Single-walled carbon nanotube material sampling device
By designing a single-wall carbon nanotube sampling device with integrated sampling, detection and sampling functions, the problems of cumbersome operation and time lag of traditional devices are solved, and efficient and convenient sample processing and real-time detection are achieved.
Patent Information
- Application Number
- CN202510200631.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The traditional single-wall carbon nanotube sampling device is cumbersome to operate, and there are problems with sample sealing and time lag, which affects the timeliness and accuracy of the detection results.
A device integrating sampling, detection and sampling functions is designed to realize the specific action of the sampling tube through up and down movement and rotation of the drum, and combine the fan and yarn mesh structure to achieve accurate sampling and recycling of samples.
It improves work efficiency and operational convenience, reduces the sealing risk and time lag during sample transfer, and realizes the need for immediate detection.
Smart Images
Figure CN119666469A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sampling, in particular to a single-walled carbon nanotube material sampling device. Background Art
[0002] In the field of materials science, single-walled carbon nanotubes (SWCNTs) have become a hot material in scientific research and industrial applications due to their unique electrical, mechanical and optical properties. In its manufacturing process, accurate and efficient evaluation of production results is inseparable from the precise sampling and analysis of SWCNTs.
[0003] Traditional single-walled carbon nanotube sampling devices usually adopt a staged sampling method, that is, gradually obtaining SWCNTs samples from the delivery tube. Although this method ensures the uniformity of sampling to a certain extent, the operation process is relatively cumbersome because the sealing of the SWCNTs sample needs to be maintained during the process of transferring the SWCNTs sample from the sampling device to the detection station, so additional sealing means are required.
[0004] In addition, there is a certain time lag in the process of sending samples to the inspection station for quality analysis, that is, there is a certain waiting period between sampling and testing. This lag may not only affect the timeliness and accuracy of the test results, but also have an adverse impact on scientific research and industrial applications. For example, in scenarios where real-time monitoring of SWCNTs production quality or performance changes is required, existing sampling devices may not meet the needs of instant detection.
[0005] Therefore, it is necessary to provide a single-walled carbon nanotube material sampling device to solve the above problems. Summary of the invention
[0006] To solve the above problems, the present invention provides the following technical solutions: a single-walled carbon nanotube material sampling device, used to obtain single-walled carbon nanotubes from a conveying pipe, detect them, and then return the single-walled carbon nanotubes to the conveying pipe, comprising: A first chamber, the bottom of which is connected to the delivery pipe by a sealing pipe; a second chamber formed inside the first chamber and used to accommodate the sampling tube; An observation seat, one side of which is connected to the second chamber through a connecting seat; An optical detector, which is arranged on the top of the observation seat; A sampling drive assembly, used for driving the sampling tube to move downward into the delivery tube and reset; Wherein, a fan is provided on the side of the first chamber; The side of the sampling tube has a first hole body and a second hole body which are symmetrically arranged, and a third gauze is embedded in the second hole body; A first sealing disk is fixed to the bottom of the sampling tube, and the first sealing disk can be connected to the sealing tube in a sealing and sliding manner.
[0007] Preferably, the sampling drive assembly comprises: an outer cylinder fixedly half-embedded in the first chamber; A rotating drum is rotatably disposed in the outer drum and can slide out of the outer drum, and the outer surface of the rotating drum has two spiral grooves and two axial grooves that are circumferentially spaced apart, and the spiral grooves and the axial grooves are alternately distributed and connected to form an undulating continuous groove body; A limiting clamp, which is arranged on the side of the outer cylinder and is used for limiting the connection of the continuous trough body; A pressure rod, which passes through the upper wall of the outer cylinder and is rotatably connected to the rotating cylinder, and a return spring is arranged between the pressure rod and the outer cylinder; Wherein, the bottom of the rotating drum is fixedly connected to the sampling tube; A limiting protrusion is embedded in the axial groove, and the lower surface of the limiting protrusion is matched with the corresponding spiral groove.
[0008] Preferably, a base is fixed on one side of the outer cylinder, a deflection rod is hinged on the base, one end of the deflection rod contacts the upper surface of the pressure rod, and the other end is hinged to the output end of the telescopic cylinder, and the telescopic cylinder is also hinged to the base.
[0009] Preferably, the side wall of the outer cylinder integrally extends outward to form a receiving cylinder, the limit clamp is set in the receiving cylinder along the radial sliding direction of the outer cylinder, a compression spring is fixed in the receiving cylinder, and the compression spring is used to provide force for the limit clamp to move toward the rotating cylinder.
[0010] Preferably, the depth of the lowest portion of the spiral groove is the same as the depth of the axial groove, and the depth of the spiral groove gradually decreases from bottom to top, so as to produce a limiting step at the intersection of the axial groove and the upper portion of the spiral groove.
[0011] Preferably, a roller body is rotatably provided at the bottom of the observation seat, micro-oscillators are fixed on both sides of the roller body, and two micro-oscillators are commonly supported and connected to an arc seat, and a detection plate is fixed on the top of the arc seat.
[0012] Preferably, an elastic support pad for supporting the detection plate is fixed to the bottom of the detection plate.
[0013] Preferably, a second through groove is formed on a side of the observation seat away from the first chamber, and a second gauze is embedded in the second through groove for intercepting the single-walled carbon nanotubes; A first through slot is formed on the side of the first chamber, and a first gauze is embedded in the first through slot.
[0014] Preferably, a second sealing disk is fixed on the sampling tube, and the second sealing disk is located above the first hole body and the second hole body, and the second sealing disk can be sealingly and slidably connected to the sealing tube.
[0015] Compared with the prior art, the present invention provides a single-walled carbon nanotube material sampling device, which has the following beneficial effects: The present invention integrates the functions of sampling, detection, and sample collection, thereby improving work efficiency and convenience of operation. During sampling, the specific movement of the sampling tube is achieved by moving the drum up and down and rotating the drum, which is convenient for subsequent detection and sample collection. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the main structure of a single-walled carbon nanotube material sampling device; Figure 2 It is a structural schematic diagram of a sampling drive component in a single-walled carbon nanotube material sampling device; Figure 3 It is a schematic cross-sectional structure diagram of an outer cylinder and a sampling tube in a single-walled carbon nanotube material sampling device; Figure 4 It is a schematic diagram of the structure of a rotating cylinder and a sampling tube in a single-walled carbon nanotube material sampling device; Figure 5 It is a schematic diagram of the structure of an observation seat in a single-walled carbon nanotube material sampling device; In the figure: 1. conveying pipe; 2. first chamber; 3. second chamber; 4. sampling tube; 5. sealing tube; 6. sampling drive assembly; 7. fan; 8. first gauze; 9. connecting seat; 10. observation seat; 11. second gauze; 12. optical detector; 41. first hole body; 42. second hole body; 43. first sealing disk; 44. second sealing disk; 61. outer cylinder; 62. rotating cylinder; 63. pressure rod; 64. return spring; 65. limit clamp; 66. pressure spring; 67. deflection rod; 68. base; 69. telescopic cylinder; 621. spiral groove; 622. axial groove; 623. limit step; 624. limit protrusion; 101. roller body; 102. micro-oscillator; 103. arc seat; 104. detection plate; 105. elastic support pad. DETAILED DESCRIPTION
[0017] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.
[0018] Example: Please refer to Figure 1-Figure 5 In the prior art, the single-walled carbon nanotube material sampling device used is designed to extract single-walled carbon nanotube samples from the conveying pipe 1 in stages, and finally transfer these single-walled carbon nanotube samples to the detection station for quality analysis. However, in this process, it is very important to ensure the sealing of the single-walled carbon nanotube samples on the way to the detection station to avoid any possible contamination or loss, which undoubtedly increases the complexity of the operation. More importantly, the current sampling and detection process is not carried out instantly, but there is a certain time lag, which means that there will be a waiting period from sampling to obtaining the test results. Such an operation mode is not only cumbersome, but may also affect the timeliness and accuracy of the test results.
[0019] In order to solve this problem, in an embodiment of the present invention, a single-walled carbon nanotube material sampling device is provided, which is used to obtain single-walled carbon nanotubes from the conveying pipe 1, detect them, and then return the single-walled carbon nanotubes to the conveying pipe 1, which specifically includes: The first chamber 2, the bottom of which is connected to the delivery pipe 1 through a sealing pipe 5; A second chamber 3, formed inside the first chamber 2, for accommodating a sampling tube 4; An observation seat 10, one side of which is connected to the second chamber 3 through a connecting seat 9; An optical detector 12, which is disposed on the top of the observation seat 10; The sampling drive assembly 6 is used to drive the sampling tube 4 to move down into the delivery tube 1 and reset; Wherein, a fan 7 is provided on the side of the first chamber 2; The side of the sampling tube 4 has a first hole 41 and a second hole 42 which are symmetrically arranged, and a third gauze is embedded in the second hole 42; A first sealing disk 43 is fixed to the bottom of the sampling tube 4 , and the first sealing disk 43 can be connected to the sealing tube 5 in a sealing and sliding manner.
[0020] When the sampling tube 4 is located in the second chamber 3 , the first sealing disk 43 is sealed and connected to the sealing tube 5 , and the fan 7 is in a stationary state.
[0021] In the sampling stage, the sampling drive assembly 6 is started, driving the sampling tube 4 to move down along the sealing tube 5 until the first sealing disk 43 is located below the sealing tube 5. At this time, the first hole 41 of the sampling tube 4 can contact the single-walled carbon nanotubes in the conveying tube 1. Since the conveying tube 1 has its own wind body (the wind body drives the single-walled carbon nanotubes in the conveying tube 1 to move), when the sampling tube 4 contacts the single-walled carbon nanotubes, the wind body causes part of the single-walled carbon nanotubes to enter the sampling tube 4. Since the third gauze is embedded in the second hole 42, the single-walled carbon nanotubes can be intercepted to prevent the single-walled carbon nanotubes from being discharged from the sampling tube 4 from the second hole 42. In addition, since the first hole 41 is opposite to the flow direction of the wind body in the conveying tube 1, the single-walled carbon nanotubes will not be discharged from the first hole 41.
[0022] Then, when the sampling tube 4 reaches the preset sampling volume, the sampling drive assembly 6 drives the sampling tube 4 to move upward and reset.
[0023] At this time, the fan 7 is started, and the airflow generated by the fan 7 is used to blow the single-walled carbon nanotubes in the sampling tube 4 into the observation seat 10. At the same time, the optical detector 12 is started to observe and analyze the single-walled carbon nanotubes in the observation seat 10.
[0024] After the observation and analysis, the single-walled carbon nanotubes in the observation seat 10 are sucked back to the vicinity of the sampling tube 4 by adjusting the direction and strength of the fan 7. It should be explained here that since the fan blade shape of the fan 7 is fixed, it will drive a large amount of wind flow when it rotates forward, and only a small amount of wind flow when it rotates reversely. Therefore, after the observation and analysis, the fan 7 is reversed, and the single-walled carbon nanotubes will gradually gather near the sampling tube 4, and the single-walled carbon nanotubes will not move over the sampling tube 4 and move to the vicinity of the fan 7 due to excessive wind force. In order to further prevent this situation, when recovering the single-walled carbon nanotubes, the sampling drive component 6 can drive the sampling tube 4 to move slightly downward, so that the upper surface of the first sealing disk 43 is slightly lower than the upper surface of the sealing tube 5. In this way, a pit can be formed between the first sealing disk 43 and the sealing tube 5, which is convenient for collecting the single-walled carbon nanotubes. Then, the sampling drive component 6 can drive the sampling tube 4 to move downward and send the recovered single-walled carbon nanotubes back to the conveying tube 1.
[0025] Of course, when the sealing tube 5 is initially configured, it should be ensured that the upper surface of the sealing tube 5 is flush with the inner bottom surface of the first chamber 2, and in the initial state, when the sampling tube 4 is located in the second chamber 3, the upper surface of the first sealing disk 43 is flush with the upper surface of the sealing tube 5.
[0026] In other words, the device integrates the functions of sampling, detection, and sample collection, thereby improving work efficiency and convenience of operation.
[0027] After the observation and analysis, the single-walled carbon nanotubes in the observation seat 10 are sucked back to the vicinity of the sampling tube 4 by adjusting the direction and strength of the fan 7. At this time, a problem may still arise: a small amount of single-walled carbon nanotubes will enter the sampling tube 4 through the first hole body 41. At this time, the sampling tube 4 is driven to move downward. Since the third gauze is embedded in the second hole body 42, the single-walled carbon nanotubes can be intercepted to prevent the sampling tube 4 from being discharged from the second hole body 42. In addition, since the first hole body 41 is opposite to the flow direction of the self-contained wind body in the conveying pipe 1, the single-walled carbon nanotubes will not be discharged from the first hole body 41. In this way, the small amount of single-walled carbon nanotubes in the sampling tube 4 cannot be discharged, affecting the next sampling sample. In order to solve this problem, in this embodiment, the sampling drive component 6 includes: An outer cylinder 61, which is fixedly half-embedded in the first chamber 2; A rotating drum 62 is rotatably disposed in the outer drum 61 and can slide out of the outer drum 61. The outer surface of the rotating drum 62 has two spiral grooves 621 and two axial grooves 622 that are circumferentially spaced apart. The spiral grooves 621 and the axial grooves 622 are alternately distributed and connected to form an undulating continuous groove body. A limiting clamp 65, which is arranged on the side of the outer cylinder 61 and is used for limiting the connection of the continuous trough body; A pressure rod 63, which passes through the upper wall of the outer cylinder 61 and is rotatably connected to the rotating cylinder 62, and a return spring 64 is provided between the pressure rod 63 and the outer cylinder 61; Wherein, the bottom of the rotating drum 62 is fixedly connected to the sampling tube 4; The axial groove 622 is embedded with a limiting protrusion 624, and the lower surface of the limiting protrusion 624 is matched with the corresponding spiral groove 621. Figure 3 and Figure 4 The meaning of the lower surface of the limiting protrusion 624 being matched with the corresponding spiral groove 621 is that since the spiral groove 621 and the axial groove 622 are alternately distributed and connected to form an undulating continuous groove body, at the contact position between the spiral groove 621 and the axial groove 622, part of the structure of the spiral groove 621 is replaced by the axial groove 622, and the lower surface of the limiting protrusion 624 can serve as a supplement to the part of the structure of the spiral groove 621, thereby ensuring that when the rotating drum 62 moves downward, the limiting clamp 65 can cooperate with the spiral groove 621 instead of the axial groove 622.
[0028] Therefore, when the sampling tube 4 moves downward, the pressing rod 63 is pressed down, and the rotating drum 62 slides down in the outer drum 61. Due to the alternating distribution and connection of the spiral grooves 621 and the axial grooves 622, and the action of the limit clamp 65, the rotating drum 62 is subjected to a rotational driving force (provided by the spiral grooves 621) during the sliding process.
[0029] When the drum 62 slides down to the predetermined position, it has completed a 90-degree rotation. This rotation changes the direction of the sampling tube 4, that is, the direction of the first hole 41 and the direction of the second hole 42 are changed.
[0030] When the sampling tube 4 moves upward, the pressing rod 63 is released. Due to the action of the reset spring 64, the rotating drum 62 will automatically reset and slide up to the initial position. In this process, the limit clamp 65 is located in the axial groove 622, and the rotating drum 62 will not be subjected to the driving force of rotation, so it will not rotate.
[0031] In summary, when the sampling tube 4 moves down to the specified position, it rotates 90 degrees, and when the sampling tube 4 moves up to the initial position, it does not rotate. Based on this, the motion state of the sampling tube 4 is further described: In the initial state, the sampling tube 4 is located in the second chamber 3 , and the second hole 42 faces the observation seat 10 .
[0032] The sampling drive assembly 6 is started, driving the sampling tube 4 to move downward along the sealing tube 5 until the first sealing disk 43 is located below the sealing tube 5. At this time, the sampling tube 4 rotates 90 degrees, and the first hole body 41 faces the observation seat 10. Since the conveying tube 1 has its own wind body, the wind body causes some single-walled carbon nanotubes to enter the sampling tube 4. Since the second hole body 42 is embedded with a third gauze, the single-walled carbon nanotubes can be intercepted to prevent the single-walled carbon nanotubes from being discharged from the sampling tube 4 from the second hole body 42. In addition, since the first hole body 41 is opposite to the flow direction of the wind body in the conveying tube 1, the single-walled carbon nanotubes will not be discharged from the first hole body 41.
[0033] Then, when the sampling tube 4 reaches the preset sampling volume, the sampling drive assembly 6 drives the sampling tube 4 to move up and reset. At this time, the orientation of the first hole 41 and the orientation of the second hole 42 remain unchanged, that is, the first hole 41 faces the observation seat 10.
[0034] At this time, the fan 7 is started, and the airflow generated by the fan 7 is used to blow the single-walled carbon nanotubes in the sampling tube 4 into the observation seat 10. At the same time, the optical detector 12 is started to observe and analyze the single-walled carbon nanotubes in the observation seat 10.
[0035] After the observation and analysis is completed, the single-walled carbon nanotubes in the observation seat 10 are sucked back to the vicinity of the sampling tube 4 by adjusting the direction and strength of the fan 7. At the same time, the sampling drive assembly 6 drives the sampling tube 4 to move slightly downward, so that the upper surface of the first sealing disk 43 is lower than the upper surface of the sealing tube 5. In this way, a pit can be formed between the first sealing disk 43 and the sealing tube 5, which is convenient for collecting the single-walled carbon nanotubes.
[0036] Then, the sampling drive assembly 6 drives the sampling tube 4 to move downward until the first sealing disk 43 is located below the sealing tube 5. At this time, the sampling tube 4 rotates 90 degrees, and the second hole body 42 faces the observation seat 10. Since the flow direction of the first hole body 41 is the same as that of the wind body in the conveying pipe 1, the single-walled carbon nanotubes can be smoothly discharged from the first hole body 41 to facilitate the next sampling.
[0037] Finally, the sampling tube 4 moves upward and resets. During this process, it does not rotate, and thus maintains the initial state, that is, the sampling tube 4 is located in the second chamber 3 , and the second hole 42 faces the observation seat 10 .
[0038] In this embodiment, a base 68 is fixed to one side of the outer cylinder 61, and a deflection rod 67 is hinged on the base 68. One end of the deflection rod 67 contacts the upper surface of the pressure rod 63, and the other end is hinged to the output end of the telescopic cylinder 69. The telescopic cylinder 69 is also hinged to the base 68.
[0039] That is to say, when it is necessary to drive the sampling tube 4 downward for sampling, the telescopic cylinder 69 starts to work, and its output end extends out. This extending action is converted into the downward movement of the pressing rod 63 through the deflection rod 67.
[0040] The downward movement of the pressing rod 63 drives the rotating drum 62 to slide down in the outer drum 61 , and due to the design of the spiral groove 621 and the axial groove 622 and the function of the limiting clamp 65 , the rotating drum 62 will rotate 90 degrees during the sliding process.
[0041] When sampling is completed, the output end of the telescopic cylinder 69 retracts. Due to the action of the reset spring 64 and the sliding path design of the limit clamp 65 in the continuous groove body, the rotating drum 62 does not rotate during the upward sliding process, but directly resets to the initial height.
[0042] This design converts the linear motion of the output end of the telescopic cylinder 69 into the up and down motion of the pressure rod 63 , and realizes the specific movement of the sampling tube 4 through the rotation of the rotating drum 62 .
[0043] In this embodiment, the side wall of the outer cylinder 61 extends outward as a whole to form a receiving cylinder, and the limit clamp 65 is set in the receiving cylinder along the radial sliding of the outer cylinder 61. A compression spring 66 is fixed in the receiving cylinder, and the compression spring 66 is used to provide the limit clamp 65 with a force to move toward the rotating cylinder 62.
[0044] In addition, the depth of the lowest part of the spiral groove 621 is the same as the depth of the axial groove 622, and the depth of the spiral groove 621 gradually decreases from bottom to top, so that a limiting step 623 is generated at the intersection of the axial groove 622 and the upper part of the spiral groove 621, further ensuring that when the drum 62 moves upward, the limiting chuck 65 cooperates with the axial groove 622.
[0045] In this embodiment, a roller body 101 is rotatably provided at the bottom of the observation seat 10, and micro-oscillators 102 are fixed on both sides of the roller body 101. The two micro-oscillators 102 are commonly supported and connected to an arc seat 103, and a detection plate 104 is fixed on the top of the arc seat 103.
[0046] An elastic support pad 105 for supporting the detection plate 104 is fixed to the bottom of the detection plate 104 .
[0047] When the single-walled carbon nanotubes are introduced into the observation seat 10, they may accumulate in certain areas due to gravity or unevenness during the transportation process. At this time, by adjusting the rotation of the roller body 101 and the expansion and contraction of the micro-oscillator 102, the detection plate 104 can be driven to move and tilt slightly, thereby promoting a more uniform distribution of the carbon nanotubes on the detection plate 104. The buffering effect of the elastic support pad 105 also helps to reduce the collision and accumulation of the carbon nanotubes during the distribution process, further improving the uniformity of the distribution.
[0048] In this embodiment, a second through groove is formed on a side of the observation seat 10 away from the first chamber 2, and a second gauze 11 is embedded in the second through groove to intercept the single-walled carbon nanotubes; A first through slot is formed on the side of the first chamber 2 , and a first gauze mesh 8 is embedded in the first through slot.
[0049] A second through slot is provided on one side of the observation seat 10 away from the first chamber 2. The second gauze 11 embedded in the second through slot can intercept the single-walled carbon nanotubes carried by the airflow to prevent them from escaping from the observation seat 10 while allowing air to pass freely.
[0050] A first through slot is provided on the side of the first chamber 2, and this design is also provided for air circulation. The first gauze 8 embedded in the first through slot helps to maintain the cleanliness in the first chamber 2 and prevent the single-walled carbon nanotubes from being contaminated.
[0051] A second sealing disk 44 is fixed on the sampling tube 4 . The second sealing disk 44 is located above the first hole 41 and the second hole 42 . The second sealing disk 44 can be connected to the sealing tube 5 in a sealing and sliding manner.
[0052] The second sealing disk 44 is fixed on the sampling tube 4 and is located above the first hole 41 and the second hole 42. When the sampling tube 4 moves along the sealing tube 5, the second sealing disk 44 can form a sealed sliding connection with the inner wall of the sealing tube 5.
[0053] Therefore, the first sealing disk 43 and the second sealing disk 44 form two upper and lower sealing points on the sampling tube 4. During the sampling process, the first sealing disk 43 and the second sealing disk 44 actually take on the sealing task alternately.
[0054] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A single-walled carbon nanotube material sampling device, used for obtaining single-walled carbon nanotubes from a conveying pipe (1), testing them, and then returning the single-walled carbon nanotubes to the conveying pipe (1), characterized in that: include: A first chamber (2), the bottom of which is connected to the delivery pipe (1) via a sealing pipe (5); a second chamber (3), formed inside the first chamber (2) and used for accommodating a sampling tube (4); An observation seat (10), one side of which is connected to the second chamber (3) via a connecting seat (9); An optical detector (12) disposed on the top of the observation seat (10); A sampling drive assembly (6), used for driving the sampling tube (4) to move downward into the delivery tube (1) and to reset; Wherein, a fan (7) is provided on the side of the first chamber (2); The side portion of the sampling tube (4) has a first hole body (41) and a second hole body (42) which are symmetrically arranged, and a third gauze is embedded in the second hole body (42); A first sealing disk (43) is fixed to the bottom of the sampling tube (4), and the first sealing disk (43) can be connected to the sealing tube (5) in a sealing and sliding manner.
2. A single-walled carbon nanotube material sampling device according to claim 1, characterized in that: The sampling drive component (6) comprises: An outer cylinder (61) fixedly half-embedded in the first chamber (2); a rotating cylinder (62) rotatably disposed in the outer cylinder (61) and capable of sliding out of the outer cylinder (61); the outer surface of the rotating cylinder (62) has two spiral grooves (621) and two axial grooves (622) that are circumferentially spaced apart; and the spiral grooves (621) and the axial grooves (622) are alternately distributed and connected to form an undulating continuous groove body; A limiting clamp (65), which is arranged on the side of the outer cylinder (61) and is used for limiting the connection with the continuous trough body; a pressure rod (63) which passes through the upper wall of the outer cylinder (61) and is rotatably connected to the rotating cylinder (62); a return spring (64) is provided between the pressure rod (63) and the outer cylinder (61); Wherein, the bottom of the rotating drum (62) is fixedly connected to the sampling tube (4); A limiting protrusion (624) is embedded in the axial groove (622), and the lower surface of the limiting protrusion (624) is matched with the corresponding spiral groove (621).
3. The single-walled carbon nanotube material sampling device according to claim 2, characterized in that: A base (68) is fixed to one side of the outer cylinder (61), and a deflection rod (67) is hinged on the base (68). One end of the deflection rod (67) is in contact with the upper surface of the pressure rod (63), and the other end is hinged to the output end of the telescopic cylinder (69). The telescopic cylinder (69) is also hinged to the base (68).
4. The single-walled carbon nanotube material sampling device according to claim 2, characterized in that: The side wall of the outer cylinder (61) integrally extends outward to form a receiving cylinder, and the limit clamp (65) is arranged in the receiving cylinder to slide along the radial direction of the outer cylinder (61). A compression spring (66) is fixed in the receiving cylinder, and the compression spring (66) is used to provide a force for the limit clamp (65) to move toward the rotating cylinder (62).
5. The single-walled carbon nanotube material sampling device according to claim 2, characterized in that: The depth of the lowest portion of the spiral groove (621) is the same as the depth of the axial groove (622), and the depth of the spiral groove (621) gradually decreases from bottom to top, so as to generate a limiting step (623) at the intersection of the axial groove (622) and the upper portion of the spiral groove (621).
6. The single-walled carbon nanotube material sampling device according to claim 1, characterized in that: A roller body (101) is rotatably provided at the bottom of the observation seat (10), micro-oscillators (102) are fixed on both sides of the roller body (101), and the two micro-oscillators (102) are jointly supported and connected to an arc seat (103), and a detection plate (104) is fixed on the top of the arc seat (103).
7. The single-walled carbon nanotube material sampling device according to claim 6, characterized in that: An elastic support pad (105) for supporting the detection plate (104) is also fixed to the bottom of the detection plate (104).
8. The single-walled carbon nanotube material sampling device according to claim 1, characterized in that: A second through groove is formed on a side of the observation seat (10) away from the first chamber (2), and a second gauze (11) is embedded in the second through groove for intercepting single-walled carbon nanotubes; A first through slot is provided on the side of the first chamber (2), and a first gauze net (8) is embedded in the first through slot.
9. The single-walled carbon nanotube material sampling device according to claim 1, characterized in that: A second sealing disk (44) is fixed on the sampling tube (4), the second sealing disk (44) is located above the first hole body (41) and the second hole body (42), and the second sealing disk (44) can be connected to the sealing tube (5) in a sealing and sliding manner.