CN117470473A - Pipeline welding seam detection device - Google Patents

Abstract

The application provides a pipeline welding seam detection device relates to pipeline detection field. It comprises the following steps: the device comprises a joint pipe, wherein a walking assembly is arranged on the joint pipe, and a detection assembly is arranged on the joint pipe; the walking subassembly includes: the support tube is arranged on the support tube, one end of the support rod stretches into the support tube, the other end of the support rod is connected with the universal wheel, the universal wheel is abutted to the inner wall of the pipeline, and the support spring is fixed between the support rod and the inner wall of the support tube. The application has the effect of effectively detecting the joint of the pipeline.

Description

Pipeline welding seam detection device

Technical Field

The application relates to the field of pipeline detection, in particular to a pipeline welding seam detection device.

Background

Pipes are devices for transporting gas, liquid or fluid with solid particles, and pipes for municipal works are also called "municipal pipes". Common municipal plumbing works include: water supply pipelines, drainage pipelines, gas pipelines, heating pipelines and the like.

Wherein the water supply pipeline and the drainage pipeline are generally buried underground for water delivery; the water supply pipeline and the drainage pipeline are generally welded or spliced by adopting steel pipes or concrete pipes so as to achieve the effect of long-distance water delivery.

When the steel pipe is used as a pipeline for water delivery, a plurality of sections of pipelines are welded to achieve the splicing effect, so that water delivery is facilitated. However, after a long period of water delivery, the welded joint between pipes may be easily damaged due to corrosion or the like, so that leakage may easily occur; therefore, the joints of the pipes need to be detected periodically.

Currently, the method for detecting the pipeline buried under the ground is generally as follows: the camera is fixed on the trolley, then the trolley is placed in the pipeline, the trolley is controlled to the joint of the pipeline, then the camera is used for shooting the joint, finally the trolley is taken out, and the image shot by the camera is identified, so that whether the joint is damaged or not is judged.

However, because the pipeline is buried underground, the pipeline internal operation environment is more complicated, and the distance of the pipeline is generally longer, namely the distance that the camera is carried to the dolly is longer, can lead to the camera of the camera on the dolly to receive the pollution easily, cause the image that follow-up camera took comparatively fuzzy to lead to follow-up difficult effective discernment.

Disclosure of Invention

In order to improve the problems in the pipeline seam detection technology, the application provides a pipeline seam detection device.

The application provides a pipeline welding seam detection device, adopts following technical scheme:

a pipe weld inspection device for inspecting a joint of a pipe, comprising: the device comprises a joint pipe, wherein a walking assembly is arranged on the joint pipe, and a detection assembly is arranged on the joint pipe;

the walking assembly includes: the support tube is arranged on the support tube, one end of the support rod stretches into the support tube, the other end of the support rod is connected with the universal wheel, the universal wheel is in butt joint with the inner wall of the pipeline, and the support spring is fixed between the support rod and the inner wall of the support tube.

Through adopting above-mentioned technical scheme, during the detection, remove the adapter tube, until the adapter tube removes the seam crossing of pipeline, then utilize detection component to detect the gas tightness of pipeline seam, this detection component is difficult for suffering pollution and leading to unable effective discernment like the mode that the camera shot easily.

Optionally, the detection assembly includes: an inflatable portion and two sealing portions, the sealing portions comprising: the sealing device comprises a ring plate, a first bag ring, a sealing gasket and a first pressure sensor, wherein the first pressure sensor is fixed on the joint pipe, the ring plate is sleeved on the joint pipe, an air inlet cavity is formed in the ring plate, an air conveying hole communicated with the air inlet cavity is formed in the side wall of the ring plate, the first bag ring is fixedly sleeved on the ring plate, the first bag ring is communicated with the air inlet cavity, the sealing gasket is fixedly sleeved on the first bag ring, and the air charging part is arranged between the joint pipe and the ring plate.

By adopting the technical scheme, the air inlet cavity is inflated, and air continuously enters the first bag ring and enters the space between the two annular plates through the air transmission holes until the sealing gasket abuts against the inner wall of the pipeline and a certain pressure exists between the two annular plates; and then standing for a period of time, wherein the first pressure sensor detects whether the pressure value between the two annular plates changes or not, and if so, the seam of the pipeline is proved to be damaged and the pipeline needs to be maintained in time.

Optionally, the inflating part includes: the air inlet device comprises a first air pump, an air conveying pipe and an air inlet pipe, wherein one end of the air conveying pipe is communicated with one air inlet cavity, the other end of the air conveying pipe is communicated with the other air inlet cavity, the first air pump is installed in the faucet pipe, and one end of the air inlet pipe is connected with the first air pump, and the other end of the air conveying pipe is communicated with the air conveying pipe.

By adopting the technical scheme, the first air pump is started, so that the air inlet cavity can be inflated.

Optionally, a cleaning assembly is provided on the adaptor tube, the cleaning assembly including: rotation portion, pushing part and clearance portion, rotation portion includes: the device comprises a rotating plate, a driving motor and two first bearings, wherein a containing groove is formed in the bearing tube in a penetrating mode, the inner rings of the first bearings are fixed to the inner wall of the containing groove, the rotating plate is located between the two first bearings, the rotating plate is fixed to the outer rings of the first bearings, the driving motor is installed in the bearing tube, an output shaft of the driving motor is fixed to the rotating plate in a coaxial mode, and the cleaning portion is arranged on the rotating plate and is arranged between the cleaning portion and the rotating plate.

Through adopting above-mentioned technical scheme, start driving motor to the drive rotation board rotates, thereby is convenient for clear up the portion and clear up the inner wall of pipeline.

Optionally, the cleaning part includes: the device comprises a bearing rod and a scraping plate, wherein the bearing rod is arranged on the rotating plate in a sliding mode, the scraping plate is arranged on the bearing rod, and the pushing part is arranged between the bearing rod and the rotating plate.

By adopting the technical scheme, when the rotating plate rotates at a high speed, the receiving rod is thrown to the edge of the rotating plate by centrifugal force, and the pushing part pushes the scraping plate to be far away from the receiving rod in the process so as to extend to the abutting position of the sealing gasket and the inner wall of the pipeline; at this time, the scraper blade and the inner wall butt of pipeline to the scraper blade is cleared up the contact position of sealed pad and pipeline inner wall constantly, so that be difficult for on the inner wall of pipeline because of leaving the dirt and lead to sealed pad unable and the inner wall of pipeline laminating completely, thereby improves sealed pad and pipeline inner wall and pastes the leakproofness when tight mutually.

Optionally, the pushing part includes: the device comprises a screw rod, an anti-rotation rod, a pushing gear and a pushing rack, wherein a placing groove is formed in the rotating plate, the pushing rack is fixed in the placing groove, a yielding hole is formed in the supporting rod in a penetrating mode, a threaded hole is formed in the scraping plate, a connecting hole is formed in the supporting rod, the screw rod is rotatably installed in the yielding hole, one end of the screw rod is in threaded connection with the threaded hole, the other end of the screw rod extends into the placing groove and is coaxially fixed with the pushing gear, the pushing gear is meshed with the pushing rack, and one end of the anti-rotation rod is slidably connected in the connecting hole, and the other end of the screw rod is fixed with the scraping plate.

By adopting the technical scheme, when the bearing rod slides to the edge of the rotating plate, the gear is pushed to rotate so as to drive the screw rod to rotate; the rotation of the screw rod moves the pushing scraping plate towards one side far away from the receiving rod until the pushing scraping plate extends to the joint of the sealing gasket and the inner wall of the pipeline, so that effective cleaning is performed.

Optionally, the pushing part further includes: the rotary rod, retrieve rope and wind spring, the locating hole has been seted up to the inner wall of standing groove, the tip rotation of rotary rod install in the locating hole, retrieve the rope one end with accept the pole fixed, the other end with the rotary rod is fixed, the wind spring cover is located on the rotary rod and one end with the rotary rod is fixed, the other end with the inner wall of locating hole is fixed

By adopting the technical scheme, after the rotating plate stops rotating, the coil spring recovers deformation so as to drive the rotating rod to roll up the recovery rope; in the process of winding, the recovery rope will pull the adapting rod to reset, and in the process of resetting, the pushing gear will rotate again to drive the screw rod to rotate and reset the scraping plate, thereby being difficult to influence the sealing gasket to be attached to the inner wall of the pipeline.

Optionally, the detection assembly includes: a control portion, a detection portion and an air intake portion, the control portion comprising: the rotary plate, step motor and two second bearings, the mounting groove has been run through on the connecting pipe, the inner circle of second bearing with the inner wall of mounting groove is fixed, the rotary plate be located two between the second bearing and with the outer lane of second bearing is fixed, step motor install in on the connecting pipe, just step motor's output shaft with the rotor plate is coaxial fixed, detection portion set up in on the rotor plate, the inlet portion set up in between the rotor plate with the detection portion.

Through adopting above-mentioned technical scheme, start step motor to drive rotor plate drive movable ring frame rotates certain angle, then detects, and this mode can be with the seam of pipeline divide into a plurality of portions and detect, thereby can further judge the concrete position that the seam damaged.

Optionally, the detecting portion includes: the ring frame, second bag circle, rubber pad and second pressure sensor, the ring frame is fixed in on the rotor plate, just the inside of ring frame is provided with the chamber of aerifing, the inner wall of ring frame seted up with the air vent of chamber intercommunication of aerifing, the second bag circle be fixed in on the ring frame, just the second bag circle with the chamber intercommunication of aerifing, the rubber pad is fixed in on the second bag circle, second pressure sensor is fixed in on the rotor plate, the portion of admitting air set up in the rotor plate with aerify between the chamber.

By adopting the technical scheme, gas is input into the inflatable cavity and is continuously input into the second bag ring and the ring frame until the rubber pad abuts against the inner wall of the pipeline and has certain pressure in the ring frame; and then standing for a period of time, wherein the second pressure sensor detects whether the pressure value in the ring frame changes or not, and if so, the seam of the pipeline is proved to be damaged and needs to be maintained in time.

Optionally, the air inlet portion includes: the air pump comprises a communicating pipe and a second air pump, wherein the second air pump is arranged on the rotating plate, one end of the communicating pipe is communicated with the inflation cavity, and the other end of the communicating pipe is connected with the second air pump.

By adopting the technical scheme, the second air pump is started, so that the gas can be input into the inflation cavity.

In summary, the present application includes at least one of the following beneficial effects:

1. during detection, the joint pipe is moved until the joint pipe is moved to the joint of the pipeline, then the air tightness of the joint of the pipeline is detected by utilizing the detection component, and the detection component is not easy to pollute in a mode like shooting by a camera, so that the joint pipe cannot be effectively identified.

2. The stepping motor is started to drive the rotating plate to drive the movable ring frame to rotate by a certain angle, then detection is carried out, the mode can divide the joint of the pipeline into a plurality of parts for detection, and therefore the specific position of joint damage can be further judged.

3. And (3) starting the second air pump to input air into the inflation cavity.

Drawings

FIG. 1 is a schematic view of a structure according to a first embodiment of the present application;

FIG. 2 is a schematic side view of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along section line A-A in FIG. 2;

FIG. 4 is a schematic enlarged partial view of portion B of FIG. 3;

fig. 5 is a schematic structural view according to a second embodiment of the present application;

fig. 6 is a schematic cross-sectional view taken along section line C-C in fig. 5.

In the figure: 1. a socket pipe; 11. a receiving groove; 12. a mounting groove; 2. a walking assembly; 21. a support cylinder; 22. a support rod; 23. a universal wheel; 24. a support spring; 3. a sealing part; 31. a ring plate; 311. an air inlet cavity; 312. a gas delivery hole; 32. a first pocket ring; 33. a sealing gasket; 34. a first pressure sensor; 4. an inflation part; 41. a first air pump; 42. a gas pipe; 43. an air inlet pipe; 5. a rotating part; 51. a rotating plate; 511. a placement groove; 5111. a mounting hole; 52. a driving motor; 53. a first bearing; 6. a cleaning part; 61. a receiving rod; 611. a relief hole; 612. a connection hole; 62. a scraper; 621. a threaded hole; 7. a pushing part; 71. a screw rod; 72. an anti-rotation rod; 73. pushing the gear; 74. pushing the rack; 75. a rotating lever; 76. recovering the rope; 77. a coil spring; 8. a control unit; 81. a rotating plate; 82. a stepping motor; 83. a second bearing; 9. a detection unit; 91. a ring frame; 911. an air-filling cavity; 912. a vent hole; 92. a second pocket ring; 93. a rubber pad; 94. a second pressure sensor; 10. an air inlet part; 101. a communicating pipe; 102. and a second air pump.

Detailed Description

The embodiment of the application provides a pipeline welding seam detection device.

Embodiment one:

referring to fig. 1, a pipe weld detecting apparatus for detecting air tightness of a joint of a pipe includes: the extension pipe 1 all is provided with walking subassembly 2 on the lateral wall at extension pipe 1 both ends, and walking subassembly 2 includes: the support cylinder 21, the support rod 22, the universal wheel 23 and the support spring 24, the walking components 2 of the one end of the adapter tube 1 are three groups in this embodiment, and the three groups of walking components 2 are uniformly distributed along the circumferential direction of the adapter tube 1. The support cylinder 21 is fixed on the outer side wall of the adapter tube 1, one end of the support rod 22 stretches into the support cylinder 21, and the other end is connected with the universal wheel 23.

Referring to fig. 2 and 3, one end of the supporting spring 24 is fixed to one end of the supporting rod 22 away from the universal wheel 23, and the other end is fixed to the inner wall of the supporting cylinder 21, and the supporting spring 24 can push the supporting rod 22 to extend out of the supporting cylinder 21, so that the universal wheel 23 can be abutted against the inner wall of the pipe, and the joint pipe 1 can stably move in the pipe; and the pipelines with different pipe diameters can be detected, so that the applicability is improved. In the embodiment of the present application, the adaptor tube 1 may be pulled by a pulling cart (the pulling cart is not shown in the drawing) at the time of detection.

Referring to fig. 3, the bottom of the adapter tube 1 in the embodiment of the present application may further be provided with two sets of traveling assemblies 2 to support the adapter tube 1.

Referring to fig. 3, the pipe joint 1 is provided with a detection assembly for pipe joint detection, the detection assembly comprising: an inflatable portion 4 and two sealing portions 3.

Referring to fig. 3, the sealing part 3 includes: the annular plate 31, the first bag ring 32, the sealing gasket 33 and the first pressure sensor 34, the annular plate 31 is fixedly sleeved on the adapter tube 1, a distance is reserved between the annular plates 31, an annular air inlet cavity 311 is arranged in the annular plate 31, an air delivery hole 312 is formed in one side, close to each other, of the annular plates 31, and the air delivery hole 312 is communicated with the air inlet cavity 311. The first bag ring 32 is fixedly sleeved on the annular plate 31, and the first bag ring 32 is communicated with the air inlet cavity 311 by a pipe, and in the embodiment of the application, the first bag ring 32 can be made of latex or other materials so as to be capable of expanding.

Referring to fig. 3, the sealing pad 33 is fixedly sleeved on the first bag ring 32, and the sealing pad 33 can directly abut against the inner wall of the pipeline after the first bag ring 32 expands, so that the tightness between the first bag ring 32 and the inner wall of the pipeline is improved. The gasket 33 in the embodiment of the present application may be made of rubber or the like. The first pressure sensor 34 is fixedly mounted on the outer side wall of the adapter tube 1 and is located between the two annular plates 31, and in this embodiment, the first pressure sensor 34 is generally connected with a controller during actual detection so as to record detection data.

During detection, the joint pipe 1 is moved until the joint of the pipeline is positioned between the two annular plates 31, then the air inlet cavity 311 is inflated, and air continuously enters the first bag ring 32 and enters the space between the two annular plates 31 through the air transmission holes 312 until the sealing gasket 33 is abutted against the inner wall of the pipeline and a certain pressure exists between the two annular plates 31; then, the first pressure sensor 34 will detect whether the pressure value between the two annular plates 31 changes or not after standing for a period of time, if so, the seam of the pipeline is proved to be damaged, and the pipeline needs to be maintained in time, and the detection mode is not easy to be polluted like a mode shot by a camera, so that the pipeline cannot be effectively identified.

Referring to fig. 3, the air charging portion 4 includes: the first air pump 41, the air delivery pipe 42 and the air inlet pipe 43, one end of the air delivery pipe 42 is communicated with one air inlet cavity 311, and the other end is communicated with the other air inlet cavity 311. The first air pump 41 is fixedly mounted on the adapter tube 1, and one end of the air inlet pipe 43 is communicated with the air delivery pipe 42, and the other end is connected with the first air pump 41. After the socket pipe 1 moves into place, the first air pump 41 is started to inflate the air inlet cavity 311, and air continuously enters the first bag ring 32 and enters the space between the two annular plates 31 through the air conveying holes 312, so that the sealing gasket 33 abuts against the inner wall of the pipeline, and certain pressure can be provided between the two annular plates 31.

The air outlet pipe is arranged on any annular plate 31 and communicated with the air inlet cavity 311, and the electromagnetic valve is arranged on the air outlet pipe, so that after one joint is detected, the electromagnetic valve opens the air outlet pipe to release gas, and the next joint is detected conveniently. In the embodiment of the present application, electrical devices such as the electromagnetic valve and the first air pump 41 may be configured to be controlled by wireless remote control. In the embodiment of the present application, the sealability of the gasket 33 may be detected in advance before the detection.

Referring to fig. 3, cleaning components are disposed on the adaptor tube 1, in this embodiment, the cleaning components are disposed in two groups, the two groups of cleaning components are located at two ends of the adaptor tube 1 respectively, and the two groups of cleaning components are located between the walking components 2. The cleaning assembly includes: a rotating part 5, a pushing part 7 and a cleaning part 6.

Referring to fig. 3, the rotating part 5 includes: the rotating plate 51, the driving motor 52 and the two first bearings 53, the inner ring of the first bearings 53 is fixed with the inner side wall of the accommodating groove 11, the rotating plate 51 is positioned between the two first bearings 53, and the rotating plate 51 is fixed with the outer ring of the first bearings 53. The driving motor 52 is fixedly installed in the adapter tube 1, and an output shaft of the driving motor 52 is coaxially fixed with the rotating plate 51, and the driving motor 52 is started to drive the rotating plate 51 to rotate, so that the cleaning part 6 is convenient for cleaning the inner wall of the pipeline.

Referring to fig. 3, the cleaning portion 6 includes: the supporting rod 61 is slidably connected to one side of the rotating plate 51 close to the ring plate 31, and the supporting rod 61 slides along the radial direction of the rotating plate 51, in this embodiment, the supporting rod 61 is in an L shape. The scraping plate 62 is disposed at one end of the receiving rod 61 away from the rotating plate 51, and when the driving motor 52 drives the rotating plate 51 to rotate at a high speed, the receiving rod 61 is thrown to the edge of the rotating plate 51 by centrifugal force; at this time, the scraper 62 abuts against the inner wall of the pipe, so that the scraper 62 continuously cleans the contact position between the sealing pad 33 and the inner wall of the pipe, so that the sealing pad 33 cannot be completely attached to the inner wall of the pipe due to dirt remaining on the inner wall of the pipe, and the tightness of the sealing pad 33 when attached to the inner wall of the pipe is improved.

Referring to fig. 4, the pushing part 7 includes: the screw rod 71, the anti-rotation rod 72, the pushing gear 73 and the pushing rack 74, wherein the rotating plate 51 is close to one side of the annular plate 31, the placing groove 511 is formed along the radial direction of the rotating plate 51, and the pushing rack 74 is fixed in the placing groove 511 and is distributed along the length direction of the placing groove 511. The side wall of the receiving rod 61 is provided with a yielding hole 611 in a penetrating way, one side of the receiving rod 61 close to the scraping plate 62 is provided with a connecting hole 612, one side of the scraping plate 62 close to the receiving rod 61 is provided with a threaded hole 621, the screw rod 71 is rotatably arranged in the yielding hole 611, one end of the screw rod 71 is in threaded connection with the threaded hole 621, the other end of the screw rod extends into the placing groove 511 and is coaxially fixed with the pushing gear 73, and the pushing gear 73 is meshed with the pushing rack 74.

Referring to fig. 4, one end of the anti-rotation rod 72 is slidably connected in the connection hole 612 and slides along the length direction of the connection hole 612, and the other end is fixed to one side of the scraper 62 close to the receiving rod 61, so that the scraper 62 is not easy to rotate along with the screw 71 when the screw 71 rotates. When the receiving rod 61 slides to the edge of the rotating plate 51, the pushing gear 73 rotates to drive the screw 71 to rotate; the rotation of the screw 71 moves the pushing scraper 62 towards the side far away from the receiving rod 61 until reaching the joint of the sealing pad 33 and the inner wall of the pipeline, so that effective cleaning is performed.

Referring to fig. 4, the pushing part 7 further includes: the rotating rod 75, the recovery rope 76 and the coil spring 77, the inner side wall of one end of the placing groove 511 near the adapter tube 1 is provided with a placing hole 5111, and the end of the rotating rod 75 is rotatably installed in the placing hole 5111. One end of the recovery string 76 is fixed to the receiving rod 61, and the other end is fixed to the rotating rod 75.

Referring to fig. 4, the coil spring 77 is sleeved at one end of the rotation rod 75 located in the installation hole 5111, one end of the coil spring is fixed to the rotation rod 75, and the other end of the coil spring is fixed to the inner wall of the installation hole 5111, and the centrifugal force of the rotation plate 51 is greater than the deformation force of the coil spring 77 in the embodiment. After the rotation of the rotation plate 51 is stopped, the coil spring 77 resumes its shape to drive the rotation lever 75 to wind up the recovery string 76; in the process of winding, the recovery rope 76 pulls the receiving rod 61 to reset, and in the process of resetting, the pushing gear 73 rotates again to drive the screw rod 71 to rotate so as to reset the scraping plate 62, so that the sealing gasket 33 is not easy to be attached to the inner wall of the pipeline.

The working procedure of the first embodiment is specifically as follows: during detection, the joint pipe 1 is moved until the joint of the pipeline is positioned between the two annular plates 31, then the air inlet cavity 311 is inflated, and air continuously enters the first bag ring 32 and enters the space between the two annular plates 31 through the air transmission holes 312 until the sealing gasket 33 is abutted against the inner wall of the pipeline and a certain pressure exists between the two annular plates 31; then, the first pressure sensor 34 will detect whether the pressure value between the two annular plates 31 changes or not after standing for a period of time, if so, the seam of the pipeline is proved to be damaged, and the pipeline needs to be maintained in time, and the detection mode is not easy to be polluted like a mode shot by a camera, so that the pipeline cannot be effectively identified.

Embodiment two:

referring to fig. 5 and 6, the present embodiment is different from the first embodiment in that the detecting assembly includes: a control section 8, a detection section 9, and an air intake section 10.

Referring to fig. 6, the control section 8 includes: the rotating plate 81, the stepping motor 82 and the two second bearings 83, the outer side wall of the adapter tube 1 is penetrated and provided with an annular mounting groove 12, and the inner ring of the second bearings 83 is fixedly connected with the inner side wall of the mounting groove 12. The rotating plate 81 is located between the two second bearings 83, and the rotating plate 81 is fixed to the outer ring of the second bearings 83. The stepper motor 82 is fixedly mounted in the adapter tube 1, and an output shaft of the stepper motor 82 is coaxially fixed with the rotating plate 81, and the stepper motor 82 is used for driving the rotating plate 81 to rotate at a certain angle.

Referring to fig. 6, the detection section 9 includes: the ring frame 91, the second bag ring 92, the rubber pad 93 and the second pressure sensor 94, wherein the ring frame 91 is fixed on the peripheral wall of the rotating plate 81, and one end of the ring frame 91, which is far away from the rotating plate 81, is arc-shaped; an annular inflation cavity 911 is arranged in the ring frame 91, and an air vent 912 is formed in the inner side wall of the ring frame 91, and the air vent 912 is communicated with the inflation cavity 911. The second bag ring 92 is fixed on the end wall of the end of the ring frame 91 far away from the rotating plate 81, and the second bag is communicated with the inflating cavity 911 through a pipe, and in the embodiment of the present application, the second bag ring 92 is identical to the first bag ring 32 in material.

Referring to fig. 6, the rubber pad 93 is fixed to one side of the second pocket ring 92 away from the ring frame 91, and the rubber pad 93 is used for being tightly attached to the inner wall of the pipe, so that not only the second pocket ring 92 can be protected, but also the tightness between the second pocket ring 92 and the inner wall of the pipe can be improved. The second pressure sensor 94 is fixed to the peripheral wall of the rotary plate 81 and is located in the ring frame 91. The middle ring frame 91 in the embodiment of the application is also provided with an air outlet pipe communicated with the inflation cavity 911, and the air outlet pipe is provided with an electromagnetic valve.

Referring to fig. 6, the air intake portion 10 includes: the communication pipe 101 and the second air pump 102, the second air pump 102 is installed on the sidewall of the rotation plate 81, one end of the communication pipe 101 is communicated with the inflation cavity 911, and the other end is connected with the second air pump 102. During detection, the second air pump 102 is started to input air into the inflation cavity 911, and the air is continuously input into the second bag ring 92 and the ring frame 91 until the rubber pad 93 abuts against the inner wall of the pipeline and a certain pressure exists in the ring frame 91; then standing for a period of time, wherein the second pressure sensor 94 detects whether the pressure value in the ring frame 91 changes, if so, the seam of the pipeline is proved to be damaged, and the pipeline needs to be maintained in time; after the detection is completed, the stepping motor 82 is started to drive the rotating plate 81 to drive the ring frame 91 to rotate by a certain angle, and then the detection steps are repeated to detect, so that the joints of the pipeline can be divided into a plurality of parts to be detected, and the specific position of joint damage can be further judged.

The working procedure of the second embodiment is specifically as follows: during detection, the second air pump 102 is started to input air into the inflation cavity 911, and the air is continuously input into the second bag ring 92 and the ring frame 91 until the rubber pad 93 abuts against the inner wall of the pipeline and a certain pressure exists in the ring frame 91; and then standing for a period of time, wherein the second pressure sensor 94 detects whether the pressure value in the ring frame 91 changes, and if so, the seam of the pipeline is proved to be damaged, so that the pipeline needs to be maintained in time.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A pipeline weld detection device for detecting a joint of a pipeline, comprising: the device comprises a joint pipe (1), wherein a walking assembly (2) is arranged on the joint pipe (1), and a detection assembly is arranged on the joint pipe (1);

the walking assembly (2) comprises: support section of thick bamboo (21), bracing piece (22), universal wheel (23) and supporting spring (24), support section of thick bamboo (21) set up in on the connecting pipe (1), one end of bracing piece (22) stretch out and draw back in support section of thick bamboo (21), the other end with universal wheel (23) are connected, just universal wheel (23) with the inner wall looks butt of pipeline, supporting spring (24) are fixed in bracing piece (22) with between the inner wall of support section of thick bamboo (21).

2. The pipe weld inspection device of claim 1, wherein the inspection assembly comprises: an inflatable part (4) and two sealing parts (3), the sealing parts (3) comprising: the novel air inlet device comprises a ring plate (31), a first bag ring (32), a sealing gasket (33) and a first pressure sensor (34), wherein the first pressure sensor (34) is fixed on a joint pipe (1), the ring plate (31) is sleeved on the joint pipe (1), an air inlet cavity (311) is formed in the ring plate (31), an air conveying hole (312) communicated with the air inlet cavity (311) is formed in the side wall of the ring plate (31), the first bag ring (32) is fixedly sleeved on the ring plate (31), the first bag ring (32) is communicated with the air inlet cavity (311), the sealing gasket (33) is fixedly sleeved on the first bag ring (32), and an air charging part (4) is arranged between the joint pipe (1) and the ring plate (31).

3. The pipe weld detection apparatus according to claim 2, wherein the inflating portion (4) includes: first air pump (41), gas-supply pipe (42) and intake pipe (43), one end and one of them of gas-supply pipe (42) inlet chamber (311) intercommunication, the other end with another inlet chamber (311) intercommunication, first air pump (41) install in adapter (1), one end of intake pipe (43) with first air pump (41) are connected, the other end with gas-supply pipe (42) intercommunication.

4. The pipe weld inspection device of claim 1, wherein the adapter tube (1) is provided with a cleaning assembly comprising: rotation portion (5), pushing portion (7) and clearance portion (6), rotation portion (5) include: rotating plate (51), driving motor (52) and two first bearings (53), set up holding groove (11) have run through on adapter (1), the inner circle of first bearing (53) with the inner wall of holding groove (11) is fixed, rotating plate (51) are located two between first bearing (53), just rotating plate (51) with the outer lane of first bearing (53) is fixed, driving motor (52) install in adapter (1), just driving motor's (52) output shaft with rotating plate (51) coaxial fixation, clearance portion (6) set up in on rotating plate (51), promote portion (7) set up in clearance portion (6) with between rotating plate (51).

5. The pipe weld detection apparatus according to claim 4, wherein the cleaning portion (6) includes: the device comprises a bearing rod (61) and a scraping plate (62), wherein the bearing rod (61) is arranged on the rotating plate (51) in a sliding mode, the scraping plate (62) is arranged on the bearing rod (61), and the pushing part (7) is arranged between the bearing rod (61) and the rotating plate (51).

6. The pipe weld detection apparatus according to claim 5, wherein the pushing portion (7) includes: lead screw (71), prevent bull stick (72), promote gear (73) and promote rack (74), offer standing groove (511) on rotating plate (51), promote rack (74) to be fixed in standing groove (511), hold and run through on pole (61) and offered hole (611) of stepping down, offer threaded hole (621) on scraper blade (62), hold and offer connecting hole (612) on pole (61), lead screw (71) rotate install in step down hole (611) and one end threaded connection in threaded hole (621), the other end stretch into in standing groove (511) and with promote gear (73) coaxial fastening, just promote gear (73) with promote rack (74) to mesh, prevent that one end sliding connection of bull stick (72) in connecting hole (612), the other end with scraper blade (62) are fixed.

7. The pipe weld detection apparatus according to claim 6, wherein the pushing portion (7) further includes: the rotary rod (75), retrieve rope (76) and wind spring (77), install hole (5111) have been seted up to the inner wall of standing groove (511), the tip rotation of rotary rod (75) install in install hole (5111), retrieve the one end of rope (76) with accept pole (61) fixed, the other end with rotary rod (75) fixed, wind spring (77) cover is located on rotary rod (75) and one end with rotary rod (75) fixed, the other end with install the inner wall of hole (5111) fixed.

8. The pipe weld inspection device of claim 1, wherein the inspection assembly comprises: a control unit (8), a detection unit (9), and an air intake unit (10), wherein the control unit (8) comprises: the rotary plate (81), step motor (82) and two second bearings (83), install mounting groove (12) have been run through on the connecting pipe (1), the inner circle of second bearing (83) with the inner wall of mounting groove (12) is fixed, rotor plate (81) are located two between second bearing (83) and with the outer lane of second bearing (83) is fixed, step motor (82) install in on connecting pipe (1), just step motor (82)'s output shaft with rotor plate (81) coaxial fixation, detection portion (9) set up in on rotor plate (81), inlet unit (10) set up in between rotor plate (81) and detection portion (9).

9. The pipe weld detection apparatus according to claim 8, wherein the detection section (9) includes: ring frame (91), second bag circle (92), rubber pad (93) and second pressure sensor (94), ring frame (91) is fixed in on rotor plate (81), just the inside of ring frame (91) is provided with and fills air cavity (911), the inner wall of ring frame (91) seted up with air vent (912) that fills air cavity (911) intercommunication, second bag circle (92) are fixed in on ring frame (91), just second bag circle (92) with fill air cavity (911) intercommunication, rubber pad (93) are fixed in on second bag circle (92), second pressure sensor (94) are fixed in on rotor plate (81), intake portion (10) set up in rotor plate (81) with fill between air cavity (911).

10. The pipe weld detection apparatus according to claim 9, wherein the air intake portion (10) includes: the air pump comprises a communicating pipe (101) and a second air pump (102), wherein the second air pump (102) is arranged on the rotating plate (81), one end of the communicating pipe (101) is communicated with the inflation cavity (911), and the other end of the communicating pipe is connected with the second air pump (102).