CN114323454A

CN114323454A - Pipeline leakproofness detection device

Info

Publication number: CN114323454A
Application number: CN202111658428.1A
Authority: CN
Inventors: 万甫云
Original assignee: Anhui Zhongxing Fluid Equipment Co ltd
Current assignee: Anhui Zhongxing Fluid Equipment Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-12

Abstract

The invention discloses a pipeline sealing performance detection device which comprises a bottom plate, wherein an adjusting mechanism is arranged at the upper end of the bottom plate, a clamping and sealing mechanism is arranged on the adjusting mechanism, a cleaning mechanism is arranged at the top end of the adjusting mechanism, an adjustable driving mechanism matched with the cleaning mechanism and the clamping and sealing mechanism for use is arranged at the upper end of one side of the bottom plate, and an air blowing mechanism matched with the clamping and sealing mechanism for use is arranged at the upper end of the other side of the bottom plate; the first gear drives the first rotary drum to rotate and stretch the output end of the motor through the gear ring, the motor is closed when the two ends of the petroleum pipeline to be detected are clamped in the two groups of sealing grooves respectively and are in close contact with the corresponding sealing gaskets, so that the petroleum pipeline to be detected can be clamped between the first rotary drum and the second rotary drum quickly, the connection sealing performance between the petroleum pipeline to be detected and the first rotary drum and the second rotary drum is guaranteed, and the accuracy of the petroleum pipeline sealing detection result is guaranteed.

Description

Pipeline leakproofness detection device

Technical Field

The invention relates to the technical field of pipeline detection, in particular to a pipeline tightness detection device.

Background

The petroleum pipeline is a seamless steel pipe suitable for furnace tubes, heat exchangers and pipelines of petroleum refineries, and is a long-strip steel material with a hollow cross section and no seam on the periphery. And cause the oil to run off when avoiding follow-up use, consequently, the petroleum pipeline need carry out the leakproofness before using and detect, current petroleum pipeline leakproofness detection device is most directly send into the air to the petroleum pipeline inside through blower mechanism when using, and simultaneously at the pipeline outside around being provided with the ribbon, then whether the leakproofness of judging the petroleum pipeline is good through observing whether the ribbon is blown, nevertheless because the petroleum pipeline does not clear up its outer wall before detecting, thereby lead to the development that its outer wall adnexed dust etc. can influence petroleum pipeline leakproofness detection operation, and then can't ensure the accuracy nature of petroleum pipeline leakproofness detection result.

Disclosure of Invention

The present invention is directed to a device for detecting the sealing performance of a pipeline, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pipeline leakproofness detection device, includes the bottom plate, the upper end of bottom plate is equipped with adjustment mechanism, the last centre gripping sealing mechanism that is equipped with of adjustment mechanism, adjustment mechanism's top is equipped with clean mechanism, one side upper end of bottom plate is equipped with the adjustable actuating mechanism who uses with clean mechanism and the cooperation of centre gripping sealing mechanism, the opposite side upper end of bottom plate is equipped with the air-blast mechanism who uses with the cooperation of centre gripping sealing mechanism.

As a preferred technical scheme of the invention, the adjusting mechanism comprises a stud and a slide rail, a first groove and a second groove matched with the stud and the slide rail are formed in the bottom plate, the second groove is provided with two groups and symmetrically distributed on two sides of the first groove, the stud is rotatably installed in the first groove, two groups of moving blocks are sleeved on the stud in a threaded manner, an installation plate is arranged on one side of each moving block, symmetrically distributed slide blocks are arranged on two sides of the bottom end of the installation plate, the slide rail is fixedly installed at the bottom of the second groove, and the slide blocks are slidably sleeved on the slide rail.

As a preferred technical scheme of the present invention, the clamping and sealing mechanism includes a first rotating cylinder and a second rotating cylinder, the first rotating cylinder and the second rotating cylinder are respectively rotatably inserted into the two sets of mounting plates, a toothed ring is fixedly sleeved at one end of the first rotating cylinder, sealing grooves are respectively formed on opposite sides of the first rotating cylinder and the second rotating cylinder, and a sealing gasket is fixedly installed in the sealing grooves.

According to a preferred technical scheme, the cleaning mechanism comprises a first T-shaped plate and a second T-shaped plate, the first T-shaped plate and the second T-shaped plate are respectively installed at the upper ends of two groups of installation plates, a screw rod is rotatably inserted into the first T-shaped plate, one end of the screw rod is movably inserted into the second T-shaped plate, a movable plate is sleeved on the screw rod in a threaded manner, two groups of electric telescopic rods are fixedly installed on the movable plate, the output ends of the two groups of electric telescopic rods penetrate through the movable plate, a connecting piece is arranged at the tail end of the electric telescopic rods, a T-shaped clamping groove is formed in the connecting piece, a T-shaped clamping block is detachably arranged in the T-shaped clamping groove, and a cleaning plate is integrally formed at one end of the T-shaped clamping block.

As a preferred technical scheme of the invention, the connecting piece is provided with symmetrically arranged through holes in a penetrating manner, the T-shaped fixture block is provided with symmetrically distributed fixing holes, and bolts can be inserted into the through holes and the fixing holes in a threaded manner.

As a preferred technical scheme of the present invention, guide rods are symmetrically arranged on one side of the first T-shaped plate, guide holes are symmetrically arranged on the moving plate in a penetrating manner, the guide rods are slidably inserted into the guide holes, and one end of each guide rod is slidably inserted into the second T-shaped plate.

As a preferred technical scheme of the invention, the adjustable driving mechanism comprises a support, the support is fixedly arranged on a bottom plate, a motor is arranged at the top end of the support, a first gear is arranged on the output end of the motor and is meshed with a gear ring, a second gear is meshed with the outer side of the first gear and is fixedly arranged at the tail end of a screw rod, a pulling plate is slidably inserted on the support, a vertical plate is arranged at one end of the pulling plate, two ends of the vertical plate are respectively movably sleeved on the output end of the motor and a stud bolt, symmetrically arranged lantern rings are rotatably arranged at one side of the vertical plate and are respectively movably sleeved on the output end of the motor and the stud bolt, a first wheel disc is fixedly connected at one end of one set of the lantern rings, limiting grooves distributed in an array are arranged at the inner side of the first wheel disc, and limiting strips distributed in an array are fixedly arranged at the outer side of the output end of the motor, the limiting groove can be sleeved on the limiting strip in a sliding mode, the other side of the sleeve ring is provided with a second wheel disc, the second wheel disc is sleeved on the stud in a sliding mode, and a belt is movably sleeved on the outer side of the second wheel disc and the outer side of the first wheel disc.

As a preferred technical scheme of the invention, a sleeve is arranged on one side of the support, a connecting plate is arranged in an inner cavity of the sleeve in a sliding and clamping manner, a spring is arranged on one side of the connecting plate, one end of the spring is fixedly connected with the side wall of the inner cavity of the sleeve, a positioning rod is arranged on the other side of the connecting plate, two groups of positioning holes are formed in the pulling plate, and one end of the positioning rod can be inserted into the positioning holes in a sliding manner.

As a preferred technical scheme of the present invention, the blower mechanism includes a blower body, a connecting pipe is fixedly connected to the blower body, one end of the connecting pipe is rotatably connected to the second rotary drum, and an air inlet hole matched with the connecting pipe is formed in the second rotary drum in a penetrating manner.

Compared with the prior art, the invention has the beneficial effects that:

the device can ensure the accuracy of the detection result of the sealing performance of the petroleum pipeline. And can selectively drive corresponding mechanisms to operate according to different requirements, and the practicability is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is another schematic structural view of the present invention;

FIG. 3 is a schematic view of a connection structure of a part of the structure according to the present invention;

FIG. 4 is a schematic view of a portion of an adjustable driving mechanism according to the present invention;

FIG. 5 is an enlarged structural view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is an enlarged structural view of the structure at B in FIG. 4 according to the present invention;

FIG. 7 is an enlarged structural view of the structure at C in FIG. 4 according to the present invention;

FIG. 8 is a schematic view of a portion of the cleaning mechanism of the present invention.

In the figure: 1. a base plate; 11. a first groove; 12. a second groove; 2. an adjustment mechanism; 21. a stud; 22. a slide rail; 23. a moving block; 24. mounting a plate; 25. a slider; 3. clamping the sealing mechanism; 31. a first rotating drum; 32. a second rotating drum; 33. a toothed ring; 34. a sealing groove; 35. a gasket; 36. an air inlet; 4. a cleaning mechanism; 41. a first T-shaped plate; 42. a second T-shaped plate; 43. a screw rod; 44. moving the plate; 45. an electric telescopic rod; 46. a connecting member; 47. a T-shaped clamping groove; 48. a T-shaped fixture block; 49. cleaning the plate; 410. a through hole; 411. a fixing hole; 412. a bolt; 413. a guide bar; 414. a guide hole; 5. an adjustable drive mechanism; 51. a pillar; 52. a motor; 53. a first gear; 54. a second gear; 55. pulling a plate; 56. a vertical plate; 57. a collar; 58. a first wheel disc; 59. a limiting groove; 510. a limiting strip; 511. a second wheel disc; 512. a belt; 513. a sleeve; 514. a connecting plate; 515. a spring; 516. positioning a rod; 517. positioning holes; 6. a blower mechanism; 61. a blower body; 62. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a pipeline leakproofness detection device, includes bottom plate 1, and the upper end of bottom plate 1 is equipped with adjustment mechanism 2, is equipped with centre gripping sealing mechanism 3 on the adjustment mechanism 2, and adjustment mechanism 2's top is equipped with clean mechanism 4, and one side upper end of bottom plate 1 is equipped with the adjustable actuating mechanism 5 that uses with clean mechanism 4 and the cooperation of centre gripping sealing mechanism 3, and the opposite side upper end of bottom plate 1 is equipped with the air-blast mechanism 6 that uses with the cooperation of centre gripping sealing mechanism 3.

The adjusting mechanism 2 comprises a stud bolt 21 and a sliding rail 22, a first groove 11 and a second groove 12 which are matched with the stud bolt 21 and the sliding rail 22 for use are formed in the bottom plate 1, the second groove 12 is provided with two groups and symmetrically distributed on two sides of the first groove 11, the stud bolt 21 is rotatably installed in the first groove 11, two groups of moving blocks 23 are sleeved on the stud bolt 21 in a threaded mode, a mounting plate 24 is arranged on one side of each moving block 23, sliding blocks 25 which are symmetrically distributed are arranged on two sides of the bottom end of the mounting plate 24, the sliding rail 22 is fixedly installed at the bottom of the second groove 12, the sliding blocks 25 are slidably sleeved on the sliding rail 22, the adjusting mechanism is used through matching of the sliding rail 22 and the sliding blocks 25, and guarantee is provided for stable movement of the mounting plate 24.

The clamping and sealing mechanism 3 comprises a first rotating cylinder 31 and a second rotating cylinder 32, the first rotating cylinder 31 and the second rotating cylinder 32 are respectively inserted on the two sets of mounting plates 24 in a rotating mode, a toothed ring 33 is fixedly connected to one end of the first rotating cylinder 31 in a fixed mode, a sealing groove 34 is formed in the opposite side of the first rotating cylinder 31 and the opposite side of the second rotating cylinder 32, a sealing gasket 35 is fixedly mounted in the sealing groove 34, and under the coordination effect of the sealing groove 34 and the sealing gasket 35, the connection sealing performance between the petroleum pipeline to be detected and the first rotating cylinder 31 and the second rotating cylinder 32 is effectively improved, so that the accuracy of the sealing performance detection result is ensured.

Cleaning mechanism 4 includes first T template 41 and second T template 42, and first T template 41 and second T template 42 are installed respectively in the upper end of two sets of mounting panels 24, it is equipped with lead screw 43 to rotate to insert on the first T template 41, the one end activity of lead screw 43 is inserted and is established on second T template 42, and screw thread cover has connected movable plate 44 on the lead screw 43, fixed mounting has two sets of electric telescopic handle 45 on the movable plate 44, the output of two sets of electric telescopic handle 45 runs through movable plate 44 and is equipped with connecting piece 46 at its end, T type draw-in groove 47 has been seted up on the connecting piece 46, can dismantle in the T type draw-in groove 47 and be equipped with T type fixture block 48, the one end integrated into one piece of T type fixture block 48 has cleaning plate 49, cleaning plate 49 can fall the clearance such as waiting to detect the adnexed dust of petroleum pipeline outer wall, thereby the development of the petroleum pipeline leakproofness detection operation of waiting to detect subsequently provides convenience.

Through holes 410 symmetrically arranged penetrate through the connecting piece 46, fixing holes 411 symmetrically distributed are formed in the T-shaped fixture block 48, and bolts 412 can be inserted into the through holes 410 and the fixing holes 411 in a threaded mode, so that the T-shaped fixture block 48 can be fixed in the T-shaped fixture groove 47. One side of the first T-shaped plate 41 is provided with guide rods 413 which are symmetrically arranged, the moving plate 44 is provided with guide holes 414 which are symmetrically distributed in a penetrating manner, the guide rods 413 are slidably inserted into the guide holes 414, one end of each guide rod 413 is slidably inserted into the second T-shaped plate 42, and the guide rods 413 and the guide holes 414 are matched for use, so that a guarantee is provided for stable adjustment of the moving plate 44.

The adjustable driving mechanism 5 comprises a pillar 51, the pillar 51 is fixedly mounted on the bottom plate 1, and a motor 52 is arranged at the top end of the pillar 51, in the scheme: the type Y80M1-2 is preferred for the motor 52, the power supply interface of the motor is connected with the power supply system through a switch, the operation circuit of the motor 52 is a normal and reverse rotation control program of the conventional motor 52, the operation of the circuit is the conventional circuit, the circuits and the control related in the scheme are the prior art, and redundant description is not repeated herein, the output end of the motor 52 is provided with a first gear 53, the first gear 53 is meshed with the toothed ring 33, one end of the first gear 53 is rotatably connected with the first T-shaped plate 41, and the output end of the motor 52 is of a telescopic pull rod structure, so that the first gear 53 and the toothed ring 33 can be continuously in a meshed state, the outer side of the first gear 53 is meshed with a second gear 54, the second gear 54 is fixedly installed at the tail end of the screw rod 43, a pull plate 55 is slidably inserted on the support post 51, one end of the pull plate 55 is provided with a vertical plate 56, two ends of the vertical plate 56 are respectively and movably sleeved on the output end of the motor 52 and the stud 21, the lantern ring 57 that the symmetry set up is equipped with in one side rotation of riser 56, lantern ring 57 is movable respectively and cup joints on the output of motor 52 and stud 21, the first rim plate 58 of one end fixedly connected with of a set of lantern ring 57, the inner wall of first rim plate 58 and the outside contactless of motor 52 output, spacing groove 59 that the array distributes is seted up to the inboard of first rim plate 58, the outside fixed mounting of motor 52 output has spacing 510 that the array distributes, spacing groove 59 can slide and cup joint on spacing 510, one side of another lantern ring 57 is equipped with second rim plate 511, second rim plate 511 slip cap is established on stud 21, and the outside movable sleeve of second rim plate 511 and first rim plate 58 is equipped with belt 512.

One side of pillar 51 is equipped with sleeve 513, and the slip card is equipped with connecting plate 514 in the inner chamber of sleeve 513, and one side of connecting plate 514 is equipped with spring 515, and the one end of spring 515 and the inner chamber lateral wall fixed connection of sleeve 513, the opposite side of connecting plate 514 is equipped with locating lever 516, has seted up two sets of locating holes 517 on the arm-tie 55, and the one end of locating lever 516 can slide and insert and establish in locating hole 517 to can be fixed with arm-tie 55.

Blower mechanism 6 includes air-blower body 61, fixedly connected with connecting pipe 62 on air-blower body 61, and the one end of connecting pipe 62 is rotated and is connected on second rotary drum 32, and runs through on the second rotary drum 32 and set up the inlet port 36 that uses with the cooperation of connecting pipe 62, and air-blower body 61 can be to waiting to detect the inside air that sends into of petroleum pipeline to whether the banderol that sets up outside the petroleum pipeline is blown according to waiting to detect and judge whether the petroleum pipeline leakproofness is good, and this is prior art, and this is not done too much repeatedly here.

When the device works, a petroleum pipeline to be detected is moved into the first rotating drum 31 and the second rotating drum 32 through an external lifting mechanism, then a user can open the motor 52, so that the motor drives the first gear 53 to rotate, the first wheel disc 58 can be driven to rotate through the matching of the limiting strip 510 and the limiting groove 59, the second wheel disc 511 is driven to rotate through the belt 512, the two groups of mounting plates 24 can be driven to move oppositely through the use of the stud bolt 21 and the moving block 23, and the first rotating drum 31 and the second rotating drum 32 and the first T-shaped plate 41 and the second T-shaped plate 42 are driven to move oppositely.

Meanwhile, the first gear 53 drives the first rotary drum 31 to rotate through the gear ring 33 and stretches the output end of the motor 52, and the motor 52 is closed until the two ends of the petroleum pipeline to be detected are clamped in the two groups of sealing grooves 34 respectively and are in close contact with the corresponding sealing gaskets 35, so that the petroleum pipeline to be detected can be clamped between the first rotary drum 31 and the second rotary drum 32 quickly, the connection sealing performance between the petroleum pipeline to be detected and the first rotary drum 31 and the second rotary drum 32 is guaranteed, and the accuracy of the petroleum pipeline sealing detection result is ensured.

After the petroleum pipeline to be detected is clamped and fixed, a user can remove an external lifting mechanism and pull the connecting plate 514 to one side far away from the pillar 51, so as to extrude the spring 515 and separate the positioning rod 516 from one group of positioning holes 517, then the user can push the pulling plate 55 to one side close to the first rotary drum 31, so as to drive the vertical plate 56 to move, further drive the first wheel disc 58 and the second wheel disc 511 to move through the lantern ring 57, stop pushing the pulling plate 55 and loosening the connecting plate 514 until the limiting groove 59 is just separated from the limiting strip 510, at the moment, the spring 515 extends, so as to drive the positioning rod 516 to reset through the connecting plate 514, further enable one end of the positioning rod 516 to be inserted into the other positioning hole 517, through the arrangement and use of the adjustable driving mechanism 5, different mechanisms can be driven to operate simultaneously, and corresponding mechanisms can be selectively driven to operate according to different requirements, the practicability is higher.

After the pulling plate 55 is fixed again, the user can open the two sets of electric telescopic rods 45 to push the connecting piece 46 to move downwards, the electric telescopic rods 45 are closed when one side of the cleaning plate 49 is attached to the outer wall of the petroleum pipeline to be detected, then the user can sequentially drive the motor 52 to rotate alternately in the forward direction and the reverse direction, so as to drive the first gear 53 to rotate alternately in the forward direction and the reverse direction, further drive the first rotary drum 31 to rotate alternately in the forward direction and the reverse direction through the toothed ring 33, further drive the petroleum pipeline to be detected to rotate alternately in the forward direction and the reverse direction by matching with the second rotary drum 32, meanwhile, the first gear 53 drives the second gear 54 to rotate alternately in the forward direction and the reverse direction, so as to drive the screw rod 43 to rotate alternately in the forward direction and the reverse direction, further drive the moving plate 44 to move in a circulating reciprocating manner, and can simultaneously drive the cleaning plate 49 to move in a circulating manner, so as to clean up dust and the like attached to the outer wall of the petroleum pipeline to be detected, and then for the follow-up petroleum pipeline leakproofness of waiting to detect detection achievement develop provide convenience, further ensure the accuracy nature of petroleum pipeline leakproofness detection result, wait to detect the clean back of accomplishing of petroleum pipeline outer wall, the user can wait to detect the petroleum pipeline outside and set up the ribbon to open air-blast mechanism 6 and carry out follow-up detection operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pipeline leakproofness detection device, includes bottom plate (1), its characterized in that: the upper end of bottom plate (1) is equipped with adjustment mechanism (2), be equipped with centre gripping sealing mechanism (3) on adjustment mechanism (2), the top of adjustment mechanism (2) is equipped with clean mechanism (4), one side upper end of bottom plate (1) is equipped with adjustable actuating mechanism (5) of using with clean mechanism (4) and centre gripping sealing mechanism (3) cooperation, the opposite side upper end of bottom plate (1) is equipped with air blast mechanism (6) of using with centre gripping sealing mechanism (3) cooperation.

2. The pipe tightness detecting device according to claim 1, wherein: adjusting mechanism (2) include stud (21) and slide rail (22), set up on bottom plate (1) first recess (11) and second recess (12) with stud (21) and slide rail (22) cooperation use, second recess (12) are provided with two sets ofly, and the symmetric distribution is in the both sides of first recess (11), stud (21) rotate to be installed in first recess (11), and stud (21) go up the screw thread and cup jointed two sets of movable block (23), one side of movable block (23) is equipped with mounting panel (24), the bottom both sides of mounting panel (24) are equipped with the slider (25) of symmetric distribution, slide rail (22) fixed mounting is in the bottom of second recess (12), and slider (25) slip cover is established on slide rail (22).

3. The pipe tightness detecting device according to claim 2, wherein: centre gripping sealing mechanism (3) include first rotary drum (31) and second rotary drum (32), and first rotary drum (31) rotate respectively with second rotary drum (32) and insert and establish on two sets of mounting panels (24), the fixed cover in one end of first rotary drum (31) has connect ring gear (33), and the opposite side of first rotary drum (31) and second rotary drum (32) has all seted up seal groove (34), fixed mounting has sealed pad (35) in seal groove (34).

4. A pipe sealability testing apparatus according to claim 3, wherein: the cleaning mechanism (4) comprises a first T-shaped plate (41) and a second T-shaped plate (42), and the first T-shaped plate (41) and the second T-shaped plate (42) are respectively arranged at the upper ends of the two groups of mounting plates (24), a screw rod (43) is rotatably inserted on the first T-shaped plate (41), one end of the screw rod (43) is movably inserted on the second T-shaped plate (42), a moving plate (44) is sleeved on the screw rod (43) in a threaded manner, two groups of electric telescopic rods (45) are fixedly arranged on the moving plate (44), the output ends of the two groups of electric telescopic rods (45) penetrate through the moving plate (44) and are provided with connecting pieces (46) at the tail ends thereof, a T-shaped clamping groove (47) is formed in the connecting piece (46), a T-shaped clamping block (48) is detachably arranged in the T-shaped clamping groove (47), one end of the T-shaped fixture block (48) is integrally formed with a cleaning plate (49).

5. The pipe tightness detecting device according to claim 4, wherein: the connecting piece (46) is provided with through holes (410) which are symmetrically arranged in a penetrating mode, the T-shaped clamping block (48) is provided with fixing holes (411) which are symmetrically distributed, and bolts (412) can be inserted into the through holes (410) and the fixing holes (411) in a threaded mode.

6. The pipe tightness detecting device according to claim 4, wherein: the movable plate is characterized in that guide rods (413) symmetrically arranged are arranged on one side of the first T-shaped plate (41), guide holes (414) symmetrically distributed are formed in the movable plate (44) in a penetrating mode, the guide rods (413) are inserted into the guide holes (414) in a sliding mode, and one end of each guide rod (413) is inserted into the second T-shaped plate (42) in a sliding mode.

7. The pipe tightness detecting device according to claim 4, wherein: the adjustable driving mechanism (5) comprises a support column (51), the support column (51) is fixedly arranged on the bottom plate (1), and a motor (52) is arranged at the top end of the support column (51); a first gear (53) is arranged at the output end of the motor (52), the first gear (53) is meshed with the gear ring (33), and a second gear (54) is meshed at the outer side of the first gear (53); the second gear (54) is fixedly arranged at the tail end of the screw rod (43);

a pulling plate (55) is slidably inserted into the support column (51), a vertical plate (56) is arranged at one end of the pulling plate (55), and two ends of the vertical plate (56) are movably sleeved on the output end of the motor (52) and the stud (21) respectively; one side of the vertical plate (56) is rotatably provided with symmetrically arranged lantern rings (57), and the lantern rings (57) are respectively movably sleeved on the output end of the motor (52) and the stud (21);

a set of first rim plate (58) of one end fixedly connected with of the lantern ring (57), spacing groove (59) that the array distributes are seted up to the inboard of first rim plate (58), the outside fixed mounting of motor (52) output has spacing (510) that the array distributes, spacing groove (59) can slide and cup joint on spacing (510), another one side of the lantern ring (57) is equipped with second rim plate (511), second rim plate (511) slip cap is established on stud (21), and the outside activity cover of second rim plate (511) and first rim plate (58) is equipped with belt (512).

8. The pipe sealability detection apparatus of claim 7, wherein: one side of pillar (51) is equipped with sleeve (513), the slip card is equipped with connecting plate (514) in the inner chamber of sleeve (513), one side of connecting plate (514) is equipped with spring (515), the one end of spring (515) and the inner chamber lateral wall fixed connection of sleeve (513), the opposite side of connecting plate (514) is equipped with locating lever (516), two sets of locating holes (517) have been seted up on arm-tie (55), the one end of locating lever (516) can slide and insert and establish in locating hole (517).

9. A pipe sealability testing apparatus according to claim 3, wherein: the air blowing mechanism (6) comprises an air blower body (61), a connecting pipe (62) is fixedly connected to the air blower body (61), one end of the connecting pipe (62) is rotatably connected to the second rotary drum (32), and an air inlet (36) matched with the connecting pipe (62) for use is formed in the second rotary drum (32) in a penetrating mode.