A device for detecting the coating of an internal and external anticorrosion pipeline

Abstract

The utility model provides a kind of inside and outside double-sided anticorrosion pipeline coating detection device, it is related to pipeline coating detection technical field, including moving mechanism and the detection mechanism being set to moving mechanism and detecting pipeline inside and outside coating, moving mechanism includes two groups of mutually parallel moving assembly and the support component being connected two groups of moving assembly;Moving assembly includes three fixed blocks that are circumferentially arrayed arrangement, the distance adjusting component being set between every two adjacent fixed blocks, the outer drive wheel being set to one-to-one corresponding on the mutually remote position of multiple fixed blocks, and the inner drive wheel being set between adjacent two fixed blocks and installed on distance adjusting component;Fixed block is installed detection mechanism;The utility model can conveniently detect pipeline inside and outside coating, improves detection efficiency and the flexibility of detection.

Description

Technical Field

[0001] This utility model relates to the field of pipeline coating inspection technology, specifically a device for inspecting internal and external double-sided anti-corrosion pipeline coatings. Background Technology

[0002] In the field of pipeline engineering, anti-corrosion pipelines are widely used, and the quality of their coatings directly affects the service life and safety of the pipelines. Whether it is an energy transmission pipeline for oil and natural gas, or a pipeline for chemical, water supply and drainage, anti-corrosion coatings play a crucial role in preventing the pipelines from being corroded by the surrounding media.

[0003] However, there are currently many challenges in inspecting the internal and external coatings of pipelines. On the one hand, traditional inspection methods often require manual operation, which is not only inefficient but also poses significant difficulties and safety risks for large pipelines or those in complex environments. On the other hand, most existing inspection equipment is single-function, capable of inspecting either the internal or external coating, failing to achieve integrated inspection of both internal and external coatings. Furthermore, existing inspection equipment has limitations in adapting to pipelines of different diameters, making it difficult to meet diverse inspection needs. Therefore, developing an efficient, safe, and adaptable double-sided anti-corrosion pipeline coating inspection device is of significant practical importance. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a device for detecting anti-corrosion pipe coatings on both the inner and outer sides.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-sided anti-corrosion pipeline coating inspection device, comprising a moving mechanism and an inspection mechanism disposed on the moving mechanism for inspecting the inner and outer coatings of the pipeline; the moving mechanism comprises two sets of parallel moving components and a support component connecting the two sets of moving components; the moving component comprises three fixed blocks arranged in a circumferential array, an adjusting component disposed between two adjacent fixed blocks, an outer drive wheel disposed one-to-one with the multiple fixed blocks at mutually distant positions, and an inner drive wheel disposed between two adjacent fixed blocks and mounted on the adjusting component; the inspection mechanism is mounted on the fixed blocks;

[0006] When inspecting the inner coating of a pipe, the moving mechanism is inserted into the pipe. The distance adjustment component controls the adjacent fixed blocks to move away from each other. The three external drive wheels located on the three fixed blocks are tightly attached to the inner wall of the pipe. The rotation of the external drive wheels drives the inspection mechanism to inspect the inner wall of the pipe.

[0007] When inspecting the outer coating of a pipeline, the moving mechanism is fitted inside the pipeline. The adjusting component controls the adjacent fixed blocks to move closer and further apart. The three inner drive wheels located on the three adjusting components are tightly attached to the outer wall of the pipeline. The inner drive wheels rotate, driving the inspection mechanism to inspect the outer wall of the pipeline.

[0008] Preferably, the adjusting assembly includes a control rod disposed between adjacent fixed blocks along the relative direction of the adjacent fixed blocks, two extension rods with one end opposite to the other respectively movably passing through the two ends of the control rod, and an adjusting member disposed on the control rod and controlling the two extension rods to move in the length direction of the control rod, wherein the ends of the two extension rods that are far apart from each other are respectively connected to two adjacent fixed blocks.

[0009] Preferably, the adjusting component includes a control screw that passes through a control groove in the length direction of the control rod, and a drive structure that is disposed on the control rod and drives the control screw to rotate. The control screw has a bidirectional screw structure, and its two ends are respectively threaded and passed through one adjacent end of the two extension rods.

[0010] Preferably, the drive structure includes a driven gear fixedly disposed at the middle position of the control screw, a drive gear disposed on the control rod via a motor, and a transmission gear passing through the control rod and located between the drive gear and the driven gear, wherein the transmission gear meshes with the drive gear and the driven gear respectively.

[0011] Preferably, the support assembly includes three parallel second connecting rods located between the two sets of moving components, and three parallel first connecting rods located between the two sets of moving components. The two ends of the first connecting rods are respectively connected to different fixing blocks; the two ends of the second connecting rods are respectively fixedly connected to the middle positions of different control rods.

[0012] Preferably, the testing mechanism includes three adjusting rings respectively disposed at one end of each of the three fixed blocks, an adjusting block slidably disposed in an adjusting groove on the side of the adjusting ring away from the support component, a fixed rod installed on the adjusting block along the direction between the three fixed blocks, two testing devices disposed at both ends of the fixed rod, and an adjusting component disposed on the adjusting ring and controlling the adjusting block to slide in the adjusting groove.

[0013] Preferably, the adjustment assembly includes a fixed rack fixedly disposed on the side of the adjustment ring bar, and an adjustment gear disposed on the fixed rod and driven by a motor, wherein the adjustment gear meshes with the fixed rack.

[0014] The beneficial effects of this utility model are:

[0015] 1. This testing device, through its unique design, can separately inspect the inner and outer coatings of pipes. When inspecting the inner coating, the moving mechanism is inserted inside the pipe, and the adjusting component controls the outer drive wheel to fit tightly against the inner wall of the pipe. The rotation of the outer drive wheel drives the testing mechanism to inspect the inner wall of the pipe. When inspecting the outer coating, the moving mechanism is fitted outside the pipe, and the adjusting component controls the inner drive wheel to fit tightly against the outer wall of the pipe. The rotation of the inner drive wheel drives the testing mechanism to inspect the outer wall of the pipe. This integrated design avoids the cumbersome process of using multiple devices for separate inspections, improves testing efficiency, and reduces costs.

[0016] 2. The adjustable distance assembly is designed to adapt to pipes of different diameters, and when paired with a testing mechanism, it facilitates the inspection of the internal and external coatings of pipes. The control rod, extension rod, and adjusting element in the adjustable distance assembly work together. By controlling the rotation of the lead screw, the two extension rods move along the length of the control rod, thereby adjusting the distance between adjacent fixed blocks. When inspecting pipes of different diameters, simply adjusting the distance element to move the adjacent fixed blocks closer or further apart, ensuring the outer or inner drive wheel is in close contact with the pipe wall, allows for the inspection of pipes of that diameter, greatly improving the versatility and flexibility of the device. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a simplified structural diagram of the internal and external double-sided anti-corrosion pipeline coating testing device proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the internal and external double-sided anti-corrosion pipeline coating detection device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the detection mechanism structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the mobile component of this utility model.

[0022] Figure 5 This is a schematic diagram of the unfolded structure of the mobile component of this utility model.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the adjustable distance component of this utility model.

[0024] In the diagram: 1. First connecting rod; 2. Second connecting rod; 3. Adjusting ring; 4. Adjusting groove; 5. Control rod; 6. Extension rod; 7. Adjusting block; 8. Fixed rod; 9. Detection equipment; 10. Fixed rack; 11. Adjusting gear; 12. Fixed block; 13. Outer drive wheel; 14. Inner drive wheel; 15. Control groove; 16. Control screw; 17. Drive gear; 18. Transmission gear; 19. Driven gear. Detailed Implementation

[0025] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0026] Example 1: Reference Figures 1-6 The device shown is an internal and external anti-corrosion pipeline coating inspection device, including a moving mechanism and an inspection mechanism mounted on the moving mechanism for inspecting the internal and external coatings of the pipeline. The moving mechanism includes two sets of parallel moving components and a support component connecting the two sets of moving components. The moving components include three fixed blocks 12 arranged in a circumferential array, an adjusting component disposed between two adjacent fixed blocks 12, an outer drive wheel 13 disposed one-to-one with the multiple fixed blocks 12 at mutually distant positions, and an inner drive wheel 14 disposed between two adjacent fixed blocks 12 and mounted on the adjusting component. The inspection mechanism is mounted on the fixed blocks 12.

[0027] When inspecting the inner coating of a pipe, the moving mechanism is inserted into the pipe. The distance adjustment component controls the adjacent fixed blocks 12 to move away from each other. The three external drive wheels 13 located on the three fixed blocks 12 are tightly attached to the inner wall of the pipe. The external drive wheels 13 rotate, driving the inspection mechanism to inspect the inner wall of the pipe.

[0028] When inspecting the outer coating of a pipeline, the moving mechanism is fitted inside the pipeline. The adjusting component controls the adjacent fixed blocks 12 to move closer and further apart. The three inner drive wheels 14 located on the three adjusting components are tightly attached to the outer wall of the pipeline. The inner drive wheels 14 rotate, driving the inspection mechanism to inspect the outer wall of the pipeline.

[0029] In this embodiment, when the moving mechanism is placed inside the pipe, the adjusting component is activated to control the three fixed blocks 12 in each group to move away from each other. At this time, both groups of fixed blocks 12 are attached to the inner wall of the pipe, and the six fixed blocks 12 are tightly attached to the inner wall, forming a stable support structure inside the pipe. By rotating the outer drive wheel 13, the detection mechanism can be moved on the inner wall of the pipe, which can cooperate with the detection mechanism to detect the inner wall coating, ensuring that the detection mechanism can perform comprehensive and accurate detection of the coating. When detecting the outer pipe coating, the moving mechanism is fitted onto the pipe. At this time, the adjusting component controls the fixed blocks 12 in each group to move closer to each other, so that the inner drive wheel 14 set on each adjusting component is attached to the outer pipe wall, thereby forming a stable support structure on the outer pipe wall. By rotating the inner drive wheel 14, the detection mechanism can be moved on the pipe, which facilitates the detection of the outer pipe coating.

[0030] This embodiment integrates the inspection of internal and external pipeline coatings, eliminating the need for separate equipment and significantly improving inspection efficiency. Simultaneously, the automated operation and precise distance control of the device ensure stable contact between the inspection mechanism and the pipeline coating, enhancing the accuracy of the inspection data. This reduces the workload and time required for manual inspection, lowering labor costs. Furthermore, the device can perform inspections without disassembling the pipeline, avoiding the additional costs and production disruptions associated with disassembly. The design of the distance adjustment component allows the device to adapt to the inspection needs of pipelines with different diameters, demonstrating strong versatility. Whether on land, at sea, or underground, this device can be used to inspect pipeline coatings, providing strong assurance for the safe operation of pipelines.

[0031] It is understandable that the distance between adjacent fixed blocks 12 in each group can be adjusted in various ways. This embodiment provides the following solution:

[0032] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the adjusting assembly includes a control rod 5 disposed between adjacent fixed blocks 12 along the opposite direction of the adjacent fixed blocks 12, two extension rods 6 with one end opposite to the other respectively movably passing through the two ends of the control rod 5, and an adjusting component disposed on the control rod 5 and controlling the two extension rods 6 to move in the length direction of the control rod 5. The ends of the two extension rods 6 that are far apart from each other are respectively connected to the two adjacent fixed blocks 12.

[0033] In this embodiment, the extension rod 6 is movably inserted through the control rod 5, ensuring that the extension rod 6 moves along the length of the control rod 5. By cooperating with the adjusting device to adjust the distance between each group of adjacent fixed blocks 12, the distance between each group of three fixed blocks 12 can be synchronously controlled, so that the moving mechanism can be installed on the inner or outer pipe of the pipeline, so as to facilitate subsequent detection of the inner and outer coatings of the pipeline by the detection mechanism.

[0034] It is understood that the extension rod 6 can be moved along the length of the control rod 5 in various ways. This embodiment provides the following solution:

[0035] like Figure 6 As shown, the adjusting component includes a control screw 16 that passes through a control slot 15 opened in the longitudinal direction of the control rod 5, and a drive structure that is set on the control rod 5 and drives the control screw 16 to rotate. The control screw 16 has a bidirectional screw structure, and its two ends are respectively threaded and passed through one adjacent end of the two extension rods 6.

[0036] In this embodiment, the control screw 16, which has a bidirectional screw structure, is driven by the drive structure to rotate. This drives the two extension rods 6, which are connected by threads and sleeved on both ends of the control screw 16, to move away from or towards each other synchronously. This facilitates the adjustment of the distance between each set of fixed blocks 12 and ensures that the control rod 5 is located in the middle position between adjacent fixed blocks 12.

[0037] It is understandable that the rotation of the lead screw 16 can be controlled in various ways. This embodiment provides the following solution:

[0038] like Figure 6 As shown, the drive structure includes a driven gear 19 fixedly mounted on the middle of the control screw 16, a drive gear 17 mounted on the control lever 5 via a motor, and a transmission gear 18 passing through the control lever 5 and located between the drive gear 17 and the driven gear 19. The transmission gear 18 meshes with the drive gear 17 and the driven gear 19 respectively.

[0039] In this embodiment, the motor controls the drive gear 17 to rotate, which in turn drives the transmission gear 18 to rotate, thereby driving the driven gear 19 to rotate. This allows for convenient adjustment and control of the lead screw 16 to rotate.

[0040] like Figure 1 and Figure 2 As shown, the support assembly includes three parallel second connecting rods 2 located between two sets of moving components, and three parallel first connecting rods 1 located between two sets of moving components. The two ends of the first connecting rods 1 are respectively connected to different fixing blocks 12; the two ends of the second connecting rods 2 are respectively fixedly connected to the middle position of different control rods 5.

[0041] In this embodiment, the positions of the two sets of corresponding fixed blocks 12 are fixed and the positions of the control rods 5 between each set of corresponding fixed blocks 12 are fixed by the first connecting rod 1 and the second connecting rod 2. The first connecting rod 1 and the second connecting rod 2 are equipped with power supply, circuit board and detection unit.

[0042] Example 2: In Example 1 above, the detection mechanism can only detect the inner and outer coatings of the pipeline along the moving direction of the moving mechanism. This example provides the following solution.

[0043] like Figures 1-3 As shown, the testing mechanism includes three adjusting rings 3 respectively set at one end of each of the three fixed blocks 12, an adjusting block 7 slidably set in an adjusting groove 4 on the side of the adjusting ring 3 away from the support component, a fixed rod 8 installed on the adjusting block 7 along the direction between the three fixed blocks 12, two testing devices 9 set at both ends of the fixed rod 8, and an adjusting component set on the adjusting ring 3 to control the adjusting block 7 to slide in the adjusting groove 4.

[0044] In this embodiment, when the moving mechanism drives the adjusting ring 3 to move, the adjusting component drives the adjusting block 7 to slide in the adjusting groove 4, which can drive the detection device 9 located on the adjusting block 7 to detect the pipe coating. The two detection devices 9 located at both ends of each fixed rod 8 have opposite ends as the detection ends. When detecting the inner pipe coating, the detection device 9 located away from the three adjusting rings 3 detects the inner pipe coating. When detecting the outer pipe coating, the detection device 9 located close to the three adjusting rings 3 detects the outer pipe coating.

[0045] It is understandable that the adjusting block 7 can slide within the adjusting groove 4 in various ways. This embodiment provides the following solution:

[0046] like Figure 3 As shown, the adjustment assembly includes a fixed rack 10 fixedly mounted on the side of the adjustment ring 3 and an adjustment gear 11 mounted on the fixed rod 8 and driven by a motor. The adjustment gear 11 meshes with the fixed rack 10.

[0047] In this embodiment, the adjusting gear 11 is driven by a motor to rotate. At this time, the adjusting gear 11 meshes with the fixed rack 10, which facilitates the movement of the detection device 9 located on the fixed rod 8 on the adjusting ring 3. This allows the detection device 9 to move around the adjusting ring 3 while the moving mechanism is moving, thus facilitating comprehensive inspection of the coating inside and outside the pipeline.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the coating of a pipe from the inside and outside, comprising a moving mechanism and a detecting mechanism arranged on the moving mechanism and detecting the coating of the pipe from the inside and outside, characterized in that, The moving mechanism includes two sets of parallel moving components and a support component connecting the two sets of moving components; the moving components include three fixed blocks (12) arranged in a circular array, an adjusting component disposed between two adjacent fixed blocks (12), an outer drive wheel (13) disposed one-to-one with each other on the multiple fixed blocks (12) at positions far apart from each other, and an inner drive wheel (14) disposed between two adjacent fixed blocks (12) and mounted on the adjusting component; a detection mechanism is mounted on the fixed block (12); When inspecting the inner coating of the pipe, the moving mechanism is inserted into the pipe. The distance adjustment component controls the adjacent fixed blocks (12) to move away from each other. The three external drive wheels (13) located on the three fixed blocks (12) are tightly attached to the inner wall of the pipe. The external drive wheels (13) rotate, driving the inspection mechanism to inspect the inner wall of the pipe. When inspecting the outer coating of the pipeline, the moving mechanism is fitted inside the pipeline. The adjusting component controls the adjacent fixed blocks (12) to move closer to each other. The three inner drive wheels (14) located on the three adjusting components are tightly attached to the outer wall of the pipeline. The inner drive wheels (14) rotate, driving the inspection mechanism to inspect the outer wall of the pipeline.

2. The internal and external double-sided anti-corrosion pipeline coating testing device according to claim 1, characterized in that: The adjustable distance assembly includes a control rod (5) disposed between adjacent fixed blocks (12) in the opposite direction of the adjacent fixed blocks (12), two extension rods (6) with their opposite ends respectively movably passing through the two ends of the control rod (5), and an adjustable distance component disposed on the control rod (5) and controlling the two extension rods (6) to move in the length direction of the control rod (5). The ends of the two extension rods (6) that are far apart from each other are respectively connected to two adjacent fixed blocks (12).

3. The internal and external double-sided anti-corrosion pipeline coating testing device according to claim 2, characterized in that: The adjusting component includes a control screw (16) that passes through a control groove (15) in the length direction of the control rod (5), and a drive structure that is set on the body of the control rod (5) and drives the control screw (16) to rotate. The control screw (16) has a bidirectional screw structure, and its two ends are respectively threaded and passed through the adjacent ends of the two extension rods (6).

4. The internal and external double-sided anti-corrosion pipeline coating testing device according to claim 3, characterized in that: The drive structure includes a driven gear (19) fixedly mounted on the middle of the control screw (16), a drive gear (17) mounted on the control lever (5) via a motor, and a transmission gear (18) passing through the control lever (5) and located between the drive gear (17) and the driven gear (19). The transmission gear (18) meshes with the drive gear (17) and the driven gear (19) respectively.

5. The internal and external double-sided anti-corrosion pipeline coating testing device according to claim 2, characterized in that: The support assembly includes three parallel second connecting rods (2) located between two sets of moving components, and three parallel first connecting rods (1) located between two sets of moving components. The two ends of the first connecting rods (1) are respectively connected to different fixing blocks (12); the two ends of the second connecting rods (2) are respectively fixedly connected to the middle position of different control rods (5).

6. The internal and external double-sided anti-corrosion pipeline coating testing device according to any one of claims 1 to 5, characterized in that: The testing mechanism includes three adjusting rings (3) respectively set at one end of each of the three fixed blocks (12), an adjusting block (7) slidably set in the adjusting groove (4) on the side of the adjusting ring (3) away from the support component, a fixed rod (8) installed on the adjusting block (7) along the direction between the three fixed blocks (12), two testing devices (9) set at both ends of the fixed rod (8), and an adjusting component set on the adjusting ring (3) and controlling the adjusting block (7) to slide in the adjusting groove (4).

7. The internal and external double-sided anti-corrosion pipeline coating testing device according to claim 6, characterized in that: The adjustment assembly includes a fixed rack (10) fixedly mounted on the side of the adjustment ring (3) and an adjustment gear (11) mounted on the fixed rod (8) and driven by a motor. The adjustment gear (11) meshes with the fixed rack (10).

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