Novel pipeline nondestructive testing device
By designing an automated pipeline non-destructive testing device, which uses a motor to drive a support roller to rotate the pipeline and adjust the position of the ultrasonic probe, the problems of inconvenient operation and pipeline movement in the existing technology are solved, and convenient and efficient weld inspection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU YAYUAN NONDESTRUCTIVE TESTING CO LTD
- Filing Date
- 2025-05-17
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, pipeline weld inspection requires holding an ultrasonic probe and manually rotating the pipeline, which is inconvenient and makes it difficult to prevent the pipeline from moving laterally.
A non-destructive testing device was designed, comprising a base, a support plate, a support roller, a sprocket, a chain, a motor, a positioning component, and a lateral movement component. The motor drives the support roller to rotate the pipeline, and the positioning component and the lateral movement component automatically adjust the position of the ultrasonic probe to achieve automatic testing.
This eliminates the need for handheld ultrasonic probes and pipe rotation, improving the convenience and accuracy of testing, preventing lateral pipe movement, and increasing testing efficiency.
Smart Images

Figure CN224203138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline inspection technology, specifically a novel non-destructive testing device for pipelines. Background Technology
[0002] Non-destructive testing (NDT) of pipelines is a technique that uses physical or chemical methods to identify and assess internal and surface defects of pipelines without damaging their structure. Some pipelines require welding, and ultrasonic flaw detectors are typically used to inspect the weld seams to ensure they are up to standard. Currently, this is usually done by workers holding an ultrasonic probe and manually rotating the pipeline, which is cumbersome. Therefore, we propose a novel NDT device to address these issues. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a novel non-destructive testing device for pipelines, which solves the problems mentioned in the background section.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A novel pipeline non-destructive testing device includes a base, two support plates symmetrically fixed to the top of the base, two support rollers symmetrically arranged between the two support plates, both ends of the two support rollers being rotatably connected to the side walls of the corresponding support plates via bearings, and a sprocket fixed to one end of each support roller, the two sprockets being connected by chain drive. A support seat is fixed to the top of the base, and a first motor is fixed to the top of the support seat. The output shaft of the first motor is fixedly connected to one end of one of the support rollers. A positioning assembly is arranged between the two support plates. An L-shaped plate is fixed to the top of the base, and a transverse movement assembly is installed at the top of the L-shaped plate. An electric push rod is installed on the transverse movement assembly, and a connecting seat is fixed to the protruding end of the electric push rod. An ultrasonic probe is fixedly installed on the connecting seat. A flaw detector body is fixed to the top of the L-shaped plate, and the ultrasonic probe is connected to the flaw detector body via a data cable.
[0008] Furthermore, the positioning assembly includes a bidirectional screw that is rotatably mounted between two support plates via bearings. One end of the bidirectional screw is fixed with a throttle handle. Two guide rods are symmetrically fixed between the two support plates. Two connecting plates are symmetrically threaded onto the surface of the bidirectional screw. Both connecting plates are slidably sleeved on the surface of the two guide rods. A connecting rod is fixed to the top of each of the two connecting plates. Both connecting rods pass through the gap between the two support rollers and are fixed with baffles.
[0009] Furthermore, the surface of the connecting plate is provided with threaded holes adapted to the corresponding surface of the bidirectional screw, and the surface of the connecting plate is symmetrically provided with two guide holes adapted to the guide rod, and the surface of the throttle is provided with anti-slip texture.
[0010] Furthermore, the transverse movement assembly includes two fixed plates symmetrically fixed to the lower surface of the top of the L-shaped plate. A one-way screw is rotatably mounted between the two fixed plates via a bearing. Two crossbars are symmetrically fixed between the two fixed plates. A mounting base is fixed to one side wall of one of the fixed plates. A second motor is fixed to the top of the mounting base. The output shaft of the second motor is fixedly connected to one end of the one-way screw. A T-shaped plate is threaded onto the surface of the one-way screw. The T-shaped plate is slidably sleeved on the surface of the two crossbars. The T-shaped plate is fixedly connected to an electric push rod.
[0011] Furthermore, the surface of the T-shaped plate is provided with threaded holes adapted to a one-way screw, and the surface of the T-shaped plate is symmetrically provided with two sliding holes adapted to a crossbar.
[0012] Furthermore, the surface of the L-shaped plate is provided with a strip-shaped opening for avoiding the data cable, and the surface of the connector is provided with a through hole adapted to the data cable.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a novel non-destructive testing device for pipelines, which has the following beneficial effects:
[0015] This invention, by setting up a base, support plate, support roller, sprocket, chain, support seat, first motor, L-shaped plate, lateral movement component, electric push rod, connecting seat, ultrasonic probe and flaw detector body, eliminates the need for operators to hold the ultrasonic probe or rotate the pipe when inspecting the weld seam of the pipeline to be inspected, making operation more convenient. By setting up a positioning component, it can prevent the pipeline to be inspected from moving laterally when rotating, thereby improving the inspection effect. Attached Figure Description
[0016] Figure 1 This is a first-person view structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the overall third-view structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model.
[0020] In the diagram: 1. Base; 2. Support plate; 3. Support roller; 4. Sprocket; 5. Chain; 6. Support seat; 7. First motor; 8. Positioning assembly; 801. Bidirectional screw; 802. Throttle; 803. Guide rod; 804. Connecting plate; 805. Connecting rod; 806. Baffle; 9. L-shaped plate; 10. Lateral movement assembly; 1001. Fixing plate; 1002. Unidirectional screw; 1003. Crossbar; 1004. Mounting seat; 1005. Second motor; 1006. T-shaped plate; 11. Electric push rod; 12. Connecting seat; 13. Ultrasonic probe; 14. Flaw detector body. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example
[0023] like Figure 1-3As shown in the figure, a novel pipeline non-destructive testing device according to one embodiment of the present invention includes a base 1, two support plates 2 symmetrically fixed to the top of the base 1, two support rollers 3 symmetrically arranged between the two support plates 2, and both ends of the two support rollers 3 being rotatably connected to the side walls of the corresponding support plates 2 via bearings. A sprocket 4 is sleeved and fixed to one end of each support roller 3, and the two sprockets 4 are connected by a chain 5. A support base 6 is fixed to the top of the base 1, and a first motor 7 is fixed to the top of the support base 6. The output shaft of the first motor 7 is fixed to one end of one of the support rollers 3. The base 1 is fixedly connected to a positioning component 8 between two support plates 2. An L-shaped plate 9 is fixedly fixed to the top of the base 1. A transverse component 10 is installed on the top of the L-shaped plate 9. An electric push rod 11 is installed on the transverse component 10. A connecting seat 12 is fixedly fixed to the top end of the electric push rod 11. An ultrasonic probe 13 is fixedly installed on the connecting seat 12. A flaw detector body 14 is fixedly fixed to the top of the L-shaped plate 9. The ultrasonic probe 13 is connected to the flaw detector body 14 through a data cable. A strip-shaped opening for avoiding the data cable is opened on the surface of the L-shaped plate 9. A through hole for the data cable is opened on the surface of the connecting seat 12.
[0024] When inspecting the weld seam of the pipeline to be inspected, the pipeline is placed between two support rollers 3, and then the positioning component 8 is used to position the pipeline. It should be noted that the positioning component 8 does not fix the pipeline to be inspected, but rather prevents the pipeline from moving laterally. Then, the first motor 7 is started, which drives one of the support rollers 3 to rotate. Under the action of the two sprockets 4 and the chain 5, the other support roller 3 will also rotate synchronously. Thus, the pipeline to be inspected can be driven to rotate under the action of the two support rollers 3. Then, the ultrasonic probe 13 is moved to the weld seam of the pipeline to be inspected using the lateral movement component 10 and the electric push rod 11. In this way, the weld seam of the pipeline to be inspected can be inspected. It should be further noted that the weld seam of the pipeline to be inspected is coated with coupling agent. The ultrasonic probe 13 transmits the detected information to the flaw detector body 14 for display via the data cable, so the operation is relatively convenient.
[0025] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the positioning assembly 8 includes a bidirectional screw 801 rotatably mounted between two support plates 2 via bearings. One end of the bidirectional screw 801 is fixed with a handle 802, the surface of which has anti-slip textures for better anti-slip properties. Two guide rods 803 are symmetrically fixed between the two support plates 2. Two connecting plates 804 are symmetrically threaded onto the surface of the bidirectional screw 801. Both connecting plates 804 are slidably fitted onto the surfaces of the two guide rods 803. The surface of the connecting plates 804 has threaded holes adapted to the corresponding surfaces of the bidirectional screw 801, and two guide holes symmetrically formed on the surface of the connecting plates 804 to adapt to the guide rods 803. Each of the two pipes has a connecting rod 805 fixed at the top. Both connecting rods 805 pass through the gap between the two support rollers 3 and are fixed with baffles 806. When the pipe to be inspected needs to be positioned, the handle 802 can be rotated. The handle 802 can drive the bidirectional screw 801 to rotate. The bidirectional screw 801 can drive the two connecting plates 804 to move towards the middle. The connecting plates 804 can drive the corresponding baffles 806 to move towards the middle through the connecting rods 805. Thus, the two baffles 806 can be attached to both ends of the pipe to be inspected. It should be noted that the two baffles 806 are only attached to both ends of the pipe to be inspected and will not apply pressure to the pipe to be inspected. In this way, the pipe to be inspected will not move laterally when it is rotated.
[0026] like Figure 1 and Figure 2 As shown, in some embodiments, the transverse assembly 10 includes two fixed plates 1001 symmetrically fixed to the lower top surface of the L-shaped plate 9. A one-way screw 1002 is rotatably mounted between the two fixed plates 1001 via a bearing. Two crossbars 1003 are symmetrically fixed between the two fixed plates 1001. A mounting base 1004 is fixed to one side wall of one of the fixed plates 1001. A second motor 1005 is fixed to the top of the mounting base 1004. The output shaft of the second motor 1005 is fixedly connected to one end of the one-way screw 1002. A T-shaped plate 1006 is threadedly connected to the surface of the one-way screw 1002. The T-shaped plate 1006 is slidably sleeved on the surface of the two crossbars 1003. An opening is formed on the surface of the T-shaped plate 1006. The T-plate 1006 has a threaded hole adapted to the one-way screw 1002, and two sliding holes adapted to the crossbar 1003 are symmetrically opened on its surface. The T-plate 1006 is fixedly connected to the electric push rod 11. When it is necessary to adjust the lateral position of the ultrasonic probe 13, the second motor 1005 can be started. The second motor 1005 can drive the one-way screw 1002 to rotate, the one-way screw 1002 can drive the T-plate 1006 to move laterally in the horizontal direction, the T-plate 1006 can drive the electric push rod 11 to move, the electric push rod 11 can drive the connecting seat 12 to move, and the connecting seat 12 can drive the ultrasonic probe 13 to move, thereby achieving the adjustment of the lateral position of the ultrasonic probe 13 in the horizontal direction.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A novel non-destructive testing device for pipelines, comprising a base (1), characterized in that: Two support plates (2) are symmetrically fixed to the top of the base (1). Two support rollers (3) are symmetrically arranged between the two support plates (2). Both ends of the two support rollers (3) are rotatably connected to the side walls of the corresponding support plates (2) through bearings. A sprocket (4) is sleeved and fixed to one end of each support roller (3). The two sprockets (4) are connected by a chain (5). A support seat (6) is fixed to the top of the base (1). A first motor (7) is fixed to the top of the support seat (6). The output shaft of the first motor (7) is connected to one of the support rollers (3). One end is fixedly connected, and a positioning component (8) is provided between the two support plates (2). An L-shaped plate (9) is fixed on the top of the base (1). A transverse component (10) is installed on the top of the L-shaped plate (9). An electric push rod (11) is installed on the transverse component (10). A connecting seat (12) is fixed on the top end of the electric push rod (11). An ultrasonic probe (13) is fixedly installed on the connecting seat (12). A flaw detector body (14) is fixed on the top of the L-shaped plate (9). The ultrasonic probe (13) is connected to the flaw detector body (14) through a data cable.
2. The novel pipeline non-destructive testing device according to claim 1, characterized in that: The positioning assembly (8) includes a bidirectional screw (801) rotatably mounted between two support plates (2) via bearings. One end of the bidirectional screw (801) is fixed with a throttle (802). Two guide rods (803) are symmetrically fixed between the two support plates (2). Two connecting plates (804) are symmetrically threaded onto the surface of the bidirectional screw (801). Both connecting plates (804) are slidably sleeved on the surface of the two guide rods (803). A connecting rod (805) is fixed to the top of each of the two connecting plates (804). Both connecting rods (805) pass through the gap between the two support rollers (3) and are fixed with a baffle (806).
3. The novel pipeline non-destructive testing device according to claim 2, characterized in that: The surface of the connecting plate (804) is provided with threaded holes that are adapted to the corresponding surface of the bidirectional screw (801). The surface of the connecting plate (804) is symmetrically provided with two guide holes that are adapted to the guide rod (803). The surface of the throttle (802) is provided with anti-slip texture.
4. The novel pipeline non-destructive testing device according to claim 1, characterized in that: The transverse component (10) includes two fixed plates (1001) symmetrically fixed to the lower top surface of the L-shaped plate (9). A one-way screw (1002) is rotatably mounted between the two fixed plates (1001) via a bearing. Two crossbars (1003) are symmetrically fixed between the two fixed plates (1001). A mounting base (1004) is fixed to one side wall of one of the fixed plates (1001). A second motor (1005) is fixed to the top of the mounting base (1004). The output shaft of the second motor (1005) is fixedly connected to one end of the one-way screw (1002). A T-shaped plate (1006) is threadedly connected to the surface of the one-way screw (1002). The T-shaped plate (1006) is slidably sleeved on the surface of the two crossbars (1003). The T-shaped plate (1006) is fixedly connected to the electric push rod (11).
5. A novel pipeline non-destructive testing device according to claim 4, characterized in that: The surface of the T-shaped plate (1006) is provided with a threaded hole adapted to the one-way screw (1002), and the surface of the T-shaped plate (1006) is symmetrically provided with two sliding holes adapted to the crossbar (1003).
6. The novel pipeline non-destructive testing device according to claim 1, characterized in that: The surface of the L-shaped plate (9) is provided with a strip-shaped opening for avoiding the data cable, and the surface of the connector (12) is provided with a through hole adapted to the data cable.