly mounted on a protective box via a cleaning tank mounting bracket and a guide cam fixedly mounted on the protective box via a cam mounting bracket. The opening of the cleaning tank faces the motor, and the guide cam is located between the motor and the opening of the cleaning tank. The outer edge of the guide cam near the cleaning tank is a cam-shaped surface, and the distance between the cam-shaped surface and the opening of the cleaning tank gradually increases from the middle position to both ends.

[0012] The frame includes a central mounting bracket that is synchronously rotatably mounted on the motor shaft of a motor. The central mounting bracket has at least two mounting arms that are evenly distributed circumferentially. Each mounting arm extends radially outward and has a lens mounting sleeve that can slide along the length of the mounting arm at its outer end. The dustproof lens is fixedly connected to the outer end of each lens mounting sleeve. Each mounting arm and the corresponding lens mounting sleeve are connected by an elastic element that gives the lens mounting sleeve an inward sliding tendency. A cam-fitting guide rod that can cooperate with the cam profile is fixedly connected to the side of the lens mounting sleeve near the guide cam.

[0013] When any lens mounting sleeve rotates to the guide cam position, its cam, in conjunction with the guide rod, is supported on the cam profile, thereby driving the lens mounting sleeve to slide along the corresponding mounting cantilever.

[0014] In some embodiments, two opposing sliding guide rods are fixedly connected to both sides of the mounting cantilever in the width direction, and sliding grooves adapted to the corresponding sliding guide rods are opened on both sides of the lens mounting sleeve in the width direction, with each sliding guide rod slidably embedded in the corresponding sliding groove.

[0015] In some embodiments, the elastic elements are all tension springs, and a first tension spring mounting rod is fixedly connected to the side of the lens mounting sleeve away from the guide cam. A second tension spring mounting rod is fixedly connected to the inner end of the mounting cantilever. The two ends of each tension spring are respectively hooked onto the corresponding first tension spring mounting rod and second tension spring mounting rod.

[0016] In some embodiments, the outer end of the lens is fitted with a dustproof sealing ring adapted to the dustproof lens, and any dustproof lens can cover the dustproof sealing ring. The outer circumferential edge of the outer end of the dustproof sealing ring is beveled to prevent jamming.

[0017] In some embodiments, two high-pressure cleaning nozzles are arranged opposite each other on the two sides of the cleaning tank. The outlets of the two high-pressure cleaning nozzles are slit-like structures extending along the length of the cleaning tank. The cleaning tank is connected to the inlet of a wastewater pump through a pipeline. The outlet of the wastewater pump is connected to a wastewater container through a pipeline. The high-pressure cleaning nozzles are all connected to the outlet of a clean water pump through a pipeline. The inlet of the clean water pump is connected to the outlet of a filter through a pipeline. The inlet of the filter is connected to a clean water container through a pipeline.

[0018] The lens cleaning mechanism also includes a drying assembly, which is distributed circumferentially around the frame along with the cleaning tank and the lens. The drying assembly includes two high-pressure jet nozzles disposed opposite each other on both sides of an adjacent dustproof lens and a blower for supplying high-pressure gas to the two high-pressure jet nozzles through a pipeline. The air outlets of the two high-pressure jet nozzles are both slit-shaped structures.

[0019] The frame can first transport the dustproof lens to the lens cleaning mechanism under the drive of the frame drive device. The water outlet sprays high-pressure water to both sides of the dustproof lens. Then, the dustproof lens is transported to two high-pressure air nozzles. The two air outlets blow high-pressure gas to both sides of the dustproof lens. Finally, the dustproof lens is covered on the lens.

[0020] In some embodiments, the protective case includes a rectangular back panel, a front guard panel fixedly mounted parallel to the outside of the back panel by a heightening bracket, and four side guard panels respectively vertically arranged around the back panel. The front guard panel and three of the side guard panels together form the shooting window. The baffle driving device is mounted on the back panel, and the window baffle is mounted on the back panel by a baffle bracket. The back panel, the front guard panel, the four side guard panels, and the window baffle in the closed state together form a cuboid structure.

[0021] In some embodiments, a rotatable turntable and a linear damper are installed at the center of the inner side of the back plate. Each side plate has a buffer guide rod extending towards the center of the turntable, which is fixedly connected to its inner side via a reinforcing structure. A sliding guide sleeve, adapted to the corresponding buffer guide rod, is fixedly installed on the inner side of the back plate. Each buffer guide rod is slidably inserted into its corresponding sliding guide sleeve. The inner end of each buffer guide rod is hinged to one end of a corresponding intermediate connecting rod, and the other end of each intermediate connecting rod is hinged to the turntable. The outer edge of the turntable has a damper-fitting cantilever extending radially outward. The extension direction of the piston rod of the linear damper is perpendicular to the extension direction of the damper-fitting cantilever, and the outer end of the piston rod of the linear damper abuts against the damper-fitting cantilever, thereby maintaining a gap between the inner sides of the four side plates and the outer edges of the back plate.

[0022] In some embodiments, at least two shock-absorbing pads are installed on the outer edges of the back plate.

[0023] The second aspect of this application relates to an installation structure for a video monitoring device for a tobacco curing barn, further comprising a posture adjustment mechanism. This posture adjustment mechanism includes a mounting plate, two posture adjustment guide rods fixedly mounted parallel to each other on the mounting plate, and a slide that simultaneously slides with the two posture adjustment guide rods. A protective box mounting bracket is fixedly mounted on the inner side of the back plate. The protective box mounting bracket has two parallel mounting shafts, one of which is hinged to the slide, and both ends of the other mounting shaft are hinged to one end of a corresponding support rod. The other ends of both support rods are hinged to corresponding link hinge seats fixedly mounted on the mounting plate. The mounting shafts are perpendicular to the posture adjustment guide rods. A posture adjustment drive device for driving the slide along the two posture adjustment guide rods is mounted on the mounting plate. The inner side of the mounting plate slides with the two parallel equipment mounting guide rods via several sliders. The equipment mounting guide rods are parallel to the mounting shafts, and both ends of the equipment mounting guide rods are fixedly mounted on the wall of the curing barn via guide rod mounting seats.

[0024] The installation structure of the above-mentioned tobacco curing barn video monitoring equipment not only possesses all the advantages of tobacco curing barn video monitoring equipment, but also allows for flexible and precise online adjustment of the equipment's posture through a posture adjustment mechanism. Furthermore, after the tobacco is hung, the position of the mounting plate on the equipment's mounting guide rod can be manually adjusted offline according to the tobacco hanging situation. This achieves adaptive adjustment of the position and posture of the tobacco curing barn video monitoring equipment, effectively avoiding the problem of blind spots in monitoring. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the interaction between the video monitoring equipment and the posture adjustment mechanism in a tobacco curing barn from one perspective.

[0026] Figure 2 This is a schematic diagram showing the cooperative relationship between the video monitoring equipment and the posture adjustment mechanism in a tobacco curing barn from another perspective.

[0027] Figure 3 A schematic diagram showing the interaction between the video monitoring equipment and the posture adjustment mechanism of the tobacco curing barn when the window baffle is in the closed position;

[0028] Figure 4 This diagram illustrates the interaction between the video monitoring equipment for the tobacco curing barn and the posture adjustment mechanism when the equipment is in one of its extreme positions.

[0029] Figure 5 A schematic diagram showing the installation of video monitoring equipment on the wall of a tobacco curing barn;

[0030] Figure 6 A schematic diagram of the video monitoring equipment for tobacco curing barns;

[0031] Figure 7 A schematic diagram showing the camera, lens delivery mechanism, and lens cleaning mechanism mounted on the back panel;

[0032] Figure 8 This is a schematic diagram of a lens cleaning mechanism;

[0033] Figure 9 This is a schematic diagram of the lens delivery mechanism;

[0034] Figure 10 This is a schematic diagram of the structure of the camera being tested. Detailed Implementation

[0035] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0036] Example 1:

[0037] like Figures 1-10 As shown, a video monitoring device for tobacco curing barn mainly includes a protective box 1 and a detection camera 2, a lens conveying mechanism 3, and a lens cleaning mechanism 4, all installed inside the protective box 1.

[0038] Please participate Figure 6 and Figure 7 The protective box 1 has a cuboid structure, mainly composed of a back panel 103, a front panel 106, and four side panels 107. The front panel 106 is arranged parallel to the front of the back panel 103, and the four side panels 107 are arranged in pairs opposite to each other on the outer perimeter between the front panel 106 and the back panel 103. Furthermore, all four side panels 107 are perpendicular to the back panel 103 and the front panel 106.

[0039] Specifically, the front guard plate 106 is fixedly mounted on the back plate 103 via a heightening bracket 105. The width of the front guard plate 106 is approximately the same as the width of the back plate 103, but its length is significantly shorter than that of the back plate 103. Therefore, the front guard plate 106 and three of the side guard plates 107 together form a shooting window 101, which allows the detection camera 2 to clearly capture images of the outside world. Simultaneously, a window baffle 108, which can be opened or closed over the shooting window 101, is mounted on the back plate 103 via a baffle bracket 109. Therefore, when not shooting, the window baffle 108 closes over the shooting window 101, effectively reducing dust accumulation on the camera lens and decreasing the cleaning frequency.

[0040] Because the smoke rack is very prone to impacting the protective box 1 during the loading and unloading of smoke, in this embodiment, the four side guards 107 are connected to the back plate 103 through a linkage buffer mechanism. The linkage buffer mechanism is used to make the four side guards 107 tend to move away from the back plate 103 synchronously, so that a gap is maintained between the four side guards 107 and the back plate 103. Therefore, when any side guard 107 is impacted by an external force, the four side guards 107 can move towards the back plate 103 synchronously under the support of the linkage buffer mechanism. With this design, not only can the impact force be absorbed by the linkage buffer mechanism, but also, because any one of the four side guards 107 is impacted, the four side guards 107 can move towards the back plate 103 synchronously under the support of the linkage buffer mechanism, thereby absorbing the impact force through the movement of the other side guards 107. This provides good impact resistance and thus provides excellent protection for the equipment inside the protective box.

[0041] Specifically, the linkage buffer mechanism includes a turntable 110 and a linear damper 112, both mounted on the rear side of the back plate 103. The turntable 110 is rotatably positioned at the center of the back plate 103, and a damper-cooperating cantilever 111 extending radially outward is provided on its outer edge. The extension direction of the piston rod of the linear damper 112 is perpendicular to the extension direction of the damper-cooperating cantilever 111, and the outer end of the piston rod of the linear damper 112 abuts against the damper-cooperating cantilever 111. The side guard plates 107... The inner sides of each side plate 107 are fixedly connected to a buffer guide rod 113 extending towards the center point of the turntable 110 via a reinforcing structure 118. A sliding guide sleeve 114, adapted to the corresponding buffer guide rod 113, is fixedly installed on the rear side of the back plate 103. Each buffer guide rod 113 is slidably inserted into its corresponding sliding guide sleeve 114. The inner end of each buffer guide rod 113 is hinged to one end of a corresponding intermediate connecting rod 115, and the other end of each intermediate connecting rod 115 is hinged to the turntable 110. Therefore, this linkage buffer mechanism can maintain a gap between the inner sides of the four side plates 107 and the outer edges of the back plate 103. When any one of the four side plates 107 is impacted, the four side plates 107 rotate the turntable 110 in linkage. This not only absorbs the impact force through the linear damper 112 but also through the movement of the other side plates 107, resulting in good impact resistance and thus providing better protection for the equipment inside the protective box 1.

[0042] Each of the reinforcing structures 118 includes a cross-shaped reinforcing rib base 118a, which is fixedly connected to the inner surface of the corresponding side guard plate 107. The outer end of each buffer guide rod 113 is fixedly connected to the center position of the corresponding reinforcing rib base 118a, and four reinforcing diagonal ribs 118b are provided between the outer end of each buffer guide rod 113 and the corresponding reinforcing rib base 118a. This not only ensures the reliability of the connection between the buffer guide rod 113 and the side guard plate 107, preventing relative rotation between them, but also strengthens the structure of the side guard plate 107, reducing the risk of deformation of the side guard plate 107 under impact.

[0043] Further, please see Figure 6 The front guard plate 106, window baffle 108 and the four side guard plates 107 are all detachably covered with buffer pads 117, so that when the side guard plate 107 is impacted, the buffer pads 117 provide the first level of buffering, and then the linkage buffer mechanism provides the second level of buffering, thereby greatly improving the impact resistance performance.

[0044] The buffer pad 117 mainly consists of a mounting plate 117b and a buffer layer 117a disposed on the mounting plate 117b. The mounting plate 117b can be connected to the front guard plate 106, window baffle 108, or side guard plate 107 via a dedicated connector 119, or directly to the front guard plate 106, window baffle 108, or side guard plate 107 via bolts, as long as the connection reliability is ensured. The buffer layer 117a can be a common cushioning material such as an airbag or felt, as long as it can withstand the baking environment. This structure facilitates the installation of the buffer pad 117, provides good shock absorption, is inexpensive, easy to replace and assemble, and reduces maintenance difficulty.

[0045] Further, please see Figure 7 At least two shock-absorbing pads 116 are installed on the outer edges of the back plate 103. The shock-absorbing pads 116 can not only limit the maximum displacement of the side guard plate 107, but also serve as the next stage of energy absorption structure after the displacement energy absorption of the side guard plate 107 and the energy absorption of the linear damper 112, thereby reducing the impact on the side guard plate 107 and the back plate 103, thus further improving the energy absorption performance of the protective box and providing better protection for the equipment inside the protective box.

[0046] Further, please see Figure 7 The heightening bracket 105 located on the shooting window 101 extends toward the shooting window 101 and forms at least two baffle limiting support bosses 105a that are adapted to the window baffle 108. When the window baffle 108 is in the closed state, the window baffle 108 is supported on each baffle limiting support boss 105a, which limits the extreme position of the window baffle 108 when closed, thereby ensuring the accuracy of the fit.

[0047] Please see Figures 1-10 The lens 201 of the detection camera 2 is positioned directly facing the shooting window 101. Specifically, the detection camera 2 is fixedly mounted on the back plate 103. The lens conveying mechanism 3 includes a frame drive device 301 fixedly mounted on the back plate 103, a frame that can rotate under the drive of the frame drive device 301, and at least two dustproof lenses 318 that are circumferentially distributed and mounted on the frame. The lens 201 and the lens cleaning mechanism 4 are circumferentially distributed around the frame. The frame can first convey the dustproof lenses 318 to the lens cleaning mechanism 4 for cleaning under the drive of the frame drive device 301, and then cover the cleaned dustproof lenses 318 onto the lens 201.

[0048] Therefore, by adding a dustproof lens 318 to the lens 201 of the inspection camera 2, the lens 201 of the inspection camera 2 can be protected from dust, ensuring the clarity of the image. At the same time, multiple dustproof lenses 318 are provided, and when a large amount of dust is attached, they can be transported to the cleaning mechanism 4 for cleaning, so that the inspection camera 2 can continuously maintain the clarity of the image and realize high-definition continuous monitoring of the entire tobacco curing process, thereby ensuring the curing quality of the tobacco. Furthermore, when video monitoring is not required, the window baffle 108 can be closed on the shooting window 101, thereby effectively reducing the amount of dust entering the protective box 1 and reducing the cleaning frequency of the dustproof lens 318.

[0049] In this embodiment, the frame drive device 301 preferably uses a servo motor to ensure the control accuracy of the frame. Meanwhile, the lens cleaning mechanism 4 includes a cleaning tank 402 fixedly mounted on the back plate 103 via a cleaning tank mounting bracket 401, and a guide cam 404 fixedly mounted on the back plate 103 via a cam mounting bracket 403. The opening of the cleaning tank 402 faces the servo motor, and the guide cam 404 is located between the servo motor and the opening of the cleaning tank 402. The outer edge of the guide cam 404 near the cleaning tank 402 is a cam profile 404a, and the distance between the cam profile 404a and the opening of the cleaning tank 402 gradually increases from the middle position towards both ends.

[0050] Correspondingly, the frame includes a central mounting bracket 302 that is synchronously mounted on the motor shaft of the motor. The central mounting bracket 302 has at least two mounting cantilever arms 302a that are evenly distributed circumferentially. Each mounting cantilever arm 302a extends radially outward and has a lens mounting sleeve 303 that can slide along the length of the mounting cantilever arm 302a at its outer end. A dustproof lens 318 is fixedly connected to the outer end of each lens mounting sleeve 303. Each mounting cantilever arm 302a is connected to the corresponding lens mounting sleeve 303 by an elastic element 304 that causes the lens mounting sleeve 303 to have an inward sliding tendency. A cam engagement guide rod 303a that can cooperate with the cam profile 404a is fixedly connected to the side of the lens mounting sleeve 303 near the guide cam 404.

[0051] Therefore, when any lens mounting sleeve 303 rotates to the guide cam 404 position, its cam engages with the guide rod 303a, which is supported on the cam profile 404a. Through the overall rotation of the frame, the lens mounting sleeve 303 slides towards the mounting cantilever 302a, thereby inserting the dustproof lens 318 into the groove of the cleaning tank 402 for cleaning. As the frame rotates further, after the cam engages with the guide rod 303a of the lens mounting sleeve 303 passes the highest point of the cam profile 404a, the dustproof lens 318 on the lens mounting sleeve 303 exits from the groove of the cleaning tank 402.

[0052] Please see Figure 9 Two opposing sliding guide rods 302b are fixedly connected to both sides of the mounting cantilever 302a in the width direction. Sliding grooves 303b that are adapted to the corresponding sliding guide rods 302b are opened on both sides of the lens mounting sleeve 303 in the width direction. Each sliding guide rod 302b is slidably embedded in the corresponding sliding groove 303b. Through the above structure, the stability and reliability of the sliding fit between the lens mounting sleeve 303 and the mounting cantilever 302a are improved.

[0053] Please see Figure 9 The elastic element 304 is preferably a tension spring. The side of the lens mounting sleeve 303 away from the guide cam 404 is fixedly connected to the first tension spring mounting rod 303c. The inner end of the mounting cantilever 302a is fixedly connected to the second tension spring mounting rod 302c. The two ends of each tension spring are respectively hooked onto the corresponding first tension spring mounting rod 303c and second tension spring mounting rod 302c. The above structure is easy to process and has good stability.

[0054] Please see Figure 10 The outer end of the lens 201 is fitted with a dustproof sealing ring 202 that is compatible with the dustproof lens 318. Any dustproof lens 318 can be covered by the dustproof sealing ring 202. That is, when the dustproof lens 318 is rotated to the position of the lens 201, the dustproof sealing ring 202 is usually made of rubber or silicone. Through its elastic deformation, the dustproof sealing ring 202 can seal the gap between the dustproof lens 318 and the lens 201, preventing dust from entering and contaminating the lens 201.

[0055] Furthermore, the outer circumferential edge of the dustproof sealing ring 202 is beveled with an anti-jamming slope 202a. By setting the anti-jamming slope 202a, the process of the dustproof lens 318 covering the dustproof sealing ring 202 is smoother, avoiding jamming problems.

[0056] Please see Figure 7 and Figure 8 Two high-pressure cleaning nozzles 405 are arranged opposite each other on the two sides of the cleaning tank 402. The outlets 405a of the two high-pressure cleaning nozzles 405 are slit-like structures extending along the length of the cleaning tank 402, which can achieve linear or surface high-pressure rinsing of the dustproof lens 318, ensuring the cleaning ability and cleaning efficiency of the dustproof lens 318.

[0057] The cleaning tank 402 is connected to the inlet of the wastewater pump 406 via a pipeline, and the outlet of the wastewater pump 406 is connected to the wastewater container 407 via a pipeline. This means that wastewater in the cleaning tank 402 can be discharged into the wastewater container 407 via the wastewater pump 406. Similarly, the high-pressure cleaning nozzles 405 are all connected to the outlet of the clean water pump 408 via a pipeline. The inlet of the clean water pump 408 is connected to the outlet of the filter 411 via a pipeline, and the inlet of the filter 411 is connected to the clean water container 409 via a pipeline. The clean water pump 408 delivers clean water from the clean water container 409 to the high-pressure cleaning nozzles 405.

[0058] Furthermore, the lens cleaning mechanism 4 in this embodiment also includes a drying assembly, which accordingly employs three dustproof lenses 318. The three dustproof lenses 318 are evenly distributed circumferentially on the lens frame, thus providing three workstations around the lens frame. The first workstation is where the dustproof lenses 318 are covered on the lens 201, the second workstation is where the dustproof lenses 318 are cleaned in the cleaning tank 402, and the third workstation is where the dustproof lenses 318 are dried by the drying assembly.

[0059] Specifically, the drying assembly, along with the cleaning tank 402 and the lens 201, is distributed circumferentially around the lens frame. The drying assembly includes two high-pressure jet nozzles 410 arranged opposite each other on both sides of an adjacent dustproof lens 318 along the thickness direction, and a blower for supplying high-pressure gas to the two high-pressure jet nozzles 410 through a pipeline. The two high-pressure jet nozzles 410 are mounted on the protective box 1 by jet nozzle brackets 412. At the same time, the air outlets 410a of the two high-pressure jet nozzles 410 are slit-like structures, thereby enabling efficient drying of the two surfaces of the dustproof lens 318.

[0060] Therefore, under the drive of the frame drive device 301, the dustproof lens 318 is first transported to the lens cleaning mechanism 4. The water outlet 405a sprays high-pressure water onto both sides of the dustproof lens 318. Then, the dustproof lens 318 is transported to the two high-pressure air nozzles 410. The two air outlets 410a blow high-pressure gas onto both sides of the dustproof lens 318. Finally, the dry and clean dustproof lens 318 is covered on the lens 201, ensuring the shooting effect of the detection camera 2.

[0061] Example 2:

[0062] Please see Figures 1-4An installation structure for a video monitoring device for a tobacco curing barn includes the video monitoring device for a tobacco curing barn as described in Embodiment 1 and a posture adjustment mechanism. The posture adjustment mechanism includes a mounting plate 501, two posture adjustment guide rods 502 fixedly mounted parallel to each other on the mounting plate 501, and a slide 503 that slides with both posture adjustment guide rods 502. A protective box mounting bracket 104 is fixedly mounted on the inner side of a back plate 103. The protective box mounting bracket 104 has two parallel mounting shafts 104a, one of which is hinged to the slide 503, and both ends of the other mounting shaft 104a are connected to corresponding support rods 503. One end of 04 is hinged, and the other ends of the two support rods 504 are both hinged to the corresponding rod hinge seats 505 fixedly installed on the mounting plate 501. The mounting shaft 104a is perpendicular to the attitude adjustment guide rod 502. The mounting plate 501 is equipped with an attitude adjustment drive device 506 for driving the slide 503 to slide along the two attitude adjustment guide rods 502. The inner side of the mounting plate 501 is slidably engaged with two parallel equipment mounting guide rods 508 through several sliders 507. The equipment mounting guide rods 508 are parallel to the mounting shaft 104a. Both ends of the equipment mounting guide rods 508 are fixedly installed on the wall of the baking oven 6 through guide rod mounting seats 509.

[0063] Therefore, the attitude of the tobacco curing barn video monitoring equipment can be flexibly and precisely adjusted online through the attitude adjustment mechanism. At the same time, after the tobacco is hung, the position of the mounting plate on the equipment mounting guide rod 508 can be manually adjusted offline according to the tobacco hanging situation. This realizes the adaptive adjustment of the position and attitude of the tobacco curing barn video monitoring equipment, thereby effectively avoiding the problem of monitoring blind spots.

[0064] Specifically, after the tobacco is hung, the position of the video monitoring equipment in the tobacco curing barn on the equipment installation guide rod 508 is manually adjusted to avoid monitoring blind spots as much as possible. Then the curing barn is closed and the curing process is started. The attitude of the video monitoring equipment in the tobacco curing barn can be adjusted online through the attitude adjustment drive device 506 to capture the complete video situation inside the curing barn.

[0065] Further, please see Figure 2 The mounting plate 501 is also equipped with two limit blocks 509, which can reliably limit the two extreme positions of the slide 503, thereby ensuring the stability and reliability of the operation of the tobacco curing barn video monitoring equipment.

[0066] Furthermore, a laser rangefinder sensor 510 is installed on the slide 503, and a marker 511 that works in conjunction with the laser rangefinder sensor 510 is set on the mounting plate 501. By measuring the distance, the attitude of the video monitoring equipment for the tobacco curing barn can be accurately monitored.

[0067] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A video monitoring device for tobacco curing barns, comprising a protective box and a detection camera installed inside the protective box, wherein the protective box has a shooting window and a window baffle that can be opened or closed by a baffle driving device, and the lens of the detection camera is directed towards the shooting window, characterized in that: The protective box is also equipped with a lens conveying mechanism and a lens cleaning mechanism. The lens conveying mechanism includes a frame drive device installed inside the protective box, a frame that can rotate under the drive of the frame drive device, and at least two dustproof lenses that are circumferentially distributed and installed on the frame. The lens and the lens cleaning mechanism are circumferentially distributed around the frame. The frame can first convey the dustproof lenses to the lens cleaning mechanism for cleaning under the drive of the frame drive device, and then cover the lens with the cleaned dustproof lenses. The outer end of the lens is fitted with a dustproof sealing ring that is compatible with the dustproof lens. Any dustproof lens can be covered on the dustproof sealing ring. The outer edge of the outer end of the dustproof sealing ring is beveled to prevent jamming. The protective box includes a rectangular back panel, a front guard plate fixedly mounted parallel to the outside of the back panel by a heightening bracket, and four side guard plates respectively vertically arranged around the back panel. The front guard plate and three of the side guard plates together form the shooting window. The baffle driving device is mounted on the back panel, and the window baffle is mounted on the back panel by a baffle bracket. The back panel, front guard plate, four side guard plates, and the window baffle in the closed state together form a cuboid structure. A rotatable turntable and a linear damper are installed at the center of the inner side of the back plate. Each side plate has a buffer guide rod extending towards the center of the turntable, which is fixedly connected to the inner side of the back plate through a reinforcing structure. Each buffer guide rod is slidably inserted into the corresponding sliding guide sleeve. The inner end of each buffer guide rod is hinged to one end of the corresponding intermediate connecting rod. The other end of each intermediate connecting rod is hinged to the turntable. The outer edge of the turntable has a damper cantilever extending radially outward. The extension direction of the piston rod of the linear damper is perpendicular to the extension direction of the damper cantilever, and the outer end of the piston rod of the linear damper abuts against the damper cantilever to maintain a gap between the inner sides of the four side plates and the outer edges of the back plate. The outer surfaces of the front guard plate, window baffle, and four side guard plates are all detachably covered with buffer pads; at least two shock-absorbing pads are installed on the outer edges of the back plate.

2. The video monitoring equipment for tobacco curing barns according to claim 1, characterized in that: The frame drive device is a motor; The lens cleaning mechanism includes a cleaning tank fixedly mounted on a protective box via a cleaning tank mounting bracket and a guide cam fixedly mounted on the protective box via a cam mounting bracket. The opening of the cleaning tank faces the motor, and the guide cam is located between the motor and the opening of the cleaning tank. The outer edge of the guide cam near the cleaning tank is a cam-shaped surface, and the distance between the cam-shaped surface and the opening of the cleaning tank gradually increases from the middle position to both ends. The frame includes a central mounting bracket that is synchronously rotatably mounted on the motor shaft of a motor. The central mounting bracket has at least two mounting arms that are evenly distributed circumferentially. Each mounting arm extends radially outward and has a lens mounting sleeve that can slide along the length of the mounting arm at its outer end. The dustproof lens is fixedly connected to the outer end of each lens mounting sleeve. Each mounting arm and the corresponding lens mounting sleeve are connected by an elastic element that gives the lens mounting sleeve an inward sliding tendency. A cam-fitting guide rod that can cooperate with the cam profile is fixedly connected to the side of the lens mounting sleeve near the guide cam. When any lens mounting sleeve rotates to the guide cam position, its cam, in conjunction with the guide rod, is supported on the cam profile, thereby driving the lens mounting sleeve to slide along the corresponding mounting cantilever.

3. The video monitoring equipment for tobacco curing barns according to claim 2, characterized in that: Two opposing sliding guide rods are fixedly connected to both sides of the mounting cantilever in the width direction. Sliding grooves adapted to the corresponding sliding guide rods are opened on both sides of the lens mounting sleeve in the width direction. Each sliding guide rod is slidably embedded into the corresponding sliding groove.

4. The video monitoring equipment for tobacco curing barns according to claim 2, characterized in that: All elastic elements are tension springs. Each lens mounting sleeve has a first tension spring mounting rod fixedly connected to the side away from the guide cam. Each mounting cantilever has a second tension spring mounting rod fixedly connected to its inner end. The two ends of each tension spring are respectively hooked onto the corresponding first tension spring mounting rod and second tension spring mounting rod.

5. The video monitoring equipment for tobacco curing barns according to claim 1, characterized in that: Two high-pressure cleaning nozzles are arranged opposite each other on the two sides of the cleaning tank. The outlets of the two high-pressure cleaning nozzles are slit-shaped structures extending along the length of the cleaning tank. The cleaning tank is connected to the inlet of the wastewater pump through a pipeline. The outlet of the wastewater pump is connected to the wastewater container through a pipeline. The high-pressure cleaning nozzles are connected to the outlet of the clean water pump through a pipeline. The inlet of the clean water pump is connected to the outlet of the filter through a pipeline. The inlet of the filter is connected to the clean water container through a pipeline. The lens cleaning mechanism also includes a drying assembly, which is distributed circumferentially around the lens frame along with the cleaning tank and the lens. The drying assembly includes two high-pressure jet nozzles arranged opposite each other on both sides of an adjacent dustproof lens along the thickness direction, and a blower for supplying high-pressure gas to the two high-pressure jet nozzles through a pipeline. The air outlets of the two high-pressure jet nozzles are both slit-shaped structures, and the two high-pressure jet nozzles are mounted on a protective box by a jet nozzle bracket. The frame can first transport the dustproof lens to the lens cleaning mechanism under the drive of the frame drive device. The water outlet sprays high-pressure water to both sides of the dustproof lens. Then, the dustproof lens is transported to two high-pressure air nozzles. The two air outlets blow high-pressure gas to both sides of the dustproof lens. Finally, the dustproof lens is covered on the lens.

6. An installation structure for a video monitoring device for a tobacco curing barn according to any one of claims 1-5, characterized in that: It also includes a posture adjustment mechanism, which comprises a mounting plate, two posture adjustment guide rods fixedly mounted parallel to each other on the mounting plate, and a slide that slides in cooperation with both posture adjustment guide rods. A protective box mounting frame is fixedly mounted on the inner side of the back plate. The protective box mounting frame has two parallel mounting shafts. One mounting shaft is hinged to the slide, and both ends of the other mounting shaft are hinged to one end of a corresponding support rod. The other ends of both support rods are hinged to corresponding link hinge seats fixedly mounted on the mounting plate. The mounting shaft is perpendicular to the posture adjustment guide rods. A posture adjustment drive device for driving the slide along the two posture adjustment guide rods is mounted on the mounting plate. The inner side of the mounting plate slides in cooperation with the two parallel equipment mounting guide rods through several sliders. The equipment mounting guide rods are parallel to the mounting shafts, and both ends of the equipment mounting guide rods are fixedly mounted on the wall of the baking oven through guide rod mounting seats.

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