A camera device for a mud discharge valve

Abstract

This utility model relates to a camera device for a mud discharge valve, which includes an adjustment component for driving a camera to move above a plurality of mud discharge valves. The adjustment component includes a transverse slide rail laid along a first direction X defined by the line connecting the plurality of mud discharge valves. A base is slidably connected to the transverse slide rail. A vertical slide rail is connected to the upper surface of the base along a second direction Y orthogonal to the transverse slide rail. A slider is slidably connected to the vertical slide rail. A support arm is detachably connected to the surface of the slider along a third direction Z orthogonal to both the transverse and vertical slide rails. A steering plate and a protective cover partially covering the steering plate are disposed at the end of the support arm away from the slider. The steering plate, which can rotate in parallel with the plane defined by the transverse and vertical slide rails, is connected to the camera so that the rotation of the steering plate can drive the camera to enter and exit the protection range of the protective cover.

Description

Technical Field

[0001] This utility model relates to the field of sludge discharge technology, and in particular to a camera device for sludge discharge valves. Background Technology

[0002] Sludge discharge valves are used at the bottom of sedimentation tanks in urban water plants and wastewater treatment plants to discharge sludge. The applicable medium is raw sludge-water, typically at a temperature of 50 degrees Celsius, and the operating depth is generally no more than 10 meters. However, current sludge discharge valves have difficulty detecting the degree of blockage themselves, making it difficult to identify blockage problems in a timely manner. Furthermore, the sludge discharge port is usually located in a confined space containing toxic and harmful gases, and a large amount of sludge-water splashes during the discharge process, posing significant safety hazards for manual inspection.

[0003] Although existing sludge discharge control systems possess remote control capabilities, and some inventions have utilized sensors to detect sludge discharge, in practical applications, these sensors are susceptible to factors such as sludge contamination, communication signal interference, and mechanical failures, leading to frequent remote control malfunctions and an inability to promptly address sludge blockage issues. This not only increases the potential threat posed by water quality problems during production but also requires significant human resources for on-site monitoring and night shifts, thereby increasing the workload of permanent staff and the company's operating expenses. Given the difficulties in detecting the degree of blockage in sludge discharge valves, as well as the safety hazards and high costs of manual inspections, there is an urgent need to design an innovative solution to replace manual monitoring.

[0004] CN214306376U proposes a monitoring camera for a sludge removal room, including a fixed plate. A support plate is fixedly connected to the right side of the fixed plate. A first bearing is fixedly embedded on the upper surface of the support plate. A support rod is provided above the support plate. The bottom end of the support rod passes through the first bearing and extends to the bottom of the support plate. A first gear is fixedly connected to the bottom end of the support rod.

[0005] The patented design incorporates an air pump, which, in conjunction with an air hose and a jet nozzle, blows air onto the camera lens to keep it clean. However, the air pump can only effectively remove loosely attached dust particles. If water droplets appear on the lens, the air pump struggles to remove them effectively. Even if increasing the airflow temporarily blows away the droplets, water stains may remain on the lens, affecting image quality and potentially delaying the detection of a clogged mud valve. Therefore, this camera is difficult to use effectively in humid environments where the mud valve is located.

[0006] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0007] To address the shortcomings of existing technologies, this application proposes a camera device for sludge discharge valves, comprising an adjustment assembly for driving a camera to move above several sludge discharge valves. The adjustment assembly includes a support arm that extends above the sludge discharge valves and a slider connected to the support arm to adjust its height relative to the sludge discharge valves. A steering plate and a protective cover that partially covers the steering plate are disposed at the end of the support arm away from the slider. A camera is connected to the surface of the steering plate, which is capable of rotating within its own plane. The camera can follow the rotation of the steering plate into or out of the protective cover and contact the cleaning block laid inside the protective cover during rotation.

[0008] This invention's camera device features a rotating plate design, allowing the camera to rotate within a plane and adapt to different shooting angles, thus improving the coverage and effectiveness of surveillance. Furthermore, the combination of the rotating plate and the protective cover provides effective protection for the camera. The rotation of the plate controls the camera's movement within the protective cover, preventing direct impact from external environmental factors such as water droplets and dust, thereby extending the camera's lifespan and reliability. Additionally, a cleaning block within the protective cover allows the camera to contact the cleaning block during rotation, achieving dynamic cleaning. This design effectively addresses water droplets and stains that easily appear on the camera surface in humid environments, ensuring excellent cleaning results.

[0009] According to a preferred embodiment, the adjustment assembly includes a transverse slide rail laid along a first direction X defined by a plurality of mud discharge valves. A base is slidably connected to the transverse slide rail. A vertical slide rail is connected to the upper surface of the base along a second direction Y orthogonal to the transverse slide rail. A slider is slidably connected to the vertical slide rail. A support arm is detachably connected to the surface of the slider along a third direction Z orthogonal to both the transverse and vertical slide rails. A steering plate located at the end of the support arm is capable of rotating parallel to the plane defined by the transverse and vertical slide rails. The camera device of this invention achieves flexible positioning of the camera in three-dimensional space through the adjustment assembly. The combination of the transverse slide rail, vertical slide rail, and slider allows the camera to move arbitrarily in a plane parallel to the mud discharge valves, thereby adapting to mud discharge valves with different arrangements and spacings, and achieving precise positioning and monitoring of different mud discharge valves.

[0010] According to a preferred embodiment, the protective cover is designed as a semi-enclosed structure to cover the top of the steering plate, with its opening facing the water surface where the sludge discharge valve is located. Cleaning blocks of varying thicknesses are detachably laid inside the protective cover, with the cleaning block at the top of the cover being thicker than the surrounding blocks. Because of the semi-enclosed structure, the camera can observe the sludge discharge valve through the reserved opening in the protective cover during operation by rotating the steering plate. When the sludge discharge valve is not in operation, the rotation of the steering plate allows the camera to enter the protective range of the cover, effectively preventing environmental factors from affecting the camera's performance. This design ensures both the camera's observation capability during operation and provides necessary protection, improving the reliability of the equipment. Furthermore, this design utilizes cleaning blocks of varying thicknesses; the change in contact force between the camera and the cleaning blocks as the camera rotates achieves a dynamic cleaning effect. The thinner cleaning blocks at the edge of the protective housing perform initial cleaning, while the thicker cleaning blocks gradually increase the cleaning force during rotation, ensuring that water mist on the lens is removed evenly and effectively, maintaining a clear field of view; finally, when the camera rotates to the top inside the protective housing, the thickest cleaning block provides additional protection, effectively preventing the humid environment from interfering with the camera, improving the camera's reliability and lifespan.

[0011] According to a preferred embodiment, the protective cover is connected to the support arm via a hinged joint on its edge. The protective cover can rotate around the hinged joint to move closer to or away from the steering plate, allowing it to be fastened onto or removed from the steering plate. This design allows for flexible adjustment of the protective cover's position to suit different usage scenarios. When the protective cover is fastened onto the steering plate, it effectively protects the camera on the steering plate from damage caused by external environmental factors such as dust and moisture, thereby extending the equipment's lifespan. Simultaneously, when the protective cover is away from the steering plate, operators can easily replace the cleaning block inside that has reached a certain usage time, further enhancing the protection of the camera.

[0012] According to a preferred embodiment, a rotatable end bearing is disposed at the end of the support arm away from the slider, and a threaded sleeve is disposed along the third direction Z on the surface of the steering plate opposite to the camera. The threaded sleeve passes through the inner ring of the end bearing so that the steering plate is rotatably held at the end of the support arm. The threaded sleeve passing through the inner ring of the end bearing provides stable support for the steering plate at the end of the support arm. The threaded connection provides a reliable fixing method, which not only allows the steering plate to rotate flexibly within a certain range to facilitate adjustment of the camera's viewing angle, but also prevents the steering plate from loosening or shifting during use.

[0013] According to a preferred embodiment, a servo motor is mounted on the surface of the slider. The output shaft of the servo motor passes through the support arm and is rotatably connected to a connecting shaft extending along the hollow cavity of the support arm. The end of the connecting shaft away from the output shaft is rotatably connected to a threaded sleeve. This design directly drives the connecting shaft with a servo motor, making the entire power transmission structure compact and reducing the need for complex transmission mechanisms such as belts or chains that might be required in traditional drive methods. This not only saves space but also simplifies maintenance and upkeep. The use of a servo motor allows for precise angle adjustment of the camera attached to the steering plate to meet the observation needs of the mud discharge valve's operating status.

[0014] According to a preferred embodiment, a vertical slide rail is slidably connected to a limiting block for limiting the height of a slider. The limiting block is fixed in a predetermined position by fasteners disposed on its side, and a shock-absorbing pad is disposed on the end face of the limiting block that abuts against the slider. The design of the limiting block effectively limits the height of the slider, ensuring that the slider slides within a predetermined range. This prevents the slider from exceeding its design range, ensuring the safety and reliability of the device. The limiting block is also fixed in a predetermined position by fasteners disposed on its side, allowing operators to pre-adjust the position of the limiting block based on experience to achieve different slider height limits. This flexibility allows the camera device of this invention to adapt to different monitoring needs of mud discharge valves. Furthermore, the shock-absorbing pads on the limiting block effectively absorb the impact force generated when the slider reaches the limited height, reducing vibration and noise, protecting the slider and limiting block from damage, and extending the service life of the equipment.

[0015] According to a preferred embodiment, the adjustment assembly includes a diagonal brace, one end of which is connected to the side of the support arm, and the other end of which is connected to the surface of the slider. By forming a triangular support structure, the diagonal brace can improve the slider's anti-overturning ability during use and prevent structural deformation or tilting caused by external forces.

[0016] According to a preferred embodiment, a light source is suspended from the side of the support arm, with the light source illuminating the water surface where the sludge discharge valve is located. By placing a light source above the sludge discharge valve, visibility in the area can be improved at night or in low-light conditions. This helps the camera acquire accurate and clear images of the sludge discharge valve's operating status, allowing for timely detection of potential problems.

[0017] According to a preferred embodiment, a counterweight is provided at the bottom of the vertical slide rail to prevent it from tipping over. The counterweight is connected to the upper surface of the base in a manner that surrounds the bottom of the vertical slide rail. The presence of the counterweight can effectively suppress the vibration and swaying of the slider on the vertical slide rail during operation, improving the smoothness of operation. In addition, by adjusting the center of gravity of the vertical slide rail, the counterweight helps to reduce the risk of the slide rail tipping over. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the camera device installed above the mud discharge valve according to this utility model;

[0019] Figure 2 This is a simplified overall structural diagram of the camera device of this utility model from one perspective;

[0020] Figure 3 This is a simplified overall structural diagram of the camera device of this utility model from another perspective;

[0021] Figure 4 This is a perspective view of the internal structure of the support arm of this utility model from one angle;

[0022] Figure 5 This is a perspective view of the internal structure of the support arm of this utility model from another angle (without the steering plate installed);

[0023] Figure 6 This is a perspective view of the internal structure of the support arm of this utility model from another angle (with the steering plate already installed);

[0024] Figure 7 This is a cross-sectional view of the support arm of this utility model;

[0025] Figure 8 This is a schematic diagram of the structure between the camera of this utility model and the cleaning block inside the protective cover when the camera rotates.

[0026] List of reference numerals

[0027] 100: Mud discharge valve; 200: Camera; 300: Adjustment component; 310: Horizontal slide rail; 320: Base; 321: Vertical slide rail; 322: Slider; 323: Limit block; 324: Fastener; 325: Shock absorber; 330: Support arm; 331: Steering plate; 332: End bearing; 333: Threaded sleeve; 334: Connecting shaft; 335: Middle bearing; 336: Diagonal brace; 340: Protective cover; 341: Cleaning block; 350: Servo motor; 351: Output shaft; 360: Light source. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] Location definition: combined with Figure 1 The direction defined by the line connecting several mud discharge valves 100 is the first direction X; the second direction Y is orthogonal to the first direction X and extends along the thickness direction of the base 320; the third direction Z is perpendicular to both the first direction X and the second direction Y.

[0030] This utility model discloses a camera device for sludge discharge valves, designed to replace manual monitoring of sludge discharge valves 100 at the bottom of sedimentation tanks in urban water plants and sewage treatment plants. The device is designed to move along a predetermined track to capture the operating status of the sludge discharge valves 100 at various key points above the sedimentation tank. With this camera device, personnel do not need to be physically present; instead, they can remotely assess the operating status of the sludge discharge valves 100 through high-definition images acquired by the camera 200, including whether there are blockages or other operational abnormalities, thereby ensuring the stable operation of the sludge discharge valves 100.

[0031] Preferably, such as Figure 1 As shown, the camera device includes an adjustment assembly 300 installed on the bank of the sedimentation tank, designed to move and position the camera 200. The adjustment assembly 300 includes a transverse slide rail 310 laid along a first direction X. The transverse slide rail 310 is elongated and can be made of corrosion-resistant metal or engineering plastic to suit the sedimentation tank environment. A base 320 is slidably connected to the transverse slide rail 310. Its shape can be a rectangular platform, allowing the configured camera 200 to move freely along the slide rail. The movement of the base 320 is driven by a motor, which can be fixed to one end of the slide rail to ensure stability and reliable operation. A vertical slide rail 321 extends from the upper surface of the base 320 along a second direction Y. The vertical slide rail 321 is elongated, and a slider 322 is slidably connected along its length. The slider 322 is a square component that can slide up and down along the length of the vertical slide rail 321, thereby adjusting the height of the camera 200 connected to the slider 322 via a support arm 330 extending along a third direction Z. By linearly moving the slider 322 on the vertical slide rail 321, the adjustment component 300 can adjust the vertical height of the camera 200 relative to the sludge discharge valve 100 in the sedimentation tank, thereby achieving the optimal shooting distance. The structural design of the support arm 330 allows the camera 200 to extend horizontally, ensuring that the camera 200 can cross the edge of the sedimentation tank so that the sludge discharge valve 100 is completely within the effective field of view of the camera 200.

[0032] Preferably, such as Figures 2-7As shown, the support arm 330 is a hollow rod, detachably connected to the slider 322 via a plug-in connection. The end of the support arm 330 away from the slider 322 is connected to a steering plate 331 for mounting the camera 200 via an end bearing 332. The steering plate 331 is designed as a planar plate orthogonal to the third direction Z. Its front side has a snap-fit ​​component for connecting the camera 200, while its rear side has a threaded sleeve 333 at its geometric center. The outer diameter of the threaded sleeve 333 matches the inner diameter of the inner ring of the end bearing 332, allowing it to be inserted into the support arm 330 via the end bearing 332. The outer ring of the end bearing 332 is fixedly connected to the end of the support arm 330. Through the cooperation of the threaded sleeve 333 and the end bearing 332, the steering plate 331 can be rotatably and securely fixed at the end of the support arm 330. This design allows the steering plate 331 to rotate 360 ​​degrees at the end of the support arm 330 in a plane orthogonal to the third direction Z to adjust the shooting angle of the camera 200 while maintaining stability.

[0033] Preferably, such as Figures 4-7 As shown, a connecting shaft 334 extending in the third direction Z is disposed within the hollow cavity of the support arm 330. The length of the connecting shaft 334 corresponds to the length of the support arm 330. One end of the connecting shaft 334 is provided with an external thread, the size of which matches the internal thread of the threaded sleeve 333 on the steering plate 331, so as to connect with the threaded sleeve 333 by threaded engagement. A gear is fixedly connected to the other end of the connecting shaft 334. When the gear rotates under the drive of an external force, the connecting shaft 334 will also rotate along its axis in the same direction and to the same extent. Multiple coaxially arranged central bearings 335 are disposed within the hollow cavity of the support arm 330. The central bearings 335 are used for the connecting shaft 334 to pass through, thereby ensuring that the connecting shaft 334 can be stably and rotatably held inside the support arm 330.

[0034] Preferably, such as Figure 4 , Figure 7 As shown, a servo motor 350 is mounted on the surface of the slider 322, and a through hole is provided on the surface of the support arm 330 extending from the slider 322 at the location of the servo motor 350, so that the output shaft 351 of the servo motor 350 can enter the interior of the support arm 330 through the through hole. The gear on the output shaft 351 meshes with the gear at the end of the connecting shaft 334 inside the support arm 330. With this design, when the servo motor 350 is started, its output shaft 351 will drive the connecting shaft 334 to rotate, thereby causing the steering plate 331 connected to the connecting shaft 334 to rotate in the same direction, realizing the adjustment of the camera 200.

[0035] One purpose of the steering plate 331 is to prevent reflections or glare from appearing on the surface of the sedimentation tank. By rotating the steering plate 331 to a suitable angle, the shooting range of the connected camera 200 can avoid the areas of reflections or glare. At the same time, by moving the base 320 on the transverse slide rail 310, the adjusted shooting range can accurately cover the sludge discharge area of ​​the sludge discharge valve 100, thereby avoiding the impact of reflections or glare on image clarity.

[0036] Preferably, such as Figure 2 , Figure 3 As shown, a hinge is fitted to one side of the support arm 330 near the steering plate 331. This hinge enables a rotatable connection between the support arm 330 and the protective cover 340. The protective cover 340 features a hemispherical shell design, allowing it to flexibly cover or move away from the steering plate 331 via the hinge's rotation mechanism. When the protective cover 340 covers the steering plate 331, its opening faces the water surface where the mud discharge valve 100 is located, thus providing protection for the camera 200. The rotation of the steering plate 331 allows the camera 200, connected to its front, to move out of the protective cover 340's protection area during operation, or into the protective cover 340's protection area when not in operation. This design allows the camera 200 to operate without obstruction by the protective cover 340, ensuring a clear field of view, while being covered by the protective cover 340 when not in operation to prevent damage from environmental factors such as dust and water mist.

[0037] Preferably, the protective cover 340 is internally designed with removable cleaning blocks 341, and these cleaning blocks 341 have different thicknesses, with the cleaning block 341 at the top of the protective cover 340 being thicker than the surrounding cleaning blocks 341. This design allows the camera 200 to gradually increase the contact force with the cleaning blocks 341 as it rotates into the coverage area of ​​the protective cover 340. Specifically, the main function of the cleaning blocks 341 is to remove water mist from the lens surface of the rotating camera 200 by contacting it; they can be silicone blocks wrapped with flexible fabrics such as fiber cloth or non-woven fabric. Due to the different thicknesses of the cleaning blocks 341, the contact force between the camera 200 and the cleaning blocks 341 changes during rotation, thereby improving the cleaning effect. The thinner cleaning blocks 341 at the edges of the protective cover 340 initially contact the lens with a smaller contact force, providing an initial cleaning effect; as the camera 200 rotates, the contacting cleaning blocks 341 gradually become thicker, and the contact force increases accordingly. This change helps to evenly and effectively remove water vapor from the lens of camera 200, ensuring a clear field of view for camera 200. Finally, camera 200 can be rotated to the inner top position of protective cover 340, where the cleaning block 341 is at its thickest, providing additional protection for camera 200 to minimize interference from humid environments when camera 200 is in standby mode.

[0038] Preferably, in order to reduce the number of components, such as Figure 8 As shown, the multiple cleaning blocks 341 inside the protective cover 340 can be replaced by a single sponge with a rounded surface structure that fits snugly against the inner wall. The sponge is designed to be thicker at the top of the protective cover 340 than at the edges, creating a smooth transition on the surface. Due to the smooth, rounded surface structure, without sharp edges or unevenness, this sponge can fit snugly against the lens of the camera 200, ensuring thorough cleaning. This fit not only reduces blind spots during cleaning but also allows the sponge to effectively reach every tiny corner of the lens, thoroughly removing dust, water stains, and other impurities. Furthermore, the smooth, rounded surface structure helps reduce potential scratches or damage to the lens during cleaning, further improving the cleaning effect and the protection of the lens. After a period of use, the protective cover 340 can be opened via hinges installed on its edges, facilitating manual replacement of the internal cleaning blocks 341 and ensuring continued cleaning effectiveness.

[0039] Preferably, such as Figure 2 , Figure 3 As shown, the vertical slide rail 321 is equipped with a sliding limit block 323 to adjust and limit the maximum height of the slider 322. The limit block 323 is preferably designed as a regular cubic shape, with fasteners 324 consisting of bolts and nuts on its sides. This design ensures that the limit block 323 can be stably fixed at a designated position on the slide rail. The bottom surface of the limit block 323, i.e., the surface in contact with the slider 322, is equipped with a shock-absorbing pad 325. This shock-absorbing pad 325 is made of a wear-resistant and flexible material, and its shape matches the bottom surface of the limit block 323. It is designed to absorb impact force when the slider 322 contacts the limit block 323, reduce friction, protect the slider 322 and the limit block 323 from damage, and maintain the stability of the contact surface to ensure that the sliding performance of the slider 322 is not affected. Based on their experience, staff can adjust the limit block 323 to a preset position according to the water level where the mud discharge valve 100 is located, thereby defining the allowable movement range of the slider 322 on the vertical slide rail 321 and ensuring that the height adjustment of the camera 200 meets the monitoring requirements.

[0040] Preferably, such as Figures 2-8As shown, the adjustment assembly 300 includes a diagonal brace 336 designed to enhance the stability of the support arm 330. A dedicated interface is provided on the side of the support arm 330 for connecting to one end of the diagonal brace 336. To optimize force distribution and structural balance, this interface is positioned at the midpoint of the support arm 330's length. This layout helps the diagonal brace 336 evenly distribute the force on the support arm 330. A connector matching the other end of the diagonal brace 336 is provided on the slider 322, located below the connection point between the support arm 330 and the slider 322. With this configuration, the diagonal brace 336 can connect to both the support arm 330 and the slider 322 simultaneously, forming a stable triangular structure. When the camera 200 is operating, the stability of the support arm 330 is ensured by the triangular structure formed by the diagonal brace 336, the support arm 330, and the slider 322, thus preventing a decrease in image clarity due to the swaying of the support arm 330. This design ensures that the camera 200 maintains image stability and clarity under various working conditions, improving the reliability of the video recording effect.

[0041] Preferably, such as Figure 1 , Figure 3 As shown, a dedicated light source 360 ​​is suspended from the side of the support arm 330. This light source 360 ​​is designed to be bolted to the side of the support arm 330. The housing of the light source 360 ​​is made of corrosion-resistant aluminum alloy with an anodized surface to enhance its service life in humid environments. The light source 360 ​​uses a high-efficiency LED array, featuring long lifespan and low energy consumption. Its illumination direction is set directly towards the water surface where the sludge discharge valve 100 is located, ensuring sufficient illumination of the area around the sludge discharge valve 100 under low-light conditions, thus facilitating the camera 200 to acquire information about the operation of the sludge discharge valve 100.

[0042] Preferably, such as Figure 2 , Figure 3 As shown, the bottom of the vertical slide rail 321 is designed with a counterweight to enhance the stability of the overall structure and prevent tipping. The counterweight is made of high-density cast iron and has a ring-shaped structure that surrounds and tightly fits the bottom of the vertical slide rail 321. Its inner diameter matches the outer diameter of the vertical slide rail 321, ensuring a secure connection. The counterweight is bolted to the upper surface of the base 320, which is made of steel and has good load-bearing capacity. Rubber washers are provided at the connection between the counterweight and the base 320 to reduce the impact of vibration on the structure. Through this configuration, the counterweight effectively reduces the risk of tipping of the vertical slide rail 321 due to external forces during operation, ensuring the safe and stable operation of the equipment under various working conditions.

[0043] It should be noted that the above specific embodiments are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A camera device for sludge discharge valves, comprising an adjustment assembly (300) for moving a camera (200) above a plurality of sludge discharge valves (100), characterized in that, The adjustment assembly (300) includes a support arm (330) that extends above the sludge discharge valve (100) and a slider (322) connected to the support arm (330) to adjust its height relative to the sludge discharge valve (100). A steering plate (331) and a protective cover (340) that partially covers the steering plate (331) are disposed at one end of the support arm (330) away from the slider (322). The camera (200) is connected to the surface of the steering plate (331) which is capable of rotating in its own plane. The camera (200) can follow the rotation of the steering plate (331) into or out of the protection range of the protective cover (340) and contact the cleaning block (341) laid in the protective cover (340) during rotation. The protective cover (340) is designed as a semi-enclosed structure to cover the steering plate (331) above, with its opening facing the water surface where the mud discharge valve (100) is located; The cleaning blocks (341) that are detachably laid inside the protective cover (340) have different thicknesses. The cleaning block (341) located at the top inside the protective cover (340) has a greater thickness than the cleaning blocks (341) around it. The cleaning block (341) is a silicone block wrapped with fiber cloth and non-woven fabric.

2. The camera device according to claim 1, characterized in that, The adjusting assembly (300) includes a transverse slide rail (310) laid along a first direction X defined by the lines connecting the plurality of the sludge discharge valves (100). A base (320) is slidably connected to the transverse slide rail (310). A vertical slide rail (321) is connected to the upper surface of the base (320) along a second direction Y orthogonal to the transverse slide rail (310). A slider (322) is slidably connected to the vertical slide rail (321). A support arm (330) is detachably connected to the surface of the slider (322) along a third direction Z orthogonal to both the transverse slide rail (310) and the vertical slide rail (321). The steering plate (331) located at the end of the support arm (330) is capable of rotating in parallel with the plane defined by the transverse slide rail (310) and the vertical slide rail (321).

3. The camera device according to claim 1, characterized in that, The protective cover (340) is connected to the support arm (330) by a hinge configured on its edge. The protective cover (340) is rotatable about the hinge to move closer to or away from the steering plate (331) so that the protective cover (340) can be engaged with or disengaged from the steering plate (331).

4. The camera device according to claim 1, characterized in that, The end of the support arm (330) away from the slider (322) is provided with a rotatable end bearing (332), and the steering plate (331) is provided with a threaded sleeve (333) along the third direction Z on the surface away from the camera (200). The threaded sleeve (333) passes through the inner ring of the end bearing (332) so that the steering plate (331) is rotatably held at the end of the support arm (330).

5. The camera device according to claim 4, characterized in that, The surface of the slider (322) is provided with a servo motor (350), the output shaft (351) of the servo motor (350) passes through the support arm (330) and is rotatably connected to a connecting shaft (334) extending along the hollow cavity of the support arm (330), and the end of the connecting shaft (334) away from the output shaft (351) is rotatably connected to the threaded sleeve (333).

6. The camera device according to claim 2, characterized in that, The vertical slide rail (321) is slidably connected to a limiting block (323) for limiting the height of the slider (322), wherein the limiting block (323) is fixed in a predetermined position by means of fasteners (324) arranged on its side, and the end face of the limiting block (323) that abuts against the slider (322) is provided with a shock-absorbing pad (325).

7. The camera device according to claim 1, characterized in that, The adjustment assembly (300) includes a diagonal brace (336), one end of which is connected to the side of the support arm (330), and the other end is connected to the surface of the slider (322).

8. The camera device according to claim 1, characterized in that, A light source (360) is suspended on the side of the support arm (330), and the illumination direction of the light source (360) is towards the water surface where the mud discharge valve (100) is located.

9. The camera device according to claim 2, characterized in that, The bottom of the vertical slide rail (321) is provided with a counterweight to prevent it from tipping over. The counterweight is connected to the upper surface of the base (320) in such a way that it surrounds the bottom of the vertical slide rail (321).

Images