Endoscopic detection device suitable for detection in narrow pipeline

Abstract

The invention relates to the field of pipeline detection equipment, and discloses an endoscopic detection device suitable for detection in a narrow pipeline, the endoscopic detection device comprises a fixing frame, a driving shaft is arranged in the fixing frame, a rotating cylinder is fixed at the output end of the driving shaft, the outer wall of the rotating cylinder is sleeved with a pipeline, a storage box is fixed at one side of the fixing frame, and the storage box is fixed at the other side of the fixing frame. An adaptive assembly is arranged in the storage box, a circuit tube is arranged at one end of the pipeline, and an endoscopic head is arranged on the side, away from the pipeline, of the circuit tube; and the adaptive assembly comprises shells, the shells are symmetrically distributed up and down, the top wall of the shell at the bottom is provided with a first butt joint column embedded in the shell at the top, and the outer wall of the circuit tube is sleeved with the shells. According to the invention, small-amplitude shaking generated during roller movement is converted into piston movement to collect air pressure, so that the effects of automatically collecting energy and constructing an air pressure stabilizing system are achieved, the quality of a detected image is improved, and the observation and judgment accuracy of an operator is improved.

Description

Technical Field

[0001] This invention relates to the field of pipeline inspection equipment technology, and in particular to an endoscopic inspection device suitable for inspection in narrow pipelines. Background Technology

[0002] As a crucial component of industrial production and urban infrastructure, the internal inspection and maintenance of pipeline systems are essential for ensuring their safe operation. With continuous technological advancements, endoscopes have become one of the primary tools for inspecting the interior of pipelines. Existing pipeline endoscopy equipment typically includes rigid endoscopes, flexible endoscopes, and robotic endoscopy systems with moving mechanisms. These devices can penetrate deep into pipelines, capture images via cameras, and transmit the real-time condition of the pipeline's interior to a display device.

[0003] In practical applications, pipeline endoscopic inspection faces numerous challenges. When endoscopic equipment travels through irregular pipes, the lack of an effective stabilization mechanism often leads to shaking due to the unevenness of the pipe's interior, affecting image quality. In complex environments such as industrial production pipelines, the endoscope lens is easily obstructed by dirt adhering to the pipe's inner wall, affecting inspection results. Existing cleaning methods often require removing the equipment from the pipe, reducing work efficiency. Furthermore, pipe specifications vary significantly across different scenarios, making it difficult for existing fixed-specification endoscopic equipment to adapt to diverse pipe environments, especially when pipe inlet height and inner diameter vary. Additionally, if the contaminants carried by the endoscopic tubing after use are not promptly removed, they not only affect image quality for subsequent uses but also lead to gradual corrosion of equipment components. These issues, to some extent, limit the application effectiveness and scope of pipeline inspection technology. Summary of the Invention

[0004] The purpose of this invention is to provide an endoscopic inspection device suitable for inspection in narrow pipes, which solves the problems of unstable operation of pipe endoscopic inspection equipment in complex pipe environments, easy contamination and difficulty in cleaning the lens, difficulty in adapting to multiple pipe specifications and height changes, and inconvenience in cleaning and maintenance after use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An endoscopic inspection device suitable for inspection in narrow pipes includes a fixed frame, a drive shaft is provided inside the fixed frame, a rotating cylinder is fixed at the output end of the drive shaft, a pipe is sleeved on the outer wall of the rotating cylinder, a storage box is fixed on one side of the fixed frame, an adapter component is provided inside the storage box, an electrical conduit is provided at one end of the pipe, and an endoscope is provided on the side of the electrical conduit away from the pipe. The adapter component includes a housing, which is symmetrically distributed vertically. The bottom housing has a docking post 1 that fits into the inside of the top housing. The housing is sleeved on the outer wall of the circuit pipe. An air storage chamber is provided inside the housing. A fixing post 1 is fixed to the side of the air storage chamber away from the housing. A fixing post 2 slides inside the fixing post 1. A spring 1 is sleeved on the outer wall of the fixing post 2. One end of the spring 1 is fixed to the side of the fixing post 1 away from the air storage chamber. A base is fixed to the other end of the fixing post 1. The base is fixed to the end of the fixing post 2 away from the fixing post 1. A roller is provided inside the base. A piston assembly is provided inside the fixing post 1. The piston assembly includes a piston fixed to one end of a second fixing post away from the base. A one-way valve is provided on the side of the first fixing post near the gas storage chamber, penetrating the chamber and extending into it. A cleaning assembly is provided on one side of the outer casing. A control assembly is provided inside the gas storage chamber. An installation assembly is provided on one side of the outer casing. An automatic push rod mechanism is provided on one side of the fixing frame. Preferably, the control component includes: The pressure valve, located inside the housing, is used to regulate the output of gas in the gas storage chamber; The air pressure sensor, located inside the housing, is used to detect the air pressure intensity inside the air storage chamber and control the real-time adjustment of the air storage chamber.

[0006] Preferably, the mounting assembly includes a rotating ring threadedly connected to the outer wall of the circuit tube, a connecting ring rotating inside the rotating ring, and a push ring fixed to the side of the connecting ring away from the rotating ring.

[0007] Preferably, a fitting post is fixed on the side of the push ring away from the rotating ring, the fitting post is fitted inside the outer shell, a limit block is fixed on the inner wall of the connecting ring, and the limit block slides inside the circuit tube.

[0008] Preferably, the cleaning assembly includes a connecting pipe disposed on one side of the housing, a docking ring fixed to the outer wall of the circuit pipe, the connecting pipe being fitted inside the docking ring, and a spray head arranged in a ring array on one side of the docking ring.

[0009] Preferably, the automatic push rod mechanism includes a base shell, which is fixed to one side of the fixed frame. An electric push rod is provided inside the base shell. A rack is fixed to the output end of the electric push rod. The rack slides inside the base shell. A rotating column is rotatable inside the base shell. Gears are fixed to both ends of the rotating column. The rack meshes with the gears.

[0010] Preferably, a rotating rod is fixed to the outer wall of the rotating column, a rotating rod is rotated at one end of the rotating rod, a connecting block is rotated at the end of the rotating rod away from the rotating rod, a connecting frame is fixed to the top of the connecting block, and a retractable connecting plate is provided on one side of the connecting frame.

[0011] Preferably, an output frame is fixed to the top of the connecting frame, a plurality of spray heads are provided inside the output frame, a limit post is fixed to the top wall of the connecting frame, and a motor-driven conveyor wheel is provided inside the output frame.

[0012] Preferably, a slider slides inside the connecting frame, a sliding column slides inside the slider, the sliding column is fixed inside the connecting frame, a second spring is sleeved on the outer wall of the sliding column, one end of the second spring is fixed to the bottom of the slider, the other end of the sliding column is fixed inside the connecting frame, a second rotating column rotates inside the slider, and a driven wheel is fixed on the outer wall of the second rotating column.

[0013] Preferably, the display is provided on the side of the mounting bracket away from the bottom shell.

[0014] In summary, the present invention has at least one of the following beneficial technical effects: 1. This invention achieves automatic energy collection and builds a stable air pressure system by setting a spring-supported roller adapter component outside the circuit tube and converting the small wobbling generated by the roller movement into piston movement to collect air pressure. At the same time, the air pressure sensor monitors the air pressure status in the air storage chamber in real time, enabling the system to intelligently adjust the air pressure release and maintain the optimal operating state. This solves the technical problem of image jitter caused by the unstable operation of traditional endoscopes inside the tube, thus improving the quality of the detection image and increasing the accuracy of the operator's observation and judgment.

[0015] 2. This invention, through an innovative connection design between the air storage chamber and the spray structure, achieves the effect of using the automatically collected air pressure during the detection process to drive the cleaning water to rinse the endoscope head. At the same time, through the precise control of the air pressure valve and the synergistic effect of the spray heads distributed in a ring array on the docking ring, the cleaning process is more uniform and efficient while minimizing water consumption. This solves the technical problem that traditional endoscopes are easily contaminated and difficult to clean in dirty pipe environments. As a result, the lens can be cleaned in real time without interrupting the detection, the single detection operation time can be extended, and the number of times the device needs to repeatedly enter and exit the pipe can be reduced.

[0016] 3. This invention achieves automatic adaptation to clamping and conveying of pipes of different diameters through the design of a conveying wheel and a driven wheel driven by a spring. At the same time, the height adjustment device, which combines gear and rack transmission with a multi-link mechanism, allows the equipment to be precisely adjusted to the most suitable working height. The recycling pipe is cleaned in real time by a spray head. This solves the multiple technical problems of traditional endoscopic equipment, such as difficulty in adapting to multiple specifications of pipes, limited working height, and damage caused by residual pollutants after recycling. As a result, the applicability of the equipment is expanded, its on-site adaptability is enhanced, and the labor intensity of operators is reduced. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the working state of the endoscope of the present invention; Figure 3 This is a schematic diagram of the piston assembly of the present invention; Figure 4 This is a schematic diagram of the internal structure distribution of the outer shell of the present invention; Figure 5 This is an exploded view of the endoscope structure of the present invention; Figure 6 This is an exploded view of the fixed component structure of the present invention; Figure 7 This is a schematic diagram of the automatic push rod mechanism of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the bottom shell of the present invention; Figure 9 This is a schematic cross-sectional view of the connecting frame structure of the present invention.

[0018] The components include: 1. Fixing frame; 2. Drive shaft; 3. Rotary drum; 4. Storage box; 5. Pipeline; 6. Circuit conduit; 7. Endoscope; 8. Housing; 9. Fixing post one; 10. Fixing post two; 11. Spring one; 12. Base; 13. Roller; 14. Piston; 15. One-way valve; 16. Connecting pipe; 17. Connecting ring; 18. Spray head one; 19. Connecting post one; 20. Rotating ring; 21. Push ring; 22. Connecting ring; 23. Limiting block; 24. Fitting post; 5. Bottom shell; 26. Connecting plate; 27. Electric push rod; 28. Rack; 29. ​​Rotating column one; 30. Gear; 31. Rotating rod one; 32. Rotating rod two; 33. Connecting block; 34. Connecting frame; 35. Output frame; 36. Spray head two; 37. Limiting post; 38. Conveying wheel; 39. Sliding block; 40. Sliding column; 41. Spring two; 42. Rotating column two; 43. Driven wheel; 44. Display; 45. Air storage chamber; 46. Air pressure valve; 47. Air pressure sensor. Detailed Implementation

[0019] Please see the appendix Figure 1 -Appendix Figure 5 This invention provides an endoscopic inspection device suitable for inspection in narrow pipes, including a fixed frame 1, a drive shaft 2 inside the fixed frame 1, a rotating cylinder 3 fixed at the output end of the drive shaft 2, a pipe 5 sleeved on the outer wall of the rotating cylinder 3, a storage box 4 fixed on one side of the fixed frame 1, an adapter component inside the storage box 4, an electrical conduit 6 at one end of the pipe 5, and an endoscope head 7 on the side of the electrical conduit 6 away from the pipe 5. The adapter component includes a housing 8, which is symmetrically distributed vertically. The bottom housing 8 has a docking post 19 that fits into the top housing 8. The housing 8 is fitted onto the outer wall of the circuit pipe 6. The housing 8 has an air storage chamber 45 inside. A fixing post 9 is fixed to the side of the air storage chamber 45 away from the housing 8. A fixing post 10 slides inside the fixing post 19. A spring 11 is fitted on the outer wall of the fixing post 10. One end of the spring 11 is fixed to the side of the fixing post 19 away from the air storage chamber 45. The other end of the fixing post 19 is fixedly connected to a base 12. The base 12 is fixed to the end of the fixing post 10 away from the fixing post 19. A roller 13 is provided inside the base 12. A piston assembly is provided inside the fixing post 19. The piston assembly includes a piston 14, which is fixed to the end of the fixing post 10 away from the base 12. The fixing post 19 is provided with a one-way valve 15 that penetrates the air storage chamber 45 and extends into it. A cleaning component is provided on one side of the outer casing 8. A control component is provided inside the air storage chamber 45. An installation component is provided on one side of the outer casing 8. An automatic push rod mechanism is provided on one side of the fixing frame 1. The control components include: The pressure valve 46 is located inside the housing 8 and is used to regulate the output of gas in the gas storage chamber 45. The air pressure sensor 47 is located inside the housing 8 and is used to detect the air pressure intensity in the air storage chamber 45 and control the air storage chamber 45 to adjust in real time. A display 44 is mounted on the side of the mounting bracket away from the bottom shell 25; Specifically, in this embodiment, to ensure that the endoscope 7 can be stably inserted into the complex and ever-changing pipe environment and to reduce wear against the pipe wall, this device adopts an innovative adaptive centering system. Before the formal inspection, the operator needs to take out the adapter component from the storage box 4 and install it. This process is simple and quick and can be completed without professional tools. After the two outer shells 8 are connected and installed, the system has the ability to automatically adapt to changes in the pipe's inner diameter. When the endoscope 7 begins to extend into the pipe, the spring 11 automatically adjusts the pressure according to the pipe's inner diameter, precisely pushing the bases 12 on both sides to the optimal position. This allows the bases 12 to drive the rollers 13 to form just the right amount of contact force with the pipe's inner wall, ensuring smooth rolling without excessive friction. This elastic support structure ensures that the endoscope 7 is always stably pushed into the pipe's center position, thereby improving the image acquisition quality. In the initial stage of operation, spring 11 is not fixed. Instead, it is periodically compressed by the base 12 due to the natural bumps as the device moves through the pipe. This motion is converted into the reciprocating motion of the fixed column 10 through precise mechanical transmission, which in turn drives the piston 14 to perform multiple small-amplitude air pumping movements. Through this energy conversion mechanism, the device can automatically convert the mechanical energy generated during movement into air pressure energy, which is then injected into the air storage chamber 45 through the one-way valve 15 for storage, achieving energy self-sufficiency. When the air pressure in the air storage chamber 45 accumulates to a preset threshold, the air pressure sensor 47 monitors and adjusts in real time, preventing the fixed column 10 from easily driving the piston 14 to continue pumping air. At this point, the system automatically enters a stable operating state, and the base 12, along with the rollers 13, moves firmly against the inner wall of the pipe in a fixed position, effectively eliminating the shaking problem common in traditional endoscopes. This ensures that the image captured by the endoscope head 7 is stable and clear on the monitor 44, significantly improving the accuracy and reliability of the detection.

[0020] Please see the appendix Figure 5 - Appendix Figure 6 The mounting assembly includes a rotating ring 20, which is threaded to the outer wall of the circuit tube 6. A connecting ring 22 rotates inside the rotating ring 20, and a push ring 21 is fixed on the side of the connecting ring 22 away from the rotating ring 20. A fitting post 24 is fixed on the side of the push ring 21 away from the rotating ring 20. The fitting post 24 is fitted inside the outer shell 8. A limit block 23 is fixed on the inner wall of the connecting ring 22. The limit block 23 slides inside the circuit tube 6. The cleaning assembly includes a connecting pipe 16, which is disposed on one side of the housing 8. A docking ring 17 is fixed to the outer wall of the circuit pipe 6. The connecting pipe 16 is fitted inside the docking ring 17. A spray head 18 arranged in a ring array is disposed on one side of the docking ring 17. Specifically, in order to ensure that it can be firmly fixed to the outer wall of the circuit tube 6 and achieve a stable and reliable detection effect, this embodiment adopts a multi-locking mechanism. After the various outer shells 8 are precisely connected through the docking post 19, the outer shells 8 will form a complete closed structure, completely enclosing the circuit tube 6 and providing good protection and support. The operator only needs to gently push the outer shell 8 to insert the docking tube 16 into the docking ring 17 to complete the initial connection. This plug-in connection design greatly simplifies the on-site installation difficulty and improves work efficiency. Subsequently, by rotating the rotating ring 20, under the action of the special mechanism of the connecting ring 22, the rotational force is converted into a thrust, ensuring that the push ring 21 will not follow the rotation but will maintain directional sliding. At the same time, the limiting block 23 plays a precise guiding role to prevent any deviation. This transmission design allows the fitting post 24 to be precisely connected to the two outer shells 8, forming a solid three-point locking structure, which completely fixes the outer shell 8 to the outer surface of the circuit tube 6, and will not loosen even in complex pipeline environments. Once the equipment is fully connected, the device achieves functional linkage. The gas accumulated in the gas storage chamber 45 can release pressure as needed through the intelligent control system of the pressure valve 46, driving the pre-stored clean water source in the outer shell 8 to be efficiently transported to the docking ring 17 through the docking pipe 16. Then, it is guided by the docking ring 17 to the ring-shaped spray heads 18 to form a cleaning spray, which sprays and cleans all kinds of dirt attached to the surface of the endoscope 7, ensuring that the image captured by the endoscope 7 is always clear and sharp, greatly improving the detection accuracy and work continuity.

[0021] Please see the appendix Figure 1 Appendix Figure 7 Appendix Figure 8 and attached Figure 9 The automatic push rod mechanism includes a base shell 25, which is fixed to one side of the fixed frame 1. An electric push rod 27 is installed inside the base shell 25. A rack 28 is fixed to the output end of the electric push rod 27. The rack 28 slides inside the base shell 25. A rotating column 29 rotates inside the base shell 25. Gears 30 are fixed at both ends of the rotating column 29. The rack 28 meshes with the gears 30. A rotating rod 31 is fixed to the outer wall of the rotating column 29. A rotating rod 32 rotates at one end of the rotating rod 31. A connecting block 33 rotates at the end of the rotating rod 32 away from the rotating rod 31. A connecting frame 34 is fixed to the top of the connecting block 33. A retractable connecting plate 26 is provided on one side of the connecting frame 34. The top of the connecting frame 34 is fixed with an output frame 35, and multiple spray heads 36 are installed inside the output frame 35. The top wall of the connecting frame 34 is fixed with a limit post 37, and the output frame 35 is installed with a motor-driven conveyor wheel 38. Inside the connecting frame 34, there is a sliding block 39, inside the sliding block 39, there is a sliding column 40, the sliding column 40 is fixed inside the connecting frame 34, and a second spring 41 is sleeved on the outer wall of the sliding column 40. One end of the second spring 41 is fixed to the bottom of the sliding block 39, and the other end of the sliding column 40 is fixed inside the connecting frame 34. Inside the sliding block 39, there is a rotating column 42, and a driven wheel 43 is fixed on the outer wall of the rotating column 42. Specifically, considering the variable height of the pipeline inlet on site, this device is designed with a high-precision height adjustment mechanism, which greatly improves the adaptability of the detection process. When the pipeline inlet is high, the operator only needs to activate the electric push rod 27 through the control panel. The linear thrust output by the push rod directly acts on the rack 28. The teeth on the rack 28 mesh perfectly with the gear 30, causing the gear 30 to start rotating. This drives the coaxially fixed rotating column 29 to rotate synchronously. As the rotating column 29 changes its tilt angle, the tilt angle of the rotating rod 31 also changes, forming a coordinated motion trajectory. In this way, the change in angle between rotating rod 31 and rotating rod 32 is ultimately converted into the lifting motion of connecting frame 34 through connecting block 33. The guiding effect of connecting plate 26 ensures that the entire lifting process proceeds smoothly along the preset track, effectively avoiding swaying and deviation. This allows the device to be precisely adjusted to the most suitable working height, greatly improving the equipment's adaptability to different installation environments. Moreover, after the height adjustment is completed, the pipeline 5 can be transported normally. At this time, the pipeline 5 is restricted by the limit stake 37 and transported segment by segment by the conveyor wheel 38 driven by the motor. During the rotation and transport process of the conveyor wheel 38, the corresponding driven wheel 43 is pushed by spring 41, causing the sliding wheel 43 to move smoothly. Block 39 slides under the restriction of sliding column 40, thereby pushing rotating column 42 and driven wheel 43 to fit against pipe 5. This allows pipe 5 to be smoothly transported into the pipeline under the clamping of driven wheel 43 and conveying wheel 38. During recycling, drive shaft 2 drives rotating drum 3 to rotate, and conveying wheel 38 cooperates to make pipe 5 start to be rewound onto rotating drum 3. The rewound pipe 5 will first pass through the opening of output frame 35, and finally be sprayed with water from the water tank at the top of output frame 35 by spray head 36 to rinse pipe 5, preventing it from carrying foreign objects back to the rotating drum 3 position, which could cause machine jamming or corrosion after long-term storage.

[0022] Working principle: When it is necessary to use equipment to enter the pipeline for exploration, the equipment is first moved to the vicinity of the pipeline to be explored using the fixing frame 1. Then, the circuit pipe 6 is pulled, which in turn drives the pipe 5 to extend to the pipeline opening. At this time, it is necessary to determine the required pipeline height. When it is necessary to adjust the height, simply control the electric push rod 27 to push the rack 28. This allows the rack 28 to mesh with the tooth grooves of the gear 30, causing the gear 30 to drive the rotating column 29 to rotate synchronously. When the rotating column 29 rotates, the corresponding rotating rod 29 rotates. 31 will rotate around the rotating column 29 as the center, which will drive the rotating rod 32 to change synchronously with the change of the tilt angle of the rotating rod 31. This will push the connecting frame 34 through the connecting block 33, so that it is raised under the restriction of the connecting plate 26. After adjusting to the appropriate height, we need to take out the installation components from the storage box 4. At this time, we first assemble the two outer shells 8 to the outside of the circuit pipe 6 through the docking post 19. After the initial assembly, we only need to control the docking pipe 16 to connect to the hole of the docking ring 17 through the outer shell 8. After positioning, the rotating ring 20 can be rotated to allow it to slide under the action of the threads. Simultaneously, the push ring 21, due to the presence of the connecting ring 22, will be pushed by the rotating ring 20, but will not rotate synchronously with it. Furthermore, the push ring 21, restricted by the limiting block 23, will only slide smoothly, allowing the fitting post 24 to be inserted into the initially assembled outer shell 8, thus completing the fixation. At this point, the assembled circuit pipe 6 is placed into the pipe. Through the restorative property of the spring 11, it can adapt to pipes of various inner diameters. When encountering small inner diameter pipes... When the spring 11 is compressed, the base 12 and roller 13 slide along with the fixed column 10 to adapt to the inner diameter of the pipe. After the inspection is completed, the spring 11, through its own restorative property, pushes the base 12 and roller 13 back to their original position. Regardless of whether the spring 11 is compressed or in its normal state, the roller 13 is always in contact with the inner wall of the pipe, thus stabilizing the circuit tube 6 and the endoscope 7 so that they can be inserted into the pipe for inspection in the middle position.The conveyor wheel 38 is started by the motor output. At this time, the driven wheel 43, pushed by the second spring 41, allows the slider 39 to slide along the sliding column 40, so that the driven wheel 43 can adapt to the direction of the conveyed pipeline 5, thus cooperating with the conveyor wheel 38 to smoothly push the pipeline 5 out. During the pushing process, the circuit pipe 6, along with the endoscope 7, rolls against the inner wall of the pipeline through the roller 13, so that it can be stably inserted into the pipeline. During the movement of the roller 13, the resulting bumps will cause the base 12 in each direction to exert a small amount of pressure on the first spring 11 through the second fixed column 10. At the same time as the pressure, the piston 14 moves synchronously with the second fixed column 10, repeatedly pushing the gas through the one-way valve 15 in small amplitudes. The system stores information and monitors the air pressure using the air pressure sensor 47. It can also release gas in real time to relieve pressure. Furthermore, when gas pressure is present, the high air pressure during the movement of the roller 13 against the inner wall of the pipe prevents the fixed column 10 from easily pushing the piston 14 along with the base 12 to continue injecting air, making the insertion process more stable. When the equipment is inserted deep into the pipe for monitoring, if the endoscope 7's view is obstructed by dirt inside the pipe, the gas released by the air pressure valve 46 can push the pre-stored cleaning water inside the outer casing 8, delivering it through the connecting pipe 16 to the docking ring 17. Finally, the endoscope 7 is cleaned through the spray head 18, ensuring a clear view.

Claims

1. An endoscopic inspection device suitable for inspection in narrow pipes, comprising a mounting bracket (1), characterized in that, The fixed frame (1) is provided with a drive shaft (2) inside. A rotating cylinder (3) is fixed at the output end of the drive shaft (2). A pipe (5) is sleeved on the outer wall of the rotating cylinder (3). A storage box (4) is fixed on one side of the fixed frame (1). An adapter component is provided inside the storage box (4). An electrical tube (6) is provided at one end of the pipe (5). An endoscope (7) is provided on the side of the electrical tube (6) away from the pipe (5). The adapter component includes a housing (8), which is symmetrically distributed vertically. The bottom housing (8) has a docking post (19) that fits into the top housing (8). The housing (8) is fitted onto the outer wall of the circuit tube (6). The housing (8) has an air storage chamber (45) inside. A fixing post (9) is fixed on the side of the air storage chamber (45) away from the housing (8). A fixing post (10) slides inside the fixing post (9). A spring (11) is fitted on the outer wall of the fixing post (10). One end of the spring (11) is fixed on the side of the fixing post (9) away from the air storage chamber (45). The other end of the fixing post (9) is fixedly connected to a base (12). The base (12) is fixed on the end of the fixing post (10) away from the fixing post (9). A roller (13) is provided inside the base (12). A piston assembly is provided inside the fixing post (9). The piston assembly includes a piston (14), which is fixed to the end of the second fixing column (10) away from the base (12). The first fixing column (9) is provided with a one-way valve (15) that penetrates the gas storage chamber (45) and extends into it. A cleaning component is provided on one side of the outer shell (8). A control component is provided inside the gas storage chamber (45). An installation component is provided on one side of the outer shell (8). An automatic push rod mechanism is provided on one side of the fixing frame (1).

2. The endoscopic inspection device suitable for inspection in narrow pipes according to claim 1, characterized in that, The control component includes: A pressure valve (46) is installed inside the housing (8) and is used to regulate the output of gas in the gas storage chamber (45); A pressure sensor (47) is installed inside the housing (8) to detect the pressure intensity inside the gas storage chamber (45) and control the real-time adjustment of the gas storage chamber (45).

3. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 1, characterized in that, The mounting assembly includes a rotating ring (20) which is threaded to the outer wall of the circuit tube (6). A connecting ring (22) rotates inside the rotating ring (20), and a push ring (21) is fixed on the side of the connecting ring (22) away from the rotating ring (20).

4. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 3, characterized in that, The push ring (21) is fixed with a fitting post (24) on the side away from the rotating ring (20). The fitting post (24) is fitted inside the outer shell (8). The inner wall of the connecting ring (22) is fixed with a limit block (23). The limit block (23) slides inside the circuit tube (6).

5. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 1, characterized in that, The cleaning assembly includes a connecting pipe (16), which is disposed on one side of the housing (8). A docking ring (17) is fixed on the outer wall of the circuit pipe (6). The connecting pipe (16) is fitted inside the docking ring (17). A spray head (18) arranged in a ring array is disposed on one side of the docking ring (17).

6. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 1, characterized in that, The automatic push rod mechanism includes a base shell (25), which is fixed to one side of the fixed frame (1). An electric push rod (27) is provided inside the base shell (25). A rack (28) is fixed at the output end of the electric push rod (27). The rack (28) slides inside the base shell (25). A rotating column (29) rotates inside the base shell (25). Gears (30) are fixed at both ends of the rotating column (29). The rack (28) meshes with the gears (30).

7. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 6, characterized in that, The outer wall of the rotating column (29) is fixed with a rotating rod (31). One end of the rotating rod (31) is rotated with a rotating rod (32). The end of the rotating rod (32) away from the rotating rod (31) is rotated with a connecting block (33). The top of the connecting block (33) is fixed with a connecting frame (34). A retractable connecting plate (26) is provided on one side of the connecting frame (34).

8. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 7, characterized in that, The top of the connecting frame (34) is fixed with an output frame (35), and the output frame (35) is provided with multiple spray heads (36). The top wall of the connecting frame (34) is fixed with a limit stake (37), and the output frame (35) is provided with a motor-driven conveyor wheel (38).

9. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 7, characterized in that, The connecting frame (34) has a sliding block (39) inside, and a sliding column (40) inside the sliding block (39) is fixed inside the connecting frame (34). A second spring (41) is sleeved on the outer wall of the sliding column (40). One end of the second spring (41) is fixed to the bottom of the sliding block (39), and the other end of the sliding column (40) is fixed inside the connecting frame (34). A second rotating column (42) rotates inside the sliding block (39), and a driven wheel (43) is fixed on the outer wall of the second rotating column (42).

10. An endoscopic inspection device suitable for inspection in narrow pipes according to claim 1, characterized in that, The display (44) is provided on the side of the mounting bracket (1) away from the bottom shell (25).

Images