Pipeline monitoring device, pipeline monitoring system and pipeline monitoring method

Abstract

The invention relates to the technical field of oil smoke monitoring, in particular to a pipeline monitoring device, a pipeline monitoring system and a pipeline monitoring method. The pipeline monitoring device comprises a rack mechanism and a shooting mechanism, the rack mechanism is provided with a protective sleeve and a sealing cover, at least part of the protective sleeve is arranged in the pipeline in an extending mode, the shooting mechanism comprises a camera assembly capable of being controlled to stretch out or retract into the protective sleeve, and the sealing cover ascends and descends along with the camera assembly to achieve opening and closing sealing of the lower end of the protective sleeve. According to the device, the integrated sealing structure is combined with the liftable shooting mechanism, so that the problems of easy pollution, frequent maintenance and poor sealing reliability of a monitoring element in the prior art are effectively solved, and the device has the effects of simple structure, reliable sealing and convenient maintenance.

Description

Technical Field

[0001] This application relates to the field of oil fume monitoring technology, and in particular to a pipeline monitoring device, pipeline monitoring system and pipeline monitoring method. Background Technology

[0002] With the development of oil fume monitoring technology, various detection devices for oil accumulation inside pipelines have emerged. These devices typically employ visual inspection or sensor monitoring methods to achieve remote monitoring and early warning of the internal condition of pipelines.

[0003] In related technologies, common methods for duct monitoring include installing cameras or sensors directly inside the fume duct or taking pictures through an observation window. For example, patent CN214794349U discloses a multifunctional catering fume monitoring device, which maintains the visibility of the monitoring element by setting up a nozzle to clean the surface of the monitor and equipping it with a cleaning tank and hose for regular cleaning. In addition, some monitoring devices adopt a sealed structure to try to prevent fume intrusion, or install a detachable detection module on the outside of the duct for easy maintenance.

[0004] However, the aforementioned monitoring methods and related devices still have the following problems: First, the monitoring elements are directly exposed to the oil fume environment, and even with the addition of a sealing structure, the seal is often incomplete, causing the oil fume to gradually cover the lens or sensor, affecting the monitoring accuracy and requiring frequent cleaning and maintenance; Second, the cleaning system itself has a complex structure, and the cleaning fluid may leak or remain in the pipes, which may increase the risk of oil accumulation or cause secondary pollution; Third, the devices are inconvenient to disassemble and assemble, and repeated disassembly can easily lead to deformation of the mounting holes and failure of the seal, affecting the stability and sealing of the overall structure; Fourth, most monitoring devices lack an efficient data transmission mechanism and cannot wirelessly transmit monitoring data to mobile terminals in real time, limiting their convenience and timeliness in practical applications.

[0005] Therefore, it is necessary to provide a fume duct monitoring device to solve at least one of the aforementioned problems existing in the prior art. Summary of the Invention

[0006] Therefore, it is necessary to provide a pipeline monitoring device with a simple structure to solve at least one of the above-mentioned problems existing in the prior art.

[0007] A pipeline monitoring device, comprising:

[0008] A frame mechanism, including a protective sleeve and a sealing cap, wherein at least a portion of the protective sleeve extends into the pipe;

[0009] A shooting mechanism is mounted on the frame mechanism, the shooting mechanism including a camera assembly disposed within the protective sleeve, the camera assembly being configured to extend controllably out of the protective sleeve or retract into the protective sleeve;

[0010] The sealing cap is directly or indirectly connected to the lower end of the camera assembly and can move up and down with the camera assembly to seal the lower end of the protective sleeve when the camera assembly retracts into the protective sleeve.

[0011] In one embodiment, the rack mechanism further includes:

[0012] A base plate is installed on the pipe;

[0013] A bracket is disposed on the side of the base plate opposite to the pipe, and the upper end of the protective sleeve is connected to the bracket.

[0014] In one embodiment, the rack mechanism further includes:

[0015] A base plate sealing gasket is disposed between the base plate and the pipe;

[0016] A bracket sealing gasket is disposed between the base plate and the bracket;

[0017] An upper sealing gasket is disposed between the bracket and the upper end of the protective sleeve;

[0018] A lower sealing gasket is disposed between the sealing cover and the protective sleeve.

[0019] In one embodiment, the rack mechanism further includes:

[0020] A fixing component is disposed outside the pipe, and the fixing component is connected to the protective sleeve;

[0021] The shooting mechanism further includes a motor assembly and an electric slip ring. The motor assembly includes a motor mounted on the fixed assembly and a lead screw driven by the motor. The camera assembly is mounted on the lead screw, and the sealing cover is connected to the lead screw. The electric slip ring includes an outer ring fixed to the fixed assembly and an inner ring fixed to the lead screw and moving synchronously with the lead screw. The camera assembly is electrically connected to the inner ring, and the outer ring is configured to be electrically connected to the control system. The motor is configured to drive the lead screw to simultaneously perform rotational motion around its own axis and lifting motion along its own axis, thereby driving the camera assembly to perform synchronous lifting and rotational motion.

[0022] In one embodiment, the fixing component includes a fixing bracket and a fixing plate, the fixing bracket being connected to the upper end of the protective sleeve, and the fixing plate being disposed above the fixing bracket;

[0023] The motor is mounted on the fixed plate, and the fixed plate has a through hole for the lead screw to pass through.

[0024] In one embodiment, the shooting mechanism further includes:

[0025] A guide shaft is mounted on the fixing assembly;

[0026] The upper limit bracket is rotatably connected to the lead screw and is slidably mounted on the guide shaft, which restricts the rotation of the upper limit bracket relative to the fixed assembly.

[0027] The lower limit bracket is fixed to the upper end of the lead screw;

[0028] The sensing plate is mounted on the upper limit bracket;

[0029] The sensing shaft is mounted on the lower limit bracket;

[0030] The sensing component is disposed on the fixed component;

[0031] The controller is electrically connected to the sensing component and the motor component. The controller is configured to determine that the camera component extends out of the protective sleeve when the lead screw rotates in the forward direction until the sensing component senses the sensing shaft, and to determine that the camera component retracts into the protective sleeve when the lead screw rotates in the reverse direction until the sensing component senses the sensing plate.

[0032] In one embodiment, the shooting mechanism further includes:

[0033] A flange bearing is provided at the upper end of the lead screw. The inner ring of the flange bearing is connected to the lead screw, and the outer ring of the flange bearing is connected to the upper limit bracket. The flange bearing is used to limit the axial movement of the upper limit bracket relative to the lead screw.

[0034] And / or,

[0035] The sensing component includes a photoelectric switch, which is disposed on the fixed component and configured to sense the position of the sensing shaft and the sensing plate.

[0036] In one embodiment, the shooting mechanism further includes a floating connector, through which the sealing cap is connected to the lead screw, the floating connector being configured to allow relative sway between the sealing cap and the lead screw.

[0037] A pipeline monitoring system, the pipeline monitoring system including the pipeline monitoring device.

[0038] A pipeline monitoring method, using the aforementioned pipeline monitoring device, includes the following steps:

[0039] S01. Activate the pipeline monitoring device, so that the imaging mechanism extends into the pipeline to take pictures;

[0040] S02. After the shooting mechanism completes the shooting, control the shooting mechanism to rise and completely retract into the protective sleeve, and the sealing cover completes the sealing of the lower end of the protective sleeve, shutting down the pipeline monitoring device, so that the shooting mechanism inside the protective sleeve and the internal space of the pipeline are sealed and isolated from each other.

[0041] The aforementioned pipeline monitoring device, through a frame mechanism including a protective sleeve and a sealing cap, constructs a sealed protective channel that runs through the fume duct, providing a stable and protected operating environment for the imaging mechanism. This frame mechanism, with its through-hole design of the protective sleeve and the closure of the sealing cap, effectively isolates the imaging mechanism inside the protective sleeve from direct contamination by fumes, significantly reducing oil adhesion and the need for cleaning and maintenance. Simultaneously, the imaging mechanism can extend from the protective sleeve and into the duct for imaging when needed, and retract and be sealed within the protective sleeve by the sealing cap when not in operation, further ensuring the cleanliness and service life of the imaging mechanism. This overcomes the technical problems of existing technologies, such as easy contamination of monitoring elements, frequent maintenance, poor sealing reliability, and inconvenient disassembly and assembly. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a pipeline monitoring device provided in an embodiment of this application.

[0043] Figure 2 This is a schematic diagram of the structure of a pipeline monitoring device (without protective cover) provided in an embodiment of this application.

[0044] Figure 3 This is a schematic diagram of a frame mechanism installed on a pipe according to an embodiment of this application.

[0045] Figure 4 This is a cross-sectional view of a frame mechanism provided in an embodiment of this application.

[0046] Figure 5 This is a top view of a frame mechanism provided in an embodiment of this application.

[0047] Figure 6 A schematic diagram of the shooting mechanism from one perspective is provided for one embodiment of this application.

[0048] Figure 7 This application provides a schematic diagram of the shooting mechanism from another perspective, representing an embodiment of the present application.

[0049] Figure 8 A schematic diagram illustrating the working principle of a shooting mechanism provided in an embodiment of this application.

[0050] Figure 9This is a schematic diagram of the pipeline monitoring device provided in an embodiment of this application when it is not in operation.

[0051] Figure 10 This is a schematic diagram of the structure of a pipeline monitoring device provided in an embodiment of this application during operation.

[0052] Figure 11 A schematic diagram of the shooting mechanism in operation according to an embodiment of this application (sensor plate hidden).

[0053] Figure 12 This is a schematic diagram of the shooting mechanism in operation according to an embodiment of this application.

[0054] Figure 13 This is a magnified view of point A when the shooting mechanism is not in operation, according to an embodiment of this application.

[0055] Figure 14 This is a flowchart of a pipeline monitoring method provided in an embodiment of this application.

[0056] Figure 15 This is a schematic diagram of the shooting perspective of a pipeline monitoring device provided in an embodiment of this application.

[0057] The reference numerals in the detailed embodiments are as follows:

[0058] 100. Pipeline monitoring device; 110. Frame mechanism; 120. Imaging mechanism; 130. Protective cover; 200. Pipeline;

[0059] 111. Base plate; 112. Bracket; 113. Protective sleeve; 114. Sealing cap; 115. Fixing assembly; 116. Base plate sealing gasket; 117. Bracket sealing gasket; 118. Upper sealing gasket; 119. Lower sealing gasket;

[0060] 1111, First fastener; 1121, Second fastener;

[0061] 1151. Fixed bracket; 1152. Fixed plate; 1153. Through hole;

[0062] 121. Motor assembly; 1211. Motor; 1212. Lead screw;

[0063] 122. Slip ring; 123. Camera assembly; 124. Floating connector; 125. Guide shaft; 126. Upper limit bracket; 127. Side bearing; 128. Lower limit bracket; 129. Sensing assembly;

[0064] 1231. Supporting structure; 1232. Light source; 1233. Camera;

[0065] 1261, Induction plate; 1281, Induction shaft; 12611, Horizontal section;

[0066] 1291. Fixed structure; 1292. Photoelectric switch. Detailed Implementation

[0067] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0068] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0069] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0073] See Figures 1-3 , Figures 1-3 A schematic diagram of a pipeline monitoring device according to an embodiment of this application is shown. The pipeline monitoring device 100 provided in this application includes a frame mechanism 110 and a camera mechanism 120. The frame mechanism 110 includes a protective sleeve 113 and a sealing cap 114, with at least a portion of the protective sleeve 113 extending into the pipeline 200. The camera mechanism 120 is mounted on the frame mechanism 110 and includes a camera assembly 123 disposed within the protective sleeve 113. The camera assembly 123 is configured to extend out of or retract into the protective sleeve 113 in a controllable manner. The sealing cap 114 is disposed at the lower end of the camera mechanism 120 and can rise and fall with the camera assembly 123 to seal the lower end of the protective sleeve 113 when the camera assembly 123 retracts into the protective sleeve 113. When the sealing cap 114 seals the lower end of the protective sleeve 113, the camera assembly 123 within the protective sleeve 113 is mutually sealed and isolated from the internal space of the pipeline 200, thereby providing a pollution-proof sealing protection.

[0074] It should be noted that the pipeline 200 serves as the environmental foundation for the installation and operation of this device, and it only provides the necessary installation interface and monitoring space for the pipeline monitoring device 100 of this application.

[0075] In this application, the protective sleeve 113 penetrates the pipe 200 and extends into its interior, forming a sealed channel relatively isolated from the external oil fume environment. This not only provides guidance and protection for the camera assembly 123 entering and exiting the pipe 200, but more importantly, effectively isolates the intrusion of oil fumes into the pipe 200, reducing the risk of oil contamination to the imaging mechanism 120. The design of the sealing cover 114, which rises and falls synchronously with the camera assembly 123, ensures that during non-monitoring periods, when the camera assembly 123 retracts into the protective sleeve 113, the sealing cover 114 can promptly and reliably close the opening at the lower end of the protective sleeve 113, forming a continuous sealing barrier together with the protective sleeve 113. This dynamic sealing method, while ensuring monitoring functionality, minimizes the contact time between the internal structure of the device and harsh environments such as high-concentration oil fumes and humid oil stains, thereby extending the service life of the device, reducing the frequency and difficulty of cleaning and maintenance, and improving the long-term reliability and stability of monitoring data.

[0076] Continue reading Figure 3 According to some embodiments of this application, the frame mechanism 110 further includes a base plate 111, which is disposed on the pipe 200. By fixing the base plate 111 of the frame mechanism 110 to the pipe 200, the stability of the entire device in complex oil fume environments is ensured. Optionally, the base plate 111 is disposed on the pipe 200 by a first fastener 1111. Preferably, the first fastener 1111 is a self-tapping screw.

[0077] In one embodiment, the frame mechanism 110 further includes a bracket 112 disposed on the side of the base plate 111 opposite to the pipe 200, and the upper end of the protective sleeve 113 is connected to the bracket 112. Optionally, the bracket 112 is detachably mounted on the base plate 111 by a second fastener 1121. Preferably, the second fastener 1121 is an internal hexagon head screw. Optionally, the upper end of the protective sleeve 113 is also connected to the bracket 112 by a fastener (such as a screw).

[0078] When the device requires maintenance, repair, or replacement, operators do not need to disassemble the base plate 111 fixed to the pipe 200. They only need to loosen the second fastener 1121 connecting the bracket 112 and the base plate 111 to remove the module, including the bracket 112, protective sleeve 113, sealing cover 114, and the entire imaging mechanism 120, from the base plate 111. This design effectively avoids problems such as wear or deformation of the mounting holes of the pipe 200 caused by repeated disassembly and reassembly of the base plate 111, greatly protecting the integrity of the pipe 200 structure and the sealing reliability of the initial installation. The base plate 111 can be permanently fixed to the pipe 200 as a permanent mounting base to ensure the stability of the installation reference. At the same time, the modular design of the bracket 112 also significantly simplifies the maintenance operation process, shortens the maintenance time, reduces the long-term maintenance cost, and makes the daily maintenance of the device more efficient and reliable.

[0079] Combination Figure 1 According to some embodiments of this application, the pipeline monitoring device 100 further includes a protective cover 130. The protective cover 130 is disposed outside the frame mechanism 110 and covers the imaging mechanism 120. The protective cover 130 is typically made of metal or engineering plastic, has good sealing performance and protection level, and can effectively isolate external dust, moisture, oil and other contaminants from corroding the imaging mechanism 120. It can also prevent accidental contact or mechanical damage, further improving the long-term operational reliability and safety of the device in harsh industrial environments.

[0080] Combination Figure 4 , Figure 4 A cross-sectional view of a rack mechanism provided in one embodiment of this application is shown. According to some embodiments of this application, the rack mechanism 110 further includes a base plate sealing gasket 116, a bracket sealing gasket 117, an upper sealing gasket 118, and a lower sealing gasket 119. The base plate sealing gasket 116 is disposed between the base plate 111 and the pipe 200; the bracket sealing gasket 117 is disposed between the base plate 111 and the bracket 112; the upper sealing gasket 118 is disposed between the bracket 112 and the upper end of the protective sleeve 113; and the lower sealing gasket 119 is disposed between the sealing cover 114 and the protective sleeve 113.

[0081] These four sealing gaskets together form a multi-level, all-around sealing and protection system. The base plate sealing gasket 116, as the first line of defense, is located between the base plate 111 and the pipe 200. It effectively eliminates unevenness on the installation surface, blocking the path of oil fumes leaking outwards through installation gaps at the source, and also preventing the intrusion of external pollutants. The bracket sealing gasket 117 is located at the connection interface between the base plate 111 and the bracket 112. It not only ensures the sealing between the two rigid connecting parts, but more importantly, it remains intact when only the bracket 112 is disassembled for maintenance, avoiding the hassle of replacing the seal every time. The upper sealing gasket 118 is located between the bracket 112 and the upper end of the protective sleeve 113, serving as a static sealing point and ensuring the sealing reliability of the opening at the upper end of the protective sleeve 113. The lower sealing gasket 119 is located between the lower end of the liftable sealing cover 114 and the protective sleeve 113. Its unique feature is that it needs to undergo repeated compression and separation as the sealing cover 114 rises and falls, thus requiring excellent elastic recovery and wear resistance. These four sealing gaskets work together, playing crucial roles at both static and dynamic connection points, jointly ensuring effective isolation between the internal and external environments of the protective sleeve 113. This allows the internal imaging mechanism 120 to operate in a protected clean environment, greatly improving the long-term sealing stability and environmental tolerance of the device.

[0082] See Figure 5 , Figure 5 This is a top view of a frame mechanism provided in one embodiment of this application. During installation and operation, the base plate sealing gasket 116 is positioned between the base plate 111 and the pipe 200, directly contacting the outer wall of the pipe 200. The protective sleeve 113 is fixedly installed and extends into the pipe 200; its position remains fixed during device operation and will not move with the lifting and lowering movement of the shooting mechanism 120, thus providing a stable and protected guide channel for the entry and exit of the camera assembly 123. Conversely, the sealing cover 114 and its cooperating lower sealing gasket 119 are connected and positioned at the lower end of the shooting mechanism 120, and will move up and down together with the camera assembly 123.

[0083] Continue reading Figure 3 and Figure 4 The frame mechanism 110 also includes a fixing component 115, which is disposed outside the pipe 200 and connected to the protective sleeve 113. Figure 6 and Figure 7As shown, in some embodiments, the imaging mechanism 120 further includes a motor assembly 121 and an electric slip ring 122. The motor assembly 121 includes a motor 1211 mounted on a fixing assembly 115 and a lead screw 1212 driven by the motor 1211. The camera assembly 123 is mounted on the lead screw 1212, and a sealing cover 114 is connected to the lead screw 1212. The electric slip ring 122 includes an outer ring fixed to the fixing assembly 115 and an inner ring fixed to the lead screw 1212 and moving synchronously with the lead screw 1212. The camera assembly 123 is electrically connected to the inner ring, and the outer ring is configured to be electrically connected to the control system. The motor 1211 is configured to drive the lead screw 1212 to simultaneously perform rotational motion around its own axis and lifting motion along its own axis, thereby driving the camera assembly 123 to perform synchronous lifting and rotational motion. The motor assembly 121 can be a conventional screw jack, which can drive the lead screw 1212 to simultaneously perform rotational motion around its own axis and lifting motion along its own axis.

[0084] It should be noted that the outer ring of the slip ring 122 is fixed to the stationary fixed plate 1152, remaining completely stationary; while the inner ring is fixedly connected to the rotating lead screw 1212 and rotates and moves up and down with the lead screw 1212. The slip ring 122 internally contains a conductive ring and a brush structure. After the power and signal lines are connected to the stationary outer ring from the external control system, they maintain sliding contact with the conductive ring of the inner ring through the brush inside the outer ring. When the inner ring rotates and moves up and down with the lead screw 1212, the brush always maintains contact with the conductive ring, thereby achieving continuous transmission of power and signals from the stationary outer ring to the moving inner ring. Finally, the power and signals are transmitted to the camera assembly 123 through the wires connected to the inner ring, ensuring a stable power supply and reliable data transmission during complex movements. This solves the problem of cable entanglement when the camera assembly 123 rotates and ensures continuous and stable power and signal connections during lifting and lowering movements, thus guaranteeing reliable operation of the device under complex movement conditions.

[0085] According to some embodiments of this application, the fixing component 115 includes a fixing bracket 1151 and a fixing plate 1152. The fixing bracket 1151 is connected to the upper end of the protective sleeve 113 and plays a supporting role. The fixing plate 1152 is disposed above the fixing bracket 1151, providing a stable and flat mounting platform for the motor 1211. In some embodiments, the fixing plate 1152 is disposed above the fixing bracket 1151.

[0086] Combination Figure 7In one embodiment, the motor 1211 is mounted on a fixed plate 1152, which has a through hole 1153. The through hole 1153 provides a through channel for the lead screw 1212, ensuring sufficient freedom of rotation for the lead screw 1212. Driven by the motor 1211, the lead screw 1212 can rotate and move up and down, thereby driving the connected slip ring 122 and camera assembly 123 to move synchronously. This allows the camera assembly 123 to extend out of the protective sleeve 113 to enter the pipe 200 to perform shooting tasks, or to retract into the protective sleeve 113 for protection after shooting. As an image acquisition unit, the camera assembly 123 can realize multi-angle, all-round visual monitoring of oil accumulation inside the pipe 200.

[0087] Continue reading Figures 6-8 In some embodiments, the camera assembly 123 includes a support structure 1231, a light source 1232, and / or a camera 1233. The support structure 1231 is mounted on the lead screw 1212; the light source 1232 and / or the camera 1233 are mounted on the support structure 1231, which provides a stable mounting platform for the camera 1233 and / or the light source 1232. Preferably, the light source 1232 is a high-brightness LED to provide sufficient illumination during monitoring, ensuring clear images can be acquired even in dim environments inside the pipe 200. In some embodiments, the camera 1233 is an industrial-grade camera module with appropriate resolution and depth of field, used to acquire real-time images or video data inside the pipe 200. By integrating the light source 1232 and / or the camera 1233 onto the same support structure 1231 and moving synchronously with the lead screw 1212, a high degree of coordination between the illumination angle and the shooting angle is ensured, and all-round, blind-spot-free monitoring of the inside of the pipe 200 is achieved, improving image acquisition quality and monitoring reliability.

[0088] According to some embodiments of this application, the imaging mechanism 120 further includes a guide shaft 125, an upper limit bracket 126, a lower limit bracket 128, a sensing plate 1261, a sensing shaft 1281, a sensing component 129, and a controller. The guide shaft 125 is vertically mounted on the fixed assembly 115. The upper limit bracket 126 is rotatably connected to the lead screw 1212 and is slidably mounted on the guide shaft 125, which restricts the rotation of the upper limit bracket 126 relative to the fixed assembly 115. The lower limit bracket 128 is fixed to the upper end of the lead screw 1212 and rotates and moves synchronously with the lead screw 1212. The sensing plate 1261 is mounted on the upper limit bracket 126, and the sensing shaft 1281 is mounted on the lower limit bracket 128. The sensing component 129 is mounted on the fixed assembly 115 and is used to sense the position of the sensing plate 1261 or the sensing shaft 1281. The controller is electrically connected to the sensing component 129 and the motor component 121. The controller is configured to determine that the camera component 123 extends out of the protective sleeve 113 when the lead screw 1212 rotates in the forward direction until the sensing component 129 senses the sensing shaft 1281, and to determine that the camera component 123 retracts into the protective sleeve 113 when the lead screw 1212 rotates in the reverse direction until the sensing component 129 senses the sensing plate 1261.

[0089] Continue reading Figure 7 According to some embodiments of this application, the imaging mechanism 120 further includes a retaining bearing 127, which is disposed at the upper end of the lead screw 1212. The inner ring of the retaining bearing 127 is connected to the lead screw 1212, and the outer ring of the retaining bearing 127 is connected to the upper limit bracket 126. The retaining bearing 127 is used to limit the axial movement of the upper limit bracket 126 relative to the lead screw 1212. This structural design allows the retaining bearing 127 to effectively limit the axial movement of the upper limit bracket 126 relative to the lead screw 1212, thereby significantly reducing the axial force borne by the motor assembly 121 and preventing the motor 1211 from being damaged due to excessive axial load. At the same time, the retaining bearing 127 ensures the degree of freedom of the lead screw 1212 in rotational motion, realizing the decoupling of axial limiting and rotational motion, which not only ensures transmission accuracy but also improves the stability and reliability of the device operation.

[0090] See Figure 6 According to some embodiments of this application, the sensing component 129 includes a photoelectric switch 1292, which is disposed on the fixing component 115 and configured to sense the positions of the sensing shaft 1281 and the sensing plate 1261. In one embodiment, the sensing component 129 further includes a fixing structure 1291 disposed on the fixing plate 1152. Optionally, the photoelectric switch 1292 is disposed on the fixing structure 1291. In one embodiment, the fixing structure 1291 includes a vertical plate with mounting holes, and the photoelectric switch 1292 is fastened to the surface of the vertical plate by bolts passing through the mounting holes.

[0091] See Figure 7 and Figures 11-12 The photoelectric switch 1292 has a slot-shaped opening that faces the sensing shaft 1281 and the sensing plate 1261. The working principle of the photoelectric switch is as follows: When the lead screw 1212 drives the lower limit bracket 128 and the sensing shaft 1281 to descend, the sensing shaft 1281 enters the slot-shaped opening of the photoelectric switch 1292 and blocks the light path within the slot. The photoelectric switch 1292 then outputs a signal, thereby determining that the camera assembly 123 has fully extended to the shooting position. (To clearly demonstrate the structure where the sensing shaft 1281 enters the slot-shaped opening of the photoelectric switch 1292...) Figure 11 (The sensor plate 1261 is omitted). When the lead screw 1212 rises, it causes the upper limit bracket 126 and the sensor plate 1261 to rise. The sensor plate 1261 enters the slot opening of the photoelectric switch 1292 and triggers a signal. Based on this, it is determined that the sealing cover 114 has been completely closed and the lower end of the protective sleeve 113 has been pressed.

[0092] See Figure 13 Because the photoelectric switch 1292 is installed at an angle and the lower end of the sensing plate 1261 adopts an L-shaped structure, this combination design ensures that the sensing shaft 1281 and the sensing plate 1261 will not interfere with each other during the detection process.

[0093] Furthermore, in this embodiment, the photoelectric switch 1292 is installed at an angle so that the slot opening of the photoelectric switch 1292 allows the sensing shaft 1281 and the sensing plate 1261 to pass through without interfering with other parts of the photoelectric switch 1292. Specifically, the plane of the slot opening of the photoelectric switch 1292 forms an angle of 15°-75° with the vertical direction. In actual operation, the sensing shaft 1281 performs both lifting and rotating movements, while the sensing plate 1261 only performs lifting movements. The angled installation of the photoelectric switch 1292, with the plane of the slot opening forming an angle of 15°-75° with the vertical direction, allows the sensing plate 1261 to pass smoothly through the slot opening in the vertical direction without interference from other parts of the photoelectric switch 1292; simultaneously, it ensures that when the sensing shaft 1281 rotates through the slot opening, other parts of the photoelectric switch 1292 will not interfere with its movement.

[0094] Continue reading Figure 13When the lead screw 1212 rises, driving the upper limit bracket 126 and the sensing plate 1261 to rise, the L-shaped structure design at the lower end of the sensing plate 1261 ensures that it does not interfere with the sensing shaft 1281 on the movement path during the rising process. The horizontal part 12611 at its end then enters the slot-shaped opening of the photoelectric switch 1292 and blocks the internal light path. The photoelectric switch 1292 then outputs a switching signal, which the system uses as the basis for determining whether the sealing cover 114 is closed in place.

[0095] Explanatory, Reference Figure 13 The sensing plate 1261 includes a connecting rod extending in a direction parallel to the lead screw 1212 and a horizontally extending portion 12611 connected to the lower end of the connecting rod. During the entire lifting process, only the horizontal portion 12611 at the lower end of the sensing plate 1261 will trigger the photoelectric switch 1292; the connecting rod will not trigger the photoelectric switch 1292.

[0096] It should be noted that the L-shaped structure at the lower end of the sensing plate 1261 is a preferred embodiment. Its purpose is to ensure that the sensing plate 1261 and the sensing shaft 1281 do not interfere with each other during the lifting and lowering movement, thereby ensuring that the photoelectric switch 1292 can accurately and reliably identify the two extreme positions of the camera assembly 123 extending and the sealing cover 114 closing. However, those skilled in the art should understand that the specific shape of the sensing plate 1261 is not limited to an L-shape. As long as its structural design can meet the following basic requirements, other shapes can be used to achieve the same function: first, to avoid any form of mechanical interference between the sensing plate 1261 and the sensing shaft 1281 on the movement path; second, to ensure that a specific part of the sensing plate 1261 can accurately enter the sensing area of ​​the photoelectric switch 1292 and trigger the corresponding signal; and third, to ensure that the structure itself has sufficient rigidity and stability. For example, the sensing plate 1261 can also adopt different configurations such as U-shape, oblique bending, or segmentation. As long as it can achieve the core functions of motion avoidance and signal triggering, it falls within the protection scope of this application.

[0097] Further, refer to Figure 7 , Figure 8 , Figure 12 and Figure 13 The horizontal portion 12611 of the sensing plate 1261 is located below the end of the sensing shaft 1281 (i.e., the lowest position of the sensing shaft 1281) in the axial direction of the lead screw 1212. The two are kept at a sufficient distance from each other in the axial direction of the lead screw 1212. The connecting rod of the sensing plate 1261 avoids the sensing area of ​​the photoelectric switch 1292. Thus, the sensing plate 1261 and the sensing shaft 1281 can trigger the sensing area of ​​the photoelectric switch 1292 separately without affecting each other.

[0098] Furthermore, the controller is configured to determine that the camera assembly 123 extends out of the protective sleeve 113 when the lead screw 1212 rotates forward to the point where the sensing component 129 senses the sensing shaft 1281. Specifically, the controller, with the sealed cover closed as the initial state, drives the lead screw 1212 to rotate forward. Then, it receives a first trigger signal (generated by the horizontal portion 12611 of the sensing plate 1261) and a second trigger signal (generated by the sensing shaft 1281) successively through the photoelectric switch 1292. At this point, it is determined that the sensing component 129 has sensed the sensing shaft 1281, and the camera assembly 123 extends out of the protective sleeve 113. Subsequently, image acquisition and other tasks can be performed through the camera assembly 123.

[0099] When the lead screw 1212 rotates in the reverse direction until the sensing component 129 senses the sensing plate 1261, it is determined that the camera component 123 has retracted into the protective sleeve 113. Specifically, after determining that the camera component 123 has extended out of the protective sleeve 113, the controller controls the motor 1211 to continue rotating forward according to a preset program, and the rotation does not exceed one revolution to perform image acquisition; and the completion of image acquisition by the camera component 123 is used as a trigger signal; the controller controls the motor 1211 to perform reverse rotation, driving the camera component 123 and related components to rotate and rise, and then successively receives the third trigger signal (triggered by the sensing shaft 1281) and the fourth trigger signal (triggered by the horizontal part 12611 of the sensing plate 1261) through the photoelectric switch 1292, then it is determined that the reverse rotation has reached the point where the sensing component 129 senses the sensing plate 1261, and the camera component 123 retracts into the protective sleeve 113.

[0100] The terms "forward" and "reverse" are used to distinguish the direction of rotation. Forward rotation means the screw 1212 can drive the camera assembly 123 to extend, while reverse rotation means it can not. The controller can be a control system or part of a control system.

[0101] In one embodiment, the imaging mechanism 120 further includes a floating connector 124. The sealing cap 114 is connected to the lead screw 1212 via the floating connector 124. The floating connector 124 is configured to allow relative sway between the sealing cap 114 and the lead screw 1212. This design allows the sealing cap 114 to swing slightly, automatically adapting to possible installation deviations. When the sealing cap 114 rises to press against the protective sleeve 113, even if the plane of the sealing cap 114 is not perfectly parallel to the sealing surface of the protective sleeve 113, the floating connector 124 can automatically level itself, ensuring that the sealing gasket is evenly compressed and avoiding localized wear. Simultaneously, during the rotation of the lead screw 1212, it can also compensate for minor alignment errors, eliminate jamming forces, and make operation smoother.

[0102] This application also provides a pipeline monitoring system, which includes the pipeline monitoring device 100 described in any of the above embodiments, and further integrates a data processing unit, a wireless communication module, and a user terminal. The pipeline monitoring device 100 serves as the data acquisition terminal of the pipeline monitoring system, transmitting acquired images or video data of the pipeline interior to the data processing unit or directly to the user terminal via its built-in wireless communication module. The data processing unit analyzes and processes the received data to achieve pipeline status monitoring, anomaly identification, and early warning functions; the user terminal provides a human-machine interface, supporting real-time data display, historical data query, and maintenance management. This system achieves remote, real-time monitoring and intelligent management of pipeline status, improving operation and maintenance efficiency and safety.

[0103] See Figure 14 , Figure 14 A flowchart of a pipeline monitoring method according to an embodiment of this application is shown. The pipeline monitoring method provided in this application includes the following steps:

[0104] S01. Activate the pipeline monitoring device 100, so that the imaging mechanism 120 extends into the pipeline 200 to take pictures;

[0105] S02. After the shooting mechanism 120 completes the shooting, control the shooting mechanism 120 to rise and completely retract into the protective sleeve 113. The sealing cover 114 seals the lower end of the protective sleeve 113, shuts down the pipeline monitoring device, and seals and isolates the shooting mechanism 120 inside the protective sleeve 113 from the internal space of the pipeline 200.

[0106] Specifically, the installation process begins by fixing the pipeline monitoring device 100 to a predetermined position on the pipeline 200, ensuring a reliable seal between the base plate 111 and the pipeline 200 via a sealing gasket. Then, step S01 is executed: after starting the device, the motor 1211 drives the lead screw 1212 to rotate and lower the imaging mechanism 120, causing the camera assembly 123 to extend out of the protective sleeve 113 and enter the interior of the pipeline 200. When the photoelectric switch 1292 detects that the camera 1233 has reached the predetermined imaging position, it controls the motor 1211 to rotate at preset angle increments, pausing at each specified angle, simultaneously triggering the light source 1232 for illumination and the camera 1233 for imaging, completing the image acquisition of the interior of the pipeline 200. Next, step S02 is executed: after imaging is completed, the motor 1211 reverses, driving the imaging mechanism 120 to rise to its initial position, causing the sealing cover 114 to press against the lower end of the protective sleeve 113 to form a seal, and then the device is closed. This monitoring method achieves fully automated pipeline monitoring, ensuring the comprehensiveness and accuracy of the monitoring data. Furthermore, through precise positioning and sealing control, it effectively avoids oil fume pollution and extends the equipment maintenance cycle.

[0107] Example 1:

[0108] See Figure 9 The pipeline monitoring device and monitoring method provided in Embodiment 1 of this application are as follows:

[0109] In its initial state, the sealing cover 114 of the pipeline monitoring device 100 is closed, forming a sealing interface with the lower end of the protective sleeve 113 through the lower sealing gasket 119. (See reference...) Figure 10 After the device is started, the motor assembly 121 starts to run, driving the lead screw 1212 to perform a combined rotation and lifting motion, which drives the camera assembly 123, the sealing cover 114 and the lower sealing gasket 119 to rotate and descend synchronously.

[0110] See Figure 11 When the photoelectric switch 1292 mounted on the fixed plate 1152 detects the sensing shaft 1281 fixed on the lower limit bracket 128 (to clearly show the structure of the sensing shaft 1281 entering the slot-shaped opening of the photoelectric switch 1292), Figure 11 The sensor plate 1261 is hidden. The system determines that the camera assembly 123 has fully extended out of the protective sleeve 113, and marks this position as the zero point for shooting. Subsequently, the motor 1211 continues to rotate according to a preset program, rotating no more than one revolution, achieving specified angular positioning within the range of 0° to 360°. During each target angle pause, the light source 1232 is activated to provide illumination, and the camera 1233 performs image acquisition, completing omnidirectional visual monitoring of the interior of the pipe 200.

[0111] After image acquisition is complete, motor 1211 reverses direction, driving camera assembly 123 and related components to rotate and rise. (See also...) Figure 12 and Figure 13 When the photoelectric switch 1292 detects the lower end of the sensing plate 1261 fixed to the upper limit bracket 126, it indicates that the lower sealing gasket 119 has contacted the lower end face of the protective sleeve 113, and the system sets this position as the origin. Subsequently, the control motor 1211 continues to rotate half a turn in the same direction, causing the sealing cover 114 to rise by an additional 1 mm. The vertical displacement is converted into a pressing force on the lower sealing gasket 119 through the floating connector 124, further enhancing the contact pressure at the sealing interface and ensuring sealing reliability.

[0112] Finally, the power supply to the motor 1211 is cut off. Because the motor assembly 121 adopts a screw and nut structure with a self-locking function, the system can maintain its current position after the power is cut off, thereby ensuring that the lower sealing gasket 119 remains in a compressed and closed state, ensuring a continuous and effective sealing effect.

[0113] Example 2:

[0114] See Figure 15The pipeline monitoring device 100 of this application is preferably installed at the T-junction of the pipeline 200 to fully utilize its integrated rotation and lifting structure. Driven by the motor 1211, the imaging mechanism 120 can not only achieve vertical lifting movement, allowing the camera component 123 to precisely extend into the pipeline 200 or retract into the protective sleeve 113, but also drive the camera component 123 to rotate circumferentially via the rotation of the lead screw 1212, thereby achieving directional observation and image acquisition of three different pipeline sections at the junction. To minimize the contamination of the camera lens by oil fumes, image acquisition is set after 11 PM daily when catering operations cease and the pipeline 200 is idle, thus ensuring image clarity and the reliability of the monitoring data.

[0115] Based on Embodiment 1 of this application, Embodiment 2 of this application provides a pipeline monitoring device and monitoring method as follows:

[0116] See Figure 9 Initially, the sealing cap 114 is in the closed position. (See also...) Figure 10 After the device is started, the motor assembly 121 starts to run, and the drive screw 1212 drives the camera assembly 123, the sealing cover 114 and the lower sealing gasket 119 to perform a combined rotation and descent motion.

[0117] See Figure 11 When the photoelectric switch 1292, mounted on the fixed plate 1152, detects the sensing shaft 1281 mounted on the lower limit bracket 128, it determines that the camera assembly 123 has fully extended out of the protective sleeve 113, and the system automatically calibrates this position as the zero point. (Continue reading...) Figure 15 Subsequently, motor 1211 continues to operate according to control commands, stopping at preset positions of 90° (position a), 180° (position b), and 270° (position c). During each stop, light source 1232 illuminates to provide lighting, and camera 1233 is simultaneously triggered to acquire images, completing multi-directional visual monitoring of the interior of pipe 200. The acquired images and video data are transmitted to the terminal via wireless communication module.

[0118] It should be noted that the monitoring device wirelessly transmits the collected image and video data to the monitoring personnel's mobile terminal (such as a mobile phone or tablet) via a communication module. This completes one monitoring cycle.

[0119] After image acquisition is complete, motor 1211 reverses direction, driving camera assembly 123 and related components to rotate and rise. (See also...) Figure 12 and Figure 13When the photoelectric switch 1292 detects the lower end of the sensing plate 1261 fixed to the upper limit bracket 126, it indicates that the lower sealing gasket 119 has contacted the lower end face of the protective sleeve 113, and the system sets this position as the origin. Subsequently, the control motor 1211 continues to rotate half a turn in the same direction, causing the sealing cover 114 to rise by an additional 1 mm. The vertical displacement is converted into a pressing force on the lower sealing gasket 119 through the floating connector 124, further enhancing the contact pressure at the sealing interface and ensuring sealing reliability.

[0120] Finally, the power supply to the motor 1211 is cut off. Because the motor assembly 121 adopts a screw and nut structure with a self-locking function, the system can maintain its current position after the power is cut off, thereby ensuring that the lower sealing gasket 119 remains in a compressed and closed state, ensuring a continuous and effective sealing effect.

[0121] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0122] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A pipeline monitoring device, characterized in that, include: A frame mechanism, including a protective sleeve and a sealing cap, wherein at least a portion of the protective sleeve extends into the pipe; A shooting mechanism is mounted on the frame mechanism, the shooting mechanism including a camera assembly disposed within the protective sleeve, the camera assembly being configured to extend controllably out of the protective sleeve or retract into the protective sleeve; The sealing cap is directly or indirectly connected to the lower end of the camera assembly and can move up and down with the camera assembly to seal the lower end of the protective sleeve when the camera assembly retracts into the protective sleeve.

2. The pipeline monitoring device according to claim 1, characterized in that, The frame mechanism also includes: A base plate is installed on the pipe; A bracket is disposed on the side of the base plate opposite to the pipe, and the upper end of the protective sleeve is connected to the bracket.

3. The pipeline monitoring device according to claim 2, characterized in that, The frame mechanism also includes: A base plate sealing gasket is disposed between the base plate and the pipe; A bracket sealing gasket is disposed between the base plate and the bracket; An upper sealing gasket is disposed between the bracket and the upper end of the protective sleeve; A lower sealing gasket is disposed between the sealing cover and the protective sleeve.

4. The pipeline monitoring device according to claim 1, characterized in that, The frame mechanism also includes: A fixing component is disposed outside the pipe, and the fixing component is connected to the protective sleeve; The shooting mechanism further includes a motor assembly and an electric slip ring. The motor assembly includes a motor mounted on the fixed assembly and a lead screw driven by the motor. The camera assembly is mounted on the lead screw, and the sealing cover is connected to the lead screw. The electric slip ring includes an outer ring fixed to the fixed assembly and an inner ring fixed to the lead screw and moving synchronously with the lead screw. The camera assembly is electrically connected to the inner ring, and the outer ring is configured to be electrically connected to the control system. The motor is configured to drive the lead screw to simultaneously perform rotational motion around its own axis and lifting motion along its own axis, thereby driving the camera assembly to perform synchronous lifting and rotational motion.

5. The pipeline monitoring device according to claim 4, characterized in that, The fixing component includes a fixing bracket and a fixing plate. The fixing bracket is connected to the upper end of the protective sleeve, and the fixing plate is disposed above the fixing bracket. The motor is mounted on the fixed plate, and the fixed plate has a through hole for the lead screw to pass through.

6. The pipeline monitoring device according to claim 4, characterized in that, The filming facility also includes: A guide shaft is mounted on the fixing assembly; The upper limit bracket is rotatably connected to the lead screw and is slidably mounted on the guide shaft, which restricts the rotation of the upper limit bracket relative to the fixed assembly. The lower limit bracket is fixed to the upper end of the lead screw; The sensing plate is mounted on the upper limit bracket; The sensing shaft is mounted on the lower limit bracket; The sensing component is disposed on the fixed component; The controller is electrically connected to the sensing component and the motor component. The controller is configured to determine that the camera component extends out of the protective sleeve when the lead screw rotates in the forward direction until the sensing component senses the sensing shaft, and to determine that the camera component retracts into the protective sleeve when the lead screw rotates in the reverse direction until the sensing component senses the sensing plate.

7. The pipeline monitoring device according to claim 6, characterized in that, The filming facility also includes: A flange bearing is provided at the upper end of the lead screw. The inner ring of the flange bearing is connected to the lead screw, and the outer ring of the flange bearing is connected to the upper limit bracket. The flange bearing is used to limit the axial movement of the upper limit bracket relative to the lead screw. And / or, The sensing component includes a photoelectric switch, which is disposed on the fixed component and configured to sense the position of the sensing shaft and the sensing plate.

8. The pipeline monitoring device according to claim 4, characterized in that, The shooting mechanism also includes a floating connector, through which the sealing cover is connected to the lead screw, and the floating connector is configured to allow relative sway between the sealing cover and the lead screw.

9. A pipeline monitoring system, characterized in that, The pipeline monitoring system includes the pipeline monitoring device as described in any one of claims 1-8.

10. A pipeline monitoring method, characterized in that, The pipeline monitoring method, which uses the pipeline monitoring device as described in any one of claims 1-8, includes the following steps: S01. Activate the pipeline monitoring device, so that the imaging mechanism extends into the pipeline to take pictures; S02. After the shooting mechanism completes the shooting, control the shooting mechanism to rise and completely retract into the protective sleeve, and the sealing cover completes the sealing of the lower end of the protective sleeve, shutting down the pipeline monitoring device, so that the shooting mechanism inside the protective sleeve and the internal space of the pipeline are sealed and isolated from each other.

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