CN213299240U

CN213299240U - Pipeline detection device

Info

Publication number: CN213299240U
Application number: CN202021449095.2U
Authority: CN
Inventors: 何和柏; 岳天昊; 吴恒屹; 肖孟超
Original assignee: Nanchang Hangkong University
Current assignee: Nanchang Hangkong University
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-05-28
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a pipeline detection device, which belongs to the technical field of detection and comprises a detection probe, a detection unit and a control unit, wherein the detection probe is used for acquiring information of the inner wall of a pipeline and is provided with a shell; adjustable supporting mechanism sets up on the shell to be used for supporting that the test probe removes inside the pipeline, adjustable supporting mechanism includes: the supporting parts respectively penetrate through the shell and are movably arranged on the shell, and one ends of the supporting parts extending to the outside of the shell are provided with sliding parts which are used for being in sliding fit with the inner wall of the pipeline; the cone part is adjustably arranged on the shell and provided with a conical surface, the conical surface is abutted to one end, located inside the shell, of the supporting parts, and the cone part is used for moving the conical surface to prop open the supporting parts so as to adjust the length of the supporting parts extending to the outside of the shell. The utility model discloses a pipeline detection device, adaptable in to detect the not unidimensional pipeline at certain size within range.

Description

Pipeline detection device

Technical Field

The utility model relates to a detect technical field, especially relate to a pipeline detection device.

Background

The pipeline detection technology is suitable for qualitatively and quantitatively detecting defects such as dechromization, ablation, scratches and the like on the inner wall of a pipeline, detecting the quality of the inner wall of the pipeline, qualitatively and quantitatively describing the defects, evaluating the quality grade of the pipeline and providing a maintenance suggestion.

The pipeline detector is one of the main devices used for pipeline detection at present, the main information acquisition structure of the pipeline detector is a detection probe, the probe is placed in a pipeline when the pipeline detection is carried out, image information of the inner wall of the pipeline is extracted, the extracted information is finally sent to a computer processing system of the detector in the form of electric signals, and a detection result is given by the system.

When the detection probe detects the internal condition of the pipeline, the detection probe is usually directly placed in the pipeline, the cable drives the detection probe to move in the pipeline to acquire information of the inner wall of the pipeline, but because the outer diameter of the detection probe is different from the inner diameter of the pipeline, the relative position of the detection probe and the axis of the pipeline to be detected is not fixed in the pipeline detection process, the quality of the acquired image information is poor, and the accuracy of a detection result is influenced. Therefore, the existing detection probe can adopt an annular structure to be arranged outside the shell of the detection probe so that the detection probe is relatively consistent with the axis of the pipeline to be detected, but the annular structure is adopted, the annular structures with different specifications need to be replaced aiming at the inner diameters of the pipelines to be detected with different sizes, and a single annular structure cannot be adapted to the detection of the pipelines to be detected with different sizes in a certain size range, so that the replacement is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a pipeline detection device to need to change different specification ring structures when solving among the prior art and detecting different size pipelines, can't be adapted to and carry out the technical problem that detects to the not unidimensional pipeline at certain size within range.

In order to achieve the above object, an embodiment of the present application provides a pipeline detection apparatus, including: the detection probe is used for acquiring information of the inner wall of the pipeline and is provided with a shell; the adjustable supporting mechanism is arranged on the shell and used for supporting the detection probe to move in the pipeline, and the adjustable supporting mechanism comprises: the supporting parts respectively penetrate through the shell and are movably arranged on the shell, and one end, extending to the outside of the shell, of each supporting part is provided with a sliding part which is in sliding fit with the inner wall of the pipeline; the cone part is adjustably arranged on the shell and provided with a conical surface, the conical surface abuts against one end, located in the shell, of the supporting parts, and the cone part is used for moving the conical surface to prop open the supporting parts so as to adjust the length of the supporting parts extending to the outside of the shell.

In one embodiment, the support portion includes: the supporting rod penetrates through the shell and is movably arranged on the shell; the supporting block is arranged at one end, extending to the outside of the shell, of the supporting rod, and the sliding part is arranged on the outer wall of the supporting block; the guide rod penetrates through the shell and is movably arranged on the shell, and one end of the guide rod is connected with the supporting block.

In one embodiment, the support portion further comprises: the abutting block is arranged at one end, positioned in the shell, of the guide rod; and the spring is sleeved on the guide rod and is positioned between the inner wall of the shell and the abutting block.

In one embodiment, the moving direction of the support rod is the same as the diameter direction of the housing.

In one embodiment, the sliding part is a ball.

In one embodiment, the support blocks are arcuate support blocks.

In one embodiment, the cone portion includes: a cone located inside the housing, the cone comprising the conical surface; and one end of the screw rod is connected with the cone, and the screw rod is in threaded fit with the shell.

In one embodiment, the axial direction of the cone is perpendicular to the moving direction of the support.

In one embodiment, a plurality of the supporting portions are provided near an end of the housing; an end cover is arranged at the end part of the shell, a threaded hole is formed in the end cover, and the screw rod is in threaded fit with the threaded hole.

In one embodiment, the inner part of the cone is provided with a first through hole along the axial direction of the cone; a second through hole is formed in the screw rod along the axis direction of the screw rod; the first through hole is communicated with the second through hole, and a cable in the shell sequentially penetrates through the first through hole and the second through hole and extends to the outside of the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a pipeline detection device, through set up adjustable supporting mechanism on the shell at test probe to set up adjustable supporting mechanism and including the activity set up a plurality of supporting parts on the shell, adjustably set up the cone portion on the shell, set up the sliding part on the supporting part, and the conical surface of cone portion offsets with the one end that a plurality of supporting parts are located the shell inside. When needing to examine the pipeline, can put into inside the pipeline with pipeline detection device, through adjusting cone portion, so that its conical surface removes for a plurality of supporting parts, the conical surface can strut a plurality of supporting parts gradually when moving gradually to great one end by less one end with supporting part contact site, extend to the outside length of shell with adjusting the supporting part, so that the sliding part of a plurality of supporting parts respectively with pipeline inner wall sliding fit, make test probe and wait to detect the axis relative position of pipeline fixed, thereby adaptable in detecting the not unidimensional pipeline at certain size within range, it is convenient to adjust, need not to change the cyclic annular structure of different specifications.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural diagram of a pipeline detection device according to an embodiment of the present disclosure;

fig. 2 is a second schematic structural diagram of a pipeline detection device provided in the embodiment of the present application;

FIG. 3 is a third schematic structural diagram of a pipeline detection device provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an application of the pipeline detection device according to the embodiment of the present application;

fig. 5 is a second schematic structural diagram of the pipeline detection device according to the embodiment of the present application in application.

In the figure:

100. a pipeline detection device; 10. detecting a probe; 101. a housing; 20. an adjustable support mechanism; 21. a support portion; 22. a sliding part; 23. a cone portion; 230. a conical surface; 211. a support bar; 212. a support block; 213. a guide bar; 214. a resisting block; 215. a spring; 231. a cone; 232. a screw; 103. an end cap; 1030. a threaded hole; 2310. a first through hole; 2320. a second through hole; 102. a cable; 104. a CCD camera array; 105. a first illumination light source; 106. a plane mirror; 107. a second illumination source.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In order to solve the technical problem that when detecting pipelines with different sizes in the prior art, different specifications of annular structures need to be replaced, the pipeline detection device cannot be adapted to the detection of pipelines with different sizes in a certain size range, and the application provides the pipeline detection device.

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment provides a pipeline inspection device, and the pipeline inspection device 100 includes an inspection probe 10 and an adjustable support mechanism 20.

The detection probe 10 is used for collecting information of an inner wall of a pipeline, the detection probe 10 has a housing 101, and specifically, the detection probe 10 further includes a CCD camera array 104, a first illumination light source 105, a plane mirror 106 and a second illumination light source 107, which are disposed on the housing. Since the environment inside the pipe to be tested may be harsh, the housing 101 may serve to protect its internal test elements. The CCD camera array 104 adopts a miniature industrial CCD camera which is suitable for long-term stable work in a complex industrial environment and meets the requirement of pipeline detection. Due to the limited visual range of a single CCD camera, a CCD camera array 104 arranged in a certain manner is used to obtain a pipeline image within 360 °, for example, the positions of a plurality of CCD cameras may be axisymmetrically distributed with the axis of the detection probe 10 as an axis. Generally, the light in the pipeline to be detected is weak, and an external light source is required to be used for illumination in order to acquire clear image information. The lighting source adopts a white light LED lamp, light emitted by the light source irradiates the inner wall of the pipeline, reflected light with inner wall quality information is reflected by the reflector and enters the CCD camera, and is converted into an electric signal by the CCD element and is transmitted to an external system through the cable 102. In order to make the brightness of the CCD camera array 104 uniform within the visible range, two groups of illumination light sources are arranged in the detection probe 10, the first illumination light source 105 is close to the CCD camera array 104, and the emitted light illuminates the scene in the CCD camera array 104 field of view through reflection of a reflector; the second illumination light source 107 is located far from the CCD camera array 104, and light is supplemented to the first illumination light source 105. The main function of the detection probe 10 is to convert the collected optical signal into an electrical signal, so as to provide a direct basis for an external system to generate a detection result. The inspection probe 10 may be of the prior art and will not be described in detail herein.

An adjustable support mechanism 20 is disposed on the housing 101 for supporting the inspection probe 10 to move inside the pipeline. Because the detecting probe 10 has a certain length, in order to ensure that the detecting probe 10 can be sufficiently supported to ensure that the relative position of the detecting probe 10 and the axis of the pipeline is fixed in the pipeline detecting process, an adjustable supporting mechanism 20 can be respectively arranged at the front end and the rear end of the detecting probe 10. The interior of the housing 101 where the adjustable support mechanism 20 is located forms a cavity to facilitate the placement of the adjustable support mechanism 20.

The adjustable support mechanism 20 includes a support portion 21, a slide portion 22, and a tapered portion 23.

The supporting portions 21 respectively penetrate through the casing 101 and are movably disposed on the casing 101, and a sliding portion 22 for sliding fit with the inner wall of the pipeline is disposed at one end of the supporting portion 21 extending to the outside of the casing 101. The plurality of support portions 21 may be axially symmetrically distributed about the axis of the housing 101. Preferably, the supporting portions 21 are provided in three and uniformly distributed along the axial direction of the casing 101, but not limited thereto.

The taper portion 23 is adjustably disposed on the housing 101, the taper portion 23 has a conical surface 230, the conical surface 230 abuts against one end of the plurality of supporting portions 21 inside the housing 101, and the taper portion 23 is configured to move the conical surface 230 to expand the plurality of supporting portions 21 so as to adjust the length of the plurality of supporting portions 21 extending to the outside of the housing 101.

As can be seen from the above, in the pipeline inspection device provided in the embodiment of the present application, the adjustable supporting mechanism 20 is disposed on the casing 101 of the inspection probe 10, and the adjustable supporting mechanism 20 includes the plurality of supporting portions 21 movably disposed on the casing 101, the tapered portion 23 adjustably disposed on the casing 101, and the sliding portion 22 disposed on the supporting portion 21, and the conical surface 230 of the tapered portion 23 abuts against one end of the plurality of supporting portions 21 located inside the casing 101. When the pipeline needs to be detected, the pipeline detection device 100 can be placed inside the pipeline, the conical surface 230 can be moved relative to the supporting parts 21 by adjusting the conical part 23, the conical surface 230 can gradually expand the supporting parts 21 when the conical surface 230 is gradually moved from the smaller end to the larger end at the contact part with the supporting parts 21, the length of the supporting parts 21 extending to the outside of the shell 101 can be adjusted, the sliding parts 22 of the supporting parts 21 are respectively in sliding fit with the inner wall of the pipeline, the pipeline detection device is suitable for detecting pipelines with different sizes in a certain size range, the adjustment is convenient and fast, the annular structures with different specifications do not need to be replaced, the relative position of the axis of the detection probe 10 and the pipeline to be detected can be ensured to be fixed, the image information quality obtained when the detection probe 10 moves in the pipeline during detection, and the detection result precision is improved.

In this embodiment, the supporting portion 21 includes a supporting rod 211, a supporting block 212, and a guide rod 213.

The supporting rod 211 is movably disposed on the housing 101 through a first sliding through hole of the housing 101, so that the supporting rod 211 can slide in the sliding through hole. One end of the support rod 211 located inside the housing 101 abuts against the conical surface 230. The end of the support rod 211, which abuts against the conical surface 230, is provided with an arc-shaped end surface, so that the end is in sliding fit with the conical surface 230.

The supporting block 212 is fixedly disposed on the supporting rod 211 at an end extending to the outside of the housing 101, and the sliding portion 22 is disposed on an outer wall of the supporting block 212.

The guide rod 213 is movably disposed on the housing 101 through a second sliding through hole of the housing 101, so that the guide rod 213 can slide in the sliding through hole, and one end of the guide rod 213 is connected to the supporting block 212. The guide rod 213 serves as a guide limit so that the support rod 211 moves only in a straight line and is restricted from rotating.

In this embodiment, the supporting portion 21 further includes a stopper 214 and a spring 215. The abutting block 214 is fixedly disposed at one end of the guiding rod 213 located inside the casing 101. The spring 215 is sleeved on the guide rod 213 and located between the inner wall of the housing 101 and the abutting block 214. With the above arrangement, under the elastic action of the spring 215, the end of the supporting rod 211 located inside the casing 101 always abuts against the conical surface 230, so as to improve the stability of the supporting rod 211 moving on the casing 101.

In this embodiment, the moving direction of the supporting rod 211 is the same as the diameter direction of the casing 101.

In the present embodiment, the sliding portion 22 is a ball, and may be a ball joint. With the above arrangement, the smoothness of the sliding fit between the support portion 21 and the inner wall of the pipe can be improved.

In this embodiment, the supporting block 212 is an arc-shaped supporting block, and the sliding portion 22 is disposed on the outer circumferential arc-shaped surface of the supporting block 212. With the above arrangement, the supporting block 212 not only has a certain thickness and is used for the ball to be arranged, but also has a special structure on the inner wall of the pipeline, for example, a plurality of convex strips are arranged along the axial direction of the pipeline, and when a groove is formed between the adjacent convex strips, the ball can be embedded into the groove, and the contact area between the shell 101 and the inner wall of the pipeline can be reduced by the contact of the supporting block 212 and the convex strips of the pipeline, so that the movement of the detection probe 101 is prevented from being influenced by the overlarge friction between the shell and.

In the present embodiment, the cone portion 23 includes a cone 231 and a screw 232. A cone 231 is located inside the housing 101, the cone 231 comprising a conical surface 230. One end of the screw 232 is fixedly connected with the cone 231, and the screw 232 is in threaded fit with the shell 101.

In the present embodiment, the axial direction of the cone 231 is perpendicular to the moving direction of the support portion 21, that is, the axial direction of the cone 231 coincides with the axial direction of the casing 101.

In this embodiment, the plurality of supporting portions 21 are disposed near the end of the casing 101, the end of the casing 101 is provided with an end cover 103, the end cover 103 is provided with a threaded hole 1030, and the screw 232 is in threaded fit with the threaded hole 1030. By screwing the screw 232, the screw 232 performs a rotational motion and a linear motion relative to the end cap 103, and the screw 232 drives the cone 231 to perform a rotational motion and a linear motion, so that the conical surface 211 of the cone 231 moves relative to the supporting rod 211, and the supporting rod 211 can be spread or retracted, so as to adjust the length of the supporting rod 211 extending to the outside of the housing 101.

Preferably, a screwing head may be detachably provided at an end of the screw 232 located outside the casing 101, so as to facilitate screwing the screw 232.

In this embodiment, the inside of the cone 231 is provided with a first through hole 2310 in the axial direction thereof; a second through hole 2320 is formed in the screw 232 along the axial direction thereof; the first through hole 2310 and the second through hole 2320 are communicated, and the cable 102 in the housing 101 sequentially penetrates through the first through hole 2310 and the second through hole 2320 and extends to the outside of the housing 101. The cable 102 is facilitated to extend to the outside of the casing 101 in the axial direction of the casing 101. The cable is clearance fit with the first and second through

holes

2310 and 2320.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A pipeline inspection device, characterized by: the pipeline detection device comprises a pipeline detection device,

the detection probe is used for acquiring information of the inner wall of the pipeline and is provided with a shell;

the adjustable supporting mechanism is arranged on the shell and used for supporting the detection probe to move in the pipeline, and the adjustable supporting mechanism comprises:

the supporting parts respectively penetrate through the shell and are movably arranged on the shell, and one end, extending to the outside of the shell, of each supporting part is provided with a sliding part which is in sliding fit with the inner wall of the pipeline;

the cone part is adjustably arranged on the shell and provided with a conical surface, the conical surface abuts against one end, located in the shell, of the supporting parts, and the cone part is used for moving the conical surface to prop open the supporting parts so as to adjust the length of the supporting parts extending to the outside of the shell.

2. The pipeline inspection device of claim 1, wherein: the support portion includes:

the supporting rod penetrates through the shell and is movably arranged on the shell, and one end of the supporting rod, which is positioned in the shell, is abutted against the conical surface;

the supporting block is arranged at one end, extending to the outside of the shell, of the supporting rod, and the sliding part is arranged on the outer wall of the supporting block;

the guide rod penetrates through the shell and is movably arranged on the shell, and one end of the guide rod is connected with the supporting block.

3. The pipeline inspection device of claim 2, wherein: the support portion further comprises a support member which is provided with,

the abutting block is arranged at one end, positioned in the shell, of the guide rod;

and the spring is sleeved on the guide rod and is positioned between the inner wall of the shell and the abutting block.

4. The pipeline inspection device of claim 2, wherein:

the moving direction of the supporting rod is the same as the diameter direction of the shell.

5. The pipeline inspection device of claim 2, wherein:

the sliding part is a ball.

6. The pipeline inspection device of claim 2, wherein:

the supporting shoe is the arc supporting shoe.

7. The pipeline inspection device of claim 1, wherein: the conical part comprises a conical body part which is provided with a conical surface,

a cone located inside the housing, the cone comprising the conical surface;

and one end of the screw rod is connected with the cone, and the screw rod is in threaded fit with the shell.

8. The pipeline inspection device of claim 7, wherein:

the axial direction of the cone is vertical to the moving direction of the supporting part.

9. The pipeline inspection device of claim 7, wherein:

a plurality of the supporting portions are disposed close to an end of the housing;

an end cover is arranged at the end part of the shell, a threaded hole is formed in the end cover, and the screw rod is in threaded fit with the threaded hole.

10. The pipeline inspection device of claim 9, wherein:

a first through hole is formed in the cone along the axis direction of the cone;

a second through hole is formed in the screw rod along the axis direction of the screw rod;

the first through hole is communicated with the second through hole, and a cable in the shell sequentially penetrates through the first through hole and the second through hole and extends to the outside of the shell.