Nondestructive inspection device

Abstract

The utility model relates to the technical field of non-destructive inspection, in particular to a non-destructive inspection device which comprises inspection bodies distributed annularly at equal intervals, fixed seats are arranged at the front ends and the rear ends of the inspection bodies, a grip is welded between the tops of the fixed seats on the two sides, through holes are formed in the corners of the two sides of the tops of the fixed seats, and fixing screws and nuts are arranged on the through holes in a matched mode. Pulleys are arranged on the bottom surfaces of the fixing seats on the two sides, and a plurality of detection assemblies are arranged on the bottom surface of the flaw detection body; according to the device, the pulley, the fixing seat and the flaw detection body are fixedly connected through the screws, early-stage installation and fixation and later-stage damage replacement are facilitated, connection and fixation are conducted through the fixing screws and the nuts by adjusting the angle positions of the penetrating holes, the fixing holes and the sliding groove holes, and the device is suitable for pipelines of different sizes; after the device is connected, the outer surface of the pipeline can be detected only by holding the grip to do uniform linear motion, and the detection efficiency is higher and more accurate due to the fact that a plurality of detection assemblies are used for detecting jointly.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive flaw detection, in particular to a non-destructive flaw detection device. Background Art

[0002] During the pipeline welding process, there will be certain defects due to various reasons, such as cracks, interlayers, etc. Therefore, before leaving the factory, the welded pipeline needs to be inspected and tested to ensure that the welded pipelines are qualified. The flaw detection device in the existing technology is not only unable to perform all-round flaw detection on the pipeline, but also is not suitable for detecting welded pipelines of different specifications and diameters;

[0003] The utility model with the announcement number CN210401260U discloses a device for non-destructive testing of pipeline welds by radiographic imaging, comprising a base and support frames located on both sides of the top of the base, a turntable is arranged between the support frames, the turntable is a hollow structure, a matching annular turntable is arranged inside the turntable, a plurality of slide grooves are arranged in sequence inside the annular turntable, the slide grooves are arc-shaped structures, a fixed clamp ring is arranged between the plurality of slide grooves, the other end of the fixed clamp ring is connected to a fixed plate located on one side of the slide groove, the fixed plate sleeve is arranged inside a fixed plate located at the center of the annular turntable, and a through groove matching the fixed plate is arranged inside the fixed plate;

[0004] In the above technical solution, the receiver makes a circular motion around the pipeline, and the X-ray transmitter also makes a circular motion, thereby ensuring the synchronous motion of the receiver and the X-ray transmitter, and can easily fix the motion of the X-ray transmitter, while improving the detection efficiency and accuracy of the device; however, in actual use, the device is complicated to install, inconvenient to disassemble, and cannot adapt to the detection of pipelines of different sizes. The operation of the device is complicated and inefficient when used for detection. Utility Model Content

[0005] The purpose of the utility model is to provide a ventilation and heat dissipation device in a prefabricated cabin to solve the problem that the device for non-destructive testing of pipeline welds with authorization announcement number CN210401260U proposed in the above background technology is complicated to install, inconvenient to disassemble, and cannot adapt to the detection of pipelines of different sizes. The operation is complicated and the efficiency is low when using the device for detection.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A nondestructive flaw detection device comprises a flaw detection body which is distributed in a circular shape with equal intervals, wherein fixing seats are arranged at the front and rear ends of the flaw detection body, a grip is welded between the tops of the fixing seats on both sides, through holes are opened at the corners on both sides of the top of the fixing seats, fixing screws and nuts are matched on the through holes, a connecting rod is arranged at the connection between the through holes and the fixing screws, pulleys are arranged on the bottom surfaces of the fixing seats on both sides, and a plurality of detection components are arranged on the bottom surface of the flaw detection body.

[0008] Preferably, the plurality of detection components are distributed in a straight line with equal spacing.

[0009] In the utility model, the detection component is made of an ultrasonic transmitting device, an ultrasonic receiving device and an alarm device. The ultrasonic transmitting device continuously transmits ultrasonic waves to the outer surface of the pipeline at equal intervals. The ultrasonic waves are reflected when they hit the outer wall of the pipeline and are received and analyzed by the ultrasonic receiving device. If the ultrasonic waves hit the damaged part of the pipeline, the ultrasonic waves received by the ultrasonic receiving device are different, which triggers the alarm device and sounds an alarm.

[0010] Preferably, the handle is a cylinder, and the surface of the handle is provided with anti-slip grooves.

[0011] In the utility model, the cylindrical handle is easy to hold, and the surface is provided with anti-skid patterns to increase the friction of the handle, making it easier for the user to hold and move.

[0012] Preferably, a fixing hole is provided at one end of the connecting rod, and the fixing hole is adapted to the fixing screw, and a slide slot hole is provided at the other end of the connecting rod, and the height of the slide slot hole is equal to the diameter of the fixing screw, and the length of the slide slot hole is at least 2 cm.

[0013] In the utility model, the fixing screw passes through the fixing hole and the through hole in sequence to connect and fix one end of the connecting rod to the fixing seat of the detection device. By adjusting the position and angle of the through hole on the other detection device and the slide slot hole on the other end of the connecting rod, the detection device as a whole suitable for different pipe sizes can be assembled.

[0014] Preferably, the top end of the pulley is fixedly connected to the flaw detection body by means of screws passing through a fixing seat.

[0015] In the utility model, the pulley is fixed by screws, so that the pulley is convenient to be quickly replaced.

[0016] Preferably, the pulley is a U-shaped wheel, and the bottom surface of the pulley is lower than the bottom of the flaw detection body.

[0017] In the utility model, the U-shaped wheel increases the contact area between the pulley and the outer surface of the pipeline, increases the friction of the pulley, and makes it more stable for the user to move the detection device. The bottom surface of the pulley should be lower than the bottom surface of the flaw detection body to facilitate the movement of the flaw detection device. At the same time, a detection distance is left for the detection component to facilitate the operation of the detection component.

[0018] Preferably, two adjacent flaw detection bodies are connected by a connecting rod assembly, and the fixing screws sequentially pass through the through holes in the fixing seat on one of the flaw detection bodies and extend to the slide slot holes on the connecting rod installed on the other flaw detection body, and the ends of the fixing screws are threadedly connected by nuts.

[0019] In the utility model, a connecting rod is used to connect two adjacent flaw detection bodies, and a fixing screw and a nut are used to fix the connecting rod and the flaw detection body, so that assembly is convenient and later component replacement and maintenance are convenient.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model uses screws to fix the pulley, the fixing seat and the flaw detection body, which is convenient for early installation and fixing and later replacement in case of damage. By opening a fixing hole and a slide hole on the connecting rod, aligning the perforation opened on the fixing seat, adjusting the angle position of the perforation and the fixing hole and the slide hole, and connecting and fixing with fixing screws and nuts, the detection of pipelines of different sizes can be realized. After the connection is completed, the device only needs to be placed on the outer surface of the pipeline, turn on the power, hold the handle for uniform linear motion, and the pipeline can be inspected. In addition, multiple detection components can be detected together, so the detection efficiency is higher and more accurate.

[0022] 2. The utility model increases friction by arranging anti-slip grooves on the handle to facilitate the user to move the flaw detection device. The flaw detection device is fixed and connected as a whole by screws, which is convenient for replacing damaged parts at a later time. In addition, an anti-corrosion layer is sprayed on the surface to increase the service life of the flaw detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0025] Figure 3 It is a schematic diagram of the connection structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the overall connection structure of the utility model.

[0027] The meaning of each number in the figure is:

[0028] 1. Detection body;

[0029] 2. Fixing seat; 20. Grip; 21. Perforation; 22. Fixing screw; 23. Nut;

[0030] 3. Connecting rod; 30. Fixing hole; 31. Slide hole;

[0031] 4. Pulley;

[0032] 5. Detect components. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-Figure 4 , this embodiment provides a technical solution:

[0035] A nondestructive flaw detection device includes a flaw detection body 1 distributed in a ring shape with equal intervals. The flaw detection body 1 is provided with fixing seats 2 at the front and rear ends. A handle 20 is welded between the tops of the fixing seats 2 on both sides. The handle 20 is a cylinder and has anti-slip patterns on its surface.

[0036] In the utility model, the cylindrical handle 20 is easy to hold, and the surface is provided with anti-skid patterns to increase the friction of the handle 20, making it easier for the user to hold and move.

[0037] Furthermore, through holes 21 are provided at the corners on both sides of the top of the fixing seat 2, and fixing screws 22 and nuts 23 are provided on the through holes 21. A connecting rod 3 is provided at the connection between the through holes 21 and the fixing screws 22. A fixing hole 30 is provided at one end of the connecting rod 3, and the fixing hole 30 is adapted to the fixing screws 22. A slide slot hole 31 is provided at the other end of the connecting rod 3, and the height of the slide slot hole 31 is equal to the diameter of the fixing screw 22, and the length of the slide slot hole 31 is at least 2 cm.

[0038] In the utility model, the fixing screw 22 passes through the fixing hole 30 and the through hole 21 in sequence to connect and fix one end of the connecting rod 3 to the detection device fixing base 2. By adjusting the position and angle of the through hole 21 on another detection device and the slide groove hole 31 on the other end of the connecting rod 3, the detection device as a whole suitable for different pipe sizes can be assembled.

[0039] Secondly, two adjacent flaw detection bodies 1 are connected by a connecting rod 3 combination, and the fixing screw 22 passes through the through hole 21 in the fixing seat 2 on one of the flaw detection bodies 1 in turn and extends to the slide slot hole 31 on the connecting rod 3 installed on the other flaw detection body 1, and the end of the fixing screw 22 is threadedly connected by a nut 23.

[0040] In the utility model, the connecting rod 3 is used to connect two adjacent flaw detection bodies 1, and the fixing screws 22 and nuts 23 are used to fix the connecting rod 3 and the flaw detection body 1, which is convenient for assembly and later component replacement and maintenance.

[0041] Specifically, pulleys 4 are provided on the bottom surfaces of the fixing seats 2 on both sides, and the top ends of the pulleys 4 pass through the fixing seats 2 and are fixedly connected to the flaw detection body 1 via screws.

[0042] In the utility model, the pulley 4 is fixed by screws, so that the pulley 4 can be quickly replaced.

[0043] It should be noted that the pulley 4 is a U-shaped wheel, and the bottom surface of the pulley 4 is lower than the bottom of the flaw detection body 1.

[0044] In the utility model, the U-shaped wheel increases the contact area between the pulley 4 and the outer surface of the pipe, increases the friction of the pulley 4, and makes it more stable for the user to move the detection device. The bottom surface of the pulley 4 should be lower than the bottom surface of the flaw detection body 1 to facilitate the movement of the flaw detection device. At the same time, a detection distance is left for the detection component 5 to facilitate the operation of the detection component 5.

[0045] Finally, it should be mentioned that a plurality of detection components 5 are disposed on the bottom surface of the flaw detection body 1, and the plurality of detection components 5 are distributed in a straight line with equal spacing.

[0046] In the utility model, the detection component 5 is made of an ultrasonic transmitting device, an ultrasonic receiving device and an alarm device. The ultrasonic transmitting device continuously transmits ultrasonic waves to the outer surface of the pipeline at equal intervals. The ultrasonic waves are reflected when they hit the outer wall of the pipeline and are received and analyzed by the ultrasonic receiving device. If the ultrasonic waves hit the damaged part of the pipeline, the ultrasonic waves received by the ultrasonic receiving device are different, which triggers the alarm device and sounds an alarm.

[0047] When using a nondestructive flaw detection device in this embodiment, the user first aligns the screw holes on the fixing seat 2 with the screw holes at both ends of the flaw detection body 1, aligns the screw holes at the top end of the pulley 4 with the screw holes at the bottom end of the fixing seat 2, and sequentially passes the screws through the pulley 4, the fixing seat 2, and the screw holes on the flaw detection body 1 to connect and fix them, aligns the fixing holes 30 on the connecting rod 3 with the right through holes 21 at the front and rear ends of the fixing seat 2, and sequentially passes the fixing screws 22 through the fixing holes 30 and the through holes 21, adjusts the required angle of the connecting rod 3, and uses the nuts 23 to cooperate with the fixing screws 22 to fix it, aligns the slide slot holes 31 on the connecting rod 3 with the left through holes 21 at the front and rear ends of the adjacent flaw detection body 1, adjusts the required position angle, and sequentially passes the fixing screws 22 through the slide slot holes 31 and the through holes 21 on the adjacent flaw detection body 1, and uses the matching nuts 23 to fix it;

[0048] When the nondestructive flaw detection device is needed, first observe the diameter of the pipe to be inspected, determine the number of flaw detection bodies 1 to be used, align the fixing seat 2 with the two ends of the flaw detection body 1, align the pulley 4 with the fixing seat 2, use screws to fix the pulley 4, the fixing seat 2, and the flaw detection body 1, align the fixing hole 30 on the connecting rod 3 with the through holes 21 at the front and rear ends of the fixing seat 2, align the slide slot hole 31 on the connecting rod 3 with the through holes 21 on the other side of the front and rear ends of the adjacent flaw detection body 1, adjust the required angle position, and fix it with the fixing screws 22 and nuts 23;

[0049] When in use, turn on the power supply of the flaw detection body 1, and the detection component 5 at the bottom of the flaw detection body 1 starts to work. The device is placed on the outer surface of the pipeline to be inspected, and the tightness of the fixing screw 22 and the nut 23 is adjusted to adjust the shape of the device so that it fits the outer surface of the pipeline more closely. Hold the handle 20 on the flaw detection body 1, and move the pulley 4 to make the flaw detection body 1 move linearly from one end of the outer surface of the pipeline to the other end at a uniform speed. When damage is found in the pipeline during the movement, the detection component 5 will sound an alarm to remind the user that there is damage at this point in the pipeline. At this time, the device can be moved to a place where the pipeline is intact to repair the damaged part.

[0050] When the pulley 4 on the flaw detection body 1 is damaged, the pulley 4 can be replaced by screwing the screws at the bottom of the pulley 4.

Claims

1. A nondestructive flaw detection device, comprising a flaw detection body (1) distributed in an annular shape with equal spacing, characterized in that: The flaw detection body (1) is provided with a fixing seat (2) at both ends, a handle (20) is welded between the tops of the fixing seats (2) on both sides, through holes (21) are opened at the corners on both sides of the top of the fixing seat (2), and the through holes (21) are matched with fixing screws (22) and nuts (23), and a connecting rod (3) is provided at the connection between the through holes (21) and the fixing screws (22), pulleys (4) are provided on the bottom surfaces of the fixing seats (2) on both sides, and a plurality of detection components (5) are provided on the bottom surface of the flaw detection body (1).

2. The nondestructive testing device according to claim 1, characterized in that: The plurality of detection components (5) are distributed in a straight line at equal intervals.

3. The nondestructive flaw detection device according to claim 1, characterized in that: The handle (20) is a cylinder, and the surface of the handle (20) is provided with anti-slip grooves.

4. The nondestructive flaw detection device according to claim 1, characterized in that: A fixing hole (30) is provided at one end of the connecting rod (3), and the fixing hole (30) is adapted to the fixing screw (22); a sliding slot hole (31) is provided at the other end of the connecting rod (3), and the height of the sliding slot hole (31) is equal to the diameter of the fixing screw (22), and the length of the sliding slot hole (31) is at least 2 cm.

5. The nondestructive flaw detection device according to claim 1, characterized in that: The top end of the pulley (4) is fixedly connected to the flaw detection body (1) through a screw passing through a fixing seat (2).

6. The nondestructive flaw detection device according to claim 5, characterized in that: The pulley (4) is a U-shaped wheel, and the bottom surface of the pulley (4) is lower than the bottom of the flaw detection body (1).

7. The nondestructive testing device according to claim 4, characterized in that: Two adjacent flaw detection bodies (1) are connected in combination via a connecting rod (3), and a fixing screw (22) sequentially passes through a through hole (21) in a fixing seat (2) on one of the flaw detection bodies (1) and extends to a slide slot hole (31) on a connecting rod (3) installed on another flaw detection body (1), and the end of the fixing screw (22) is threadedly connected via a nut (23).

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