A new type of high-performance fiber and composite porosity detection device

Abstract

The application relates to the technical field of porosity detection, in particular to a novel high-performance fiber and composite material porosity detection device which comprises a framework mechanism and a detection mechanism. The framework mechanism comprises end head sections a, end head sections b and middle sections. The middle sections are provided with multiple groups and are provided with a turning groove at one end. The other end of the end head sections a and the middle sections is provided with an adapter ball. One end of the end head sections b is provided with an adapter groove. The adjacent middle sections and the end head sections a, the end head sections b and the middle sections are movably connected. The detection mechanism comprises a plate a, a box body a, a motor a, an ultrasonic probe and a camera. The plate a is arranged on the middle sections. The box body a is rotatably arranged on the middle sections. The motor a is arranged on the plate a and is in transmission connection with the box body a. The ultrasonic probe and the camera are arranged on the outer circumferential surface of the box body a. The application realizes the function of comprehensive detection of pipeline porosity, and significantly improves the reliability and detection efficiency of the detection result.

Description

Technical Field

[0001] This invention relates to the field of porosity detection technology, and more specifically to a novel high-performance fiber and composite material porosity detection device. Background Technology

[0002] Pores (pores) in fiber composites are a key factor affecting their final performance; when the porosity exceeds a certain threshold (usually 1%-2%), it will significantly reduce the mechanical properties of the material (such as interlaminar shear strength and compressive strength) and may cause early failure.

[0003] Chinese Patent CN111751260B discloses a device and method for measuring the cross-sectional area and porosity of ceramic matrix fiber bundle composite materials. The device includes an impregnation chamber, a negative pressure cylinder, a rubber stopper, and a pull rod. The ceramic matrix fiber bundle composite material sample is immersed in a filling liquid. The suction end of the negative pressure cylinder is sealed to the opening of the impregnation chamber. A rubber stopper is slidably installed inside the negative pressure cylinder and connected to the pull rod. The pull rod can move the rubber stopper away from the suction end of the negative pressure cylinder, causing the rubber stopper to slide. This results in the negative pressure cylinder drawing negative pressure into the impregnation chamber, causing air to be released from the pores of the ceramic matrix fiber bundle composite material sample, and the filling liquid filling the pores of the sample.

[0004] However, the above-mentioned existing technologies have the following drawbacks: they can only detect the porosity of material samples, and cannot detect the porosity of finished products made from materials, such as pipes made of fiber composite materials (industrial pressure pipes, etc.). After long-term service, the original pores of the pipe will increase and connect under the effects of internal pressure circulation, media erosion, temperature change, and foundation settlement, gradually leading to leakage, delamination, and bursting. Therefore, it is necessary to detect the porosity regularly, but the above-mentioned technical solutions cannot detect fiber composite materials during service. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a novel high-performance fiber and composite material porosity detection device.

[0006] The technical solution of this invention: A novel high-performance fiber and composite material porosity detection device, comprising: The skeleton mechanism includes end segment a, end segment b, and intermediate segment; the intermediate segment has multiple sets and one end has a turning groove; the other ends of end segment a and intermediate segment are connected to a transition ball; one end of end segment b has a transition groove; adjacent intermediate segments are connected to each other, as are end segment a, end segment b and intermediate segment, through transition balls movably disposed in the transition groove; A drive mechanism, which is connected to end segment a, is used to drive the skeleton mechanism to move inside the pipe to be tested; The testing mechanism includes a plate a, a box a, a motor a, an ultrasonic probe and a camera; the plate a is connected to one of the intermediate segments; the box a is rotatably mounted on the intermediate segment; the motor a is mounted on the plate a and is connected to the box a for transmission; the ultrasonic probe and the camera are both mounted on the outer circumferential surface of the box a. A grinding mechanism includes a motor b, a plate b, a housing b, an air bladder, a connecting block, and a cone head; the plate b is connected to one end of the end segment b; the housing b is rotatably connected to the plate b; the motor b is mounted on the plate b and is driven by the housing b; the connecting block is connected to the housing b; the connecting block is connected to the cone head via a rod a; the air bladder is connected to the connecting block and the cone head. A scraping mechanism, located on end segment b, is used to scrape debris from the inner wall of the pipe.

[0007] Preferably, the drive mechanism includes a spherical shell, an end cap, a mounting block, a U-shaped block, a motor c, a roller, and a telescopic component; the mounting block is connected to the inner wall of the spherical shell; the spherical shell has multiple circumferentially distributed through slots; the U-shaped block is slidably disposed inside the through slots; the roller is rotatably disposed inside the U-shaped block; the motor c is disposed on the U-shaped block and its output end is connected to the roller; the telescopic component is disposed on the mounting block and connected to the U-shaped block; the spherical shell has an opening on its upper part; the end cap is threadedly connected to the inner wall of the opening.

[0008] Preferably, the output end of motor a is connected to gear a; the inner wall of housing a is connected to gear ring a; gear a meshes with gear ring a.

[0009] Preferably, the surface of the airbag ball is provided with densely distributed diamond particles; the surface of the cone head is provided with spiral blades.

[0010] Preferably, the output end of the motor b is connected to a gear b; the inner wall of the housing b is connected to a gear ring b; the gear b meshes with the gear ring b.

[0011] Preferably, the scraping mechanism includes a disc, a motor d, a telescopic component, a guide shaft, an airbag ring, and expansion wheels; the disc is connected to the end segment b, and multiple arc-shaped grooves are formed on the disc; the motor d is connected to the plate b and is driven by the disc; multiple sets of telescopic components are provided and are circumferentially distributed on the end segment b; the guide shaft is connected to one end of the telescopic component, and one end of the guide shaft passes through the arc-shaped groove; the expansion wheels are rotatably connected to the guide shaft; and the airbag ring is connected to multiple expansion wheels.

[0012] Preferably, the telescopic component includes rod b and a hollow rod; the hollow rod is connected to the end segment b; rod b is slidably disposed inside the hollow rod; and a guide shaft is connected to rod b.

[0013] Preferably, the output end of the motor d is connected to a gear c; a gear ring c is connected to the disk; the gear ring c meshes with the gear c.

[0014] Preferably, the connecting block is equipped with an air inlet valve for inflating the airbag.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: The system comprises a drive mechanism, a frame mechanism, a detection mechanism, and a grinding mechanism. The drive mechanism moves the frame mechanism, which in turn moves the detection and grinding mechanisms inside the pipe. The grinding mechanism grinds the inner wall of the pipe, and then the detection mechanism detects the porosity of the inner wall, achieving comprehensive detection of the pipe's sidewall porosity and ensuring the completeness of the test results. Simultaneously, the frame mechanism's free bending capability allows it to perfectly adapt to the curvature of pipe bends, enabling the grinding mechanism to be pushed into and grind the bend. Subsequently, the detection mechanism is inserted into the bend to detect the porosity of the pipe wall, significantly reducing the difficulty of detecting porosity in pipe bends. Attached Figure Description

[0016] Figure 1 A three-dimensional representation of an embodiment of the present invention Figure 1 ; Figure 2 A three-dimensional representation of an embodiment of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the structure when the end cap separates from the spherical shell and when the end segment a separates from the middle segment in one embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure between the airbag bulb, cone, box body b, plate b and end segment b in a cross-sectional state in one embodiment of the present invention. Figure 5 This is a schematic diagram of the scraping mechanism in one embodiment of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the scraping mechanism in one embodiment of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the structure of plate a separated from box a in a cross-sectional state according to one embodiment of the present invention.

[0017] Reference numerals: 1. Airbag bulb; 2. Cone head; 3. Box b; 4. Plate b; 5. Disc; 6. Airbag ring; 7. Box a; 8. Ultrasonic probe; 9. Middle segment; 10. End segment a; 11. Spherical shell; 12. U-shaped block; 13. Roller; 14. Motor c; 15. Hollow rod; 16. Rod b; 17. Expansion wheel; 18. Motor a; 19. Plate a; 20. Adapter ball; 21. End cap; 22. Adapter groove; 23. Mounting block; 24. Telescopic component; 25. Inlet valve; 26. Gear ring c; 27. Motor b; 28. Gear a; 29. ​​Gear ring a; 30. Connecting block; 31. Rod a; 32. Motor d; 33. Guide shaft; 34. End segment b; 35. Gear b; 36. Gear ring b; 37. Camera; 38. Gear c. Detailed Implementation

[0018] Example 1, as Figure 1-2 and Figures 4-7 As shown, the present invention proposes a novel high-performance fiber and composite material porosity detection device, which includes a skeleton mechanism, a driving mechanism, a detection mechanism, a grinding mechanism, and a scraping mechanism. The skeleton mechanism includes end segment a10, end segment b34, and intermediate segment 9; the intermediate segment 9 has multiple sets and one end has a turning groove; the other end of end segment a10 and intermediate segment 9 are connected to a transition ball 20; one end of end segment b34 has a transition groove 22; adjacent intermediate segments 9 and end segments a10, end segment b34 and intermediate segment 9 are connected by transition balls 20 movably disposed in the transition groove 22 (two-thirds of the volume of the transition ball 20 is located inside the transition groove 22). The drive mechanism is connected to the end segment a10 and is used to drive the skeleton mechanism to move inside the pipe to be tested; The testing mechanism includes plate a19, box a7, motor a18, ultrasonic probe 8, and camera 37 (camera 37 is a night vision camera 37); plate a19 is connected to one of the intermediate segments 9; box a7 is rotatably mounted on the intermediate segment 9; motor a18 is mounted on plate a19 and is connected to box a7 for transmission, and gear a28 is connected to the output end of motor a18; gear ring a29 is connected to the inner wall of box a7; gear a28 meshes with gear ring a29; ultrasonic probe 8 and camera 37 are both located on the outer circumferential surface of box a7; The grinding mechanism includes a motor b27, a plate b4, a housing b3, an airbag ball 1, a connecting block 30, and a cone head 2. The plate b4 is connected to one end of the end segment b34. The housing b3 is rotatably connected to the plate b4. The motor b27 is mounted on the plate b4 and is connected to the housing b3 for transmission. The connecting block 30 is connected to the housing b3. The connecting block 30 is connected to the cone head 2 via a rod a31. The airbag ball 1 is connected to the connecting block 30 and the cone head 2 (the airbag ball 1 is made of polyester TPU material, which has extremely high wear resistance, with an wear resistance index of 8; pH range: 3-11; temperature range: -45℃-80℃; strength: 20-50MPa). The surface of the airbag ball 1 is covered with densely distributed diamond particles. The surface of the cone head 2 is covered with spiral blades (the cone head 2 is used to break up the dirt blocking the pipe, facilitating the movement of the entire device inside the pipe). The connecting block 30 is equipped with an air inlet valve 25 for inflating the airbag ball 1.

[0019] The scraping mechanism is located on the end section b34 and is used to scrape off debris from the inner wall of the pipe.

[0020] In this embodiment, the entire device is placed at one end of the pipe to be tested. An external air pump (or similar device) is used to inflate the airbag 1 through the air inlet valve 25 until the airbag 1 contacts the inner wall of the pipe. Then, the drive unit contacts the inner wall of the pipe, working with the airbag 1 to position the frame mechanism, ensuring that the central axis of the frame mechanism coincides with the central axis of the pipe. The drive mechanism moves the frame mechanism slowly and intermittently within the pipe (each movement distance is the width of the scanning range of the ultrasonic probe 8). Simultaneously, motor b27 is activated, driving gear b35 to rotate, which in turn drives the gear ring b36 to rotate, thereby... The rotating housing b3 drives the airbag ball 1 and cone head 2 to rotate via the connecting block 30. The diamond particles on the surface of the airbag ball 1 can polish the burrs, rust, and other dirt on the inner wall of the pipe. As the scraping mechanism moves, it can wipe away the residual debris on the inner wall of the pipe and push the debris to move. This ensures that when the ultrasonic probe 8 moves to the detection point, the inner wall of the pipe is a smooth and clean surface (burrs and other impurities on the inner wall will scatter sound waves, weaken or even completely block the echo from the bottom plate, which may be misread as "large-area delamination or pores"). When the ultrasonic probe 8 moves to the polishing point, the motor a18 drives the gear. Gear A28 rotates intermittently and slowly, driving gear A29 to rotate intermittently and slowly. Gear A29 then drives housing A7 to rotate intermittently and slowly, which in turn drives ultrasonic probe 8 and camera 37 to rotate intermittently and slowly. First, camera 37 is activated, transmitting an image of the pipe's inner wall to a display. If the inner wall is not properly polished, the drive mechanism is controlled, causing airbag ring 6 to return to the same spot for further polishing until it is clean. If the wall is clean, ultrasonic probe 8 sends an ultrasonic pulse to the pipe's sidewall. When the sound wave encounters internal defects (such as pores) or the bottom surface of the pipe's sidewall, it is reflected back, and the probe receives it. These reflected echoes will display a waveform on the screen of the outer instrument. If the material is intact, there will be a clear "bottom surface echo" on the screen. If there is an additional "defect echo" before the "bottom surface echo", it means that the sound wave is blocked, that is, there are pores in the inner wall of the pipe. By measuring the degree of attenuation of the ultrasonic wave in the side wall of the pipe, and using a pre-established "attenuation-porosity" mathematical model or calibration curve, the measured attenuation value is converted into a porosity percentage (the above detection process is existing technology). After the detection is completed here, the drive mechanism drives the skeleton mechanism to continue to move, so that the ultrasonic probe 8 continues to move to the next detection point.When the mechanism moves to the bend in the pipe, since adjacent intermediate segments 9 and intermediate segments 9 are connected to end segments a10 and b34 via adapter balls 20 movably positioned within adapter grooves 22, the skeleton mechanism can freely bend and deform to adapt to the curvature of the pipe bend. This allows the airbag ball 1 to be pushed into the bend, enabling it to polish the inner wall of the bend. The skeleton mechanism then continues to move, driving the detection mechanism into the bend, allowing it to perform porosity testing. Finally, the drive mechanism pushes the skeleton mechanism and polishing mechanism out from the other end of the pipe, expelling dirt and polished debris from the pipe. This simultaneously achieves pipe unblocking, inner wall polishing, and comprehensive porosity testing, significantly improving the reliability and efficiency of the test results.

[0021] Example 2, as Figure 3 As shown, this invention proposes a novel high-performance fiber and composite material porosity detection device. Compared to Embodiment 1, this embodiment further includes a drive mechanism. The drive mechanism includes a spherical shell 11, an end cap 21, a mounting block 23, a U-shaped block 12, a motor c14, a roller 13, and a telescopic component 24 (the telescopic component 24 includes, but is not limited to, devices such as cylinders). The mounting block 23 is connected to the inner wall of the spherical shell 11 (the spherical shell 11 is more adaptable to the curvature of the pipe, and its design facilitates the drive mechanism to move inward at the bend of the pipe). (Moving); The spherical shell 11 has multiple circumferentially distributed through grooves; the U-shaped block 12 is slidably disposed inside the through grooves; the roller 13 is rotatably disposed inside the U-shaped block 12 (the roller 13 is made of rubber material, and its surface is provided with anti-slip texture to increase the friction between the roller 13 and the inner wall of the pipe); the motor c14 is disposed on the U-shaped block 12 and its output end is connected to the roller 13; the telescopic component 24 is disposed on the mounting block 23 and connected to the U-shaped block 12; the spherical shell 11 has an opening on its upper part; the end cap 21 is threadedly connected to the inner wall of the opening.

[0022] In this embodiment, the telescopic component 24 drives the U-shaped block 12 to move, and the U-shaped block 12 drives the rollers 13 to move, so that the rollers 13 around the perimeter synchronously contact the inner wall of the pipe, realizing the further positioning function of the entire device inside the pipe. With the help of the airbag ball 1, the central axis of the skeleton mechanism is made to coincide with the central axis of the pipe; ensuring that the distance between the ultrasonic probe 8 and all parts of the inner wall of the pipe is the same, thereby ensuring the accuracy of the detection; the motor c14 drives the rollers 13 to rotate slowly, thereby driving the skeleton mechanism to move slowly inside the pipe; the motor c14 drives the rollers 13 to rotate intermittently, thereby controlling the intermittent movement of the drive mechanism.

[0023] Example 3, as Figure 4-6As shown, this invention proposes a novel high-performance fiber and composite material porosity detection device. Compared to Embodiment 2, this embodiment further includes a scraping mechanism. The scraping mechanism includes a disc 5, a motor d32, a telescopic component, a guide shaft 33, an airbag ring 6, and an expansion wheel 17. The disc 5 is connected to the end segment b34, and multiple arc-shaped grooves are formed on the disc 5. The motor d32 is connected to the plate b4 and is driven by the disc 5. Multiple sets of telescopic components are provided and circumferentially distributed on the end segment b34. The guide shaft 33 is also included. Shaft 33 is connected to one end of the telescopic component, and one end of the guide shaft 33 passes through the arc-shaped groove; the expansion wheel 17 is rotatably connected to the guide shaft 33; the airbag ring 6 is connected to multiple expansion wheels 17; the telescopic component includes rod b16 and hollow rod 15; the hollow rod 15 is connected to the end segment b34; rod b16 is slidably disposed inside the hollow rod 15; the guide shaft 33 is connected to rod b16; the output end of motor d32 is connected to gear c38; a gear ring c26 is connected to the disc 5; the gear ring c26 meshes with gear c38.

[0024] In this embodiment, motor d32 drives gear c38 to rotate, gear c38 drives gear ring c26 to rotate, and gear ring c26 drives disk 5 to rotate counterclockwise (see reference). Figure 4 Under the guidance of the arc groove, the guide shaft 33 drives the rod b16 to move away from the hollow rod 15. The rod b16 drives the expansion wheel 17 to move. The expansion wheel 17 on all sides evenly expands the airbag ring 6 (i.e., the radius increases) so that the airbag ring 6 fits against the inner wall of the pipe. Conversely, when the control disc 5 rotates counterclockwise, the airbag ring 6 automatically contracts and becomes smaller (i.e., the radius decreases) under its own elastic force.

[0025] It should be noted that when the airbag ring 6 is stretched uniformly, the stress state of each point on the airbag ring 6 is the same, and there will be no local stretching or local shrinking. As long as there is no external force to destroy the symmetry, the geometric shape (circular ring) will be preserved.

[0026] It is worth noting that when the rod b16 moves to the bottom of the hollow rod 15, the airbag ring 6 still has the elasticity to contract, ensuring that the airbag ring 6 can be firmly restrained on the expansion wheel 17.

[0027] In summary, the entire device is placed at one end of the pipe to be tested; an external air pump is used to inflate the airbag 1 through the air inlet valve 25 until the airbag 1 contacts the inner wall of the pipe; then, the telescopic component 24 drives the U-shaped block 12 to move, and the U-shaped block 12 drives the rollers 13 to move, so that the rollers 13 around the device simultaneously contact the inner wall of the pipe, achieving further positioning of the entire device inside the pipe, and cooperating with the airbag 1 to make the central axis of the skeleton mechanism coincide with the central axis of the pipe; then, the motor d32 drives the gear c38 to rotate, the gear c38 drives the gear ring c26 to rotate, and the gear ring c26 drives the disc 5 to rotate counterclockwise (refer to...). Figure 4 Under the guidance of the arc groove, the guide shaft 33 drives the rod b16 to move away from the hollow rod 15. The rod b16 drives the expansion wheel 17 to move. The expansion wheel 17 on all sides evenly expands the airbag ring 6 in all directions (i.e., the radius increases), so that the airbag ring 6 fits the inner wall of the pipe.

[0028] Motor C14 drives roller 13 to rotate intermittently and slowly, which in turn drives the frame mechanism to move intermittently and slowly inside the pipe (each movement distance is the width of the scanning range of ultrasonic probe 8). Simultaneously, motor B27 is activated, driving gear B35 to rotate, which in turn drives gear ring B36 to rotate, thus rotating housing B3. Housing B3, through connecting block 30, drives airbag ball 1 and cone head 2 to rotate. The diamond particles on the surface of airbag ball 1 can polish burrs, rust, and other dirt on the inner wall of the pipe. As airbag ring 6 moves, it can wipe away residual debris on the inner wall of the pipe and push the debris away; ensuring that the inner wall of the pipe is smooth and clean when ultrasonic probe 8 moves to the detection point; during ultrasonic... When the ultrasonic probe 8 moves to the grinding point, motor a18 drives gear a28 to rotate intermittently and slowly. Gear a28 drives gear ring a29 to rotate intermittently and slowly, which in turn drives housing a7 to rotate intermittently and slowly. Housing a7 then drives ultrasonic probe 8 and camera 37 to rotate intermittently and slowly. First, camera 37 is activated, transmitting the image of the pipe's inner wall to a display. If the inner wall is not clean, the drive mechanism is controlled, causing airbag ring 6 to return to the grinding point for re-grinding until it is clean. If the wall is clean, ultrasonic probe 8 sends an ultrasonic pulse to the pipe's sidewall. When the sound wave encounters internal defects (such as pores) or the bottom surface of the pipe's sidewall, it is reflected back, and the probe receives these reflected echoes. A waveform will be displayed on the screen of the outer instrument. If the material is intact, there will be a clear "bottom surface echo" on the screen. If there is an additional "defect echo" before the "bottom surface echo", it means that the sound wave is blocked, that is, there are pores in the inner wall of the pipe. By measuring the degree of attenuation of the ultrasonic wave in the side wall of the pipe, and using a pre-established "attenuation-porosity" mathematical model or calibration curve, the measured attenuation value is converted into a porosity percentage (the above detection process is existing technology). After the detection is completed here, the drive mechanism drives the skeleton mechanism to continue to move, so that the ultrasonic probe 8 continues to move to the next detection point. When it moves to the bend of the pipe, due to the gap between adjacent intermediate segments 9 and between intermediate segments 9 and end segments a10 and end segments, the ultrasonic waves are blocked. All segments b34 are connected via adapter balls 20 movably mounted in adapter grooves 22. This allows the skeleton mechanism to freely bend and deform to adapt to the curvature of the pipe bend, pushing the airbag ball 1 into the bend and enabling it to polish the inner wall of the bend. The skeleton mechanism then continues to move, driving the detection mechanism into the bend, allowing it to perform porosity testing. Finally, the drive mechanism pushes the skeleton mechanism and polishing mechanism out of the other end of the pipe, removing dirt and polished debris. This simultaneously achieves pipe unblocking, inner wall polishing, and comprehensive porosity testing, significantly improving the reliability and efficiency of the test results.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A novel porosity detection device for high-performance fibers and composite materials, characterized in that, include: The skeleton mechanism includes an end segment a (10), an end segment b (34), and an intermediate segment (9); the intermediate segment (9) is provided with multiple sets and a turning groove is opened at one end; the other ends of the end segment a (10) and the intermediate segment (9) are connected to a transition ball (20); one end of the end segment b (34) is provided with a transition groove (22); adjacent intermediate segments (9) are connected to each other and the end segments a (10), end segments b (34) and intermediate segments (9) are connected by transition balls (20) movably disposed in the transition groove (22); A drive mechanism, which is connected to the end segment a (10), is used to drive the skeleton mechanism to move inside the pipe to be tested; The testing mechanism includes a plate a (19), a box a (7), a motor a (18), an ultrasonic probe (8), and a camera (37); the plate a (19) is connected to one of the intermediate segments (9); the box a (7) is rotatably mounted on the intermediate segment (9); the motor a (18) is mounted on the plate a (19) and is connected to the box a (7) for transmission; the ultrasonic probe (8) and the camera (37) are both mounted on the outer circumferential surface of the box a (7); The grinding mechanism includes a motor b (27), a plate b (4), a housing b (3), an airbag ball (1), a connecting block (30), and a cone head (2); the plate b (4) is connected to one end of the end segment b (34); the housing b (3) is rotatably connected to the plate b (4); the motor b (27) is mounted on the plate b (4) and is connected to the housing b (3) in a transmission manner; the connecting block (30) is connected to the housing b (3); the connecting block (30) is connected to the cone head (2) through a rod a (31); the airbag ball (1) is connected to the connecting block (30) and the cone head (2); A scraping mechanism, located on end segment b (34), is used to scrape debris from the inner wall of the pipe.

2. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, The drive mechanism includes a spherical shell (11), an end cap (21), a mounting block (23), a U-shaped block (12), a motor c (14), a roller (13), and a telescopic component (24); the mounting block (23) is connected to the inner wall of the spherical shell (11); the spherical shell (11) has multiple circumferentially distributed through slots; the U-shaped block (12) is slidably disposed inside the through slots; the roller (13) is rotatably disposed inside the U-shaped block (12); the motor c (14) is disposed on the U-shaped block (12) and its output end is connected to the roller (13); the telescopic component (24) is disposed on the mounting block (23) and connected to the U-shaped block (12); the spherical shell (11) has an opening on its upper surface; the end cap (21) is threadedly connected to the inner wall of the opening.

3. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, The output end of motor a (18) is connected to gear a (28); the inner wall of box a (7) is connected to gear ring a (29); gear a (28) meshes with gear ring a (29).

4. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, The surface of the airbag ball (1) is covered with densely distributed diamond particles; the surface of the cone head (2) is covered with spiral blades.

5. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, The output end of motor b (27) is connected to gear b (35); the inner wall of housing b (3) is connected to gear ring b (36); gear b (35) meshes with gear ring b (36).

6. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, The scraping mechanism includes a disc (5), a motor d (32), a telescopic component, a guide shaft (33), an airbag ring (6), and a support wheel (17). The disc (5) is connected to the end segment b (34), and multiple arc-shaped grooves are provided on the disc (5). The motor d (32) is connected to the plate b (4) and is connected to the disc (5) for transmission. Multiple sets of telescopic components are provided and are distributed circumferentially on the end segment b (34). The guide shaft (33) is connected to one end of the telescopic component, and one end of the guide shaft (33) passes through the arc-shaped groove. The support wheel (17) is rotatably connected to the guide shaft (33). The airbag ring (6) is connected to multiple support wheels (17).

7. The novel high-performance fiber and composite material porosity detection device according to claim 6, characterized in that, The telescopic component includes rod b (16) and hollow rod (15); hollow rod (15) is connected to end segment b (34); rod b (16) is slidably disposed inside hollow rod (15); guide shaft (33) is connected to rod b (16).

8. The novel high-performance fiber and composite material porosity detection device according to claim 6, characterized in that, The output end of motor d (32) is connected to gear c (38); a gear ring c (26) is connected to disk (5); the gear ring c (26) meshes with gear c (38).

9. The novel high-performance fiber and composite material porosity detection device according to claim 1, characterized in that, An air inlet valve (25) is provided on the connecting block (30) for inflating the airbag bulb (1).

Images