Pipeline nondestructive testing device suitable for narrow environment
By employing a combination design of protective shell, chassis, clamping plate, and clamping block in the non-destructive testing device for pipelines in narrow environments, the problem of slippage of the device in humid or inclined pipelines has been solved, achieving stable operation and efficient testing under different conditions.
Patent Information
- Application Number
- CN202422815235.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing non-destructive testing devices for narrow environments are prone to slipping in wet or inclined pipes, rendering the devices unusable and limiting their applicability.
The device employs a combination design of components such as a protective shell, chassis, clamping plate, clamping block, and clamping slot. The clamping plate and clamping slot work together to achieve quick fixing and disassembly. Combined with an electric telescopic rod and a two-way screw, the position of the auxiliary wheel can be adjusted to adapt to different pipeline conditions and prevent the device from tipping over.
This improves the applicability and effectiveness of the device, ensures stable operation under different pipeline conditions, and reduces the intensity of manual labor and the risk of device tipping over.
Smart Images

Figure CN223511753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipeline non-destructive testing equipment, specifically a pipeline non-destructive testing device suitable for narrow environments. Background Technology
[0002] Non-destructive testing (NDT) devices for pipelines in confined environments are widely used, such as for water pipes and metal pipes. They can quickly and accurately detect the location, direction, and depth of underground pipelines, as well as the location and size of damage points in the anti-corrosion layer of steel pipes, without disturbing the ground cover. They are essential instruments for water companies, gas companies, railway communications, municipal construction, industrial and mining enterprises, and infrastructure units for the renovation, maintenance, and general survey of underground pipelines.
[0003] A search revealed a Chinese patent with publication number CN220061041 U, which discloses a non-destructive testing device for pipelines suitable for narrow environments. This invention uses a motor and wheels, with the motor's start and stop controlled by an operation button, thus controlling the movement of the wheels. Workers place the testing component inside the pipeline and control the testing head to reach the designated position inside the pipeline by controlling the operation button. This eliminates the need for manual cable adjustment, thereby improving work efficiency and enhancing practicality.
[0004] However, similar to the non-destructive testing device for pipelines in narrow environments described above, which uses a motor and wheels to move the testing components, the wheels are prone to slipping inside the pipeline when the pipeline is wet or at a certain angle, due to the different substances being transported and the different installation angles. This renders the device unusable and limits its applicability. Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] In view of the above-mentioned shortcomings and defects in the prior art, such as the limitation of the applicability of the device, the present invention addresses these issues.
[0006] This utility model discloses a non-destructive testing device for pipelines suitable for narrow environments, comprising a protective shell and a control component. A detection head is provided on the protective shell and connected to the control component. A chassis is provided on the lower end face of the protective shell, and a clamping plate is installed on one end of the chassis. A fixing groove is provided on the protective shell at the position corresponding to the clamping plate. A clamping block is provided on the other end of the chassis, and a clamping groove is provided on the protective shell at the position corresponding to the clamping block. An auxiliary component is provided on the upper end of the protective shell.
[0007] Furthermore, an electric telescopic rod is provided between the locking block and the chassis, with one end of the electric telescopic rod fixedly connected to the chassis and the other end of the electric telescopic rod fixedly connected to the locking block.
[0008] Furthermore, a baffle is provided on one side of the card block, and the baffle is rotatably connected to the protective shell.
[0009] Furthermore, both the card plate and the card block are configured as "L" shapes, and there are two card plates, which are symmetrically arranged at the same end of the protective shell.
[0010] Furthermore, the auxiliary component includes a mounting plate, an auxiliary wheel is provided above the mounting plate, two sliders are symmetrically arranged on the upper surface of the mounting plate, the two sliders are connected to the auxiliary wheel through a connecting plate, and a driving component is provided between the sliders and the mounting plate.
[0011] Furthermore, the driving component includes a bidirectional screw, which is rotatably mounted on the mounting plate, and both ends of the bidirectional screw are threadedly connected to the corresponding sliders.
[0012] Furthermore, the control component includes a controller, which is connected to the detection head via a wiring harness, and lighting lamps are provided on the protective shells on both sides of the detection head.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model is equipped with components such as a chassis, protective shell, clamping plate, fixing groove, clamping block, and clamping slot. During operation, the clamping plate and fixing groove cooperate to connect one end of the chassis to the protective shell. The clamping block and clamping slot cooperate to quickly fix the chassis to the protective shell. By separating the clamping block and clamping slot, the chassis can be easily disassembled and replaced quickly, thereby achieving the effect of adjusting different chassis of the equipment according to the actual situation, improving the applicability and use effect of the device.
[0015] 2. This utility model is equipped with components such as a bidirectional screw, a slider, a connecting plate, and an auxiliary wheel. During operation, the bidirectional screw, slider, and connecting plate components work together. The operator drives the bidirectional screw to rotate, which in turn moves the two sliders relative to each other. The connecting plate then moves the auxiliary wheel, thereby adjusting the distance between the auxiliary wheel and the upper surface of the protective shell. This achieves indirect contact between the upper surface of the protective shell and the inner wall of the pipe, thus preventing the equipment from tipping over. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the chassis structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the bottom of the protective shell of this utility model.
[0021] In the diagram: 1. Protective shell; 2. Detection head; 3. Lighting lamp; 4. Chassis; 5. Clamping plate; 6. Fixing groove; 7. Clamping block; 8. Clamping slot; 9. Baffle; 10. Electric telescopic rod; 11. Mounting plate; 12. Bidirectional screw; 13. Slider; 14. Auxiliary wheel; 15. Connecting plate; 16. Controller; 17. Wiring harness; 18. Track; 19. Rubber wheel. Detailed Implementation
[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0023] Please see Figures 1-4 As shown, the present invention provides a non-destructive testing device for pipelines in narrow environments, comprising a protective shell 1 and a control component. A detection head 2 is mounted on the protective shell 1 and connected to the control component. A chassis 4 is mounted on the lower end face of the protective shell 1. Different chassis 4 are equipped with tracks 18 or rubber wheels 19. A motor and a battery are installed inside the chassis 4. The battery powers the motor, which drives the corresponding tracks 18 or rubber wheels 19 to rotate. A clamping plate 5 is mounted on one end of the chassis 4. A fixing groove 6 is provided on the protective shell 1 at the corresponding position of the clamping plate 5. A clamping block 7 is provided on the other end of the chassis 4. A clamping groove 8 is provided on the protective shell 1 at the corresponding position of the clamping block 7. An auxiliary component is mounted on the upper end of the protective shell 1.
[0024] When the chassis 4 needs to be replaced, the operator drives the locking block 7 to separate from the locking slot 8, releasing the fixed connection between the chassis 4 and the protective shell 1. Then, the chassis 4 and the protective shell 1 can be separated. Next, the locking plate 5 on the new chassis 4 is connected to the fixing slot 6, and the lower end face of the protective shell 1 is brought into contact with the upper end face of the chassis 4. Then, the operator holds the protective shell 1 and drives the locking block 7 to move into the locking slot 8 to achieve locking. Then, the protective shell 1 is placed into the designated pipe, and the chassis 4 drives the protective shell 1 to move. After reaching the position, the pipe at the designated position can be inspected by the detection head 2.
[0025] like Figure 1 , Figure 3 As shown, the control component includes a controller 16, which is connected to the detection head 2 via a wiring harness 17. Illumination lights 3 are installed on the protective shells 1 on both sides of the detection head 2. An electric telescopic rod 10 is installed between the locking block 7 and the chassis 4. One end of the electric telescopic rod 10 is fixedly connected to the chassis 4, and the other end is fixedly connected to the locking block 7. When it is necessary to separate the locking block 7 from the locking slot 8, the operator can control the electric telescopic rod 10 to retract via the controller 16. The electric telescopic rod 10 drives the locking block 7 and the locking slot 8 to automatically separate. During installation, after the operator presses down on the protective shell 1, the electric telescopic rod 10 can be reversed via the controller 16 to automatically connect the locking block 7 and the locking slot 8, thereby reducing the operator's workload.
[0026] like Figure 2 As shown, a baffle 9 is provided on one side of the card block 7. The baffle 9 is rotatably connected to the protective shell 1. A rubber pad is provided between the baffle 9 and the protective shell 1. The baffle 9 can protect the connection between the card block 5 and the fixing groove 6, and at the same time protect the electric telescopic rod 10 to reduce damage from external forces.
[0027] like Figure 3 As shown, both the card plate 5 and the card block 7 are set in an "L" shape. There are two card plates 5, which are symmetrically arranged at the same end of the protective shell 1. The auxiliary components include a mounting plate 11, an auxiliary wheel 14 is provided above the mounting plate 11, and two sliders 13 are symmetrically arranged on the upper surface of the mounting plate 11. The two sliders 13 are connected to the auxiliary wheel 14 through a connecting plate 15. A driving component is provided between the sliders 13 and the mounting plate 11.
[0028] like Figure 2 As shown, the driving component includes a bidirectional screw 12, which is rotatably mounted on the mounting plate 11. Both ends of the bidirectional screw 12 are threadedly connected to the corresponding sliders 13. After the protective shell 1 is placed into the pipe, the operator drives the bidirectional screw 12 to rotate. The bidirectional screw 12 drives the two sliders 13 to move closer to each other. At the same time, the sliders 13 drive one end of the corresponding connecting plate 15 to move. The other end of the connecting plate 15 lifts the auxiliary wheel 14 until the auxiliary wheel 14 contacts the inner wall of the pipe and stops, thereby preventing the pipe from tipping over when it moves inside the equipment. By driving the bidirectional screw 12 to rotate in the opposite direction, the auxiliary wheel 14 and the connecting plate 15 are folded and stored, reducing the space occupied by the device.
[0029] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A non-destructive testing device for pipelines suitable for confined environments, comprising a protective housing (1) and a control assembly, characterized in that: The protective shell (1) is provided with a detection head (2), which is connected to the control component. The lower end face of the protective shell (1) is provided with a chassis (4). One end of the chassis (4) is equipped with a clamping plate (5). The protective shell (1) at the corresponding position of the clamping plate (5) is provided with a fixing groove (6). The other end of the chassis (4) is provided with a clamping block (7). The protective shell (1) at the corresponding position of the clamping block (7) is provided with a clamping groove (8). The upper end of the protective shell (1) is provided with an auxiliary component.
2. The pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: An electric telescopic rod (10) is provided between the locking block (7) and the chassis (4). One end of the electric telescopic rod (10) is fixedly connected to the chassis (4), and the other end of the electric telescopic rod (10) is fixedly connected to the locking block (7).
3. The pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: A baffle (9) is provided on one side of the card block (7), and the baffle (9) is rotatably connected to the protective shell (1).
4. The pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: Both the card plate (5) and the card block (7) are set in an "L" shape. There are two card plates (5), and the two card plates (5) are symmetrically arranged at the same end of the protective shell (1).
5. A pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: The auxiliary component includes a mounting plate (11), an auxiliary wheel (14) is provided above the mounting plate (11), two sliders (13) are symmetrically arranged on the upper end face of the mounting plate (11), the two sliders (13) are connected to the auxiliary wheel (14) through a connecting plate (15), and a driving component is provided between the sliders (13) and the mounting plate (11).
6. A pipe non-destructive testing device suitable for narrow environments according to claim 5, characterized in that: The driving component includes a bidirectional screw (12), which is rotatably mounted on the mounting plate (11), and both ends of the bidirectional screw (12) are threadedly connected to the corresponding sliders (13).
7. A pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: The control component includes a controller (16), which is connected to the detection head (2) via a wiring harness (17). Illumination lamps (3) are provided on the protective shells (1) on both sides of the detection head (2).
Citation Information
Patent Citations
Pipeline nondestructive testing device suitable for narrow environment
CN220061041U