Tubular object internal defect detection device

Abstract

The utility model relates to the field of pipeline detection, and discloses a tubular object internal defect detection device which comprises a triangular mounting plate, a plurality of first hinge seats are fixedly mounted on the side of the triangular mounting plate, and auxiliary supporting rods are hinged to the interiors of the first hinge seats. A second hinge seat is fixedly installed at the end, away from the first hinge seat, of the auxiliary supporting rod, auxiliary moving wheels are hinged to the interior of the second hinge seat, a pipeline defect detection mechanism is arranged on the right side of the triangular mounting plate, and an adjusting supporting mechanism connected with the auxiliary supporting rod is arranged on the left side of the triangular mounting plate. The three auxiliary supporting rods of the device can be driven by the adjusting supporting mechanism to be rapidly unfolded and stored, the device can adapt to pipelines with different diameters, convenience is improved, meanwhile, starting of one of the three auxiliary moving wheels can be changed into a driving wheel through a second driving motor, a first bevel gear and a second bevel gear, the device is convenient to move, and the device is convenient to use. Therefore, pipeline defect detection is facilitated.

Description

Technical Field

[0001] This application belongs to the field of pipeline inspection technology, specifically a device for detecting internal defects in tubular objects. Background Technology

[0002] Tubular objects may contain various defects, such as corrosion (including uniform corrosion, pitting corrosion, and crevice corrosion), cracks (longitudinal, transverse, and circumferential), pits, bulges, deformation, scale, deposits, and other foreign matter. These defects originate from manufacturing defects, material aging, corrosion and wear, or external impacts. In severe cases, they can endanger the safety and service life of pipelines, and even cause leaks or ruptures. To ensure safety, various sensors and instruments are usually used, such as ultrasonic, magnetic particle testing, endoscopy, eddy current testing, or radiography, to detect these internal defects by transmitting and receiving signals, thereby achieving an effective assessment of the pipeline's condition.

[0003] For example, utility model patent CN219828162U discloses a pipe internal defect detector, including a detection box. Three evenly distributed telescopic rods are fixed on the peripheral end face of the detection box. Each telescopic rod is connected to a connecting plate at the end away from the detection box. Each connecting plate is connected to an electric wheel assembly at the end away from the telescopic rod. The detection box and the four connecting plates are respectively hinged to guide rods and telescopic rods at their close ends. Sliding sleeves are connected between two adjacent guide rods and telescopic rods. By controlling the movement of the connecting plates, the electric wheel assembly can always be in contact with the inner wall of the pipe, so that the detection box can move in pipes of different diameters or pipes with varying diameters.

[0004] However, in actual use, it was found that the device uses multiple telescopic rods to adjust the contact between the connecting plate and the electric wheel and the inner wall of the pipe to adapt to pipes of different diameters and facilitate subsequent testing.

[0005] However, the length of the telescopic rod itself takes up space, and multiple telescopic rods need to be adjusted simultaneously to ensure that the connecting plate and electric wheel fit against the inner wall. This makes it inconvenient to operate in narrow pipes and the adjustment process is also relatively complicated. Therefore, a device for detecting internal defects of tubular objects is provided. Utility Model Content

[0006] The purpose of this application is to provide a device for detecting internal defects in tubular objects in order to solve the problems mentioned above.

[0007] The technical solution adopted in this application is as follows: A device for detecting internal defects of a tubular object includes a triangular mounting plate. Multiple hinge seats are fixedly installed on the side of the triangular mounting plate, and an auxiliary support rod is hinged inside each of the multiple hinge seats. A second hinge seat is fixedly installed at the end of the auxiliary support rod away from the first hinge seat. An auxiliary moving wheel is hinged inside the second hinge seat. A pipe defect detection mechanism is provided on the right side of the triangular mounting plate, and an adjustment support mechanism connected to the auxiliary support rod is provided on the left side of the triangular mounting plate.

[0008] The adjustment support mechanism includes a drive motor, an adjustment screw, a threaded slider, and an adjustment support rod. The drive motor is fixedly installed on the right side of the triangular mounting plate. The drive end of the drive motor passes through one side of the triangular mounting plate. The adjustment screw is fixedly installed on the drive end of the drive motor. The threaded slider is threadedly connected to the outer surface of the adjustment screw. The adjustment support rod is hinged to the top surface of the threaded slider. The end of the adjustment support rod away from the threaded slider is hinged to one side of the auxiliary support rod. A limiting mechanism connected to the threaded slider is provided on the left side of the triangular mounting plate.

[0009] In a preferred embodiment, a motor bracket is fixedly installed on one side of one of the plurality of auxiliary support rods, a second drive motor is fixedly installed on the bottom surface of the motor bracket, a connecting shaft is fixedly installed on the drive end of the second drive motor, a first helical gear is fixedly installed on the top end of the connecting shaft, a rotating shaft is rotatably connected to one side of one of the plurality of hinge seats, a second helical gear corresponding to the first helical gear is fixedly installed at one end of the rotating shaft, the second helical gear meshes with the first helical gear, and the end of the rotating shaft away from the second helical gear is fixed to the side of the auxiliary moving wheel.

[0010] In a preferred embodiment, the pipeline defect detection mechanism includes a mounting housing and detection units. The mounting housing is fixedly mounted on the right side of the triangular mounting plate by bolts, and multiple detection units are fixedly mounted on the side of the mounting housing.

[0011] In a preferred embodiment, the limiting mechanism includes a limiting rod and a circular through hole. Multiple limiting rods are fixedly installed on the left side of the triangular mounting plate, and multiple circular through holes corresponding to the limiting rods are opened on one side of the threaded slider. One end of the limiting rod passes through the interior of the circular through hole.

[0012] In a preferred embodiment, a tubular endoscope is fixedly mounted on the front side of the mounting housing.

[0013] In a preferred embodiment, a limiting plate is fixedly installed on the outer surface of the end of the limiting rod away from the triangular mounting plate, and a bearing is fixedly installed on one side of the limiting plate near the middle, and one end of the adjusting screw is fixedly installed in the middle of the bearing.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, due to the adoption of the above-mentioned scheme, the three auxiliary support rods and auxiliary moving wheels of the device can be quickly deployed and retracted under the drive of the adjustment support mechanism, which can adapt to pipes of different diameters and improve convenience. At the same time, through the drive motor 2, helical gear 1 and helical gear 2, one of the three auxiliary moving wheels can be turned into a drive wheel, which facilitates the movement of the device and makes it easier for the pipe defect detection mechanism to detect the internal condition of the pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the mounting housing structure of this application;

[0018] Figure 3 This is a schematic diagram of the threaded slider structure of this application.

[0019] The markings in the diagram are: 1. Triangular mounting plate; 2. Hinge seat one; 3. Auxiliary support rod; 4. Hinge seat two; 5. Auxiliary moving wheel; 6. Pipeline defect detection mechanism; 601. Mounting housing; 602. Detection unit; 7. Adjustment support mechanism; 701. Drive motor one; 702. Adjusting screw; 703. Threaded slider; 704. Adjusting support rod; 8. Limiting mechanism; 801. Limiting rod; 802. Circular through hole; 9. Motor bracket; 10. Drive motor two; 11. Connecting shaft; 12. Helical gear one; 13. Rotating shaft; 14. Helical gear two; 15. Pipeline endoscope; 16. Limiting plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] refer to Figure 1 , Figure 2 and Figure 3A device for detecting internal defects in a tubular object includes a triangular mounting plate 1. Multiple hinge seats 2 are fixedly mounted on the sides of the triangular mounting plate 1, and each hinge seat 2 has an auxiliary support rod 3 hinged inside. A second hinge seat 4 is fixedly mounted at the end of the auxiliary support rod 3 away from the first hinge seat 2, and an auxiliary moving wheel 5 is hinged inside the second hinge seat 4. Three hinge seats 2 are installed in total, and each of the three hinge seats 2 has an auxiliary support rod 3 hinged inside. The hinge seats 12 facilitate the rotation of the auxiliary support rod 3 within them, thus allowing adjustment of the tilt angle of the auxiliary support rod 3. The second hinge seats 24 facilitate the rotation of the auxiliary moving wheel 5 within them, thus facilitating contact between the auxiliary moving wheel 5 and the inner wall of the pipe, facilitating the movement of the subsequent detection mechanism, and enabling the detection operation inside the pipe.

[0022] refer to Figure 1 , Figure 2 and Figure 3 A pipeline defect detection mechanism 6 is provided on the right side of the triangular mounting plate 1. The pipeline defect detection mechanism 6 includes a mounting housing 601 and detection units 602. The mounting housing 601 is fixedly installed on the right side of the triangular mounting plate 1 by bolts. A pipeline endoscope 15 is fixedly installed on the front side of the mounting housing 601, and multiple detection units 602 are fixedly installed on the sides of the mounting housing 601. The mounting housing 601 is installed by multiple bolts, which greatly improves the convenience of installation and disassembly. The detection units 602 can be easily installed through the mounting housing 601, thereby realizing the detection of the inner wall of the pipeline. The detection units 602 consist of multiple... The sensor, including ultrasonic sensors, eddy current sensors, and permeation sensors, consists of a rectangular housing and control components inside. These components can be PLC controllers or control circuit boards, facilitating electrical connection between the sensor and the control components. This allows the sensor to transmit detection information back to an external terminal. Additionally, the included pipe endoscope 15 allows for further inspection of the pipe's interior, displaying and transmitting the internal conditions to the outside for easy observation and recording. It should be noted that the pipe endoscope 15 and various sensors are existing devices; this application only uses their functions without modifying their structure, and therefore will not elaborate further.

[0023] refer to Figure 1 , Figure 2 and Figure 3The left side of the triangular mounting plate 1 is provided with an adjustment support mechanism 7 connected to the auxiliary support rod 3. The adjustment support mechanism 7 includes a drive motor 701, an adjustment screw 702, a threaded slider 703, and an adjustment support rod 704. The right side of the triangular mounting plate 1 is fixedly installed with the drive motor 701. The drive end of the drive motor 701 passes through one side of the triangular mounting plate 1. The adjustment screw 702 is fixedly installed on the drive end of the drive motor 701. The threaded slider 703 is threadedly connected to the outer surface of the adjustment screw 702. The drive motor 701 facilitates the rotation of the adjustment screw 702, which in turn facilitates the forward and backward movement of the threaded slider 703.

[0024] refer to Figure 1 , Figure 2 An adjusting support rod 704 is hinged to the top surface of the threaded slider 703. The end of the adjusting support rod 704 away from the threaded slider 703 is hinged to one side of the auxiliary support rod 3. A limiting mechanism 8 connected to the threaded slider 703 is provided on the left side of the triangular mounting plate 1. When the threaded slider 703 moves back and forth, the adjusting support rod 704 can push the auxiliary support rod 3 outward or retract it inward, which is convenient for adapting to pipes of different diameters and improving the convenience of pipe defect detection.

[0025] refer to Figure 1 , Figure 3 The limiting mechanism 8 includes a limiting rod 801 and a circular through hole 802. Multiple limiting rods 801 are fixedly installed on the left side of the triangular mounting plate 1. Multiple circular through holes 802 corresponding to the limiting rods 801 are opened on one side of the threaded slider 703. One end of the limiting rod 801 passes through the interior of the circular through hole 802. By having one end of the limiting rod 801 pass through the interior of the circular through hole 802, the threaded slider 703 is easily limited, so that the threaded slider 703 will not rotate on its own when it is driven by the adjusting screw 702.

[0026] refer to Figure 1 , Figure 3 A limiting plate 16 is fixedly installed on the outer surface of the end of the limiting rod 801 away from the triangular mounting plate 1. A bearing is fixedly installed on one side of the limiting plate 16 near the middle. One end of the adjusting screw 702 is fixedly installed in the middle of the bearing. The stability of the adjusting screw 702 can be further improved by setting the limiting plate 16.

[0027] refer to Figure 1 , Figure 2 and Figure 3A motor bracket 9 is fixedly installed on one side of one of the multiple auxiliary support rods 3. A second drive motor 10 is fixedly installed on the bottom surface of the motor bracket 9. A connecting shaft 11 is fixedly installed on the drive end of the second drive motor 10. A helical gear 12 is fixedly installed on the top end of the connecting shaft 11. The motor bracket 9 facilitates the installation of the second drive motor 10, which in turn facilitates the second drive motor 10 to drive the connecting shaft 11 and the helical gear 12 to rotate.

[0028] refer to Figure 1 , Figure 2 and Figure 3 One side of one of the multiple hinge seats 4 is rotatably connected to a rotating shaft 13. One end of the rotating shaft 13 is fixedly mounted with a helical gear 14 corresponding to the helical gear 12. The helical gear 14 meshes with the helical gear 12. The end of the rotating shaft 13 away from the helical gear 14 is fixed to one side of the auxiliary moving wheel 5. The rotating shaft 13 is mounted and rotated through a bearing. When the helical gear 1 rotates, it can drive the helical gear 14 and the rotating shaft 13 to rotate. This makes it easy for one of the three auxiliary moving wheels 5 to become a driving wheel, which facilitates the driving device to move back and forth in the pipeline, so that the pipeline defect detection mechanism 6 can detect the inside of the pipeline.

[0029] The implementation principle of the tube-shaped object internal defect detection device of this application is as follows: The user first places the device inside the pipe to be detected, so that the triangular mounting plate 1 is in a position close to the center of the pipe. Then, the drive motor 701 in the adjustment support mechanism 7 is started. The drive motor 701 drives the adjustment screw 702 to rotate. Under the action of the limit mechanism 8, the threaded slider 703 moves towards the triangular mounting plate 1. Then the adjustment support rod 704 lifts the auxiliary support rod 3 to a certain tilt angle, so that the auxiliary moving wheel 5 contacts the inner wall of the pipe.

[0030] When the auxiliary moving wheel 5 contacts the inner wall of the pipe, the auxiliary support rod 3 will maintain a certain pressure on it, so that the device is stably installed inside the pipe. At this time, the personnel start the second drive motor 10. The second drive motor 10 drives the first helical gear 12 to rotate. Since the first helical gear 12 is meshed with the second helical gear 14, the rotation of the first helical gear 12 will drive the second helical gear 14, the rotating shaft 13 and the auxiliary moving wheel 5 to rotate, so that one of the three auxiliary moving wheels 5 becomes the main drive wheel, enabling the device to move inside the pipe, which facilitates the pipe defect detection mechanism 6 to detect defects inside the pipe. The detection data is transmitted to the external terminal through the wire, which is convenient for personnel to observe and record, and provides a basis for subsequent analysis and processing.

[0031] The device's three auxiliary support rods 3 and auxiliary moving wheels 5 can be quickly deployed and retracted under the drive of the adjusting support mechanism 7, adapting to pipes of different diameters and improving convenience. At the same time, through the drive motor 10, helical gear 12 and helical gear 14, one of the three auxiliary moving wheels 5 can be activated to become a drive wheel, facilitating the movement of the device and enabling the pipe defect detection mechanism 6 to better detect the internal condition of the pipe.

[0032] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for detecting internal defects in a tubular object, comprising a triangular mounting plate (1), characterized in that: Multiple hinge seats (2) are fixedly installed on the side of the triangular mounting plate (1), and an auxiliary support rod (3) is hinged inside each of the multiple hinge seats (2). A hinge seat (4) is fixedly installed at the end of the auxiliary support rod (3) away from the hinge seat (2). An auxiliary moving wheel (5) is hinged inside the hinge seat (4). A pipeline defect detection mechanism (6) is provided on the right side of the triangular mounting plate (1), and an adjustment support mechanism (7) connected to the auxiliary support rod (3) is provided on the left side of the triangular mounting plate (1). The adjustment support mechanism (7) includes a drive motor (701), an adjustment screw (702), a threaded slider (703), and an adjustment rod (704). The drive motor (701) is fixedly installed on the right side of the triangular mounting plate (1). The drive end of the drive motor (701) passes through one side of the triangular mounting plate (1). The drive end of the drive motor (701) is fixedly installed with the adjustment screw (702). The outer surface of the adjustment screw (702) is threadedly connected to the threaded slider (703). The top surface of the threaded slider (703) is hinged to the adjustment rod (704). The end of the adjustment rod (704) away from the threaded slider (703) is hinged to one side of the auxiliary support rod (3). The left side of the triangular mounting plate (1) is provided with a limiting mechanism (8) connected to the threaded slider (703).

2. The device for detecting internal defects in a tubular object as described in claim 1, characterized in that: A motor bracket (9) is fixedly installed on one side of one of the multiple auxiliary support rods (3). A second drive motor (10) is fixedly installed on the bottom surface of the motor bracket (9). A connecting shaft (11) is fixedly installed on the drive end of the second drive motor (10). A first helical gear (12) is fixedly installed on the top end of the connecting shaft (11). A rotating shaft (13) is rotatably connected to one side of one of the multiple hinge seats (4). A second helical gear (14) corresponding to the first helical gear (12) is fixedly installed at one end of the rotating shaft (13). The second helical gear (14) meshes with the first helical gear (12). The end of the rotating shaft (13) away from the second helical gear (14) is fixed to one side of the auxiliary moving wheel (5).

3. The device for detecting internal defects in a tubular object as described in claim 1, characterized in that: The pipeline defect detection mechanism (6) includes a mounting housing (601) and a detection unit (602). The mounting housing (601) is fixedly installed on the right side of the triangular mounting plate (1) by bolts. Multiple detection units (602) are fixedly installed on the side of the mounting housing (601).

4. The device for detecting internal defects in a tubular object as described in claim 1, characterized in that: The limiting mechanism (8) includes a limiting rod (801) and a circular through hole (802). Multiple limiting rods (801) are fixedly installed on the left side of the triangular mounting plate (1). Multiple circular through holes (802) corresponding to the limiting rods (801) are opened on one side of the threaded slider (703). One end of the limiting rod (801) passes through the interior of the circular through hole (802).

5. The device for detecting internal defects in a tubular object as described in claim 1, characterized in that: A pipe endoscope (15) is fixedly installed on the front side of the mounting housing (601).

6. The device for detecting internal defects in a tubular object as described in claim 1, characterized in that: A limiting plate (16) is fixedly installed on the outer surface of the end of the limiting rod (801) away from the triangular mounting plate (1). A bearing is fixedly installed on one side of the limiting plate (16) near the middle. One end of the adjusting screw (702) is fixedly installed in the middle of the bearing.

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