A device for detecting the inner wall of a delivery pipeline

Abstract

This invention discloses a pipeline inner wall inspection device, relating to the field of pipeline inner wall inspection technology. To address the problem of inaccurate pipeline inner wall inspection results due to the inability to quickly clean deposits on the pipeline inner wall, which affects the normal imaging and inspection of the pipeline inner wall by the inspection camera, the device specifically includes a motor. A fixing frame is fixed to the outer wall of the motor, and a fixing cylinder is fixed to the outer wall of the fixing frame. First connecting plates are fixed to one side of the outer wall of both the fixing cylinder and the fixing frame. A first limiting ring is slidably connected to the inner wall of the first connecting plate, and a first mounting block is fixed to the outer wall of the first limiting ring. The output shaft of the motor is connected to a rotating shaft via a coupling. The first mounting block is fixed to the outer wall of the rotating shaft, and a second mounting block is slidably connected to the outer wall of the rotating shaft. This invention, using only one motor, can drive the inspection device to move stably along the pipeline inner wall while continuously cleaning the inner wall, thus improving the accuracy of pipeline inner wall inspection.

Description

Technical Field

[0001] This invention relates to the field of pipeline inner wall inspection technology, and in particular to a device for inspecting the inner wall of a transport pipeline. Background Technology

[0002] Pipelines are devices made up of pipes, pipe fittings, and valves used to transport gases, liquids, or fluids containing solid particles. In order to improve the efficiency and safety of pipeline transportation, it is necessary to regularly observe and inspect the inner wall of the pipeline to check for corrosion, damage, and cracks, as well as the connection status of each pipe connection. At this time, corresponding pipeline inner wall inspection devices are needed to inspect the inner wall of the corresponding pipeline.

[0003] A search revealed a Chinese patent application with patent number CN202211169620.9, which discloses a self-stabilizing pipeline inner wall inspection robot. The robot includes a traveling component and an inspection main component. The traveling component includes a traveling cylindrical shell, and the inspection main component includes an inspection cylindrical shell. However, the above technical solution does not include a corresponding mechanism for cleaning the pipeline inner wall. As a result, the pipeline inner wall is prone to having a lot of deposits. These deposits can obstruct the pipeline inner wall, affecting the normal imaging and inspection of the pipeline inner wall by the inspection camera, leading to inaccurate pipeline inner wall inspection results. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting the inner wall of a delivery pipeline.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for detecting the inner wall of a conveying pipeline includes a motor, a fixed frame fixed to the outer wall of the motor, a fixed cylinder fixed to the outer wall of the fixed frame, a first connecting plate fixed to one side of the outer wall of the fixed cylinder and the fixed frame, a first limiting ring slidably connected to the inner wall of the first connecting plate, a first mounting block fixed to the outer wall of the first limiting ring, an output shaft of the motor connected to a rotating shaft via a coupling, a first mounting block fixed to the outer wall of the rotating shaft, a second mounting block slidably connected to the outer wall of the rotating shaft, multiple first arc-shaped spring plates and second arc-shaped spring plates fixed to the outer walls of the first and second mounting blocks respectively, second limiting rings fixed to the outer walls of the second mounting blocks respectively, a second connecting plate slidably connected to the outer wall of the second limiting ring, a movable cylinder fixed to the outer wall of the second connecting plate, a support ring fixed to the outer wall of the movable cylinder, a guide ring slidably connected to the outer wall of the support ring, an internal gear ring fixed to the outer wall of the guide ring, multiple support rods fixed to the outer wall of the internal gear ring, and an annular cleaning brush fixed to the outer wall of the support rods.

[0007] Preferably, the outer walls of the fixed cylinder and the movable cylinder are respectively provided with multiple through slots. The first arc-shaped spring plate and the second arc-shaped spring plate pass through the through slots and penetrate the outer walls of the fixed cylinder and the movable cylinder, respectively. The first arc-shaped spring plate and the second arc-shaped spring plate are inclined in opposite directions. A second friction block is fixed to one end of the second arc-shaped spring plate, and an air bag is fixed to one end of the first arc-shaped spring plate. A first friction block is fixed to one side of the air bag. A cylinder is fixed to the outer wall of the first connecting plate, and the output shaft of the cylinder is fixed to one side of the outer wall of the second connecting plate.

[0008] Furthermore: the airbag is connected to the input end of the cylinder through an air supply pipeline, and the outer walls on both sides of the first friction block are respectively fixed with stop blocks, and the outer wall of the fixed cylinder is fixed with multiple sets of stop rods.

[0009] A further preferred embodiment: multiple telescopic rods are fixed to the outer wall of the fixed frame and the movable cylinder, and pulleys are rotatably connected to the telescopic ends of the telescopic rods; multiple detection cameras are fixed to one side of the outer wall of the fixed cylinder.

[0010] As a preferred embodiment of the present invention: a plurality of fixed tubes are fixed to the inner wall of the fixed cylinder, and a lead screw and a plurality of guide rods are respectively fixed to the inner wall of the fixed tubes. A plurality of guide tubes are fixed to the inner wall of the movable cylinder, and the guide tubes are respectively slidably connected to the outer walls of the guide rods and the lead screws.

[0011] As a further preferred embodiment of the present invention: a sliding sleeve is fixed to one side of the outer wall of the guide tube, the inner wall of the sliding sleeve is slidably connected to the outer wall of the guide rod, a plurality of connecting rods are fixed to the outer wall of the sliding sleeve, one end of the connecting rod is rotatably connected to an internal threaded sleeve through a bearing, and the internal threaded sleeve is threadedly connected to the outer wall of the lead screw.

[0012] As a further embodiment of the present invention: a gear is fixed on the outer wall of the internal threaded sleeve, and multiple gears are rotatably connected to the outer wall of the sliding sleeve through bearings, and the gears mesh with the internal gear ring.

[0013] Based on the aforementioned scheme: a stretchable shielding strip is fixed to one side of the outer wall of the connecting rod, a baffle is fixed to one side of the outer wall of the stretchable shielding strip, and the outer wall of the baffle is fixed to one side of the outer wall of the fixed cylinder.

[0014] Based on the aforementioned scheme, the preferred embodiment is as follows: multiple connecting frames are fixed to one side of the outer wall of the connecting rod, and a brush is fixed to one side of the outer wall of the connecting frame.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. In this invention, the motor only needs to drive the rotating shaft to rotate clockwise and counterclockwise alternately by corresponding angles to drive the movable cylinder and the fixed cylinder to move steadily forward along the inner wall of the pipe. At the same time, the annular cleaning brush set on the outer wall of the movable cylinder can continuously clean the inner wall of the pipe as the movable cylinder moves forward. This allows multiple detection cameras located on one side of the fixed cylinder to capture the true condition of the inner wall of the pipe after the attachments have been removed. Thus, with only one motor, the detection device can be driven to move steadily forward along the inner wall of the pipe while continuously cleaning the inner wall of the pipe, improving the accuracy of the inner wall detection.

[0017] 2. As one end of the first arc-shaped spring plate extends outward, the first friction block located at one end of the first arc-shaped spring plate will contact the inner wall of the pipe. At this time, the first friction block can continuously squeeze the airbag on one side, forcing the gas inside the airbag into the cylinder. At the same time, multiple second arc-shaped spring plates on the outer wall of the second mounting block will rotate and retract into the movable cylinder, moving the second friction block on the outer side of the second arc-shaped spring plate away from the inner wall of the pipe. This allows the inflated cylinder to stably push the movable cylinder forward under the support of the telescopic rod and pulley. At this time, the fixed cylinder will be stably supported on the inner wall of the pipe under the action of the friction between the first friction block and the inner wall of the pipe. While the movable cylinder moves forward a corresponding distance, the inner wall of the pipe is cleaned by the annular cleaning brush on the outer wall of the movable cylinder.

[0018] 3. Control the motor to drive the rotating shaft to rotate clockwise. At this time, the second arc-shaped spring plate on the outer wall of the second mounting block will continuously extend outward, allowing the second friction block at one end of the second arc-shaped spring plate to abut against the inner wall of the pipe. At the same time, multiple first arc-shaped spring plates on the outer wall of the first mounting block will retract inward, bringing the first friction block away from the inner wall of the pipe. As the first arc-shaped spring plate drives the airbag and the first friction block on the outer wall to fall continuously, the blocks on both sides of the first friction block will contact the stop bar. Under the obstruction of the stop bar and the stop block, the airbag that follows the first arc-shaped spring plate to fall continuously is stretched. The airbag draws the gas filled into the cylinder back into the airbag. At this time, the entire fixed cylinder will move forward a corresponding distance under the traction of the cylinder during the retraction, allowing multiple detection cameras on the outer wall of the fixed cylinder to move to the bottom of the inner wall of the pipe after the previous annular cleaning brush has cleaned it, and to take pictures and detect the inner wall of the pipe.

[0019] 4. When the cylinder pushes the movable cylinder to move back and forth on one side of the fixed cylinder, it will drive the internal threaded sleeve to move back and forth on the outer wall of the screw. This will drive the gear on the outer wall of the internal threaded sleeve to rotate through the thread. When the gear rotates, it will drive the internal gear ring connected to the outer wall to rotate under the support and guidance of multiple gears. This allows the annular cleaning brush to rotate simultaneously while moving forward to clean the inner wall of the pipe, thereby improving the cleaning effect of the annular cleaning brush on the inner wall of the pipe.

[0020] 5. The brush can move back and forth along the fixed cylinder on one side, and each time it moves back and forth, the brush will pass over the lens of the detection camera, thereby sweeping away the dust attached to the lens of the detection camera and improving the clarity of the detection camera's images. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a pipeline inner wall detection device proposed in this invention;

[0022] Figure 2 This is a side view of the inner wall detection device for a conveying pipeline proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the fixed cylinder and movable cylinder structure of the pipeline inner wall detection device proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the first mounting block structure of a pipeline inner wall detection device proposed in this invention;

[0025] Figure 5 This is a schematic diagram of the second mounting block structure of a pipeline inner wall detection device proposed in this invention;

[0026] Figure 6 This is a schematic diagram of the fixed cylinder structure of a pipeline inner wall detection device proposed in this invention.

[0027] In the diagram: 1 Motor, 2 Fixed Cylinder, 3 Fixed Frame, 4 Telescopic Rod, 5 Pulley, 6 Stop Rod, 7 First Friction Block, 8 Airbag, 9 Stop Block, 10 First Arc-shaped Spring Plate, 11 Baffle, 12 Stretchable Shielding Strip, 13 Second Friction Block, 14 Second Arc-shaped Spring Plate, 15 Movable Cylinder, 16 Rotating Shaft, 17 Annular Cleaning Brush, 18 Guide Rod, 19 Connecting Frame, 20 Brush, 21 Detection Camera, 22 Guide Tube, 23 Second Limiting Ring, 24 Second Mounting Block, 25 Support Rod, 26 Internal Gear Ring, 27 Guide Ring, 28 Support Ring, 29 Cylinder, 30 Second Connecting Plate, 31 Lead Screw, 32 First Connecting Plate, 33 Fixed Tube, 34 First Limiting Ring, 35 First Mounting Block, 36 Sliding Sleeve, 37 Gear, 38 Connecting Rod, 39 Internal Threaded Sleeve. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] Example 1: A device for detecting the inner wall of a delivery pipeline, such as Figure 1-6 As shown, the device includes a motor 1, a fixing frame 3 fixed to the outer wall of the motor 1, a fixing cylinder 2 fixed to the outer wall of the fixing frame 3, a first connecting plate 32 fixed to one side of the outer wall of the fixing cylinder 2 and the fixing frame 3, a first limiting ring 34 slidably connected to the inner wall of the first connecting plate 32, a first mounting block 35 fixed to the outer wall of the first limiting ring 34, the output shaft of the motor 1 connected to a rotating shaft 16 via a coupling, the first mounting block 35 fixed to the outer wall of the rotating shaft 16, and a second mounting block 24 slidably connected to the outer wall of the rotating shaft 16. The first mounting block 35 and the second mounting block... Multiple first arc-shaped spring plates 10 and second arc-shaped spring plates 14 are fixed to the outer wall of the second mounting block 24 respectively. Second limiting rings 23 are fixed to the outer walls on both sides of the second mounting block 24 respectively. A second connecting plate 30 is slidably connected to the outer wall of the second limiting ring 23. A movable cylinder 15 is fixed to the outer wall of the second connecting plate 30. A support ring 28 is fixed to the outer wall of the movable cylinder 15. A guide ring 27 is slidably connected to the outer wall of the support ring 28. An internal gear ring 26 is fixed to the outer wall of the guide ring 27. Multiple support rods 25 are fixed to the outer wall of the internal gear ring 26. An annular cleaning brush 17 is fixed to the outer wall of the support rods 25.

[0031] The outer walls of the fixed cylinder 2 and the movable cylinder 15 are respectively provided with multiple through slots. The first arc-shaped spring plate 10 and the second arc-shaped spring plate 14 pass through the through slots and pass through the outer walls of the fixed cylinder 2 and the movable cylinder 15 respectively. The first arc-shaped spring plate 10 and the second arc-shaped spring plate 14 are inclined in opposite directions. A second friction block 13 is fixed to one end of the second arc-shaped spring plate 14. An air bag 8 is fixed to one end of the first arc-shaped spring plate 10. A first friction block 7 is fixed to one side of the air bag 8. A cylinder 29 is fixed to the outer wall of the first connecting plate 32. The output shaft of the cylinder 29 is fixed to one side of the outer wall of the second connecting plate 30.

[0032] The airbag 8 is connected to the input end of the cylinder 29 through an air supply pipe. The outer walls on both sides of the first friction block 7 are respectively fixed with a stop block 9, and the outer wall of the fixed cylinder 2 is fixed with multiple sets of stop rods 6.

[0033] Multiple telescopic rods 4 are fixed to the outer walls of the fixed frame 3 and the movable cylinder 15, and the telescopic ends of the telescopic rods 4 are rotatably connected to pulleys 5.

[0034] Multiple detection cameras 21 are fixed to one outer wall of the fixed cylinder 2;

[0035] First, the staff adjusts the extension length of the pulley 5 using the telescopic rod 4 according to the inner diameter of the pipe to be tested. Then, the annular cleaning brush 17 corresponding to the inner diameter is fixed to the outer wall of the internal gear ring 26 using screws via the support rod 25. The entire testing device is then placed inside the pipe. The motor 1 is then controlled to drive the rotating shaft 16 to rotate counterclockwise by a corresponding angle. When the rotating shaft 16 rotates, it drives the first mounting block 35 and the second mounting block 24 connected to the outer wall to rotate simultaneously. The first arc-shaped spring plate 10 on the outer wall of the first mounting block 35 extends towards the outer wall of the fixed cylinder 2 during rotation. As one end of the first arc-shaped spring plate 10 extends outward, the first friction block 7 located at one end of the first arc-shaped spring plate 10 contacts the inner wall of the pipe. At this time, the first friction block 7 can... The airbag 8 on one side is continuously squeezed, thereby forcing the gas inside the airbag 8 into the cylinder 29. At the same time, the multiple second arc-shaped spring plates 14 on the outer wall of the second mounting block 24 will rotate and retract into the movable cylinder 15, thereby moving the second friction block 13 away from the inner wall of the pipe. This allows the inflated cylinder 29 to stably push the movable cylinder 15 forward under the support of the telescopic rod 4 and the pulley 5. At this time, the fixed cylinder 2 will be stably supported on the inner wall of the pipe under the action of the friction between the first friction block 7 and the inner wall of the pipe. This allows the movable cylinder 15 to move forward a corresponding distance, while the annular cleaning brush 17 on the outer wall of the movable cylinder 15 cleans the inner wall of the pipe.

[0036] Then, the control motor 1 drives the rotating shaft 16 to rotate clockwise. At this time, the second arc-shaped spring plate 14 on the outer wall of the second mounting block 24 will continuously extend outward, so that the second friction block 13 at one end of the second arc-shaped spring plate 14 will abut against the inner wall of the pipe. At the same time, the multiple first arc-shaped spring plates 10 on the outer wall of the first mounting block 35 will retract inward, so as to take the first friction block 7 away from the inner wall of the pipe. As the first arc-shaped spring plate 10 drives the airbag 8 and the first friction block 7 on the outer wall to fall continuously, the blocks 9 on both sides of the first friction block 7 will contact the stop bar 6. Thus, under the obstruction of the stop bar 6 and the block 9, the airbag 8 that follows the first arc-shaped spring plate 10 to fall continuously will be stretched. Thus, the gas filled into the cylinder 29 will be drawn back into the airbag 8 through the airbag 8. At this time, the entire fixed cylinder 2 will move forward a corresponding distance under the traction of the cylinder 29 when it is retracted, so that the multiple detection cameras 21 on the outer wall of the fixed cylinder 2 will move to the bottom of the inner wall of the pipe after the previous annular cleaning brush 17 has cleaned it, and take pictures of the inner wall of the pipe for detection.

[0037] In this invention, the motor 1 only needs to drive the rotating shaft 16 to rotate clockwise and counterclockwise alternately by corresponding angles to drive the movable cylinder 15 and the fixed cylinder 2 to move forward steadily on the inner wall of the pipe. At the same time, the annular cleaning brush 17 set on the outer wall of the movable cylinder 15 can continuously clean the inner wall of the pipe as the movable cylinder 15 moves forward. This allows the multiple detection cameras 21 located on one side of the fixed cylinder 2 to capture the real condition of the inner wall of the pipe after the attachments are removed. Thus, with only one motor, the detection device can be driven to move steadily forward on the inner wall of the pipe while continuously cleaning the inner wall of the pipe, improving the accuracy of the inner wall detection of the pipe.

[0038] like Figure 1-6 As shown, multiple fixed tubes 33 are fixed to the inner wall of the fixed cylinder 2, and screw 31 and multiple guide rods 18 are fixed to the inner wall of the fixed tubes 33 respectively. Multiple guide tubes 22 are fixed to the inner wall of the movable cylinder 15, and the guide tubes 22 are slidably connected to the outer walls of the guide rods 18 and screw 31 respectively.

[0039] A sliding sleeve 36 is fixed to one side of the outer wall of the guide tube 22. The inner wall of the sliding sleeve 36 is slidably connected to the outer wall of the guide rod 18. Multiple connecting rods 38 are fixed to the outer wall of the sliding sleeve 36. One end of the connecting rod 38 is rotatably connected to an internal threaded sleeve 39 through a bearing. The internal threaded sleeve 39 is threadedly connected to the outer wall of the lead screw 31.

[0040] Gears 37 are fixed to the outer wall of the internal threaded sleeve 39. Multiple gears 37 are rotatably connected to the outer wall of the sliding sleeve 36 through bearings. The gears 37 mesh with the internal gear ring 26. When the cylinder 29 pushes the movable cylinder 15 to move back and forth on one side of the fixed cylinder 2, it will drive the internal threaded sleeve 39 to move back and forth on the outer wall of the lead screw 31. This will drive the gears 37 on the outer wall of the internal threaded sleeve 39 to rotate through the thread. When the gears 37 rotate, they will drive the internal gear ring 26 meshing with the outer wall to rotate under the support and guidance of the multiple gears 37. This allows the annular cleaning brush 17 to rotate simultaneously while moving forward to clean the inner wall of the pipe, thereby improving the cleaning effect of the annular cleaning brush 17 on the inner wall of the pipe.

[0041] At the same time, when the movable cylinder 15 moves forward under the push of the cylinder 29, the guide tube 22 located on the inner wall of the movable cylinder 15 will also slide back and forth on the outer wall of the guide rod 18, thereby guiding and supporting the movable cylinder 15 as a whole and improving the stability of the overall structure of the detection device.

[0042] like Figure 1As shown, a stretchable shielding strip 12 is fixed to one side of the outer wall of the connecting rod 38, and a baffle 11 is fixed to one side of the outer wall of the stretchable shielding strip 12. The outer wall of the baffle 11 is fixed to one side of the outer wall of the fixed cylinder 2. By installing multiple shielding structures composed of stretchable shielding strips 12 and baffles 11 between the movable cylinder 15 and the fixed cylinder 2, the guide rod 18 and the lead screw 31 can be shielded without affecting the relative movement between the movable cylinder 15 and the fixed cylinder 2, thus preventing dust particles and other substances swept by the annular cleaning brush 17 from falling onto the outer walls of the guide rod 18 and the lead screw 31.

[0043] In this embodiment, during use, the operator first adjusts the extension length of the pulley 5 according to the inner diameter of the pipe to be tested using the telescopic rod 4. Then, the annular cleaning brush 17 corresponding to the inner diameter is fixed to the outer wall of the internal gear ring 26 using screws via the support rod 25. The entire testing device is then placed inside the pipe. The motor 1 is then controlled to drive the rotating shaft 16 to rotate counterclockwise by a corresponding angle. When the rotating shaft 16 rotates, it drives the first mounting block 35 and the second mounting block 24 connected to the outer wall to rotate simultaneously. The first arc-shaped spring plate 10 on the outer wall of the first mounting block 35 extends towards the outer wall of the fixed cylinder 2 during rotation. As one end of the first arc-shaped spring plate 10 extends outwards, the first friction block 7 located at one end of the first arc-shaped spring plate 10 contacts the inner wall of the pipe. At this time, the first... The friction block 7 can continuously squeeze the airbag 8 on one side, thereby squeezing the gas inside the airbag 8 into the cylinder 29. At the same time, the multiple second arc-shaped spring plates 14 on the outer wall of the second mounting block 24 will rotate and retract into the movable cylinder 15, thereby moving the second friction block 13 away from the inner wall of the pipe. This allows the inflated cylinder 29 to stably push the movable cylinder 15 forward under the support of the telescopic rod 4 and the pulley 5. At this time, the fixed cylinder 2 will be stably supported on the inner wall of the pipe under the action of the friction between the first friction block 7 and the inner wall of the pipe. This allows the movable cylinder 15 to move forward a corresponding distance while the annular cleaning brush 17 on the outer wall of the movable cylinder 15 cleans the inner wall of the pipe.

[0044] Then, the control motor 1 drives the rotating shaft 16 to rotate clockwise. At this time, the second arc-shaped spring plate 14 on the outer wall of the second mounting block 24 will continuously extend outward, so that the second friction block 13 at one end of the second arc-shaped spring plate 14 abuts against the inner wall of the pipe. At the same time, the multiple first arc-shaped spring plates 10 on the outer wall of the first mounting block 35 will retract inward, so as to take the first friction block 7 away from the inner wall of the pipe. As the first arc-shaped spring plate 10 drives the airbag 8 and the first friction block 7 on the outer wall to fall continuously, the blocks 9 on both sides of the first friction block 7 will contact the stop bar 6. Thus, under the obstruction of the stop bar 6 and the block 9, the airbag 8 that follows the first arc-shaped spring plate 10 to fall continuously will be stretched. Thus, the gas filled into the cylinder 29 will be drawn back into the airbag 8 through the airbag 8. At this time, the entire fixed cylinder 2 will move forward a corresponding distance under the traction of the cylinder 29 when it is retracted, so that the multiple detection cameras 21 on the outer wall of the fixed cylinder 2 will move to the bottom of the inner wall of the pipe after the previous annular cleaning brush 17 has cleaned it, and take pictures of the inner wall of the pipe for detection.

[0045] Example 2: A device for detecting the inner wall of a delivery pipeline, such as Figure 1 As shown, this embodiment makes the following improvements based on embodiment 1: a plurality of connecting frames 19 are fixed on one side of the outer wall of the connecting rod 38, and a brush 20 is fixed on one side of the outer wall of the connecting frame 19; the brush 20 can move back and forth with the movable cylinder 15 on one side of the fixed cylinder 2. Each time it moves back and forth, the brush 20 will pass through the lens of the detection camera 21, thereby sweeping away the dust attached to the lens of the detection camera 21 and improving the clarity of the detection camera 21.

[0046] In this embodiment, the brush 20 can move back and forth along the movable cylinder 15 on one side of the fixed cylinder 2. Each time it moves back and forth, the brush 20 will pass through the lens of the detection camera 21, thereby sweeping away the dust attached to the lens of the detection camera 21.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for detecting the inner wall of a conveying pipeline, comprising a motor (1), characterized in that, The motor (1) is fixed with a fixing frame (3) on its outer wall. A fixing cylinder (2) is fixed with the outer wall of the fixing frame (3). A first connecting plate (32) is fixed with one side of the outer wall of the fixing cylinder (2) and the fixing frame (3). A first limiting ring (34) is slidably connected to the inner wall of the first connecting plate (32). A first mounting block (35) is fixed with the outer wall of the first limiting ring (34). The output shaft of the motor (1) is connected to a rotating shaft (16) through a coupling. The first mounting block (35) is fixed to the outer wall of the rotating shaft (16). A second mounting block (24) is slidably connected to the outer wall of the rotating shaft (16). The first mounting block (35) and the second mounting block (24) are connected to each other. Multiple first arc-shaped spring plates (10) and second arc-shaped spring plates (14) are fixed to the wall respectively. Second limiting rings (23) are fixed to the outer walls on both sides of the second mounting block (24). Second connecting plate (30) is slidably connected to the outer wall of the second limiting ring (23). Movable cylinder (15) is fixed to the outer wall of the second connecting plate (30). Support ring (28) is fixed to the outer wall of the movable cylinder (15). Guide ring (27) is slidably connected to the outer wall of the support ring (28). Inner tooth ring (26) is fixed to the outer wall of the guide ring (27). Multiple support rods (25) are fixed to the outer wall of the inner tooth ring (26). Annular cleaning brush (17) is fixed to the outer wall of the support rod (25). The outer walls of the fixed cylinder (2) and the movable cylinder (15) are respectively provided with multiple through slots. The first arc-shaped spring plate (10) and the second arc-shaped spring plate (14) pass through the through slots and pass through the outer walls of the fixed cylinder (2) and the movable cylinder (15) respectively. The first arc-shaped spring plate (10) and the second arc-shaped spring plate (14) are inclined in opposite directions. A second friction block (13) is fixed at one end of the second arc-shaped spring plate (14). An air bag (8) is fixed at one end of the first arc-shaped spring plate (10). A first friction block (7) is fixed on one side of the air bag (8). A cylinder (29) is fixed on the outer wall of the first connecting plate (32). The output shaft of the cylinder (29) is fixed on one side of the outer wall of the second connecting plate (30). Multiple telescopic rods (4) are fixed to the outer walls of the fixed frame (3) and the movable cylinder (15), and the telescopic ends of the telescopic rods (4) are rotatably connected to pulleys (5). Multiple detection cameras (21) are fixed to one side of the outer wall of the fixed cylinder (2).

2. The pipeline inner wall detection device according to claim 1, characterized in that, The airbag (8) is connected to the input end of the cylinder (29) through the air supply pipeline. The outer walls of the first friction block (7) are respectively fixed with blocks (9), and the outer wall of the fixed cylinder (2) is fixed with multiple sets of stops (6).

3. The pipeline inner wall detection device according to claim 2, characterized in that, The inner wall of the fixed cylinder (2) is fixed with multiple fixed tubes (33), and the inner wall of the fixed tubes (33) is fixed with screws (31) and multiple guide rods (18). The inner wall of the movable cylinder (15) is fixed with multiple guide tubes (22), and the guide tubes (22) are slidably connected to the outer walls of the guide rods (18) and screws (31).

4. The pipeline inner wall detection device according to claim 3, characterized in that, A sliding sleeve (36) is fixed on one side of the outer wall of the guide tube (22). The inner wall of the sliding sleeve (36) is slidably connected to the outer wall of the guide rod (18). Multiple connecting rods (38) are fixed on the outer wall of the sliding sleeve (36). One end of the connecting rod (38) is rotatably connected to an internal threaded sleeve (39) through a bearing. The internal threaded sleeve (39) is threadedly connected to the outer wall of the lead screw (31).

5. The pipeline inner wall detection device according to claim 4, characterized in that, The outer wall of the internal threaded sleeve (39) is fixed with a gear (37), and multiple gears (37) are rotatably connected to the outer wall of the sliding sleeve (36) through bearings. The gears (37) mesh with the internal gear ring (26).

6. The pipeline inner wall detection device according to claim 4, characterized in that, A stretchable shielding strip (12) is fixed to one side of the outer wall of the connecting rod (38), and a baffle (11) is fixed to one side of the outer wall of the stretchable shielding strip (12). The outer wall of the baffle (11) is fixed to one side of the outer wall of the fixed cylinder (2).

7. The pipeline inner wall detection device according to claim 6, characterized in that, Multiple connecting frames (19) are fixed to one side of the outer wall of the connecting rod (38), and a brush (20) is fixed to one side of the outer wall of the connecting frame (19).

Images