Pipeline detector

Abstract

The pipeline detector comprises a waterproof machine body, moving mechanisms capable of rotating are symmetrically installed on the two sides of the waterproof machine body, a waterproof linear module parallel to the moving mechanisms is installed at the front end of the waterproof machine body, and a dredging mechanism is installed on a moving seat of the waterproof linear module; a detection mechanism is fixedly mounted at one end of the waterproof electric push rod; the moving mechanism comprises a rotating block capable of rotating by 90 degrees, a rubber wheel is rotationally installed at one end of each supporting leg, a wheel groove is formed in the middle of each rubber wheel, a driving belt is installed on each wheel groove, and a belt wheel is installed at the end, located in the waterproof machine body, of each rotating block. A power driving mechanism used for driving the belt wheel and a rotation driving mechanism used for driving the rotating block are installed in the waterproof machine body. By adopting the pipeline detector, the waterproof machine body can be supported at the central position of the to-be-detected pipeline through the moving mechanism, the waterproof machine body does not need to climb at the inner bottom of the pipeline, and the pipeline detector can cross obstacles to move forwards and is very convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detectors, and in particular to a pipeline detector. Background Art

[0002] There are many types of pipeline detectors with many different functions. For example, pipeline detectors can determine the location and direction of pipelines, detect pipeline operating conditions, evaluate the condition of pipeline anti-corrosion layers, realize pipeline detection under trenchless conditions, monitor pipeline blockages, prevent dust explosions, monitor gas pipeline pressure, and conduct in-depth detection inside pipelines.

[0003] When going deep into the pipeline for detection, the probe of the general pipeline detector is usually carried by a robot, and is usually equipped with some unblocking equipment. If there is a blockage, it can be unblocked. However, the situation inside the pipeline cannot be determined, and the robot usually crawls at the bottom of the pipeline. The movement is too limited, and it is often difficult to go further when encountering obstacles.

[0004] To this end, we propose a pipeline detector. Summary of the invention

[0005] In view of this, the present invention provides a pipeline detector for solving the problem that the pipeline detector in the prior art is often unable to enter further into the pipeline due to obstacles when entering the pipeline.

[0006] A pipeline detector comprises a waterproof body, wherein two sides of the waterproof body are symmetrically provided with a rotatable moving mechanism, a waterproof linear module arranged in parallel with the moving mechanism is provided at the front end of the waterproof body, and a dredging mechanism is provided on the moving seat of the waterproof linear module; an observation mechanism is also provided at the front end of the waterproof body, a waterproof electric push rod is provided at the side of the waterproof body, and a detection mechanism is fixedly provided at one end of the piston rod of the waterproof electric push rod;

[0007] Among them, the moving mechanism includes a rotating block that can rotate 90°, the outer end surface of the rotating block is fixedly connected to a supporting leg, one end of the supporting leg is rotatably mounted with a rubber wheel, the middle part of the rubber wheel is provided with a wheel groove, the wheel groove is installed with a driving belt, a through hole is provided on the rotating block, one end of the rotating block located in the waterproof body is installed with a pulley, the driving belt passes through the through hole and is mounted on the pulley, and a power driving mechanism for driving the pulley and a rotation driving mechanism for driving the rotating block are installed inside the waterproof body.

[0008] Preferably, the power drive mechanism comprises a hub motor installed inside the waterproof body and a drive rod rotatably installed inside the waterproof body, the top and bottom of the hub motor are fixedly mounted with a bevel gear ring, the drive rod is mounted with a bevel gear that can mesh with the bevel gear ring, the drive rod is provided with a prism portion, a worm A is slidably mounted on the prism portion, worm wheels A are fixedly mounted at both ends of the pulley, one of the worm wheels A can directly mesh with the worm A, and the other worm wheel A can mesh with the worm wheel A after the rotating block rotates 90°, that is, the pulley can still maintain smooth transmission after the rotating block rotates 90°.

[0009] Preferably, the above-mentioned rotation drive mechanism includes a worm B and a worm wheel B rotatably installed inside the waterproof body, the worm B and the worm wheel B are meshingly connected, and a servo motor for driving the worm B is also installed inside the waterproof body. A column gear is fixedly mounted on the rotating shaft of the worm wheel B, and a gear ring is mounted on one end of the rotating block, and the gear ring is meshingly connected with the column gear; that is, when the rotating block moves smoothly, the gear ring and the column gear can also maintain smooth transmission.

[0010] Preferably, the above also includes an electric push rod B, which is fixedly installed inside the waterproof body; one end of the piston rod of the electric push rod B is fixedly connected to a strip plate, one end of the worm A is provided with an I-shaped groove, one end of the strip plate is inserted into the I-shaped groove, and the two end edges of the I-shaped groove can be respectively clamped on both sides of the gear ring; when the electric push rod B is extended, it can drive the worm A and the gear ring to translate, while the relative positions of the worm A and the worm wheel A remain unchanged.

[0011] Preferably, a spring is sleeved on the rotating block, one end of the spring is fixedly connected to one side of the gear ring, and the other end of the spring is fixedly connected to the inner wall of the shell of the waterproof body.

[0012] Preferably, a waterproof cover is provided on one end of the rotating block located inside the waterproof body, a circular opening is provided on one side of the waterproof body, the rotating block is movably installed in the circular opening, and the rotating block can slide and rotate in the circular opening, an elastic waterproof rubber tube is fixedly provided on the outer side of the circular opening, one end of the elastic waterproof rubber tube is fixedly connected to the end face of the rotating block, the elastic waterproof rubber tube can prevent water from entering the waterproof body from the gap between the circular opening and the rotating block, and does not affect the 90° rotation and sliding of the rotating block.

[0013] Preferably, the above also includes a single-chip microcomputer controller, which is installed inside the waterproof body, and the waterproof electric push rod, the hub motor, the servo motor and the electric push rod B are all controlled by the single-chip microcomputer controller.

[0014] Preferably, the tail of the waterproof body is connected to a cable via a brush, wherein the cable can provide power and transmit signals.

[0015] Preferably, the brush comprises an insulating sleeve and an insulating column, the insulating sleeve being fixedly connected through the tail of the waterproof body, an annular electrode contact being arranged inside the insulating sleeve, one end of the insulating column being fixedly connected to the cable, a waterproof bearing being fixedly sleeved on the outer side of one end of the insulating column, the waterproof bearing being fixedly inserted inside one end of the insulating sleeve, and an annular protruding electrode contact being fixedly sleeved on the upper part of the insulating column, and when the insulating column rotates in the insulating sleeve, the electrode contact can always contact with the electrode contact and conduct electricity.

[0016] Preferably, a plurality of elastic contacts integrally formed with the electrode contact sheet are arranged on the surface of the electrode contact sheet.

[0017] Implementing the embodiments of the present invention will have the following beneficial effects:

[0018] The above pipeline detector is adopted.

[0019] The waterproof body can be supported at the center of the pipe to be tested through the mobile mechanism. It does not need to crawl on the inner bottom of the pipe to be tested, and can move forward over obstacles, which is very convenient.

[0020] The mobile mechanism can not only move forward, but also rotate the supporting legs 90° and then drive the rubber wheels to rotate, so that the mobile mechanism can rotate along the cross-sectional direction inside the pipe to be tested, so that the waterproof body can be tilted or even turned over, making it easier to overcome obstacles in different conditions;

[0021] A dredging mechanism is arranged at the front end of the waterproof body, and the dredging mechanism can be translated, so as to facilitate dredging at different positions in the front, and with the rotatable moving mechanism, it can fully dredge any position inside the pipeline to be tested, which is more convenient;

[0022] A retractable detection mechanism is arranged on the side of the waterproof body, and cooperates with a rotatable moving mechanism to detect any position of the inner wall of the pipeline to be tested, especially for comprehensive flaw detection, which is easy to use;

[0023] The electric push rod B can make the moving mechanism extend outward or retract inward, and the rotation and reversing of the rubber wheel are not affected at any position of extension or retraction, so that the pipeline detector can be applied to pipelines with different inner diameters to be tested, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] in:

[0026] Figure 1 is a schematic diagram of the structure of a pipeline detector in one embodiment;

[0027] Figure 2 is a structural schematic diagram of a moving mechanism in one embodiment;

[0028] Figure 3 It is a schematic diagram of the structure in which the moving mechanism has an external elastic waterproof rubber tube in one embodiment;

[0029] Figure 4 A schematic diagram of the exploded structure of the internal parts of a waterproof body in one embodiment;

[0030] Figure 5 A schematic diagram of a structure in which one end of a rotating block has a waterproof cover in one embodiment;

[0031] Figure 6 A schematic diagram of the split structure of a brush in one embodiment;

[0032] Figure 7 Schematic diagram of the meshing structure of the worm wheel A and the worm A in one embodiment;

[0033] Figure 8 It is a schematic diagram of the structure of the worm wheel A and the worm A after the rotating block rotates 90 degrees in one embodiment;

[0034] Fig. 9 A schematic diagram of the structure of a pipeline detector inside a pipeline to be detected in one embodiment;

[0035] Fig.10 A schematic diagram of the structure of a pipeline detector rotating inside a pipeline to be detected in one embodiment;

[0036] Fig.11 It is a schematic diagram of the structure of a pipeline detector moving forward inside a pipeline to be detected in one embodiment.

[0037] Reference numerals:

[0038] 100, waterproof body; 101, observation mechanism; 102, circular mouth; 200, waterproof linear module; 201, dredging mechanism; 300, moving mechanism; 301, rubber wheel; 302, wheel groove; 303, supporting leg; 304, driving belt; 305, rotating block; 306, through hole; 307, spring; 308, gear ring; 309, pulley; 310, worm gear A; 311, elastic waterproof rubber tube; 312, waterproof cover;

[0039] 400, brush; 401, cable; 402, waterproof bearing; 403, insulating column; 404, electrode contact; 405, elastic contact; 406, insulating sleeve; 407, electrode contact;

[0040] 500, detection mechanism; 501, waterproof electric push rod;

[0041] 600, wheel hub motor; 601, bevel gear ring; 602, bevel gear; 603, driving rod; 604, prism portion; 605, worm A; 606, I-shaped groove; 607, electric push rod B; 608, strip plate; 609, prismatic hole;

[0042] 701, servo motor; 702, worm B; 703, worm wheel B; 704, column gear;

[0043] 800. Pipeline to be tested. DETAILED DESCRIPTION

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0047] Example 1

[0048] See also Figure 1-11 A pipeline detector includes a waterproof body 100, and a rotatable moving mechanism 300 is symmetrically installed on both sides of the waterproof body 100. A waterproof linear module 200 arranged in parallel with the moving mechanism 300 is installed at the front end of the waterproof body 100. The waterproof linear module 200 is provided with waterproof facilities such as a waterproof pleated rubber cover, which can be used normally underwater; a dredging mechanism 201 is installed on the moving seat of the waterproof linear module 200. When implemented, the dredging mechanism 201 can be set as a high-speed water pump to dredge through the impact of high-speed water flow, or It can be set as a manipulator, a vibrating rod or an underwater cutting machine, etc., to play a role in dredging; and the front end of the waterproof body 100 is also equipped with an observation mechanism 101, and the observation mechanism 101 can be a combination of a camera, a lighting lamp, a laser radar sensor, etc., which can play a role in detection and observation; a waterproof electric push rod 501 is installed on the side of the waterproof body 100, and a detection mechanism 500 is fixedly installed at one end of the piston rod of the waterproof electric push rod 501. The detection mechanism 500 can be an ultrasonic flaw detection sensor, a camera, etc., which plays a role in detecting and flaw detection of the inner wall of the pipeline 800 to be tested;

[0049] Among them, Figure 2 and Figure 4 As shown in , the moving mechanism 300 includes a rotating block 305 that can rotate 90°, the outer end surface of the rotating block 305 is fixedly connected to a supporting leg 303, one end of the supporting leg 303 is rotatably mounted with a rubber wheel 301, the rubber wheel 301 is elastic and can increase a higher friction force, so as to maintain stability and rotate easily; a wheel groove 302 is provided in the middle of the rubber wheel 301, a driving belt 304 is installed on the wheel groove 302, a through hole 306 is provided on the rotating block 305, a pulley 309 is installed at one end of the rotating block 305 located in the waterproof body 100, the driving belt 304 passes through the through hole 306 and is mounted on the pulley 309, and a power driving mechanism for driving the pulley 309 and a rotation driving mechanism for driving the rotating block 305 are installed inside the waterproof body 100.

[0050] Specifically, Figure 4As shown in , the power drive mechanism includes a hub motor 600 installed inside the waterproof body 100 and a drive rod 603 rotatably installed inside the waterproof body 100, the top and bottom of the hub motor 600 are fixedly mounted with a bevel gear ring 601, the drive rod 603 is mounted with a bevel gear 602 that can mesh with the bevel gear ring 601, a prism portion 604 is provided on the drive rod 603, a worm A605 is slidably mounted on the prism portion 604, wherein a prismatic hole 609 that can slidably cooperate with the prism portion 604 is provided inside the worm A605, worm wheels A310 are fixedly mounted at both ends of the pulley 309, one of the worm wheels A310 can directly mesh with the worm A605, and the other worm wheel A310 can mesh with the worm wheel A310 after the rotating block 305 rotates 90°, that is, after the rotating block 305 rotates 90°, the pulley 309 can still maintain smooth transmission. In implementation, a group of wheel hub motors 600 is provided to drive the two moving mechanisms 300 on the front side. Two groups of bevel gears 602 and driving rods 603 are provided, which are respectively located on the upper and lower sides of the wheel hub motors 600, so as to realize a dual-drive structure. The two rubber wheels 301 on the front side play a driving role, and the two rubber wheels 301 on the rear side play an auxiliary support role. Two groups of wheel hub motors 600 can also be provided, and the two wheel hub motors 600 run synchronously to realize a four-wheel drive structure. In implementation, the combination of the bevel gear ring 601 and the bevel gear 602 can also be replaced by a worm and worm gear drive structure.

[0051] like Figure 4 As shown in , the rotary drive mechanism includes a worm B702 and a worm wheel B703 rotatably mounted inside the waterproof body 100, the worm B702 and the worm wheel B703 are meshed and connected, and a servo motor 701 for driving the worm B702 is also installed inside the waterproof body 100, a column gear 704 is fixedly mounted on the rotating shaft of the worm wheel B703, a gear ring 308 is mounted on one end of the rotating block 305, and the gear ring 308 is meshed and connected with the column gear 704; that is, when the rotating block 305 moves smoothly, the gear ring 308 and the column gear 704 can also maintain smooth transmission. Among them, the servo motor 701 can accurately rotate at a fixed angle, so that the rotation angle of the rotating block 305 can be accurately controlled.

[0052] When implementing, Figure 4As shown in the figure, it also includes an electric push rod B607, which is fixedly installed inside the waterproof body 100; one end of the piston rod of the electric push rod B607 is fixedly connected to a strip plate 608, one end of the worm A605 is provided with an I-shaped groove 606, one end of the strip plate 608 is inserted into the I-shaped groove 606, and the two end edges of the I-shaped groove 606 can be respectively clamped on both sides of the gear ring 308; when the electric push rod B607 is extended, it can drive the worm A605 and the gear ring 308 to translate, while the relative position of the worm A605 and the worm wheel A310 remains unchanged.

[0053] The rotating block 305 is provided with a spring 307, one end of the spring 307 is fixedly connected to one side of the gear ring 308, and the other end of the spring 307 is fixedly connected to the inner wall of the shell of the waterproof body 100. Since the strip plate 608 and the side wall of the I-shaped groove 606 are in abutting connection, the spring 307 can play a role of tightening and buffering.

[0054] During implementation, the waterproofing problem needs to be fully considered: a waterproof cover 312 is provided on one end of the rotating block 305 located inside the waterproof body 100, a circular opening 102 is provided on one side of the waterproof body 100, the rotating block 305 is movably installed in the circular opening 102, and the rotating block 305 can slide and rotate in the circular opening 102, an elastic waterproof rubber tube 311 is fixedly provided on the outer side of the circular opening 102, one end of the elastic waterproof rubber tube 311 is fixedly connected to the end face of the rotating block 305, and the elastic waterproof rubber tube 311 can prevent water from entering the waterproof body 100 from the gap between the circular opening 102 and the rotating block 305, and does not affect the 90° rotation and sliding of the rotating block 305. Sealing should be paid attention to in all parts of the waterproof body 100 to prevent water from entering the interior of the waterproof body 100.

[0055] Other components include a single-chip microcomputer controller, which is installed inside the waterproof body 100. The waterproof electric push rod 501, the wheel hub motor 600, the servo motor 701 and the electric push rod B607 are all controlled by the single-chip microcomputer controller. The single-chip microcomputer controller can better coordinate and control various electrical components for easy operation; at the same time, the single-chip microcomputer controller can also collect feedback signals for transmission.

[0056] The application is easy to use. When using it:

[0057] The hub motor 600 can drive the rubber wheel 301 to rotate and drive; Fig.11 As shown, the rotation of the rubber wheel 301 can make the waterproof body 100 move forward or backward inside the pipe 800 to be tested;

[0058] The servo motor 701 can control the moving mechanism 300 to rotate 90° and adjust the driving direction; Fig. 9 and Fig.10 As shown in , after the moving mechanism 300 rotates 90°, the hub motor 600 is controlled to drive the rubber wheel 301 to tilt on the inner wall of the pipe 800 to be tested;

[0059] During implementation, other auxiliary detection equipment may be installed on the waterproof body 100, which is very convenient.

[0060] Example 2

[0061] Different from the first embodiment, the tail of the waterproof body 100 is connected to a cable 401 through a brush 400, wherein the cable 401 can be used for power supply and signal transmission. Among them, through the design of the brush 400, no matter how the waterproof body 100 is tilted or rotated, it will not cause the cable 401 to be wound, which is very convenient.

[0062] Specifically, Figure 6 As shown in , the brush 400 includes an insulating sleeve 406 and an insulating column 403. The insulating sleeve 406 is fixedly connected to the tail of the waterproof body 100. An annular electrode contact 407 is arranged inside the insulating sleeve 406. One end of the insulating column 403 is fixedly connected to the cable 401. A waterproof bearing 402 is fixedly sleeved on the outer side of one end of the insulating column 403. The waterproof bearing 402 is fixedly inserted inside one end of the insulating sleeve 406. The upper part of the insulating column 403 is fixedly sleeved with an annular protruding electrode contact piece 404. When the insulating column 403 rotates in the insulating sleeve 406, the electrode contact piece 404 can always contact with the electrode contact 407 and conduct electricity. The electrode contact pieces 404 are respectively connected to each branch line inside the cable 401; and the electrode contacts 407 are respectively connected to each interface of the single-chip controller through wires.

[0063] The surface of the electrode contact sheet 404 is provided with a plurality of elastic contacts 405 which are integrally provided with the electrode contact sheet 404. The elastic contacts 405 maintain elastic contact to avoid poor contact.

[0064] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A pipeline detector, characterized in that: include: A waterproof body (100), wherein two sides of the waterproof body (100) are symmetrically provided with rotatable moving mechanisms (300), a waterproof linear module (200) arranged in parallel with the moving mechanism (300) is provided at the front end of the waterproof body (100), and a dredging mechanism (201) is provided on the moving seat of the waterproof linear module (200); an observation mechanism (101) is also provided at the front end of the waterproof body (100), a waterproof electric push rod (501) is provided on the side of the waterproof body (100), and a detection mechanism (500) is fixedly provided on one end of the piston rod of the waterproof electric push rod (501); The moving mechanism (300) comprises a rotating block (305) capable of rotating 90 degrees, the outer end surface of the rotating block (305) is fixedly connected to a supporting leg (303), one end of the supporting leg (303) is rotatably mounted with a rubber wheel (301), a wheel groove (302) is provided in the middle of the rubber wheel (301), a driving belt (304) is mounted on the wheel groove (302), a through hole (306) is provided on the rotating block (305), one end of the rotating block (305) located inside the waterproof body (100) is mounted with a pulley (309), the driving belt (304) passes through the through hole (306) and is mounted on the pulley (309), and a power driving mechanism for driving the pulley (309) and a rotation driving mechanism for driving the rotating block (305) are mounted inside the waterproof body (100).

2. A pipeline detector according to claim 1, characterized in that: The power drive mechanism comprises a wheel hub motor (600) installed inside the waterproof body (100) and a drive rod (603) rotatably installed inside the waterproof body (100); a bevel gear ring (601) is fixedly mounted on the top and bottom of the wheel hub motor (600); a bevel gear (602) capable of meshing with the bevel gear ring (601) is installed on the drive rod (603); and a prism portion (604) is provided on the drive rod (603). A worm A (605) is slidably mounted on the prism portion (604), and worm wheels A (310) are fixedly mounted on both ends of the pulley (309), one of the worm wheels A (310) can directly mesh with the worm A (605), and the other worm wheel A (310) can mesh with the worm wheel A (310) after the rotating block (305) rotates 90°, that is, after the rotating block (305) rotates 90°, the pulley (309) can still maintain smooth transmission.

3. A pipeline detector according to claim 2, characterized in that: The rotary drive mechanism comprises a worm gear B (702) and a worm wheel B (703) rotatably mounted inside the waterproof body (100); the worm gear B (702) and the worm wheel B (703) are meshingly connected; a servo motor (701) for driving the worm gear B (702) is also mounted inside the waterproof body (100); a column gear (704) is fixedly mounted on the rotating shaft of the worm wheel B (703); a gear ring (308) is mounted on one end of the rotating block (305); the gear ring (308) is meshingly connected with the column gear (704); that is, when the rotating block (305) moves smoothly, the gear ring (308) and the column gear (704) can also maintain smooth transmission.

4. A pipeline detector according to claim 3, characterized in that: It also includes an electric push rod B (607), which is fixedly installed inside the waterproof body (100); one end of the piston rod of the electric push rod B (607) is fixedly connected to a strip plate (608), one end of the worm A (605) is provided with an I-shaped groove (606), one end of the strip plate (608) is inserted into the I-shaped groove (606), and the two end edges of the I-shaped groove (606) can be respectively clamped on both sides of the gear ring (308); when the electric push rod B (607) is extended, it can drive the worm A (605) and the gear ring (308) to translate, while the relative position of the worm A (605) and the worm wheel A (310) remains unchanged.

5. A pipeline detector according to claim 4, characterized in that: A spring (307) is sleeved on the rotating block (305), one end of the spring (307) is fixedly connected to one side of the gear ring (308), and the other end of the spring (307) is fixedly connected to the inner wall of the shell of the waterproof body (100).

6. A pipeline detector according to claim 5, characterized in that: A waterproof cover (312) is sleeved on one end of the rotating block (305) located inside the waterproof body (100); a circular opening (102) is opened on one side of the waterproof body (100); the rotating block (305) is movably installed in the circular opening (102), and the rotating block (305) can slide and rotate in the circular opening (102); an elastic waterproof rubber tube (311) is fixedly sleeved on the outer side of the circular opening (102); one end of the elastic waterproof rubber tube (311) is fixedly connected to the end surface of the rotating block (305); the elastic waterproof rubber tube (311) can prevent water from entering the waterproof body (100) from the gap between the circular opening (102) and the rotating block (305), and does not affect the 90° rotation and sliding of the rotating block (305).

7. A pipeline detector according to claim 6, characterized in that: It also includes a single-chip microcomputer controller, which is installed inside the waterproof body (100), and the waterproof electric push rod (501), the wheel hub motor (600), the servo motor (701) and the electric push rod B (607) are all controlled by the single-chip microcomputer controller.

8. A pipeline detector according to any one of claims 1 to 7, characterized in that: The tail of the waterproof body (100) is connected to a cable (401) via a brush (400), wherein the cable (401) is capable of powering and transmitting signals.

9. A pipeline detector according to claim 8, characterized in that: The brush (400) comprises an insulating sleeve (406) and an insulating column (403); the insulating sleeve (406) is fixedly connected to the rear end of the waterproof body (100); an annular electrode contact (407) is arranged inside the insulating sleeve (406); one end of the insulating column (403) is fixedly connected to the cable (401); a waterproof bearing (402) is fixedly sleeved on the outer side of one end of the insulating column (403); the waterproof bearing (402) is fixedly inserted inside one end of the insulating sleeve (406); an annular protruding electrode contact piece (404) is fixedly sleeved on the upper part of the insulating column (403); when the insulating column (403) rotates in the insulating sleeve (406), the electrode contact piece (404) can always contact the electrode contact (407) and conduct electricity.

10. A pipeline detector according to claim 9, characterized in that: The surface of the electrode contact sheet (404) is provided with a plurality of elastic contact points (405) integrally arranged with the electrode contact sheet (404).

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