Natural gas pipeline detection device

Abstract

The utility model provides a natural gas pipeline detection device which comprises an ultrasonic seam detector shell, a movable arm, an inner supporting arm, a movable abutting seat and a driving wheel. A group of ultrasonic seam detector main bodies used for detecting internal seams of a natural gas pipeline are arranged in the ultrasonic seam detector shell; a set of inner supporting rods used for keeping guiding and conveying of the pipeline of the ultrasonic crack detector are arranged in the middle of the right side of the ultrasonic crack detector body, and compared with the prior art, the ultrasonic crack detector has the advantages that due to the fact that the left movable arm extrudes the inner supporting arm to move in the compression process, the pipeline of the ultrasonic crack detector can be compressed; the three sets of inner supporting arms synchronously extrude the movable abutting bases to move on the outer sides of the inner supporting rods, springs are compressed, the springs reversely support the movable abutting bases after the springs enter the pipeline, the inner supporting arms generate reverse acting force for supporting the movable arms, the movable arms are stressed, the outer supporting frames are supported, and force is applied to the outer sides; the wheel bodies and the driving wheels drive the walking crawler belts to move in a manner of being attached to the inner wall of the natural gas pipeline.

Description

TECHNICAL FIELD

[0001] The utility model belongs to natural gas pipeline detection technical field relates to a natural gas pipeline detection device. BACKGROUND

[0002] In the existing natural gas pipeline crack detection technology, the detection device has several shortcomings in moving on the inner wall of the pipeline. First, the movement of the detection device may not be uniform, resulting in missing or repeated areas in the detection results, which is mainly due to the irregularity inside the pipeline, uneven friction caused by sediment or fouling, and the limitations of the device's own driving mechanism. Second, when the detection device moves in a long-distance pipeline, it may encounter a problem of insufficient positioning accuracy, which may cause deviation between the detection data and the actual position, affecting the accuracy of crack positioning.

[0003] The conventional coping methods include using guide wheels or brushes to improve the movement performance of the device on the inner wall of the pipeline to improve the positioning accuracy. However, these methods also have disadvantages. The guide wheels or brushes may reduce the effect due to wear and tear, and may not work effectively in pipelines with sediment, and the cost is relatively high, so there is an urgent need for a natural gas pipeline detection device to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a natural gas pipeline detection device to solve the problems raised in the background technology.

[0005] The utility model realizes the following technical scheme: a natural gas pipeline detection device, comprising: an ultrasonic crack detector shell and a drive wheel, a group of ultrasonic crack detector main bodies for detecting the internal cracks of the natural gas pipeline are arranged inside the ultrasonic crack detector shell, and an inner support rod for guiding and conveying the ultrasonic crack detector pipeline is arranged at the middle position of the right side of the ultrasonic crack detector main body.

[0006] A group of inner connecting seats for keeping the connection fixed are arranged at the connection between the inner support rod and the ultrasonic crack detector main body, the inner connecting seat is fixedly connected with the left side of the inner support rod, a group of movable abutment seats for supporting a plurality of groups of movable arms are arranged on the outer side of the left end of the inner support rod, the movable abutment seat is movably connected with the outer side of the inner support rod, and three groups of inner support arms for supporting the movable arms are arranged on the outer side of the movable abutment seat, a group of movable arms for movably supporting the outer support frame are arranged on the outer side of the inner support arm, and the inner support arm, the movable arm and the movable abutment seat are movably connected through a group of rotating shafts.

[0007] As a preferred embodiment, a group of fixed abutment seats for supporting the three groups of movable arms on the right end of the inner support rod are arranged on the outer side of the right end of the inner support rod, and the fixed abutment seat is fixedly connected with the outer side of the right end of the inner support rod.

[0008] As a preferred implementation, the outer side of the fixed seat is connected with the three groups of movable arms on the right end through three groups of rotating shafts, and the outer side of the two groups of parallel movable arms in the same horizontal plane is provided with the same group of outer support frames for installing and supporting the wheel body and the driving wheel. When the staff needs to detect the natural gas pipeline, the device is first placed inside the pipeline to be detected, and the rotating angle of the movable arms is changed according to the actual inner diameter length of the pipeline, and then the expansion degree of the device is compressed until it can enter the pipeline. After the pipeline, the left movable arm is extruded to move the inner support arm during the compression process, so that the three groups of inner support arms are extruded to move the movable seat outside the inner support rod, and the spring is compressed, and the spring supports the movable seat in the reverse direction after entering the pipeline. After entering the pipeline, the spring supports the movable arm in the reverse direction, so that the movable arm is stressed and the outer support frame is stressed outward, so that the wheel body, the driving wheel drives the walking track to move in contact with the inner wall of the natural gas pipeline.

[0009] As a preferred implementation, the outer support frame is provided with three groups, and the outer support frame is connected with the two groups of movable arms through the rotating shaft. Each outer support frame is provided with a mounting frame on the left and right ends outside.

[0010] As a preferred implementation, the left mounting frame is provided with a limiting bearing, and the limiting bearing is provided with a transmission shaft for rotating the wheel body and the driving wheel.

[0011] As a preferred implementation, the left transmission shaft is provided with a motor for providing power to the driving wheel, and the left transmission shaft is provided with a driving wheel for walking inside the natural gas pipeline to be detected.

[0012] As a preferred implementation, the right side of the transmission shaft is provided with a wheel body for cooperating with the driving wheel to rotate, and the wheel body and the driving wheel are provided with a walking track for improving the walking friction of the natural gas pipeline to be detected. When the device moves inside the natural gas pipeline to be detected, the corresponding walking track is driven by the driving wheel and the wheel body to walk along the inner wall of the natural gas pipeline to be detected, so as to prevent sliding during movement and cause movement difficulty. At the same time, cooperate with the ultrasonic joint detector main body to detect the joint in different positions inside the natural gas pipeline to be detected.

[0013] As a preferred implementation, the inner support rod is a hollow structure, and the inner support rod is provided with a wire for connecting with the ultrasonic joint detector. The wire is connected with the external detection control end.

[0014] The beneficial effects of the natural gas pipeline detection device are as follows: during the compression process, the left movable arm extrudes the inner support arm to move, thereby extruding the three groups of inner support arms to move synchronously on the outside of the inner support rod, and the spring is compressed, the spring reversely supports the movable abutting seat after entering the inside of the pipeline, and the inner support arm reversely supports the movable arm, thereby enabling the movable arm to bear force, supporting the outer support frame to exert force to the outside, enabling the wheel body and the driving wheel to drive the walking track to move in close contact with the inner wall of the natural gas pipeline.

[0015] Since the motor provides moving power, the driving wheel and the wheel body drive the corresponding walking track to walk along the inner wall of the natural gas pipeline to be detected, thereby preventing sliding during the moving process and causing the moving difficulty, and the ultrasonic seam detector body is used to detect the seam at different positions in the natural gas pipeline to be detected. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a left front oblique side view structure schematic diagram of the natural gas pipeline detection device.

[0018] Figure 2 It is a right oblique side view structure schematic diagram of the natural gas pipeline detection device.

[0019] Figure 3 It is a right oblique side view structure schematic diagram of the natural gas pipeline detection device.

[0020] Figure 4 It is Figure 1 It is a structure enlarged schematic diagram of A in the middle.

[0021] In the figure: 100-ultrasonic seam detector shell, 110-ultrasonic seam detector body, 120-movable arm, 130-inner support arm, 140-movable abutting seat, 150-inner support rod, 160-spring, 170-outer support frame, 180-mounting frame, 190-walking track, 200-wheel body, 210-motor, 220-transmission shaft, 230-inner connecting seat, 240-driving wheel. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] Please refer to Figures 1-4 A natural gas pipeline detection device, comprising: an ultrasonic seam detector shell 100, an ultrasonic seam detector main body 110, a movable arm 120, an inner support arm 130, a movable abutment 140 and a drive wheel 240, a group of ultrasonic seam detector main bodies 110 for detecting internal gaps of natural gas pipelines are arranged inside the ultrasonic seam detector shell 100, an inner support rod 150 for guiding and conveying the ultrasonic seam detector pipeline is arranged at the middle position of the right side of the ultrasonic seam detector main body 110;

[0024] An inner connecting seat 230 for keeping the connection fixed is arranged at the connection between the inner support rod 150 and the ultrasonic seam detector main body 110, the inner connecting seat 230 is fixedly sleeved with the left side of the inner support rod 150, a group of movable abutments 140 for supporting a plurality of groups of movable arms 120 are arranged on the outer side of the left end of the inner support rod 150, the movable abutments 140 are movably sleeved with the outer side of the inner support rod 150, three groups of inner support arms 130 for supporting the movable arms 120 are arranged on the outer side of the movable abutments 140, a group of movable arms 120 for movably supporting the outer support frame 170 are arranged on the outer side of the inner support arms 130, and the inner support arms 130 and the movable arms 120, and the movable arms 120 and the movable abutments 140 are movably connected through a group of rotating shafts respectively.

[0025] A group of fixed abutments for supporting the three groups of movable arms 120 on the right end are arranged on the outer side of the right end of the inner support rod 150, and the fixed abutments are fixedly connected with the outer side of the right end of the inner support rod 150.

[0026] The outer side of the fixed abutment and the three groups of movable arms 120 on the right end are also movably connected through three groups of rotating shafts, and the outer side of the two groups of parallel movable arms 120 arranged on the same horizontal plane is provided with the same group of outer support frames 170 for mounting and supporting the wheel body 200 and the drive wheel 240.

[0027] Please refer to Figures 1-4, as the first embodiment of the utility model: when the staff needs to detect natural gas pipeline, first place the device in the pipeline to be detected inside, and change the rotation angle of several groups of movable arms 120 according to the actual inner diameter length of the pipeline, then compress the expansion degree of the device until it can enter the inside of the pipeline, because the left movable arm 120 extrudes the inner support arm 130 to move during the compression process, so that the three groups of inner support arms 130 are extruded and move the movable abutment 140 outside the inner support rod 150, and the spring 160 is compressed, and after entering the inside of the pipeline, the spring 160 supports the movable abutment 140 reversely, and the inner support arm 130 supports the movable arm 120 reversely, so that the movable arm 120 is stressed, and the outer support frame 170 is stressed to the outside, so that the wheel body 200, the driving wheel 240 drives the walking track 190 to move and adhere to the inner wall of the natural gas pipeline.

[0028] The outer support frame 170 is provided with three groups, and the three groups of outer support frames 170 are respectively connected with the two groups of movable arms 120 through the rotating shaft, and each group of outer support frames 170 is provided with a group of mounting frames 180 outside the left and right ends for mounting the wheel body 200 and the driving wheel 240.

[0029] The left mounting frame 180 is provided with a group of limit bearings, and a group of transmission shafts 220 for keeping the wheel body 200 and the driving wheel 240 rotating are arranged in the middle of the limit bearings.

[0030] The left transmission shaft 220 is provided with a group of motors 210 for providing power to the driving wheel 240, and the left transmission shaft 220 is provided with a group of driving wheels 240 for walking inside the natural gas pipeline to be detected.

[0031] The right transmission shaft 220 is provided with a group of wheel bodies 200 for cooperating with the driving wheel 240 to rotate, and the wheel body 200 and the driving wheel 240 are provided with a group of walking tracks 190 for improving the walking friction of the natural gas pipeline to be detected.

[0032] Please refer to Figures 1-4 , as the second embodiment of the utility model: based on the above embodiment, further, when the device moves inside the natural gas pipeline to be detected, because the motor 210 provides moving power, the driving wheel 240 and the wheel body 200 drive the corresponding walking track 190 to walk along the inner wall of the natural gas pipeline to be detected, so as to prevent sliding during movement and cause the movement difficult to produce, and cooperate with the ultrasonic joint detector main body 110 to detect the joint inside the natural gas pipeline to be detected at different positions.

[0033] The inner support rod 150 is a hollow structure, and a group of wires for connecting with the ultrasonic joint detector are arranged in the inner support rod 150, and the wires are connected with the external detection control end.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A natural gas pipeline detection apparatus comprising: Ultrasonic seam detector shell (100), ultrasonic seam detector main body (110), movable arm (120), inner support arm (130), movable abutment (140) and drive wheel (240), characterized in that: the ultrasonic seam detector shell (100) is internally provided with a group of ultrasonic seam detector main bodies (110) for detecting the internal gap of the natural gas pipeline, and the ultrasonic seam detector main body (110) is provided with a group of inner support rods (150) for guiding and conveying the ultrasonic seam detector pipeline at the middle position of the right side; The inner support rod (150) is provided with a group of inner connecting seats (230) for keeping its connection fixed at the connection of the ultrasonic seam detector main body (110), the inner connecting seat (230) is fixedly connected with the inner support rod (150) on the left side, the inner support rod (150) is provided with a group of movable abutments (140) for supporting a plurality of movable arms (120) on the outer side of the left end, the movable abutment (140) is movably connected with the outer side of the inner support rod (150), and the outer side of the movable abutment (140) is provided with three groups of inner support arms (130) for supporting the movable arm (120), the inner support arm (130) is provided with a group of movable arms (120) for movably supporting the outer support frame (170) on the outer side, and the movable arms (120) and the movable abutments (140) are movably connected through a group of rotating shafts.

2. A natural gas pipeline inspection apparatus as defined in claim 1, wherein: The right end of the inner support rod (150) is provided with a group of fixed abutments for supporting the three groups of movable arms (120) on the right end, the fixed abutment is fixedly connected with the outer side of the right end of the inner support rod (150), and a group of springs (160) are arranged between the fixed abutment and the movable abutment (140).

3. A natural gas pipeline inspection apparatus as defined in claim 2, wherein: The outer side of the fixed abutment is also rotatably connected with the three groups of movable arms (120) on the right end through three groups of rotating shafts, and the outer sides of the two groups of parallel movable arms (120) on the same horizontal plane are provided with the same group of outer support frames (170) for mounting and supporting the wheel body (200) and the drive wheel (240).

4. A natural gas pipeline inspection apparatus as defined in claim 3, wherein: The outer support frame (170) is provided with three groups, and the three groups of outer support frames (170) are movably connected with the two groups of movable arms (120) through rotating shafts, and each group of outer support frames (170) is provided with a group of mounting frames (180) on the left and right ends of the outer side for mounting the wheel body (200) and the drive wheel (240).

5. A natural gas pipeline inspection apparatus as defined in claim 4, wherein: The left mounting frame (180) is provided with a group of limit bearings, and a group of transmission shafts (220) for keeping the wheel body (200) and the drive wheel (240) rotating are arranged at the middle position of the limit bearing.

6. A natural gas pipeline inspection apparatus as defined in claim 5, wherein: The left side of the transmission shaft (220) is provided with a group of motors (210) for providing power to the drive wheel (240), and the left side of the transmission shaft (220) is provided with a group of drive wheels (240) for walking in the natural gas pipeline to be detected.

7. A natural gas pipeline inspection apparatus as defined in claim 6, wherein: The right side of the transmission shaft (220) rear side is equipped with a group of wheel bodies (200) for matching the rotation of the driving wheel (240), and the wheel bodies (200) and the driving wheel (240) are equipped with a group of walking tracks (190) for improving the walking friction of the natural gas pipeline to be detected.

8. The natural gas pipeline inspection apparatus of claim 2, wherein: The inner support rod (150) is a hollow structure, and a group of wires for connecting the ultrasonic seam detector are arranged in the inner support rod (150), and the wires are connected with the external detection control end.

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