Unmanned pipeline detector based on intelligent sensor

Abstract

The invention belongs to the technical field of pipeline detecting instruments, and particularly relates to an unmanned pipeline detecting instrument based on an intelligent sensor, which comprises a detecting instrument main body, a signal line is inserted into the detecting instrument main body, the other end of the signal line is inserted into a bracket A, and probes are fixedly connected to two ends of the bottom of the bracket A; an integrally-formed U-shaped bent part is arranged in the middle of the top end of the support A, an insertion type positioning assembly which can be detachably arranged on the support A is arranged at the U-shaped bent part, and detachable protection assemblies are further connected between the insertion type positioning assembly and the two ends of the bottom of the support A. By designing an integrated combined structure of the transmitter and the support A, namely the plug-in positioning assembly, the transmitter can be stably assembled on the U-shaped bent part of the support A to form an integrated operation unit, an operator can hold and move by only one hand and does not need to operate by two hands respectively, the labor intensity is greatly reduced, and the working efficiency is improved. Meanwhile, relative offset of the two in the operation process is avoided, and stable transmission of detection signals is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline detectors, and particularly relates to an unmanned pipeline detector based on intelligent sensors. Background Art

[0002] Unmanned pipeline detectors based on intelligent sensors are widely used in underground pipeline detection operations. Their traditional operation modes have obvious drawbacks: First, the main body of the detector, that is, the transmitter and the A bracket need to be manually held and operated synchronously by both hands. The requirement for both hands to cooperate is high. Prolonged operation is likely to cause fatigue to the operator, greatly increasing the labor intensity. Moreover, during the operation process, the two are prone to relative offset, affecting the detection signal transmission and data accuracy. Second, the probes at the bottom of the A bracket lack an automatic protection mechanism. Before use, two protective covers need to be manually disassembled, and after the operation is completed, they need to be reinstalled. The operation is cumbersome and time-consuming, and it is also easy to lose the protective covers or forget to install them, resulting in the probes being exposed and vulnerable to collision and dirt, shortening the service life of the probes, and further affecting the detection efficiency and equipment practicability. Therefore, there is an urgent need for a structure that can achieve the integrated assembly of the detector main body and the A bracket and can联动control the automatic telescoping of the protective cover to solve the deficiencies of the existing technology.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide an unmanned pipeline detector based on intelligent sensors to solve the above-mentioned problems.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An unmanned pipeline detector based on intelligent sensors, including a detector main body, a signal line is inserted into the detector main body, the other end of the signal line is inserted into an A bracket, probes are fixedly connected to both ends of the bottom of the A bracket, a U-shaped bending part is integrally formed in the middle of the top of the A bracket, an insertable positioning component that can be disassembled from the A bracket is provided at the U-shaped bending part, and a detachable protection component is connected between the insertable positioning component and both ends of the bottom of the A bracket.

[0006] Preferably, the insertable positioning component includes a positioning frame, the width of the positioning frame is equal to the linear distance between the inner walls on both sides of the U-shaped bending part, an insertion channel is opened in the middle of the positioning frame, the insertion channel is used for inserting the detector main body, guiding inclined surfaces are opened around the top edge of the insertion channel, and grooves are opened on both sides of the bottom end of the positioning frame.

[0007] It should be noted that there is an unclear "联动" in the original text which may need further clarification for a more accurate translation. Here it is tentatively left as it is.Preferably, the positioning frame has a first sleeve plate integrally formed on both sides of the side wall by a connecting plate, the first sleeve plate has a first inclined part at both ends of the bottom, and a first weakening groove is formed in the inner center of the first sleeve plate.

[0008] Preferably, a support block is fixedly connected to the top center of the positioning frame, a threaded post is threadedly connected to the first screw hole on the support block, a clamping block is fixedly connected to the inner end of the threaded post, a handle is fixedly connected to the outer end of the threaded post, and the end of the clamping block opposite to the handle is pressed against the outer side wall of the detector body.

[0009] Preferably, a notch is provided on the arc-shaped wall of each of the two first sets of plates near the positioning frame. An arc-shaped bonding plate is integrally formed on the inner top wall of each notch through a second weakening groove. Multiple arc-shaped locking blocks are fixedly connected to the inner arc surfaces of the two arc-shaped bonding plates that are facing away from each other. Arc-shaped locking grooves that are adapted to the arc-shaped locking blocks are provided on the inner walls of both sides of the U-shaped bend.

[0010] Preferably, the bottom ends of the two arc-shaped bonding plates are integrally formed with a pressing plate, and the bottom ends of the two pressing plates are respectively integrally formed with a first synchronizing rod and a second synchronizing rod. The bottom ends of the first synchronizing rod and the bottom ends of the second synchronizing rod are respectively integrally formed with a first transmission rod and a second transmission rod through a fourth weakening groove and a third weakening groove.

[0011] Preferably, the first synchronizing rod and the second synchronizing rod are arranged in a cross configuration, the cross-section of the first transmission rod is L-shaped, the cross-section of the second synchronizing rod is Z-shaped, and the ends of the first transmission rod and the second transmission rod that are far apart are provided with inverted L-shaped portions. The inner bends of the two inverted L-shaped portions are provided with fifth weakening grooves.

[0012] Preferably, the detachable protective assembly includes a second sleeve plate integrally formed on the outer sides of both inverted L-shaped portions. The cross-section of the second sleeve plate is C-shaped. The openings of the second sleeve plate are provided with second inclined portions at both ends. The second sleeve plate is snapped into an annular groove opened on the outer side of the protective sleeve. A sixth weakening groove is opened in the inner center of the second sleeve plate.

[0013] Preferably, the protective sleeves are all movably fitted on the outer side of the bottom end of the A bracket. The bottom end of the protective sleeve has a conical structure and is provided with a through hole. The through hole is used to extend and retract the probe. The diameter of the through hole is equal to the outer diameter of the probe. The top end of the protective sleeve is integrally fixed with a movable ring by a spring. Both the movable ring and the spring are movably fitted on the outer side of the bottom end of the A bracket. Preferably, the movable ring has a second screw hole, in which a hand screw is threadedly connected, and the inner end of the hand screw, after being tightened, abuts against the outer side of the bottom end of the A bracket.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention designs an integrated structure for the transmitter and the A-bracket, namely an insert-type positioning component, which allows the transmitter to be stably mounted on the U-shaped bend of the A-bracket, forming an integrated operating unit. The operator only needs to hold and move it with one hand, without the need for two hands to operate it separately, which greatly reduces labor intensity. At the same time, it avoids relative displacement between the two during operation, ensures stable transmission of detection signals, and improves data accuracy. Utilizing the linkage mechanism between the transmitter and the protective sleeve, when the transmitter is assembled and inserted into the positioning frame, the coordinated deformation of the squeezed plate, the synchronizing rod, and the transmission rod automatically drives the two protective sleeves to move upward synchronously, allowing the probe to quickly unfold to the working state. At the same time, the compression of the two squeezed plates, along with the arc-shaped fitting plate, arc-shaped locking block, and arc-shaped locking groove, further secures the positioning frame to the U-shaped bend, ensuring the stability of the positioning frame after installation. After the detection is completed, the transmitter is pulled out, and under the spring return force and the deformation and reset action of each weakening groove, the protective sleeve automatically moves downward and completely encloses the probe, eliminating the need for manual disassembly and assembly of the protective sleeve. Simultaneously, the arc-shaped locking block automatically disengages from the arc-shaped locking groove. With the further constraint of the positioning frame, the operation is convenient and efficient, effectively preventing the problem of lost or forgotten protective sleeves, and significantly extending the probe's service life. The combination of the insertable positioning component and the detachable protective component simplifies the overall operation process, reduces preparation and completion time, and allows dirt on the probe surface to be scraped off through the through hole when the protective sleeve moves down, eliminating the need for additional cleaning steps, further improving detection efficiency and reducing equipment maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional first-view structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional second-view structure of the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional third-view structure of the present invention; Figure 4 This is a schematic diagram of the overall three-dimensional structure of the components on the A-bracket of the present invention after they are inverted; Figure 5 This is the invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This is the invention Figure 3 Enlarged structural diagram at point B; Figure 7 This is the invention Figure 4 Enlarged structural diagram at point C; Explanation of key figure labels: 1. Detector body; 11. Signal line; 2. A bracket; 21. U-shaped bend; 22. Probe; 3. Insertion positioning assembly; 31. Positioning frame; 311. Groove; 312. Insertion channel; 313. Guide slope; 32. Support block; 33. Threaded post; 34. Clamping block; 35. Connecting plate; 36. First sleeve plate; 361. First weakening groove; 362. First inclined part; 37. Notch; 371. Second weakening groove; 372. Arc-shaped bonding plate; 373. Compressed plate 374. Arc-shaped locking block; 375. Arc-shaped locking groove; 376. First synchronizing rod; 377. Second synchronizing rod; 378. Third weakening groove; 379. Fourth weakening groove; 38. First transmission rod; 381. Fifth weakening groove; 39. Second transmission rod; 4. Detachable protective assembly; 41. Protective sleeve; 411. Through hole; 42. Spring; 43. Movable ring; 44. Hand-tightening screw; 45. Annular groove; 46. Second sleeve plate; 461. Sixth weakening groove; 462. Second inclined part. Detailed Implementation

[0016] The technical solution of this invention patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0017] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] See attached document Figure 1-7An unmanned pipeline detector based on intelligent sensors includes a detector body 1, a signal line 11 plugged into the detector body 1, the other end of the signal line 11 plugged into a bracket A 2, probes 22 fixed to both ends of the bottom of the bracket A 2, an integrally formed U-shaped bend 21 provided at the middle of the top of the bracket A 2, an insertable positioning component 3 detachable from the bracket A 2 provided at the U-shaped bend 21, and a detachable protective component 4 connected between the insertable positioning component 3 and both ends of the bottom of the bracket A 2.

[0020] It is worth noting that the detector body 1 is a transmitter, which needs to be used in conjunction with bracket A 2 for detection. This is existing technology. At the same time, the transmitter has an integrated intelligent GNSS module sensor, which is connected to a microprocessor built into or external to the receiver via serial port or USB.

[0021] Data fusion: Write simple embedded programs to allow the processor to synchronously receive probe data from the pipeline receiver, such as depth and signal strength, and high-precision position data from the GNSS module.

[0022] Real-time presentation and recording: The processor sends the fused "location-attribute" data packet to the operator's handheld tablet in real time via Wi-Fi or Bluetooth. The dedicated app displays, maps, and stores the data. All of the above can be achieved using existing technologies and will not be described in detail.

[0023] Furthermore, such as Figure 1-7As shown, the insertion positioning component 3 includes a positioning frame 31. The width of the positioning frame 31 is equal to the straight-line distance between the inner walls on both sides of the U-shaped bend 21. An insertion channel 312 is provided in the middle of the positioning frame 31 for inserting the detector body 1. Guide slopes 313 are provided around the top edge of the insertion channel 312. Grooves 311 are provided on both sides of the bottom end of the positioning frame 31. The grooves 311 are designed to avoid the extruded plate 373 and the arc-shaped bonding plate 372, facilitating the deformation of the arc-shaped bonding plate 372 through the second weakening groove 371. On both sides of the positioning frame 31, a first set of plates 36 with a vertical cross-section in the shape of an "Ω" are integrally formed through connecting plates 35. The bottom ends of the first set of plates 36 are provided with first inclined portions 362. The inner center of the first set of plates 36 is provided with a first weakening groove 361. A support block 32 is fixedly connected to the top center of the positioning frame 31. A threaded post 33 is threadedly connected to the first screw hole on the support block 32. A clamping block 34 is fixedly connected to the inner end of the threaded post 33. A handle is fixedly connected to the outer end of the threaded post 33. The end of the clamping block 34 facing away from the handle is pressed against the outer side wall of the detector body 1. On the arc-shaped wall of each of the two first-set plates 36 near the positioning frame 31, there is a notch 37. An arc-shaped bonding plate 372 is integrally formed on the inner top wall of each notch 37 via a second weakening groove 371. Multiple equally spaced arc-shaped locking blocks 374 are fixed to the opposing inner arc surfaces of the two arc-shaped bonding plates 372. Arc-shaped locking grooves 375, matching the arc-shaped locking blocks 374, are formed on the inner walls of both sides of the U-shaped bend 21. A pressing plate 373 is integrally formed at the bottom end of each of the two arc-shaped bonding plates 372. A first-shaped locking plate is integrally formed at the bottom end of each of the two pressing plates 373. Step rod 376 and second synchronization rod 377, the bottom end of the first synchronization rod 376 and the bottom end of the second synchronization rod 377 are integrally formed with a first transmission rod 38 and a second transmission rod 39 through a fourth weakening groove 379 and a third weakening groove 378, respectively. The first synchronization rod 376 and the second synchronization rod 377 are arranged in a cross-shaped manner. The cross-section of the first transmission rod 38 is L-shaped and the cross-section of the second synchronization rod 377 is Z-shaped. The ends of the first transmission rod 38 and the second transmission rod 39 that are far apart are provided with inverted L-shaped parts. A fifth weakening groove 381 is opened at the inner bend of the two inverted L-shaped parts.

[0024] It is worth noting that the guide slope 313 is designed to facilitate the quick insertion of the bottom end of the detector body 1 into the insertion channel 312 of the positioning frame 31; the first sleeve plate 36 and the first weakening groove 361 and the first inclined part 362 provided thereon facilitate the first sleeve plate 36 to open through the first weakening groove 361 when it is sleeved on the outside of the U-shaped bend 21, thereby driving the first sleeve plate 36 to open through the first weakening groove 361 through the two first inclined parts 362, thereby driving the positioning frame 31 to be quickly pre-positioned on the U-shaped bend 21; After the detector body 1 is inserted into the insertion channel 312 opened in the positioning frame 31, the outer walls on both sides of the detector body 1 will press against the two pressure plates attached to it. Figure 4 The tilted state in the middle becomes attached Figure 2 The vertical position of the detector body 1 allows for pre-positioning of the detector body 1. At the same time, the threaded column 33 can be twisted by manually operating the handle, so that the clamping block 34 can be clamped against the outside of the detector body 1 to fix the required height of the detector body 1, making it convenient for people of different heights to operate and use. While the two pressure plates are deformed into a vertical state, their first synchronizing rod 376 and second synchronizing rod 377 are also in a vertical state at the same time. In conjunction with the setting of the third weakening groove 378 and the fourth weakening groove 379, the inverted L-shaped parts on the first transmission rod 38 and the second transmission rod 39 that are far apart are driven to move the two protective sleeves 41 synchronously upward under the deformation setting of the fifth weakening groove 381, and compress the springs 42 respectively. As the two protective sleeves 41 move upwards synchronously, driving the probe 22 to extend from the bottom through hole 411 of the protective sleeve 41, while the two pressure plates deform into a vertical state, they can also drive the arc-shaped bonding plate 372 to deform through the second weakening groove 371, and drive the multiple arc-shaped locking blocks 374 on the arc-shaped bonding plate 372 to respectively engage with the corresponding arc-shaped locking grooves 375, so as to further achieve the fixing effect of its positioning frame 31 on the U-shaped bend 21. The shapes of the first transmission rod 38 and the second transmission rod 39 are designed to allow the two transmission rods to avoid each other and facilitate the mutual cross-restoration of the two synchronizing rods.

[0025] Furthermore, such as Figure 1-7 As shown, the detachable protective assembly 4 includes a second sleeve plate 46 integrally formed on the outer sides of both inverted L-shaped portions. The cross-section of the second sleeve plate 46 is C-shaped. A second inclined portion 462 is provided at both ends of the opening of the second sleeve plate 46. The second sleeve plate 46 is snapped into an annular groove 45 opened on the outer side of the protective sleeve 41. A sixth weakening groove 461 is opened in the inner center of the second sleeve plate 46. The protective sleeve 41 is movably sleeved on the outer side of the bottom end of the A bracket 2. The bottom end of the protective sleeve 41... It has a conical structure and a through hole 411. The through hole 411 is used for telescopic probe 22. The diameter of the through hole 411 is equal to the outer diameter of the probe 22. The top of the protective sleeve 41 is integrally fixed with a movable ring 43 by a spring 42. The movable ring 43 and the spring 42 are both movably sleeved on the outer side of the bottom end of the A bracket 2. The movable ring 43 has a second screw hole. A hand screw 44 is threaded into the second screw hole. After the hand screw 44 is locked, the inner end is pressed against the outer side of the bottom end of the A bracket 2.

[0026] It is worth noting that, with the synchronous driving force of the insertion channel 312 on the positioning frame 31 of the detector body 1, and in conjunction with the linkage of the insertion positioning component 3, the protective sleeve 41 is driven to move upward to a fixed height and compress the spring 42. When the detector body 1 is pulled out, the positioning frame 31 is released from further locking with the U-shaped bend 21. Under the action of the return force of the spring 42 and the elastic force of the weakening groove, the protective sleeve 41 is driven to move downward. The dirt and grime left by the probe 22 when it is inserted into the ground can be pushed downward through the through hole 411. This ensures the cleanliness of the probe 22 when it is used again, and allows the probe 22 to be retracted into the protective sleeve 41. It also protects the probe 22 when it is not in use. Since the second plate 46 can be weakened by deformation between the fifth weakening groove 381 and the inverted L-shaped part on the corresponding transmission rod, the second plate 46 can be removed from the annular groove 45 opened on the protective sleeve 41. Then, by loosening the hand screw 44, the protective sleeve 41, spring 42 and movable ring 43 can be pulled downward and disassembled for replacement.

[0027] In actual use, the first sleeve plate 36 of the insert-type positioning component 3 is aligned with the U-shaped bend of the A bracket. With the help of the deformation of the first inclined part 362 and the first weakening groove 361, the first sleeve plate 36 is quickly fitted and pre-positioned on the outside of the U-shaped bend. The protective sleeve 41, spring 42 and movable ring 43 are sequentially fitted onto the bottom end of the A bracket. The hand screw 44 on the movable ring 43 is tightened. Next, the second sleeve plate 46 of the detachable protective component 4 is inserted into the annular groove 45 of the protective sleeve 41 through the second inclined part 462 to complete the initial fixation of the protective component. Secondly, the detector body 1 is quickly inserted into the positioning frame 31 by the guide slope 313 of the insertion channel 312 through the positioning frame 31. The outer walls on both sides of the detector body 1 press against the squeezed plate 373, causing it to change from an inclined state to a vertical state, thus achieving the pre-positioning of the detector body 1. During this process, the squeezed plate 373 drives the first synchronous rod 376 and the second synchronous rod 377 to deform vertically in sync. The third and fourth weakening grooves 379 drive the inverted L-shaped parts of the first transmission rod 38 and the second transmission rod 39 to expand outward. With the help of the deformation of the fifth weakening groove 381, the second sleeve plate 46 pulls the protective sleeve 41 upward along the A bracket. The spring 42 is compressed, and the probe 22 extends out from the through hole 411 at the bottom of the protective sleeve 41. At the same time, the arc-shaped bonding plate 372 deforms through the second weakening groove 371, causing the arc-shaped locking block 374 to be inserted into the U. The arc-shaped groove 375 of the curved part realizes the stable fixation of the positioning frame 31; the rotating handle drives the threaded column 33 to advance, so that the clamping block 34 presses against the outside of the detector body 1, completing the height fixation and final positioning of the detector body 1; Detection operation: The main body of the detector 1 collects data such as pipeline depth and signal strength through intelligent GNSS module sensors. After fusing with high-precision location data, it is transmitted to a handheld terminal via Wi-Fi or Bluetooth to realize pipeline detection and data recording. Finally, after the detection is completed, the handle is turned in the opposite direction to release the clamping block 34, and the detector body 1 is pulled out. After the squeezed plate 373 loses its pressure, under the deformation and reset action of each weakening groove, the synchronizing rod and the transmission rod return to their initial state, and the second sleeve plate 46 no longer pulls the protective sleeve 41; the spring 42 rebounds and pushes the protective sleeve 41 down along bracket A. During the movement, the through hole 411 at the bottom of the protective sleeve 41 scrapes away the dirt and grime adhering to the surface of the probe 22. Finally, the protective sleeve 41 completely covers the probe 22, achieving cleaning and protection of the probe 22. In addition, if maintenance or replacement of parts is required, the second sleeve plate 46 is disengaged from the annular groove 45 of the protective sleeve 41 by the deformation of the fifth weakening groove 381, and then the hand screw 44 is loosened. The movable ring 43, spring 42 and protective sleeve 41 are removed by moving down along bracket A. The protective sleeve 41 can then be replaced separately. If the positioning component needs to be disassembled, the first sleeve plate 36 is opened by the deformation of the first weakening groove 361, and the positioning component can be removed from the U-shaped bend. The operation is convenient. In summary, both the insertable positioning component 3 and the detachable protective component 4 are made of ABS plastic and are integrally injection molded, resulting in low processing and manufacturing costs and significantly reducing production costs.

[0028] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. An unmanned pipeline detector based on intelligent sensors, comprising a detector body, a signal line plugged into the detector body, the other end of the signal line plugged into a bracket A, and probes fixed to both ends of the bottom of the bracket A, characterized in that, The top center of the A bracket is provided with an integrally formed U-shaped bend, and the U-shaped bend is provided with an insertable positioning component that can be detached from the A bracket. The insertable positioning component is also connected to the bottom ends of the A bracket with a detachable protective component.

2. The unmanned pipeline detector based on intelligent sensors according to claim 1, characterized in that, The insertion positioning component includes a positioning frame. The width of the positioning frame is equal to the straight-line distance between the inner walls on both sides of the U-shaped bend. An insertion channel is provided in the middle of the positioning frame for inserting the detector body. Guide slopes are provided around the top edge of the insertion channel. Grooves are provided on both sides of the bottom end of the positioning frame.

3. The unmanned pipeline detector based on intelligent sensors according to claim 2, characterized in that, The positioning frame has a first set of plates integrally formed on both sides of the frame via connecting plates. The first set of plates has a first inclined part at both ends of the bottom and a first weakening groove in the inner center of the first set of plates.

4. The unmanned pipeline detector based on intelligent sensors according to claim 2, characterized in that, A support block is fixed to the top center of the positioning frame. A threaded post is threaded into the first screw hole on the support block. A clamping block is fixed to the inner end of the threaded post. A handle is fixed to the outer end of the threaded post. The end of the clamping block opposite to the handle is pressed against the outer side wall of the detector body.

5. The unmanned pipeline detector based on intelligent sensors according to claim 3, characterized in that, On the arc-shaped wall of each of the two first sets of plates near the positioning frame, there is a notch. The inner top wall of each notch is integrally formed with an arc-shaped bonding plate through a second weakening groove. Multiple arc-shaped locking blocks are fixed to the inner arc surfaces of the two arc-shaped bonding plates that are facing away from each other. Arc-shaped locking grooves that match the arc-shaped locking blocks are opened on the inner walls of both sides of the U-shaped bend.

6. The unmanned pipeline detector based on intelligent sensors according to claim 5, characterized in that, The bottom ends of the two arc-shaped bonding plates are integrally formed with a pressing plate, and the bottom ends of the two pressing plates are integrally formed with a first synchronizing rod and a second synchronizing rod, respectively. The bottom ends of the first synchronizing rod and the bottom ends of the second synchronizing rod are integrally formed with a first transmission rod and a second transmission rod through a fourth weakening groove and a third weakening groove, respectively.

7. The unmanned pipeline detector based on intelligent sensors according to claim 6, characterized in that, The first synchronizing rod and the second synchronizing rod are arranged in a cross configuration. The cross-section of the first transmission rod is L-shaped, and the cross-section of the second synchronizing rod is Z-shaped. The ends of the first and second transmission rods that are far apart are provided with inverted L-shaped portions. The inner bends of the two inverted L-shaped portions are provided with fifth weakening grooves.

8. The unmanned pipeline detector based on intelligent sensors according to claim 7, characterized in that, The detachable protective assembly includes a second sleeve plate integrally formed on the outer sides of both inverted L-shaped portions. The cross-section of the second sleeve plate is C-shaped. The openings of the second sleeve plate are provided with second inclined portions at both ends. The second sleeve plate is snapped into an annular groove opened on the outer side of the protective sleeve. A sixth weakening groove is opened in the inner center of the second sleeve plate.

9. The unmanned pipeline detector based on intelligent sensors according to claim 8, characterized in that, The protective sleeves are all movably fitted on the outer side of the bottom end of the A bracket. The bottom end of the protective sleeve is tapered and has a through hole. The through hole is used to extend and retract the probe. The diameter of the through hole is equal to the outer diameter of the probe. The top end of the protective sleeve is integrally fixed with a movable ring by a spring. The movable ring and the spring are both movably fitted on the outer side of the bottom end of the A bracket. An unmanned pipeline detector based on intelligent sensors according to claim 9, characterized in that, The movable ring has a second screw hole, and a hand screw is threaded into the second screw hole. The inner end of the hand screw, after being tightened, abuts against the outer side of the bottom end of the A bracket.

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