A pipeline quality inspection device
By employing a multi-point detection design driven by hydraulic push rods and motors, the problem of poor adaptability of existing devices to different pipe diameters is solved, achieving stable clamping and flexible detection of pipelines, and ensuring the accuracy and comprehensiveness of detection data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ZHONGTE CHEM ENG POWER EQUIP CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-26
AI Technical Summary
Existing pipeline inspection devices have poor adaptability to different pipe diameters and insufficient stability of the fixed structure, which causes the pipeline to shake during the inspection process and affects the accuracy of the inspection data.
The system uses a hydraulic push rod to drive the external support claws to clamp the inner wall of the pipe. Combined with the design of a motor-driven rotation and a threaded rod moving block, it enables multi-point detection. The ring array of external support claws and detection wheels can adapt to different pipe diameters, ensuring flexibility in fixing and detection.
It achieves stable clamping of pipes of different diameters, avoids shaking, ensures the accuracy and comprehensiveness of test data, supports pipe rotation and axial position adjustment, and improves the flexibility and comprehensiveness of testing.
Smart Images
Figure CN224285972U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of pipeline quality inspection, and in particular to a pipeline quality inspection device. Background Technology
[0002] Pipeline quality inspection refers to the comprehensive inspection and evaluation of pipeline materials, structure, performance, and operating status through a series of technical means and methods to ensure that the pipeline operates safely, reliably, and efficiently within its design service life. It is a crucial link in pipeline engineering construction and maintenance management and is widely used in pipeline systems in many fields such as petroleum, natural gas, water supply and drainage, and chemical industry.
[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In the prior art, traditional testing devices have a relatively simple method of fixing pipes, which is difficult to adapt to pipes of different diameters, and the stability of the fixing structure is insufficient, which can easily lead to deviations in the test data due to pipe shaking during the testing process. Utility Model Content
[0004] In order to enable the device to be adapted to pipe fixing of different diameters, this application provides a pipe quality inspection device.
[0005] The pipeline quality inspection device provided in this application adopts the following technical solution: it includes a base plate, a fixing plate is fixedly connected to the top of the base plate, and a moving groove is opened on the top of the base plate;
[0006] A fixed cylinder is provided above the moving groove. A hydraulic push rod is fixedly connected to the inner wall of the fixed cylinder. A push rod is fixedly connected to the left output end of the hydraulic push rod. A push plate is fixedly connected to the left side of the push rod. A rotating groove is opened on the outer wall of the push plate. A rotating rod is rotatably connected to the inner wall of the rotating groove. An external support claw is rotatably connected to the bottom of the rotating rod.
[0007] Optionally, a motor is fixedly connected to the right side of the fixed plate, and a rotating column is fixedly connected to the left output end of the motor via a coupling. A rotating disk is fixedly connected to the left side of the rotating column.
[0008] Optionally, the left side of the rotating disk is fixedly connected to the right side of the fixed cylinder, a connecting plate is fixedly connected to the outer wall of the fixed cylinder, a slot is opened at the bottom of the connecting plate, a rotating rod two is rotatably connected to the inner wall of the slot, and the bottom of the rotating rod two is rotatably connected to the top of the outer support claw.
[0009] Optionally, the number of rotating rods 2 is several, and the several rotating rods 2 are arranged in a circular array; the number of external support claws is several, and the several external support claws are arranged in a circular array.
[0010] Optionally, a second motor is fixedly connected to the right side of the base plate, and a threaded rod is fixedly connected to the left output end of the second motor via a coupling. A moving block is threadedly connected to the outer wall of the threaded rod, and the outer wall of the moving block is slidably connected to the inner wall of the moving groove.
[0011] Optionally, a movable ring is fixedly connected to the top of the movable block, a telescopic cylinder is fixedly connected to the inner wall of the movable ring, a spring is sleeved on the outer wall of the telescopic cylinder, and a detection wheel is fixedly connected to the top of the telescopic cylinder.
[0012] Optionally, the bottom of the spring is fixedly connected to the inner wall of the movable ring, the top of the spring is fixedly connected to the bottom of the detection wheel, and the number of detection wheels is several, which are arranged in a circular array.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. This utility model is equipped with components such as a hydraulic push rod and external support claws. When the hydraulic push rod pushes the push rod to the left, the external support claws can be opened along the rotating rod. Multiple external support claws arranged in a ring array evenly press against the inner wall of the pipe to form a stable clamping force. It can adapt to pipes of different diameters and has a firm fixing effect, avoiding pipe shaking during the inspection process. At the same time, the connection design between the fixed cylinder and the rotating disk can be driven by a motor to rotate the rotating column, so that the pipe can be rotated for inspection without repeated manual rotation.
[0015] 2. This utility model incorporates components such as a second motor, a threaded rod, and a moving block. The second motor drives the threaded rod to rotate, causing the moving block to slide along the moving groove. This allows the detection wheel on the moving ring to move synchronously with the moving block. Through the elastic cooperation of the spring and the telescopic cylinder, the detection wheel can always remain in contact with the outer wall of the pipe. At the same time, the user can flexibly adjust the position of the detection wheel in the axial direction of the pipe according to their needs. The multiple detection wheels arranged in a ring array can detect the pipe while it is rotating. Combined with the moving function of the moving block, it can realize free detection of multiple points on the pipe, ensuring the comprehensiveness and flexibility of the detection range. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the rotating disk in an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the moving ring structure in an embodiment of this application;
[0019] Figure 4 This is an embodiment of the present application. Figure 3 A magnified structural diagram of A in the diagram.
[0020] Reference numerals: 1. Base plate; 11. Fixed plate; 12. Moving groove; 2. Motor 1; 21. Rotating column; 211. Rotating disk; 22. Fixed cylinder; 23. Hydraulic push rod; 231. Push rod; 24. Push plate; 241. Rotating rod 1; 25. External support gripper; 26. Connecting plate; 261. Rotating rod 2; 3. Motor 2; 31. Threaded rod; 32. Moving block; 33. Moving ring; 34. Telescopic cylinder; 341. Spring; 35. Detection wheel. Detailed Implementation
[0021] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0022] This application discloses a pipeline quality inspection device. For example... Figure 1 , Figure 2 As shown, it includes a base plate 1, a fixed plate 11 is fixedly connected to the top of the base plate 1, and a moving groove 12 is provided on the top of the base plate 1.
[0023] In this embodiment, a fixed cylinder 22 is provided above the moving groove 12. A hydraulic push rod 23 is fixedly connected to the inner wall of the fixed cylinder 22. A push rod 231 is fixedly connected to the left output end of the hydraulic push rod 23. A push plate 24 is fixedly connected to the left side of the push rod 231. A rotating groove is opened on the outer wall of the push plate 24. A rotating rod 241 is rotatably connected to the inner wall of the rotating groove. An outer support claw 25 is rotatably connected to the bottom of the rotating rod 241. The outer wall of the outer support claw 25 is coated with a rubber coating, which increases the friction and protects the inner wall of the pipe.
[0024] Please see Figure 3 As shown, a second motor 3 is fixedly connected to the right side of the base plate 1. A threaded rod 31 is fixedly connected to the left output end of the second motor 3 via a coupling. A moving block 32 is threadedly connected to the outer wall of the threaded rod 31. The outer wall of the moving block 32 is slidably connected to the inner wall of the moving groove 12. The moving block 32 is restricted by the moving groove 12 to prevent it from shaking or misaligning during movement.
[0025] Please see Figure 2 As shown, a motor 2 is fixedly connected to the right side of the fixed plate 11, and a rotating column 21 is fixedly connected to the left output end of the motor 2 via a coupling. A rotating disk 211 is fixedly connected to the left side of the rotating column 21.
[0026] Please see Figure 4As shown, a moving ring 33 is fixedly connected to the top of the moving block 32, a telescopic cylinder 34 is fixedly connected to the inner wall of the moving ring 33, a spring 341 is sleeved on the outer wall of the telescopic cylinder 34, and a detection wheel 35 is fixedly connected to the top of the telescopic cylinder 34. The arrangement of several ring-shaped detection wheels 35 can detect the outer wall of the pipeline when it rotates.
[0027] Please see Figure 2 As shown, the left side of the rotating disk 211 is fixedly connected to the right side of the fixed cylinder 22. A connecting plate 26 is fixedly connected to the outer wall of the fixed cylinder 22. A slot is opened at the bottom of the connecting plate 26. A rotating rod 261 is rotatably connected to the inner wall of the slot. The bottom of the rotating rod 261 is rotatably connected to the top of the outer support claw 25.
[0028] Please see Figure 4 As shown, the bottom of the spring 341 is fixedly connected to the inner wall of the moving ring 33, and the top of the spring 341 is fixedly connected to the bottom of the detection wheel 35. The spring 341 is set so that the detection wheel 35 is always in contact with the outer wall of the pipe. There are several detection wheels 35, and the several detection wheels 35 are arranged in a ring array.
[0029] Please see Figure 2 As shown, there are several rotating rods 261 arranged in a circular array, and there are several external support claws 25 arranged in a circular array.
[0030] The implementation principle of a pipeline quality inspection device according to an embodiment of this application is as follows: The hydraulic push rod 23 is activated, and its left output end pushes the push rod 231, causing the push plate 24 to drive the rotating rod 241 to rotate, thereby driving the outer support claws 25 to open outwards. At this time, the outer support claws 25, distributed in a ring array, synchronously press against the inner wall of the pipeline. The clamping force is maintained by the pressure of the hydraulic system, thus fixing the pipeline. If rotational inspection is required, the motor 2 drives the rotating column 21 to rotate, and the rotating disk 211 rotates accordingly, causing the fixed cylinder 22 and the outer support claws 25 to rotate around the pipeline axis, facilitating rotational inspection. When the inspection position needs to be adjusted, the motor 3 is started. The coupling drives the threaded rod 31 to rotate, and the threaded moving block 32 slides along the axial direction of the threaded rod 31 in the moving groove 12. The moving ring 33 at the top of the moving block 32 moves accordingly, driving the telescopic cylinder 34 and the detection wheel 35 to move synchronously. During this process, the spring 341 is sleeved on the outside of the telescopic cylinder 34, with its bottom connected to the moving ring 33 and its top connected to the detection wheel 35. It can adapt to the undulations of the pipe surface through elastic deformation, ensuring that the detection wheel 35 is always in close contact with the outer wall of the pipe. According to the detection requirements, the user can precisely adjust the position of the detection wheel 35 on the pipe by controlling the forward and reverse rotation of the motor 32 to realize the detection operation at any position.
[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A pipeline quality inspection device, comprising a base plate (1), characterized in that: A fixing plate (11) is fixedly connected to the top of the base plate (1), and a moving groove (12) is provided on the top of the base plate (1). A fixed cylinder (22) is provided above the moving groove (12). A hydraulic push rod (23) is fixedly connected to the inner wall of the fixed cylinder (22). A push rod (231) is fixedly connected to the left output end of the hydraulic push rod (23). A push plate (24) is fixedly connected to the left side of the push rod (231). A rotating groove is provided on the outer wall of the push plate (24). A rotating rod (241) is rotatably connected to the inner wall of the rotating groove. An external support claw (25) is rotatably connected to the bottom of the rotating rod (241).
2. The pipeline quality inspection device according to claim 1, characterized in that: The right side of the fixed plate (11) is fixedly connected to a motor (2), and the left output end of the motor (2) is fixedly connected to a rotating column (21) via a coupling. The left side of the rotating column (21) is fixedly connected to a rotating disk (211).
3. The pipeline quality inspection device according to claim 2, characterized in that: The left side of the rotating disk (211) is fixedly connected to the right side of the fixed cylinder (22). A connecting plate (26) is fixedly connected to the outer wall of the fixed cylinder (22). A slot is opened at the bottom of the connecting plate (26). A rotating rod (261) is rotatably connected to the inner wall of the slot. The bottom of the rotating rod (261) is rotatably connected to the top of the outer support claw (25).
4. The pipeline quality inspection device according to claim 3, characterized in that: The number of rotating rods (261) is several, and the several rotating rods (261) are arranged in a ring array. The number of external support claws (25) is several, and the several external support claws (25) are arranged in a ring array.
5. A pipeline quality inspection device according to claim 1, characterized in that: The base plate (1) is fixedly connected to the right side of the motor 2 (3), and the output end of the motor 2 (3) is fixedly connected to the threaded rod (31) through the coupling. The outer wall of the threaded rod (31) is threadedly connected to the moving block (32), and the outer wall of the moving block (32) is slidably connected to the inner wall of the moving groove (12).
6. A pipeline quality inspection device according to claim 5, characterized in that: The top of the movable block (32) is fixedly connected to a movable ring (33), the inner wall of the movable ring (33) is fixedly connected to a telescopic cylinder (34), the outer wall of the telescopic cylinder (34) is fitted with a spring (341), and the top of the telescopic cylinder (34) is fixedly connected to a detection wheel (35).
7. A pipeline quality inspection device according to claim 6, characterized in that: The bottom of the spring (341) is fixedly connected to the inner wall of the moving ring (33), and the top of the spring (341) is fixedly connected to the bottom of the detection wheel (35). The number of detection wheels (35) is several, and the several detection wheels (35) are arranged in a ring array.