A pipeline inspection probe
By introducing a threaded ring, a movable frame, a support rod, and an adjustment mechanism into the pipeline inspection probe, the problem of fixing the pipeline inspection probe inside the pipeline is solved, achieving stable detection and protection, reducing the impact of sludge, and improving the reliability and efficiency of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XIANHENG INT FINE MEASURING INSTR CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-10
AI Technical Summary
Existing pipeline inspection probes lack a fixed structure when moving inside the pipeline, and sludge affects the use of auxiliary rollers, resulting in unstable detection.
A pipeline inspection probe was designed, comprising a movable body, a threaded ring, a movable frame, a support rod, auxiliary rollers, and an adjustment mechanism. It is fixed by a baffle pressing against the pipe wall to reduce the influence of sludge, and the position of the baffle is adjusted by the adjustment mechanism to achieve stable detection.
It achieves stable positioning and protection of the pipeline inspection probe in pipelines of different diameters, reduces the impact of sludge on the inspection, and improves the reliability and efficiency of the inspection.
Smart Images

Figure CN224479443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline inspection technology, and specifically to a pipeline inspection probe. Background Technology
[0002] Pipeline inspection technology is a safety and reliability evaluation technique developed to ensure the safe and reliable operation of pipelines. Based on the relative position of the inspection equipment and the pipeline, it can be divided into two main categories: internal inspection and external inspection. A pipeline inspection probe is a device used to inspect the internal condition of a pipeline; it can be used to check for problems such as corrosion, cracks, and blockages.
[0003] Currently, most pipeline inspection probes move within pipelines using auxiliary rollers for support, enabling them to inspect pipes of varying diameters. However, these probes lack a structure to secure the auxiliary rollers, often making it impossible to fix them in place for accurate positioning within the pipeline. Furthermore, sludge within the pipeline can affect the use of the auxiliary rollers, thus impacting the probe's operation. Therefore, there is an urgent need to design a pipeline inspection probe to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a pipeline inspection probe to address the aforementioned shortcomings in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A pipeline inspection probe includes a movable body. A probe is mounted at one end of the movable body, and a wire is mounted at the other end. Two threaded rings are threadedly fitted around the circumference of the movable body. At least three movable frames are mounted around the two threaded rings. Two support rods are rotatably fitted to the bottom of each movable frame. The two ends of each support rod are rotatably connected to the two threaded rings. Multiple auxiliary rollers are rotatably fitted inside each movable frame. Three push rods, corresponding to the three movable frames, are slidably fitted between the two threaded rings. One end of each push rod is rotatably fitted with an adjusting rod, and one end of each adjusting rod is rotatably fitted with a baffle. An adjusting mechanism, cooperating with the three adjusting rods, is mounted around the probe. The three baffles correspond to the three movable frames, with one end of each baffle engaging with and corresponding to the probe. A pull ring is mounted on the end of each push rod away from the adjusting rod.
[0007] Furthermore, external threads are provided on the periphery of both ends of the mobile body, the two external threads are symmetrically arranged, the two threaded rings are respectively threaded with the two external threads, and a corrugated hose is provided between the two threaded rings.
[0008] Furthermore, a movable plate is slidably fitted inside the movable frame, and multiple springs are provided between the movable plate and the movable frame, with multiple auxiliary rollers rotatably fitted inside the movable plate.
[0009] Furthermore, the adjustment mechanism includes a fixing ring sleeved around the probe and three fixing rods disposed around the probe. Each of the three adjustment rods has a limiting groove, and one end of each of the three fixing rods slides into the limiting groove.
[0010] Furthermore, each of the three baffles has a protective plate at one end, the three protective plates are interlocked, each of the three baffles has an inclined plate on both sides, and each of the three baffles has a rubber strip at the other end, the three rubber strips corresponding to the three movable frames respectively.
[0011] Furthermore, each of the three protective plates has a locking block on one side and a locking slot on the other side, with the locking block engaging with the locking slot.
[0012] In the above technical solution, the pipeline inspection probe provided by this utility model has the following beneficial effects:
[0013] The baffles allow the push rod to move, which in turn moves the adjusting rod, causing the baffles to move between the moving frame and the pipe wall, thus fixing the entire device and facilitating probe detection. When the three baffles are closed, they protect the probe and the auxiliary rollers inside the three moving frames, reducing the impact of sludge in the pipeline on the probe and auxiliary rollers' detection and movement. The adjusting mechanism adjusts the direction of the adjusting rod's movement when the push rod moves, causing the baffles to move to the moving frame, facilitating the compression and fixation between the moving frame and the pipe wall. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0015] Figure 1 This is a schematic diagram of the structure of a pipeline inspection probe according to an embodiment of the present invention.
[0016] Figure 2 This is a schematic diagram of the moving main body structure provided for an embodiment of a pipeline inspection probe of this utility model.
[0017] Figure 3This invention provides an embodiment of a pipeline inspection probe. Figure 2 Enlarged view of the structure at point A in the middle.
[0018] Figure 4 This is a schematic diagram of the baffle structure provided in an embodiment of a pipeline inspection probe of this utility model.
[0019] 1. Moving body; 2. Probe; 3. Wire; 4. Threaded ring; 5. Moving frame; 6. Support rod; 7. Auxiliary roller; 8. Push rod; 9. Adjusting rod; 10. Baffle; 11. Adjusting mechanism; 12. Pull ring; 13. External thread; 14. Corrugated hose; 15. Moving plate; 16. Spring; 17. Fixing ring; 18. Fixing rod; 19. Limiting groove; 20. Protective plate; 21. Inclined plate; 22. Rubber strip; 23. Locking block; 24. Locking groove. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0021] like Figure 1-4 As shown in the figure, this utility model provides a pipeline inspection probe.
[0022] The device includes a movable body 1, with a probe 2 at one end and a wire 3 at the other end. Two threaded rings 4 are threaded around the movable body 1, and at least three movable frames 5 are located around the two threaded rings 4. Two support rods 6 are rotatably connected to the bottom of each movable frame 5, with their ends rotatably connected to the two threaded rings 4 respectively. Multiple auxiliary rollers 7 are rotatably connected inside each movable frame 5. Three push rods 8, corresponding to the three movable frames 5, are slidably connected between the two threaded rings 4. One end of each push rod 8 is rotatably connected to an adjusting rod 9, and one end of each adjusting rod 9 is rotatably connected to a baffle 10. An adjusting mechanism 11, cooperating with the three adjusting rods 9, is located around the probe 2. The three baffles 10 correspond to the three movable frames 5 respectively, with one end of each baffle 10 engaging with and corresponding to the probe 2. A pull ring 12 is installed at the end of each push rod 8 away from the adjusting rod 9.
[0023] Reference Figure 2 In this embodiment, external threads 13 are provided on the periphery of both ends of the movable body 1. The two external threads 13 are symmetrically arranged, and the two threaded rings 4 are threadedly engaged with the two external threads 13 respectively. A corrugated hose 14 is provided between the two threaded rings 4. The corrugated hose 14 can protect the area between the two threaded rings 4 and the external threads 13. When the two threaded rings 4 move, the corrugated hose 14 can extend and retract.
[0024] Reference Figure 2In this embodiment, a movable plate 15 is slidably fitted inside the movable frame 5. Multiple springs 16 are provided between the movable plate 15 and the movable frame 5, and multiple auxiliary rollers 7 are rotatably fitted inside the movable plate 15. Through the provided springs 16, when the auxiliary rollers 7 are squeezed, the auxiliary rollers 7 can drive the movable plate 15, causing the movable plate 15 to squeeze the springs 16, allowing the movable plate 15 and the auxiliary rollers 7 to retract into the movable frame 5, so that the movable frame 5 can cooperate with the baffle 10 to press and fix against the pipe wall.
[0025] Reference Figure 3 The adjustment mechanism 11 in this embodiment includes a fixing ring 17 sleeved around the probe 2 and three fixing rods 18 disposed around the probe 2. Each of the three adjusting rods 9 has a limiting groove 19, and one end of each of the three fixing rods 18 slides into the limiting groove 19. When the push rod 8 pushes the adjusting rod 9 to move, the fixing rod 18 limits the movement of the adjusting rod 9. One end of the fixing rod 18 moves along the limiting groove 19, allowing the adjusting rod 9 to rotate through the limiting groove 19. The rotation of the adjusting rod 9 causes the baffle 10 to move.
[0026] Reference Figure 4 In this embodiment, each of the three baffles 10 has a protective plate 20 at one end, and the three protective plates 20 are interlocked. Each of the three baffles 10 has an inclined plate 21 on both sides, and each of the three baffles 10 has a rubber strip 22 at the other end. The three rubber strips 22 correspond to the three movable frames 5 respectively. The protective plates 20 protect the probe 2, the inclined plates 21 separate and guide the sludge, and the rubber strips 22 adhere to the pipe wall to protect the auxiliary roller 7. The rubber strips 22 also increase friction between the movable frame 5 and the pipe wall.
[0027] Reference Figure 4 In this embodiment, each of the three protective plates 20 has a locking block 23 on one side and a locking groove 24 on the other side. The locking block 23 engages with the locking groove 24. When the three protective plates 20 are closed, the locking blocks 23 can respectively enter the corresponding locking grooves 24, causing the three protective plates 20 to engage and close, thus protecting the probe 2.
[0028] Working principle: In use, first adjust the positions of the three movable frames 5 according to the required pipe size. Rotate the two threaded rings 4 to bring them closer or further apart, so that the two threaded rings 4 drive the movable frames 5 to move through the two support rods 6. All three movable frames 5 can be adjusted simultaneously. After adjustment, the probe 2 faces the pipe, allowing the probe 2 and the movable body 1 to enter the pipe. At this time, the auxiliary rollers 7 inside the movable frames 5 will be against the bottom of the inner wall of the pipe, supporting the movable body 1. Then, the movable body 1 can be pushed into the pipe through the wire 3. During the movement of the movable body 1, the three baffles 10 will support the probe 2 and the three movable frames 5. The frame 5 provides protection. When it is necessary to fix the equipment for testing, push the pull ring 12 to move the three push rods 8, so that the three push rods 8 drive the three adjusting rods 9 to move. The adjusting mechanism 11 will adjust the direction of one end of the adjusting rod 9, so that the adjusting rod 9 rotates. The adjusting rod 9 moves and rotates, driving the baffle 10 to move, so that the three baffles 10 open to expose the probe 2. Then the three baffles 10 will enter between the three moving frames 5 and the pipe wall to squeeze and fix them, fixing the moving body 1, so that the probe 2 can perform the testing. After the test is completed, pull the pull ring 12 to drive the three baffles 10 to close, protecting the probe 2 and the moving frame 5, so that the moving body 1 can move out of the pipeline.
[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A pipeline inspection probe, comprising a movable body (1), characterized in that, One end of the moving body (1) is provided with a probe (2), and the other end of the moving body (1) is provided with a wire (3). Two threaded rings (4) are threaded around the periphery of the moving body (1). At least three moving frames (5) are provided around the periphery of the two threaded rings (4). Two support rods (6) are rotatably connected to the bottom of each moving frame (5). The two ends of the two support rods (6) are rotatably connected to the two threaded rings (4). Multiple auxiliary rollers (7) are rotatably connected inside the moving frame (5). The two threaded rings (4) are slidably connected to the three auxiliary rollers (7). The three push rods (8) corresponding to the movable frame (5) are rotatably fitted with an adjusting rod (9) at one end of each of the three push rods (8). The three adjusting rods (9) are rotatably fitted with a baffle (10) at one end of each of the three adjusting rods (9). An adjusting mechanism (11) is provided around the probe (2) to cooperate with the three adjusting rods (9). The three baffles (10) are respectively corresponding to the three movable frames (5). One end of the three baffles (10) is snapped into place and corresponds to the probe (2). A pull ring (12) is installed at the end of the three push rods (8) away from the adjusting rod (9).
2. The pipeline inspection probe according to claim 1, characterized in that, External threads (13) are provided on both sides of the moving body (1). The two external threads (13) are symmetrically arranged. The two threaded rings (4) are threadedly engaged with the two external threads (13) respectively. A corrugated hose (14) is provided between the two threaded rings (4).
3. A pipeline inspection probe according to claim 1, characterized in that, A movable plate (15) is slidably fitted inside the movable frame (5), and a plurality of springs (16) are provided between the movable plate (15) and the movable frame (5). A plurality of auxiliary rollers (7) are rotatably fitted inside the movable plate (15).
4. A pipeline inspection probe according to claim 1, characterized in that, The adjustment mechanism (11) includes a fixing ring (17) sleeved around the probe (2) and three fixing rods (18) arranged around the probe (2). Each of the three adjustment rods (9) has a limiting groove (19), and one end of each of the three fixing rods (18) slides into the limiting groove (19).
5. A pipeline inspection probe according to claim 1, characterized in that, Each of the three baffles (10) has a protective plate (20) at one end, and the three protective plates (20) are interlocked. Each of the three baffles (10) has a sloping plate (21) on both sides, and each of the three baffles (10) has a rubber strip (22) at the other end. Each of the three rubber strips (22) corresponds to one of the three movable frames (5).
6. A pipeline inspection probe according to claim 5, characterized in that, Each of the three protective plates (20) has a locking block (23) on one side and a locking groove (24) on the other side, wherein the locking block (23) engages with the locking groove (24).