CN115683473A

CN115683473A - Pressure pipeline detection equipment

Info

Publication number: CN115683473A
Application number: CN202211721469.5A
Authority: CN
Inventors: 王羲; 黄春燕; 张远琴; 周怀忠; 李木林
Original assignee: Sichuan Xinyuexin Scientific Instrument Co ltd
Current assignee: Sichuan Xinyuexin Scientific Instrument Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-02-03
Anticipated expiration: 2042-12-30
Also published as: CN115683473B

Abstract

The application discloses pressure pipeline check out test set relates to pipeline inspection technical field. This application includes pipeline pressure testing pump, and one side of pipeline pressure testing pump is installed and is born the frame, bear vertical slidable mounting on the frame and have the platform of placing that is used for placing pipeline under pressure, place the platform and pass through the driving piece drive, bear and install the shutoff board on the frame, the side orientation of shutoff board place the platform, it is used for laminating with pipeline under pressure one end, the circular array of shutoff board periphery side is constructed and is had a plurality of links. Compared with the prior art, the position that moves through drive assembly control sliding seat, indirect change sealing plate's position, then make sealing plate press through adjusting part and hold on the ring flange, the ring flange of cooperation customization can detect the metal pressure pipeline of different diameters, need not customize two ring flanges, also need not install blast pipe and connecting pipe on the ring flange of customization, convenience more during the use.

Description

Pressure pipeline detection equipment

Technical Field

The application relates to the technical field of pipeline detection, in particular to pressure pipeline detection equipment.

Background

When the metal pressure pipeline is processed, the diameter of a pipe body of some pressure pipelines is larger, the thickness of the pipeline is thinner and the like, when the pressure pipeline is processed, the pipeline and the flange are separately processed, the flange is welded at the end part of the pipeline after the pressure pipeline is processed, so that the metal pressure pipe is conveniently connected with other pipelines, the pressure pipeline manufactured by the processing technology needs to be subjected to internal pressure detection, an industrial underground water pipe part is manufactured by adopting the processing mode, the processed metal pressure pipeline is plugged at two ends of the metal pressure pipe through a special sealed flange plate, one sealed flange plate is provided with a connecting pipe communicated with the inside of the metal pressure pipeline, the other flange plate is provided with an exhaust pipe, a ball valve is arranged on the exhaust pipe, then a pressure applying pipe of the pipeline pressure testing pump is connected with the connecting pipe, water is injected into the metal pressure pipeline through the pipeline pressure testing pump until the inside of the metal pressure pipeline to be detected is filled with water, the ball valve is closed, the pipeline pressure testing pump continues to inject water into the metal pressure pipeline to be detected, when a pressure gauge on the pipeline pressure testing pump on the pipeline reaches corresponding pressure value, whether the water leakage position between the pipeline and the pipeline is qualified or not, and whether the pressure testing pressure of the existing pipeline is convenient to detect the pressure testing of two sealed pipelines with different diameters of the existing pipeline.

Disclosure of Invention

The purpose of this application lies in: to address the problems identified above in the background, the present application provides a pressure line detection apparatus.

The following technical scheme is specifically adopted in order to achieve the purpose:

pipeline under pressure check out test set, including pipeline pressure testing pump, one side of pipeline pressure testing pump is installed and is born the frame, bear vertical slidable mounting and be used for placing the platform of placing of pipeline under pressure, it passes through the driving piece drive to place the platform, bear and install the shutoff board on the frame, a side orientation of shutoff board place the platform, it is used for laminating with pipeline under pressure one end, the circular array structure of shutoff board periphery side has a plurality of links, there is the sliding seat along its length direction slidable mounting on the link, rotate on the sliding seat and install and be used for pressing and hold the sealing plate of pipeline under pressure flange one side, install the drive on the shutoff board sealing plate pivoted adjusting part, it is a plurality of to install the drive on the shutoff board the sliding seat is close to in step or keeps away from the drive assembly of shutoff board axis, install the blast pipe that is the L type on the shutoff board, blast pipe level to one end with the shutoff board is connected and communicates with pipeline under pressure inside, the blast pipe other end is vertical upwards just installs the water valve, the intercommunication has the inlet tube that communicates with pipeline under pressure intercommunication on the shutoff board, the inlet tube free end installs.

Further, the drive assembly comprises a connecting sleeve coaxially fixedly arranged on one side, far away from the placing table, of the plugging plate, the horizontal end of the exhaust pipe is located in the connecting sleeve, a rotating disc is rotatably arranged on the outer peripheral side of the connecting sleeve, a driving rod is eccentrically hinged between the sliding seat and the rotating disc, and a limiting part used for limiting the rotating disc in a rotating mode is arranged on the plugging plate.

Furthermore, the limiting part comprises a sliding plate which is slidably mounted on the blocking plate, an arc gear is mounted on one side of the sliding plate, a linkage gear meshed with the arc gear is sleeved on the outer peripheral side of the rotating disc, the sliding direction of the sliding plate faces to the axis of the rotating disc, a threaded rod is rotatably mounted on the blocking plate, and the sliding plate is sleeved on the threaded rod in a threaded manner.

Further, the adjusting part comprises a transmission rod which is rotatably installed in the connecting sleeve, a linkage piece is installed between the transmission rod and the sealing pressing plate, and when the transmission rod rotates, the linkage piece enables the free ends of the sealing pressing plates to be synchronously close to or far away from the blocking plate.

Furthermore, the interlock piece includes that the screw sleeve overlaps the connecting plate on the transfer line, circular array articulates on the connecting plate has the sleeve, telescopic free end slides and inserts and is equipped with the drive loop bar, the free end of drive loop bar articulates there is the connecting rod, the free end of connecting rod with sealed clamp plate is connected, install on the drive loop bar and be used for relieving spacing or spacing its sliding position's locking piece.

Further, a through groove has been seted up along its length direction in telescopic one side, the locking piece is in including the structure drive loop bar one side and pass the connecting block of through groove, sliding on the connecting block is inserted and is equipped with the drive block, the symmetry is rotated on the drive block and is installed two location splint, the confession has all been seted up along its length direction in the both sides that the sleeve is relative location splint insert the locking groove of establishing. Two install between the locating splint and be curved conflict spring.

The sealing device further comprises a pressing plate, the pressing surface of the pressing plate is arc-shaped, a convex rod is formed in the middle of one side of the pressing plate, and the convex rod is hinged to the free end of the sealing pressing plate.

Furthermore, a sealing rubber pad is installed at one end of the plugging plate, which is attached to the pressure pipeline.

Further, a connecting seat is installed on the bearing frame, the free end of the transmission rod is rotatably installed on the connecting seat, and an outer hexagonal nut is constructed on the outer peripheral side of the transmission rod.

Further, the top of the placing table is V-shaped and is used for placing a pressure pipeline.

The beneficial effects of this application are as follows:

compared with the prior art, the position that moves through drive assembly control sliding seat, indirect change sealing plate's position, then make sealing plate press through adjusting part and hold on the ring flange, the ring flange of cooperation customization can detect the metal pressure pipeline of different diameters, need not customize two ring flanges, also need not install blast pipe and connecting pipe on the ring flange of customization, convenience more during the use.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic diagram of a portion of the structure of the present application;

FIG. 3 is a partial perspective cross-sectional view of FIG. 2 of the present application;

FIG. 4 is an enlarged view of a portion of FIG. 2 of the present application;

FIG. 5 is an enlarged view of the structure at B in FIG. 3;

FIG. 6 is a schematic view from another perspective of FIG. 2;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C;

reference numerals: 1. a pipeline pressure test pump; 2. a carrier; 3. a placing table; 4. a plugging plate; 5. a connecting frame; 6. a sliding seat; 7. sealing the pressure plate; 8. an adjustment assembly; 801. a transmission rod; 802. a linkage member; 8021. a connecting plate; 8022. a sleeve; 8023. driving the loop bar; 8024. a connecting rod; 9. a drive assembly; 901. connecting sleeves; 902. rotating the disc; 903. a drive rod; 10. an exhaust pipe; 11. a water valve; 12. a limiting member; 1201. a sliding plate; 1202. an arc gear; 1203. a threaded rod; 1204. a linkage gear; 13. pressing and holding the plate; 14. a nose bar; 15. sealing the rubber gasket; 16. a connecting seat; 17. an outer hexagonal nut; 18. a water inlet pipe; 19. a locking member; 1901. penetrating a groove; 1902. connecting blocks; 1903. a drive block; 1904. positioning the clamping plate; 1905. a locking groove; 1906. against the spring; 20. a water pipe joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1-7, an embodiment of the present application provides a pressure pipeline detection apparatus, including a pipeline pressure test pump 1, a bearing frame 2 is installed at one side of the pipeline pressure test pump 1, a placing table 3 for placing a pressure pipeline is vertically and slidably installed on the bearing frame 2, the placing table 3 is driven by a driving member, specifically, four telescopic rods are installed at the bottom of the placing table 3 in a rectangular distribution manner, one end of each telescopic rod is connected to the bearing frame 2, the driving member is a hydraulic cylinder installed on the bearing frame 2, an output end of the hydraulic cylinder is connected to the bottom of the placing table 3, a plugging plate 4 is installed on the bearing frame 2, one side surface of the plugging plate 4 faces the placing table 3 and is used for being attached to one end of the pressure pipeline, a plurality of connecting frames 5 are constructed on a circular array at the outer peripheral side of the plugging plate 4, a sliding seat 6 is slidably installed on the connecting frames 5 along the length direction thereof, a sealing press plate 7 for pressing one side of a flange of the pressure pipeline is installed on the plugging plate 4, an adjusting assembly 8 for driving the sealing press plate 7 to rotate is installed on the plugging plate 4, a driving assembly 9 for driving the plurality of sliding seats 6 to be close to or far from the axis of the plugging plate 4 synchronously, a water inlet pipe is installed on the exhaust pipe, a water inlet pipe 10, and a water inlet pipe 18 connected to a water inlet pipe, and a water inlet pipe connector 20 connected to a water inlet pipe, the exhaust pipe connector 18 connected to a water inlet pipe, the exhaust pipe connector 18, the exhaust pipe connector is connected to the exhaust pipe connector, the exhaust pipe connector 10;

when the sealing device is used, firstly, a metal pressure pipeline to be detected is placed on the placing table 3, then the hydraulic cylinder is started to enable the placing table 3 to move upwards until the metal pressure pipeline to be detected is coaxial with the blocking plate 4, the blocking plate 4 is disc-shaped, then, the metal pressure pipeline to be detected is moved to enable one end of the metal pressure pipeline to be detected to be attached to the blocking plate 4, at the moment, a customized sealing flange plate can be used at one end of the metal pressure pipeline to be detected, the sealing flange plate does not need to be provided with a connecting pipe and an exhaust pipe 10, the processing is convenient, the construction period is reduced, the customized sealing flange plate is fixed at one end of the metal pressure pipeline to be detected through bolts, at the moment, the sliding seat 6 is moved through the driving component 9, the sliding seat 6 is moved to drive the position of the sealing pressure plate 7 arranged on the sliding seat 6 to change, and the sealing pressure plate 7 can be pressed on one side of the flange plate of the metal pressure pipeline to be detected in subsequent rotation, then the sealing pressure plates 7 are rotated through the adjusting component 8 until the sealing pressure plates 7 are pressed on the flange plate of the metal pressure pipeline to be detected, so that one end of the flange plate is abutted against the plugging plate 4, thereby achieving the sealing effect, then the pressure applying pipe of the pressure testing pump is connected with one end of the water inlet pipe 18, then the pressure testing pump is started, so that the interior of the metal pressure pipeline to be detected is filled with water until water overflows from the exhaust pipe 10, which indicates that air in the metal pressure pipeline to be detected is exhausted, then the water valve 11 is closed, water is continuously supplied to the water inlet pipe 18 until a pressure gauge on the pressure testing pump reaches a corresponding numerical value, compared with the prior art, the position of the sealing pressure plates 7 is indirectly changed by controlling the position of the sliding seat 6 to move through the driving component 9, then the sealing pressure plates 7 are pressed on the flange plate through the adjusting component 8, the ring flange of a customization of cooperation can detect the metal pipeline under pressure of different diameters, need not customize two ring flanges, also need not install blast pipe 10 and connecting pipe on the ring flange of customization, more convenience during the use.

As shown in fig. 1, 5 and 6, in some embodiments, the driving assembly 9 includes a connecting sleeve 901 coaxially and fixedly disposed on a side of the plugging plate 4 away from the placing table 3, a horizontal end of the exhaust pipe 10 is disposed in the connecting sleeve 901, a rotating disc 902 is rotatably disposed on an outer peripheral side of the connecting sleeve 901, a driving rod 903 is eccentrically hinged between the sliding seat 6 and the rotating disc 902, and a limiting member 12 for limiting rotation of the rotating disc 902 is disposed on the plugging plate 4, that is, when one sliding seat 6 is moved, the sliding seat 6 moves to drive the driving rod 903 hinged on the sliding seat 6 to move, because one end of the driving rod 903 is hinged on the rotating disc 902, so that the rotating disc 902 rotates, and the rotating disc 902 drives other driving rods 903 to move during the rotation, so that other sliding seats 6 move synchronously, and there is no need to perform repeated movement adjustment on each sliding seat 6, which is more convenient to use, and then the limiting member 12 limits an angle of the rotating disc 902, so that the sliding positions of the plurality of sliding seats 6 can be limited.

As shown in fig. 1, 4 and 6, in some embodiments, the limiting member 12 includes a sliding plate 1201 slidably mounted on the blocking plate 4, an arc gear 1202 is mounted on one side of the sliding plate 1201, an interlocking gear 1204 engaged with the arc gear 1202 is sleeved on an outer peripheral side of the rotating plate 902, a sliding direction of the sliding plate 1201 faces an axis of the rotating plate 902, a threaded rod 1203 is rotatably mounted on the blocking plate 4, the sliding plate 1201 is threadedly sleeved on the threaded rod 1203, when the threaded rod 1203 is rotated, the sliding plate 1201 moves along the axis of the threaded rod 1203 when the threaded rod 1203 is rotated, so that the arc gear 1202 on the sliding plate 1201 is engaged with the interlocking gear 1204, and because the arc gear 1202 is mounted on the sliding plate 1201 and can only move but cannot rotate, the interlocking gear 1204 cannot rotate after the arc gear 1202 is engaged with the interlocking gear 1204, so as to limit a rotation angle of the rotating plate 902.

As shown in fig. 4 and 5, in some embodiments, the adjusting assembly 8 includes a transmission rod 801 rotatably installed in the connecting sleeve 901, and a linkage 802 is installed between the transmission rod 801 and the sealing press plate 7, and when the transmission rod 801 rotates, the linkage 802 is used to enable the free ends of the plurality of sealing press plates 7 to synchronously approach or separate from the plugging plate 4, that is, when the transmission rod 801 rotates, the plurality of sealing press plates 7 can be simultaneously rotated by the adjusting assembly 8.

As shown in fig. 4, 5 and 7, in some embodiments, the linkage 802 includes a connection plate 8021 threaded on the transmission rod 801, a circular array of sleeves 8022 is hinged on the connection plate 8021, a driving sleeve 8023 is slidably inserted into a free end of the sleeve 8022, the free end of the driving sleeve 8023 is hinged to a connection rod 8024, the free end of the connection rod 8024 is connected to the sealing platen 7, a locking member 19 for releasing the position or limiting the sliding position is installed on the driving sleeve 8023, that is, when the driving sleeve 8023 is used, the locking of the sliding position of the driving sleeve 8023 is first released by the locking member 19, when the plurality of sliding seats 6 synchronously approach or move away from the axis position of the plugging plate 4, the sealing platen 7 moves to drive the driving sleeve 8023 hinged on the connection rod 8024, because the driving sleeve 8023 is slidably engaged with the sleeve 8022 and the sleeve 8022 is hinged on the connection plate 8021, and because the connection plate 8021 and the sleeve 8023 are in threaded engagement with the sleeve 8022, so that the connecting rod 8021 and the sleeve 21 can rotate to drive the connecting plate 801, when the sliding seat 6 moves, the connecting plate 801, the sleeve 21 and the sleeve 23 rotates to drive the connecting plate 801, so that the connecting plate 801 rotates, the connecting plate 801, the sleeve 21 and the sleeve 21 rotates to drive the sleeve 21 to drive the connecting plate 801, and the sleeve 21 to drive the connecting plate to rotate, therefore, when the connecting plate 8021 moves, the sealing pressing plates 7 can rotate by pulling or pushing the driving sleeve rod 8023, so that the plurality of sealing pressing plates 7 can rotate simultaneously, and the use is more convenient.

As shown in fig. 4, fig. 6 and fig. 7, in some embodiments, a through slot 1901 is opened at one side of the sleeve 8022 along a length direction thereof, the locking piece 19 includes a connecting block 1902 which is configured at one side of the driving loop bar 8023 and passes through the through slot 1901, a driving block 1903 is slidably inserted on the connecting block 1902, two positioning splints 1904 are symmetrically and rotatably installed on the driving block 1903, two opposite sides of the sleeve 8022 are both opened along a length direction thereof with a locking slot 5 for the positioning splints 1904 to be inserted, an arc-shaped interference spring 1906 is installed between the two positioning splints 1904, when one end of the positioning splints 1904 is inserted in the locking slot 1905, as shown in fig. 7, the interference spring 1906 makes the positioning splints 1904 collide in the locking slot 1905, so that one end of the positioning splints 1904 is not easily separated from the locking slot 1905, only needs to pinch the two ends of the positioning splints 1904 exposed outside and make the two ends approach each other, thereby one end of the positioning splints in the locking slot 1904 in the positioning splint 1905 are rotated to the outside, then pulls the positioning splints 1904, so that the driving block 1903 moves, thereby the positioning splints do not move away from the positioning splints, and the limiting splints move, thereby the limiting splints are not to be released, and the limiting device, and the limiting splints are also to move in the limiting device, and the limiting device is released.

As shown in fig. 2, in some embodiments, the sealing device further includes a pressing plate 13, a pressing surface of the pressing plate 13 is in a circular arc shape, a protruding rod 14 is configured at a middle portion of one side of the pressing plate 13, the protruding rod 14 is hinged to the free end of the sealing pressure plate 7, and the pressing plate 13 presses and holds one side of the flange plate, so that the pressing area is increased, and the sealing effect is further improved.

As shown in fig. 4 and 5, in some embodiments, a sealing rubber pad 15 is installed at one end of the plugging plate 4, which is attached to one end of the pressure pipe, and the sealing rubber pad 15 is designed to perform a sealing function, so that the plugging plate 4 can be prevented from overflowing water due to insufficient contact force with one end of the pressure pipe.

As shown in fig. 4 and 6, in some embodiments, the connecting seat 16 is installed on the carriage 2, the free end of the transmission rod 801 is rotatably installed on the connecting seat 16, the outer periphery of the transmission rod 801 is configured with an outer hexagonal nut 17, the connecting seat 16 is designed such that both ends of the transmission rod 801 are supported, a force bearing point is increased, the transmission rod 801 is not easily shaken when rotating, and the outer hexagonal nut 17 is designed such that a worker can rotate the transmission rod 801 more conveniently.

As shown in fig. 1, in some embodiments, the top of the placing table 3 is V-shaped for placing the pressure pipe, and the design of the V-shape makes the pressure pipe prevent from being more stable when being placed on the placing table 3, and the pressure pipe is not easy to fall off.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Pipeline under pressure check out test set, including pipeline pressure testing pump (1), its characterized in that, one side of pipeline pressure testing pump (1) is installed and is born frame (2), bear vertical slidable mounting and have platform (3) of placing that are used for placing pipeline under pressure on (2), place platform (3) and pass through the driving piece drive, bear and install shutoff board (4) on (2), the side orientation of shutoff board (4) place platform (3), it is used for laminating with pipeline under pressure one end, shutoff board (4) periphery side circular array structure has a plurality of link (5), there is sliding seat (6) along its length direction slidable mounting on link (5), rotate on sliding seat (6) and install and be used for pressing and hold sealing plate (7) of pipeline flange one side, install the drive on shutoff board (4) sealing plate (7) pivoted adjusting part (8), install on shutoff board (4) and drive a plurality of sliding seat (6) are close to or keep away from in step on the drive subassembly (9) of shutoff board (4), the shutoff board (4) is the drive subassembly (10) of blast pipe (10) and the vertical water valve (10) and the blast pipe (10) and the other end of connecting to the vertical water pipe (10) and blast pipe (10) and the blast pipe (10) connection, the blocking plate (4) is communicated with a water inlet pipe (18) communicated with a pressure pipeline, and a water pipe connector (20) is installed at the free end of the water inlet pipe (18).

2. The pressure pipeline detecting device according to claim 1, wherein the driving assembly (9) includes a connecting sleeve (901) coaxially fixed on one side of the blocking plate (4) far away from the placing table (3), one horizontal end of the exhaust pipe (10) is located in the connecting sleeve (901), a rotating disc (902) is rotatably installed on the outer periphery of the connecting sleeve (901), a driving rod (903) is eccentrically hinged between the sliding seat (6) and the rotating disc (902), and a limiting member (12) for limiting the rotation of the rotating disc (902) is installed on the blocking plate (4).

3. The pressure pipeline detecting device as claimed in claim 2, wherein the limiting member (12) comprises a sliding plate (1201) slidably mounted on the blocking plate (4), an arc-shaped gear (1202) is mounted on one side of the sliding plate (1201), a linkage gear (1204) meshed with the arc-shaped gear (1202) is sleeved on the outer peripheral side of the rotating disc (902), the sliding direction of the sliding plate (1201) faces the axis of the rotating disc (902), a threaded rod (1203) is rotatably mounted on the blocking plate (4), and the sliding plate (1201) is sleeved on the threaded rod (1203) in a threaded manner.

4. The pressure pipeline detecting device according to claim 3, characterized in that the adjusting component (8) comprises a transmission rod (801) rotatably installed in the connecting sleeve (901), a linkage (802) is installed between the transmission rod (801) and the sealing pressure plate (7), and when the transmission rod (801) rotates, the linkage (802) is used for enabling the free ends of the sealing pressure plate (7) to synchronously approach or depart from the plugging plate (4).

5. The pressure pipeline detection device as claimed in claim 4, wherein the linkage (802) comprises a connecting plate (8021) sleeved on the transmission rod (801) in a threaded manner, a sleeve (8022) is hinged to the connecting plate (8021) in a circular array, a driving loop bar (8023) is slidably inserted into a free end of the sleeve (8022), a connecting rod (8024) is hinged to a free end of the driving loop bar (8023), a free end of the connecting rod (8024) is connected with the sealing pressure plate (7), and a locking piece (19) used for releasing a limiting position or limiting the sliding position of the driving loop bar (8023) is installed on the driving loop bar (8023).

6. The pressure pipeline detecting device according to claim 5, wherein a through groove (1901) is formed in one side of the sleeve (8022) along a length direction of the sleeve, the locking member (19) comprises a connecting block (1902) which is constructed on one side of the driving sleeve rod (8023) and penetrates through the through groove (1901), a driving block (1903) is slidably inserted into the connecting block (1902), two positioning clamping plates (1904) are symmetrically and rotatably installed on the driving block (1903), locking grooves (1905) for the positioning clamping plates (1904) to insert are formed in two opposite sides of the sleeve (8022) along the length direction of the sleeve, and an arc-shaped abutting spring (1906) is installed between the two positioning clamping plates (1904).

7. The pressure pipeline detecting device according to claim 1, characterized by further comprising a holding plate (13), wherein the holding plate (13) is in a circular arc shape, a protruding rod (14) is formed in the middle of one side of the holding plate (13), and the protruding rod (14) is hinged to the free end of the sealing pressure plate (7).

8. The pressure pipe detection apparatus according to claim 1, wherein a sealing rubber gasket (15) is installed at one end of the blocking plate (4) which is attached to the pressure pipe.

9. The pressure line testing device as claimed in claim 4, characterized in that a connecting socket (16) is mounted on the carrier (2), the free end of the transmission rod (801) is rotatably mounted on the connecting socket (16), and an outer hexagonal nut (17) is formed on the outer circumference of the transmission rod (801).

10. The pressure pipeline inspection device according to claim 1, characterized in that the top of the placing table (3) is V-shaped for placing the pressure pipeline.