Pipeline detection device

Abstract

The utility model provides a pipeline detection device, which comprises a plurality of supporting mechanisms, a flexible piece, a detection probe and a driving mechanism, and is characterized in that the plurality of supporting mechanisms are arranged at intervals, rolling parts are arranged on the supporting mechanisms, and the rolling parts of the supporting mechanisms abut against the wall of a pipeline; the flexible parts have elastic deformation performance and are detachably connected among the multiple supporting mechanisms; the detection probe is arranged on the supporting mechanism, and a detection part of the detection probe is opposite to the pipeline wall and is used for detecting defects on the surface or the inner wall of the pipeline; the driving mechanism is arranged on the supporting mechanism on the farthest end side and used for driving the multiple supporting mechanisms to rotate in the circumferential direction of the pipeline wall. The supporting mechanisms and the flexible part are designed into an independent whole, the flexible part and the multiple supporting mechanisms are connected to form an integral structure, the flexible part has the elastic deformation performance, the rolling parts of the supporting mechanisms can be tightly attached to the surface of the wall of the pipeline, then the pipeline detection device can adapt to pipelines of different shapes and sizes, and therefore the detection applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to a pipeline detection device. Background Art

[0002] With the rapid development of industrialization, pipeline systems, as key infrastructure, play a vital role in the fields of oil, natural gas, chemical industry, water treatment, etc.; however, these pipelines are exposed to harsh working environments for a long time, such as high pressure, high temperature, corrosion, etc., which may cause damage, aging, cracks and other problems on their inner and outer walls; in order to ensure the safe and stable operation of the pipeline system, it is particularly important to conduct regular internal and external inspections.

[0003] A pipeline defect detection device and data analysis method with announcement number CN105806936B are applied to non-destructive testing of oil and gas pipelines; the pipeline defect detection device is mainly composed of a main body, a support, an angular displacement sensor, a distance sensor, a probe rod, a leaf spring, a defect sensor, a mileage module and a data acquisition, storage and transmission module, wherein the main body is a soft leather cup fixed at both ends of an axially arranged central axis; the support and the angular displacement sensor, the distance sensor, the probe rod, the leaf spring and the defect sensor are multiple and evenly arranged on the periphery of the central axis of the main body; the data acquisition and transmission module is arranged on the main body; one end of the probe rod is fixedly connected to the defect sensor, and the other end is hinged to the support; the leaf spring is arranged between the probe rod and the central axis of the main body; the angular displacement sensor is arranged on the support and forms an angle rotation match with the probe rod; the distance sensor is arranged on the upper part of the support; the mileage module is arranged on the central axis of the main body; the defect sensor is a Hall sensor or an ultrasonic sensor.

[0004] The above existing technical solutions can only detect the inner wall of the pipeline, but cannot be applied to the detection of external defects of the pipeline, and cannot be applied to the detection of pipelines of different shapes and sizes, thereby reducing the applicability. Utility Model Content

[0005] In view of this, the utility model proposes a pipeline detection device, which adopts a flexible modular design and can adapt to pipelines of different shapes and sizes, realize comprehensive detection of the inside and outside of the pipeline, thereby improving the detection applicability.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a pipeline detection device, including multiple support mechanisms, flexible parts, detection probes and driving mechanisms, wherein:

[0007] The plurality of support mechanisms are arranged at intervals, and a rolling portion is provided on the support mechanism, and the rolling portion of the support mechanism abuts against the pipe wall;

[0008] The flexible member has elastic deformation performance and can be detachably connected between multiple supporting mechanisms;

[0009] The detection probe is arranged on the supporting mechanism, and the detection part of the detection probe is arranged opposite to the pipeline wall, and is used to detect defects on the pipeline surface or inner wall;

[0010] The driving mechanism is arranged on the supporting mechanism at the farthest end, and is used to drive the multiple supporting mechanisms to rotate along the circumferential direction of the pipeline wall.

[0011] Preferably, the support mechanism comprises a support seat and a fixing member, wherein:

[0012] The cross-section of the support seat is arc-shaped, and a groove is provided on one side of the support seat. A fixing hole connected to the groove is also provided on the support seat, and the fixing hole is perpendicular to the groove.

[0013] One end of the flexible member passes through the plurality of grooves in sequence and abuts against the grooves;

[0014] The fixing member is threadedly connected in the fixing hole, and one end of the fixing member passes through the fixing hole and extends into the groove, and abuts against the surface of the flexible member to fix the position of the flexible member and the support seat.

[0015] Preferably, the number of the flexible parts is two, the number of grooves opened on each support seat is equal to the number of flexible parts, the corresponding two grooves are respectively opened on the opposite sides of the support seat, and the flexible parts are respectively arranged in each groove to enhance the stability of the support mechanism connection.

[0016] Preferably, the cross-sectional shape of the groove is arc-shaped, and the groove and the pipeline are arranged in concentric circles.

[0017] Preferably, the width and height of the groove are respectively the same as the width and thickness of the flexible member.

[0018] Preferably, the support mechanism further comprises a first roller assembly and a second roller assembly, wherein:

[0019] The first roller assembly and the second roller assembly are both rotatably connected in the support seat, and the first roller assembly and the second roller assembly are distributed in high and low positions;

[0020] When the inner wall of the pipeline is inspected, the outer side of the first roller assembly abuts against the inner wall of the pipeline;

[0021] When the outer wall of the pipeline is detected, the outer side of the second roller assembly abuts against the outer wall of the pipeline.

[0022] Preferably, the first roller assembly and the second roller assembly each include a fixed shaft and at least two rotating wheels, wherein:

[0023] The support seat is provided with a first cavity and a second cavity, and the fixed shafts of the first roller assembly and the second roller assembly are rotatably connected in the first cavity and the second cavity respectively;

[0024] At least two windows are provided on the support seat, and at least two rotating wheels of the first roller assembly and the second roller assembly are respectively fixed on the outside of each fixed shaft, and the positions of the rotating wheels correspond to the windows, and one side of the rotating wheel passes through and extends to the outside of the adjacent window.

[0025] Preferably, the number of the first roller assemblies and the second roller assemblies is at least two, and at least two first roller assemblies and second roller assemblies are symmetrically arranged in a vertical plane with respect to the length center point of the support seat.

[0026] Preferably, the driving mechanism comprises a connecting seat, a connecting member, a driving member and a moving wheel, wherein:

[0027] The connecting seat is fixed on a supporting seat at the farthest end;

[0028] The connecting piece is hinged on a side of the connecting seat away from the supporting seat;

[0029] The driving member is fixed to an end of the connecting member away from the connecting seat;

[0030] The moving wheel is fixed on the output end of the driving member, and the outer side wall of the moving wheel abuts against the pipeline wall.

[0031] Preferably, the driving member is a driving motor.

[0032] The pipeline detection device of the utility model has the following beneficial effects compared with the prior art:

[0033] (1) By modularizing the support mechanism and the flexible member, the flexible member is connected with multiple support mechanisms to form an integral structure. The flexible member has elastic deformation performance, so that the rolling part of the support mechanism can be closely attached to the surface of the pipeline wall, thereby being able to adapt to pipelines of different shapes and sizes, thereby improving the detection applicability. In addition, the driving mechanism drives the overall detection structure to rotate along the circumference of the pipeline wall, thereby being able to perform internal and external detection of the pipeline, thereby improving the detection efficiency;

[0034] (2) The cross-sectional shape of the groove is set in an arc shape, and the width and height of the groove are respectively the same as the width and thickness of the flexible part, so that it can better fit the shape of the flexible part, ensuring that the flexible part is stable and not easy to slide in the groove, which not only enhances the connection strength between the support mechanism and the flexible part, but also prevents the parts from loosening or falling off due to vibration or external force during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A three-dimensional diagram of the pipeline outer wall detection of the pipeline detection device of the utility model;

[0037] Figure 2 It is a front view of the pipeline outer wall detection of the pipeline detection device of the utility model;

[0038] Figure 3 It is a top view of the pipeline outer wall detection of the pipeline detection device of the utility model;

[0039] Figure 4 It is a front view of the pipeline inner wall detection of the pipeline detection device of the utility model;

[0040] Figure 5 It is a three-dimensional diagram of the support mechanism of the pipeline detection device of the utility model;

[0041] Figure 6 A three-dimensional diagram of the support mechanism of the pipeline detection device of the utility model from another perspective;

[0042] Figure 7 It is a front view of the support mechanism of the pipeline detection device of the utility model;

[0043] Figure 8 The utility model is a pipeline detection device Figure 7 Sectional view at AA;

[0044] Fig. 9 This is a side view of the pipeline outer wall detection of the pipeline detection device of the utility model. DETAILED DESCRIPTION

[0045] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] like Figure 1-9 As shown, a pipeline detection device of the utility model includes a plurality of support mechanisms 1, a flexible member 2, a detection probe 3 and a driving mechanism 4.

[0047] Among them, multiple support mechanisms 1 are arranged at intervals, and a rolling portion is provided on the support mechanism 1, and the rolling portion of the support mechanism 1 abuts against the pipeline wall; the flexible member 2 has elastic deformation performance and is detachably connected between the multiple support mechanisms 1; the detection probe 3 is arranged on the support mechanism 1, and the detection portion of the detection probe 3 is arranged opposite to the pipeline wall, which is used to detect defects on the pipeline surface or inner wall; the driving mechanism 4 is arranged on the support mechanism 1 on the farthest side, and is used to drive the multiple support mechanisms 1 to rotate circumferentially along the pipeline wall.

[0048] It should be noted that:

[0049] In this embodiment, the support mechanism 1 and the flexible member 2 are designed to be an independent whole. The number of support mechanisms 1 that are suitable can be selected according to different pipe sizes. The flexible member 2 is a flexible steel belt with elastic deformation performance. The length of the flexible member 2 can be changed according to the size of the pipe. The flexible member 2 is connected with multiple support mechanisms 1 to form an integral structure. When the outer wall of the pipe is inspected, the flexible member 2 is in a contracted state, so that the rolling part of the support mechanism 1 connected to the flexible member 2 can be closely attached to the outer wall surface of the pipe. In addition, the driving mechanism 4 drives the entire inspection structure to rotate along the outer wall of the pipe, and the inspection probe 3 detects defects on the outer wall of the pipe. The detection is carried out to realize external detection of the pipeline. When there are obstacles on the outer wall of the pipeline, it is necessary to detect the inner wall of the pipeline. At this time, the flexible member 2 is in an expanded state, so that the rolling portion of the supporting mechanism 1 connected to the flexible member 2 can be tightly attached to the outer wall surface of the pipeline, and the driving mechanism 4 is used to drive the overall detection structure to rotate circumferentially along the inner wall of the pipeline. The detection probe 3 detects defects on the inner wall of the pipeline to realize internal detection of the pipeline, and then the pipeline can be inspected inside and outside. In this process, the flexible member 2 set can be deformed, so that the rolling portions of multiple supporting mechanisms 1 are in contact with the pipeline wall, so that it can adapt to pipelines of different shapes and sizes, thereby improving the detection applicability.

[0050] As a preferred embodiment, the support mechanism 1 in this embodiment includes a support seat 11 and a fixing member 12, wherein the cross-sectional shape of the support seat 11 is arc-shaped, and a groove 110 is provided on one side of the support seat 11, and a fixing hole 120 connected to the groove 110 is also provided on the support seat 11, and the fixing hole 120 is perpendicular to the groove 110; one end of the flexible member 2 passes through a plurality of grooves 110 in sequence and abuts against the groove 110; the fixing member 12 is threadedly connected in the fixing hole 120, and one end of the fixing member 12 passes through the fixing hole 120 and extends into the groove 110, and abuts against the surface of the flexible member 2, thereby fixing the position of the flexible member 2 and the support seat 11.

[0051] It should be noted that:

[0052] By opening a groove 110 in the support mechanism 1, an installation space is provided for the flexible member 2. The flexible member 2 is firmly fixed on the support seat 11 through the fixing member 12, and can maintain a stable connection with the support seat 11 to ensure the overall stability of the device during the detection process. The fixing member 12 adopts a threaded connection method, which makes installation and disassembly very convenient, thereby meeting the needs of replacing flexible members 2 of different lengths according to actual needs to adapt to pipeline detection needs of different sizes. In addition, when a component of the support mechanism 1 is damaged, it can be replaced separately, reducing maintenance costs.

[0053] In this embodiment, the number of flexible parts 2 is two, and the number of grooves 110 opened on each support seat 11 is equal to the number of flexible parts 2. The corresponding two grooves 110 are respectively opened on the opposite sides of the support seat 11, and each flexible part 2 is respectively arranged in each groove 110 to enhance the stability of the connection of the support mechanism 1.

[0054] It should be noted that the two grooves 110 are respectively opened on the opposite sides of the support seat 11 to ensure that the flexible member 2 is more evenly distributed on the support seat 11, thereby avoiding deformation or damage due to uneven force; at the same time, the setting of the two flexible members 2 also increases the connection strength between the support mechanism 1, making the entire detection device more stable when moving on the surface or inner wall of the pipeline, reducing the possibility of shaking and deviation.

[0055] The cross-sectional shape of the groove 110 in this embodiment is arc-shaped, and the groove 110 and the pipe are arranged in a concentric circle. The width and height of the groove 110 are respectively the same as the width and thickness of the flexible member 2.

[0056] It should be noted that the arc-shaped design of the groove 110 enables it to better fit the shape of the flexible part 2, ensuring that the flexible part 2 is stable and not easy to slide in the groove 110, which not only enhances the connection strength between the support mechanism 1 and the flexible part 2, but also prevents the parts from loosening or falling off due to vibration or external force during the detection process.

[0057] In this embodiment, the support mechanism 1 also includes a first roller assembly 13 and a second roller assembly 14, wherein the first roller assembly 13 and the second roller assembly 14 are both rotatably connected in the support seat 11, and the first roller assembly 13 and the second roller assembly 14 are distributed in high and low positions; when the inner wall of the pipeline is detected, the outer side of the first roller assembly 13 abuts against the inner wall of the pipeline; when the outer wall of the pipeline is detected, the outer side of the second roller assembly 14 abuts against the outer wall of the pipeline.

[0058] It should be noted that:

[0059] The first roller assembly 13 and the second roller assembly 14 are provided to reduce the friction resistance of the device when it moves on the pipe wall, making the entire detection process more stable and smooth.

[0060] As a preferred embodiment, the first roller assembly 13 and the second roller assembly 14 in this embodiment both include a fixed shaft 131 and at least two rotating wheels 132, wherein a first cavity 130 and a second cavity 140 are provided in the support seat 11, and the fixed shafts 131 of the first roller assembly 13 and the second roller assembly 14 are respectively rotatably connected in the first cavity 130 and the second cavity 140; at least two windows 150 are opened on the support seat 11, and at least two rotating wheels 132 of the first roller assembly 13 and the second roller assembly 14 are respectively fixed on the outside of each fixed shaft 131, and the positions of the rotating wheels 132 and the windows 150 correspond, and one side of the rotating wheel 132 passes through and extends to the outside of the adjacent window 150.

[0061] In addition, the number of the first roller assembly 13 and the second roller assembly 14 is at least two, and the at least two first roller assemblies 13 and the second roller assemblies 14 are symmetrically arranged in a vertical plane with respect to the length center point of the support seat 11 .

[0062] It should be noted that:

[0063] Increasing the number of roller assemblies can more evenly disperse the pressure of the device on the pipe wall, reduce the risk of excessive force at a single point, and thus reduce damage to the pipe wall. At the same time, symmetrically arranged roller assemblies can ensure that the device is subjected to balanced force during movement, reduce deviation or shaking caused by uneven force, and improve detection accuracy.

[0064] As a preferred embodiment, the driving mechanism 4 in this embodiment includes a connecting seat 41, a connecting member 42, a driving member 43 and a moving wheel 44, wherein the connecting seat 41 is fixed on the farthest side support seat 11; the connecting member 42 is hinged on the side of the connecting seat 41 away from the support seat 11; the driving member 43 is fixed on the end of the connecting member 42 away from the connecting seat 41; the moving wheel 44 is fixed on the output end of the driving member 43, and the outer wall of the moving wheel 44 abuts against the pipe wall.

[0065] It should be noted that:

[0066] The driving member 43 drives the moving wheel 44 to rotate, so that the assembled overall detection structure rotates circumferentially along the pipe wall to achieve circumferential rotation.

[0067] Specifically, the driving member 43 in this embodiment is a driving motor.

[0068] Working principle:

[0069] The flexible member 2 is sequentially abutted against the grooves 110 on the same side of each support seat 11, and the fixing member 12 is rotated to make it abut against the surface of the flexible member 2, thereby connecting the flexible member 2 with multiple support seats 11 to form an integral detection structure; when detecting the outer wall of the pipeline, the flexible member 2 is in a contracted state, thereby allowing the second roller assembly 14 of the support mechanism 1 connected to the flexible member 2 to be tightly attached to the outer wall surface of the pipeline, and the moving wheel 44 is driven to rotate by the driving member 43, so that the assembled integral detection structure rotates circumferentially along the pipeline wall, and the detection probe 3 detects defects on the inner wall of the pipeline. Similarly, when detecting the inner wall of the pipeline, the flexible member 2 is in an expanded state, thereby allowing the rolling portion of the support mechanism 1 connected to the flexible member 2 to be tightly attached to the outer wall surface of the pipeline, thereby realizing internal and external detection of the pipeline.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline detection device, characterized in that: It comprises a plurality of supporting mechanisms (1), a flexible member (2), a detection probe (3) and a driving mechanism (4), wherein: The plurality of support mechanisms (1) are arranged at intervals, and a rolling portion is provided on the support mechanism (1), and the rolling portion of the support mechanism (1) abuts against the pipe wall; The flexible member (2) has elastic deformation performance and is detachably connected between the plurality of supporting mechanisms (1); The detection probe (3) is arranged on the support mechanism (1), and the detection part of the detection probe (3) is arranged opposite to the pipeline wall, and is used to detect defects on the pipeline surface or inner wall; The driving mechanism (4) is arranged on the support mechanism (1) at the farthest end, and is used to drive the plurality of support mechanisms (1) to rotate circumferentially along the pipe wall.

2. The pipeline detection device according to claim 1, characterized in that: The support mechanism (1) comprises a support seat (11) and a fixing member (12), wherein: The cross-section of the support seat (11) is arranged in an arc shape, and a groove (110) is provided on one side of the support seat (11). A fixing hole (120) connected to the groove (110) is also provided on the support seat (11), and the fixing hole (120) is perpendicular to the groove (110); One end of the flexible member (2) passes through the plurality of grooves (110) in sequence and abuts against the groove (110); The fixing member (12) is threadedly connected in the fixing hole (120), and one end of the fixing member (12) passes through the fixing hole (120) and extends into the groove (110), and abuts against the surface of the flexible member (2), thereby fixing the position of the flexible member (2) and the support seat (11).

3. The pipeline detection device according to claim 2, characterized in that: The number of the flexible members (2) is two, the number of the grooves (110) provided on each support seat (11) is equal to the number of the flexible members (2), the two corresponding grooves (110) are provided on two opposite sides of the support seat (11), and the flexible members (2) are respectively arranged in the grooves (110) to enhance the stability of the connection of the support mechanism (1).

4. The pipeline detection device according to claim 3, characterized in that: The cross-sectional shape of the groove (110) is arranged in an arc shape, and the groove (110) and the pipeline are arranged in a concentric circle.

5. The pipeline detection device according to claim 3, characterized in that: The width and height of the groove (110) are respectively the same as the width and thickness of the flexible member (2).

6. The pipeline detection device according to claim 2, characterized in that: The support mechanism (1) further comprises a first roller assembly (13) and a second roller assembly (14), wherein: The first roller assembly (13) and the second roller assembly (14) are both rotatably connected in the support seat (11), and the first roller assembly (13) and the second roller assembly (14) are distributed in different heights; When the inner wall of the pipeline is inspected, the outer side of the first roller assembly (13) abuts against the inner wall of the pipeline; When the outer wall of the pipeline is inspected, the outer side of the second roller assembly (14) abuts against the outer wall of the pipeline.

7. The pipeline detection device according to claim 6, characterized in that: The first roller assembly (13) and the second roller assembly (14) each comprise a fixed shaft (131) and at least two rotating wheels (132), wherein: A first cavity (130) and a second cavity (140) are provided in the support seat (11); the fixed shafts (131) of the first roller assembly (13) and the second roller assembly (14) are rotatably connected in the first cavity (130) and the second cavity (140) respectively; At least two windows (150) are provided on the support seat (11); at least two rotating wheels (132) of the first roller assembly (13) and the second roller assembly (14) are respectively fixed on the outside of each fixed shaft (131); the positions of the rotating wheels (132) and the windows (150) correspond; and one side of the rotating wheel (132) passes through and extends to the outside of an adjacent window (150).

8. The pipeline detection device according to claim 7, characterized in that: The number of the first roller assemblies (13) and the second roller assemblies (14) is at least two, and at least two first roller assemblies (13) and second roller assemblies (14) are symmetrically arranged on a vertical plane with respect to the length center point of the support seat (11).

9. The pipeline detection device according to claim 2, characterized in that: The driving mechanism (4) comprises a connecting seat (41), a connecting member (42), a driving member (43) and a moving wheel (44), wherein: The connecting seat (41) is fixed on a side supporting seat (11) at the farthest end; The connecting member (42) is hingedly connected to a side of the connecting seat (41) away from the supporting seat (11); The driving member (43) is fixed to an end of the connecting member (42) away from the connecting seat (41); The moving wheel (44) is fixed on the output end of the driving member (43), and the outer side wall of the moving wheel (44) is in contact with the pipe wall.

10. The pipeline detection device according to claim 9, characterized in that: The driving member (43) is a driving motor.

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