Gas buried pipeline positioning measurement equipment and method

Abstract

The invention relates to the technical field of buried pipeline measurement, and discloses a gas buried pipeline positioning measurement device and method.The gas buried pipeline positioning measurement device comprises a ground body, in the moving process of a threaded plate, a bent rod is driven to move, the bent rod drives a piston plate to move, and in the moving process of the piston plate, preservative liquid in a liquid storage tank can be extruded; the preservative liquid enters the annular shell through the round pipe, the impact force generated when the preservative liquid is sprayed out and the weight of the preservative liquid can make the sector plate rotate, the sector plate drives the rotating ring to rotate, and therefore the preservative liquid enters the liquid discharging shell through the liquid discharging holes and enters the liquid discharging pipe through the liquid discharging shell; and the anti-corrosion liquid is sprayed to the top of the inner wall of the pipeline body through the liquid discharging pipe, so that anti-corrosion protection is conducted on the interior of the pipeline body, the pipeline body is prevented from being corroded due to the influence of underground humidity and temperature, the protection effect of the device on the pipeline body is enhanced, and the service life of the pipeline body is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of buried pipeline measurement, and in particular to a positioning and measuring device and method for a buried gas pipeline. Background Art

[0002] At present, with the continuous progress of society, natural gas has gradually entered people's lives as a stable fuel, and the pipelines used to transport natural gas are buried underground. Therefore, laying natural gas pipelines is an important part of urban construction. A pipeline three-dimensional posture measuring instrument is needed in the laying process. The pipeline three-dimensional posture measuring instrument is a measuring instrument that uses inertial navigation combination technology to measure and record the three-dimensional coordinates of the pipeline, and exports the data through a communication interface to cooperate with software to output data and graphics. In the prior art, the use of the pipeline three-dimensional posture measuring instrument requires that one end of the pipeline be fixed to one end of the pipeline three-dimensional posture measuring instrument with a traction rope wound on a winding roller, and then the other end of the pipeline is also fixed to the other end of the pipeline three-dimensional posture measuring instrument with a traction rope wound on another winding roller, and then by winding one winding roller and unwinding the other winding roller, the pipeline three-dimensional posture measuring instrument can be pulled to move along the length direction of the pipeline.

[0003] However, during the measurement process, since the pipeline is located underground, the inside of the pipeline will be corroded by the humid environment, generating water vapor to corrode the pipeline. When the measuring instrument is moving inside the pipeline for measurement, the interference of water vapor may affect the measurement of the measuring instrument and cause damage to the measuring instrument. Summary of the invention

[0004] The purpose of the present invention is to provide a gas buried pipeline positioning measurement device and method to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention relates to a gas buried pipeline positioning and measuring device and method, comprising a ground body, the inner wall of the ground body being sleeved and in contact with the pipeline body, the top of the ground body being in contact with a winding roller frame, and also comprising a positioning and measuring mechanism, the positioning and measuring mechanism comprising a pull rope slidably connected to the outer wall of the winding roller frame, one end of the pull rope being fixedly connected to a vehicle body, the end of the pull rope away from the vehicle body being fixedly connected to a measuring instrument body, and a clamping assembly being arranged on the inner wall of the vehicle body.

[0006] Furthermore, the clamping assembly includes a motor fixedly connected to one side of the inner wall of the vehicle body, the output end of the motor is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the vehicle body and extends to the outside of the vehicle body, the outer wall of the end of the rotating shaft away from the motor is threaded, and the middle end outer wall of the rotating shaft is sleeved and threadedly connected with a threaded plate.

[0007] Furthermore, two ends of one side of the threaded plate are respectively penetrated and slidably connected with a limiting bending rod, one end of the limiting bending rod is fixedly connected to one side of the outer wall of the vehicle body, two ends of one side of the threaded plate are respectively fixedly connected with an extrusion block, one end of the limiting bending rod away from the vehicle body is fixedly connected with a first magnetic ring, and one side of the inner wall of the first magnetic ring is respectively fixedly connected with a clamping rod.

[0008] Furthermore, a card plate sleeve is sleeved and rotatably connected to the outer wall of the middle end of the clamping rod, and connecting springs are fixedly connected to both sides of the card plate sleeve. One end of the connecting spring is fixedly connected to the inner wall of the first magnetic ring. The side of the first magnetic ring away from the limiting bending rod is in contact with the second magnetic ring, and a clamping groove is opened on the inner wall of the second magnetic ring.

[0009] Furthermore, a care component is provided on the outer wall of the threaded plate, and the care component includes a bent rod fixedly connected to the top and bottom of the threaded plate, and the end of the bent rod away from the threaded plate is fixedly connected to the piston plate, and the outer wall of the piston plate is sleeved and slidably connected to a liquid storage tank, and one side of the outer wall of the liquid storage tank is fixedly connected to one side of the outer wall of the vehicle body.

[0010] Furthermore, one end of the outer wall of the liquid storage tank is connected to a circular tube, and the end of the circular tube away from the liquid storage tank is connected to an annular shell, and a plurality of connecting blocks are fixedly connected to one side of the annular shell near the circular tube. One end of the connecting block away from the annular shell is fixedly connected to one side of the outer wall of the vehicle body, and a rotating ring is sleeved on the inner wall of the annular shell and rotatably connected.

[0011] Furthermore, a plurality of fan-shaped plates are fixedly connected to the outer wall of the rotating ring, the outer walls of the fan-shaped plates are in contact with the inner wall of the annular shell, a plurality of drainage holes are provided at the bottom end of the outer wall of the annular shell, a drainage shell is sleeved and fixedly connected to the outer wall of the annular shell, a plurality of drainage pipes are connected to the top end of the outer wall of the drainage shell, and an annular hole is provided on one side of the annular shell.

[0012] Furthermore, an auxiliary component is provided on one side of the rotating ring, and the auxiliary component includes a plurality of connecting rods fixedly connected around one side of the rotating ring, the outer wall of one end of the connecting rod is slidably connected to the inner wall of the annular hole, and the end of the connecting rod away from the rotating ring is fixedly connected to a fixing ring, and a sponge ring is sleeved and fixedly connected to the outer wall of the fixing ring.

[0013] Furthermore, a plurality of strip plates are fixedly connected to the top of the inner wall of the fixing ring close to the connecting rod, a polyvinylidene fluoride sleeve is fixedly connected to the top of the end of the strip plate away from the fixing ring, and a sponge bent plate is fixedly connected to the bottom of the end of the strip plate away from the polyvinylidene fluoride sleeve.

[0014] A gas buried pipeline positioning measurement device and method, a gas buried pipeline positioning measurement method, comprising the following steps: Step 1: Place the measuring instrument body at one end of the pipeline body, and place the vehicle body at the other end of the pipeline body, drive the vehicle body to move, and start the motor under the setting of the first magnetic ring and the second magnetic ring. The motor drives the rotating shaft to rotate, and under the setting of the limit bending rod, the rotating shaft drives the threaded plate to move during the rotation of the rotating shaft, and the threaded plate drives the extrusion block to move. When the extrusion block comes into contact with the card plate sleeve, the card plate sleeve rotates; Step 2: During the movement of the threaded plate, the bent rod is driven to move, and the bent rod drives the piston plate to move. Through the arrangement of the circular tube and the annular shell, the sector plate drives the rotating ring to rotate; Step 3: During the rotation of the rotating ring, the rotating ring drives the connecting rod to rotate, the connecting rod drives the fixed ring to rotate, the fixed ring drives the sponge ring to rotate, and the fixed ring drives the strip plate to rotate, the strip plate drives the sponge bent plate to rotate, and at the same time the strip plate drives the polyvinylidene fluoride sleeve to rotate.

[0015] The present invention has the following beneficial effects: (1) In the present invention, during the movement of the threaded plate, the bent rod is driven to move, and the bent rod drives the piston plate to move. During the movement of the piston plate, the anti-corrosion liquid inside the liquid storage tank can be squeezed, and the anti-corrosion liquid enters the interior of the annular shell through the circular tube. The impact force of the anti-corrosion liquid when it is sprayed out and its own weight can cause the fan-shaped plate to rotate, and the fan-shaped plate drives the rotating ring to rotate, so that the anti-corrosion liquid enters the interior of the drainage shell through the drainage hole, and the anti-corrosion liquid enters the interior of the drainage pipe through the drainage shell. The anti-corrosion liquid is sprayed toward the top of the inner wall of the pipeline body through the drainage pipe, thereby protecting the interior of the pipeline body from corrosion, preventing the pipeline body from being corroded by the influence of the underground humid temperature, enhancing the protection effect of the device on the pipeline body, and improving the service life of the pipeline body.

[0016] (2) In the present invention, the measuring instrument body is placed at one end of the pipeline body, and the vehicle body is placed at the other end of the pipeline body, and the vehicle body is driven to move, and the vehicle body drives the first magnetic ring to move. When it moves to one end of the pipeline body, the first magnetic ring and the second magnetic ring are magnetically attracted, and then the vehicle body is driven to return, so that the measuring instrument body can measure the length of the pipeline body, and at the same time, the motor is started, and the motor drives the rotating shaft to rotate. The rotating shaft is limited by the limit bending rod, and the threaded plate is driven to move during the rotation of the rotating shaft. The threaded plate drives the extrusion block to move. When the extrusion block moves to a certain position, it pushes the card plate sleeve, and the card plate sleeve is squeezed, so that the card plate sleeve rotates around the card rod. One end of the card plate sleeve enters the card slot set in the second magnetic ring during the rotation, so that the connection effect between the first magnetic ring and the second magnetic ring is better, and the measuring instrument body is prevented from falling during the movement, thereby enhancing the protection effect of the device on the measuring instrument body and improving the service life of the device.

[0017] (3) In the present invention, during the rotation of the rotating ring, the rotating ring drives the connecting rod to rotate, the connecting rod drives the fixed ring to rotate, the fixed ring drives the sponge ring to rotate, and during the rotation of the sponge ring, the anti-corrosion liquid sprayed on the inner wall of the pipeline body is applied, so that the anti-corrosion liquid can be evenly applied to each position of the inner wall of the pipeline body, further enhancing the protective effect of the device on the pipeline body, and the fixed ring drives the strip plate to rotate, the strip plate drives the sponge bent plate to rotate, and the sponge bent plate contacts the outer surface of the measuring instrument body during the rotation, thereby cleaning the outer surface of the measuring instrument body to prevent the measuring instrument body from being corroded by underground moist water molecules when placed inside the pipeline body, thereby enhancing the protective effect of the device on the measuring instrument body and making the measurement result of the measuring instrument body more accurate. At the same time, the strip plate drives the polyvinylidene fluoride sleeve to rotate, and when passing through the turning point inside the pipeline body, it can protect the outer surface of the measuring instrument body to prevent the measuring instrument body from being damaged by collision.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall top view structure of the present invention; Figure 2 It is a schematic diagram of the overall side half-section structure of the present invention; Figure 3 It is a schematic diagram of the internal half-section structure of the present invention; Figure 4 It is a schematic diagram of the internal side structure of the present invention; Figure 5 It is a schematic diagram of the side half-section structure of the auxiliary component of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the nursing component of the present invention; Figure 7 For the present invention Figure 3 A magnified view of middle; Figure 8 For the present invention Figure 5 Enlarged view of middle B; Fig. 9 It is a schematic flow chart of the operating method of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, ground body; 3, winding roller frame; 2, pipeline body; 4, positioning and measuring mechanism; 41, pull rope; 42, vehicle body; 43, measuring instrument body; 45, clamping assembly; 46, care assembly; 47, auxiliary assembly; 451, motor; 454, rotating shaft; 455, limit bending rod; 456, threaded plate; 457, extrusion block; 458, first magnetic ring; 459, clamping rod; 452, connecting spring; 4510, clamping plate sleeve; 4511, second magnetic ring ring; 4512, slot; 461, bent rod; 462, liquid storage tank; 463, piston plate; 4612, round tube; 464, annular shell; 4611, connecting block; 465, rotating ring; 466, fan-shaped plate; 467, drainage hole; 468, annular hole; 469, drainage shell; 4610, drainage pipe; 471, connecting rod; 472, fixed ring; 473, sponge ring; 474, strip plate; 475, polyvinylidene fluoride sleeve; 476, sponge bent plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1, please refer to Figure 1-Figure 9 As shown, the present invention is a gas buried pipeline positioning and measuring device and method, comprising a ground body 1, the inner wall of the ground body 1 is sleeved with and in contact with a pipeline body 2, and the top of the ground body 1 is in contact with a winding roller frame 3, the purpose of such arrangement is to lay out the line, and also includes; The positioning and measuring mechanism 4 includes a pull rope 41 slidably connected to the outer wall of the winding roller frame 3, one end of the pull rope 41 is fixedly connected to the vehicle body 42, and the end of the pull rope 41 away from the vehicle body 42 is fixedly connected to the measuring instrument body 43, and the inner wall of the vehicle body 42 is provided with a clamping assembly 45.

[0024] The clamping assembly 45 includes a motor 451 fixedly connected to one side of the inner wall of the vehicle body 42, and the output end of the motor 451 is fixedly connected to a rotating shaft 454, one end of the rotating shaft 454 passes through the vehicle body 42 and extends to the outside of the vehicle body 42, and the outer wall of one end of the rotating shaft 454 away from the motor 451 is threaded, and the middle end outer wall of the rotating shaft 454 is sleeved and threadedly connected with a threaded plate 456.

[0025] The two ends of one side of the threaded plate 456 are respectively penetrated and slidably connected with a limiting bent rod 455. The purpose of this arrangement is to enable the threaded plate 456 to perform translational movement. One end of the limiting bent rod 455 is fixedly connected to the outer wall of the vehicle body 42, and the two ends of one side of the threaded plate 456 are respectively fixedly connected with an extrusion block 457. The end of the limiting bent rod 455 away from the vehicle body 42 is fixedly connected with a first magnetic ring 458, and the inner wall of the first magnetic ring 458 is respectively fixedly connected with a clamping rod 459. The purpose of this arrangement is to prevent the clamping plate sleeve 4510 from falling off.

[0026] A card plate sleeve 4510 is sleeved on the outer wall of the middle end of the clamping rod 459 and rotatably connected. Connecting springs 452 are fixedly connected to both sides of the card plate sleeve 4510. The purpose of this arrangement is to fix the card plate sleeve 4510 in the absence of external force. One end of the connecting spring 452 is fixedly connected to the inner wall of the first magnetic ring 458. The side of the first magnetic ring 458 away from the limiting bending rod 455 is in contact with the second magnetic ring 4511, and a clamping groove 4512 is provided on the inner wall of the second magnetic ring 4511.

[0027] The measuring instrument body 43 is placed at one end of the pipe body 2, and the vehicle body 42 is placed at the other end of the pipe body 2, and the vehicle body 42 is driven to move, and the vehicle body 42 drives the first magnetic ring 458 to move. When it moves to one end of the pipe body 2, the first magnetic ring 458 and the second magnetic ring 4511 are magnetically attracted, and then the vehicle body 42 is driven to return, so that the measuring instrument body 43 can measure the length of the pipe body 2, and at the same time, the motor 451 is started, and the motor 451 drives the rotating shaft 454 to rotate. The rotating shaft 454 is limited by the limit bending rod 455, and the threaded plate 456 is driven during the rotation of the rotating shaft 454. The threaded plate 456 drives the extrusion block 457 to move. When the extrusion block 457 moves to a certain position, it pushes the card plate sleeve 4510. The card plate sleeve 4510 is squeezed, so that the card plate sleeve 4510 rotates around the card rod 459. One end of the card plate sleeve 4510 enters into the slot 4512 provided in the second magnetic ring 4511 during the rotation, so that the connection effect between the first magnetic ring 458 and the second magnetic ring 4511 is better, which prevents the measuring instrument body 43 from falling off during the movement, enhances the protection effect of the device on the measuring instrument body 43, and improves the service life of the device.

[0028] During the movement of the threaded plate 456, the bent rod 461 is driven to move, and the bent rod 461 drives the piston plate 463 to move. During the movement of the piston plate 463, the anti-corrosion liquid inside the liquid storage tank 462 can be squeezed, and the anti-corrosion liquid enters the annular shell 464 through the circular tube 4612. The impact force of the anti-corrosion liquid when it is sprayed out and its own weight can cause the fan-shaped plate 466 to rotate, and the fan-shaped plate 466 drives the rotating ring 465 to rotate, so that the anti-corrosion liquid enters the interior of the drainage shell 469 through the drainage hole 467, and the anti-corrosion liquid enters the interior of the drainage shell 469 through the drainage shell 469. The anti-corrosion liquid enters the interior of the drainage pipe 4610 through the drainage shell 469, and the anti-corrosion liquid is sprayed toward the top of the inner wall of the pipeline body 2 through the drainage pipe 4610, thereby providing anti-corrosion protection for the interior of the pipeline body 2, preventing the pipeline body 2 from being corroded by the influence of the underground humid temperature, enhancing the protection effect of the device on the pipeline body 2, and improving the service life of the pipeline body 2.

[0029] In embodiment 2, a care component 46 is provided on the outer wall of the threaded plate 456, and the care component 46 includes a bent rod 461 fixedly connected to the top and bottom of the threaded plate 456, and one end of the bent rod 461 away from the threaded plate 456 is fixedly connected to a piston plate 463, and the outer wall of the piston plate 463 is sleeved and slidably connected to a liquid storage tank 462, and one side of the outer wall of the liquid storage tank 462 is fixedly connected to one side of the outer wall of the vehicle body 42.

[0030] One end of the outer wall of the liquid storage tank 462 is connected to a circular tube 4612, and the end of the circular tube 4612 away from the liquid storage tank 462 is connected to an annular shell 464. A plurality of connecting blocks 4611 are fixedly connected to one side of the outer wall of the vehicle body 42 at one end of the connecting block 4611 away from the annular shell 464, and a rotating ring 465 is sleeved on the inner wall of the annular shell 464 and rotatably connected thereto.

[0031] Several fan-shaped plates 466 are fixedly connected to the outer wall of the rotating ring 465. The purpose of this arrangement is to enable the fan-shaped plates 466 to fully withstand the impact force of the preservative liquid through the design of the fan blade shape. The outer wall of the fan-shaped plate 466 contacts the inner wall of the annular shell 464. A plurality of drainage holes 467 are provided at the bottom end of the outer wall of the annular shell 464. A drainage shell 469 is sleeved and fixedly connected to the outer wall of the annular shell 464. A plurality of drainage pipes 4610 are connected to the top of the outer wall of the drainage shell 469. An annular hole 468 is provided on one side of the annular shell 464.

[0032] An auxiliary component 47 is provided on one side of the rotating ring 465, and the auxiliary component 47 includes a plurality of connecting rods 471 fixedly connected around one side of the rotating ring 465, and the outer wall of one end of the connecting rod 471 is slidably connected to the inner wall of the annular hole 468, and the end of the connecting rod 471 away from the rotating ring 465 is fixedly connected to a fixing ring 472, and the outer wall of the fixing ring 472 is sleeved and fixedly connected with a sponge ring 473.

[0033] A plurality of strip plates 474 are fixedly connected to the top of the inner wall of the fixing ring 472 close to the connecting rod 471, and a polyvinylidene fluoride sleeve 475 is fixedly connected to the top of one end of the strip plate 474 away from the fixing ring 472. The purpose of this arrangement is to protect the measuring instrument body 43, and a sponge bent plate 476 is fixedly connected to the bottom of one end of the strip plate 474 away from the polyvinylidene fluoride sleeve 475.

[0034] A gas buried pipeline positioning measurement device and method, a gas buried pipeline positioning measurement method, comprising the following steps: Step 1: Place the measuring instrument body 43 at one end of the pipeline body 2, and place the vehicle body 42 at the other end of the pipeline body 2, drive the vehicle body 42 to move, and start the motor 451 under the setting of the first magnetic ring 458 and the second magnetic ring 4511, and the motor 451 drives the rotating shaft 454 to rotate. Under the setting of the limit bending rod 455, the rotating shaft 454 drives the threaded plate 456 to move during the rotation process, and the threaded plate 456 drives the extrusion block 457 to move. When the extrusion block 457 comes into contact with the card plate sleeve 4510, the card plate sleeve 4510 rotates; Step 2: When the threaded plate 456 moves, it drives the curved rod 461 to move, and the curved rod 461 drives the piston plate 463 to move. Through the arrangement of the circular tube 4612 and the annular shell 464, the sector plate 466 drives the rotating ring 465 to rotate; Step 3: During the rotation of the rotating ring 465, the rotating ring 465 drives the connecting rod 471 to rotate, the connecting rod 471 drives the fixed ring 472 to rotate, the fixed ring 472 drives the sponge ring 473 to rotate, and the fixed ring 472 drives the strip plate 474 to rotate, the strip plate 474 drives the sponge bent plate 476 to rotate, and the strip plate 474 drives the polyvinylidene fluoride sleeve 475 to rotate.

[0035] When in use, during the rotation of the rotating ring 465, the rotating ring 465 drives the connecting rod 471 to rotate, the connecting rod 471 drives the fixed ring 472 to rotate, the fixed ring 472 drives the sponge ring 473 to rotate, and during the rotation of the sponge ring 473, the antiseptic liquid sprayed on the inner wall of the pipeline body 2 is applied, so that the antiseptic liquid can be evenly applied to each position of the inner wall of the pipeline body 2, further enhancing the protective effect of the device on the pipeline body 2, and the fixed ring 472 drives the strip plate 474 to rotate, and the strip plate 474 drives the sponge bent plate 476 to rotate. During the rotation of the sponge bent plate 476, the outer surface of the measuring instrument body 43 is contacted, thereby cleaning the outer surface of the measuring instrument body 43 to prevent the measuring instrument body 43 from being corroded by underground moist water molecules when placed inside the pipe body 2, thereby enhancing the protective effect of the device on the measuring instrument body 43 and making the measurement result of the measuring instrument body 43 more accurate. At the same time, the strip plate 474 drives the polyvinylidene fluoride sleeve 475 to rotate. When passing through the turning point inside the pipe body 2, the outer surface of the measuring instrument body 43 can be protected to prevent the measuring instrument body 43 from being damaged by collision.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gas buried pipeline positioning and measuring device, characterized in that: It comprises a ground body (1), the inner wall of the ground body (1) is sleeved with and in contact with a pipe body (2), the top of the ground body (1) is in contact with a winding roller frame (3), and further comprises: A positioning and measuring mechanism (4), the positioning and measuring mechanism (4) comprising a pull rope (41) slidably connected to the outer wall of the winding roller frame (3), one end of the pull rope (41) being fixedly connected to a vehicle body (42), one end of the pull rope (41) away from the vehicle body (42) being fixedly connected to a measuring instrument body (43), and a clamping assembly (45) being provided on the inner wall of the vehicle body (42).

2. A gas buried pipeline positioning and measuring device according to claim 1, characterized in that: The clamping assembly (45) comprises a motor (451) fixedly connected to one side of the inner wall of the vehicle body (42); the output end of the motor (451) is fixedly connected to a rotating shaft (454); one end of the rotating shaft (454) passes through the vehicle body (42) and extends to the outside of the vehicle body (42); the outer wall of one end of the rotating shaft (454) away from the motor (451) is threaded; and a threaded plate (456) is sleeved on the outer wall of the middle end of the rotating shaft (454) and threadedly connected.

3. A gas buried pipeline positioning and measuring device according to claim 2, characterized in that: The two ends of one side of the threaded plate (456) respectively penetrate and are slidably connected to a limit bending rod (455); one end of the limit bending rod (455) is fixedly connected to a side of an outer wall of the vehicle body (42); the two ends of one side of the threaded plate (456) are respectively fixedly connected to an extrusion block (457); the end of the limit bending rod (455) away from the vehicle body (42) is fixedly connected to a first magnetic ring (458); and one side of the inner wall of the first magnetic ring (458) is respectively fixedly connected to a clamping rod (459).

4. A buried gas pipeline positioning and measuring device according to claim 3, characterized in that: A clamping plate sleeve (4510) is sleeved on the outer wall of the middle end of the clamping rod (459) and is rotatably connected thereto; connecting springs (452) are fixedly connected to both sides of the clamping plate sleeve (4510); one end of the connecting spring (452) is fixedly connected to the inner wall of the first magnetic ring (458); a side of the first magnetic ring (458) away from the limiting bending rod (455) contacts the second magnetic ring (4511); and a clamping groove (4512) is provided on the inner wall of the second magnetic ring (4511).

5. A buried gas pipeline positioning and measuring device according to claim 4, characterized in that: The outer wall of the threaded plate (456) is provided with a care component (46), and the care component (46) comprises a bent rod (461) fixedly connected to the top and bottom of the threaded plate (456), and one end of the bent rod (461) away from the threaded plate (456) is fixedly connected to a piston plate (463), and the outer wall of the piston plate (463) is sleeved and slidably connected to a liquid storage tank (462), and one side of the outer wall of the liquid storage tank (462) is fixedly connected to one side of the outer wall of the vehicle body (42).

6. A buried gas pipeline positioning and measuring device according to claim 5, characterized in that: One end of the outer wall of the liquid storage tank (462) is connected to a circular tube (4612), and one end of the circular tube (4612) away from the liquid storage tank (462) is connected to an annular shell (464). A plurality of connection blocks (4611) are fixedly connected to the four sides of the annular shell (464) near the circular tube (4612), and one end of the connection block (4611) away from the annular shell (464) is fixedly connected to the outer wall of the vehicle body (42). A rotating ring (465) is sleeved on the inner wall of the annular shell (464) and is rotatably connected thereto.

7. A buried gas pipeline positioning and measuring device according to claim 6, characterized in that: A plurality of fan-shaped plates (466) are fixedly connected to the outer wall of the rotating ring (465) on all sides, the outer wall of the fan-shaped plates (466) contacts the inner wall of the annular shell (464), a plurality of drainage holes (467) are provided at the bottom end of the outer wall of the annular shell (464), a drainage shell (469) is sleeved on and fixedly connected to the outer wall of the annular shell (464), a plurality of drainage pipes (4610) are connected to the top end of the outer wall of the drainage shell (469), and a circular hole (468) is provided on one side of the annular shell (464).

8. A buried gas pipeline positioning and measuring device according to claim 7, characterized in that: An auxiliary component (47) is provided on one side of the rotating ring (465), and the auxiliary component (47) comprises a plurality of connecting rods (471) fixedly connected to the periphery of one side of the rotating ring (465), the outer wall of one end of the connecting rod (471) being slidably connected to the inner wall of the annular hole (468), and the end of the connecting rod (471) away from the rotating ring (465) being fixedly connected to a fixing ring (472), and the outer wall of the fixing ring (472) being sleeved with and fixedly connected to a sponge ring (473).

9. A buried gas pipeline positioning and measuring device according to claim 8, characterized in that: A plurality of strip plates (474) are fixedly connected to the top of the inner wall of the fixing ring (472) close to the connecting rod (471); a polyvinylidene fluoride sleeve (475) is fixedly connected to the top of one end of the strip plate (474) away from the fixing ring (472); and a sponge bent plate (476) is fixedly connected to the bottom of one end of the strip plate (474) away from the polyvinylidene fluoride sleeve (475).

10. According to any one of claims 1 to 9, a method for positioning and measuring a buried gas pipeline comprises the following steps, characterized in that: Step 1: placing the measuring instrument body (43) at one end of the pipeline body (2), and placing the vehicle body (42) at the other end of the pipeline body (2), driving the vehicle body (42) to move, and under the setting of the first magnetic ring (458) and the second magnetic ring (4511), starting the motor (451), and the motor (451) drives the rotating shaft (454) to rotate. Under the setting of the limit bending rod (455), the rotating shaft (454) drives the threaded plate (456) to move during the rotation process, and the threaded plate (456) drives the extrusion block (457) to move. When the extrusion block (457) comes into contact with the card plate sleeve (4510), the card plate sleeve (4510) rotates; Step 2: During the movement of the threaded plate (456), the bent rod (461) is driven to move, and the bent rod (461) drives the piston plate (463) to move. Through the arrangement of the circular tube (4612) and the annular shell (464), the sector plate (466) drives the rotating ring (465) to rotate; Step 3: During the rotation of the rotating ring (465), the rotating ring (465) drives the connecting rod (471) to rotate, the connecting rod (471) drives the fixed ring (472) to rotate, the fixed ring (472) drives the sponge ring (473) to rotate, and the fixed ring (472) drives the strip plate (474) to rotate, the strip plate (474) drives the sponge bent plate (476) to rotate, and at the same time, the strip plate (474) drives the polyvinylidene fluoride sleeve (475) to rotate.

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