Chemical reagent uniform mixing and extracting equipment for laboratory and use method of chemical reagent uniform mixing and extracting equipment

Abstract

The invention belongs to the technical field of reagent extraction, and particularly relates to chemical reagent uniform mixing and extracting equipment for a laboratory and a using method thereof.The chemical reagent uniform mixing and extracting equipment comprises a base, a rotary drum is rotationally installed on the base through a motor, a storage barrel is detachably installed on the rotary drum, and a rear frame is arranged on the rear portion of the base. The central cylinder drives the plurality of injectors to circularly work to form an extraction-transfer-sample adding assembly line, so that when a chemical reagent is extracted into a test tube, the sampling of multiple parts of the reagent can be continuously completed, and by regulating and controlling the downward moving range of the sliding frame, the sampling efficiency is greatly improved. When the liquid level drops after the reagent in the storage barrel is extracted for a certain number of times, the injector on the sliding frame can always extract the chemical reagent in the storage barrel, and the position of the rectangular piece can be accurately controlled when the pointer slides on the graduated scale by lifting the lifting plate on the rectangular piece.

Description

Technical Field

[0001] This invention belongs to the field of reagent extraction technology, specifically a laboratory chemical reagent uniform mixing and extraction device and its usage method. Background Technology

[0002] In the field of chemistry, "reagent" is a core concept. It can be understood as a pure substance used to achieve chemical reactions, detection and analysis, synthesis and preparation, or research and testing. It mainly refers to pure chemicals used in chemical reactions, analysis and testing, research experiments, teaching experiments, and chemical formulations. Generally, they are classified according to their uses into general reagents, high-purity reagents, analytical reagents, instrumental analysis reagents, clinical diagnostic reagents, biochemical reagents, inorganic ion colorimetric reagents, etc. They can be said to be the eyes of chemists. Chemical reagents are indispensable in the daily work of factories, schools, hospitals, and research institutes. Polymer reagents are a class of chemical reagents developed by combining polymers that act as a skeleton with compounds or active groups that act as chemical reactants, absorbing the advantages of both. They are widely used in biochemistry, organic synthesis, organometallic chemistry, special separation, hydrometallurgy, and analytical chemistry.

[0003] The prior art discloses Chinese Patent Application No. CN202110385050.6, which discloses an extraction device and extraction process for detecting polymer chemical reagents. It also discloses a clamping mechanism that can clamp glass tubes of different sizes loaded with reagents. The extraction mechanism can realize the simultaneous extraction and automatic mixing of multiple reagents, thereby greatly improving the efficiency of the overall operation. At the same time, both individual glass tubes and mixed reagents can be centrifuged to avoid reagent chromatography and improve the mixing speed and uniformity of the mixed reagents.

[0004] Although the above-mentioned device can agitate the reagent to be extracted during reagent extraction, it still has some drawbacks in use: 1. Many chemical reagents or suspensions, after standing, will undergo separation, precipitation, or stratification due to differences in density or reactions among their internal components (e.g., certain extracts, slurry catalysts, cell lysates, etc.). If samples are taken directly from the standing container, the composition and concentration of the samples taken first and later will differ significantly, leading to inaccurate and unreproducible results in subsequent experiments or production.

[0005] 2. After multiple extractions of reagent from the storage container, the liquid level will gradually decrease. If the syringe plunge depth remains constant, the needle tip may fail to reach the liquid surface after several extractions, resulting in "air suction." This will introduce air bubbles into the sample, leading to inaccurate dispensing volumes and reagent waste. Summary of the Invention

[0006] The purpose of this invention is to provide a laboratory chemical reagent uniform mixing and extraction device and its usage method, in order to solve the problem mentioned in the background art of how to ensure that the syringe aspiration end can always be safely and effectively immersed below the liquid surface when the reagent liquid level continues to drop, thereby ensuring the continuity and accuracy of liquid extraction.

[0007] The objective of this invention can be achieved through the following technical solutions: A laboratory chemical reagent uniform mixing and extraction device includes a base, a rotating drum mounted on the base via a motor, a storage container detachably mounted on the rotating drum, a rear frame at the rear of the base, an electric push plate mounted on the rear frame via a long plate, a fixed frame fixedly mounted on the rear frame, a central cylinder mounted in the middle of the fixed frame via a dual-axis motor, a linkage part on the output shaft of the other end of the dual-axis motor, multiple sets of circumferentially arranged slides slidably mounted on the central cylinder, syringes for extracting reagents are held in the slides, a suction rod is slidably mounted inside the syringes, a volume control group is also provided on the slides for precise control of the amount of reagent extracted, a rotating ring mounted on the upper part of the central cylinder via a motor, a synchronization component for controlling multiple volume control groups is circumferentially arranged outside the rotating ring, a drive group is also provided on one side of the base, a cylinder is fixedly mounted on the side of the base away from the drive group, a disc is fixedly mounted on the cylinder, a turntable is mounted on the disc via a motor, and multiple sets of test tubes are placed on the turntable.

[0008] Preferably, the central cylinder has circumferentially arranged vertical grooves, a threaded rod is rotatably mounted on the top of the central cylinder, and a movable part that slides within multiple vertical grooves is rotatably mounted on the top of the threaded rod. A spring is connected between the bottom of multiple carriages and the movable part.

[0009] Preferably, the synchronization component includes multiple sets of side frames fixed to the outer edge of the rotating ring and arranged in a circumferential direction. A pressing rod is slidably installed on the side frame. A roller is fixedly provided on the top of the pressing rod. A spring is sleeved on the outside of the pressing rod and the spring is located between the roller and the side frame. A guide plate is fixedly installed on one side of the bottom of the side frame. A toothed plate is slidably installed on the guide plate.

[0010] Preferably, a connector is fixedly installed on one side of the bottom of the toothed plate, an outer rod is rotatably installed in the middle of the connector, and a gear that meshes with the toothed plate is fixedly installed on the top of the outer rod. The control assembly includes a rectangular piece fixed to the slide, an inner rod is rotatably installed in the middle of the rectangular piece, one end of the inner rod is cross-shaped and slides up and down with the cross groove inside the outer rod.

[0011] Preferably, the inner rod is a threaded section inside the rectangular part, and a lifting plate is rotatably mounted on the threaded section. A U-shaped plate is fixedly mounted on one end of the lifting plate and sleeved outside the suction rod. A scale is fixedly mounted on the rectangular part, and a pointer fixed to the lifting plate is slidably mounted on the scale. A top plate is fixedly mounted on the top of the suction rod, and a side block located below the U-shaped plate is fixedly mounted on the side of the suction rod.

[0012] Preferably, the linkage includes a vertical shaft and a side plate connected to the fixed frame. A rotating rod is rotatably mounted on the side plate. Both the ends of the vertical shaft and the rotating rod are equipped with meshing bevel gears. The rotating rod is also equipped with a pressing wheel.

[0013] Preferably, the drive assembly includes a support frame, on which a rocker is rotatably mounted. A positioning plate is provided on one side of the rocker, and a lifting plate is connected to the positioning plate via a spring rod. An L-shaped plate located above the rocker is fixedly mounted on one side of the support frame, and a shaft is rotatably mounted on the L-shaped plate. A cam is fixedly mounted at the end of the shaft, and a belt pulley mechanism is provided between the shaft and the rotating rod for transmission.

[0014] Preferably, the turntable is provided with multiple sets of placement buckets, and test tubes are placed in the placement buckets for placement. A stabilizing group is provided outside the placement buckets to fix the test tubes. An electric push rod is fixedly installed in the middle of the turntable, and a connecting frame is fixedly installed on the top of the electric push rod. A lifting ring arranged in a ring is fixedly installed on the outer edge of the connecting frame, and multiple lifting rings are located outside multiple placement buckets respectively.

[0015] Preferably, the stabilizing assembly includes two ear plates symmetrically arranged outside the placement barrel. An abutment plate is rotatably installed on the ear plate. A moving shaft is slidably installed on the end of the two abutment plates that are close to each other. A limiting plate is provided on the moving shaft on both sides, which is arranged alternately.

[0016] Another object of the present invention is to provide a method for using a laboratory chemical reagent uniform mixing and extraction device, comprising the following steps: S1: Continuous extraction: The dual-axis motor drives the central cylinder to rotate intermittently, causing multiple sets of slides on the central cylinder to rotate sequentially to the top of the storage container. When any set of slides rotates to the top of the storage container, the linkage unit simultaneously causes the slide above the storage container to be squeezed and moved downward on the central cylinder, so that the lower part of the syringe is inside the storage container for extraction. When the linkage unit moves any set of slides downward, it can also activate the drive unit to allow the syringe to extract the chemical reagent from the storage container. After the syringe that has extracted the reagent rotates to the top of the test tube, the electric push plate opens to press down the suction rod, thereby placing the reagent in the syringe into the test tube. S2: Quantitative preset: Before the equipment is put into operation, the aspiration volume of each syringe is preset by setting the volume control group on each carriage.

[0017] The beneficial effects of this invention are: 1. This invention utilizes a turret-style design with multiple syringes. The central cylinder drives multiple syringes in a cyclical operation, forming an "extraction-transfer-sampling" production line. This allows for continuous sampling of multiple reagents while extracting them into test tubes. Furthermore, when extracting reagents from the storage container, the motor activates to drive the turret, causing the storage container to rotate. This rotation centrifuges the reagents inside, preventing separation and stratification of the reagents during static storage and ensuring consistent purity each time the reagents are extracted from the storage container.

[0018] 2. By adjusting the downward movement range of the slide, this invention ensures that when the liquid level in the storage container drops after a certain number of extractions, the moving part moves downward in the vertical groove. This ensures that the downward movement range of the slide increases synchronously after being squeezed, thus ensuring that the syringe on the slide can always extract chemical reagents from the storage container.

[0019] 3. This invention uses a lifting plate to raise and lower a rectangular component. When the pointer slides on the scale, the position of the rectangular component can be precisely controlled. When the suction rod moves upward inside the syringe, the side block of the suction rod is blocked by the U-shaped plate at the end of the lifting plate. This allows the syringe to precisely control the amount of chemical reagent drawn, ensuring that the volume drawn each time is highly consistent with the scale setting value, resulting in excellent repeatability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure between the synchronization component and the central cylinder of the present invention; Figure 3 This is a schematic diagram of the upper structure of the carriage of the present invention; Figure 4 This is the present invention. Figure 3 A schematic diagram of the enlarged structure of part B; Figure 5 This is the present invention. Figure 3 A magnified structural diagram of part A; Figure 6 This is a schematic diagram of the central tube structure of the present invention; Figure 7 This is a schematic diagram of the drive component structure of the present invention; Figure 8 This is a schematic diagram of the upper structure of the disk of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure between the disk and the base of the present invention.

[0022] The attached figures are labeled as follows: 1. Base; 10. Rear frame; 11. Fixed frame; 12. Electric push plate; 2. Center cylinder; 20. Vertical groove; 201. Threaded rod; 202. Moving part; 21. Slide; 22. Injector; 221. Suction rod; 222. Side block; 223. Top plate; 23. Rotary ring; 231. Side frame; 232. Extrusion rod; 233. Roller; 234. Guide plate; 235. Toothed plate; 24. Rectangular part; 241. Connector; 242. External rod; 243. Gear; 244. Internal rod; 245. Lifting plate; 246. 1. Scale; 247. Pointer; 248. U-shaped plate; 3. Side plate; 30. Rotating rod; 31. Extrusion wheel; 4. Support frame; 40. Rocker; 41. Positioning plate; 42. Spring rod; 43. Lifting plate; 44. L-shaped plate; 45. Shaft; 46. Cam; 5. Storage bucket; 6. Turntable; 61. Cylinder; 62. Disc; 63. Placement bucket; 631. Ear plate; 632. Abutment plate; 633. Moving shaft; 634. Limiting plate; 635. Electric push rod; 636. Connecting frame; 637. Lifting ring; 64. Test tube. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-9As shown, this invention is a laboratory chemical reagent uniform mixing and extraction device, including a base 1, a rotating drum mounted on the base 1 via a motor, a storage container 5 detachably mounted on the rotating drum, a rear frame 10 at the rear of the base 1, an electric push plate 12 mounted on the rear frame 10 via a long plate, a fixed frame 11 fixedly mounted on the rear frame 10, a central cylinder 2 mounted in the middle of the fixed frame 11 via a dual-axis motor, a linkage part on the output shaft of the other end of the dual-axis motor, and multiple sets of circumferentially arranged slides 21 slidably mounted on the central cylinder 2, the slides 21 holding a pair of The syringe 22 is used for reagent extraction. A suction rod 221 is slidably installed inside the syringe 22. The slide 21 is also equipped with a volume control group to precisely control the amount of reagent extracted. A rotating ring 23 is installed on the upper part of the central cylinder 2 by a motor. A synchronization component for controlling multiple volume control groups is provided around the outside of the rotating ring 23. A drive group is also provided on one side of the base 1. A cylinder 61 is fixedly installed on the side of the base 1 away from the drive group. A disc 62 is fixedly installed on the cylinder 61. A turntable 6 is installed on the disc 62 by a motor. Multiple sets of test tubes 64 are placed on the turntable 6. The motor drives the central cylinder 2 to rotate, which in turn drives multiple sets of slides 21 to rotate. As these slides 21 rotate and shift along the central cylinder 2, the syringes 22 on each slide 21 rotate sequentially to the top of the storage container 5. While the central cylinder 2 rotates, the linkage mechanism also drives a synchronization component. This synchronization component moves the slides 21 that have rotated to the top of the storage container 5 downwards on the central cylinder 2, causing the corresponding syringes 22 to descend and approach the storage container 5. Simultaneously, the synchronization component also activates the drive unit, causing the drive unit to lift the suction rod 221 on the syringe 22. As the suction rod 221 rises, it... The chemical reagents in storage container 5 are drawn into syringes 22. The rotation of the central cylinder 2 allows multiple syringes 22 to continuously draw reagents from storage container 5. As the central cylinder 2 rotates, the syringes 22 that have completed reagent drawing are also rotated above the turntable 6. When any syringe 22 rotates above a test tube 64 on one side, the electric push plate 12 is activated and pushed down, pressing the suction rod 221 on the syringe 22, thereby injecting the chemical reagents from the syringe 22 into the test tube 64 for subsequent testing. The motor drives the rotating cylinder to rotate the storage container 5 synchronously, ensuring that each syringe 22 draws reagents continuously. This invention ensures that highly homogeneous liquid samples can be obtained, which is crucial for experiments requiring sampling from a homogeneous liquid phase. It avoids concentration differences caused by different extraction locations. The invention employs a turret-type design for multiple syringes 22, with the central cylinder 2 driving multiple syringes 22 in a cyclical operation, forming an "extraction-transfer-sampling" production line. While one syringe 22 is performing sample addition (injection into test tube 64), another syringe 22 can simultaneously perform extraction in the storage container 5, significantly reducing the total time for processing multiple samples. Through precise control of the volume control group and synchronization components, the volume of reagent extracted by each syringe 22 from the storage container 5 is strictly controlled. This invention minimizes random errors caused by manual operation, significantly improving the repeatability and reliability of experimental data. This is particularly important for experiments in fields such as quantitative analysis and drug screening. Compared with existing devices, this invention can continuously complete multiple samplings of reagents while extracting them into test tubes 64. Furthermore, when extracting reagents from storage tank 5, the motor is activated to drive the rotating drum, causing storage tank 5 to rotate. During rotation, the chemical reagents inside storage tank 5 are centrifuged, preventing separation and stratification of the chemical reagents when left to stand, thus ensuring consistent purity each time the reagents are extracted from storage tank 5.

[0025] The central cylinder 2 has circumferentially arranged vertical grooves 20. A threaded rod 201 is rotatably mounted on the top of the central cylinder 2. A movable component 202, which slides within multiple vertical grooves 20, is rotatably mounted on the top of the threaded rod 201. A spring connects the bottom of multiple slides 21 to the movable component 202. When the slides 21 are pressed, they slide downwards within the vertical grooves 20, compressing the springs. When the slides 21 are released from compression, the springs allow them to return to their original position and move upwards within the vertical grooves 20. Furthermore, rotating the threaded rod 201 allows the movable component 202 to move up and down within the multiple vertical grooves 20. After lifting and lowering, the lower part of the squeezing rod 232, in conjunction with the moving part 202, can extend and retract to adjust the downward movement range of the slide 21 after being squeezed. Since the liquid level inside the storage tank 5 decreases as the number of extractions increases, by adjusting the downward movement range of the slide 21, it can be ensured that when the liquid level in the storage tank 5 drops after a certain number of extractions, the moving part 202 moves downward within the vertical groove 20. This ensures that the downward movement range of the slide 21 increases synchronously after being squeezed, thereby ensuring that the syringe 22 on the slide 21 can always extract the chemical reagents from the storage tank 5.

[0026] The synchronization assembly includes multiple sets of side frames 231 fixed to the outer edge of the rotating ring 23 and arranged in a circumferential direction. A pressing rod 232 is slidably mounted on the side frame 231. A roller 233 is fixedly mounted on the top of the pressing rod 232. A spring is sleeved on the outside of the pressing rod 232, with the spring located between the roller 233 and the side frame 231. A guide plate 234 is fixedly mounted on one side of the bottom of the side frame 231. A toothed plate 235 is slidably mounted on the guide plate 234. The lower part of the pressing rod 232 is telescopic. By telescopically extending the pressing rod 232, the length of the pressing rod 232 can be quantitatively controlled. When the pressing rod 232 is subjected to… When the linkage unit slides down on the side frame 231, it can press down on the slide 21, thereby ensuring that the slide 21 drives the syringe 22 to move down and approach the storage tank 5 so that the syringe 22 can extract chemical reagents. When the rotating ring 23 rotates, it can drive multiple side frames 231 to rotate. When multiple side frames 231 rotate, they drive multiple toothed plates 235 to rotate synchronously through the guide plate 234. When the toothed plates 235 rotate, they drive the gear 243 to rotate. The gear 243 drives the inner rod 244 to rotate through the outer rod 242, ultimately causing the lifting plates 245 in multiple rectangular parts 24 to rise and fall synchronously.

[0027] A connector 241 is fixedly installed on one side of the bottom of the toothed plate 235. An outer rod 242 is rotatably installed in the middle of the connector 241. A gear 243 that meshes with the toothed plate 235 is fixedly installed on the top of the outer rod 242. The control assembly includes a rectangular piece 24 fixed to the slide 21. An inner rod 244 is rotatably installed in the middle of the rectangular piece 24. One end of the inner rod 244 is cross-shaped and slides up and down with the cross groove inside the outer rod 242. Through the arrangement of the inner rod 244 and the outer rod 242, the inner rod 244 can rotate with the outer rod 242. As the rectangular piece 24 descends with the slide 21, the inner rod 244 can also slide down inside the outer rod 242.

[0028] The inner rod 244 has a threaded section inside the rectangular piece 24. A lifting plate 245 is rotatably mounted on the threaded section. A U-shaped plate 248, which is sleeved outside the suction rod 221, is fixedly mounted on one end of the lifting plate 245. A scale 246 is fixedly mounted on the rectangular piece 24, and a pointer 247, which is fixed to the lifting plate 245, is slidably mounted on the scale 246. A top plate 223 is fixedly mounted on the top of the suction rod 221, and a side block 222, located below the U-shaped plate 248, is fixedly mounted on the side of the suction rod 221. The lifting plate 245 moves up and down on the rectangular piece 24. At this time, the pointer 247 slides on the scale 246 to accurately control the position of the rectangular piece 24. When the suction rod 221 moves up inside the syringe 22, the side block 222 of the suction rod 221 is blocked by the U-shaped plate 248 at the end of the lifting plate 245. This allows the syringe 22 to accurately control the amount of chemical reagent drawn, ensuring that the volume drawn each time is highly consistent with the scale setting value, with excellent repeatability.

[0029] The linkage includes a vertical shaft 110 and a side plate 3 connected to the fixed frame 11. A rotating rod 30 is rotatably mounted on the side plate 3. Both the ends of the vertical shaft 110 and the rotating rod 30 are equipped with meshing bevel gears. The rotating rod 30 is also equipped with a pressing wheel 31. The bevel gears enable the central cylinder 2 to rotate while driving the rotating rod 30. When the rotating rod 30 rotates, it drives the pressing wheel 31 to rotate. When the roller 233 on either side frame 231 rotates to a position below the pressing wheel 31, the pressing wheel 31 rotates and presses the roller 233, thereby... The squeezing rod 232 moves down, causing the corresponding slide 21 to move down. At this time, the top plate 223 on the slide 21 is positioned above the drive group. When the rotating rod 30 rotates, it drives the cam 46 in the drive group to rotate through the pulley mechanism. When the cam 46 rotates, it presses down one side of the rocker 40. At this time, the lifting plate 43 on the other side of the rocker 40 lifts the top plate 223. When the top plate 223 is lifted, it moves up in the syringe 22 through the suction rod 221, thereby drawing the chemical reagent in the storage container 5 into the syringe 22.

[0030] The drive assembly includes a support frame 4, on which a rocker 40 is rotatably mounted. A positioning plate 41 is provided on one side of the rocker 40. A lifting plate 43 is connected to the positioning plate 41 via a spring rod 42. An L-shaped plate 44 located above the rocker 40 is fixedly mounted on one side of the support frame 4. A shaft 45 is rotatably mounted on the L-shaped plate 44. A cam 46 is fixedly mounted at the end of the shaft 45. A belt pulley mechanism is provided between the shaft 45 and the rotating rod 30 for transmission.

[0031] The turntable 6 is equipped with multiple sets of placement buckets 63. Test tubes 64 are placed inside the placement buckets 63. Stabilizing groups are provided outside the placement buckets 63 to fix the test tubes 64. An electric push rod 635 is fixedly installed in the middle of the turntable 6. A connecting frame 636 is fixedly installed on the top of the electric push rod 635. A circumferentially arranged lifting ring 637 is fixedly installed on the outer edge of the connecting frame 636. Multiple lifting rings 637 are located outside multiple placement buckets 63. By pushing the electric push rod 635 upward, the connecting frame 636 can drive the multiple lifting rings 637 to move upward. When the lifting rings 637 move upward, the two abutment plates 632 on the placement buckets 63 flip, thereby abutting the test tubes 64 inside the placement buckets 63 to keep the test tubes 64 stable inside the placement buckets 63.

[0032] The stabilizing assembly includes two ear plates 631 symmetrically arranged outside the placement barrel 63. An abutment plate 632 is rotatably mounted on the ear plate 631. A moving shaft 633 is slidably mounted on the end of the two abutment plates 632 that are close to each other. A limiting plate 634 is provided on the moving shaft 633 on both sides, which is arranged alternately.

[0033] Another object of the present invention is to provide a practical method for a laboratory chemical reagent uniform mixing and extraction device, comprising the following steps: S1: Continuous extraction: The dual-axis motor drives the central cylinder 2 to rotate intermittently, causing multiple sets of slides 21 on the central cylinder 2 to rotate sequentially to the top of the storage container 5. When any set of slides 21 rotates to the top of the storage container 5, the linkage unit simultaneously causes the slide 21 located above the storage container 5 to be squeezed and moved downward on the central cylinder 2, so that the lower part of the syringe 22 is located inside the storage container 5 for extraction. When the linkage unit causes any set of slides 21 to move downward, it can also activate the drive unit to allow the syringe 22 to extract the chemical reagent from the storage container 5. After the syringe 22, which has extracted the reagent, rotates to the top of the test tube 64, the electric push plate 12 opens to press down the suction rod 221, thereby placing the reagent in the syringe 22 into the test tube 64. S2: Quantitative preset: Before the equipment is put into operation, the aspiration volume of each syringe 22 is preset by setting the volume control group on each slide 21.

[0034] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A laboratory chemical reagent uniform mixing and extraction device, comprising a base (1), characterized in that, A rotating drum is mounted on the base (1) via a motor, and a storage bucket (5) is detachably mounted on the rotating drum. A rear frame (10) is provided at the rear of the base (1). An electric push plate (12) is mounted on the rear frame (10) via a long plate. A fixed frame (11) is fixedly mounted on the rear frame (10). A central cylinder (2) is mounted in the middle of the fixed frame (11) via a dual-axis motor. The output shaft at the other end of the dual-axis motor is provided with a linkage part. Multiple sets of circumferentially arranged slides (21) are slidably mounted on the central cylinder (2). A syringe (22) for extracting reagents is held in the slides (21). 22) A suction rod (221) is installed inside. The slide (21) is also equipped with a volume control group to precisely control the amount of reagent extracted. A rotating ring (23) is installed on the upper part of the central cylinder (2) by a motor. A synchronization component for controlling multiple volume control groups is provided on the outer circumference of the rotating ring (23). A drive group is also provided on one side of the base (1). A cylinder (61) is fixedly installed on the side of the base (1) away from the drive group. A disc (62) is fixedly installed on the cylinder (61). A turntable (6) is installed on the disc (62) by a motor. Multiple test tubes (64) are placed on the turntable (6).

2. The laboratory chemical reagent uniform mixing and extraction device according to claim 1, characterized in that, The central cylinder (2) has a circumferentially arranged vertical groove (20). A threaded rod (201) is rotatably installed on the top of the central cylinder (2). A movable part (202) that slides in multiple vertical grooves (20) is rotatably installed on the top of the threaded rod (201). A spring is connected between the bottom of multiple slides (21) and the movable part (202).

3. The laboratory chemical reagent uniform mixing and extraction device according to claim 1, characterized in that, The synchronization component includes multiple sets of side frames (231) fixed to the outer edge of the rotating ring (23) and arranged in a circumferential direction. A pressing rod (232) is slidably installed on the side frame (231). A roller (233) is fixedly installed on the top of the pressing rod (232). A spring is sleeved on the outside of the pressing rod (232) and the spring is located between the roller (233) and the side frame (231). A guide plate (234) is fixedly installed on one side of the bottom of the side frame (231). A toothed plate (235) is slidably installed on the guide plate (234).

4. The laboratory chemical reagent uniform mixing and extraction device according to claim 3, characterized in that, A connector (241) is fixedly installed on one side of the bottom of the toothed plate (235). An external rod (242) is rotatably installed in the middle of the connector (241). A gear (243) that meshes with the toothed plate (235) is fixedly installed on the top of the external rod (242). The control group includes a rectangular piece (24) fixed to the slide (21). An inner rod (244) is rotatably installed in the middle of the rectangular piece (24). One end of the inner rod (244) is cross-shaped and slides up and down with the cross groove inside the external rod (242).

5. The laboratory chemical reagent uniform mixing and extraction device according to claim 4, characterized in that, The inner rod (244) is placed inside the rectangular piece (24) with a threaded section. A lifting plate (245) is rotatably mounted on the threaded section. A U-shaped plate (248) is fixedly mounted on one end of the lifting plate (245) and sleeved outside the suction rod (221). A scale (246) is fixedly mounted on the rectangular piece (24). A pointer (247) fixed to the lifting plate (245) is slidably mounted on the scale (246). A top plate (223) is fixedly mounted on the top of the suction rod (221). A side block (222) located below the U-shaped plate (248) is fixedly mounted on the side of the suction rod (221).

6. The laboratory chemical reagent uniform mixing and extraction device according to claim 1, characterized in that, The linkage includes a vertical shaft (110) and a side plate (3) connected to the fixed frame (11). A rotating rod (30) is rotatably mounted on the side plate (3). Both the ends of the vertical shaft (110) and the rotating rod (30) are equipped with meshing bevel gears. The rotating rod (30) is also equipped with a pressing wheel (31).

7. The laboratory chemical reagent uniform mixing and extraction device according to claim 1, characterized in that, The drive assembly includes a support frame (4), on which a rocker (40) is rotatably mounted. A positioning plate (41) is provided on one side of the rocker (40). A lifting plate (43) is connected to the positioning plate (41) via a spring rod (42). An L-shaped plate (44) located above the rocker (40) is fixedly mounted on one side of the support frame (4). A shaft (45) is rotatably mounted on the L-shaped plate (44). A cam (46) is fixedly mounted at the end of the shaft (45). A belt pulley mechanism is provided between the shaft (45) and the rotating rod (30) for transmission.

8. The laboratory chemical reagent uniform mixing and extraction device according to claim 1, characterized in that, The turntable (6) is provided with multiple sets of placement buckets (63). Test tubes (64) are placed in the placement buckets (63). A stabilizing group is provided outside the placement buckets (63) to fix the test tubes (64). An electric push rod (635) is fixedly installed in the middle of the turntable (6). A connecting frame (636) is fixedly installed on the top of the electric push rod (635). A lifting ring (637) arranged in a ring is fixedly installed on the outer edge of the connecting frame (636). Multiple lifting rings (637) are located outside multiple placement buckets (63).

9. The laboratory chemical reagent uniform mixing and extraction device according to claim 8, characterized in that, The stabilizing group includes two ear plates (631) symmetrically arranged outside the placement bucket (63). An abutment plate (632) is rotatably installed on the ear plate (631). A moving shaft (633) is slidably installed on the end of the two abutment plates (632) that are close to each other. A limiting plate (634) is provided on the moving shaft (633) on both sides, which is arranged alternately.

10. A method of using a laboratory chemical reagent homogeneous mixing and extraction device, applied to the laboratory chemical reagent homogeneous mixing and extraction device described in claim 1, characterized in that, Includes the following steps: S1: Continuous extraction: The dual-axis motor is turned on to drive the central cylinder (2) to rotate intermittently, so that multiple sets of slides (21) on the central cylinder (2) rotate sequentially to the top of the storage bucket (5). When any set of slides (21) rotates to the top of the storage bucket (5), at the same time the linkage unit causes the slide (21) located above the storage bucket (5) to be squeezed and moved down on the central cylinder (2), so that the lower part of the syringe (22) is located in the storage bucket (5) for extraction. When the linkage unit causes any set of slides (21) to move down, the drive unit can also be turned on to allow the syringe (22) to extract the chemical reagent in the storage bucket (5). When the syringe (22) that has extracted the reagent rotates to the top of the test tube (64), the electric push plate (12) is turned on to press down the suction rod (221), so that the reagent in the syringe (22) is placed into the test tube (64). S2: Quantitative preset: Before the equipment is put into operation, the aspiration volume of each syringe (22) is preset by setting the volume control group on each slide (21).

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