A sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine

Abstract

This invention relates to the field of medicinal powder sampling, and more particularly to a medicinal powder sampling and testing device for the preparation of traditional Chinese medicine. The device includes a sampling cylinder with a cap at the top. Inside the sampling cylinder is a powder chamber with an opening at the bottom. A regulating disc for controlling the opening and closing of the feed is rotatably mounted on the top of the powder chamber. A conical hopper that can close the opening of the powder chamber is located at the bottom of the sampling cylinder. An inner rod is fixed in the center of the conical hopper, and an outer rod is slidably fitted onto the outer wall of the inner rod. The bottom of the outer rod extends into the powder chamber and is connected to a sieve filter plate. The inner rod synchronously drives the outer rod downwards, causing the conical hopper to extend for pre-sampling. The outer rod can slide independently up and down relative to the inner rod, causing the sieve filter plate to vibrate for fine sampling. This invention can effectively screen and isolate particulate impurities in the medicinal powder, effectively improving the purity of the sample powder falling into the sampling tube, achieving fine sampling, and improving the accuracy of medicinal powder sampling and testing.

Description

Technical Field

[0001] This invention relates to the field of powder sampling technology, and in particular to a powder sampling and testing device for the preparation of traditional Chinese medicine. Background Technology

[0002] In the preparation of traditional Chinese medicine (TCM), powder sampling and testing is a crucial step in ensuring the uniformity and safety of the finished product. This involves scientifically extracting representative samples from a large batch of powder and analyzing their physical properties (such as particle size, moisture content, and bulk density) and chemical indicators (such as active ingredient content and mixing uniformity). Powder sampling and testing provides reliable data support for subsequent formulation processes and is a vital cornerstone for controlling the quality of TCM products and ensuring stable efficacy.

[0003] Currently, the sampling and testing process for medicinal powder usually involves using a sampling spoon or tube to directly collect sample powder from the powder pile. However, during the grinding and preparation of medicinal powder, particulate impurities are often mixed in. This means that the directly sampled powder will also contain a lot of impurities, which will interfere with the analysis of the true medicinal properties of the powder and affect the accuracy of the analysis results. Summary of the Invention

[0004] The purpose of this invention is to provide a sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine, in order to solve the above-mentioned technical problems.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A sampling and testing device for medicinal powder in the preparation of traditional Chinese medicine includes a sampling cylinder with a cap at the top. The sampling cylinder has a powder chamber with an open bottom. An adjusting disc for controlling the opening and closing of the feed is rotatably mounted on the top of the powder chamber. A conical hopper that can close the opening of the powder chamber is located at the bottom of the sampling cylinder. An inner rod is fixed in the center of the conical hopper, and an outer rod is slidably fitted onto the outer wall of the inner rod. The bottom of the outer rod extends into the powder chamber and is connected to a sieve filter plate. The inner rod synchronously drives the outer rod to move downwards, causing the conical hopper to extend for pre-sampling. The outer rod can slide independently up and down relative to the inner rod, causing the sieve filter plate to vibrate for fine sampling. Several sampling tubes are evenly arranged at the upper end of the sampling cylinder for collecting and sampling the powder that falls into the powder chamber after it is inverted.

[0007] As a further embodiment of the present invention: the adjusting disc is rotatably mounted on the outer rod, a sealing gasket is provided at the connection between the bottom of the adjusting disc and the outer rod, and a feeding hole is uniformly provided through the adjusting disc.

[0008] As a further aspect of the present invention: a stepped portion is provided extending upward from the center of the upper end of the sampling cylinder, and an installation groove for placing the sampling tube is uniformly provided around the stepped portion at the upper end of the sampling cylinder. A drug inlet hole communicating with the powder chamber is provided through the bottom of the installation groove, and the drug inlet hole and the feeding hole are distributed in the same direction and have the same diameter.

[0009] As a further aspect of the present invention: a rotating groove is provided on the inner wall of the sampling cylinder, the adjusting disk is rotatably installed in the rotating groove, a lever is extended on one side of the adjusting disk, and a slot window is provided through the outer wall of the sampling cylinder for the lever to slide.

[0010] As a further aspect of the present invention: the rotation angle range of the lever within the slot window is 0-45°, metal blocks are provided on both sides of the lever, and magnets corresponding to the metal blocks are provided on the inner walls of both sides of the slot window.

[0011] As a further embodiment of the present invention: a through hole is provided in the center of the cylinder cover, which slides and engages with the stepped portion; elastic pressure blocks are evenly provided at the bottom of the cylinder cover, each corresponding to a sampling tube; the elastic pressure blocks abut against the top of the sampling tube; hooks extend downward on both sides of the cylinder cover; and slots are provided on both sides of the sampling tube to engage with the hooks.

[0012] As a further embodiment of the present invention: a pressing edge is provided on the outer wall of the cone bucket, the pressing edge is used to abut against the bottom of the sampling cylinder to seal the powder cavity, the top of the inner rod passes through the stepped part and is fixedly connected to a pressure plate, the bottom two ends of the pressure plate are provided with limit grooves, and the outer wall of the inner rod is provided with a drive groove.

[0013] As a further embodiment of the present invention: the top end of the outer rod passes through the stepped portion and is fixedly connected to a pressure plate two. The pressure plate two is located below the pressure plate one. Guide rods are provided at both ends of the top of the pressure plate two. The guide rods slide through the pressure plate one. A limiting plate is provided on the guide rod. The limiting plate is movably installed in the limiting groove. A top spring is provided between the bottom of the pressure plate two and the stepped portion.

[0014] As a further embodiment of the present invention: a rotating sleeve is rotatably installed at the bottom center of the screen filter plate, and a plurality of scraper strips are evenly arranged on the outer wall of the rotating sleeve. The scraper strips are attached to the surface of the screen filter plate. A driving block is provided on the inner wall of the rotating sleeve, and the driving block is adapted to be slidably installed in the driving groove.

[0015] The beneficial effects of this invention are:

[0016] (1) By setting an inner rod and an outer rod, when sampling the powder, the inner rod is pushed so that the cone extends from the bottom and is inserted into the powder to collect the powder for the first sampling. Then the inner rod retracts so that the cone closes the powder cavity again. The sampling tube is flipped upside down and the inner rod is pulled down so that the powder cavity can be kept closed. Then the outer rod is pushed to drive the sieve filter plate to vibrate up and down. The powder in the cone will fall into the sampling tube after passing through the sieve filter plate. This can effectively screen and isolate the particulate impurities in the powder, effectively improve the purity of the sample powder falling into the sampling tube, realize fine sampling, and help improve the accuracy of powder sampling and detection.

[0017] (2) By setting an adjustment plate, when the sampling tube is inverted to prepare for vibrating sieve sampling, the adjustment plate is rotated until the inlet hole and the outlet hole are aligned. At this time, the powder will fall smoothly from the powder cavity through the inlet hole and the outlet hole into the sampling tube. When the sampling tube is full of powder, the adjustment plate is rotated again until the inlet hole and the outlet hole are misaligned. At this time, the adjustment plate pushes the powder at the top of the sampling tube away and seals the inlet hole. Thus, when the sampling tube is removed, the powder in the powder cavity can be effectively prevented from escaping. The opening and closing control of powder sampling and feeding is realized by the rotation of the adjustment plate. It is easy to operate and highly practical.

[0018] (3) By setting a rotating sleeve, when the screen filter plate moves up and down to vibrate and screen the material, the rotating sleeve will also slide up and down along the inner rod with the screen filter plate. During this process, the drive block will always be constrained to slide in the drive groove and will be driven by the drive groove to drive the rotating sleeve to rotate back and forth. The rotating sleeve will drive the scraper to scrape back and forth on the surface of the screen filter plate, thereby avoiding the accumulation of medicine powder on the surface of the screen filter plate and causing blockage, effectively improving the screening and separation effect of the screen filter plate on the medicine powder. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the sampling tube in this invention.

[0022] Figure 3 This is an exploded view of the structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the sampling cylinder in this invention.

[0024] Figure 5 This is a schematic diagram of the structure of the cylinder cover in this invention.

[0025] Figure 6 This is a schematic diagram of the adjustment disc in this invention.

[0026] Figure 7 This is a schematic diagram of the inner rod in this invention.

[0027] Figure 8 This is a schematic diagram of the outer rod in this invention.

[0028] Figure 9 This is a schematic diagram of the rotating sleeve in this invention.

[0029] Figure 10 This is a schematic diagram of the state during pre-sampling in this invention.

[0030] Figure 11 This is a schematic diagram of the state during fine sampling in this invention.

[0031] In the diagram: 1. Sampling cylinder; 101. Powder chamber; 102. Rotating groove; 103. Groove window; 1031. Magnet; 104. Stepped section; 105. Mounting groove; 1051. Inlet hole; 106. Slot; 2. Cylinder cover; 201. Through hole; 202. Elastic pressure block; 203. Hook; 3. Adjusting disc; 301. Discharge hole; 302. Sealing gasket; 303. Lever 3031, Metal block; 4, Conical hopper; 401, Pressing edge; 5, Inner rod; 501, Pressure plate one; 5011, Limiting groove; 502, Drive groove; 6, Outer rod; 601, Pressure plate two; 6011, Guide rod; 6012, Limiting plate; 602, Top spring; 7, Screening filter plate; 701, Rotating sleeve; 7011, Scraper; 7012, Drive block; 8, Sampling tube. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-3As shown, this invention is a sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine. It includes a sampling cylinder 1, with a cylinder cover 2 at the top. The sampling cylinder 1 has a powder cavity 101 with an open bottom. An adjusting disc 3 for controlling the opening and closing of the feed is rotatably installed on the top of the powder cavity 101. A conical hopper 4 that can close the opening of the powder cavity 101 is provided at the bottom of the sampling cylinder 1. An inner rod 5 is fixed in the center of the conical hopper 4. An outer rod 6 is slidably fitted on the outer wall of the inner rod 5. The bottom of the outer rod 6 extends into the powder cavity 101 and is connected to a sieve filter plate 7. The inner rod 5 synchronously drives the outer rod 6 to move downward, so that the conical hopper 4 extends out for pre-sampling. The outer rod 6 can slide up and down independently relative to the inner rod 5, so that the sieve filter plate 7 vibrates for fine sampling. Several sampling tubes 8 are evenly arranged at the upper end of the sampling cylinder 1. The sampling tubes 8 are used to collect and sample the powder that falls into the powder cavity 101 after it is inverted.

[0034] Specifically, by setting the inner rod 5 and the outer rod 6, during powder sampling, pushing the inner rod 5 causes the conical hopper 4 to extend from the bottom, inserting the conical hopper 4 into the powder to collect the powder for initial sampling. Then, the inner rod 5 retracts, causing the conical hopper 4 to re-close the powder cavity 101. The sampling tube 1 is then inverted and the inner rod 5 is pulled downwards, thus keeping the powder cavity 101 closed and preventing powder spillage or the entry of external impurities. Subsequently, pushing the outer rod 6 causes the sieve filter plate 7 to vibrate up and down. The powder in the conical hopper 4 falls into the sampling tube 8 after being sieved by the sieve filter plate 7, effectively screening and isolating particulate impurities in the powder, significantly improving the purity of the sample powder falling into the sampling tube 8, achieving fine sampling, and improving the accuracy of powder sampling and testing.

[0035] like Figures 2-6 As shown, the adjusting disc 3 is rotatably mounted on the outer rod 6. A sealing gasket 302 is provided at the connection between the bottom of the adjusting disc 3 and the outer rod 6. The adjusting disc 3 is provided with a feeding hole 301 evenly distributed throughout.

[0036] Furthermore, a stepped portion 104 extends upward from the center of the upper end of the sampling cylinder 1. An installation groove 105 for placing the sampling tube 8 is evenly arranged around the stepped portion 104 at the upper end of the sampling cylinder 1. A drug inlet hole 1051 communicating with the powder chamber 101 is provided through the bottom of the installation groove 105. The drug inlet hole 1051 and the discharge hole 301 are distributed in the same way and have the same diameter.

[0037] Specifically, by setting the adjusting plate 3, when the sampling tube 1 is inverted to prepare for vibrating sieve sampling, the adjusting plate 3 is rotated until the inlet hole 1051 is aligned with the discharge hole 301. At this time, the powder can fall smoothly from the powder chamber 101 through the inlet hole 1051 and the discharge hole 301 into the sampling tube 8. When the sampling tube 8 is full of powder, the adjusting plate 3 is rotated again until the inlet hole 1051 and the discharge hole 301 are misaligned. At this time, the adjusting plate 3 pushes away the powder at the top of the sampling tube 8 and seals the inlet hole 1051. Thus, when the sampling tube 8 is removed, the powder in the powder chamber 101 can be effectively prevented from escaping. The rotation of the adjusting plate 3 realizes the opening and closing control adjustment of the powder sampling and feeding, which is convenient to operate and highly practical.

[0038] The function of the sealing gasket 302 is to improve the sealing performance between the adjusting disc 3 and the outer rod 6, and to prevent the powder from leaking out from the gap between them.

[0039] like Figure 4 and Figure 6 As shown, a rotating groove 102 is provided on the inner wall of the sampling cylinder 1, and the adjusting plate 3 is rotatably installed in the rotating groove 102. A lever 303 is extended on one side of the adjusting plate 3, and a slot window 103 is provided through the outer wall of the sampling cylinder 1 for the lever 303 to slide.

[0040] Furthermore, the rotation angle range of the lever 303 within the slot window 103 is 0-45°, and metal blocks 3031 are provided on both sides of the lever 303. Magnets 1031 corresponding to the metal blocks 3031 are provided on the inner walls of both sides of the slot window 103.

[0041] Specifically, the lever 303 allows operators to better control the rotation of the adjusting disc 3. However, the lever 303 is restricted to rotation only within the slot 103, and its rotation range needs to be adjusted according to the number of discharge holes 301. In this embodiment, there are four discharge holes 301. When the adjusting disc 3 rotates 90°, the discharge hole 301 will align with the adjacent discharge hole again. Therefore, it is necessary to limit the rotation angle range of the adjusting disc 3 so that the discharge hole and discharge hole 301 can only align once during a complete rotation. In this embodiment, the maximum rotation angle of the adjusting disc 3 is 45°. Initially, the discharge hole and discharge hole 301 are aligned. When the adjusting disc 3 rotates 45°, it ensures that the discharge hole and the small discharge hole are staggered, thereby guaranteeing the stability of the opening and closing control.

[0042] More specifically, when the lever 303 is rotated to the limit position at one end of the slot window 103, the metal block 3031 on the lever 303 will be attracted by the magnet 1031, thereby preventing the adjustment disk 3 from easily shaking after being rotated to the correct position. At the same time, when the lever 303 is moved in the opposite direction for adjustment, the magnetic attraction can also transmit resistance to the operator's fingers. The operator can clearly perceive the movement state of the lever 303 through the resistance feedback of the fingers, so that the operator can accurately rotate and adjust the adjustment disk 3 through the lever 303 even without visual observation.

[0043] like Figure 2 and Figure 5 As shown, a through hole 201 is provided in the center of the cylinder cover 2, which slides and engages with the stepped part 104. Elastic pressure blocks 202 are evenly provided at the bottom of the cylinder cover 2, corresponding to the sampling tubes 8 one by one. The elastic pressure blocks 202 abut against the top of the sampling tubes 8. Hooks 203 are provided on both sides of the cylinder cover 2 extending downward. Slots 106 are provided on both sides of the sampling cylinder 1, which engage with the hooks 203.

[0044] Specifically, the quick assembly and disassembly of the cylinder cover 2 and the sampling cylinder 1 are achieved by using the snap-fit ​​between the hook tongue 203 and the slot 106. When the cylinder cover 2 is closed, the elastic pressure block 202 will press against the sampling tube 8, so that the bottom opening of the sampling tube 8 can be pressed against the bottom of the mounting groove 105. In this way, when the sampling cylinder 1 is inverted, all the powder falling from the discharge hole will enter the sampling tube 8, thereby preventing the powder from escaping from the gaps caused by the loosening of the sampling tube 8.

[0045] like Figures 2-11 As shown, a pressing edge 401 is provided on the outer wall of the cone 4. The pressing edge 401 is used to abut against the bottom of the sampling cylinder 1 to seal the powder cavity 101. The top of the inner rod 5 passes through the stepped part 104 and is fixedly connected to the pressure plate 501. The bottom ends of the pressure plate 501 are provided with limit grooves 5011. The outer wall of the inner rod 5 is provided with a drive groove 502.

[0046] Specifically, when the sampling cylinder 1 is inverted in preparation for sampling, the inner rod 5 is pulled down and the edge 401 is pressed tightly against the top of the sampling cylinder 1, thus ensuring the sealing of the sampling environment. This prevents the powder inside the cone 4 from spreading and escaping to the outside when the cone 4 is flipped, and also prevents external dust particles from entering the sampling cylinder 1.

[0047] like Figures 2-11As shown, the top of the outer rod 6 passes through the stepped portion 104 and is fixedly connected to the pressure plate 601. The pressure plate 601 is located below the pressure plate 501. Guide rods 6011 are provided at both ends of the top of the pressure plate 601. The guide rods 6011 slide through the pressure plate 501. A limit plate 6012 is provided on the guide rod 6011. The limit plate 6012 is movably installed in the limit groove 5011. A top spring 602 is provided between the bottom of the pressure plate 601 and the stepped portion 104.

[0048] Specifically, by setting up pressure plate one 501 and pressure plate two 601, when taking the initial sample, pressing down on pressure plate one 501 causes the limiting groove 5011 to block and limit the limiting plate 6012, thus simultaneously pressing down on pressure plate two 601, causing the top spring 602 to compress and deform, and causing the inner rod 5 and the top rod to move down synchronously until the cone hopper 4 extends from the bottom to hold and collect the sample. Figure 10 As shown. When performing vibratory sieving sampling, the sampling cylinder 1 is inverted and presses down on the pressure plate 501. The inner rod 5 remains fixed. At this time, the outer rod 6 is raised upward by the pressure plate 601, and the top spring 602 causes the sieve filter plate 7 to move up and down reciprocally in the powder chamber 101, thereby achieving the vibratory sieving effect on the powder. This effectively prevents particulate impurities in the powder from falling into the sampling tube 8. Figure 11 As shown.

[0049] It should be noted that after sampling, the cap 2 needs to be removed and moved downwards to allow the sampling tube 8 to be exposed for easy removal. To ensure that the cap 2 can move downwards smoothly after removal, the orthographic projections of the first pressure plate 501 and the second pressure plate 601 on the stepped portion 104 will not exceed the stepped portion 104, so that the cap 2 will not be obstructed or interfered with during the downward movement.

[0050] like Figure 9 As shown, a rotating sleeve 701 is rotatably installed at the bottom center of the screen filter plate 7. Several scraper strips 7011 are evenly arranged on the outer wall of the rotating sleeve 701. The scraper strips 7011 are attached to the surface of the screen filter plate 7. A driving block 7012 is provided on the inner wall of the rotating sleeve 701. The driving block 7012 is adapted to slide and install in the driving groove 502.

[0051] Specifically, by setting the rotating sleeve 701, when the screening filter plate 7 moves up and down to vibrate and screen the material, the rotating sleeve 701 will also slide up and down along the inner rod 5 along with the screening filter plate 7. During this process, the driving block 7012 will always be constrained to slide within the driving groove 502 and will be driven by the driving groove 502 to drive the rotating sleeve 701 to rotate back and forth. The rotating sleeve 701 will drive the scraper 7011 to scrape back and forth on the surface of the screening filter plate 7, thereby avoiding the accumulation of medicine powder on the surface of the screening filter plate 7 and causing blockage, effectively improving the screening and separation effect of the screening filter plate 7 on the medicine powder.

[0052] The working principle of this invention is as follows: Figures 1-11 As shown, during use, the operator first presses down on the pressure plate 501. The pressure plate 501 then simultaneously presses down on the pressure plate 601, compressing the top spring 602. This causes the inner rod 5 and the top rod to move downwards synchronously until the conical hopper 4 extends from the bottom. The conical hopper 4 is then inserted into the powder to collect the powder for initial sampling. Afterwards, the pressure plate 501 is released, the inner rod 5 retracts, and the conical hopper 4 re-closes the powder chamber 101. The adjusting disc 3 is rotated using the lever 303 to align the discharge hole 301 with the feed hole. Then, the sampling cylinder 1 is inverted and the pressure plate 501 is pressed down. The inner rod 5 remains fixed. At this time, the outer rod 6 is raised by the pressure plate 601, and the top spring 602 causes the sieve filter plate 7 to move up and down within the powder chamber 101, thus achieving a vibrating sieve effect on the powder. The rotating sleeve 701 will drive the scraper 7011 to scrape back and forth on the surface of the sieve filter plate 7, thereby preventing the powder from accumulating on the surface of the sieve filter plate 7 and causing blockage. When the sampling tube 8 is full of powder, the adjusting plate 3 is rotated again until the inlet hole 1051 is misaligned with the outlet hole 301. At this time, the adjusting plate 3 pushes away the powder at the top of the sampling tube 8 and seals the inlet hole 1051. Finally, the cylinder cover 2 is removed and slowly moved downwards, and the sampling tube 8 is taken out from the sampling cylinder 1 for powder detection and analysis.

[0053] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine, comprising a sampling cylinder (1), characterized in that, The sampling cylinder (1) is covered with a cap (2) at the top. The sampling cylinder (1) has a powder chamber (101) with an open bottom. An adjusting disc (3) for controlling the opening and closing of the feed is rotatably installed on the top of the powder chamber (101). The bottom of the sampling cylinder (1) has a conical hopper (4) that can close the opening of the powder chamber (101). An inner rod (5) is fixed in the center of the conical hopper (4). An outer rod (6) is slidably fitted on the outer wall of the inner rod (5). The bottom extends into the powder chamber (101) and is connected to a sieve filter plate (7). The inner rod (5) synchronously drives the outer rod (6) to move downward, so that the cone (4) extends out for pre-sampling. The outer rod (6) can slide up and down independently relative to the inner rod (5), so that the sieve filter plate (7) vibrates for fine sampling. Several sampling tubes (8) are evenly arranged at the upper end of the sampling cylinder (1). The sampling tubes (8) are used to collect and sample the powder that falls into the powder chamber (101) after it is inverted. The adjusting disc (3) is rotatably mounted on the outer rod (6). A sealing gasket (302) is provided at the connection between the bottom of the adjusting disc (3) and the outer rod (6). A feeding hole (301) is uniformly provided through the adjusting disc (3). The sampling cylinder (1) has a stepped section (104) extending upward from the center of its upper end. The upper end of the sampling cylinder (1) is evenly provided with mounting grooves (105) for placing sampling tubes (8) around the stepped section (104). The bottom of the mounting groove (105) is provided with a drug inlet hole (1051) that communicates with the powder chamber (101). The drug inlet hole (1051) and the discharge hole (301) are distributed in the same way and have the same diameter. The sampling tube (1) has a rotating groove (102) on its inner wall. The adjusting plate (3) is rotatably installed in the rotating groove (102). A lever (303) extends from one side of the adjusting plate (3). A slot window (103) is provided through the outer wall of the sampling tube (1) for the lever (303) to slide.

2. The sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine according to claim 1, characterized in that, The rotation angle range of the lever (303) within the slot window (103) is 0-45°. Metal blocks (3031) are provided on both sides of the lever (303), and magnets (1031) corresponding to the metal blocks (3031) are provided on the inner walls of both sides of the slot window (103).

3. The sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine according to claim 1, characterized in that, The cylinder cover (2) has a through hole (201) that slides through the stepped part (104) in the center. The bottom of the cylinder cover (2) is evenly provided with elastic pressure blocks (202) that correspond one-to-one with the sampling tube (8). The elastic pressure blocks (202) abut against the top of the sampling tube (8). Hooks (203) extend downward on both sides of the cylinder cover (2). The sampling tube (1) has slots (106) on both sides that engage with the hooks (203).

4. The sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine according to claim 3, characterized in that, The outer wall of the cone (4) is provided with a pressing edge (401), which is used to abut against the bottom of the sampling cylinder (1) to close the powder chamber (101). The top of the inner rod (5) passes through the stepped part (104) and is fixedly connected to the pressure plate (501). The bottom ends of the pressure plate (501) are provided with limit grooves (5011). The outer wall of the inner rod (5) is provided with a driving groove (502).

5. The sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine according to claim 4, characterized in that, The top of the outer rod (6) passes through the stepped part (104) and is fixedly connected to the pressure plate two (601). The pressure plate two (601) is located below the pressure plate one (501). The top two ends of the pressure plate two (601) are provided with guide rods (6011). The guide rods (6011) slide through the pressure plate one (501). The guide rods (6011) are provided with limit plates (6012). The limit plates (6012) are movably installed in the limit groove (5011). The bottom of the pressure plate two (601) and the stepped part (104) are provided with top springs (602).

6. The sampling and testing device for medicinal powder used in the preparation of traditional Chinese medicine according to claim 4, characterized in that, A rotating sleeve (701) is rotatably installed at the bottom center of the screen filter plate (7). Several scraper strips (7011) are evenly arranged on the outer wall of the rotating sleeve (701). The scraper strips (7011) are attached to the surface of the screen filter plate (7). A driving block (7012) is provided on the inner wall of the rotating sleeve (701). The driving block (7012) is adapted to slide in the driving groove (502).

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