A positioning device for in-pipe inspection

Abstract

The utility model discloses a positioning device for pipeline internal detection relates to pipeline detection technical field. The utility model discloses a reinforcing frame: reinforcing frame surface rotatory connection has six support bars, and the inboard of each support bar all is seted up with the sliding slot, and the surface of each support bar all is connected with second drive source, and the inboard of reinforcing frame is connected with first drive source, and the top and bottom of reinforcing frame all are connected with camera, and the driving assembly is provided on reinforcing frame. The utility model discloses through the first screw rod and the second screw rod of opposite thread direction and is convenient for respectively driving corresponding adjusting plate and connecting plate translation movement, and it is convenient to drive connecting rod drive moving wheel to extend through the hinging effect of hinging seat to adapt the pipe diameter of pipeline and the inner wall of pipeline and contact, and the pipeline of different pipe diameter is detected conveniently, and the stability of subsequent moving wheel and the inner wall of pipeline contact is improved through the sliding of sliding block in the inside sliding slot and is convenient to adapt the inclination of connecting rod, and the situation of shaking is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline detection technical field, specifically, especially relate to a positioning device for pipeline internal detection. BACKGROUND

[0002] The just processed pipeline needs to detect the inner wall, and then identify whether there is crack or other non-standard structure on the pipeline inner wall, ensure that the quality of the pipeline meets the regulation, usually the detection process will use positioning mechanism to install the detection camera, then fix the detection camera in the inside of the pipeline by the positioning mechanism, the operation of the positioning mechanism can make the detection instrument complete the omnibearing detection of the pipeline inner wall.

[0003] Among them, the Chinese patent CN202320166485.6 discloses a pipeline internal detection equipment with adjustable detection size, which comprises a wheeled robot, a transmission line connected to the tail of the wheeled robot, two groups of connecting rods symmetrically arranged on the side wall of the wheeled robot, a rotating plate rotatably arranged on the connecting rod, a lower positioning disc fixed to the end of the connecting rod, a lower positioning hole formed in the side surface of the lower positioning disc and the rotating plate, a lower positioning bolt threadedly connected in the lower positioning hole, a rotating shaft rotatably arranged on the upper part of the side surface of the rotating plate, an upper positioning disc fixed to the end of the rotating shaft, an upper positioning hole formed in the side surface of the upper positioning disc and the side surface of the rotating plate, an upper positioning bolt threadedly connected in the upper positioning hole, an installation frame fixed to the end of the rotating shaft, and a camera installed on the installation frame.

[0004] At present, there are still some human detection in pipeline detection operation, but for the relatively small pipe diameter, human cannot enter the pipeline for inspection, and in most existing detection operations, the robot enters the pipeline to detect the inside of the pipeline and feeds back in real time through the screen, but the robot cannot adapt to the inner diameter of the pipeline and cannot be combined with the inner wall of the pipeline, which leads to unstable movement of the robot in the pipeline, and then leads to the blur of the pictures or videos transmitted to the detection personnel, which easily affects the judgment of the detection personnel on whether there is defect in the pipeline.

[0005] For the problems in the related art, there is no effective solution at present. UTILITY MODEL CONTENT

[0006] In view of the problems in the related art, the utility model provides a positioning device for pipeline internal detection to overcome the above technical problems existing in the prior art.

[0007] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0008] The utility model is a positioning device for pipeline internal detection, which comprises a reinforcing frame.

[0009] Six supporting rods are rotationally connected to the surface of the reinforcing frame, a sliding groove is formed in the inner side of each supporting rod, a second driving source is connected to the surface of each supporting rod, a first driving source is connected to the inner side of the reinforcing frame, a camera is connected to the top end and the bottom end of the reinforcing frame, a driving assembly is arranged on the reinforcing frame, and a positioning assembly is arranged on the surface of each supporting rod.

[0010] The surface of the driving assembly is power-connected with the power output end of the first driving source, so as to drive the driving assembly to make a reverse rotation motion.

[0011] The surface of each positioning assembly is power-connected with the power output end of each second driving source, so as to position the inside of the pipeline.

[0012] Further, the driving assembly comprises a first screw rod, a second screw rod and six hinged seats, the first screw rod is arranged on the power output end of one end of the first driving source, the second screw rod is arranged on the power output end of the other end of the first driving source, the surface of the first screw rod and the surface of the second screw rod are both threadedly connected with an adjusting plate through a screw nut, one side of each adjusting plate is connected with a connecting plate, the surface of each connecting plate is rotationally connected with three connecting rods, six hinged seats are respectively hinged with the inner sides of six connecting rods, and the surface of each hinged seat is connected with a sliding block.

[0013] Further, the thread directions of the first screw rod and the second screw rod are opposite, the first screw rod and the second screw rod respectively penetrate the middle portions of the corresponding connecting plates, and one end of the first screw rod and one end of the second screw rod are both rotationally connected with the surface of the reinforcing frame through bearings.

[0014] Further, the inner sides of the two connecting plates are slidingly connected with the surface of the reinforcing frame.

[0015] Further, six sliding blocks are all arranged in a "T" shape, and the surface of each sliding block is slidingly connected with the inner side of each sliding groove.

[0016] Further, six positioning assemblies all comprise a main bevel gear, a secondary bevel gear and a moving wheel, six main bevel gears are respectively arranged on the power output ends of six second driving sources, six secondary bevel gears are in meshing connection with six main bevel gears, one side of each secondary bevel gear is connected with a rotating rod, and each moving wheel is connected with the surface of each rotating rod.

[0017] Further, one end of each rotating rod is rotationally connected with the surface of each supporting rod.

[0018] The utility model has the following beneficial effects:

[0019] 1、Through the first screw rod and the second screw rod with opposite thread direction, the corresponding adjusting plate and the connecting plate are driven to move respectively, the connecting rod is driven to move by the hinge effect of the hinge seat, the moving wheel is stretched to adapt to the pipe diameter and the inner wall of the pipeline, the pipelines with different diameters are detected conveniently, the sliding block is slid in the sliding groove to adapt to the inclination of the connecting rod, and the stability of the subsequent moving wheel and the inner wall of the pipeline is improved, and the shaking condition is avoided;

[0020] 2、Through the second driving source, the main bevel gear is driven to rotate to drive the rotating rod engaged with the main bevel gear to rotate synchronously, the moving wheel is controlled to move forward or backward in the pipeline, the pipeline is detected for cracks or defects by the camera in the pipeline, and the moving wheel can be driven to stop in time to position the defects in the pipeline, the defects can be fed back to the detection personnel in time, and timely maintenance is facilitated.

[0021] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. 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.

[0023] Figure 1 The structural schematic diagram of the present application;

[0024] Figure 2 The structural schematic diagram of the present application Figure 1 The enlarged structural schematic diagram of A of the present application;

[0025] Figure 3 The sectional structural schematic diagram of the present application;

[0026] Figure 4 The enlarged structural schematic diagram of B of the present application Figure 3 The local structural schematic diagram of the present application;

[0027] Figure 5 The local structural schematic diagram of the present application;

[0028] Figure 6 The side structural schematic diagram of the present application.

[0029] In the drawings, the component list represented by each number is as follows:

[0030] 1, reinforcement frame; 2, drive assembly; 21, first screw rod; 22, second screw rod; 23, adjusting plate; 24, connecting plate; 25, connecting rod; 26, hinged seat; 27, sliding block; 3, support rod; 4, first drive source; 5, camera; 6, positioning assembly; 61, main bevel gear; 62, auxiliary bevel gear; 63, rotating rod; 64, moving wheel; 7, sliding groove; 8, second drive source. DETAILED DESCRIPTION

[0031] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0033] Please refer to Figures 1-6 The utility model discloses a kind of positioning devices for pipeline internal detection, including reinforcement frame 1:

[0034] The surface of the reinforcement frame 1 is rotatably connected with six support rods 3, the inner side of each support rod 3 is provided with a sliding groove 7, and the surface of each support rod 3 is connected with a second drive source 8. The inner side of the reinforcement frame 1 is connected with a first drive source 4. The top and bottom ends of the reinforcement frame 1 are connected with a camera 5. The reinforcement frame 1 is provided with a drive assembly 2. The surface of each of the six support rods 3 is provided with a positioning assembly 6.

[0035] The surface of the drive assembly 2 is power-connected with the power output end of the first drive source 4, so as to drive the drive assembly 2 to rotate in opposite directions.

[0036] The surface of each positioning assembly 6 is power-connected with the power output end of each second drive source 8, so as to position the inside of the pipeline.

[0037] Firstly, the reinforcing frame 1 is moved to the vicinity of the pipeline to be detected, and then the reinforcing frame 1 is placed at the edge of the inside of the pipeline, and then the driving assembly 2 is driven by the first driving source 4 to operate according to the pipe diameter of the pipeline, and the positioning assembly 6 is driven by the driving assembly 2 to correspondingly and uniformly expand, so that the driving assembly 2 drives the positioning assembly 6 to expand in the inside of the pipeline, and at this time, the positioning assembly 6 is uniformly attached to the inner wall of the pipeline, thereby improving the stability during the detection of the inside of the pipeline, and then the positioning assembly 6 is driven by the second driving source 8 to operate to drive the reinforcing frame 1 to move in the inside of the pipeline, the inside of the pipeline is recorded by the camera 5 and is fed back to the detection personnel in real time, so as to achieve the effect of detecting the inside of the pipeline, and the second driving source 8 can control the forward and backward movement and stop of the positioning assembly 6, so that if a problem is found in the inside of the pipeline, the movement can be stopped in time, so that the crack or defect in the inside of the pipeline is positioned, and the operation is simple and convenient.

[0038] The driving assembly 2 facilitates the driving of the positioning assembly 6 to expand to adapt to the pipe diameter of the pipeline and the inner wall of the pipeline to be contacted, which helps to improve the stability during detection, and the second driving source 8 facilitates the driving of the positioning assembly 6 to move forward or backward in the pipeline, which facilitates the movement of the positioning assembly 6 in the inside of the pipeline to cooperate with the camera 5 to detect the crack or defect of the pipeline, and the positioning assembly 6 can be stopped in time to position the defect in the inside of the pipeline, which is beneficial to timely feedback of the defect to the detection personnel and helps to timely repair.

[0039] In one embodiment, for the above-mentioned driving assembly 2, the driving assembly 2 comprises a first lead screw 21, a second lead screw 22 and six articulated seats 26, the first lead screw 21 is arranged on the power output end of one end of the first driving source 4, the second lead screw 22 is arranged on the power output end of the other end of the first driving source 4, the surface of the first lead screw 21 and the surface of the second lead screw 22 are both connected with an adjusting plate 23 through a lead screw nut thread, one side of each of the two adjusting plates 23 is connected with a connecting plate 24, the surface of each connecting plate 24 is rotatably connected with three connecting rods 25, six articulated seats 26 are respectively articulated with the inner sides of six connecting rods 25, and the surface of each articulated seat 26 is connected with a sliding block 27.

[0040] Firstly, the reinforcing frame 1 is moved to the vicinity of the pipeline to be detected, and then the reinforcing frame 1 is placed at the edge of the inside of the pipeline, and then the first lead screw 21 and the second lead screw 22 in the opposite screw direction are driven by the first driving source 4, at this time, the two adjusting plates 23 and the connecting plates 24 are driven to move oppositely, assuming that the pipe diameter is large, then the two adjusting plates 23 and the connecting plates 24 are separated by the first lead screw 21 and the second lead screw 22 respectively, then the hinge seat 26 which plays a hinged role drives the connecting rod 25 to tilt accordingly to adapt to the movement of the connecting plate 24, that is, the angle between the six connecting rods 25 and the surface of the corresponding connecting plate 24 gradually increases, and the slider 27 slides in the inside of the sliding groove 7 to provide support force and movement space for the inclination of the connecting rod 25, then each positioning assembly 6 gradually expands at this time, so as to contact with the inner wall of the pipeline, after the contact is stable, the first driving source 4 is turned off, then the positioning assembly 6 is driven to operate by the second driving source 8 to drive the reinforcing frame 1 to move inside the pipeline, the inside of the pipeline is recorded by the camera 5 and real-time feedback is given to the detection personnel, so as to achieve the effect of detecting the inside of the pipeline, and the forward and backward movement and stop of the positioning assembly 6 can be controlled by the second driving source 8, so if a problem is found in the inside of the pipeline, the movement can be stopped in time, so as to position the crack or defect in the inside of the pipeline, which is simple and convenient to operate.

[0041] The first lead screw 21 and the second lead screw 22 in the opposite screw direction are convenient for driving the corresponding adjusting plate 23 and the connecting plate 24 to move horizontally, and the hinge seat 26 is convenient for driving the connecting rod 25 to drive the positioning assembly 6 to expand so as to adapt to the pipe diameter and contact with the inner wall of the pipeline, which helps to prevent the reinforcing frame 1 from shaking, thereby improving the stability during detection, and the second driving source 8 is convenient for driving the positioning assembly 6 to move forward or backward in the pipeline, which is convenient for walking in the pipeline to cooperate with the camera 5 to detect the crack or defect of the pipeline, and the positioning assembly 6 can be stopped in time to position the defect in the inside of the pipeline, which is beneficial to feedback the defect to the detection personnel in time, and helps to repair in time.

[0042] In one embodiment, for the first lead screw 21, the screw direction of the first lead screw 21 and the second lead screw 22 is opposite, the first lead screw 21 and the second lead screw 22 penetrate the middle part of the corresponding connecting plate 24 respectively, and one end of the first lead screw 21 and one end of the second lead screw 22 are rotatably connected to the surface of the reinforcing frame 1 through bearings, thereby improving the stability of the first lead screw 21 and the second lead screw 22 during rotation.

[0043] In one embodiment, for the above-mentioned connecting plate 24, the inner sides of the two connecting plates 24 are in sliding connection with the surface of the reinforcing frame 1, so as to facilitate the provision of translational support force for the connecting plate 24 and avoid the shaking of the connecting plate 24.

[0044] In one embodiment, for the above-mentioned sliding block 27, the six sliding blocks 27 are in the shape of “T”, and the surface of each sliding block 27 is in sliding connection with the inner side of each sliding groove 7, so as to facilitate the engagement with the interior of the sliding groove 7 and not to affect the sliding of the sliding block 27 in the interior of the sliding groove 7.

[0045] In one embodiment, for the above-mentioned positioning assembly 6, the six positioning assemblies 6 each include a main bevel gear 61, a secondary bevel gear 62, and a moving wheel 64, the six main bevel gears 61 are respectively arranged on the power output end of the six second driving sources 8, the six secondary bevel gears 62 are in meshing connection with the six main bevel gears 61, one side of each secondary bevel gear 62 is connected with a rotating rod 63, and each moving wheel 64 is connected with the surface of each rotating rod 63, so as to facilitate the stable movement of the reinforcing frame 1 in the interior of the pipeline by driving the moving wheel 64 to rotate, and facilitate the detection and positioning of the interior of the pipeline by the camera 5.

[0046] In one embodiment, for the above-mentioned rotating rod 63, one end of each rotating rod 63 is in rotational connection with the surface of each supporting rod 3, so as to facilitate the stability of the rotating rod 63 in driving the moving wheel 64 to rotate.

[0047] According to the technical scheme of the utility model, first, the reinforcing frame 1 is moved to the vicinity of the pipeline to be detected, then the reinforcing frame 1 is placed in the inner edge of the pipeline, then the first screw rod 21 and the second screw rod 22 rotating in opposite directions are driven by the first driving source 4, at this time, the two adjusting plates 23 and the connecting plates 24 are moved oppositely, assuming that the diameter of the pipeline is large, then the two adjusting plates 23 and the connecting plates 24 are separated by the first screw rod 21 and the second screw rod 22, then the hinged seat 26 plays a hinged role to drive the connecting rod 25 to tilt accordingly to adapt to the movement of the connecting plate 24, that is, the angle between the six connecting rods 25 and the corresponding connecting plate 24 surface gradually increases, and the sliding block 27 slides in the sliding groove 7 to provide support force and movement space for the inclination of the connecting rod 25, then at this time, each moving wheel 64 will gradually stretch out to contact the inner wall of the pipeline, which helps to improve the stability during subsequent detection, after the moving wheel 64 is in stable contact with the inner wall of the pipeline, the first driving source 4 is turned off, the six main bevel gears 61 are driven to rotate by the six second driving sources 8 respectively, each sub bevel gear 62 is driven to rotate by each main bevel gear 61, thereby driving the rotating rod 63 and the moving wheel 64 to rotate, the reinforcing frame 1 is driven to move in the pipeline by the moving wheel 64, the situation inside the pipeline is recorded by the camera 5 and fed back to the detection personnel in real time, so that the pipeline inside is detected, and the advancing, retreating and stopping of the moving wheel 64 can be controlled by the second driving source 8, therefore, if a problem is found in the pipeline, the movement can be stopped in time, so that the crack or defect in the pipeline is located, and the operation is simple.

[0048] Through the above technical scheme, 1, the first screw rod 21 and the second screw rod 22 rotating in opposite directions are used to drive the corresponding adjusting plate 23 and the connecting plate 24 to move horizontally, the connecting rod 25 is driven to stretch out by the hinged seat 26 to adapt to the diameter of the pipeline and contact the inner wall of the pipeline, which is convenient for detecting pipelines with different diameters, the sliding block 27 slides in the sliding groove 7 to adapt to the inclination of the connecting rod 25 and improve the stability of the subsequent contact between the moving wheel 64 and the inner wall of the pipeline, avoiding shaking; 2, the main bevel gear 61 is driven to rotate by the second driving source 8, thereby driving the rotating rod 63 to rotate synchronously, the moving wheel 64 is controlled to move forward or backward in the pipeline, the crack or defect of the pipeline is detected by the camera 5, and the moving wheel 64 can be stopped in time to locate the defect in the pipeline, which is convenient for timely feedback to the detection personnel and timely maintenance.

[0049] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all of the details of the application, nor limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of the application and its practical application, thus enabling others skilled in the art to best utilize the application. The application is defined solely by the claims appended hereto and equivalents thereof, regardless and notwithstanding any limitations introduced by the description.

Claims

1. A positioning device for pipeline inspection, comprising a reinforcing frame (1), characterized in that: the surface of the reinforcing frame (1) is rotatably connected with six support rods (3), the inner side of each support rod (3) is provided with a sliding groove (7), the surface of each support rod (3) is connected with a second driving source (8), the inner side of the reinforcing frame (1) is connected with a first driving source (4), the top and bottom ends of the reinforcing frame (1) are connected with cameras (5), the reinforcing frame (1) is provided with a driving assembly (2), and the surfaces of the six support rods (3) are provided with positioning assemblies (6). The surface of the driving assembly (2) is power-connected with the power output end of the first driving source (4) to drive the driving assembly (2) to make reverse rotary motion. The surface of each positioning assembly (6) is power-connected with the power output end of each second driving source (8) to position the inside of the pipeline. The driving assembly (2) comprises a first lead screw (21), a second lead screw (22) and six hinged seats (26), the first lead screw (21) is arranged on the power output end of one end of the first driving source (4), the second lead screw (22) is arranged on the power output end of the other end of the first driving source (4), the surface of the first lead screw (21) and the surface of the second lead screw (22) are both threadedly connected with an adjusting plate (23), one side of each adjusting plate (23) is connected with a connecting plate (24), the surface of each connecting plate (24) is rotatably connected with three connecting rods (25), six hinged seats (26) are respectively hinged with the inner sides of six connecting rods (25), and the surface of each hinged seat (26) is connected with a sliding block (27).

2. A positioning device for use in pipeline inspection according to claim 1, characterized in that The thread directions of the first lead screw (21) and the second lead screw (22) are opposite, the first lead screw (21) and the second lead screw (22) respectively penetrate the middle portions of the corresponding connecting plates (24), and one end of the first lead screw (21) and one end of the second lead screw (22) are rotatably connected with the surface of the reinforcing frame (1) through bearings.

3. A positioning device for use in pipeline inspection according to claim 2, wherein, The inner sides of the two connecting plates (24) are slidably connected with the surface of the reinforcing frame (1).

4. A positioning device for use in pipeline inspection according to claim 2, wherein, Six sliding blocks (27) are all arranged in a "T" shape, and the surface of each sliding block (27) is slidably connected with the inner side of each sliding groove (7).

5. A positioning device for use in pipeline inspection according to claim 2, wherein, Six positioning assemblies (6) each comprise a main bevel gear (61), a secondary bevel gear (62) and a moving wheel (64), six main bevel gears (61) are respectively arranged on the power output ends of six second driving sources (8), six secondary bevel gears (62) are meshedly connected with six main bevel gears (61), one side of each secondary bevel gear (62) is connected with a rotating rod (63), and each moving wheel (64) is connected with the surface of each rotating rod (63).

6. A positioning device for use in pipeline inspection according to claim 1, wherein, One end of each rotating rod (63) is rotatably connected with the surface of each support rod (3).

7. A positioning device for use in pipeline inspection according to claim 6, wherein, ​

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