Pressure pipeline detecting and positioning mechanism

Abstract

The utility model relates to the technical field of pipeline detection, and particularly discloses a pressure pipeline detection positioning mechanism which comprises a supporting frame, clamping mechanisms used for clamping a pressure pipeline are arranged on the supporting frame, and the two clamping mechanisms are located on the two sides of the pressure pipeline respectively. Fixing blocks are arranged on the two sets of clamping mechanisms, a tension spring is arranged between the two sets of fixing blocks, and the two ends of the tension spring are fixedly connected to the two sets of fixing blocks correspondingly; a liftable detection mechanism is arranged on the supporting frame and used for detecting the pressure pipeline. The technical problems that the coupling agent still needs to be smeared manually, and the coupling agent at a part of detection positions is relatively inconvenient to smear, so that the efficiency of detecting the pressure pipeline is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, and specifically discloses a pressure pipeline detection and positioning mechanism. Background Art

[0002] Due to the long-term operation under high pressure, and the pressure pipelines located outdoors for a long time are also subject to external corrosion. To avoid safety accidents, it is necessary to regularly inspect them. During the inspection, a comprehensive inspection of the pipeline needs to be carried out.

[0003] For example, the utility model with the patent number CN202321040686.8 discloses a mobile pressure pipeline leak point positioning detector, which includes a connecting ring, a rotating ring rotatably connected inside the connecting ring, a driving component installed on the connecting ring for driving the rotating ring to rotate, a sliding seat slidably connected to the connecting ring, connected to the rotating ring and also connected to the detector main body, and a plurality of moving components arranged on the connecting ring for driving the connecting ring to move on the pipeline. When the existing pressure pipeline detection mechanism detects a pressure pipeline, it can drive the detection device to quickly move on the surface of the pressure pipeline. When the detection device detects the pressure, it is necessary to apply a coupling agent between the detection device and the pressure pipeline. The coupling agent still needs to be manually applied, and it is relatively inconvenient to apply the coupling agent at some detection positions, thus reducing the efficiency of detecting the pressure pipeline. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a pressure pipeline detection and positioning mechanism to solve the technical problem that the coupling agent still needs to be manually applied, and it is relatively inconvenient to apply the coupling agent at some detection positions, thus reducing the efficiency of detecting the pressure pipeline.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A pressure pipeline detection and positioning mechanism includes a support frame, a clamping mechanism for clamping the pressure pipeline is arranged on the support frame, and two groups of the clamping mechanisms are respectively located on both sides of the pressure pipeline; fixing blocks are arranged on both groups of the clamping mechanisms, a tension spring is arranged between the two fixing blocks, and both ends of the tension spring are respectively fixedly connected to the two fixing blocks; a liftable detection mechanism is arranged on the support frame, and the detection mechanism is used for detecting the pressure pipeline. The pressure pipeline is clamped by the clamping mechanism, the detection mechanism is fixed to the pressure pipeline, and then the position of the detection mechanism is adjusted. The pressure pipeline is detected by the detection mechanism, and at the same time, the detection mechanism can automatically apply the coupling agent between the ultrasonic probe and the pressure pipeline, without the need for staff to manually apply the coupling agent, thereby improving the efficiency of detecting the pressure pipeline.

[0006] Further, the clamping mechanism includes a first connecting rod. One end of the first connecting rod is hinged to the support frame, and the other end of the first connecting rod is hinged with a clamping block. The clamping block is in a fan-shaped ring shape and fits perfectly with the outer wall of the pressure pipeline. The clamping mechanism fits the clamping block with the pressure pipeline and cooperates with the tension spring to achieve the purpose of clamping the pressure pipeline, and can quickly fix the detection mechanism on the pressure pipeline, improving the efficiency of detecting the pressure pipeline.

[0007] Further, the detection mechanism includes a fitting sleeve, in which an ultrasonic probe is clamped. A display device is connected to the ultrasonic probe; a box body is arranged on the fitting sleeve, and a coupling agent is placed in the box body. A micro negative pressure pump and a power supply are arranged on the box body. The micro negative pressure pump is connected to the power supply. The air extraction port of the micro negative pressure pump is located outside the box body, and the exhaust port is located inside the box body. The coupling agent is extruded between the ultrasonic probe and the pressure pipeline by the micro negative pressure pump, and then the pressure pipeline is detected by ultrasonic waves.

[0008] Further, a fixing sleeve is arranged at the lower end of the box body. The fixing sleeve fits with the pressure pipeline. A fitting groove is opened at the lower end of the box body. The fixing sleeve is communicated with the box body through the fitting groove. A valve assembly is arranged between the fixing sleeve and the box body; the ultrasonic probe is clamped on the fixing sleeve. The fixing sleeve is used to gather the coupling agent, so that the space between the ultrasonic probe and the pressure pipeline is filled with the coupling agent, ensuring that the coupling agent can play a role.

[0009] Further, the valve assembly includes a fixing box, in which a blocking block is slidably clamped. One end of the blocking block is clamped in the fitting groove; two groups of second springs are arranged in the fixing box, and the two ends of the second springs are respectively in contact with the blocking block and the bottom end of the fixing box. The valve assembly can automatically separate the box body from the fitting sleeve, avoid excessive coupling agent in the fitting sleeve, thus causing waste, and at the same time play a sealing role for the box body, facilitating the movement of the coupling agent.

[0010] Further, a threaded rod is inserted into the support frame. A hand wheel is arranged at one end of the threaded rod; a connecting sleeve is sleeved on the threaded rod. A second connecting rod is arranged on the connecting sleeve, and the second connecting rod is fixedly connected with the fitting sleeve. The second connecting rod is slidably clamped on the support frame. By cooperating the threaded rod with the connecting sleeve, the height of the detection mechanism can be adjusted, thereby increasing the applicable range of detecting the pressure pipeline.

[0011] Further, a first limiting block is provided at one end of the first connecting rod, a first spring is provided in the middle section of the first connecting rod, a second limiting block is provided at the other end of the first spring, and the second limiting block is in contact with the clamping block; both ends of the first spring are in contact with the first connecting rod and the second limiting block respectively. The first limiting block and the second limiting block play a role in limiting the clamping block to prevent the clamping block from rotating too much, which is inconvenient for the staff to move.

[0012] The working principle and beneficial effects of this solution are as follows:

[0013] During use, the staff fixes the detection mechanism and the support frame on the pressure pipeline through the clamping mechanism, and then rotates the handwheel to drive the threaded rod to rotate. The threaded rod drives the connecting sleeve and the second connecting rod to move through the thread, and the second connecting rod drives the detection mechanism to move until the detection mechanism moves to a suitable position. The staff uses the detection mechanism to detect the pressure pipeline. When the detection of one place on the pressure pipeline is completed, the detection mechanism is separated from the pressure pipeline by controlling the handwheel, and then the support frame is rotated to drive the detection mechanism and the clamping mechanism to rotate around the pressure pipeline. After moving the detection mechanism to a suitable position, stop moving, and then use the detection mechanism to detect the pressure pipeline again. When the detection of one week of the pressure pipeline is completed, the clamping mechanism is separated from the pressure pipeline, and then after moving the detection mechanism to a suitable position, the detection mechanism is fixed through the clamping mechanism to detect the pressure pipeline until the detection of the entire section of the pressure pipeline is completed; it can quickly fix the pressure pipeline detection positioning mechanism on the pressure pipeline, and at the same time the detection mechanism can quickly detect the pressure pipeline, without the staff squeezing the coupling agent between the ultrasonic probe and the pressure pipeline, thus saving time and improving the efficiency of detecting the pressure pipeline.

[0014] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram when the embodiment is in use;

[0016] Figure 2 It is an exploded view of the embodiment;

[0017] Figure 3 It is a structural schematic diagram of the detection mechanism in the embodiment;

[0018] Figure 4 It is a structural schematic diagram of the embodiment to be used.

[0019] The labels in the drawings are as follows: pressure pipeline 1, support frame 2, first connecting rod 3, clamping block 4, first limiting block 5, first spring 6, second limiting block 7, fixed block 8, tension spring 9, threaded rod 10, handwheel 11, connecting sleeve 12, second connecting rod 13, mating sleeve 14, ultrasonic probe 15, box body 16, micro negative pressure pump 17, power supply 18, fixed sleeve 19, fixed box 20, second spring 21, stop block 22, mating groove 23, sliding groove 24, handle 25. Specific embodiments

[0020] The following is a further detailed description through specific embodiments:

[0021] Embodiment

[0022] As Figures 1 to 4 shown, a pressure pipeline detection and positioning mechanism is disclosed, including a support frame 2. Handles 25 are provided on both sides of the support frame 2. Two sets of clamping mechanisms are provided on the support frame 2, and the two sets of clamping mechanisms are respectively located on both sides of the pressure pipeline 1. The clamping mechanism includes a first connecting rod 3. The first connecting rod 3 is arc-shaped. One end of the first connecting rod 3 is hinged to the support frame 2, and the other end is hinged with a clamping block 4. The clamping block 4 is fan-shaped, and the arc of the clamping block 4 is the same as the outer wall arc of the pressure pipeline 1. The clamping block 4 is in contact with the pressure pipeline 1; Fixed blocks 8 are provided on both sets of first connecting rods 3, and a tension spring 9 is provided between the two sets of fixed blocks 8. Two ends of the tension spring 9 are respectively fixedly connected to the two sets of fixed blocks 8. A first limiting block 5 is provided at one end of the first connecting rod 3, and the first limiting block 5 is located at the end close to the clamping block 4. A first spring 6 is provided in the middle section of the first connecting rod 3. One end of the first spring 6 is fixedly connected to the first connecting rod 3, and the other end of the first spring 6 is provided with a second limiting block 7, as Figure 1 and Figure 2 shown.

[0023] An adjustable detection mechanism is provided on the support seat. The detection mechanism includes a mating sleeve 14. An ultrasonic probe 15 is clamped on the mating sleeve 14. A display device is connected to the ultrasonic probe 15. A box body 16 is fixedly connected to the mating sleeve 14. A coupling agent is placed in the box body 16. A micro negative pressure pump 17 is provided on the box body 16. The micro negative pressure pump 17 is fixedly connected to the box body 16 by bolts. A power supply 18 is connected to the micro negative pressure pump 17. The power supply 18 is fixedly connected to the box body 16. The air extraction port of the micro negative pressure pump 17 is located outside the box body 16, and the exhaust port is located inside the box body 16. A fixed sleeve 19 is provided at the bottom end of the box body 16. The bottom surface of the fixed sleeve 19 is open, and the opening of the fixed sleeve 19 faces the pressure pipeline 1, and the fixed sleeve 19 is in complete contact with the outer wall of the pressure pipeline 1. One end of the ultrasonic probe 15 is inserted into the fixed sleeve 19. A valve assembly is provided between the fixed sleeve 19 and the box body 16, as Figure 3 shown.

[0024] The valve assembly includes a fixed box 20 which is fixedly connected to a fixed sleeve 19. The fixed box 20 is not in contact with the box body 16. A stop block 22 is slidably clamped in the fixed box 20. Two groups of second springs 21 are arranged in the fixed box 20. The two ends of the second springs 21 are respectively in contact with the stop block 22 and the bottom wall of the fixed box 20. A mating groove 23 is formed in the box body 16, and the stop block 22 is clamped in the mating groove 23, as Figure 3 shown.

[0025] A threaded rod 10 is penetrated through a support frame 2. A hand wheel 11 is arranged on the threaded rod 10. The support frame 2 and the threaded rod 10 are not threadedly connected. A connecting sleeve 12 is sleeved on the threaded rod 10. The connecting sleeve 12 is threadedly connected to the threaded rod 10. The connecting sleeve 12 is slidably clamped in the support frame 2. A second connecting rod 13 is arranged on the connecting sleeve 12. A sliding groove 24 is formed in the support frame 2, and the second connecting rod 13 is slidably clamped in the sliding groove 24, as Figure 2 shown.

[0026] The state of the pressure pipeline 1 detection and positioning mechanism when not in use is as Figure 4 shown. The clamping block 4 is in contact with the first limit block 5 and not in contact with the second limit block 7. The first limit block 5 is used to prevent the clamping block 4 from continuing to rotate around the hinge seat, which is inconvenient for the staff to use the clamping mechanism to fix the detection and positioning device on the pressure pipeline 1. At the same time, the tension spring 9 is in the initial state, and the included angle between the two groups of first connecting rods 3 is the smallest at this time; the state when in use is as Figure 1 shown.

[0027] The ultrasonic detector 15, the display device, the micro negative pressure pump 17 and the power supply 18 are all common technical means for those skilled in the art, and their structures, connection methods and usage methods are all well-known technologies for those skilled in the art.

[0028] During specific implementation

[0029] During use, the staff first hold the handle 25, move the support frame 2 and the clamping mechanism, and then move the two groups of clamping blocks 4 to the pressure pipeline 1. Press the support frame 2 forcefully to drive the first connecting rod 3 and the clamping block 4 to move towards the center of the pressure pipeline 1. The clamping block 4 rotates around the hinge seat until the two groups of clamping blocks 4 are in close contact with the outer wall of the pressure pipeline 1. At this time, the clamping block 4 drives the first connecting rod 3 to rotate around the support frame 2, the tension spring 9 elongates, and the included angle between the two groups of first connecting rods 3 increases. When the clamping block 4 rotates around the hinge seat, the clamping block 4 first separates from the second limit block 7, then contacts the second limit block 7, and then drives the second limit block 7 to move, compressing the first spring 6. At this time, the clamping mechanism is fixedly connected to the pressure pipeline 1. Then rotate the handwheel 11, the handwheel 11 drives the threaded rod 10 to rotate in the support frame 2, the threaded rod 10 drives the connecting sleeve 12 to move through the thread, the connecting sleeve 12 drives the second connecting rod 13 to slide in the sliding groove 24, and the second connecting rod 13 drives the detection mechanism to move until the detection mechanism moves to a suitable position. The pressure pipeline 1 is detected by the detection mechanism, and the detection and positioning mechanism of the pressure pipeline 1 can be quickly fixed on the pressure pipeline 1. The pressure pipeline 1 is detected by the detection mechanism, improving the efficiency of detecting the pressure pipeline 1.

[0030] When detecting the pressure pipeline 1 by the detection mechanism, first ensure that the fixed sleeve 19 is in close contact with the outer wall of the pressure pipeline 1, and then start the micro negative pressure pump 17. At this time, a negative pressure is formed at the air extraction port of the micro negative pressure pump 17, and a slightly positive pressure is formed at the exhaust port. By injecting positive pressure air into the box body 16, pressure is applied to the block 22. The block 22 slides in the mating groove 23 and the fixed box 20, driving the spring to compress until the block 22 completely separates from the mating groove 23. At this time, the block 22 completely moves into the fixed box 20. At this time, the box body 16 is communicated with the fixed sleeve 19, and the coupling agent moves from the box body 16 into the fixed sleeve 19 through the mating groove 23. After a period of time, the micro negative pressure pump 17 is turned off, and the coupling agent moves from the box body 16 into the fixed sleeve 19, which can reduce the pressure of the coupling agent in the box body 16 on the block 22. When a certain mass of coupling agent enters the fixed sleeve 19, the spring returns to its initial state, the spring elongates, driving the block 22 to move in the fixed box 20 until the block 22 is clamped in the sliding groove 24. At this time, the box body 16 and the fixed sleeve 19 are separated, and the coupling agent located in the fixed sleeve 19 plays a role, which can improve the efficiency and accuracy of ultrasonic detection, and at the same time can reduce the friction between the ultrasonic probe 15 and the surface of the pressure pipeline 1, protecting the ultrasonic probe 15 from damage. Then the staff detect the pressure pipeline 1 through the ultrasonic probe 15. The staff can intuitively see whether there are defects in the pressure pipeline through the display device. When detecting the pressure pipeline 1, there is no need for the staff to manually apply the coupling agent, which can ensure that the coupling agent can be quickly applied at any position of the pressure pipeline 1, thereby improving the efficiency of detecting the pressure pipeline 1.

[0031] When the detection of one location of the pressure pipeline 1 is completed, the staff rotates the handwheel 11. The handwheel 11 drives the threaded rod 10 to rotate, thereby driving the detection mechanism to rise, so that the fixed sleeve 19 is separated from the outer wall of the pressure pipeline 1. Then, hold the handle 25 and rotate the support frame 2 around the center of the pressure pipeline 1 as the center of the circle, driving the two clamping blocks 4 to rotate on the pressure pipeline 1, and at the same time driving the detection mechanism to perform a circular motion around the pressure pipeline 1. When the detection mechanism moves to a suitable position, stop moving. Then rotate the handwheel 11 to make the fixed sleeve 19 contact the pressure pipeline 1, and the staff detects the pressure pipeline 1. Repeat this process, and the staff can quickly detect one week of the pipeline, thus ensuring the inspection efficiency.

[0032] When the staff completes the detection of one week of the pressure pipeline 1, the staff drives the support frame 2 to move by pulling the handle 25. The support frame 2 drives the first connecting rod 3 and the clamping block 4 to move, driving the clamping block 4 to rotate around the first connecting rod 3, and the first connecting rod 3 rotates around the support frame 2. At the same time, the tension spring 9 extends, and the angle between the two first connecting rods 3 increases, making the distance between the two clamping frames longer. The clamping frame has enough space to separate from the pressure pipeline 1. At the same time, the clamping block 4 moves on the pressure pipeline 1 until the clamping block 4 is separated from the pressure pipeline 1. When the clamping block 4 is separated from the pressure pipeline 1, the tension spring 9 shortens, driving the two first connecting rods 3 to rotate, and the angle between the two first connecting rods 3 decreases. The clamping block 4 rotates around the first connecting rod 3 until it contacts the first limit block 5. At this time, the structure of the clamping mechanism is as Figure 4 shown. Then the staff moves the support frame 2 to another location of the pressure pipeline 1 that needs to be detected, and fixes the support frame 2 on the pressure pipeline 1 through the clamping mechanism to detect the pressure pipeline 1. Repeat this process to complete the detection of the entire section of the pressure pipeline 1.

[0033] The above are only the embodiments of the present invention. Common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the present invention.

Claims

1. A pressure pipeline detection and positioning mechanism, characterized in that: It comprises a support frame, on which a clamping mechanism for clamping a pressure pipe is arranged, and two groups of the clamping mechanisms are respectively located on both sides of the pressure pipe; The two groups of clamping mechanisms are both provided with fixed blocks, and a tension spring is provided between the two groups of fixed blocks, and the two ends of the tension spring are respectively fixedly connected to the two groups of fixed blocks; The support frame is provided with a liftable detection mechanism, which is used to detect the pressure pipeline.

2. The pressure pipeline detection and positioning mechanism according to claim 1, characterized in that: The clamping mechanism includes a first connecting rod, one end of which is hinged on the support frame, and the other end of the first connecting rod is hinged with a clamping block, which is in a fan ring shape and completely fits the outer wall of the pressure pipe.

3. The pressure pipeline detection and positioning mechanism according to claim 2, characterized in that: The detection mechanism comprises a matching sleeve, an ultrasonic probe is mounted in the matching sleeve, and a display device is connected to the ultrasonic probe; The matching sleeve is provided with a box body, a coupling agent is placed in the box body, a micro negative pressure pump and a power supply are provided on the box body, the micro negative pressure pump is connected to the power supply, the air suction port of the micro negative pressure pump is located outside the box body, and the air exhaust port is located inside the box body.

4. The pressure pipeline detection and positioning mechanism according to claim 3, characterized in that: The lower end of the box body is provided with a fixing sleeve, the fixing sleeve is fitted with the pressure pipe, the lower end of the box body is provided with a matching groove, the fixing sleeve is communicated with the box body through the matching groove, and a valve assembly is provided between the fixing sleeve and the box body; The ultrasonic probe is clamped on the fixing sleeve.

5. The pressure pipeline detection and positioning mechanism according to claim 4, characterized in that: The valve assembly comprises a fixed box, a stopper is slidably mounted in the fixed box, and one end of the stopper is mounted in the matching groove; Two groups of second springs are arranged in the fixed box, and two ends of the second springs are respectively in contact with the stopper and the bottom end of the fixed box.

6. The pressure pipeline detection and positioning mechanism according to claim 5, characterized in that: A threaded rod is installed inside the support frame, and a hand wheel is provided at one end of the threaded rod; The threaded rod is sleeved with a connecting sleeve, the connecting sleeve is provided with a second connecting rod, the second connecting rod is fixedly connected to the matching sleeve, and the second connecting rod is slidably mounted on the supporting frame.

7. The pressure pipeline detection and positioning mechanism according to claim 6, characterized in that: A first limit block is disposed at one end of the first connecting rod, a first spring is disposed in the middle section of the first connecting rod, a second limit block is disposed at the other end of the first spring, and the second limit block is in contact with the clamping block; Two ends of the first spring are in contact with the first connecting rod and the second limiting block respectively.

Images