Ultrasonic thickness measuring device for gas pipeline

Abstract

The utility model provides a gas pipeline ultrasonic thickness measuring device, and relates to the technical field of gas pipeline detection, the gas pipeline ultrasonic thickness measuring device comprises a mounting plate, a mounting column, a measuring assembly, a lifting assembly, a clamping assembly and a limiting assembly, supporting legs are fixedly arranged at the lower end of the mounting plate, and universal wheels with locking assemblies are fixedly arranged at the lower ends of the supporting legs; a through hole is formed in the mounting plate, and the mounting column penetrates through the through hole; by arranging the universal wheels, a worker can conveniently move the device, and the use convenience is improved; by arranging the measuring assembly, the measuring accuracy of the ultrasonic probe is high, and measuring errors are effectively reduced; by arranging the clamping assembly, the gas pipeline is clamped and fixed, so that the ultrasonic probe and the gas pipeline do not move relatively during measurement, and the measurement accuracy is ensured; and by arranging the limiting assembly, the mounting column is limited and fixed, so that when the device moves, the mounting column and the mounting plate are firmly connected, and the use stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of gas pipeline detection, and in particular to a gas pipeline ultrasonic thickness measuring device. Background Art

[0002] A gas pipeline is a special pipeline for transporting combustible gas. It is a metal gas pipe hose that replaces the traditional snap-on rubber hose. It can solve the defects of rubber hoses, such as easy falling off, easy aging, easy insect bites, and short service life. When producing gas pipelines, it is necessary to conduct sampling inspections on the quality of the pipelines. The inspection content includes the measurement of the pipe wall thickness to prevent safety accidents caused by unqualified gas pipelines during use.

[0003] For example, Chinese patent CN202220844753.0 discloses a thickness measuring device for pressure pipeline detection, and the disclosed technical solution includes a base, two groups of support frames are fixedly installed on the right side of the upper surface of the base, the support frames are movably connected to the pressure pipeline, a first electric telescopic rod is fixedly installed on the left end of the upper surface of the base, the telescopic end of the first electric telescopic rod is fixedly connected to the middle part of the left side of the fixed platform, a second electric telescopic rod is fixedly installed on the upper surface of the fixed platform, and the telescopic end of the second electric telescopic rod is fixedly connected to the middle part of the bottom side of the support plate; the utility model can detect the thickness of the pressure pipeline through the combination of the second positioning rod, the support plate, the third electric telescopic rod, the first positioning rod, the positioning block and the second scale line, and can adjust the depth of the second positioning rod entering the pressure pipeline through the combination of the first electric telescopic rod, the fixed platform and the first scale line, so as to further detect the thickness of the pressure pipeline at different positions, and has high use accuracy.

[0004] This prior art has certain drawbacks during use. The hose-type gas pipeline has a certain flexibility. The first positioning rod and the second positioning rod of the device are straight rods. When they are extended into the gas pipeline with a certain flexibility, they cannot fit the pipe wall well, which easily produces certain measurement errors and affects the accuracy of the detection. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a gas pipeline ultrasonic thickness measuring device, which can solve the technical problem that the existing gas pipeline thickness measuring device is prone to certain measurement errors, affecting the accuracy of detection.

[0006] The embodiment of the present application provides an ultrasonic thickness measuring device for a gas pipeline, comprising a mounting plate, a mounting column, a measuring assembly, a lifting assembly, a clamping assembly and a limiting assembly, wherein a support leg is fixedly provided at the lower end of the mounting plate, a universal wheel with a locking assembly is fixedly provided at the lower end of the support leg, a through hole is provided on the mounting plate, the mounting column passes through the through hole, the lifting assembly is used to drive the mounting column to move up and down, the clamping assembly is used to clamp and fix the gas pipeline, and the limiting assembly is used to limit and fix the mounting column;

[0007] The measuring component includes an ultrasonic probe, a controller and a display. The ultrasonic probe is fixedly arranged at the lower end of the mounting column. The controller and the display are both located on the mounting plate. The ultrasonic probe and the display are both electrically connected to the controller.

[0008] Among them, the lifting assembly includes a first screw rod, a guide slide rod, a first screw sleeve and a guide slide sleeve. A mounting frame is fixedly arranged on the upper end of the mounting plate. The first screw rod is rotatably arranged between the mounting frame and the mounting plate through a bearing, and one end of the first screw rod extends out of the upper end of the mounting frame. The guide slide rod is fixedly arranged between the mounting frame and the mounting plate. The first screw sleeve is threadedly sleeved on the first screw rod, and the guide slide sleeve is slidably sleeved on the guide slide rod. The first screw sleeve and the guide slide sleeve are both fixedly connected to the mounting column.

[0009] Wherein, the clamping assembly includes a mounting block, a third screw, a forward screw sleeve, a reverse screw sleeve, a first clamping plate and a second clamping plate, the mounting block is fixedly arranged at the lower end of the mounting column, the ultrasonic probe is fixedly arranged at the lower end of the mounting block, the mounting block is provided with a first limiting sliding groove, the third screw is rotatably arranged in the first limiting sliding groove through a bearing, and one end of the third screw extends out of the mounting block, the forward screw sleeve and the reverse screw sleeve are both threadedly sleeved on the third screw, and the forward screw sleeve and the reverse screw sleeve are both slidably connected to the first limiting sliding groove, the movement direction of the forward screw sleeve is opposite to the movement direction of the reverse screw sleeve, the first clamping plate and the second clamping plate are both located below the mounting block, the first clamping plate is fixedly connected to the forward screw sleeve, and the second clamping plate is fixedly connected to the reverse screw sleeve.

[0010] In which, the limiting assembly includes a second screw, a second screw sleeve and a limiting block, the mounting plate is provided with a second limiting slide groove, the second screw is rotatably arranged in the second limiting slide groove through a bearing, and one end of the second screw extends out of the mounting plate, the second screw sleeve is threadedly sleeved on the third screw, and the second screw sleeve is slidably connected to the second limiting slide groove, the limiting block is located in the second limiting slide groove, and the limiting block is fixedly connected to the second screw sleeve, the mounting column is provided with a limiting groove, the limiting block can pass through the second limiting slide groove, and the limiting block can be movably installed in the limiting groove.

[0011] Wherein, a first handle is fixedly provided at one end of the first screw rod, a second handle is fixedly provided at one end of the second screw rod, and a third handle is fixedly provided at one end of the third screw rod.

[0012] Wherein, the first clamping plate and the second clamping plate are both arc-shaped.

[0013] Wherein, one end of the first clamping plate close to the second clamping plate and one end of the second clamping plate close to the first clamping plate are both provided with rubber pads.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a gas pipeline ultrasonic thickness measuring device. When in use, the mounting plate is moved to the upper part of the gas pipeline to be measured, the mounting column is driven to descend to a suitable height by the lifting component, the gas pipeline is clamped and fixed by the clamping component, and then the ultrasonic probe is used to emit ultrasonic waves. When the ultrasonic waves reach the material boundary through the gas pipeline, the ultrasonic waves are reflected back to the ultrasonic probe, and the ultrasonic probe transmits the signal to the controller. The controller determines the thickness of the gas pipeline by accurately measuring the propagation time of the ultrasonic waves in the material, and displays the measurement results to the staff through the display. After the measurement is completed, the mounting column is reset, and the mounting column is fixed by the limiting component; by arranging the universal wheel, it is convenient for the staff to move the device, and the convenience of use is improved; by arranging the measuring component, the measurement accuracy of the ultrasonic probe is high, and the measurement error is effectively reduced; by arranging the clamping component, the gas pipeline is clamped and fixed, so that there is no relative movement between the ultrasonic probe and the gas pipeline during measurement, so as to ensure the measurement accuracy; by arranging the limiting component, the mounting column is fixed by limiting, so that when the device is moved, the mounting column and the mounting plate are firmly connected, and the use stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a front cross-sectional structure in some embodiments of the present application;

[0018] Figure 2 It is a schematic diagram of the front view structure in some embodiments of the present application.

[0019] The reference numerals are:

[0020] 1. Mounting plate; 11. Support legs; 12. Universal wheels; 13. Through holes; 14. Mounting bracket; 15. Second limiting slide groove;

[0021] 2. Mounting column; 21. Limiting groove;

[0022] 3. Measuring component; 31. Ultrasonic probe; 32. Controller; 33. Display;

[0023] 4. Lifting assembly; 41. First screw rod; 42. Guide slide rod; 43. First screw sleeve; 44. Guide slide sleeve; 45. First handle;

[0024] 5. Clamping assembly; 51. Mounting block; 52. Third screw; 53. Forward screw sleeve; 54. Reverse screw sleeve; 55. First clamping plate; 56. Second clamping plate; 57. First limit slide groove; 58. Third handle; 59. Rubber pad;

[0025] 6. Limiting assembly; 61. Second screw rod; 62. Second screw sleeve; 63. Limiting block; 64. Second handle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] like Figure 1 and 2As shown, the embodiment of the present application provides an ultrasonic thickness measuring device for a gas pipeline, comprising a mounting plate 1, a mounting column 2, a measuring assembly 3, a lifting assembly 4, a clamping assembly 5 and a limiting assembly 6. A supporting leg 11 is fixedly provided at the lower end of the mounting plate 1, and a universal wheel 12 with a locking assembly is fixedly provided at the lower end of the supporting leg 11. A through hole 13 is provided on the mounting plate 1, and the mounting column 2 passes through the through hole 13. The lifting assembly 4 is used to drive the mounting column 2 to move up and down, the clamping assembly 5 is used to clamp and fix the gas pipeline, and the limiting assembly 6 is used to limit and fix the mounting column 2;

[0033] The measuring component 3 includes an ultrasonic probe 31 , a controller 32 and a display 33 . The ultrasonic probe 31 is fixedly disposed at the lower end of the mounting column 2 . The controller 32 and the display 33 are both located on the mounting plate 1 . The ultrasonic probe 31 and the display 33 are both electrically connected to the controller 32 .

[0034] When in use, the mounting plate 1 is moved to the top of the gas pipeline to be measured, the mounting column 2 is driven down to a suitable height by the lifting assembly 4, the gas pipeline is clamped and fixed by the clamping assembly 5, and then the ultrasonic wave is emitted by the ultrasonic probe 31. When the ultrasonic wave reaches the material boundary through the gas pipeline, the ultrasonic wave is reflected back to the ultrasonic probe 31, and the ultrasonic probe 31 transmits the signal to the controller 32. The controller 32 determines the thickness of the gas pipeline by accurately measuring the propagation time of the ultrasonic wave in the material, and displays the measurement result to the staff through the display 33. After the measurement is completed, the mounting plate 1 is moved to the top of the gas pipeline to the upper surface of the gas pipeline, and the mounting column 2 is driven down to the lower surface of the gas pipeline. The mounting column 2 is driven down to the upper surface of the gas pipeline, and the mounting column 2 is driven down to the upper ... The mounting column 2 is limited and fixed by the limit component 6; the universal wheel 12 is provided to facilitate the staff to move the device, thereby improving the convenience of use; the measuring component 3 is provided to ensure high measurement accuracy of the ultrasonic probe 31, thereby effectively reducing the measurement error; the clamping component 5 is provided to clamp and fix the gas pipeline, so that no relative movement occurs between the ultrasonic probe 31 and the gas pipeline during measurement, thereby ensuring the measurement accuracy; the limit component 6 is provided to limit and fix the mounting column 2, so that when the device is moved, the mounting column 2 is firmly connected to the mounting plate 1, thereby improving the stability of use.

[0035] like Figure 1 and 2 As shown, in this embodiment, the lifting assembly 4 includes a first screw rod 41, a guide slide rod 42, a first screw sleeve 43 and a guide sleeve 44. The upper end of the mounting plate 1 is fixedly provided with a mounting frame 14. The first screw rod 41 is rotatably provided between the mounting frame 14 and the mounting plate 1 through a bearing, and one end of the first screw rod 41 extends out of the upper end of the mounting frame 14. The guide slide rod 42 is fixedly provided between the mounting frame 14 and the mounting plate 1. The first screw sleeve 43 is threadedly provided on the first screw rod 41. The guide sleeve 44 is slidably provided on the guide slide rod 42. The first screw sleeve 43 and the guide sleeve 44 are both fixedly connected to the mounting column 2.

[0036] When in use, rotating the first screw rod 41 drives the first screw sleeve 43 to rotate, the first screw sleeve 43 drives the mounting column 2 to move up and down, the mounting column 2 drives the mounting block 51 to move up and down, the mounting block 51 drives the ultrasonic probe 31 to move up and down, and the guide sleeve 44 and the guide slide rod 42 cooperate to guide and limit the mounting column 2.

[0037] like Figure 1 and 2 As shown, in this embodiment, the clamping assembly 5 includes a mounting block 51, a third screw 52, ​​a forward screw sleeve 53, a reverse screw sleeve 54, a first clamping plate 55 and a second clamping plate 56. The mounting block 51 is fixedly arranged at the lower end of the mounting column 2, and the ultrasonic probe 31 is fixedly arranged at the lower end of the mounting block 51. A first limiting slide groove 57 is provided on the mounting block 51. The third screw 52 is rotatably arranged in the first limiting slide groove 57 through a bearing, and one end of the third screw 52 extends out of the mounting block 51. Outside the mounting block 51, the forward screw sleeve 53 and the reverse screw sleeve 54 are both threadedly mounted on the third screw rod 52, and the forward screw sleeve 53 and the reverse screw sleeve 54 are both slidably connected to the first limiting slide groove 57, and the movement direction of the forward screw sleeve 53 is opposite to the movement direction of the reverse screw sleeve 54. The first clamping plate 55 and the second clamping plate 56 are both located below the mounting block 51, and the first clamping plate 55 is fixedly connected to the forward screw sleeve 53, and the second clamping plate 56 is fixedly connected to the reverse screw sleeve 54.

[0038] When in use, the third screw rod 52 is rotated to drive the forward screw sleeve 53 and the reverse screw sleeve 54 to move toward or away from each other, thereby driving the first clamping plate 55 and the second clamping plate 56 to move toward or away from each other.

[0039] like Figure 1 and 2 As shown, in this embodiment, the limiting assembly 6 includes a second screw 61, a second screw sleeve 62 and a limiting block 63. A second limiting groove 15 is provided on the mounting plate 1. The second screw 61 is rotatably arranged in the second limiting groove 15 through a bearing, and one end of the second screw 61 extends out of the mounting plate 1. The second screw sleeve 62 is threadedly sleeved on the third screw 52, ​​and the second screw sleeve 62 is slidably connected to the second limiting groove 15. The limiting block 63 is located in the second limiting groove 15, and the limiting block 63 is fixedly connected to the second screw sleeve 62. A limiting groove 21 is provided on the mounting column 2. The limiting block 63 can pass through the second limiting groove 15, and the limiting block 63 can be movably installed in the limiting groove 21.

[0040] During use, when the lifting assembly 4 drives the mounting column 2 to rise to abut against the mounting frame 14, the second screw 61 is rotated to drive the second screw sleeve 62 to move, and the second screw sleeve 62 drives the limit block 63 to move and insert into the limit groove 21, and the mounting frame 14 and the limit block 63 are used in conjunction to limit and fix the mounting column 2.

[0041] like Figure 1 and 2 As shown, in this embodiment, a first handle 45 is fixedly provided at one end of the first screw rod 41, a second handle 64 is fixedly provided at one end of the second screw rod 61, and a third handle 58 is fixedly provided at one end of the third screw rod 52; the first handle 45 facilitates the staff to rotate the first screw rod 41, the second handle 64 facilitates the staff to rotate the second screw rod 61, and the third handle 58 facilitates the staff to rotate the third screw rod 52, thereby improving convenience of use.

[0042] like Figure 1 and 2 As shown, in this embodiment, the first clamping plate 55 and the second clamping plate 56 are both arc-shaped; the arc-shaped first clamping plate 55 and the second clamping plate 56 can better fit and clamp the gas pipeline, thereby improving the stability in use.

[0043] like Figure 1 and 2 As shown, in this embodiment, rubber pads 59 are provided at one end of the first clamping plate 55 close to the second clamping plate 56 and one end of the second clamping plate 56 close to the first clamping plate 55; the rubber pads 59 can reduce the wear caused by the first clamping plate 55 and the second clamping plate 56 clamping the gas pipeline, avoid affecting the quality of the gas pipeline, and also play an anti-slip role to improve the stability of use.

[0044] Working principle: When the gas pipeline ultrasonic thickness measuring device provided by the present application is used, the mounting plate 1 is moved to the top of the gas pipeline to be measured, the first handle 45 is rotated to drive the first screw 41 to rotate, the first screw 41 drives the first screw sleeve 43 to rotate, the first screw sleeve 43 drives the mounting column 2 to drop to a suitable height, and then the third handle 58 is rotated to drive the third screw 52 to rotate, the third screw 52 drives the forward screw sleeve 53 and the reverse screw sleeve 54 to approach each other, thereby driving the first clamping plate 55 and the second clamping plate 56 to approach each other, the first clamping plate 55 and the second clamping plate 56 clamp and fix the gas pipeline, and then the ultrasonic probe 31 is used to emit ultrasonic waves, and the ultrasonic waves pass through the gas When the gas pipeline reaches the material boundary, the ultrasonic wave is reflected back to the ultrasonic probe 31, and the ultrasonic probe 31 transmits the signal to the controller 32. The controller 32 determines the thickness of the gas pipeline by accurately measuring the time for the ultrasonic wave to propagate in the material, and displays the measurement results to the staff through the display 33. After the measurement is completed, the mounting column 2 is reset. When the lifting assembly 4 drives the mounting column 2 to rise to abut against the mounting frame 14, the second handle 64 is turned to drive the second screw 61 to rotate, and the second screw 61 drives the second screw sleeve 62 to move, and the second screw sleeve 62 drives the limit block 63 to move and insert into the limit groove 21. The mounting frame 14 and the limit block 63 are used in conjunction to limit and fix the mounting column 2.

[0045] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas pipeline ultrasonic thickness measuring device, characterized in that: The utility model comprises a mounting plate (1), a mounting column (2), a measuring component (3), a lifting component (4), a clamping component (5) and a limiting component (6); a supporting leg (11) is fixedly provided at the lower end of the mounting plate (1); a universal wheel (12) with a locking component is fixedly provided at the lower end of the supporting leg (11); a through hole (13) is provided on the mounting plate (1); the mounting column (2) passes through the through hole (13); the lifting component (4) is used for driving the mounting column (2) to move up and down; the clamping component (5) is used for clamping and fixing the gas pipeline; and the limiting component (6) is used for limiting and fixing the mounting column (2); The measuring component (3) comprises an ultrasonic probe (31), a controller (32) and a display (33); the ultrasonic probe (31) is fixedly arranged at the lower end of the mounting column (2); the controller (32) and the display (33) are both located on the mounting plate (1); and the ultrasonic probe (31) and the display (33) are both electrically connected to the controller (32).

2. The gas pipeline ultrasonic thickness measuring device according to claim 1 is characterized in that: The lifting assembly (4) comprises a first screw rod (41), a guide slide rod (42), a first screw sleeve (43) and a guide slide sleeve (44); a mounting frame (14) is fixedly arranged on the upper end of the mounting plate (1); the first screw rod (41) is rotatably arranged between the mounting frame (14) and the mounting plate (1) through a bearing, and one end of the first screw rod (41) extends out of the upper end of the mounting frame (14); the guide slide rod (42) is fixedly arranged between the mounting frame (14) and the mounting plate (1); the first screw sleeve (43) is threadedly sleeved on the first screw rod (41); the guide slide sleeve (44) is slidably sleeved on the guide slide rod (42); the first screw sleeve (43) and the guide slide sleeve (44) are both fixedly connected to the mounting column (2).

3. The gas pipeline ultrasonic thickness measuring device according to claim 2 is characterized in that: The clamping assembly (5) comprises a mounting block (51), a third screw rod (52), a forward screw sleeve (53), a reverse screw sleeve (54), a first clamping plate (55) and a second clamping plate (56); the mounting block (51) is fixedly arranged at the lower end of the mounting column (2); the ultrasonic probe (31) is fixedly arranged at the lower end of the mounting block (51); a first limiting sliding groove (57) is provided on the mounting block (51); the third screw rod (52) is rotatably arranged in the first limiting sliding groove (57) through a bearing, and one end of the third screw rod (52) extends out of the mounting block (51); The forward screw sleeve (53) and the reverse screw sleeve (54) are both threadedly sleeved on the third screw rod (52), and the forward screw sleeve (53) and the reverse screw sleeve (54) are both slidably connected to the first limiting sliding groove (57), the movement direction of the forward screw sleeve (53) is opposite to the movement direction of the reverse screw sleeve (54), the first clamping plate (55) and the second clamping plate (56) are both located below the mounting block (51), the first clamping plate (55) is fixedly connected to the forward screw sleeve (53), and the second clamping plate (56) is fixedly connected to the reverse screw sleeve (54).

4. The gas pipeline ultrasonic thickness measuring device according to claim 3 is characterized in that: The limiting assembly (6) comprises a second screw rod (61), a second screw sleeve (62) and a limiting block (63); a second limiting sliding groove (15) is provided on the mounting plate (1); the second screw rod (61) is rotatably arranged in the second limiting sliding groove (15) through a bearing, and one end of the second screw rod (61) extends out of the mounting plate (1); the second screw sleeve (62) is threadedly sleeved on the third screw rod (52), and the second screw sleeve (62) is slidably connected to the second limiting sliding groove (15); the limiting block (63) is located in the second limiting sliding groove (15), and the limiting block (63) is fixedly connected to the second screw sleeve (62); a limiting groove (21) is provided on the mounting column (2), the limiting block (63) can pass through the second limiting sliding groove (15), and the limiting block (63) can be movably installed in the limiting groove (21).

5. The gas pipeline ultrasonic thickness measuring device according to claim 4 is characterized in that: A first handle (45) is fixedly provided at one end of the first screw rod (41), a second handle (64) is fixedly provided at one end of the second screw rod (61), and a third handle (58) is fixedly provided at one end of the third screw rod (52).

6. The gas pipeline ultrasonic thickness measuring device according to claim 3 is characterized in that: The first clamping plate (55) and the second clamping plate (56) are both arc-shaped.

7. The gas pipeline ultrasonic thickness measuring device according to claim 3 is characterized in that: One end of the first clamping plate (55) close to the second clamping plate (56) and one end of the second clamping plate (56) close to the first clamping plate (55) are both provided with rubber pads (59).

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