Device for measuring thickness of pipe by using laser

Abstract

The invention belongs to the technical field of laser measurement, and particularly relates to a device for measuring the thickness of a pipe by using laser, which comprises a detection frame, the right side wall of the detection frame is fixedly connected with a control cabinet, the side wall of the detection frame is fixedly connected with a plurality of hydraulic cylinders, and the moving ends of the hydraulic cylinders penetrate through the detection frame and are fixedly connected with an arc-shaped supporting plate. And a to-be-tested pipe is placed in the plurality of arc-shaped supporting plates. When the thickness of a long pipe is detected, the thickness of each part of the pipe can be fully detected, the detection range of the laser measurement device is enlarged, the overall bearing strength of the pipe is ensured, the use safety of the pipe is improved, the service life of the pipe is prolonged, and when the thickness of the deep part of the pipe is detected, the detection precision is improved. And dust attached to the inner wall of the pipe can be automatically cleaned in the detection process, so that the problem that the detection accuracy of the laser measurement device is influenced by the dust is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of laser measurement, and in particular relates to a device for measuring the thickness of a pipe by utilizing laser. Background Art

[0002] After the pipe is produced, in order to ensure the safety, reliability and functionality of the pipe in industrial applications, the thickness of the pipe needs to be tested. For example, a device for measuring the thickness of the pipe using laser is proposed in patent publication number CN117516394B.

[0003] When detecting pipe wall thickness, existing laser thickness measuring devices are limited by the equipment's detection range and can only measure the thickness of the area near the pipe end. When the pipe is long, it is impossible to fully detect the entire pipe section, resulting in the wall thickness weaknesses in the middle section or specific areas of the pipe being easily missed. These undetected weak areas will significantly reduce the overall bearing strength of the pipe, which may cause structural failure during subsequent use, seriously affecting the safety of use and service life of the pipe.

[0004] Therefore, a device for measuring the thickness of pipes using laser is proposed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a device for measuring the thickness of a pipe using laser in order to solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions: a device for measuring the thickness of a pipe using a laser, comprising a detection frame, the right side wall of which is fixedly connected to a control cabinet, a plurality of hydraulic cylinders fixedly connected to the side wall of the detection frame, the movable ends of the hydraulic cylinders passing through the detection frame and fixedly connected to arc-shaped support plates, the pipe to be measured being placed within the plurality of arc-shaped support plates, and further comprising:

[0007] A vertical plate is fixedly connected to the upper side wall of the detection frame, an upper electric push rod and a lower electric push rod are fixedly connected to the right side wall of the vertical plate, a sliding opening is opened on the side wall of the vertical plate, a moving end of the upper electric push rod is fixedly connected to a first slide rod through a bracket, and an external detection component is slidably provided on the outside of the first slide rod;

[0008] A second slide bar is fixedly connected to the movable end of the lower electric push rod through a bracket, and the second slide bar is provided with an internal detection component when sliding outward;

[0009] A plurality of passing components are arranged on the upper side wall of the detection frame and are used to control the lifting and lowering of a single arc-shaped support plate.

[0010] Preferably, the external detection component includes an outer detection ring, the side wall of the outer detection ring is provided with a sliding hole that matches the first sliding rod, the side wall of the outer detection ring is fixedly connected to a plurality of first electric push rods, the movable ends of the plurality of first electric push rods are fixedly connected to a first electric drive wheel through a pressure sensor, the first electric drive wheel is located on the inner side of the detection ring, the inner wall of the outer detection ring is connected to a first laser rangefinder through an annular slide rail mechanism, and the first laser rangefinder is electrically connected to the control cabinet.

[0011] Preferably, the inner detection component includes an inner detection ring, the inner wall of the inner detection ring is fixedly connected to a plurality of fixed rods, the plurality of fixed rods are fixedly connected to the same guide sleeve at one opposite end, the second slide rod passes through the guide sleeve, the side wall of the inner detection ring is fixedly connected to a plurality of second electric push rods, the movable end of the second electric push rod passes through the inner detection ring and is fixedly connected to a second electric drive wheel through a pressure sensor, the second electric drive wheel is located on the outside of the inner detection ring, the outer wall of the inner detection ring is connected to a moving seat through an annular slide rail mechanism, the side wall of the moving seat is fixedly connected to a small electric push rod, the movable end of the small electric push rod is fixedly connected to a placement seat, the side wall of the placement seat is fixedly connected to a second laser rangefinder, and the second laser rangefinder is electrically connected to the control cabinet.

[0012] Preferably, the rear side wall of the placement seat is fixedly connected to a cleaning rack, the upper side wall of the cleaning rack is fixedly connected to bristles, the upper side wall of the cleaning rack is fixedly connected to multiple balls through a bracket, the inner wall of the inner detection ring is fixedly connected to a cleaning pipe, the side wall of the cleaning pipe is provided with multiple cleaning holes, the inner wall of the inner detection ring is fixedly connected to an air pump, and the air outlet end of the air pump is connected to the cleaning pipe.

[0013] Preferably, the passing component includes a passing box fixedly connected to the upper side wall of the detection frame, the inner wall of the passing box is connected to a rotating shaft through a torsion spring, a rotating plate is fixedly sleeved outside the rotating shaft, the upper side wall of the passing box is provided with a rotating opening that matches the rotating plate, the upper end of the rotating plate extends out of the passing box through the rotating opening, the lower side wall of the rotating plate is fixedly connected to a conductive plate, the conductive plate is electrically connected to an external power supply, the lower inner wall of the passing box is fixedly connected to an arc seat, the upper side wall of the arc seat is inlaid with an arc plate, and the arc plate is electrically connected to the control cabinet through a current sensor.

[0014] Preferably, the inner wall of the guide sleeve is fixedly connected to a conductive seat, and the conductive seat is electrically connected to an external power supply through a conductive slide mechanism. The rod wall of the second slide rod is inlaid with multiple conductive rings, and the conductive rings are electrically connected to the control cabinet. The surface of the first slide rod is embedded with multiple lamp beads, and the conductive rings are electrically connected to the corresponding lamp beads through the control cabinet.

[0015] Preferably, the left end of the first sliding rod is fixedly connected to a positioning arc plate through a bracket, the inner wall of the positioning arc plate is inlaid with an extrusion switch, and the extrusion switch is electrically connected to the control cabinet.

[0016] Preferably, the left end of the second sliding rod is fixedly connected to a positioning plate, the upper and lower side walls of the positioning plate are fixedly connected to a positioning electric push rod, the movable end of the positioning electric push rod is fixedly connected to a storage cover, the inner wall of the storage cover is fixedly connected to a trigger switch through a spring, and the trigger switch is electrically connected to the control cabinet.

[0017] Compared with the existing technology, the advantages of a device using laser to measure the thickness of pipes are:

[0018] 1. Through the provision of external and internal detection components, when testing the thickness of a long pipe, the thickness of each part of the pipe can be fully detected, thereby increasing the detection range of the laser measuring device, ensuring the overall bearing strength of the pipe, and improving the safety and service life of the pipe.

[0019] 2. Through the provided cleaning rack, brush, ball, cleaning pipe, cleaning hole and air pump, when testing the thickness of the deep part of the pipe, the dust attached to the inner wall of the pipe can be automatically cleaned during the testing process, thereby avoiding the problem of dust affecting the detection accuracy of the laser measuring device.

[0020] 3. Through the set passing component, during the process of detecting the thickness of the pipe, when the external detection component moves to one side of a certain arc support plate, the arc support plate and the pipe can be automatically separated, thereby avoiding the problem of the arc support plate affecting the movement of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a device for measuring pipe thickness using laser provided by the present invention;

[0022] Figure 2 This is a schematic structural diagram of the external detection components of a device for measuring pipe thickness using laser provided by the present invention;

[0023] Figure 3 This is a schematic structural diagram of an internal detection component in a device for measuring pipe thickness using laser provided by the present invention;

[0024] Figure 4 This is a schematic diagram of the positional relationship between a placement seat and a cleaning frame in a device for measuring pipe thickness using laser provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the shape and structure of a dust cleaning pipe in a device for measuring pipe thickness using laser provided by the present invention;

[0026] Figure 6 This is a schematic structural diagram of a passing component in a device for measuring the thickness of a pipe using laser provided by the present invention;

[0027] Figure 7 This is a schematic diagram of the surface structure of a positioning plate in a device for measuring the thickness of a pipe using laser provided by the present invention;

[0028] Figure 8 This is a schematic diagram of the positional relationship between a first sliding rod and a plurality of lamp beads in a device for measuring the thickness of a pipe using laser provided by the present invention.

[0029] In the figure: 1 detection frame, 2 control cabinet, 3 hydraulic cylinder, 4 arc support plate, 5 vertical plate, 6 upper electric push rod, 7 lower electric push rod, 8 first slide rod, 9 second slide rod, 10 outer detection component, 101 outer detection ring, 102 first electric push rod, 11 slide hole, 12 first electric drive wheel, 13 first laser rangefinder, 14 inner detection component, 141 inner detection ring, 142 fixed rod, 15 guide sleeve, 16 second electric push rod, 17 second electric drive wheel, 18 moving Moving seat, 19 small electric push rod, 20 placement seat, 21 second laser rangefinder, 22 cleaning rack, 23 brush, 24 ball, 25 dust cleaning pipe, 26 dust cleaning hole, 27 air pump, 28 through component, 281 through box, 282 rotating shaft, 29 rotating plate, 30 conductive plate, 31 arc seat, 32 arc plate, 33 conductive seat, 34 conductive ring, 35 lamp beads, 36 positioning arc plate, 37 positioning plate, 38 positioning electric push rod, 39 storage cover, 40 trigger switch. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] like Figures 1-8 As shown, a device for measuring the thickness of a pipe using a laser includes a detection frame 1, a control cabinet 2 is fixedly connected to the right side wall of the detection frame 1, and multiple hydraulic cylinders 3 are fixedly connected to the side wall of the detection frame 1. The movable ends of the hydraulic cylinders 3 pass through the detection frame 1 and are fixedly connected to arc-shaped support plates 4. The pipe to be measured is placed in the multiple arc-shaped support plates 4, and further includes:

[0032] The vertical plate 5 is fixedly connected to the upper side wall of the detection frame 1, and the right side wall of the vertical plate 5 is fixedly connected with the upper electric push rod 6 and the lower electric push rod 7. The side wall of the vertical plate 5 is provided with a sliding opening, and the moving end of the upper electric push rod 6 is fixedly connected to the first slide bar 8 through the bracket, and the left end of the first slide bar 8 is fixedly connected to the positioning arc plate 36 through the bracket. The inner wall of the positioning arc plate 36 is inlaid with an extrusion switch, and the extrusion switch is electrically connected to the control cabinet 2, which can support the left end of the first slide bar 8. The first slide bar 8 is provided with an external detection component 10 for sliding outside. The external detection component 10 includes an external detection component 10. Measuring ring 101, the side wall of the outer detection ring 101 is provided with a sliding hole 11 that matches the first slide rod 8, the side wall of the outer detection ring 101 is fixedly connected to a plurality of first electric push rods 102, the moving ends of the plurality of first electric push rods 102 are fixedly connected to a first electric drive wheel 12 through a pressure sensor, the first electric drive wheel 12 is located on the inner side of the detection ring, the inner wall of the outer detection ring 101 is connected to a first laser rangefinder 13 through an annular slide rail mechanism, the first laser rangefinder 13 is electrically connected to the control cabinet 2, and can detect changes in the thickness of the outer surface of the pipe;

[0033] The second slide bar 9 is fixedly connected to the movable end of the lower electric push rod 7 through the bracket. The second slide bar 9 is provided with an inner detection assembly 14 for sliding outside. The inner detection assembly 14 includes an inner detection ring 141. The inner wall of the inner detection ring 141 is fixedly connected to a plurality of fixed rods 142. The plurality of fixed rods 142 are fixedly connected to the same guide sleeve 15 at one opposite end. The second slide bar 9 passes through the guide sleeve 15. The side wall of the inner detection ring 141 is fixedly connected to a plurality of second electric push rods 16. The movable end of the second electric push rod 16 passes through the inner detection ring 141, and A second electric drive wheel 17 is fixedly connected via a pressure sensor. The second electric drive wheel 17 is located outside the inner detection ring 141. The outer wall of the inner detection ring 141 is connected to a movable seat 18 via an annular slide mechanism. A small electric push rod 19 is fixedly connected to the side wall of the movable seat 18. The movable end of the small electric push rod 19 is fixedly connected to a placement seat 20. A second laser rangefinder 21 is fixedly connected to the side wall of the placement seat 20. The second laser rangefinder 21 is electrically connected to the control cabinet 2 and can detect changes in the thickness of the inner surface of the pipe.

[0034] A plurality of through components 28 are provided on the upper side wall of the detection frame 1 for controlling the lifting of a single arc-shaped support plate 4. The through component 28 comprises a through box 281 fixedly connected to the upper side wall of the detection frame 1. The inner wall of the through box 281 is connected to a rotating shaft 282 through a torsion spring. A rotating plate 29 is fixedly sleeved on the outer side of the rotating shaft 282. A rotating port matching the rotating plate 29 is provided on the upper side wall of the through box 281. The upper end of the rotating plate 29 extends out of the through box 281 through the rotating port. The lower side of the rotating plate 29 is fixed to the through box 281. A conductive plate 30 is fixedly connected to the wall, and the conductive plate 30 is electrically connected to an external power supply. An arc-shaped seat 31 is fixedly connected to the lower inner wall of the box 281. An arc-shaped plate 32 is inlaid on the upper side wall of the arc-shaped seat 31. The arc-shaped plate 32 is electrically connected to the control cabinet 2 through a current sensor. In the process of detecting the thickness of the pipe, when the external detection component 10 moves to one side of a certain arc-shaped support plate 4, the arc-shaped support plate 4 and the pipe can be automatically separated, thereby avoiding the problem of the arc-shaped support plate 4 affecting the movement of the pipe.

[0035] The rear side wall of the placement seat 20 is fixedly connected to a cleaning rack 22, the upper side wall of the cleaning rack 22 is fixedly connected to bristles 23, the upper side wall of the cleaning rack 22 is fixedly connected to multiple balls 24 through a bracket, the inner wall of the inner detection ring 141 is fixedly connected to a cleaning pipe 25, the side wall of the cleaning pipe 25 is provided with multiple cleaning holes 26, the inner wall of the inner detection ring 141 is fixedly connected to an air pump 27, the air outlet end of the air pump 27 is connected to the cleaning pipe 25, and the dust attached to the inner wall of the pipe can be cleaned during the detection process.

[0036] A conductive seat 33 is fixedly connected to the inner wall of the guide sleeve 15, and the conductive seat 33 is electrically connected to an external power supply through a conductive slide mechanism. The rod wall of the second slide bar 9 is inlaid with multiple conductive rings 34, and the conductive rings 34 are electrically connected to the control cabinet 2. A plurality of lamp beads 35 are embedded in the surface of the first slide bar 8, and the conductive rings 34 are electrically connected to the corresponding lamp beads 35 through the control cabinet 2, which can display areas with problematic inner diameters of the pipe.

[0037] The left end of the second slide bar 9 is fixedly connected to a positioning plate 37, and the upper and lower side walls of the positioning plate 37 are fixedly connected to a positioning electric push rod 38. The movable end of the positioning electric push rod 38 is fixedly connected to a storage cover 39, and the inner wall of the storage cover 39 is fixedly connected to a trigger switch 40 through a spring. The trigger switch 40 is electrically connected to the control cabinet 2, which can enable the second slide bar 9 to be located at the center of the pipe.

[0038] The operating principle of the present invention is now explained as follows: the pipe to be tested is placed parallel to the surface of multiple curved plates 32, and in the process of placing the pipe, the second slide bar 9 will be inserted into the pipe, then the operator places the outer detection ring 101 and the inner detection ring 141 of appropriate sizes (the outer detection ring 101 and the inner detection ring 141 can select appropriate specifications according to the size of the pipe to be tested) on the outside and the inside of the pipe respectively, then the operator transmits a starting electrical signal to the internal control cabinet 2 circuit through the touch screen on the surface of the control cabinet 2, after receiving the electrical signal, the control cabinet 2 first controls the upper electric push rod 6 to work, and the upper electric push rod 6 will drive the first slide bar 8, the outer detection ring 101 and the positioning arc plate 36 to move downward together through the bracket, after the positioning arc plate 36 contacts the pipe during the downward movement, the squeezing switch on the inner wall of the positioning arc plate 36 will be pressed by the pipe, and the squeezing switch will transmit an electrical signal to the control cabinet 2, and the control cabinet 2 After receiving the electrical signal, the upper electric push rod 6 will be controlled to stop working. At this time, the center of the outer detection ring 101 coincides with the central axis of the pipe. Then, the control cabinet 2 controls the two positioning electric push rods 38 to work. The positioning electric push rod 38 will drive the storage cover 39 and the trigger switch 40 to move toward the inner wall of the pipe. When the positioning plate 37 and the second slide bar 9 are placed at a position slightly below the center of the pipe, the trigger switch 40 located below will first contact the lower inner wall of the pipe. The trigger switch 40 will control the lower electric push rod 7 to move forward through the control cabinet 2. The lower electric push rod 7 will drive the second slide bar 9, the inner detection ring 141, the positioning plate 37 and the two positioning electric push rods 38 to move upward together through the bracket until the upper trigger switch 40 contacts the upper inner wall of the pipe. When the control cabinet 2 detects that the upper switch contacts the upper inner wall of the pipe, the control cabinet 2 will control the lower electric push rod 7 to stop working. At this time, the center of the inner detection ring 141 coincides with the central axis of the pipe.

[0039] Next, the control cabinet 2 controls the multiple first electric push rods 102 and the multiple second electric push rods 16 to work simultaneously. The first electric push rod 102 drives the first electric drive wheel 12 to contact the outer wall of the pipe through the pressure sensor, and the control cabinet 2 detects through the pressure sensor that the extrusion pressure between the first electric drive wheel 12 and the pipe reaches the set threshold value (50N), the control cabinet 2 will control the first electric push rod 102 to stop working. Similarly, when the extrusion pressure between the second electric drive wheel 17 and the inner wall of the pipe reaches the set threshold value, the control cabinet 2 will also control the second electric push rod 16 to stop working. When the first electric push rod 102 and the second electric push rod 16 stop working, the control cabinet 2 will control the small electric push rod 19 to work, and the small electric push rod 19 will stop working. The pressure sensor drives the placement seat 20 and the cleaning rack 22 to move toward the inner wall of the pipe, so that the bristles 23 contact the inner wall of the pipe, and after the ball 24 on the surface of the cleaning rack 22 contacts the pipe, the pressure sensor will detect the pressure change. When the control cabinet 2 detects through the pressure sensor that the extrusion force between the ball 24 and the pipe reaches the set threshold (10N), the control cabinet 2 will control the small electric push rod 19 to stop working, and then the control cabinet 2 controls the multiple first electric drive wheels 12 and the multiple second electric drive wheels 17 to work together for a set time (according to the measured length of the pipe, the working time of the first electric drive wheel 12 and the second electric drive wheel 17 is adjusted to prevent the outer detection component 10 and the inner detection component 14 from separating from the left end of the pipe) The first electric drive wheel 12 is used to drive the outer detection ring 101 to move on the outside of the pipe, and the second electric drive wheel 17 is used to drive the inner detection ring 141 to move inside the pipe. In the process of the movement of the outer detection ring 101 and the inner detection ring 141, the controller will also control the two annular slide rail mechanisms to work (the annular slide rail mechanism includes an annular rail, a slide seat, a drive motor, a drive gear and a gear ring. The drive motor drives the drive gear to rotate, and the meshing action between the drive gear and the gear ring will drive the slide seat to move. The two slide seats will drive the first laser rangefinder 13 and the moving seat 18 to move respectively), thereby controlling the rotation of the first laser rangefinder 13, the moving seat 18 and the second laser rangefinder 21, and using the first laser rangefinder 13 to measure the outer surface of the pipe. Perform detection and use the second laser rangefinder 21 to detect the inner surface of the pipe. When the first laser rangefinder 13 detects that there is a depression on the outer surface of the pipe, resulting in a change in the thickness of the pipe, the first laser rangefinder 13 will display the detection result on the touch screen of the control cabinet 2. When the second laser rangefinder 21 detects that there is a depression on the inner surface of the pipe, resulting in a change in the thickness of the pipe, the detection result will also be displayed on the touch screen. At the same time, the control cabinet 2 will also control the conductive seat 33 to be electrically connected to the external power supply for 0.1 seconds. The external current will be transmitted to the control cabinet 2 through the conductive seat 33 and a conductive ring 34. The control cabinet 2 will control the lamp bead 35 at the corresponding position on the surface of the first slide bar 8 to emit light, which is convenient for the operator to subsequently determine the position of the depression on the inner wall of the pipe.

[0040] When the outer detection ring 101 is moving to the left, when the outer detection ring 101 is close to a certain arc-shaped support plate 4, the outer detection ring 101 will squeeze the upper end of the rotating plate 29, and the lower end of the rotating plate 29 will drive the conductive plate 30 to rotate counterclockwise. The conductive plate 30 will contact the arc-shaped plate 32 during the rotation. The conductive plate 30 is electrically connected to the external power supply, and the arc-shaped plate 32 is electrically connected to the control cabinet 2 through the current sensor. When the two are in contact, an electrical signal will be transmitted to the control cabinet 2. After receiving the electrical signal, the control cabinet 2 will control the corresponding hydraulic cylinder 3 to work reciprocatingly once (first retract, then extend), so that the hydraulic cylinder 3 drives the arc-shaped support plate 4 and the pipe to separate, thereby facilitating the movement of the outer detection ring 101.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for measuring the thickness of a pipe using a laser, comprising a detection frame (1), wherein the right side wall of the detection frame (1) is fixedly connected to a control cabinet (2), and the side wall of the detection frame (1) is fixedly connected to a plurality of hydraulic cylinders (3), wherein the movable end of the hydraulic cylinder (3) passes through the detection frame (1) and is fixedly connected to an arc-shaped support plate (4), and the pipe to be measured is placed in the plurality of arc-shaped support plates (4), characterized in that: Also includes: A vertical plate (5) is fixedly connected to the upper side wall of the detection frame (1); an upper electric push rod (6) and a lower electric push rod (7) are fixedly connected to the right side wall of the vertical plate (5); a sliding opening is opened on the side wall of the vertical plate (5); a movable end of the upper electric push rod (6) is fixedly connected to a first slide rod (8) through a bracket; an outer detection component (10) is provided on the outer side of the first slide rod (8); A second slide bar (9) is fixedly connected to the movable end of the lower electric push rod (7) through a bracket, and the second slide bar (9) is provided with an internal detection component (14) when sliding outward; A plurality of passing components (28) are arranged on the upper side wall of the detection frame (1) and are used to control the lifting and lowering of a single arc-shaped support plate (4).

2. The device for measuring pipe thickness using laser according to claim 1, characterized in that: The outer detection component (10) comprises an outer detection ring (101), a side wall of the outer detection ring (101) is provided with a sliding hole (11) that matches the first sliding rod (8), the side wall of the outer detection ring (101) is fixedly connected to a plurality of first electric push rods (102), the movable ends of the plurality of first electric push rods (102) are fixedly connected to a first electric drive wheel (12) through a pressure sensor, the first electric drive wheel (12) is located on the inner side of the detection ring, the inner wall of the outer detection ring (101) is connected to a first laser rangefinder (13) through an annular slide rail mechanism, and the first laser rangefinder (13) is electrically connected to the control cabinet (2).

3. The device for measuring pipe thickness using laser according to claim 1, characterized in that: The inner detection assembly (14) includes an inner detection ring (141), the inner wall of the inner detection ring (141) is fixedly connected to a plurality of fixed rods (142), the opposite ends of the plurality of fixed rods (142) are fixedly connected to the same guide sleeve (15), the second slide bar (9) passes through the guide sleeve (15), the side wall of the inner detection ring (141) is fixedly connected to a plurality of second electric push rods (16), the movable end of the second electric push rod (16) passes through the inner detection ring (141) and is fixedly connected to the second electric push rod (16) through the pressure sensor. The invention relates to a motor-driven driving wheel (17), wherein the second motor-driven driving wheel (17) is located outside the inner detection ring (141), the outer wall of the inner detection ring (141) is connected to a moving seat (18) through an annular slide rail mechanism, the side wall of the moving seat (18) is fixedly connected to a small electric push rod (19), the moving end of the small electric push rod (19) is fixedly connected to a placement seat (20), the side wall of the placement seat (20) is fixedly connected to a second laser rangefinder (21), and the second laser rangefinder (21) is electrically connected to the control cabinet (2).

4. The device for measuring pipe thickness using laser according to claim 3, characterized in that: The rear side wall of the placement seat (20) is fixedly connected to a cleaning frame (22), the upper side wall of the cleaning frame (22) is fixedly connected to bristles (23), the upper side wall of the cleaning frame (22) is fixedly connected to a plurality of balls (24) via a bracket, the inner wall of the inner detection ring (141) is fixedly connected to a dust cleaning pipe (25), the side wall of the dust cleaning pipe (25) is provided with a plurality of dust cleaning holes (26), the inner wall of the inner detection ring (141) is fixedly connected to an air pump (27), and the air outlet end of the air pump (27) is connected to the dust cleaning pipe (25).

5. The device for measuring pipe thickness using laser according to claim 1, characterized in that: The through assembly (28) comprises a through box (281) fixedly connected to the upper side wall of the detection frame (1); the inner wall of the through box (281) is connected to a rotating shaft (282) through a torsion spring; a rotating plate (29) is fixedly sleeved outside the rotating shaft (282); the upper side wall of the through box (281) is provided with a rotating opening that matches the rotating plate (29); the upper end of the rotating plate (29) extends out of the through box (281) through the rotating opening; the lower side wall of the rotating plate (29) is fixedly connected to a conductive plate (30); the conductive plate (30) is electrically connected to an external power supply; the lower inner wall of the through box (281) is fixedly connected to an arc seat (31); the upper side wall of the arc seat (31) is inlaid with an arc plate (32); the arc plate (32) is electrically connected to the control cabinet (2) through a current sensor.

6. The device for measuring pipe thickness using laser according to claim 3, characterized in that: The inner wall of the guide sleeve (15) is fixedly connected to a conductive seat (33), and the conductive seat (33) is electrically connected to an external power supply through a conductive slide mechanism. The rod wall of the second slide bar (9) is inlaid with a plurality of conductive rings (34), and the conductive rings (34) are electrically connected to the control cabinet (2). The surface of the first slide bar (8) is embedded with a plurality of lamp beads (35), and the conductive rings (34) are electrically connected to the corresponding lamp beads (35) through the control cabinet (2).

7. The device for measuring pipe thickness using laser according to claim 1, characterized in that: The left end of the first slide bar (8) is fixedly connected to a positioning arc plate (36) via a bracket, an inner wall of the positioning arc plate (36) is inlaid with an extrusion switch, and the extrusion switch is electrically connected to the control cabinet (2).

8. The device for measuring pipe thickness using laser according to claim 1, characterized in that: The left end of the second slide bar (9) is fixedly connected to a positioning plate (37), the upper and lower side walls of the positioning plate (37) are fixedly connected to positioning electric push rods (38), the movable end of the positioning electric push rod (38) is fixedly connected to a storage cover (39), the inner wall of the storage cover (39) is fixedly connected to a trigger switch (40) through a spring, and the trigger switch (40) is electrically connected to the control cabinet (2).

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