A filtration and dehydration device and system

Abstract

This application provides a filtration and dehydration device and system, applicable to the field of sample filtration and dehydration technology. The device includes: a base plate; a liquid extraction assembly mounted on the base plate, including a test tube placement box; a first lifting module disposed on one side of the test tube placement box; a liquid extraction needle unit slidably disposed on the first lifting module, located above the test tube placement box; a peristaltic pump unit disposed at one end of the test tube placement box and connected to the liquid extraction needle unit; a liquid injection and pressurization assembly mounted on the base plate, including a second lifting module disposed at one end of the peristaltic pump unit; a three-way connector unit slidably disposed on the second lifting module; a filtration and dehydration assembly disposed on the side of the second lifting module near the three-way connector unit; and a collection assembly movably mounted on the base plate. This device can achieve precise control of the liquid output rate during the filtration and dehydration process, improving drying efficiency. It also features a modular design, compact layout, small footprint, and high applicability.

Description

Technical Field

[0001] This application relates to the field of sample filtration and dehydration technology, specifically to a filtration and dehydration device and system. Background Technology

[0002] In the pretreatment process of laboratory test samples, filtration and dehydration is one of the key steps. It is mainly used to remove water or other solvents from the sample, improve the purity of the sample or concentrate the target substance for subsequent analysis or processing.

[0003] Currently, the filtration and dehydration process in experimental pretreatment is basically done manually. The required equipment takes up a lot of space, and usually only a single sample can be filtered and dehydrated at a time. This results in a large workload, low efficiency, and time-consuming operation. Utility Model Content

[0004] To address one of the aforementioned technical deficiencies, this application provides a filtration and dehydration device and system.

[0005] According to a first aspect of this application, a filtration and dehydration apparatus is provided, comprising:

[0006] Base plate;

[0007] Liquid extraction assembly, mounted on the base plate, includes:

[0008] Test tube holder;

[0009] The first lifting module is located on one side of the test tube placement box;

[0010] The aspiration needle unit is slidably mounted on the first lifting module and located above the test tube placement box;

[0011] The peristaltic pump unit is located at one end of the test tube placement box and is connected to the liquid extraction needle unit;

[0012] The liquid injection and pressurization assembly, mounted on the base plate, includes:

[0013] The second lifting module is located at one end of the peristaltic pump unit;

[0014] The three-way connector unit is slidably mounted on the second lifting module. It has several three-way connectors, and the air inlet of the three-way connector is connected to the corresponding air supply device, while the liquid inlet is connected to the peristaltic pump unit.

[0015] The filtration and dehydration component is located on the side of the second lifting module near the three-way connector unit and is connected to the liquid outlet of the three-way connector.

[0016] The collection component is mounted on the base plate and can be moved below the filtration and dehydration component.

[0017] Preferably, the test tube placement box is movably mounted on the base plate, and the test tube placement box has a plurality of first placement holes arranged side by side and spaced apart for placing sample bottles, and the diameter of the first placement holes is adapted to the diameter of the sample bottles;

[0018] The liquid extraction needle unit has a plurality of liquid extraction needles, and the distance between the plurality of liquid extraction needles corresponds one-to-one with the placement spacing of the plurality of sample bottles;

[0019] The peristaltic pump unit has a number of peristaltic pumps, the number of peristaltic pumps being adapted to the number of aspiration needles, and one end of the tubing in the peristaltic pump being adapted to the outlet of the aspiration needle.

[0020] The number of T-joints in the T-joint unit is adapted to the number of peristaltic pumps, and the other end of the hose in the peristaltic pump is adapted to the liquid inlet of the T-joint.

[0021] Preferably, the liquid extraction assembly further includes:

[0022] The first mounting plate is set on the sliding seat of the first lifting module. The first lifting module can drive the first mounting plate to move up and down. Several first through holes are arranged side by side and spaced apart on the first mounting plate. Several liquid suction needles are detachably connected to the first mounting plate through the first through holes, and the diameter of the liquid suction needles is matched with the diameter of the first through holes.

[0023] The first L-shaped tray is fixedly installed on the base plate, and the test tube holder is movably installed on the first L-shaped tray.

[0024] Preferably, the liquid extraction assembly further includes: a first linear module, which is horizontally disposed on the base plate and connected to the first lifting module through a connecting plate, and the first linear module can drive the first lifting module to move horizontally.

[0025] Preferably, the injection pressurization assembly further includes:

[0026] The support platform is mounted on the base plate;

[0027] The Z-axis mounting plate is set on the support platform and connected to the side of the second lifting module away from the tee connector unit;

[0028] The second mounting plate is installed on the sliding seat of the second lifting module. The second lifting module can drive the second mounting plate to move up and down. Several three-way connectors are arranged side by side and spaced apart on the second mounting plate, and the liquid outlet of the three-way connectors passes through the second mounting plate and extends to its bottom.

[0029] More preferably, the liquid injection and pressurization assembly further includes: a second linear module, which is disposed between the base plate and the support platform along the length direction of the first linear module, and can drive the support platform to reciprocate in the horizontal direction.

[0030] More preferably, the liquid injection and pressurization assembly further includes: a third linear module, which is horizontally disposed between the support platform and the Z-axis mounting plate. The third linear module can drive the Z-axis mounting plate to reciprocate in the horizontal direction, and the moving direction of the third linear module is perpendicular to the length direction of the first linear module.

[0031] Preferably, the filtration and dehydration assembly includes:

[0032] Several anhydrous sodium sulfate drying columns, with their inlet end matched with the outlet of a three-way connector;

[0033] A placement platform is installed on the base plate, and a placement slot is provided on it;

[0034] The drying column placement box is movably installed in the placement slot of the placement platform. The opening of the placement slot matches the size of the lower end of the drying column placement box. Several second placement holes for placing anhydrous sodium sulfate drying columns are arranged side by side and spaced apart on the drying column placement box, and the diameter of the second placement holes is adapted to the diameter of the anhydrous sodium sulfate drying column.

[0035] Preferably, the collection component includes:

[0036] The fourth linear module is mounted on the base plate and located below the placement platform. The length direction of the fourth linear module is parallel to the length direction of the first linear module.

[0037] The second L-shaped tray is installed on the sliding seat of the fourth linear module, and the fourth linear module can drive the second L-shaped tray to move horizontally to the liquid collection position or the pick-up and put-down position. The liquid collection position is located directly below the placement platform, and the pick-up and put-down position is located on the outside of the placement platform.

[0038] The test tube collection box is movably mounted on the second L-shaped tray. Several third placement holes for placing filter collection bottles are arranged side by side and spaced apart. The diameter of the third placement hole is adapted to the diameter of the filter collection bottle. When the test tube collection box is in the liquid collection position, the distance between the filter collection bottles corresponds one-to-one with the placement spacing of the anhydrous sodium sulfate drying columns.

[0039] According to a second aspect of this application, a filtration and dehydration system is provided, comprising: a workbench; and a filtration and dehydration device installed on the workbench surface, wherein the filtration and dehydration device is the filtration and dehydration device described above.

[0040] The filtration and dehydration equipment provided in this application has the following technical advantages compared with the prior art: it is simple to manufacture and easy to operate. Moreover, through the cooperation between the liquid extraction component, the liquid injection and pressurization component, the filtration and dehydration component and the collection component, the equipment can automatically complete the filtration and dehydration of multiple sample liquids to be processed, avoiding the impact of manual intervention on the sample liquids to be processed, effectively saving working time, reducing workload and improving work efficiency. The equipment comprises several components. The extraction needle unit, driven by a peristaltic pump, can extract sample liquid from multiple test tubes. A first lifting module moves the extraction needle unit vertically. The second lifting module in the injection and pressurization assembly moves the three-way connector unit vertically. During filtration and dehydration, the second lifting module moves the three-way connector downwards, creating a sealed environment with the filtration and dehydration assembly. Based on the three-way structure, the extracted sample liquid is injected into the filtration and dehydration assembly under sealed conditions, allowing the assembly to filter and dehydrate the sample liquid. Simultaneously, a gas supply device pressurizes the three-way connector, enabling precise control of the liquid output rate during filtration and dehydration and improving drying efficiency. The collection assembly collects the filtered and dehydrated sample liquid for further processing or analysis. Furthermore, the equipment features a modular design, compact layout, small footprint, and high applicability.

[0041] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by way of what is pointed out in the written description, claims, and drawings. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0043] Figure 1 A schematic diagram of the filtration and dehydration equipment provided in this application;

[0044] Figure 2 A top view of the filtration and dehydration equipment provided in this application;

[0045] Figure 3 A partial structural schematic diagram of the liquid extraction component of the filtration and dehydration equipment provided in this application;

[0046] Figure 4 A schematic diagram showing the connection of the liquid injection and pressurization assembly, the filtration and dehydration assembly, and the collection assembly of the filtration and dehydration equipment provided in this application;

[0047] Figure 5A schematic diagram of the liquid injection and pressurization assembly of the filtration and dehydration equipment provided in this application;

[0048] Figure 6 A side view of the liquid injection and pressurization assembly of the filtration and dehydration equipment provided in this application;

[0049] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0050] Among them, 10 is the base plate, 20 is the liquid extraction assembly, 201 is the test tube placement box, 202 is the first lifting module, 203 is the liquid extraction needle unit, 204 is the peristaltic pump unit, 205 is the first mounting plate, 206 is the first L-shaped support plate, 207 is the first linear module, 208 is the connecting plate, 30 is the liquid injection and pressurization assembly, 301 is the second lifting module, 302 is the three-way connector unit, 3021 is the air inlet, 3022 is the liquid inlet, 3023 is the liquid outlet, and 3024 is... Straight connector, 303 is the support platform, 304 is the Z-axis mounting plate, 305 is the second mounting plate, 306 is the second linear module, 307 is the third linear module, 308 is the limiting plate, 309 is the sealing gasket, 310 is the double-ended external thread connector, 40 is the filter dehydration assembly, 401 is the placement platform, 402 is the drying column placement box, 403 is the fixing mechanism, 50 is the collection assembly, 501 is the fourth linear module, 502 is the second L-shaped tray, and 503 is the test tube collection box. Detailed Implementation

[0051] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0052] To address some problems existing in the current technology:

[0053] This application provides a filtration and dehydration device, such as... Figures 1-7 As shown, the device includes:

[0054] Base plate 10 is used to support the entire filtration and dewatering equipment;

[0055] Liquid extraction assembly 20, mounted on base plate 10, includes:

[0056] The test tube placement box 201 is movably mounted on the base plate 10. The test tube placement box 201 has several first placement holes arranged side by side and spaced apart for placing sample bottles. The diameter of the first placement hole is adapted to the diameter of the sample bottle, and the test tube placement box 201 can be adapted to sample bottles of 10mL to 250mL (e.g., 10mL / 15mL / 200mL / 250mL).

[0057] The first lifting module 202 is located on one side of the test tube placement box 201;

[0058] The liquid extraction needle unit 203 is slidably disposed on the first lifting module 202 and located above the test tube placement box 201. The first lifting module 202 can drive the liquid extraction needle unit 203 to move up and down. The liquid extraction needle unit 203 has a number of liquid extraction needles, and the distance between the number of liquid extraction needles corresponds one-to-one with the placement spacing of the number of sample bottles.

[0059] A peristaltic pump unit 204 is disposed at one end of the test tube placement box 201 and connected to the aspiration needle unit 203. The peristaltic pump unit 204 has a plurality of peristaltic pumps, the number of peristaltic pumps being adapted to the number of aspiration needles, and one end of the tubing (not shown) in the peristaltic pump being adapted to the outlet of the corresponding aspiration needle.

[0060] The liquid injection and pressurization assembly 30 is mounted on the base plate 10 and includes:

[0061] The second lifting module 301 is located at one end of the peristaltic pump unit 204;

[0062] The three-way connector unit 302 is slidably mounted on the second lifting module 301. The second lifting module 301 can drive the three-way connector unit 302 to move up and down. The three-way connector unit 302 has a number of three-way connectors, and the number of three-way connectors is adapted to the number of peristaltic pumps. The air inlet 3021 of the three-way connector is connected to the corresponding air supply device (not shown), and the liquid inlet 3022 is connected to the corresponding peristaltic pump in the peristaltic pump unit 204. The other end of the hose in the peristaltic pump is adapted to the liquid inlet 3022 of the three-way connector. In specific implementation, the sample liquid to be processed is transported through an independent peristaltic pump and its hose, which can ensure that there is no interference between the solutions, and the number of air supply devices is adapted to the number of three-way connectors.

[0063] The filter and dehydration component 40 is located on the side of the second lifting module 301 near the three-way connector unit 302 and is connected to the liquid outlet 3023 of the three-way connector.

[0064] The collection component 50 is movably mounted on the base plate 10 and can be moved below the filter and dewatering component 40.

[0065] The filtration and dehydration equipment provided in this application is simple to manufacture and easy to operate. Through the cooperation of the liquid extraction component, liquid injection and pressurization component, filtration and dehydration component, and collection component, the equipment can automatically complete the filtration and dehydration of multiple sample solutions (i.e., sample solutions after the previous process), avoiding the impact of manual intervention on the sample solutions, effectively saving working time, reducing workload, and improving work efficiency. Furthermore, the equipment adopts a modular design, has a compact layout, occupies little space, and has high applicability.

[0066] Specifically, the tee connector is a Y-type tee connector, which has strong applicability.

[0067] Furthermore, the test tube placement box 201 has 18 first placement holes, which can hold 18 sets of sample bottles. The 18 first placement holes are arranged in rows of three, for a total of six rows. The liquid extraction needle unit 203 includes 6 liquid extraction needles arranged side by side and spaced apart. The 6 liquid extraction needles are arranged in rows of three, for a total of two rows. The peristaltic pump unit 204 has 6 peristaltic pumps. The 6 liquid extraction needles correspond one-to-one with the 6 peristaltic pumps, thereby realizing the simultaneous filtration and dehydration of 6 sample liquids to be processed, meeting the extraction requirements of 6 sets of samples. In addition, there are also 6 three-way connectors. The 6 three-way connectors are arranged in rows of three, for a total of two rows.

[0068] In practice, the sample solutions to be processed can be the same type of sample solution or different types of sample solutions. When different types of sample solutions are selected, if each type of sample solution is placed in only one sample bottle, the number of sample solutions can be equivalent to the number of aspiration needles (e.g., 6 aspiration needles can extract 6 types of sample solutions respectively). Otherwise, sample bottles of the same sample solution to be processed should be placed along the movement trajectory of the corresponding aspiration needle to prevent the aspiration needle from contaminating other sample solutions when it moves to the next group of sample solutions to be processed. In addition, depending on the actual situation, the sample bottles can be replaced with test tubes of the corresponding specifications.

[0069] Furthermore, the filtration and dehydration assembly 40 includes:

[0070] Several anhydrous sodium sulfate drying columns are provided, with their inlet end matching the outlet 3023 of the three-way connector, and the specifications of the anhydrous sodium sulfate drying columns are 3mL / 6mL. In practice, the anhydrous sodium sulfate drying columns are highly similar in appearance to the extraction columns, which ensures good consistency in consumable storage management and transfer operations.

[0071] The placement platform 401 is installed on the base plate 10 and has a placement slot on it;

[0072] The drying column placement box 402 is movably disposed in the placement slot of the placement platform 401. The opening of the placement slot matches the lower end size of the drying column placement box 402. Several second placement holes for placing anhydrous sodium sulfate drying columns are arranged side by side and spaced apart on the drying column placement box 402, and the diameter of the second placement holes is adapted to the diameter of the anhydrous sodium sulfate drying column.

[0073] Specifically, the drying column placement box 402 has 18 second placement holes, which can hold 18 sets of anhydrous sodium sulfate drying columns. The arrangement of the 18 second placement holes is the same as that of the first placement holes, and the distance between each T-connector corresponds one-to-one with the placement spacing of each anhydrous sodium sulfate drying column.

[0074] Furthermore, a first valve for sealing the air inlet 3021 of the tee connector is provided, and a second valve for sealing the liquid inlet 3022 of the tee connector is provided.

[0075] In practice, when the quantity of sample liquid to be processed is equivalent to the number of aspiration needles, the sample bottle containing the sample liquid to be processed is placed in the test tube placement box 201, and the distance between each aspiration needle corresponds to the placement spacing of each sample bottle. When filtering and dehydrating the sample liquid to be processed, the first lifting module 202 is driven to move each aspiration needle on the aspiration needle unit 203 down into the corresponding sample bottle. At the same time, the second lifting module 301 is driven to move each three-way connector above the corresponding anhydrous sodium sulfate drying column, and then move each three-way connector downward until it docks with the corresponding anhydrous sodium sulfate drying column, thereby forming a sealed environment. The collection component 50 is then moved below the filtration and dehydration component 40. After that, the peristaltic pump unit 204 is started and turned on. The second valve is used to drive the corresponding suction needles to draw the sample liquid to be processed from the sample bottle to the corresponding three-way connector. After injecting the predetermined volume of sample liquid to be processed, the second valve is closed and the first valve is opened. Gas (such as nitrogen) is introduced into each three-way connector through the gas supply device to pressurize it, so that the sample liquid to be processed flows through the outlet of the three-way connector to the corresponding anhydrous sodium sulfate drying column. Under the action of pressure, the liquid discharge rate of the anhydrous sodium sulfate drying column is precisely controlled, thereby improving the drying efficiency of the sample liquid to be processed. Finally, the collection component 50 is used to collect the sample liquid that has been filtered and dehydrated by the anhydrous sodium sulfate drying column. After collection, the first valve is closed and the collection component 50 is moved to the bottom of the filtration and dehydration component 40 for further processing or analysis.

[0076] Furthermore, the liquid extraction assembly 20 also includes:

[0077] The first mounting plate 205 is disposed on the sliding seat of the first lifting module 202. The first lifting module 202 can drive the first mounting plate 205 to perform lifting and lowering movements. Several first through holes are arranged side by side and spaced apart on the first mounting plate 205. Several liquid aspiration needles are detachably connected to the first mounting plate 205 through the first through holes, and the diameter of the liquid aspiration needles is adapted to the diameter of the first through holes.

[0078] The first L-shaped tray 206 is fixedly installed on the base plate 10, and the test tube box 201 is movably installed on the first L-shaped tray 206, which can provide stable support for the test tube box 201.

[0079] Furthermore, the liquid extraction assembly 20 also includes:

[0080] The first linear module 207 is horizontally mounted on the base plate 10 and connected to the first lifting module 202 via a connecting plate 208. The first linear module 207 can drive the first lifting module 202 to move horizontally. In specific implementation, when the number of sample liquids to be processed is greater than the number of aspiration needles, after the sample liquids to be processed in a set (with the number of aspiration needles as a set, such as 6 needles as a set) of sample bottles are extracted, the first lifting module 202 is driven to move each aspiration needle on the aspiration needle unit 203 out of the corresponding sample bottle. Then, the first linear module 207 is driven to move the aspiration needles to the top of the next set of sample bottles to be extracted, thereby performing the above-mentioned filtration and dehydration operation. The above process will be repeated until the entire filtration and dehydration process is completed. After the filtration and dehydration process is completed, all pipelines (such as the hoses of each peristaltic pump, the T-joints and the connecting pipes of the air supply device, etc.) will be cleaned with pure water to facilitate the next use. Various cleaning methods can be used, as long as the pipelines can be cleaned. All pipelines are made of PEEK material to meet the requirements of corrosion resistance and long-term use.

[0081] Furthermore, the injection pressurization assembly 30 also includes:

[0082] Support platform 303 is mounted on base plate 10;

[0083] The Z-axis mounting plate 304 is mounted on the support platform 303 and connected to the side of the second lifting module 301 away from the three-way connector unit 302.

[0084] The second mounting plate 305 is mounted on the sliding seat of the second lifting module 301. The second lifting module 301 can drive the second mounting plate 305 to move up and down. Several three-way connectors are arranged side by side and spaced apart on the second mounting plate 305, and the liquid outlet 3023 of the three-way connectors passes through the second mounting plate 305 and extends to its lower part.

[0085] Specifically, the inlet 3022 of each tee in the tee unit 302 is connected to the corresponding peristaltic pump through a straight connector 3024, which is easy to maintain and replace.

[0086] Specifically, each tee connector outlet 3023 in the tee connector unit 302 passes through the second mounting plate 305 and the limiting plate 308 in sequence and is connected to the sealing gasket 309. Through the sealing gasket 309, the sealing performance between the anhydrous sodium sulfate drying column and the tee connector outlet 3023 can be improved, preventing leakage of the sample liquid to be processed and the gas supplied by the gas supply device, thereby improving the drying efficiency and safety of the filtration and dehydration equipment and extending its service life.

[0087] Specifically, each tee in the tee unit 302 is connected to the second mounting plate 305 via a double-ended external threaded connector 310. The double-ended external threaded connector 310 can improve the connection strength between each tee and the second mounting plate 305, ensuring the stability and safety of the connection. It can also be reused, facilitating later maintenance and replacement.

[0088] Furthermore, the injection pressurization assembly 30 also includes:

[0089] The second linear module 306 is positioned between the base plate 10 and the support platform 303 along the length of the first linear module 207, and can drive the support platform 303 to reciprocate in the horizontal direction. Through the coordinated use of the first linear module 207 and the support platform 303, several tee connectors on the second mounting plate 305 are moved along the length of the first linear module 207 to above the corresponding anhydrous sodium sulfate drying column.

[0090] In practice, when the next set of anhydrous sodium sulfate drying columns is needed, the first and second valves are closed, and the second lifting module 301 is driven to move upward, so that each tee connector is separated from the corresponding anhydrous sodium sulfate drying column. Then, the second linear module 306 is driven to move each tee connector in the tee connector unit 302 to directly above the next set of anhydrous sodium sulfate drying columns. Then, the second lifting module 301 is driven to move downward, so that each tee connector is connected to the next set of corresponding anhydrous sodium sulfate drying columns to form a sealed environment.

[0091] Furthermore, the injection pressurization assembly 30 also includes:

[0092] The third linear module 307 is horizontally positioned between the support platform 303 and the Z-axis mounting plate 304. The third linear module 307 can drive the Z-axis mounting plate 303 to reciprocate horizontally, and the direction of movement of the third linear module 307 is perpendicular to the length direction of the first linear module 207. Through the coordinated use of the third linear module 307, the support platform 303, and the Z-axis mounting plate 304, several tee joints on the second mounting plate 305 can be moved along a direction perpendicular to the length of the first linear module 207 to above the corresponding anhydrous sodium sulfate drying column, expanding the movement range of the tee joints and thus improving the flexibility of equipment use.

[0093] Specifically, the liquid injection and pressurization assembly 30 includes two second linear modules 306 arranged side by side and spaced apart along the length direction of the first linear module 207, and the support platform 303 is connected to the sliding seats of the two third synchronous belt linear modules 301. The two second linear modules 306 and the support platform 303 form a gantry structure, which effectively improves the stability of the liquid injection and pressurization assembly structure.

[0094] Furthermore, the filtration and dehydration assembly 40 also includes:

[0095] Several second through holes are provided on both sides of the lower part of the drying column placement box 402, and the second through holes can be circular or square or other shapes;

[0096] The fixing mechanism 403 is set opposite to one end of the placement platform 401, and the pushing end is slidably connected to the drying column placement box 402 through the second through hole. The shape of the second through hole is adapted to the shape of the pushing end, and the fixing mechanism 403 can be a cylinder or an electric push rod, etc.

[0097] In practice, the drying column placement box 402 is placed in the placement slot on the placement platform 401. The driving and fixing mechanism 403 is activated so that its pushing end connects to the drying column placement box 402 through the second through hole. Through the coordinated use of the placement slot on the placement platform 401, the drying column placement box 402, and the fixing mechanism 403, the drying column placement box 402 is placed more stably in the placement slot. When the liquid outlet 3023 of the three-way connector connects to or separates from the anhydrous sodium sulfate drying column, the drying column placement box 402 will not slip, increasing stability. After the filtration and dehydration operation is completed, the driving and fixing mechanism 403 is activated to separate its pushing end from the drying column placement box 402, and then the drying column placement box 402 is removed from the placement slot on the placement platform 401.

[0098] Furthermore, the collection component 50 includes:

[0099] The fourth linear module 501 is mounted on the base plate 10 and located below the placement platform 401. The length direction of the fourth linear module 501 is parallel to the length direction of the first linear module 207.

[0100] The second L-shaped tray 502 is installed on the sliding seat of the fourth linear module 501, which can provide stable support for the test tube collection box 503. The fourth linear module 501 can drive the second L-shaped tray 502 to move horizontally to the liquid collection position or the pick-up and put-down position. The liquid collection position is located directly below the placement platform 401, and the pick-up and put-down position is located on the outside of the placement platform 401.

[0101] The test tube collection box 503 is movably mounted on the second L-shaped tray 502. Several third placement holes for placing filter collection bottles are arranged side by side and spaced apart. The diameter of the third placement hole is adapted to the diameter of the filter collection bottle. When the test tube collection box 503 is in the liquid collection position, the distance between the filter collection bottles corresponds one-to-one with the placement spacing of the anhydrous sodium sulfate drying columns. The filter collection bottles can be replaced with test tubes of the corresponding specifications.

[0102] In practice, a test tube collection box 503 containing several filter collection bottles is placed on the second L-shaped tray 502. During the filtration and dehydration operation, the fourth linear module 501 is activated, which moves the test tube collection box 503 to the liquid collection position, aligning each filter collection bottle with a corresponding anhydrous sodium sulfate drying column. The filtered and dehydrated sample liquid is then collected. After collection, the fourth linear module 501 moves the test tube collection box 503 to the pick-and-place position, removing the filter collection bottles from the box and transferring them to the next step. This process is repeated until the entire filtration and dehydration process is completed.

[0103] Specifically, the first lifting module 202, the second lifting module 301, the first linear module 207, the second linear module 306, the third linear module 307, or the fourth linear module 501 may be, but are not limited to, synchronous belt linear modules or screw-type linear modules, and each module and the fixing mechanism 403 are driven independently by their own driving mechanisms, without affecting each other.

[0104] Furthermore, the filtration and dewatering equipment also includes a control device, which is electrically connected to the first lifting module 202, the second lifting module 301, the first linear module 207, the second linear module 306, the third linear module 307, the fourth linear module 501, and the fixing mechanism 403, so as to realize the automation and continuous operation of the filtration and dewatering process, effectively improving the operating efficiency.

[0105] Specifically, the first lifting module 202, the second lifting module 301, the first linear module 207, the second linear module 306, the third linear module 307, the fourth linear module 501, and the fixing mechanism 403 are all equipped with sensors to realize the automated control of the equipment.

[0106] In summary, the specific operation process of the filtration and dehydration equipment provided in this application is as follows:

[0107] First, place the sample vial containing the sample solution to be processed into the test tube placement box 201 and then place it on the first L-shaped tray 206. Drive the first linear module 207 to move each suction needle in the suction needle unit 203 to directly above the sample vial to be aspirated. Then, place the drying column placement box 402 containing several unused anhydrous sodium sulfate drying columns into the placement slot of the placement platform 401 and drive the fixing mechanism 403 so that its pushing end connects to the drying column placement box 402 through the second through hole. Finally, place the test tube collection box 503 containing unused filter collection bottles into the test tube collection box 503. On the second L-shaped tray 502, the fourth linear module 501 is driven, which in turn moves the test tube collection box 503 to the liquid collection position and makes several filter collection bottles correspond one by one with the corresponding anhydrous sodium sulfate drying column. Then, the second lifting module 301, the second linear module 306 and / or the third linear module 307 are driven to move each three-way connector in the three-way connector unit 302 to directly above the corresponding anhydrous sodium sulfate drying column. Then, the second lifting module 301 is driven to move down so that each three-way connector is connected with the corresponding anhydrous sodium sulfate drying column, thereby forming a sealed environment.

[0108] When filtration and dehydration are required, the first lifting module 202 is driven to move down, moving each suction needle into the corresponding sample bottle. Then, the peristaltic pump unit 204 is started and the second valve is opened. Each peristaltic pump drives the corresponding suction needle to draw the sample liquid to be processed from the sample bottle to the corresponding three-way connector. After injecting a predetermined volume of sample liquid to be processed, the second valve is closed and the first valve is opened. Gas (such as nitrogen) is introduced into each three-way connector through the corresponding gas supply device to pressurize it, so that the sample liquid to be processed passes through the outlet of the three-way connector to the corresponding anhydrous sodium sulfate drying column for filtration and dehydration. The filtered and dehydrated sample liquid enters the corresponding filter collection bottle. After collection is completed, the first valve is closed. At the same time, the fourth linear module 501 drives the test tube collection box 503 to the pick-and-place position, and then takes out the filter collection bottle in the test tube collection box 503 and transfers the taken-out filter collection bottle to the next process.

[0109] When it is necessary to extract the sample liquid to be processed from the next set of sample bottles, the peristaltic pump unit 204 is paused, the first lifting module 202 is driven to move upward, and the liquid extraction needles on the liquid extraction needle unit 203 are moved out of the corresponding sample bottles. Then the first linear module 207 is driven to move the liquid extraction needles to the top of the next set of sample bottles to be extracted. The above filtration and dehydration operation is repeated until the sample liquid to be processed in all sample bottles has been filtered and dehydrated, thus completing the entire filtration and dehydration process.

[0110] When the next set of anhydrous sodium sulfate drying columns is needed, the first valve and the second valve are closed, and the second lifting module 301 is driven to move upward, so that each tee connector is separated from the corresponding anhydrous sodium sulfate drying column. Then, the second linear module 306 and / or the third linear module 307 are driven to move each tee connector in the tee connector unit 302 to directly above the next set of anhydrous sodium sulfate drying columns. Then, the second lifting module 301 is driven to move downward, so that each tee connector is connected to the next set of corresponding anhydrous sodium sulfate drying columns to form a sealed environment.

[0111] After the entire filtration and dehydration process is completed, the peristaltic pump unit 204 and the air supply device are paused. The first lifting module 202 is driven to move upward, causing each suction needle on the suction needle unit 203 to move out of the corresponding sample bottle. The first linear module 207 is then driven to restore the suction assembly 20 to its original position. The second lifting module 301 is then driven to move upward, separating each tee connector from the corresponding anhydrous sodium sulfate drying column. The second linear module 306 and / or the third linear module 307 are then driven to restore the injection pressurization assembly 30 to its original position. The fixing mechanism 403 is then driven to separate its pushing end from the drying column placement box 402, making it easier to remove the drying column placement box 402 from the placement slot of the placement platform 401. The fourth linear module 501 is then driven to move the test tube collection box 503 to the pick-up and drop-off position. After that, all pipelines (such as the hoses of each peristaltic pump, the connecting pipes of the tee connectors and the air supply device, etc.) are cleaned with pure water to facilitate the next use.

[0112] This application embodiment also provides a filtration and dehydration system, including: a workbench;

[0113] The filtration and dehydration equipment is installed on the workbench surface, and the filtration and dehydration equipment is the filtration and dehydration equipment described above.

[0114] The filtration and dehydration system of this application includes any one of the filtration and dehydration devices in the above embodiments. Since the system uses the filtration and dehydration devices in the above embodiments, the beneficial effects of the system can be found in the above embodiments.

[0115] As a preferred embodiment, a filtration and dehydration system also includes a track robot used in conjunction with the filtration and dehydration equipment. The track robot includes a motion track set on a workbench and a collaborative manipulator slidably set on the motion track. The collaborative manipulator can reach any position within a certain range of space without requiring a large amount of manual intervention, resulting in lower labor intensity and higher work efficiency.

[0116] In practice, the collaborative robot is moved to a position within a certain space that the filtration and dehydration equipment can reach. The collaborative robot can place the test tube placement box 201 on the first L-shaped tray 206, place the test tube collection box 503 on the second L-shaped tray 502, place the sample bottle containing the sample liquid to be processed into the test tube placement box 201 or take out the sample bottle after the liquid has been drawn from the test tube placement box 201, place the unused anhydrous sodium sulfate drying column into the drying column placement box 403 or take out the used anhydrous sodium sulfate drying column from the drying column placement box 402, place the filter collection bottle into the test tube collection box 503 or take out the filter collection bottle from the test tube collection box 503, or transfer the filter collection bottle to the next working position on the workbench for the next process operation.

[0117] In the description of this application, it should be understood that the terms "upper", "lower", "horizontal", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0118] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0119] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0120] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0121] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A filtration and dehydration device, characterized in that, include: Base plate (10); A liquid extraction assembly (20), mounted on a base plate (10), includes: Test tube placement box (201); The first lifting module (202) is located on one side of the test tube placement box (201); The liquid aspiration needle unit (203) is slidably disposed on the first lifting module (202) and located above the test tube placement box (201); The peristaltic pump unit (204) is located at one end of the test tube placement box (201) and is connected to the liquid extraction needle unit (203); The liquid injection and pressurization assembly (30), mounted on the base plate (10), includes: The second lifting module (301) is located at one end of the peristaltic pump unit (204); The three-way connector unit (302) is slidably mounted on the second lifting module (301), has several three-way connectors, and the air inlet (3021) of the three-way connector is connected to the corresponding air supply device, and the liquid inlet (3022) is connected to the peristaltic pump unit (204). The filter dehydration component (40) is located on the side of the second lifting module (301) near the three-way connector unit (302) and is connected to the liquid outlet (3023) of the three-way connector; The collection component (50) is movably mounted on the base plate (10) and can be moved below the filter and dewatering component (40).

2. The filtration and dehydration equipment according to claim 1, characterized in that, The test tube placement box (201) is movably installed on the base plate (10). The test tube placement box (201) has a number of first placement holes for placing sample bottles arranged side by side and spaced apart, and the diameter of the first placement hole is adapted to the diameter of the sample bottle. The liquid extraction needle unit (203) has a plurality of liquid extraction needles, and the distance between the plurality of liquid extraction needles corresponds one-to-one with the placement spacing of the plurality of sample bottles; The peristaltic pump unit (204) has a number of peristaltic pumps, the number of peristaltic pumps being adapted to the number of aspiration needles, and one end of the tubing in the peristaltic pump being adapted to the outlet of the aspiration needle. The number of tee connectors in the tee connector unit (302) is adapted to the number of peristaltic pumps, and the other end of the hose in the peristaltic pump is adapted to the liquid inlet (3022) of the tee connector.

3. The filtration and dehydration equipment according to claim 2, characterized in that, The liquid extraction assembly (20) further includes: The first mounting plate (205) is disposed on the sliding seat of the first lifting module (202). The first lifting module (202) can drive the first mounting plate (205) to move up and down. The first mounting plate (205) has a number of first through holes arranged side by side and spaced apart. A number of liquid suction needles are detachably connected to the first mounting plate (205) through the first through holes, and the diameter of the liquid suction needles is matched with the diameter of the first through holes. The first L-shaped tray (206) is fixedly installed on the base plate (10), and the test tube placement box (201) is movably installed on the first L-shaped tray (206).

4. The filtration and dehydration equipment according to claim 2, characterized in that, The liquid extraction assembly (20) further includes: The first linear module (207) is horizontally set on the base plate (10) and connected to the first lifting module (202) through the connecting plate (208). The first linear module (207) can drive the first lifting module (202) to move horizontally.

5. The filtration and dehydration equipment according to claim 4, characterized in that, The liquid injection pressurization assembly (30) also includes: A support platform (303) is mounted on a base plate (10); The Z-axis mounting plate (304) is mounted on the support platform (303) and connected to the side of the second lifting module (301) away from the tee connector unit (302); The second mounting plate (305) is mounted on the sliding seat of the second lifting module (301). The second lifting module (301) can drive the second mounting plate (305) to move up and down. Several three-way connectors are arranged side by side and spaced apart on the second mounting plate (305), and the liquid outlet (3023) of the three-way connector passes through the second mounting plate (305) and extends to its lower part.

6. The filtration and dehydration equipment according to claim 5, characterized in that, The liquid injection pressurization assembly (30) also includes: The second linear module (306) is disposed between the base plate (10) and the support platform (303) along the length direction of the first linear module (207), and can drive the support platform (303) to reciprocate in the horizontal direction.

7. The filtration and dehydration equipment according to claim 5, characterized in that, The liquid injection pressurization assembly (30) also includes: The third linear module (307) is horizontally positioned between the support platform (303) and the Z-axis mounting plate (304). The third linear module (307) can drive the Z-axis mounting plate (304) to reciprocate in the horizontal direction, and the moving direction of the third linear module (307) is perpendicular to the length direction of the first linear module (207).

8. The filtration and dehydration equipment according to claim 4, characterized in that, The filtration and dehydration assembly (40) includes: Several anhydrous sodium sulfate drying columns, the inlet end of which is matched with the outlet (3023) of the three-way connector; A placement platform (401) is installed on a base plate (10) and a placement slot is provided thereon; The drying column placement box (402) is movably set in the placement slot of the placement platform (401). The opening of the placement slot matches the size of the lower end of the drying column placement box (402). Several second placement holes for placing anhydrous sodium sulfate drying columns are arranged side by side and spaced apart on the drying column placement box (402), and the diameter of the second placement holes is adapted to the diameter of the anhydrous sodium sulfate drying column.

9. The filtration and dehydration equipment according to claim 8, characterized in that, The collection component (50) includes: The fourth linear module (501) is installed on the base plate (10) and located below the placement platform (401). The length direction of the fourth linear module (501) is parallel to the length direction of the first linear module (207). The second L-shaped tray (502) is installed on the sliding seat of the fourth linear module (501), and the fourth linear module (501) can drive the second L-shaped tray (502) to move horizontally to the liquid collection position or the pick-up and put-down position. The liquid collection position is located directly below the placement platform (401), and the pick-up and put-down position is located on the outside of the placement platform (401). The test tube collection box (503) is movably mounted on the second L-shaped tray (502). Several third placement holes for placing filter collection bottles are arranged side by side and spaced apart. The diameter of the third placement hole is adapted to the diameter of the filter collection bottle. When the test tube collection box (503) is in the liquid collection position, the distance between the filter collection bottles corresponds one-to-one with the placement spacing of the several anhydrous sodium sulfate drying columns.

10. A filtration and dehydration system, characterized in that, include: Workbench; A filtration and dehydration device is installed on the workbench surface, and the filtration and dehydration device is the filtration and dehydration device according to any one of claims 1 to 9.

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