Telescopic arm type pipeline detection robot suitable for different pipe diameters

By introducing a combination structure of adjusting arm and limiting ball bearings and servo motor drive into the pipeline inspection robot, the problem of the inspection component deviating from the center of the pipeline was solved, and efficient and accurate pipeline inspection was achieved.

CN223483787UActive Publication Date: 2025-10-28SHANGRAO HUDIAN NETWORK TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422693505.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-10-28
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing pipeline inspection robots cannot guarantee that the inspection components are located in the center of the pipeline, which affects the inspection results.

Method used

The system employs a combination of an adjusting arm and a limiting ball bearing. The elastic band limits the movement of the robot body, ensuring precise positioning at the center of the pipe. A servo motor and an electric push rod enable flexible rotation of the detection probe, eliminating the need for manual adjustment.

Benefits of technology

It achieves precise positioning of the detection component in the center of the pipeline, improves the accuracy and efficiency of detection, simplifies the operation process, and adapts to the detection needs of pipelines with different diameters.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223483787U_ABST
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Abstract

The utility model relates to the field of pipeline detection robots, and discloses a telescopic arm type pipeline detection robot suitable for different pipe diameters, which comprises a detection robot main body, two groups of U-shaped seats are symmetrically distributed on the outer ring of the detection robot main body, four U-shaped seats form one group, adjusting arms are arranged in the inner cavities of the U-shaped seats, and the adjusting arms are arranged on the outer ring of the detection robot main body. According to the telescopic arm type pipeline detection robot suitable for different pipe diameters, according to the size of a pipeline, an adjusting ring is rotated to be matched with an internal thread and an external thread, the adjusting ring is moved to the middle, so that an adjusting arm rotationally connected through an adjusting rotating shaft in a U-shaped base is turned over in the direction away from the detection robot body, and after elastic limiting is conducted through an elastic belt, the pipeline is detected. And the detection mechanism is used for stable detection, so that the problem that an existing pipeline detection robot is difficult to ensure that a detection assembly is located in the center of a pipeline, and consequently the detection result is affected is solved.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection robot technology, specifically a telescopic arm pipeline inspection robot suitable for pipes of different diameters. Background Technology

[0002] Pipeline inspection refers to the comprehensive examination of pipelines using various technologies and tools to detect and assess damage, corrosion, deformation, and other issues, ensuring the safe operation of the pipeline system. The main purpose of pipeline inspection is to prevent and reduce pipeline accidents and ensure the safety and reliability of the pipeline system.

[0003] Patent CN212776263U discloses a telescopic arm pipe inspection robot suitable for pipes of different diameters. It includes an electrically controlled carriage, an adjusting plate, and an adjusting device. The adjusting device is rotatably connected to both sides of the adjusting plate. The adjusting device includes a connecting column and a connecting box. The connecting column is fixed to the bottom of the connecting box, and an adjusting cavity is provided inside the connecting column, communicating with the connecting box. This device, with the help of multiple casters, ensures the stability of the robot. The electrically controlled carriage, push rod, and CCTV inspection components provide power for the robot's movement, enabling it to perform pipe inspection.

[0004] However, this device uses an adjustment disc to adjust the position of the threaded block, and then uses steel ropes, guide wheels, and other structures to adjust the position of the casters. But the casters are limited and guided by elasticity and guide blocks. No matter how the spring is compressed or stretched, there will be a certain deformation after the position is limited. This means that after the inspection robot is adjusted according to the pipe size and placed in the pipe, the electric control vehicle is difficult to keep in the middle position of the pipe due to the deformation of the spring, which can easily affect the inspection results of the CCTV inspection component. To address this, a telescopic arm type pipe inspection robot suitable for different pipe diameters is proposed to solve the problem that existing pipe inspection robots cannot ensure that the inspection component is in the center of the pipe, thus affecting the inspection results. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a telescopic arm pipe inspection robot suitable for pipes of different diameters, thus solving the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a telescopic arm pipe inspection robot suitable for pipes of different diameters, comprising a robot body, two sets of U-shaped seats symmetrically distributed on the outer ring of the robot body, four U-shaped seats forming a group, an adjusting arm provided in the inner cavity of the U-shaped seat, one side of the adjusting arm being rotatably connected to the U-shaped seat via an adjusting shaft, a limiting ball being rolled on the other side of the adjusting arm, the four adjusting arms being connected by an elastic band, adjusting rings provided on both outer rings of the robot body, the outer ring of the robot body being provided with external threads, the inner ring of the adjusting rings being provided with internal threads, a pipe inspection mechanism provided on one side of the robot body, and a telescopic gripping rod provided on the other side of the robot body.

[0009] Preferably, when the elastic band deforms, all four adjusting arms are in contact with the outer ring wall of the main body of the detection robot.

[0010] Preferably, the contact surfaces of the adjusting arm and the adjusting ring are both chamfered, and the outer ring of the main body of the detection robot is symmetrically marked with scales, with the zero mark line of the scale located at the two side boundaries of the main body of the detection robot.

[0011] Preferably, the pipeline inspection mechanism includes an inspection platform rotatably mounted on one side of the inspection robot body, and a servo motor is fixedly connected to the inner wall of one side of the inspection robot body, the servo motor being fixedly connected to the inspection platform.

[0012] Preferably, the top of the detection frustum is provided with an adjustment groove, the inner cavity of the adjustment groove is provided with a detection probe, the bottom of the detection probe is fixedly connected to an electric push rod, and the bottom of the electric push rod is fixedly connected to the bottom of the inner cavity of the adjustment groove.

[0013] Preferably, the outer ring of the detection frustum is provided with two symmetrical lighting lamps, which are located at both ends of the detection probe.

[0014] (III) Beneficial Effects

[0015] 1. This telescopic arm pipe inspection robot, applicable to pipes of different diameters, allows for the rotation of an adjusting ring with internal and external threads, moving the ring towards the center. This causes the adjusting arm, connected to the adjusting shaft within the U-shaped seat, to rotate away from the robot body. After being limited by the elastic band, the limiting ball precisely positions the robot body against the pipe wall. This stable inspection mechanism solves the problem of existing pipe inspection robots failing to ensure the inspection components are centered on the pipe, thus affecting the inspection results.

[0016] 2. This telescopic arm pipe inspection robot is suitable for pipes of different diameters. After the main body of the inspection robot moves out of the pipe, the electric push rod in the adjustment groove drives the inspection probe to approach the pipe wall according to the pipe size. Then, the servo motor drives the inspection platform to rotate, which in turn drives the inspection probe to rotate. There is no need to use the telescopic handle to drive the main body of the inspection robot to rotate, so that the inner wall of the pipe can be fully inspected, saving time and effort and improving the practicality of this inspection robot. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present utility model;

[0018] Figure 2 This is a right view of the structure of this utility model;

[0019] Figure 3 The structure of this utility model Figure 2 Sectional view at point AA;

[0020] Figure 4 This is the main view of the structure of this utility model.

[0021] In the diagram: 1. Main body of the inspection robot; 2. U-shaped seat; 3. Adjusting arm; 4. Adjusting shaft; 5. Limiting ball; 6. Elastic band; 7. Adjusting ring; 8. External thread; 9. Internal thread; 10. Pipe inspection mechanism; 101. Inspection frustum; 102. Servo motor; 103. Adjusting groove; 104. Inspection probe; 105. Electric push rod; 11. Telescopic grip; 12. Lighting lamp. Detailed Implementation

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Please refer to Figure 1-4A telescopic arm pipe inspection robot suitable for pipes of different diameters includes a robot body 1. Two sets of U-shaped seats 2 are symmetrically distributed on the outer ring of the robot body 1, with four U-shaped seats 2 forming a group. An adjusting arm 3 is provided in the inner cavity of the U-shaped seat 2. One side of the adjusting arm 3 is rotatably connected to the U-shaped seat 2 by an adjusting shaft 4. The other side of the adjusting arm 3 is provided with a limiting ball 5. The four adjusting arms 3 are connected by an elastic band 6. Adjusting rings 7 are provided on both sides of the outer ring of the robot body 1. The outer ring of the robot body 1 is provided with external threads 8. The inner ring of the adjusting ring 7 is provided with internal threads 9. A pipe inspection mechanism 10 is provided on one side of the robot body 1. A telescopic handle 11 is provided on the other side of the robot body 1.

[0024] Furthermore, when the elastic band 6 deforms, all four adjusting arms 3 are in contact with the outer ring wall of the inspection robot body 1. The inspection robot body 1 can be moved out of the pipe through the telescopic grip 11. After the inspection is completed and it is moved out, the adjusting ring 7 is reset. With the elasticity of the elastic band 6, the adjusting arms 3 that have been flipped out are retracted back into the outer ring of the inspection robot body 1. This greatly reduces the size of this telescopic arm type pipe inspection robot, which is suitable for pipes of different diameters, making it easier to transport and store.

[0025] Furthermore, the contact surfaces of the adjusting arm 3 and the adjusting ring 7 are both chamfered, and the outer ring of the detection robot body 1 is symmetrically marked with scales. The zero mark of the scale is located on both sides of the detection robot body 1. The chamfers ensure that when the adjusting ring 7 moves towards the middle of the detection robot body 1, the adjusting arm 3 can smoothly flip outward. The scale adjustment controls the outer rings 7 on both sides of the detection robot body 1 to rotate and move precisely to the same position, ensuring that the detection robot body 1 can be stably limited inside the pipeline by multiple adjusting arms 3, thus ensuring the accuracy of subsequent pipeline inspection results.

[0026] Furthermore, the pipeline inspection mechanism 10 includes an inspection platform 101 rotatably mounted on one side of the inspection robot body 1, and a servo motor 102 is fixedly connected to the inner wall of one side of the inspection robot body 1. The servo motor 102 is fixedly connected to the inspection platform 101.

[0027] Furthermore, the top of the detection platform 101 is provided with an adjustment groove 103, and a detection probe 104 is provided in the inner cavity of the adjustment groove 103. An electric push rod 105 is fixedly connected to the bottom of the detection probe 104, and the bottom of the electric push rod 105 is fixedly connected to the bottom of the inner cavity of the adjustment groove 103. After the detection robot body 1 moves out of the pipe, according to the size of the pipe, the electric push rod 105 in the adjustment groove 103 drives the detection probe 104 to approach the pipe wall. Then, the servo motor 102 drives the detection platform 101 to rotate, which drives the detection probe 104 to rotate. Without the need to use the retractable grip rod 11 to drive the detection robot body 1 to rotate, the inner wall of the pipe can be fully inspected, saving time and effort and improving the practicality of this detection robot.

[0028] Furthermore, the outer ring of the detection frustum 101 is provided with two symmetrical lighting lamps 12, which are located at both ends of the detection probe 104. The lighting lamps 12 can provide supplementary lighting to the inner wall of the pipe, which facilitates the detection probe 104 to accurately detect the inner wall of the pipe.

[0029] Working Principle: When using this telescopic arm-type pipe inspection robot suitable for different pipe diameters, the adjusting ring 7 is rotated according to the pipe size. Under the action of the internal thread 9 in the adjusting ring 7 and the external thread 8 on the outer ring of the inspection robot body 1, the adjusting ring 7 moves towards the center. This causes the adjusting arm 3, connected to the U-shaped seat 2 by the adjusting shaft 4, to flip away from the inspection robot body 1. After being limited by the elastic band 6, the limiting ball 5 precisely limits the inspection robot body 1 against the pipe wall, allowing for pipe internal inspection. This solves the problem of existing pipe inspection robots failing to ensure the inspection components are centered in the pipe, thus affecting the inspection results. The telescopic handle 11 allows the inspection robot body 1 to be moved out of the pipe. After inspection, the adjusting ring 7 is reset, and with the elastic band 6, the flipped-out adjusting arm 3 retracts back to the outer ring of the inspection robot body 1. This significantly reduces the size of this telescopic arm-type pipe inspection robot suitable for different pipe diameters, facilitating transportation and storage.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic arm pipe inspection robot suitable for pipes of different diameters, comprising a robot body (1), characterized in that: The outer ring of the main body (1) of the detection robot has two sets of U-shaped seats (2) symmetrically distributed. The four U-shaped seats (2) are a group. The inner cavity of the U-shaped seat (2) is provided with an adjusting arm (3). One side of the adjusting arm (3) is rotatably connected to the U-shaped seat (2) by an adjusting shaft (4). The other side of the adjusting arm (3) is provided with a limiting ball (5). The four adjusting arms (3) are connected by an elastic band (6). The outer rings on both sides of the main body (1) of the detection robot are provided with adjusting rings (7). The outer ring of the main body (1) of the detection robot is provided with an external thread (8). The inner ring of the adjusting ring (7) is provided with an internal thread (9). One side of the main body (1) of the detection robot is provided with a pipe detection mechanism (10). The other side of the main body (1) of the detection robot is provided with a retractable grip (11).

2. The telescopic arm pipe inspection robot suitable for pipes of different diameters according to claim 1, characterized in that: When the elastic band (6) deforms, all four adjusting arms (3) are in contact with the outer ring wall of the detection robot body (1).

3. The telescopic arm pipe inspection robot suitable for pipes of different diameters according to claim 1, characterized in that: The contact surfaces of the adjusting arm (3) and the adjusting ring (7) are both chamfered. The outer ring of the detection robot body (1) is symmetrically marked with scales, and the zero scale line of the scale is located on both sides of the detection robot body (1).

4. A telescopic arm pipe inspection robot suitable for pipes of different diameters according to claim 1, characterized in that: The pipeline inspection mechanism (10) includes an inspection platform (101) rotatably mounted on one side of the inspection robot body (1). A servo motor (102) is fixedly connected to the inner wall of one side of the inspection robot body (1). The servo motor (102) is fixedly connected to the inspection platform (101).

5. A telescopic arm pipe inspection robot suitable for pipes of different diameters according to claim 4, characterized in that: The top of the detection truncated cone (101) is provided with an adjustment groove (103), and a detection probe (104) is provided in the inner cavity of the adjustment groove (103). An electric push rod (105) is fixedly connected to the bottom of the detection probe (104), and the bottom of the electric push rod (105) is fixedly connected to the bottom of the inner cavity of the adjustment groove (103).

6. A telescopic arm pipe inspection robot suitable for pipes of different diameters according to claim 5, characterized in that: The outer ring of the detection frustum (101) is provided with two symmetrical lighting lamps (12), which are located at both ends of the detection probe (104).

Citation Information

Patent Citations

  • Telescopic arm type pipeline detection robot suitable for pipes with different sizes and pipe diameters

    CN212776263U