CN113687426B - Hand-held data acquisition instrument and measurement method based on underground pipeline mapping - Google Patents
Hand-held data acquisition instrument and measurement method based on underground pipeline mapping Download PDFInfo
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- CN113687426B CN113687426B CN202110913941.4A CN202110913941A CN113687426B CN 113687426 B CN113687426 B CN 113687426B CN 202110913941 A CN202110913941 A CN 202110913941A CN 113687426 B CN113687426 B CN 113687426B
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- G—PHYSICS
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Abstract
The invention relates to the technical field of underground pipeline detection, and discloses a handheld data acquisition instrument and a measurement method based on underground pipeline mapping, wherein the handheld data acquisition instrument comprises a transmitter, a receiver and a clamping device, and the transmitter and the clamping device are arranged on a base; a connecting wire is connected between the transmitter and the clamping device; the clamping device comprises a fixed ring connected with the connecting wire and a clamping part arranged in the fixed ring in a sliding manner; the fixed ring is semicircular, and the opening of the fixed ring faces downwards; one side of the fixed ring is provided with a driving component for driving the clamping part to move; the clamping part is arc-shaped; one end of the clamping part is connected in the fixed ring in a sliding way, and one end of the clamping part is inserted in the fixed ring and combined to form a circular ring shape. The invention has the effects of being convenient for clamping the cable and being convenient for mapping the underground pipeline.
Description
Technical Field
The invention relates to the technical field of underground pipeline detection, in particular to a handheld data acquisition instrument and a measurement method based on underground pipeline mapping.
Background
With the progress of compression and construction technology of urban underground space, technologies such as non-directional drilling traction pipes, non-excavation jacking pipes and the like are used more frequently, and the burial depths of electric power tunnels, underground comprehensive pipe galleries and the like are also increased. For such deep buried pipelines, accurate detection of the depth of the buried pipeline has been a technical problem.
Underground pipeline networks are an important infrastructure indispensable in urban operation and development, and underground pipelines not only provide important living materials for residents in cities, but also bear the responsibility of providing basic resources and energy for urban development. Perfect and developed underground pipeline system and safe and stable operation thereof are the guarantee and foundation of modern city operation. However, the laying period of part of underground pipelines is long, the daily management and maintenance are lacked, and the condition of pipeline data loss is serious. In urban construction or construction process, because of lacking the real-time pipeline diagram of the underground pipeline in the construction area and having no quick and accurate pipeline detection means, the real-time underground pipeline distribution condition cannot be obtained, so that the pipeline cannot be effectively avoided in the construction process, the pipeline is damaged, and even a series of accidents occur. Generally, a clamp method is adopted to map the underground pipeline, and data of the underground pipeline are collected.
In view of the above-mentioned related art, the present inventors have found that, in the process of implementing the technical solution of the present application in the embodiment of the present application, at least the following technical problems exist: however, when data of an underground pipeline is collected, the underground pipeline is usually required to be manually placed underground, a clamp is used for clamping a cable, a receiver is used for scanning and detecting on the ground, the underground topography is complex, and the cable is manually inconvenient to be placed underground for clamping.
Disclosure of Invention
The embodiment of the application solves the problem that the cable is inconvenient to clamp when the underground pipeline data is acquired by a clamping method in the prior art by providing the handheld data acquisition instrument and the measuring method based on underground pipeline mapping, and achieves the effect of being convenient for clamping the cable and being capable of mapping the underground pipeline.
The embodiment of the application provides a handheld data acquisition instrument based on underground pipeline mapping, which comprises a transmitter, a receiver and a clamp device, wherein the transmitter and the clamp device are arranged on a base; a connecting wire is connected between the transmitter and the clamping device; the clamping device comprises a fixed ring connected with the connecting wire and a clamping part arranged in the fixed ring in a sliding manner; the fixed ring is semicircular, and the opening of the fixed ring faces downwards; one side of the fixed ring is provided with a driving component for driving the clamping part to move; the clamping part is arc-shaped; one end of the clamping part is connected to the fixing ring in a sliding manner, and one end of the clamping part is inserted into the fixing ring and combined to form a circular ring shape.
Further, the fixing ring is hollow, and an arc-shaped guide groove is formed in the outer side wall of the arc-shaped fixing ring; the driving assembly comprises a driving motor arranged on one side of the fixed ring, a gear arranged on an output shaft of the driving motor, and a rack section arranged on the outer side wall of the clamping part; the rack section is arc-shaped; the rack section is connected in the guide groove in a sliding way; the gear is engaged with the rack segment.
Further, a detection camera is arranged on one side of the fixed ring; the other side of the fixed ring is provided with a laser pen.
Further, the height of the fixing ring, which is close to one end of the driving assembly, is higher than the height of the fixing ring, which is far away from one end of the driving assembly.
Further, two ends of the rack section and two ends of the clamping part are arranged at intervals.
Further, an adjusting wire frame is arranged on one side of the base; the adjusting wire frame comprises a fixed sleeve, a movable rod which is connected in the fixed sleeve in a sliding way, and a wire ring which is arranged at one end of the movable rod far away from the base; the fixed sleeve is connected with the movable rod through a bolt; the connecting wire passes through the fixed ring, one end of the connecting wire is connected with the transmitter, and the other end of the connecting wire is connected with the clamping device.
The embodiment of the application also provides a measuring method based on underground pipeline mapping, which comprises the following steps: s1, opening a well related to a target pipeline, and measuring the actual burial depth of the pipeline; s2, placing a transmitter near a wellhead of the well, placing a clamp device in the well, and driving a clamping part and a fixed ring to clamp a cable through a driving assembly; s3, detecting by a handheld receiver according to the cable routing direction in the well, collecting electromagnetic wave signals, adjusting the frequency of the receiver to enable the frequency of the receiver to be consistent with the frequency of a secondary field generated by a target pipeline, and finding out the position with the maximum signal; s4, positioning and marking the position with the maximum signal, then making 70% sounding, recording the positions with the depth of 70% on the left side and the right side of the position with the maximum signal, correcting the plane position to obtain the sum of the distances of the positions with the depth of 70% on the left side and the right side, taking the center of the sum of the distances as the center position of the pipeline, marking, and then carrying out depth measurement on the marked position of the center position of the pipeline by using a receiver to obtain a final measured value.
Further, the step of S2 further includes: after the cable is clamped, defining the center of the well as a circle center, taking a straight line where the cable basically moves in the well as a reference line, taking a point on the reference line, which coincides with the circle center, and a point which is 5 meters away from the circle center to form a positioning line segment, and rotating the positioning line segment to the left side and the right side of the positioning line segment by 30 degrees with the circle center as a rotation center to form a region to be measured.
Further, after the step S4, the measurement method further includes: s5, adjusting the receiver to the minimum value, detecting the position near the central position mark of the pipeline by adopting the minimum value, observing the position of the mobile receiver indicated by the arrow on the receiver until the two arrows on the receiver appear simultaneously to obtain the plane position of the cable, and comparing and verifying the plane position with the central position mark of the pipeline.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
1. Because the structure of the clamp device is adopted, the clamp device can be placed in the well, the clamping part is driven by the driving component to clamp the target pipeline, the electromagnetic wave signal in the well is obtained through the detection heads on the fixed ring, then the detection is carried out within a certain range on the ground according to the receiver, and the measurement data of the underground pipeline is obtained through analysis and calculation, so that the unsafe problem caused by manually clamping the target pipeline in the well when the underground pipeline is detected by adopting the clamp method in the prior art is effectively solved, and the safety of detecting the underground pipeline by adopting the clamp method is further improved.
2. Owing to adopted drive assembly's structure, so can make driving motor drive gear through opening driving motor, and rack section and gear mesh on the clamping part, and then can drive the clamping part and rotate along solid fixed ring's inside for the one end of clamping part is pegged graft in solid fixed ring's the other end, and it is fixed to carry out the centre gripping to target line, is convenient for survey the electromagnetic wave signal in the well, has effectively solved the problem that is inconvenient for pressing from both sides the target line clamp among the prior art, and then has realized the effect of the target line in the well of the clamp of being convenient for swiftly.
3. Due to the adoption of the structure of the adjusting wire frame, the clamp device can be aligned to the target pipeline through the adjusting wire frame, so that the clamp device clamps the target pipeline with higher precision, the efficiency and the precision of automatically clamping the target pipeline are improved, the problem that the clamp device is inconvenient to align to the target pipeline in the well in the prior art is effectively solved, and the effect of conveniently clamping the target pipeline in the well by the clamp device is further realized.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of an adjusting bracket according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of a wire management device according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of FIG. 2 at A;
FIG. 5 is an enlarged schematic view at B in FIG. 3;
FIG. 6 is a schematic view of a clamp device according to an embodiment of the present application;
In the figure: 1. a base; 11. a transmitter; 12. a receiver; 13. a connecting wire; 2. a clamping device; 21. a probe; 22. a fixing ring; 221. a guide groove; 23. a clamping part; 24. a drive assembly; 241. a driving motor; 242. a gear; 243. a rack section; 3. a wire arranging device; 31. a mounting frame; 32. a wire winding roller; 321. a fixed plate; 33. a vertical plate; 331. a guide hole; 34. a wire arranging assembly; 341. a connecting block; 342. a reciprocating screw; 343. a guide rod; 344. a slide; 345. a wire guide roller; 346. a threading hole; 35. a brake assembly; 36. a linkage assembly; 361. a first driving wheel; 362. a second driving wheel; 363. a transmission belt; 4. a positioning assembly; 41. a fixed block; 42. an elastic sheet; 43. a locking bolt; 5. adjusting a wire frame; 51. a fixed sleeve; 52. a movable rod; 53. a wire loop; 6. detecting a camera; 7. a laser pen.
Detailed Description
According to the embodiment of the application, the handheld data acquisition instrument and the measuring method based on underground pipeline mapping are provided, the handheld data acquisition instrument is used for mapping the underground pipeline, so that the clamping device 2 is placed in a well, the clamping part 23 is driven by the driving component 24 to clamp the cable, and then the receiver 12 is used for scanning detection on the ground to obtain the measuring data of the underground pipeline, the problem that the cable is inconvenient to clamp when the data of the underground pipeline are acquired by the clamping method in the prior art is solved, and the effect that the cable is convenient to clamp and the underground pipeline can be mapped is realized.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1
The embodiment of the application discloses a handheld data acquisition instrument based on underground pipeline mapping, referring to fig. 1, the handheld data acquisition instrument based on underground pipeline mapping comprises a transmitter 11, a receiver 12 and a clamp device 2, wherein the transmitter 11 and the clamp device 2 are both arranged on a base 1, the transmitter 11 and the clamp device 2 are connected through a connecting wire 13, a detection head 21 is arranged on the clamp device 2, the clamp device 2 is arranged in a well, a cable positioned at the top in the middle is clamped, electromagnetic wave signals in a well are detected, the receiver 12 is started, a secondary field signal is received at a certain distance through the receiver 12, and the accurate position of a pipeline is detected.
Referring to fig. 2 and 3, the connecting wire 13 is a power connection wire, one end of the connecting wire 13 is in plug-in fit with the transmitter 11, and the other end of the connecting wire 13 is fixedly connected with the clamping device 2 and used for conveying the clamping devices 2 in a well. The base 1 is provided with a wire arranging device 3 for conveying and accommodating the connecting wires 13. The wire arranging device 3 comprises a mounting frame 31, a winding roller 32, a vertical plate 33 and a wire arranging assembly 34, wherein the mounting frame 31 is fixed on the base 1 and is positioned on one side of the transmitter 11, the winding roller 32 is horizontally arranged, the winding roller 32 is rotationally connected to the mounting frame 31, a brake assembly 35 is mounted on the base 1 and is positioned on one side of the mounting frame 31, and the brake assembly 35 is used for driving the winding roller 32 to rotate so as to convey or store the connecting wire 13. The brake assembly 35 includes a brake motor fixed to the base 1, and an output shaft of the brake motor is fixedly connected to one end of the winding roller 32.
Referring to fig. 3 and 4, the standing plate 33 is fixedly installed on the base 1, and the standing plate 33 is positioned at one side of the winding roller 32 to be aligned with the winding roller 32. The vertical plate 33 is provided with a horizontal guide hole 331. The wire arranging assembly 34 comprises two connecting blocks 341, a reciprocating screw 342, a guide rod 343, a sliding seat 344 and wire guiding rollers 345, wherein the two connecting blocks 341 are respectively close to the two sides of the vertical plate 33, the reciprocating screw 342 and the guide rod 343 are horizontally arranged, the reciprocating screw 342 is rotationally connected between the two connecting blocks 341, the guide rod 343 is fixedly connected between the two connecting blocks 341, the reciprocating screw 342 and the guide rod 343 are arranged side by side from top to bottom, the position of the sliding seat 344 close to the upper side passes through the reciprocating screw 342 and is in threaded connection with the reciprocating screw 342, and the position of the sliding seat 344 close to the lower side passes through the guide rod 343 and is in sliding fit with the guide rod 343. The slider 344 is provided with a threading hole 346 corresponding to the guide hole 331. The guide roller is rotatably connected to a side of the slider 344 away from the vertical plate 33, and the upper surface of the guide roller is higher than the bottom of the threading hole 346. In order to drive the reciprocating screw 342 to rotate, a linkage assembly 36 is mounted on the base 1, the linkage assembly 36 comprises a first driving wheel 361, a second driving wheel 362 and a driving belt 363, the first driving wheel 361 is fixed on an output shaft of the brake motor, the second driving wheel 362 is fixed on one end of the reciprocating screw 342, and the driving belt 363 is sleeved on the first driving wheel 361 and the second driving wheel 362. When the brake motor rotates, the winding roller 32 can be driven to pay off the connecting wire 13, meanwhile, one end of the connecting wire 13 sequentially penetrates through the guide hole 331 and the threading hole 346, the brake motor rotates and can drive the first driving wheel 361 to rotate, the second driving wheel 362 rotates due to the action of the driving belt 363, the second driving wheel 362 drives the reciprocating screw 342 to rotate, the reciprocating screw 342 drives the connecting wire 13 to move along the length direction of the winding roller 32, the connecting wire 13 is lengthened, the connecting wire 13 can be lengthened, and the clamping device 2 is conveniently placed in a well. The wire roller 345 is beneficial to reducing friction when the connecting wire 13 is paid out or wound, and improving protection of the connecting wire 13.
Referring to fig. 3 and 5, when the underground line is detected, one end of the connection wire 13 is connected to the transmitter 11, and the positioning unit 4 is mounted on the winding roller 32 in order to improve the connection stability between the connection wire 13 and the transmitter 11. Fixed disks 321 coaxially arranged are fixedly mounted at both ends of the winding roller 32. The positioning assembly 4 comprises a fixed block 41, elastic pieces 42 and locking bolts 43, wherein the fixed block 41 is fixedly arranged on a fixed disc 321 close to one side of the transmitter 11 and is positioned on one side of the fixed disc 321 close to the other fixed disc 321, the elastic pieces 42 are provided with two, one ends of the two elastic pieces 42 are fixedly connected with one side, far away from the fixed disc 321, of the fixed block 41, the two elastic pieces 42 are arranged at intervals along the height direction of the fixed block 41, the locking bolts 43 are fixed on the two elastic pieces 42, one end of a connecting wire 13 penetrates through the position between the two elastic pieces 42 and the locking bolts 43 and is used for locking the two elastic pieces 42 to clamp and position the connecting wire 13.
Referring to fig. 1 and 2, in order to facilitate adjustment of the lowering position of the clamping device 2 in the well, the clamping device 2 can align and clamp the cable, an adjusting wire frame 5 is fixedly mounted on one side of the base 1, and the adjusting wire frame 5 can stretch and retract, so that the lowering position of the clamping device 2 can be adjusted. The adjusting wire frame 5 comprises a fixed sleeve 51, a movable rod 52 and a wire ring 53, one end of the fixed sleeve 51 is fixed on the side wall of the base 1, the fixed sleeve 51 is arranged corresponding to the vertical plate 33, the other end of the fixed sleeve 51 horizontally extends, the movable rod 52 is slidably connected in the fixed sleeve 51, the fixed ring 22 is fixed on one end of the movable rod 52 far away from the fixed sleeve 51, in order to reduce the mutual rotation of the movable rod 52 and the fixed sleeve 51, the sections of the fixed sleeve 51 and the movable rod 52 are rectangular, the axis of the movable ring is vertically arranged, and after the position between the fixed sleeve 51 and the movable rod 52 is adjusted according to actual conditions, the fixed sleeve 51 and the movable rod 52 are locked and positioned through bolts. The connecting wire 13 passes through the fixing ring 22, and the connecting wire 13 passes through one end of the fixing ring 22 to be connected with the clamping device 2. Smooth inclined surfaces are formed between the outer side and the inner side of the upper end of the fixing ring 22, so that the connecting wire 13 can conveniently penetrate through the fixing ring 22, friction between the connecting wire 13 and the fixing ring 22 is reduced, and protection of the connecting wire 13 is improved.
Referring to fig. 1 and 6, the clamp device 2 includes a fixing ring 22, a clamping portion 23, and a driving unit 24, wherein the fixing ring 22 is in a semicircular shape, the fixing ring 22 is in a hollow structure, an opening of the fixing ring 22 faces downward, and an end of the connecting wire 13 is fixedly connected with a position directly above the fixing ring 22 and located at the center. One end of the fixed ring 22 is lower than the other end of the fixed ring 22, a guide groove 221 is formed in the outer side wall of the fixed ring 22, the guide groove 221 is communicated with the inside of the fixed ring 22, and two ends of the guide groove 221 penetrate through two end parts of the fixed ring 22. The probe 21 is fixed to the fixed ring 22 at a position near the lower end of the fixed ring 22. The clamping part 23 is semicircular, one end of the clamping part 23 is slidably connected in the fixed ring 22, the other end of the clamping part 23 can be inserted in the lower end of the fixed ring 22, and when one end of the clamping part 23 is inserted in the lower end of the fixed ring 22, the clamping part 23 and the fixed ring 22 are combined to form a circular ring. The driving assembly 24 is fixedly installed at one side of the upper end of the fixed ring 22, and is used for driving the clamping portion 23 to move, so that one end of the clamping portion 23 is inserted into the lower end of the fixed ring 22.
Referring to fig. 6, the driving assembly 24 includes a driving motor 241, a gear 242, and a rack section 243, the driving motor 241 is fixedly mounted on a side wall of the fixed ring 22, the gear 242 is fixedly mounted on an output shaft of the driving motor 241, the rack section 243 is fixed on an outer side wall of the clamping portion 23, the rack section 243 is arc-shaped, two ends of the rack section 243 are spaced from two ends of the clamping portion 23, the rack section 243 is slidably connected in the guide groove 221, and the gear 242 is engaged with the rack section 243. By starting the driving motor 241, the gear 242 can be driven to rotate, the gear 242 rotates, and the rack section 243 meshed with the gear 242 rotates along the guiding groove 221, so that the other end of the clamping part 23 is inserted into the lower end of the fixed ring 22. When the fixing ring 22 and the clamping portion 23 are combined to form a ring, the cable is clamped in the ring, and the centers of the fixing ring 22, the clamping portion 23, the guide groove 221 and the rack section 243 coincide with the center of the ring.
Referring to fig. 6, in order to facilitate detection of conditions in wells, the clamping device 2 is conveniently operated to clamp the cable, a detection camera 6 is fixedly installed on one side of the top of the fixing ring 22, and a laser pen 7 is fixedly installed on the other side of the top of the fixing ring 22. Through laser pen 7 irradiation, can conveniently aim at clamping device 2 with the cable that will press from both sides tightly, can observe clamping device 2's state through detecting camera 6, be convenient for judge whether press from both sides tightly corresponding cable, after surveying underground line, can judge clamping device 2 and cable separately through the picture that detects camera 6 shot, conveniently pack up clamping device 2, improved whole device's accuracy nature and security, improve work efficiency.
Example two
On the other hand, the embodiment of the application discloses a measuring method based on underground pipeline mapping, which adopts the handheld data acquisition instrument and is shown in fig. 1-6, and the measuring method comprises the following steps.
S1, acquiring the actual burial depth of a target pipeline, firstly opening a well related to the target pipeline, and measuring the actual burial depth of the target pipeline.
S2, installing a data acquisition instrument, and acquiring data of the target pipeline by installing the data acquisition instrument so as to facilitate the subsequent analysis of the distribution condition of the underground pipeline.
And S21, placing the transmitter 11 near the wellhead of the well so that the base 1 is near the wellhead of the well, and the side of the base 1, on which the adjusting frame is installed, is near the wellhead of the well.
S22, one end of the connecting wire 13 is inserted into the transmitter 11, the clamping device 2 is placed in the well, the picture shot by the detection camera is observed, the information acquired in the well is observed manually, the length of the adjusting frame is adjusted, the clamping device 2 is aligned to a cable which is positioned in the middle position and at the top of the well, the braking motor is started, the braking motor drives the winding roller 32 to rotate, the connecting wire 13 wound on the winding roller 32 is paid off, the connecting wire 13 is paid off along the wire ring 53, and the clamping device 2 is lowered to a target pipeline.
S23, by starting the driving motor 241, the driving motor 241 drives the gear 242 to rotate, the clamping part 23 meshed with the gear 242 gradually rotates and stretches out from the fixed ring 22 until one end of the clamping part 23 is inserted into the lower end of the fixed ring 22, and the driving motor 241 stops rotating.
S24, by observing pictures shot by the laser pen 7 and the detection camera, whether the clamp device 2 clamps the target pipeline is verified.
And S25, defining the center of the well as a circle center, taking a straight line where the cable basically runs in the well is as a reference line, taking a point which is on the reference line and coincides with the circle center and a point which is 5 meters away from the circle center to form a positioning line segment, and rotating the positioning line segment to the left side and the right side of the positioning line segment by 30 degrees with the circle center as a rotation center to form a region to be measured.
S3, collecting signals, detecting the handheld receiver 12 according to the cable routing direction in the well and in a region to be detected, collecting electromagnetic wave signals, adjusting the frequency of the receiver 12 to be consistent with the frequency of a secondary field generated by a target pipeline, and finding out the position of the maximum signal according to the indication of the receiver 12.
S4, analyzing and determining a final measured value, carrying out positioning marking on the position with the maximum signal, carrying out 70% depth measurement, calculating to obtain a pipeline center embedded depth value according to 70% of the actual embedded depth value of the target pipeline, carrying out marking on two positions, which are left and right sides of the position with the maximum signal recorded and are away from the pipeline center embedded depth value, according to the pipeline center embedded depth value, carrying out plane position correction to obtain a distance sum between the two pipeline center embedded depth values, taking the center of the distance sum as the pipeline center position, marking, and carrying out depth measurement on the marked position of the pipeline center position by using the receiver 12 to obtain a final measured value.
S5, final verification, namely adjusting the receiver 12 to a minimum value, detecting the minimum value near the position marked by the central position of the pipeline, observing the position of the receiver 12 indicated by an arrow on the receiver 12 until the two arrows on the receiver 12 appear simultaneously to obtain the plane position of the cable, and comparing and verifying the plane position with the position marked by the central position of the pipeline.
The working principle of the embodiment of the application is as follows: by adopting data acquisition, the clamp device 2 can be placed in a well where a target pipeline is located, the probe 21 is arranged on the clamp device 2, the cable positioned at the top of the middle is clamped by placing the clamp device 2 in the well, the probe 21 detects electromagnetic wave signals in the well, the receiver 12 is started, a secondary field signal is received by the receiver 12 at a certain distance, and the buried depth of the underground pipeline is detected by an analysis computer.
The handheld data acquisition instrument and the measuring method based on underground pipeline mapping provided by the embodiment of the application mainly apply detection signals to metal pipelines by adopting a clamp induction method so as to overcome the detection difficulty caused by dense distance and overlarge burial depth with other pipelines, thereby ensuring the detection precision.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical scheme and the concept of the present application within the scope of the present application.
Claims (8)
1. The handheld data acquisition instrument based on underground pipeline mapping comprises a transmitter (11), a receiver (12) and a clamping device (2), and is characterized in that the transmitter (11) and the clamping device (2) are arranged on a base (1); a connecting wire (13) is connected between the transmitter (11) and the clamping device (2);
The clamping device (2) comprises a fixed ring (22) connected with the connecting wire (13) and a clamping part (23) arranged in the fixed ring (22) in a sliding manner; the fixing ring (22) is hollow, the fixing ring (22) is semicircular, an opening faces downwards, a driving assembly (24) for driving the clamping part (23) to move is arranged on one side of the fixing ring (22), the clamping part (23) is arc-shaped, one end of the clamping part (23) is slidably connected into the fixing ring (22), the other end of the clamping part (23) can be inserted into the fixing ring (22) and combined to form a circular ring, and when the fixing ring (22) and the clamping part (23) are combined to form a circular ring, a cable is clamped in the circular ring;
An arc-shaped guide groove (221) is formed in the outer side wall of the arc-shaped fixing ring (22); the driving assembly (24) comprises a driving motor (241) arranged on one side of the fixed ring (22), a gear (242) arranged on an output shaft of the driving motor (241) and a rack section (243) arranged on the outer side wall of the clamping part (23), the rack section (243) is in an arc shape, the rack section (243) is slidably connected in the guide groove (221), and the gear (242) is meshed with the rack section (243);
The base (1) is provided with a wire arranging device (3) for conveying and accommodating connecting wires (13); the wire arranging device (3) comprises an installing frame (31), a winding roller (32), a vertical plate (33) and a wire arranging assembly (34), wherein the installing frame (31) is fixed on the base (1) and is positioned on one side of the transmitter (11), the winding roller (32) is horizontally arranged, the winding roller (32) is rotationally connected onto the installing frame (31), a braking assembly (35) is arranged on the base (1) and is positioned on one side of the installing frame (31), the vertical plate (33) is fixedly arranged on the base (1), one side of the vertical plate (33) is aligned with the winding roller (32), and a horizontal guide hole (331) is formed in the vertical plate (33); the wire arranging assembly (34) comprises connecting blocks (341), a reciprocating screw (342), guide rods (343), sliding seats (344) and wire rollers (345), wherein the two connecting blocks (341) are arranged at two positions, close to two sides of the vertical plate (33), of the two connecting blocks (341), the reciprocating screw (342) and the guide rods (343) are horizontally arranged, the reciprocating screw (342) is rotationally connected between the two connecting blocks (341), the guide rods (343) are fixedly connected between the two connecting blocks (341), the reciprocating screw (342) and the guide rods (343) are arranged in parallel from top to bottom, the position, close to the upper side, of the sliding seat (344) penetrates through the reciprocating screw (342) and is in threaded connection with the reciprocating screw (342), the position, close to the lower side, of the sliding seat (344) penetrates through the guide rods (343) and is in sliding fit with the guide rods (343), threading holes (346) corresponding to the guide holes (331) are formed in the sliding seat (344), the wire rollers (345) are rotationally connected to one side, far away from the vertical plate (33), of the sliding seat (344), and the surfaces of the wire rollers (345) are higher than the threading holes (346) are arranged on the surfaces of the upper surfaces of the wire rollers (345. A linkage assembly (36) is arranged on the base (1) and is used for driving the reciprocating screw rod (342) to rotate;
The utility model discloses a wire winding roller, including wire winding roller (32), both ends fixed mounting has fixed disk (321) of coaxial setting wire winding roller (32) are last to install locating component (4), and locating component (4) are including fixed block (41), elastic piece (42) and locking bolt (43), fixed block (41) fixed mounting is on fixed disk (321) near transmitter (11) one side, and is located one side that this fixed disk (321) is close to another fixed disk (321), elastic piece (42) are provided with two, and one end of two elastic pieces (42) all keeps away from one side fixed connection of fixed disk (321) with fixed block (41), and two elastic pieces (42) set up along the direction of height interval of fixed block (41), locking bolt (43) are fixed in on two elastic pieces (42), the position between two elastic pieces (42) and locking bolt (43) is passed to the one end of connecting wire (13) for two elastic pieces (42) clamp the location to connecting wire (13).
2. A hand-held data acquisition device based on underground pipeline mapping according to claim 1, characterized in that one side of the fixed ring (22) is provided with a detection camera (6); the other side of the fixed ring (22) is provided with a laser pen (7).
3. A hand-held data acquisition device according to claim 1, characterised in that the height of the fixing ring (22) near the end of the drive assembly (24) is higher than the height of the fixing ring (22) away from the end of the drive assembly (24).
4. A hand-held data acquisition device based on underground line mapping according to claim 1, characterized in that the two ends of the rack section (243) are spaced apart from the two ends of the clamping part (23).
5. A hand-held data acquisition device based on underground pipeline mapping according to claim 1, characterized in that an adjusting wire frame (5) is arranged on one side of the base (1); the adjusting wire frame (5) comprises a fixed sleeve (51), a movable rod (52) which is connected in the fixed sleeve (51) in a sliding manner, and a wire ring (53) which is arranged at one end of the movable rod (52) far away from the base (1); the fixed sleeve (51) is connected with the movable rod (52) through a bolt; the connecting wire (13) passes through the fixed ring (22), one end of the connecting wire (13) is connected with the transmitter (11), and the other end of the connecting wire (13) is connected with the clamping device (2).
6. A method of measuring an underground line mapping based on the use of a data acquisition instrument according to any one of claims 1 to 5, characterized in that the method of measuring comprises the steps of:
S1, opening a well related to a target pipeline, and measuring the actual burial depth of the pipeline;
s2, placing a transmitter (11) near the wellhead of the well, placing a clamping device (2) in the well, and driving a clamping part (23) and a fixing ring (22) to clamp a cable through a driving assembly (24);
S3, detecting by a handheld receiver (12) according to the cable routing direction in the well, collecting electromagnetic wave signals, adjusting the frequency of the receiver (12) to enable the frequency to be consistent with the frequency of a secondary field generated by a target pipeline, and finding out the position with the maximum signal;
S4, positioning and marking the position with the maximum signal, then making 70% sounding, recording the positions with the depth of 70% on the left side and the right side of the position with the maximum signal, correcting the plane position to obtain the sum of the distances of the positions with the depth of 70% on the left side and the right side, taking the center of the sum of the distances as the center position of the pipeline, marking, and then carrying out depth measurement on the marked position of the center position of the pipeline by using a receiver (12) to obtain a final measured value.
7. The method of measuring based on underground pipeline mapping of claim 6, wherein the step of S2 further comprises:
After the cable is clamped, defining the center of the well as a circle center, taking the straight line where the cable in the well is located as a reference line, taking a point on the reference line and coinciding with the circle center and a point at a position 5m away from the circle center to form a positioning line segment, and rotating the positioning line segment to the left side and the right side of the positioning line segment by 30 degrees with the circle center as a rotation center to form a region to be measured.
8. The method of measuring based on underground pipeline mapping of claim 6, further comprising, after the step of S4:
s5, adjusting the receiver (12) to a minimum value, detecting the position near the pipeline center position mark by adopting the minimum value, observing the position of the mobile receiver (12) indicated by an arrow on the receiver (12) until the two arrows on the receiver (12) simultaneously appear to obtain the plane position of the cable, and comparing and verifying the plane position with the pipeline center position mark.
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| CN202110913941.4A CN113687426B (en) | 2021-08-10 | 2021-08-10 | Hand-held data acquisition instrument and measurement method based on underground pipeline mapping |
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