Conveying pipeline inner wall detection device

Abstract

The invention discloses a conveying pipeline inner wall detection device, and relates to the technical field of pipeline inner wall detection. The problems that attachments on the inner wall of a pipeline cannot be quickly cleaned, normal shooting and detection of a detection camera on the inner wall of the pipeline are affected, and the detection result of the inner wall of the pipeline is not accurate enough are solved. The device specifically comprises a motor, a fixing frame is fixed to the outer wall of the motor, a fixing cylinder is fixed to the outer wall of the fixing frame, first connecting plates are fixed to the outer wall of one side of the fixing cylinder and the outer wall of one side of the fixing frame respectively, first limiting rings are slidably connected to the inner walls of the first connecting plates, and first mounting blocks are fixed to the outer walls of the first limiting rings; the first mounting block is fixed to the outer wall of the rotating shaft, and the outer wall of the rotating shaft is slidably connected with a second mounting block. On the premise that only one motor is used, the detection device can be driven to stably advance on the inner wall of the pipeline, meanwhile, the inner wall of the pipeline is continuously cleaned, and the detection accuracy of the inner wall of the pipeline is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline inner wall detection, and particularly to a detection device for the inner wall of a conveying pipeline. Background Art

[0002] A conveying pipeline is a device connected by pipelines, pipe connectors, valves, etc. for conveying gases, liquids, or fluids with solid particles. In order to improve the efficiency and safety of pipeline transportation, it is necessary to regularly observe and detect the inner wall of the conveying pipeline, observe the corrosion, breakage, and cracking of the inner wall of the pipeline, as well as the connection conditions of each pipeline connection part. At this time, a corresponding detection device for the inner wall of the pipeline is required to detect the inner wall of the corresponding pipeline.

[0003] After retrieval, a patent with the Chinese patent application number CN202211169620.9 discloses a self-stabilizing pipeline inner wall detection robot, including a traveling component and a detection main body component. The traveling component includes a traveling cylindrical shell, and the detection main body component includes a detection cylindrical outer shell. However, since the above technical solution does not provide a corresponding mechanism for cleaning the inner wall of the pipeline, there are still many attachments on the inner wall of the conveying pipeline. These attachments will block the inner wall of the pipeline, affecting the normal shooting and detection of the inner wall of the pipeline by the detection camera, resulting in inaccurate detection results of the inner wall of the pipeline. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a detection device for the inner wall of a conveying pipeline.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A detection device for the inner wall of a conveying pipeline 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 respectively fixed to the outer walls of the fixing cylinder and the fixing frame on one side. A first limiting ring is slidably connected to the inner wall of the first connecting plate. 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 through a coupling. The first mounting block is fixed to the outer wall of the rotating shaft. A second mounting block is slidably connected to the outer wall of the rotating shaft. A plurality of first arc-shaped elastic plates and second arc-shaped elastic plates are respectively fixed to the outer walls of the first mounting block and the second mounting block. Second limiting rings are respectively fixed to the outer walls on both sides of the second mounting block. A second connecting plate is slidably connected to the outer wall of the second limiting ring. A movable cylinder is fixed to the outer wall of the second connecting plate. A support ring is fixed to the outer wall of the movable cylinder. A guiding ring is slidably connected to the outer wall of the support ring. A plurality of support rods are fixed to the outer wall of the guiding ring. A circular cleaning brush is fixed to the outer wall of the support rod.

[0007] Preferably, a plurality of through grooves are respectively formed in the outer walls of the fixed cylinder and the movable cylinder. The first arc-shaped elastic plate and the second arc-shaped elastic plate respectively penetrate through the outer walls of the fixed cylinder and the movable cylinder through the through grooves. The first arc-shaped elastic plate and the second arc-shaped elastic plate are inclined in opposite directions. One end of the second arc-shaped elastic plate is fixed with a second friction block, one end of the first arc-shaped elastic plate is fixed with an airbag, one side of the airbag is fixed with a first friction block, a cylinder is fixed on the outer wall of the first connecting plate, and the output shaft of the cylinder is fixed on one outer wall of the second connecting plate.

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

[0009] More preferably, a plurality of telescopic rods are respectively fixed on the outer walls of the fixed frame and the movable cylinder. The telescopic ends of the telescopic rods are rotatably connected with pulleys, and a plurality of detection cameras are fixed on one outer wall of the fixed cylinder.

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

[0011] As a further preferred embodiment of the present invention: A sliding sleeve is fixed on one outer wall of the guide pipe. 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 on the outer wall of the sliding sleeve. One end of the connecting rod is rotatably connected with an internally threaded sleeve through a bearing. The internally threaded sleeve is threadedly connected to the outer wall of the lead screw.

[0012] As a still further solution of the present invention: A gear is fixed on the outer wall of the internally threaded sleeve. A plurality of gears are respectively rotatably connected to the outer wall of the sliding sleeve through bearings. The gears are meshed with an internal gear ring.

[0013] Based on the foregoing solution: A stretchable shielding belt is fixed on one outer wall of the connecting rod. A baffle is fixed on one outer wall of the stretchable shielding belt. One outer wall of the baffle is fixed on one outer wall of the fixed cylinder.

[0014] Preferably based on the foregoing solution: A plurality of connecting frames are fixed on one outer wall of the connecting rod. A brush is fixed on one outer wall of the connecting frame.

[0015] The beneficial effects of the present invention are:

[0016] 1. The motor in the present invention only needs to drive the rotating shaft to rotate alternately clockwise and counterclockwise at corresponding angles, so as to drive the movable cylinder and the fixed cylinder to move forward stably on the inner wall of the pipeline. At the same time, the annular cleaning brush arranged on the outer wall of the movable cylinder can continuously clean the inner wall of the pipeline when the movable cylinder moves forward, so that the multiple detection cameras located on one side of the fixed cylinder can capture the real situation of the inner wall of the pipeline after the attachments are removed. Therefore, under the premise of using only one motor, the detection device can be driven to stably move forward on the inner wall of the pipeline while continuously cleaning the inner wall of the pipeline, thereby improving the accuracy of the detection of the inner wall of the pipeline.

[0017] 2. As one end of the first arc-shaped spring plate continues to extend 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 to squeeze the gas inside the airbag into the cylinder. At the same time, the multiple second arc-shaped spring plates on the outer wall of the second mounting block will shrink toward the inside of the movable cylinder with the rotation, so that the second arc-shaped spring plate and the second friction block are away from the inner wall of the pipe, so that the inflated cylinder can stably push the movable cylinder as a whole to move forward under the support of the telescopic rod and the pulley. At this time, the fixed cylinder as a whole will be stably supported on the inner wall of the pipe under the action of the friction force of the first friction block and the inner wall of the pipe, so that the movable cylinder as a whole moves forward a corresponding distance, and 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 continue to extend outward, allowing the second friction block at one end of the second arc-shaped spring plate to rest against the inner wall of the pipe. At the same time, the multiple first arc-shaped spring plates on the outer wall of the first mounting block will shrink 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 continue to fall, the blocks on both sides of the first friction block will contact the baffle rod, and under the obstruction of the baffle rod and the baffle block, the airbag that continues to fall with the first arc-shaped spring plate is stretched, and the gas filled in the cylinder is sucked back into the airbag through the airbag. At this time, the fixed cylinder as a whole will move forward a corresponding distance under the traction of the contracted cylinder, allowing the multiple detection cameras on the outer wall of the fixed cylinder to move to the bottom of the inner wall of the pipe that has been cleaned by the annular cleaning brush before, and to shoot and detect the inner wall of the pipe.

[0019] 4. When the cylinder pushes the movable cylinder to move forward and backward on one side of the fixed cylinder, it will drive the internal threaded sleeve to move forward and backward on the outer wall of the lead screw, thereby driving the gear on the outer wall of the internal threaded sleeve to rotate through the thread. When the gear rotates, it will drive the inner gear ring meshing with the outer wall to rotate under the support and guidance of multiple gears, so that the annular cleaning brush can rotate at the same time 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 on one side of the fixed cylinder following the moving cylinder. Each time it moves back and forth, the brush will pass through the lens part of the detection camera, thereby sweeping away the dust adhering to the lens of the detection camera and improving the clarity of the detection camera for shooting and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 6 is a front view structural schematic diagram of a detection device for the inner wall of a conveying pipeline proposed by the present invention;

[0022] Figure 2 FIG. 10 is a side view structural schematic diagram of a detection device for the inner wall of a conveying pipeline proposed by the present invention;

[0023] Figure 3 FIG. 14 is a structural schematic diagram of the fixed cylinder and the moving cylinder of a detection device for the inner wall of a conveying pipeline proposed by the present invention;

[0024] Figure 4 FIG. 18 is a structural schematic diagram of the first mounting block of a detection device for the inner wall of a conveying pipeline proposed by the present invention;

[0025] Figure 5 FIG. 22 is a structural schematic diagram of the second mounting block of a detection device for the inner wall of a conveying pipeline proposed by the present invention;

[0026] Figure 6 FIG. 26 is a structural schematic diagram of the fixed cylinder of a detection device for the inner wall of a conveying pipeline proposed by the present invention.

[0027] In the figure: 1 motor, 2 fixed cylinder, 3 fixed frame, 4 telescopic rod, 5 pulley, 6 stop bar, 7 first friction block, 8 airbag, 9 stop block, 10 first arc-shaped spring plate, 11 baffle, 12 stretchable shielding belt, 13 second friction block, 14 second arc-shaped spring plate, 15 moving cylinder, 16 rotating shaft, 17 annular cleaning brush, 18 guide rod, 19 connecting frame, 20 brush, 21 detection camera, 22 guide pipe, 23 second limit 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 pipe, 34 first limit ring, 35 first mounting block, 36 sliding sleeve, 37 gear, 38 connecting rod, 39 internal thread sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0030] Example 1:

[0031] An inner wall detection device for a conveying pipeline, as Figure 1-6 shown, includes a motor 1. A fixing frame 3 is fixed to the outer wall of the motor 1. A fixing cylinder 2 is fixed to the outer wall of the fixing frame 3. First connecting plates 32 are respectively fixed to one side outer walls 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 to 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. A plurality of first arc-shaped elastic plates 10 and second arc-shaped elastic plates 14 are respectively fixed to the outer walls of the first mounting block 35 and the second mounting block 24. Second limiting rings 23 are respectively fixed to both side outer walls of the second mounting block 24. 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 guiding ring 27 is slidably connected to the outer wall of the support ring 28. A plurality of support rods 25 are fixed to the outer wall of the guiding ring 27. A circular cleaning brush 17 is fixed to the outer wall of the support rod 25;

[0032] A plurality of through grooves are respectively formed in the outer walls of the fixing cylinder 2 and the movable cylinder 15. The first arc-shaped elastic plates 10 and the second arc-shaped elastic plates 14 respectively penetrate through the outer walls of the fixing cylinder 2 and the movable cylinder 15 through the through grooves. The first arc-shaped elastic plates 10 and the second arc-shaped elastic plates 14 are inclined in opposite directions. A second friction block 13 is fixed to one end of the second arc-shaped elastic plate 14. An airbag 8 is fixed to one end of the first arc-shaped elastic plate 10. A first friction block 7 is fixed to one side of the airbag 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 outer wall of the second connecting plate 30;

[0033] The airbag 8 is connected to the input end of the cylinder 29 through an air pipeline. Stopping blocks 9 are respectively fixed to both side outer walls of the first friction block 7. Multiple groups of stopping rods 6 are fixed to the outer wall of the fixing cylinder 2;

[0034] A plurality of telescopic rods 4 are respectively fixed to the outer walls of the fixing frame 3 and the movable cylinder 15. The telescopic ends of the telescopic rods 4 are rotatably connected with pulleys 5.

[0035] A plurality of detection cameras 21 are fixed to one side outer wall of the fixing cylinder 2;

[0036] First, the staff adjusts the length of the pulley 5 extended by the telescopic rod 4 according to the inner diameter of the pipeline to be measured. Subsequently, the annular cleaning brush 17 corresponding to the inner diameter is fixed on the outer wall of the internal gear ring 26 through the support rod 25 by screws. Then, the whole detection device is placed into the pipeline. Subsequently, the motor 1 is controlled to drive the rotating shaft 16 to rotate counterclockwise by a corresponding angle. When the rotating shaft 16 rotates, it will drive the first mounting block 35 and the second mounting block 24 connected to the outer wall to rotate simultaneously. The first arc-shaped elastic plate 10 on the outer wall of the first mounting block 35 will extend outwards towards the outer wall of the fixed cylinder 2 during rotation. As one end of the first arc-shaped elastic plate 10 continuously extends outwards, the first friction block 7 located at one end of the first arc-shaped elastic plate 10 will contact the inner wall of the pipeline. At this time, the first 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, a plurality of second arc-shaped elastic plates 14 on the outer wall of the second mounting block 24 will contract towards the inside of the movable cylinder 15 during rotation, so that the second friction block 13 outside the second arc-shaped elastic plate 14 moves away from the inner wall of the pipeline, so that the inflated cylinder 29 can stably push the whole movable cylinder 15 to move forward under the support of the telescopic rod 4 and the pulley 5. At this time, the whole fixed cylinder 2 will be stably supported on the inner wall of the pipeline under the action of the friction force between the first friction block 7 and the inner wall of the pipeline. Thus, while the whole movable cylinder 15 moves forward by a corresponding distance, the annular cleaning brush 17 on the outer wall of the movable cylinder 15 is used to clean the inner wall of the pipeline;

[0037] Subsequently, the motor 1 is controlled to drive the rotating shaft 16 to rotate clockwise. At this time, the second arc-shaped elastic plate 14 on the outer wall of the second mounting block 24 will continuously extend outwards, so that the second friction block 13 at one end of the second arc-shaped elastic plate 14 abuts against the inner wall of the pipeline. At the same time, a plurality of first arc-shaped elastic plates 10 on the outer wall of the first mounting block 35 will contract inwards, so that the first friction block 7 is taken away from the inner wall of the pipeline. As the airbag 8 and the first friction block 7 on the outer wall driven by the first arc-shaped elastic plate 10 continuously fall, the stoppers 9 on both sides of the first friction block 7 will contact the stop rod 6, so that the airbag 8 following the first arc-shaped elastic plate 10 and continuously falling is stretched under the block of the stop rod 6 and the stopper 9, so that the gas filled into the cylinder 29 is sucked back into the airbag 8 through the airbag 8. At this time, the whole fixed cylinder 2 will move forward by a corresponding distance under the traction of the cylinder 29 during contraction, so that the plurality of detection cameras 21 on the outer wall of the fixed cylinder 2 move to the bottom of the inner wall of the pipeline cleaned by the previous annular cleaning brush 17 to take pictures and detect the inner wall of the pipeline;

[0038] In the present invention, the motor 1 only needs to drive the rotating shaft 16 to continuously rotate clockwise and counterclockwise by corresponding angles alternately, so as to drive the movable cylinder 15 and the fixed cylinder 2 to move forward stably on the inner wall of the pipeline continuously. At the same time, the annular cleaning brush 17 arranged on the outer wall of the movable cylinder 15 can continuously clean the inner wall of the pipeline when the movable cylinder 15 moves forward, so that the multiple detection cameras 21 on one side of the fixed cylinder 2 can capture the real situation of the inner wall of the pipeline after removing the attachments. Thus, on the premise of only using one motor, it can drive the detection device to move forward stably on the inner wall of the pipeline and continuously clean the inner wall of the pipeline, improving the accuracy of the detection of the inner wall of the pipeline.

[0039] As Figure 1-6 shown, a plurality of fixed pipes 33 are fixed on the inner wall of the fixed cylinder 2. A lead screw 31 and a plurality of guide rods 18 are respectively fixed on the inner walls of the fixed pipes 33. A plurality of guide pipes 22 are fixed on the inner wall of the movable cylinder 15. The guide pipes 22 are respectively slidably connected to the outer walls of the guide rods 18 and the lead screw 31;

[0040] A sliding sleeve 36 is fixed on the outer wall of one side of the guide pipe 22. The inner wall of the sliding sleeve 36 is slidably connected to the outer wall of the guide rod 18. A plurality of 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 internally threaded sleeve 39 through a bearing. The internally threaded sleeve 39 is threadedly connected to the outer wall of the lead screw 31;

[0041] An internally threaded sleeve 39 is fixed on the outer wall of the internally threaded sleeve 39. A plurality of gears 37 are respectively rotatably connected to the outer wall of the sliding sleeve 36 through bearings. The gears 37 are meshed and connected to an internal gear ring 26; when the air cylinder 29 pushes the movable cylinder 15 to move back and forth on one side of the fixed cylinder 2 as a whole, it will drive the internally threaded sleeve 39 to move back and forth on the outer wall of the lead screw 31 as a whole, thereby driving the gear 37 on the outer wall of the internally threaded sleeve 39 to rotate through the thread. When the gear 37 rotates, it will drive the internally meshed internal gear ring 26 on the outer wall to rotate under the support and guidance of the plurality of gears 37, so that when the annular cleaning brush 17 moves forward to clean the inner wall of the pipeline, it can also rotate simultaneously, thereby improving the cleaning effect of the annular cleaning brush 17 on the inner wall of the pipeline.

[0042] At the same time, when the movable cylinder 15 moves forward as a whole under the push of the air cylinder 29, the guide pipe 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.

[0043] As Figure 1As shown, a stretchable shielding belt 12 is fixed to the outer wall of one side of the connecting rod 38. A baffle 11 is fixed to the outer wall of one side of the stretchable shielding belt 12, and the outer wall of one side of the baffle 11 is fixed to the outer wall of one side of the fixed cylinder 2. By installing a plurality of shielding structures composed of the stretchable shielding belt 12 and the baffle 11 between the movable cylinder 15 and the fixed cylinder 2, it is possible to shield the guide rod 18 and the lead screw 31 while not affecting the relative movement between the movable cylinder 15 and the fixed cylinder 2, and prevent substances such as dust particles swept away by the annular cleaning brush 17 from falling onto the outer walls of the guide rod 18 and the lead screw 31.

[0044] When this embodiment is in use, the staff first adjusts the length of the pulley 5 extended by the telescopic rod 4 according to the inner diameter of the pipeline to be measured. Then, the annular cleaning brush 17 with the corresponding inner diameter is fixed to the outer wall of the internal gear ring 26 through the support rod 25 by screws. Then, the entire detection device is placed into the pipeline. Subsequently, the motor 1 is controlled to drive the rotating shaft 16 to rotate counterclockwise by a corresponding angle. When the rotating shaft 16 rotates, it will drive the first mounting block 35 and the second mounting block 24 connected to the outer wall to rotate simultaneously. The first arc-shaped elastic plate 10 on the outer wall of the first mounting block 35 will extend towards the outer wall of the fixed cylinder 2 during rotation. As one end of the first arc-shaped elastic plate 10 continuously extends outwards, the first friction block 7 located at one end of the first arc-shaped elastic plate 10 will contact the inner wall of the pipeline. At this time, the first friction block 7 can continuously squeeze the airbag 8 on one side, so as to squeeze the gas inside the airbag 8 into the cylinder 29. At the same time, a plurality of second arc-shaped elastic plates 14 on the outer wall of the second mounting block 24 will rotate and contract towards the inside of the movable cylinder 15, so that the second friction block 13 outside the second arc-shaped elastic plate 14 is away from the inner wall of the pipeline, so that the inflated cylinder 29 can stably push the entire movable cylinder 15 to move forward under the support of the telescopic rod 4 and the pulley 5. At this time, the entire fixed cylinder 2 will be stably supported on the inner wall of the pipeline under the action of the friction force between the first friction block 7 and the inner wall of the pipeline, so that while the entire movable cylinder 15 moves forward by a corresponding distance, the inner wall of the pipeline is cleaned by the annular cleaning brush 17 on the outer wall of the movable cylinder 15;

[0045] Subsequently, control the motor 1 to drive the rotating shaft 16 to rotate clockwise. At this time, the second arc-shaped elastic plate 14 on the outer wall of the second mounting block 24 will continuously extend outwards, so that the second friction block 13 at one end of the second arc-shaped elastic plate 14 abuts against the inner wall of the pipeline. At the same time, multiple first arc-shaped elastic plates 10 on the outer wall of the first mounting block 35 will contract inwards, so as to drive the first friction block 7 away from the inner wall of the pipeline. As the first arc-shaped elastic plate 10 drives the airbag 8 and the first friction block 7 on the outer wall to continuously fall, the stoppers 9 on both sides of the first friction block 7 will contact the stop rod 6, so that the airbag 8 following the first arc-shaped elastic plate 10 is stretched under the blockage of the stop rod 6 and the stopper 9, so as to suck the gas filled into the cylinder 29 back into the airbag 8 through the airbag 8. At this time, the whole fixed cylinder 2 will move forward a corresponding distance under the traction of the contracting cylinder 29, so that the multiple detection cameras 21 on the outer wall of the fixed cylinder 2 move to the bottom of the inner wall of the pipeline after being cleaned by the annular cleaning brush 17 before, and photograph and detect the inner wall of the pipeline.

[0046] Embodiment 2:

[0047] An inner wall detection device for a conveying pipeline, as Figure 1 shown. The following improvements are made in this embodiment on the basis of Embodiment 1: A plurality of connecting frames 19 are fixed on the outer wall of one side of the connecting rod 38, and a brush 20 is fixed on the outer wall of one side of the connecting frame 19; the brush 20 can move back and forth on one side of the fixed cylinder 2 following the movable cylinder 15. Each time it moves back and forth, the brush 20 will pass through the lens part of the detection camera 21, so as to sweep away the dust attached to the lens of the detection camera 21 and improve the clarity of the photographing and detection of the detection camera 21.

[0048] When this embodiment is in use, the brush 20 can move back and forth on one side of the fixed cylinder 2 following the movable cylinder 15. Each time it moves back and forth, the brush 20 will pass through the lens part of the detection camera 21, so as to sweep away the dust attached to the lens of the detection camera 21.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope 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 outer wall of the motor (1) is fixed with a fixing frame (3), the outer wall of the fixing frame (3) is fixed with a fixing cylinder (2), the outer walls of the fixing cylinder (2) and one side of the fixing frame (3) are respectively fixed with a first connecting plate (32), the inner wall of the first connecting plate (32) is slidably connected with a first limiting ring (34), the outer wall of the first limiting ring (34) is fixed with a first mounting block (35), the output shaft of the motor (1) is connected with a rotating shaft (16) through a coupling, the first mounting block (35) is fixed on the outer wall of the rotating shaft (16), the outer wall of the rotating shaft (16) is slidably connected with a second mounting block (24), the first mounting block (35) and A plurality of first arc-shaped spring plates (10) and a second arc-shaped spring plate (14) are fixed to the outer wall of the second mounting block (24), a second limiting ring (23) is fixed to the outer wall of both sides of the second mounting block (24), 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 supporting ring (28) is fixed to the outer wall of the movable cylinder (15), a guiding ring (27) is slidably connected to the outer wall of the supporting ring (28), a plurality of supporting rods (25) are fixed to the outer wall of the guiding ring (27), and an annular cleaning brush (17) is fixed to the outer wall of the supporting rod (25).

2. A conveying pipeline inner wall detection device according to claim 1, characterized in that: The outer walls of the fixed cylinder (2) and the movable cylinder (15) are respectively provided with a plurality of through grooves, and the first arc-shaped spring plate (10) and the second arc-shaped spring plate (14) respectively penetrate the outer walls of the fixed cylinder (2) and the movable cylinder (15) through the through grooves, 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), and a first friction block (7) is fixed to one side of the air bag (8), and a cylinder (29) is fixed to the outer wall of the first connecting plate (32), and an output shaft of the cylinder (29) is fixed to one side of the outer wall of the second connecting plate (30).

3. A conveying pipeline inner wall detection device according to claim 2, characterized in that: The air bag (8) is connected to the input end of the cylinder (29) through an air pipeline. Blocks (9) are fixed to the outer walls of both sides of the first friction block (7), and multiple groups of block rods (6) are fixed to the outer wall of the fixed cylinder (2).

4. A conveying pipeline inner wall detection device according to claim 1, characterized in that: A plurality of telescopic rods (4) are fixed to the outer walls of the fixed frame (3) and the movable cylinder (15), respectively. The telescopic ends of the telescopic rods (4) are rotatably connected to pulleys (5). A plurality of detection cameras (21) are fixed to the outer wall of one side of the fixed cylinder (2).

5. A conveying pipeline inner wall detection device according to claim 4, characterized in that: A plurality of fixed tubes (33) are fixed on the inner wall of the fixed tube (2), a lead screw (31) and a plurality of guide rods (18) are respectively fixed on the inner wall of the fixed tube (33), a plurality of guide tubes (22) are fixed on the inner wall of the movable tube (15), and the guide tubes (22) are respectively slidably connected to the outer walls of the guide rods (18) and the lead screw (31).

6. A device for detecting inner wall of a conveying pipeline according to claim 5, characterized in that: A sliding sleeve (36) is fixed to the outer wall of one side of the guide tube (22), and the inner wall of the sliding sleeve (36) is slidably connected to the outer wall of the guide rod (18). A plurality of connecting rods (38) are fixed to the outer wall of the sliding sleeve (36), and one end of the connecting rod (38) is rotatably connected to an internal threaded sleeve (39) through a bearing, and the internal threaded sleeve (39) is connected to the outer wall of the lead screw (31) through a thread.

7. A conveying pipeline inner wall detection device according to claim 6, characterized in that: A gear (37) is fixed to the outer wall of the internal threaded sleeve (39), and a plurality of gears (37) are rotatably connected to the outer wall of the sliding sleeve (36) through bearings, and the gears (37) are meshingly connected with the inner gear ring (26).

8. A device for detecting inner wall of a conveying pipeline according to claim 6, characterized in that: A stretchable shielding belt (12) is fixed to an outer wall on one side of the connecting rod (38), a baffle (11) is fixed to an outer wall on one side of the stretchable shielding belt (12), and an outer wall on one side of the baffle (11) is fixed to an outer wall on one side of the fixed cylinder (2).

9. A conveying pipeline inner wall detection device according to claim 8, characterized in that: A plurality of connection frames (19) are fixed to the outer wall of one side of the connection rod (38), and a brush (20) is fixed to the outer wall of one side of the connection frame (19).

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