Combined positioning auxiliary device for underground pipeline surveying

Abstract

This invention provides a combined positioning auxiliary device for underground pipeline mapping, belonging to the field of ground-penetrating radar technology. It includes a positioning mechanism comprising a frame on which a ground-penetrating radar for locating underground pipelines is mounted. The frame has a fixed part for easy maneuvering, a support part for holding a computer, and a clamping part to prevent the computer from falling. A fixing frame is mounted on the side wall of the frame, and a rolling part for moving the ground-penetrating radar is mounted on the fixing frame. An adjustment mechanism includes a cylinder on the side wall of the frame and a second fixing tube. The cylinder has a groove. The fixed part has a pulling part, a following part, and a locking part. The second fixing tube has a linkage part, and a driving part. This invention, through the arrangement of the positioning mechanism, adjustment mechanism, and auxiliary mechanism, makes the location of underground pipelines by ground-penetrating radar more convenient.

Description

Technical Field

[0001] This invention belongs to the field of ground-penetrating radar technology, specifically relating to a combined positioning auxiliary device for underground pipeline mapping. Background Technology

[0002] The most widely used underground pipeline detection technology currently uses electromagnetic induction to locate underground pipelines. Ground penetrating radar is usually used when locating underground pipelines. Ground penetrating radar is divided into air-coupled type and ground-coupled type.

[0003] In existing technologies, when using air-coupled ground-penetrating radar to locate underground pipelines, the radar's rollers are fixed to both sides of the frame and cannot change direction, forcing the radar to move only in a straight line. Changing the radar's direction of movement is inconvenient. Furthermore, when locating underground pipelines in narrow spaces, it is impossible to control the radar to move laterally, resulting in poor adaptability of the radar to the working environment. Summary of the Invention

[0004] The purpose of this invention is to provide a combined positioning auxiliary device for underground pipeline mapping, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A combined positioning auxiliary device for underground pipeline mapping includes: a positioning mechanism comprising a frame, on which a ground-penetrating radar for locating underground pipelines is mounted; a fixed part on the frame for easy pushing by workers; a support part on the fixed part for placing a computer; a clamping part on the support part for preventing the computer from falling; a fixing frame mounted on the side wall of the frame; and a rolling part on the fixing frame for moving the ground-penetrating radar; an adjustment mechanism comprising a cylinder and a second fixing tube on the side wall of the frame; a groove on the cylinder; a pulling part on the fixed part; a following part on the pulling part; a locking part on the following part; a linkage part on the second fixing tube; and a driving part on the linkage part; and an auxiliary mechanism comprising a fixing seat on the side wall of the frame; a chamber and a second through-hole on the fixing seat; a limiting part inside the chamber; a stepping part on the limiting part; and a long rod on the rack.

[0006] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline surveying of the present invention, the fixing part includes a first support rod and a second support rod disposed on the frame, the first support rod is provided with a crossbar and a handle; the supporting part includes a support plate disposed on the second support rod, and a baffle is disposed on the support plate.

[0007] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the clamping part includes a first fixing tube disposed on the support plate, a first spring disposed inside the first fixing tube, a first sliding rod disposed on the first spring, and a clamping plate disposed on the first sliding rod.

[0008] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline surveying of the present invention, the rolling part includes a short rod disposed on the fixed frame, a rotating rod disposed on the short rod, a U-shaped block disposed on the rotating rod, and a roller disposed on the U-shaped block.

[0009] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the pulling part includes a turntable disposed on the first support rod, and a handle and a first pulling rope are disposed on the turntable; The follower part includes a fixing block and a slider disposed on the side wall of the frame. The fixing block is provided with a first through-hole. One end of the first pull rope passes through the second fixing tube and extends into the interior of the fixing block. A second pull rope is disposed on the first pull rope. One end of the first pull rope is connected to the middle position of the second pull rope. Both ends of the second pull rope are connected to the slider.

[0010] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the locking part includes a locking tube disposed on the side wall of the slider, one end of the locking tube is provided with a cut surface, a fixing rod is disposed on the side wall of the fixing block, the locking tube is sleeved on the side wall of the fixing rod, one end of the fixing rod is connected to a second spring, the second spring is located inside the locking tube, and both sides of the locking tube are in contact with the U-shaped block and the short rod, respectively.

[0011] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the linkage part includes a fixing ring disposed inside the second fixing pipe, a strip-shaped opening is provided on the side wall of the second fixing pipe, a third spring is provided on the fixing ring, a second sliding rod is connected to the end of the third spring away from the fixing ring, a follower block is provided on the side wall of the second sliding rod, the follower block is sleeved on the side wall of the second pull rope, and the follower block is located between the slider and the fixing block.

[0012] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the driving part includes a rack disposed on the second slide rod, and a toothed ring is disposed on the side wall of the rotating rod, the toothed ring meshing with the rack.

[0013] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the limiting part includes a fourth spring disposed inside the cavity, a T-shaped block disposed on the fourth spring, and an arc surface disposed on the T-shaped block.

[0014] As a preferred embodiment of the combined positioning auxiliary device for underground pipeline mapping of the present invention, the stepping part includes a vertical rod disposed on the T-shaped block, the bottom of the vertical rod extending to the bottom of the fixed base and connected to a foot pedal.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. With the addition of positioning, adjustment, and auxiliary mechanisms, compared to traditional air-coupled ground-penetrating radar, operators can manually control the rotation of the four rollers on the ground-penetrating radar as needed, causing the radar to rotate and thus adjusting its direction of movement. This makes it easier for operators to control the radar's position and improves work efficiency.

[0016] 2. The operator can rotate the orientation of all four rollers by 90° simultaneously. When working in a narrow space, the operator can move the ground penetrating radar laterally without moving their own position. After the rollers are rotated 90°, the current position of the rollers can be locked, ensuring that the operator can quickly determine that the rollers have rotated 90° when the ground penetrating radar needs to be moved laterally, further improving work efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a combined positioning auxiliary device for underground pipeline mapping; Figure 2 A schematic diagram of the interior of the first fixed pipe in a combined positioning auxiliary device for underground pipeline mapping; Figure 3 A schematic diagram of the fixing frame in a combined positioning auxiliary device for underground pipeline surveying; Figure 4 A schematic diagram of the U-shaped block and short rod in a combined positioning auxiliary device for underground pipeline mapping; Figure 5 A schematic diagram of the locking tube in a combined positioning auxiliary device for underground pipeline mapping.

[0019] Figure 6This is a schematic diagram of the interior of the second fixed pipe in a combined positioning auxiliary device for underground pipeline mapping.

[0020] Figure 7 A schematic diagram of the internal structure of the locking tube in a combined positioning auxiliary device for underground pipeline mapping.

[0021] Figure 8 A schematic diagram of the fixed base in a combined positioning auxiliary device for underground pipeline surveying.

[0022] Figure 9 This is a schematic diagram of the vertical rod and T-block in a combined positioning auxiliary device for underground pipeline surveying.

[0023] Figure 10 This is a schematic diagram of the chamber and the second penetration opening in a combined positioning auxiliary device for underground pipeline mapping.

[0024] In the diagram: 10. Frame; 11. Ground penetrating radar; 12. Fixing part; 121. First support rod; 122. Second support rod; 123. Crossbar; 124. Handle; 13. Support part; 131. Support plate; 132. Baffle; 14. Clamping part; 141. First fixing tube; 142. First spring; 143. First sliding rod; 144. Clamping plate; 15. Fixing frame; 16. Rolling part; 161. Short rod; 162. Rotating rod; 163. U-shaped block; 164. Roller; 20. Cylinder; 21. Second fixed tube; 22. Wire groove; 23. Pulling part; 231. Turntable; 232. Handle; 233. First pull rope; 24. Follower part; 241. Fixed block; 242. Slider; 243. First through-hole; 244. Second pull rope; 25. Locking part; 251. Locking tube; 252. Cross-section; 253. Fixed rod; 254. Second spring; 26. Linkage part; 261. Fixed ring; 262. Strip-shaped opening; 263. Third spring; 264. Second slide rod; 265. Follower block; 27. Driving part; 271. Rack; 272. Gear ring; 30. Fixed seat; 31. Chamber; 32. Second through-hole; 33. Restriction part; 331. Fourth spring; 332. T-block; 333. Curved surface; 34. Step part; 341. Vertical rod; 342. Pedal; 35. Long rod. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1 Reference Figure 1 - Figure 10This is the first embodiment of the present invention. This embodiment provides a combined positioning auxiliary device for underground pipeline mapping, which includes a positioning mechanism, an adjustment mechanism and an auxiliary mechanism. Compared with the traditional ground penetrating radar 11, the operator can adjust the orientation of the ground penetrating radar at any time when pushing it, which is convenient for the operator to change the orientation in real time. At the same time, it ensures that the ground penetrating radar 11 is not affected during the straight movement. During the ground exploration process, the operator can control the ground penetrating radar 11 to move laterally, which can adapt to more working scenarios.

[0027] Furthermore, the positioning mechanism facilitates the movement of the ground-penetrating radar 11 by staff, enabling the radar to locate underground pipelines. It includes a frame 10, on which the ground-penetrating radar 11 for locating underground pipelines is mounted. The frame 10 also has a fixing part 12 for easy movement by staff, a support part 13 for placing a computer, and a clamping part 14 to prevent the computer from falling. Two fixing frames 15 are installed on the side walls of the frame 10, located on opposite sides of the frame 10. Each fixing frame 15 has a rolling part 16 for moving the ground-penetrating radar 11.

[0028] Furthermore, the fixing part 12 includes a first support rod 121 and a second support rod 122 disposed on the frame 10. The first support rod 121 and the second support rod 122 are both bolted to the frame 10. There are two first support rods 121, and the second support rod 122 is located between the two first support rods 121. A crossbar 123 is disposed on the first support rod 121, and the second support rod 122 is installed at the middle position of the crossbar 123. A handle 124 is disposed on the first support rod 121.

[0029] When in use, the staff can move the frame 10 by holding the handle 124 or the crossbar 123 and pushing it with the first support rod 121 and the second support rod 122. As the frame 10 moves, it drives the ground penetrating radar 11 to locate underground pipelines. After the positioning work is completed, the staff can disassemble the first support rod 121 and the second support rod 122 to facilitate the storage of the equipment.

[0030] Furthermore, the support portion 13 includes a support plate 131 disposed on the second support rod 122, and a baffle 132 is disposed on the support plate 131.

[0031] It should be noted that the support plate 131 is placed at an angle, and the baffle 132 is located at the bottom of the support plate 131.

[0032] Furthermore, the clamping part 14 includes a first fixing tube 141 disposed on the support plate 131. A first spring 142 is disposed inside the first fixing tube 141. A first slide rod 143 is disposed on the first spring 142. There are two first slide rods 143, which are respectively located at the two ends of the first spring 142. A clamping plate 144 is disposed on the first slide rod 143, and the clamping plate 144 is located on both sides of the support plate 131.

[0033] In use, the operator pulls the two clamps 144, which causes the first slide rod 143 to move inside the first fixed tube 141. The first slide rod 143 causes the first spring 142 to extend, placing the computer and other display devices on the support plate 131. The bottom of the computer is blocked by the baffle 132. When the tension on the two clamps 144 is removed, the first spring 142 returns to its original position, causing the two first slide rods 143 to move. The first slide rods 143 then cause the clamps 144 to clamp the sides of the computer.

[0034] Furthermore, the rolling part 16 includes two short rods 161 disposed on the fixed frame 15. The two short rods 161 are located on both sides of the fixed frame 15 respectively. A rotating rod 162 is disposed on the short rod 161, a U-shaped block 163 is disposed on the rotating rod 162, and a roller 164 is disposed on the U-shaped block 163.

[0035] When in use, when the staff pushes the frame 10 to move, the frame 10 drives the fixed frame 15 to move, the fixed frame 15 drives the short rod 161 to move, the short rod 161 drives the rotating rod 162 to move, the rotating rod 162 drives the U-shaped block 163 to move, and the U-shaped block 163 drives the roller 164 to roll on the ground.

[0036] Furthermore, the adjustment mechanism facilitates the adjustment of the ground-penetrating radar 11's movement path by the staff during the movement of the frame 10. It includes a cylinder 20 and a second fixed tube 21 on the side wall of the frame 10. The cylinder 20 is located above the second fixed tube 21 and has a wire groove 22. The fixed part 12 has a pulling part 23, the pulling part 23 has a following part 24, the following part 24 has a locking part 25, the second fixed tube 21 has a linkage part 26, and the linkage part 26 has a driving part 27.

[0037] Furthermore, the pulling part 23 includes a turntable 231 disposed on the first support rod 121, and a handle 232 and a first pull rope 233 disposed on the turntable 231, the first pull rope 233 being located inside the wire groove 22.

[0038] When in use, when the operator holds the handle 124 and the grip bar 232 at the same time, the grip bar 232 can drive the turntable 231 to rotate, and the turntable 231 can drive the first pull rope 233 to move when it rotates.

[0039] Furthermore, the follower 24 includes a fixing block 241 and a slider 242 disposed on the side wall of the frame 10. There are two fixing blocks 241, which are located on both sides of the frame 10 respectively. The fixing blocks 241 are located below the first fixing tube 141. The slider 242 can move on the side wall of the frame 10. The fixing block 241 is provided with a first through-hole 243. One end of the first pull rope 233 passes through the second fixing tube 21 and extends into the interior of the fixing block 241. A second pull rope 244 is provided on the first pull rope 233. Part of the second pull rope 244 is located inside the first through-hole 243. One end of the first pull rope 233 is connected to the middle position of the second pull rope 244. Both ends of the second pull rope 244 are connected to the slider 242.

[0040] When in use, when the first pull rope 233 is pulled, the first pull rope 233 drives the second pull rope 244 to move upward, so that the second pull rope 244 drives the two sliders 242 to move together.

[0041] Furthermore, the locking part 25 includes a locking tube 251 disposed on the side wall of the slider 242. One end of the locking tube 251 is provided with a cut surface 252. A fixing rod 253 is disposed on the side wall of the fixing block 241. There are two fixing rods 253, which are located on both sides of the fixing block 241. The locking tube 251 is sleeved on the side wall of the fixing rod 253. One end of the fixing rod 253 is connected to a second spring 254, which is located inside the locking tube 251. The two sides of the locking tube 251 are in contact with the U-shaped block 163 and the short rod 161, respectively.

[0042] It should be noted that, in the initial state, the locking tube 251 is located between the U-shaped block 163 and the short rod 161. By setting the cut surface 252, the locking tube 251 can be inserted more smoothly between the U-shaped block 163 and the short rod 161.

[0043] When in use, when the slider 242 moves, the slider 242 can drive the locking tube 251 to move together. The locking tube 251 drives the second spring 254 to contract, which eventually causes the locking block to disengage from the U-shaped block 163 and the short rod 161. At this time, the rotating rod 162 can rotate to control the orientation of the roller 164, making it easier for staff to quickly locate underground pipelines.

[0044] Furthermore, the linkage 26 includes a fixing ring 261 disposed inside the second fixing tube 21. A strip-shaped opening 262 is provided on the side wall of the second fixing tube 21, and the strip-shaped opening 262 is located above the second pull rope 244. A third spring 263 is provided on the fixing ring 261. The end of the third spring 263 away from the fixing ring 261 is connected to a second slide rod 264. One end of the second slide rod 264 is located inside the second fixing tube 21, and the other end of the second slide rod 264 is located outside the second fixing tube 21. A follower block 265 is provided on the side wall of the second slide rod 264. The follower block 265 is sleeved on the side wall of the second pull rope 244 and is located between the slider 242 and the fixing block 241.

[0045] In use, when the second pull rope 244 moves the slider 242 to the follower block 265, the slider 242 continues to move and will move the follower block 265 together. The follower block 265 drives the second slide rod 264 to move, and the second slide rod 264 drives the third spring 263 to contract.

[0046] Furthermore, the drive unit 27 includes a rack 271 disposed on the second slide bar 264, and a toothed ring 272 disposed on the side wall of the rotating rod 162, the toothed ring 272 meshing with the rack 271.

[0047] When in use, the second slide bar 264 moves, causing the rack 271 to move together. When the rack 271 moves, it causes the toothed ring 272 to rotate. The toothed ring 272 rotates together with the rotating rod 162. The rotating rod 162 drives the U-shaped block 163 to rotate. The U-shaped block 163 drives the roller 164 to rotate. When the slider 242 separates from the follower block 265, the toothed ring 272 and the rack 271 return to their initial state.

[0048] Furthermore, the auxiliary mechanism can lock and unlock the position of the roller 164 after it has been rotated 90°, which facilitates the operation of the staff and ensures that the ground penetrating radar 11 can be moved laterally, further improving the operability of the ground penetrating radar 11 and making the ground penetrating radar 11 more adaptable to the working environment. It includes a fixed seat 30 set on the side wall of the frame 10. The fixed seat 30 is located below the crossbar 123 and in the middle of the frame 10. The fixed seat 30 is provided with a chamber 31 and a second through opening 32, which are interconnected. The chamber 31 is provided with a limiting part 33, and a stepping part 34 is provided on the limiting part 33. A long rod 35 is provided on the rack 271, and the long rod 35 is located between the two racks 271. The long rod 35 is connected to the two racks 271 respectively.

[0049] It should be noted that when the rack 271 moves, it drives the long rod 35 to move together. After the U-shaped block 163 rotates 90°, one side of the long rod 35 contacts the fixed frame 15.

[0050] Furthermore, the limiting part 33 includes a fourth spring 331 disposed inside the chamber 31. There are multiple fourth springs 331, which are evenly distributed inside the chamber 31. A T-shaped block 332 is disposed on the fourth spring 331, and an arc surface 333 is disposed on the T-shaped block 332.

[0051] In use, as the rack 271 moves together with the long rod 35, it can compress the arc surface 333 on the T-block 332, causing the T-block 332 to descend while simultaneously causing the fourth spring 331 to contract. After the long rod 35 has completely passed the T-block, the fourth spring 331 recovers and causes the T-block 332 to rise, thus restricting the long rod 35. At this time, the rack ring 272 causes the U-block 163 to rotate 90°, allowing the staff to move the frame 10 laterally. The frame 10 then causes the ground penetrating radar 11 to move laterally, making it easier for the staff to locate underground pipelines.

[0052] Furthermore, the foot pedal 34 includes two vertical rods 341 disposed on the T-shaped block 332. The tops of the two vertical rods 341 are connected to the bottom of the T-shaped block 332, and the bottoms of the vertical rods 341 extend to the bottom of the fixed seat 30 and are connected to the pedal 342.

[0053] When in use, after the frame 10 has moved laterally, the operator steps on the pedal 342, which causes the pedal 342 to drive the vertical rod 341 to descend. The vertical rod 341 then drives the T-block 332 to descend, causing the fourth spring 331 to contract. This releases the T-block 332 from the restriction on the long rod 35, making it easier for the rack 271 to return to its initial state and for the gear ring 272 to return to its initial state. At the same time, this also allows the roller 164 to return to its initial state.

[0054] Working principle: When it is necessary to locate underground pipelines, the staff first places the ground penetrating radar 11 inside the frame 10. Then, the first support rod 121 and the second support rod 122 are bolted to the frame 10. The computer is placed on the support plate 131. The computer is fixed by the first fixing tube 141, the first spring 142, the first sliding rod 143 and the clamping plate 144. The staff pushes the handle 124, which drives the first support rod 121. The first support rod 121 drives the frame 10, and the frame 10 drives the roller 164 to move on the ground. The underground pipeline is located by the ground penetrating radar 11 on the frame 10 (the principle of the ground penetrating radar 11 for locating underground pipelines is existing technology and will not be described in detail here).

[0055] Because the positions of the four rollers 164 are fixed, the frame 10 can only move in a straight line when the operator pushes the handle 124. When encountering a turning section, the operator can simultaneously hold the handle 124 and the grip bar 232, causing the grip bar 232 to drive the turntable 231 to rotate. The turntable 231 drives the first pull rope 233, which in turn drives the second pull rope 244. The second pull rope 244 drives the slider 242 to move, and the slider 242 drives the locking tube 251 from the short rod 161 and the U-shaped block 16. When the internal mechanism of roller 164 is released, the locking tube 251 causes the second spring 254 to contract, thus releasing the locking tube 251 from restricting the roller 164. At this time, the slider 242 contacts the follower block 265. When the slider 242 continues to move, it causes the follower block 265 to move, which in turn causes the second slide rod 264 to move. The second slide rod 264 causes the third spring 263 to contract, and as it moves, it causes the rack 271 to move. The rack 271 then causes the gear ring 272 to move. Rotation causes the gear ring 272 to drive the rotating rod 162 to rotate, which in turn drives the U-shaped block 163 to rotate. The U-shaped block 163 then drives the roller 164 to rotate. At this time, the operator can push the handle 124 to rotate the frame 10, thereby adjusting its orientation. Once the frame 10 is in position, the operator releases the handle 232, and the second spring 254 and the third spring 263 return to their original positions. The second spring 254 drives the locking tube 251 closer to the U-shaped block 163, and the third spring... Spring 263 drives the second slide bar 264 to move, the second slide bar 264 drives the rack 271 and follower block 265 to move together, the rack 271 drives the gear ring 272 to rotate, so that the roller 164 returns to the initial state. At this time, the third spring 263 returns to the initial state, the second spring 254 drives the locking tube 251 to continue to move, the locking tube 251 drives the slider 242 to move, and finally the locking block is inserted between the U-shaped block 163 and the short rod 161, and the position of the roller 164 is restricted again.

[0056] When the frame 10 needs to be moved laterally, the operator continues to hold the handle 124 and grip bar 232, causing the second slide bar 264 to drive the rack 271. The rack 271 drives the long rod 35 to move. During the movement, the long rod 35 compresses the arc surface 333, causing the T-block 332 to descend. The T-block 332 drives the fourth spring 331 to contract. When the long rod 35 contacts the side wall of the fixed frame 15, the fourth spring 331 returns to its original position, causing the T-block 332 to complete the restriction of the long rod 35. At this time, the U-block 163 drives the roller 164 to rotate 90° around the rotating rod 162. At this time, even if the operator releases the grip bar 232, the second spring 254 and the third spring 263 cannot return to their original positions, and the operator can push the frame 10. The frame 10 moves laterally. After the lateral movement is complete, the worker steps on the pedal 342, causing the tower plate to lower the vertical rod 341. The vertical rod 341 then lowers the T-block 332, which in turn causes the fourth spring 331 to retract. When the T-block 332 descends below the long rod 35, the long rod 35 is no longer restricted. At this point, the second spring 254 and the third spring 263 return to normal, allowing the roller 164 to return to its initial state. The locking tube 251 is then reinserted between the U-block 163 and the short rod 161. The worker can then remove the pedal 342 and continue pushing or pulling the handle 124 to control the frame 10 to move linearly and continue locating the underground pipeline.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A combined positioning auxiliary device for underground pipeline surveying, characterized in that: include, The positioning mechanism includes a frame (10), on which a ground-penetrating radar (11) for locating underground pipelines is provided. The frame (10) is provided with a fixing part (12) for easy pushing by staff. The fixing part (12) is provided with a support part (13) for placing a computer. The support part (13) is provided with a clamping part (14) for preventing the computer from falling. A fixing frame (15) is installed on the side wall of the frame (10). The fixing frame (15) is provided with a rolling part (16) for moving the ground-penetrating radar (11). The adjustment mechanism includes a cylinder (20) on the side wall of the frame (10) and a second fixed tube (21). The cylinder (20) is provided with a wire groove (22). The fixed part (12) is provided with a pulling part (23). The pulling part (23) is provided with a follower part (24). The follower part (24) is provided with a locking part (25). The second fixed tube (21) is provided with a linkage part (26). The linkage part (26) is provided with a driving part (27). The auxiliary mechanism includes a fixed seat (30) disposed on the side wall of the frame (10), the fixed seat (30) being provided with a chamber (31) and a second through opening (32), the chamber (31) being provided with a limiting part (33), the limiting part (33) being provided with a stepping part (34), and the rack (271) being provided with a long rod (35).

2. The combined positioning auxiliary device for underground pipeline mapping according to claim 1, characterized in that: The fixing part (12) includes a first support rod (121) and a second support rod (122) disposed on the frame (10). A crossbar (123) is disposed on the first support rod (121), and a handle (124) is disposed on the first support rod (121). The support part (13) includes a support plate (131) disposed on the second support rod (122), and a baffle (132) is disposed on the support plate (131).

3. The combined positioning auxiliary device for underground pipeline mapping according to claim 2, characterized in that: The clamping part (14) includes a first fixing tube (141) disposed on the support plate (131), a first spring (142) is disposed inside the first fixing tube (141), a first slide rod (143) is disposed on the first spring (142), and a clamping plate (144) is disposed on the first slide rod (143).

4. The combined positioning auxiliary device for underground pipeline mapping according to claim 3, characterized in that: The rolling part (16) includes a short rod (161) disposed on the fixed frame (15), a rotating rod (162) disposed on the short rod (161), a U-shaped block (163) disposed on the rotating rod (162), and a roller (164) disposed on the U-shaped block (163).

5. A combined positioning auxiliary device for underground pipeline mapping according to claim 4, characterized in that: The pulling part (23) includes a turntable (231) disposed on the first support rod (121), and a handle (232) and a first pull rope (233) are disposed on the turntable (231). The follower (24) includes a fixing block (241) and a slider (242) disposed on the side wall of the frame (10). The fixing block (241) is provided with a first through hole (243). One end of the first pull rope (233) passes through the second fixing tube (21) and extends into the interior of the fixing block (241). A second pull rope (244) is disposed on the first pull rope (233). One end of the first pull rope (233) is connected to the middle position of the second pull rope (244). Both ends of the second pull rope (244) are connected to the slider (242).

6. The combined positioning auxiliary device for underground pipeline mapping according to claim 5, characterized in that: The locking part (25) includes a locking tube (251) disposed on the side wall of the slider (242). One end of the locking tube (251) is provided with a cut surface (252). A fixing rod (253) is disposed on the side wall of the fixing block (241). The locking tube (251) is sleeved on the side wall of the fixing rod (253). One end of the fixing rod (253) is connected to a second spring (254). The second spring (254) is located inside the locking tube (251). The two sides of the locking tube (251) are in contact with the U-shaped block (163) and the short rod (161) respectively.

7. A combined positioning auxiliary device for underground pipeline mapping according to claim 6, characterized in that: The linkage part (26) includes a fixing ring (261) disposed inside the second fixing tube (21). A strip-shaped opening (262) is provided on the side wall of the second fixing tube (21). A third spring (263) is provided on the fixing ring (261). A second slide rod (264) is connected to one end of the third spring (263) away from the fixing ring (261). A follower block (265) is provided on the side wall of the second slide rod (264). The follower block (265) is sleeved on the side wall of the second pull rope (244). The follower block (265) is located between the slider (242) and the fixing block (241).

8. A combined positioning auxiliary device for underground pipeline mapping according to claim 7, characterized in that: The drive unit (27) includes a rack (271) disposed on the second slide bar (264), and a toothed ring (272) is disposed on the side wall of the rotating rod (162), the toothed ring (272) meshing with the rack (271).

9. A combined positioning auxiliary device for underground pipeline mapping according to claim 8, characterized in that: The limiting part (33) includes a fourth spring (331) disposed inside the chamber (31), a T-shaped block (332) disposed on the fourth spring (331), and an arc surface (333) disposed on the T-shaped block (332).

10. A combined positioning auxiliary device for underground pipeline mapping according to claim 9, characterized in that: The foot pedal (34) includes a vertical rod (341) disposed on the T-shaped block (332), the bottom of which extends to the bottom of the fixed seat (30) and is connected to a foot pedal (342).

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