CN119345748A

CN119345748A - A solid phase extraction device for purification and collection of pesticide residues

Info

Publication number: CN119345748A
Application number: CN202411791051.0A
Authority: CN
Inventors: 孙大正; 乔立新; 朱光瑞; 马婷婷
Original assignee: Jiangsu Chengkai Traditional Chinese Medicine Co ltd
Current assignee: Jiangsu Chengkai Traditional Chinese Medicine Co ltd
Priority date: 2024-12-06
Filing date: 2024-12-06
Publication date: 2025-01-24
Anticipated expiration: 2044-12-06
Also published as: CN119345748B

Abstract

The invention discloses a solid phase extraction device for purifying and collecting pesticide residues, and relates to the technical field of pesticide residue solid phase extraction. The invention comprises a liquid storage component, a liquid moving component, a regulating component and an extraction component, wherein the liquid storage component comprises a liquid storage supporting disk, the upper surface of the liquid storage supporting disk is fixedly connected with a liquid storage tank, the liquid moving component comprises a liquid moving supporting disk, the surface of the liquid moving supporting disk is fixedly connected with a pipette, the regulating component comprises a liquid pushing plate and a liquid taking clamping claw, the extraction component comprises an extraction supporting disk and an extraction regulating block, and an extraction pipe is arranged on the surface of the extraction supporting disk in a sliding manner. According to the invention, the liquid transferring support plate and the liquid storage support plate synchronously rotate, the pipette sequentially passes through the liquid taking station and the liquid discharging station, and the liquid storage tank sequentially passes through the liquid taking station, so that when the liquid transferring support plate and the liquid storage support plate rotate for one circle, the extraction support plate synchronously rotates for 72 degrees, the position switching of the extraction tube is realized, the batch automatic extraction is convenient, and the possibility of frequent reagent alternate pollution is avoided.

Description

Solid phase extraction device for purifying and collecting pesticide residues

Technical Field

The invention belongs to the technical field of pesticide residue solid-phase extraction, and particularly relates to a solid-phase extraction device for pesticide residue purification and collection.

Background

The solid phase extraction is a sample pretreatment technology, combines the advantages of liquid-solid extraction and liquid chromatography, is mainly used for separating, purifying and concentrating samples, performs solid phase extraction on samples containing pesticide residues, is convenient for enriching, separating and purifying pesticide residues in the samples, is convenient for measurement and detection, and common solid phase extraction operation generally comprises four steps of activation, sample loading, leaching and elution, and simultaneously, multiple leaching operations are convenient for evolving substances in sample liquid, so that the effect of impurity residue on related data is avoided.

The common solid-phase extraction device for pesticide residues of samples is characterized in that samples are converted into sample reagents, an activating agent, the sample reagents, a eluting agent and an eluting agent are sequentially added into an extraction tube by using a pipetting device, liquid taking and reagent transferring dropwise adding are needed to be carried out by using different pipetting devices in the application operation process, the operation is complicated, and the pipetting device taking deviation is easy to occur, so that liquid taking cross infection is caused. Therefore, we provide a solid phase extraction device for purifying and collecting pesticide residues, which is used for solving the technical problems.

Disclosure of Invention

The invention aims to provide a solid-phase extraction device for purifying and collecting pesticide residues, which solves the problems in the technical background through the specific structural design of a liquid storage component, a liquid moving component, a regulating component and an extraction component.

The solid-phase extraction device for purifying and collecting pesticide residues comprises a workbench, wherein a liquid storage component is rotatably arranged on the surface of the workbench, the liquid storage component comprises a liquid storage supporting disc which is rotatably arranged, a plurality of liquid storage tanks are fixedly connected to the upper surface of the liquid storage supporting disc, a liquid taking pipe is fixedly connected to the inner part of the liquid storage tanks, a first opening and closing fan blade and a second opening and closing fan blade are rotatably arranged in the liquid taking pipe, a liquid moving component is arranged on the surface of the workbench, the liquid moving component comprises a liquid moving supporting disc which is rotatably arranged and can move up and down, liquid moving ports which are in one-to-one correspondence with the liquid storage tanks are formed in the surface of the liquid moving supporting disc, a liquid moving piston column is slidably arranged in the liquid moving pipe, a liquid moving butt joint block is fixedly connected to the upper surface of the liquid moving piston column, a regulating and controlling component is fixedly connected to the upper surface of the workbench, the regulating and controlling component comprises two symmetrical sliding driving blocks, one side of the two regulating and controlling blocks are fixedly connected with one side of the driving clamping jaw, and one side of the driving jaw is fixedly connected with one driving jaw.

The extraction assembly comprises an extraction supporting plate which is arranged in a rotating mode and an extraction regulating and controlling block which is arranged on the upper surface of the workbench in a rotating mode, a plurality of extraction openings are formed in the surface of the extraction supporting plate, extraction pipes are arranged in the extraction openings in a sliding mode, a collecting frame is arranged below the extraction supporting plate in a sliding mode, an annular guide rail is fixedly connected to the lower surface of the collecting frame, a lifting sliding groove is formed in the peripheral side face of the extraction regulating and controlling block, lifting supporting blocks are fixedly connected to the upper surface of the workbench, lifting transmission connecting rods are connected to two opposite side faces in a rotating mode, two lifting transmission connecting rods are fixedly connected, one lifting transmission connecting rod is fixedly connected with a first lifting transmission column which is in sliding fit with the annular guide rail, and the other lifting transmission connecting rod is fixedly connected with a second lifting transmission column which is in sliding fit with the lifting sliding groove.

The invention further provides that the liquid storage assembly further comprises a liquid storage supporting shaft rotatably arranged on the upper surface of the workbench, the liquid storage supporting shaft is fixedly connected with the liquid storage supporting disc, a first driving wheel is fixedly connected to the peripheral side face of the liquid storage supporting shaft, a second driving wheel is rotatably arranged on the lower surface of the workbench, and the second driving wheel is fixedly connected with the liquid storage supporting shaft.

The invention further provides that the upper surface of the liquid storage tank is symmetrically and fixedly connected with two guide sliding rails, a U-shaped transmission plate is arranged between the two guide sliding rails in a sliding manner, an opening and closing transmission opening is symmetrically formed in the surface of the U-shaped transmission plate, a first reset spring is fixedly connected between the U-shaped transmission plate and the upper surface of the liquid storage tank, one side surface of each first opening and closing fan blade is fixedly connected with an opening and closing shaft, the opening and closing shaft is rotationally connected with the liquid taking pipe, one end of each opening and closing shaft penetrating the liquid taking pipe is fixedly connected with a first opening and closing disc, one side surface of each first opening and closing disc, which is close to the first opening and closing fan blade, is fixedly connected with a first opening and closing transmission column, one side surface of each second opening and closing fan blade is fixedly connected with a plurality of opening and closing pipes, each opening and closing pipe sleeve is arranged on the peripheral side surface of the opening and closing shaft, one side surface of each second opening and closing transmission column is fixedly connected with a second opening and closing disc, and closing transmission column is respectively located in the corresponding opening and closing column.

The invention further provides that the pipetting assembly further comprises a hollow supporting seat fixedly connected to the upper surface of the workbench, a third driving wheel is rotatably connected to the peripheral side surface of the hollow supporting seat, the third driving wheel is connected with the first driving wheel through a first driving belt, an arc-shaped driving rack is fixedly connected to the peripheral side surface of the third driving wheel, two limiting branch pipes are symmetrically and fixedly connected to the upper surface of the third driving wheel, two limiting slide bars are symmetrically and fixedly connected to the lower surface of the pipetting supporting disc, the limiting slide bars are in sliding fit with the corresponding limiting branch pipes, the pipetting supporting seat is fixedly connected to the lower surface of the pipetting supporting disc, an inner threaded pipe is rotatably connected to the lower surface of the pipetting supporting seat, and a driving screw is in threaded fit with the inner threaded pipe.

The invention further provides that the upper surface of the hollow supporting seat is symmetrically and fixedly connected with two limiting support plates, a limiting pipe is fixedly connected between the two limiting support plates, the limiting pipe is in sliding fit with the internally threaded pipe, one end of the driving screw penetrating through the workbench is fixedly connected with a transmission bevel gear, the lower surface of the workbench is fixedly connected with an extension support plate, one side surface of the extension support plate is rotatably connected with a driving bevel gear meshed with the transmission bevel gear, and the lower surface of the pipette is fixedly connected with a pressing support plate corresponding to the U-shaped transmission plate.

The invention further provides that the regulating and controlling assembly further comprises an L-shaped supporting plate fixedly connected to the upper surface of the workbench, one end of the L-shaped supporting plate is fixedly connected with a regulating and controlling supporting plate, two regulating and controlling slide ways are symmetrically arranged on the surface of the regulating and controlling supporting plate, the regulating and controlling transmission block is slidably arranged in the corresponding regulating and controlling slide way, one side surface of the regulating and controlling supporting plate is fixedly connected with a clamping frame body, the upper surface of the clamping frame body is provided with a trapezoid regulating and controlling opening, the upper end of the liquid taking clamping claw is matched with the trapezoid regulating and controlling opening, one side surface of the clamping transmission block, which is close to the liquid taking clamping claw, is fixedly connected with a clamping supporting plate, and arc springs are fixedly connected between the two opposite side surfaces of the clamping supporting plate and the corresponding liquid taking clamping claw.

The lifting adjusting device is further characterized in that the lower surface of the L-shaped supporting plate is rotatably connected with a lifting adjusting column, the peripheral side face of the lifting adjusting column is provided with a lifting adjusting groove, one end of the lifting adjusting groove is formed by connecting a spiral groove with a vertical groove, the other side face of the adjusting transmission block is fixedly connected with an adjusting transmission column, a horizontal transmission plate is fixedly connected between the two adjusting transmission columns, the other side face of the adjusting support plate is provided with a lifting guide groove, the lifting guide groove is internally provided with a lifting transmission block in a sliding mode, telescopic rods and a second reset spring are fixedly connected in the lifting transmission block and the lifting guide groove, the second reset spring is sleeved outside the telescopic rods, the horizontal transmission plate is fixedly connected with the lifting transmission block, and the lifting transmission column is in sliding fit with the lifting adjusting groove.

The extraction assembly is further arranged, the extraction assembly comprises an extraction support column rotationally connected to the upper surface of the workbench, two extraction limiting strips are symmetrically and fixedly connected to the peripheral side surface of the extraction support column, the extraction support column is fixedly connected with an extraction support disc, the collection frame is arranged on the extraction limiting strips and the peripheral side surface of the extraction support column in a sliding mode, a liquid discharge branch pipe is fixedly connected to the peripheral side surface of the collection frame, an extraction driving gear is fixedly connected to the peripheral side surface of the extraction support column, a driving circular ring is rotationally connected to the upper surface of the extraction driving gear, a third reset spring is fixedly connected between the driving disc and the circular guide rail, an extraction transmission gear meshed with the extraction driving gear is rotationally connected to the upper surface of the workbench, and the extraction transmission gear is matched with the arc-shaped transmission gear.

The invention further provides that the upper surface of the extraction supporting plate is fixedly connected with first limit seats which are in one-to-one correspondence with the extraction pipes, the upper surface of the extraction supporting plate is slidably provided with second limit seats which are in one-to-one correspondence with the first limit seats, the second limit seats are connected with the first limit seats through bolts, the lifting chute is formed by sequentially connecting a plurality of first horizontal grooves, lifting grooves, second horizontal grooves and descending grooves, the lower surface of the workbench is rotationally connected with the extraction driving plate, the extraction driving plate is fixedly connected with the extraction regulation and control block, the circumferential side surface of the extraction driving plate is fixedly connected with a plurality of arc-shaped driving racks, the lower surface of the workbench is rotationally connected with an adjusting gear matched with the arc-shaped driving racks, the lower surface of the adjusting gear is fixedly connected with a fourth driving wheel, and the fourth driving wheel is connected with the second driving wheel through a second driving belt.

The liquid storage device has the advantages that 1, the liquid storage assembly, the liquid transfer assembly and the regulating and controlling assembly are arranged, the liquid transfer supporting disc and the liquid storage supporting disc are controlled to synchronously rotate, so that a pipette sequentially passes through the liquid taking station and the liquid discharging station, meanwhile, the liquid storage tank sequentially passes through the liquid taking station, the liquid pushing plate and the liquid taking clamping claw synchronously move downwards and then move upwards, liquid taking and liquid discharging operations are carried out, each pipette can only absorb fixed extraction reagents sequentially, and alternate pollution of reagents caused by frequent pipette replacement and different extraction reagents absorbed by the pipette is avoided.

2. According to the invention, the liquid storage assembly, the liquid transfer assembly, the regulating assembly and the extraction assembly are arranged, when the liquid transfer support plate and the liquid storage support plate rotate for one circle, the extraction support plate synchronously rotates for 72 degrees after one-time solid-phase extraction operation is completed, so that the position of the extraction pipes is switched, the batch automatic extraction is convenient, meanwhile, the installation and the disassembly of the extraction pipes are convenient, the switching process of the extraction pipes is reduced, and the batch extraction efficiency is improved.

3. According to the invention, the extraction assembly is arranged to drive the extraction regulating block to rotate, so that the second lifting transmission column slides along the inside of the lifting chute and then moves up and down when limited along the lifting chute, the two lifting transmission connecting rods are driven to rotate, and then the first lifting transmission column moves up and down synchronously, so that the collecting frame moves up and down synchronously, the sealing and opening control of the lower end part of the extraction pipe is sequentially realized, and the automatic liquid beating process is realized.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a solid phase extraction device for purification and collection of pesticide residues.

Fig. 2 is a schematic view of another angle structure of the present invention.

Fig. 3 is a schematic top view of a part of the structure of the present invention.

FIG. 4 is a schematic diagram of a liquid storage component according to the present invention.

FIG. 5 is a schematic view of a portion of a liquid storage module according to the present invention.

FIG. 6 is a schematic view of a pipetting assembly according to the invention.

FIG. 7 is a schematic view of another angular configuration of a pipetting assembly according to the invention.

FIG. 8 is a longitudinal cross-sectional view of a pipetting assembly of the invention.

FIG. 9 is a schematic diagram of a control assembly according to the present invention.

Fig. 10 is a longitudinal structural cross-sectional view of a regulatory assembly of the present invention.

Fig. 11 is a partially enlarged schematic illustration at a in fig. 10.

FIG. 12 is a schematic diagram of an extraction module according to the present invention.

FIG. 13 is a schematic view of another angle structure of the extraction module of the present invention.

FIG. 14 is a schematic view of another angular structure of the extraction module of the present invention.

In the drawings, the list of components represented by the various numbers is as follows:

1-reservoir, 101-reservoir, 103-access tube, 104-first shutter, 105-second shutter, 106-first drive wheel, 107-second drive wheel, 108-U-drive plate, 110-first shutter, 111-first shutter, 112-first shutter, 113-second shutter, 114-second shutter, 2-transfer module, 201-transfer support plate, 202-pipette, 203-transfer piston, 205-hollow support block, 206-third drive wheel, 207-arc-drive rack, 208-limit slide bar, 210-transfer support 211-internal thread pipe, 212-driving screw, 213-limiting pipe, 214-driving conical gear, 215-driving conical gear, 216-pressing support plate, 3-regulating component, 301-liquid pushing plate, 302-clamping transmission block, 303-liquid taking clamping claw, 304-L-shaped supporting plate, 305-regulating support plate, 306-clamping frame body, 307-trapezoid regulating opening, 308-arc spring, 309-lifting regulating column, 310-lifting regulating groove, 311-regulating transmission column, 312-horizontal transmission plate, 313-lifting guide groove, 314-second reset spring, 4-extracting component, 401-extracting support plate, 402-extracting regulating block, 403-extracting pipe, 404-collecting frame, 405-annular guide rail, 406-lifting sliding chute, 407-lifting transmission connecting rod, 408-lifting transmission column, 409-second lifting transmission column, 410-extraction limit bar, 411-liquid discharge branch pipe, 412-extraction driving gear, 413-third reset spring, 414-extraction transmission gear, 415-first limit seat, 416-second limit seat, 417-arc driving rack, 418-adjusting gear and 419-fourth driving wheel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-14, the present invention is a solid-phase extraction device for purifying and collecting pesticide residues, which includes a workbench, specifically, a liquid storage assembly 1 is rotatably disposed on a surface of the workbench, the liquid storage assembly 1 includes a liquid storage supporting disc 101 rotatably disposed on an upper surface of the liquid storage supporting disc 101, a plurality of liquid storage tanks 102 are fixedly connected to an upper surface of the liquid storage supporting disc 101, five liquid storage tanks 102 (as shown in fig. 4) are provided, wherein a shower agent is stored in two liquid storage tanks 102, an activating agent, a sample agent and an eluting agent are respectively stored in the remaining liquid storage tanks 102, the liquid storage tanks 102 are sequentially distributed in a ring shape, and are sequentially arranged according to the activating agent, the sample agent, the two shower agents and the eluting agent, a liquid taking pipe 103 is fixedly connected to an inner bottom of the liquid storage tank 102, a first opening and closing fan blade 104 and a second opening and closing fan blade 105 are rotatably disposed in the liquid taking pipe 103, the first opening and closing fan blade 104 and the second opening and closing fan blade 105 form a closed disc, and are adhered to an inner wall 103 of the liquid taking pipe 103, and the liquid taking pipe 103 is kept closed.

Further, the surface of the workbench is provided with a liquid transferring assembly 2, the liquid transferring assembly 2 comprises a liquid transferring supporting disc 201 which is rotatably arranged and can move up and down, liquid transferring ports which are in one-to-one correspondence with the liquid storing tanks 102 are formed in the surface of the liquid transferring supporting disc 201, a pipette 202 is fixedly connected to the inner surfaces of the liquid transferring ports, the liquid transferring supporting disc 201 is located above the liquid storing supporting disc 101, a part of downward overlapping area is formed between the liquid transferring supporting disc 201 and the liquid storing tanks, the pipette 202 and the corresponding liquid storing tanks 102 can be coaxially overlapped up and down, the pipette 202 is formed by communicating a liquid transferring storage pipe with a liquid transferring extraction pipe, a liquid transferring piston 203 is arranged in the pipette 202 in a sliding mode, the liquid transferring piston 203 is formed by connecting piston blocks with piston rods, the piston blocks are attached to the inner walls of the pipettes 202, and a liquid transferring butt joint block 204 is fixedly connected to the upper surfaces of the liquid transferring piston 203 through butt joint posts.

Further, the upper surface of the workbench is fixedly connected with a regulating and controlling assembly 3, the regulating and controlling assembly 3 comprises two symmetrically sliding regulating and controlling transmission blocks, one side surface of one regulating and controlling transmission block is fixedly connected with a liquid pushing plate 301, the area corresponding to the lower side of the liquid pushing plate 301 is a liquid draining station (namely, the liquid transferring supporting disc 201 coincides with the liquid storing supporting disc 101, as shown in fig. 3), one side surface of the other regulating and controlling transmission block is fixedly connected with a clamping transmission block 302, two liquid taking clamping claws 303 are symmetrically arranged on one side surface of the clamping transmission block 302 in a rotating mode, and the area corresponding to the lower side of the liquid taking clamping claw 303 is a liquid taking station (as shown in fig. 3).

Further, the surface of the workbench is rotatably provided with an extraction assembly 4, the extraction assembly 4 comprises an extraction supporting plate 401 which is rotatably arranged and an extraction regulating block 402 which is rotatably arranged on the upper surface of the workbench, a plurality of extraction openings are formed in the surface of the extraction supporting plate 401, extraction pipes 403 are slidably arranged in the extraction openings, the extraction pipes 403 are consistent with the pipettes 202 and the liquid storage tanks 102 in number, the extraction supporting plate 401 is positioned below the pipetting supporting plate 201, a certain overlapping area exists between the extraction supporting plate 401 and the pipettes 202, the coaxial center of the extraction supporting plate 401 and the corresponding extraction pipe 403 is overlapped up and down (namely, the position corresponding to a liquid taking station) can be met, a collecting frame 404 is slidably arranged below the extraction supporting plate 401, the inner bottom of the collecting frame 404 is made of elastic materials, when collecting frame 404 is hugged closely with extraction pipe 403 lower extreme, extraction pipe 403 keeps airtight, when collecting frame 404 moves down and keeps away from extraction pipe 403, extraction pipe 403 lower extreme portion is opened, collecting frame 404 lower surface fixedly connected with annular guide rail 405, extraction regulation and control piece 402 week side has seted up lift spout 406, workstation upper surface fixedly connected with lift supporting shoe, regulation and control supporting shoe opposite both sides face all rotates and is connected with lift transmission connecting rod 407, fixed connection between two lift transmission connecting rods 407, one of them lift transmission connecting rod 407 one end fixedly connected with annular guide rail 405 sliding fit's first lift transmission post 408, another lift transmission connecting rod 407 one end fixedly connected with lift spout 406 sliding fit's second lift transmission post 409.

In the initial state, the corresponding pipette 202 firstly sucks the corresponding reagent (namely, the pipette 202 at the position A1 sucks the activating agent, the pipette 202 at the position B1 sucks the sample reagent, the pipette 202 at the position C1 sucks the shower agent, as shown in FIG. 3), controls the pipette support disc 201 to move downwards, and then performs the liquid taking and draining operation, and the specific operation process is as follows:

When the pipetting extraction tube part of the pipette 202 at D1 is positioned in the corresponding pipetting tube 103, the first opening and closing fan blade 104 and the second opening and closing fan blade 105 rotate, the pipetting tube 103 is in an open state, the pipette 202 filled with the activating agent at A1 and the extraction tube 403 are coaxial, the two control transmission blocks are controlled to synchronously move downwards, the liquid pushing plate 301 and the clamping transmission block 302 synchronously move downwards, after the liquid pushing plate 301 is attached to the pipetting butt joint block 204 above the pipette 202 at A1, the liquid pushing piston column 203 synchronously moves downwards and discharges the activating agent in the pipette 202 along with the continuous downward movement of the liquid pushing plate 301, the activating agent downwards flows into the corresponding extraction tube 403 and carries out activation treatment on the extraction tube 403, in this process, the clamping transmission block 302 moves downwards, after the liquid taking clamping claw 303 contacts the pipetting butt joint block 204 above the pipette 202 at the position of D1, the liquid taking clamping claw 303 is extruded by external force to rotate away from each other along with the continuing downward movement of the clamping transmission block 302, after the liquid taking clamping claw 303 is separated from the pipetting butt joint block 204 along with the continuing downward movement of the clamping transmission block 302, the external force disappears, the liquid taking clamping claw 303 reversely rotates to grasp the pipetting butt joint block 204, the two regulation and control transmission blocks are controlled to synchronously move upwards, the liquid taking clamping claw 303 drives the corresponding pipetting butt joint block 204 to move upwards, and the pipetting piston 203 at the position of D1 synchronously moves upwards to extract the leaching agent in the liquid storage tank 102 at the position of D1.

After the liquid taking and liquid discharging operation is finished, the liquid transferring support disc 201 is controlled to move upwards, the extraction regulating block 402 is controlled to rotate in the process, the second lifting transmission column 409 slides along the inside of the lifting chute 406 and is extruded by the inner wall of the lifting chute 406, the second lifting transmission column 409 moves downwards to drive the two lifting transmission connecting rods 407 to synchronously rotate, so that the first lifting transmission column 408 moves downwards to drive the collecting frame 404 to synchronously rotate, an activating agent in the extracting tube 403 flows into the collecting frame 404 and is discharged, the liquid transferring support disc 201 and the liquid storage support disc 101 synchronously rotate for 72 degrees, the pipette 202 at the E1 position and the liquid storage tank 102 at the E2 position are synchronously rotated, the two are coaxially overlapped with each other and are both positioned on the liquid taking station, the pipette 202 at the B1 position rotates to the liquid discharging station, in the process, the second lifting transmission column 409 slides along the inside of the lifting chute 406 and is extruded by the inner wall of the lifting chute 406, the second lifting transmission column 409 moves upwards to drive the two lifting transmission connecting rods to synchronously rotate reversely, so that the activating agent in the first lifting transmission column 403 flows into the collecting frame 404 and is driven by the annular guide rail 405, the sample collecting frame 403 is driven to move upwards, the sample extracting tube 403 is held in the extracting tube 403 is attached to the sample is attached to the extracting tube 403, and the sample is held in the sample is attached to the extracting tube 403, and the sample is held in the sample collecting frame 404.

The pipetting support plate 201 and the stock solution support plate 101 are controlled to synchronously rotate again, the cyclic operation is performed in such a way that the pipetting support plate 201 and the stock solution support plate 101 rotate 216 degrees (namely, 3 times of 72 degrees, so that the pipette 202 at the original E1 is positioned on the liquid discharge station), the extraction tube 403 right below the liquid discharge station is sequentially injected with two times of shower agents, the pipette 202 at the original E1 moves and is positioned on the liquid discharge station, after the eluent sucked by the pipette 202 at the original E1 is injected into the extraction tube 403, the extraction tube 403 right below the liquid discharge station completes an extraction process, and in the process that the pipetting support plate 201 and the stock solution support plate 101 rotate 72 degrees again, the extraction support plate 401 synchronously rotates 72 degrees, so that the extraction tube 403 at the B3 is positioned right below the liquid discharge station, and at the moment, the pipette 202 at the original E1 returns to the original state, so that the next extraction operation is performed.

Referring to fig. 2-8, in a second embodiment, based on the first embodiment, the liquid storage assembly 1 further includes a liquid storage supporting shaft rotatably disposed on an upper surface of the working table, the liquid storage supporting shaft is fixedly connected with the liquid storage supporting disc 101, a first driving wheel 106 is fixedly connected to a peripheral side surface of the liquid storage supporting shaft, a second driving wheel 107 is rotatably disposed on a lower surface of the working table, and the second driving wheel 107 is fixedly connected with the liquid storage supporting shaft.

Further, two guide sliding rails 108 are symmetrically and fixedly connected to the upper surface of the liquid storage tank 102, a U-shaped transmission plate 109 is slidably arranged between the two guide sliding rails 108, opening and closing transmission openings are symmetrically formed in the surface of the U-shaped transmission plate 109, the opening and closing transmission openings are respectively formed in two vertical sections of the U-shaped transmission plate 109, and a first reset spring 110 is fixedly connected between the U-shaped transmission plate 109 and the upper surface of the liquid storage tank 102; the first opening and closing fan blade 104 is fixedly connected with an opening and closing shaft, the opening and closing shaft is rotationally connected with the liquid taking pipe 103, one end of the opening and closing shaft penetrating through the liquid taking pipe 103 is fixedly connected with a first opening and closing disc 111, one side of the first opening and closing disc 111, which is close to the first opening and closing fan blade 104, is fixedly connected with a first opening and closing transmission column 112, one side of the second opening and closing fan blade 105 is fixedly connected with a plurality of opening and closing pipes, the opening and closing pipe is sleeved on the peripheral side of the opening and closing shaft, one end of the opening and closing pipe penetrating through the liquid taking pipe 103 is fixedly connected with a second opening and closing disc 113, one side of the second opening and closing disc 113, which is far away from the second opening and closing fan blade 105, is fixedly connected with a second opening and closing transmission column 114, the first opening and closing transmission column 112 and the second opening and closing transmission column 114 are respectively located at eccentric positions, the first opening and closing transmission column 112 and the second opening and closing transmission column 114 are respectively located inside corresponding opening and closing transmission openings, and synchronously moving along with the U-shaped transmission plate 109, and further driving the first opening and the second opening and closing transmission column 112 and the second opening and closing transmission column.

Further, the pipetting assembly 2 further comprises a hollow supporting seat 205 fixedly connected to the upper surface of the workbench, a third driving wheel 206 is rotatably connected to the peripheral side surface of the hollow supporting seat 205, the third driving wheel 206 is connected with the first driving wheel 106 through a first driving belt, an arc-shaped driving rack 207 is fixedly connected to the peripheral side surface of the third driving wheel 206, two limit supporting pipes 208 are symmetrically and fixedly connected to the upper surface of the third driving wheel 206, two limit sliding rods 209 are symmetrically and fixedly connected to the lower surface of the pipetting supporting plate 201, the limit sliding rods 209 slide along the inner portions of the corresponding limit supporting pipes 208, the pipetting supporting plate 201 is kept to stably move up and down, the limit sliding rods 209 are in sliding fit with the corresponding limit supporting pipes 208, a pipetting supporting seat 210 is fixedly connected to the lower surface of the pipetting supporting plate 201, an inner threaded pipe 211 is rotatably connected to the lower surface of the pipetting supporting seat 210, and a driving screw 212 is in threaded fit with the inner portion of the inner threaded pipe 211.

Further, two limiting support plates are symmetrically and fixedly connected to the upper surface of the hollow support seat 205, a limiting tube 213 is fixedly connected between the two limiting support plates, the limiting tube 213 is in sliding fit with the inner threaded tube 211, the inner threaded tube 211 is kept to vertically move up and down under the sliding fit between the limiting tube 213 and the peripheral side surface of the inner threaded tube 211, a transmission bevel gear 214 is fixedly connected to one end of a driving screw 212 penetrating through a workbench, an extension support plate is fixedly connected to the lower surface of the workbench, a driving bevel gear 215 meshed with the transmission bevel gear 214 is rotatably connected to one side surface of the extension support plate, a first driving motor is fixedly arranged on the other side surface of the extension support plate, a lower pressing support plate 216 corresponding to the U-shaped transmission plate 109 is fixedly connected to the lower surface of the pipette 202, and the lower pressing support plate 216 is arranged on the lower surface of a pipetting storage tube portion of the pipette 202.

The operation process of the embodiment is as follows: in the initial state, the pipettes 202 at A1, B1 and C1 are respectively provided with an activating agent, a sample reagent and an eluting reagent, the pipette 202 at D1 is positioned right above the corresponding liquid storage tank 102, the eluting reagent is arranged in the liquid storage tank 102, a first driving motor is started to drive a driving bevel gear 215 to rotate, under the meshing effect of the driving bevel gear 215 and a transmission bevel gear 214, the transmission bevel gear 214 rotates to drive a driving screw 212 to rotate, under the threaded cooperation effect of the driving screw 212 and an internal threaded pipe 211, the internal threaded pipe 211 slides downwards along a limiting pipe 213, a limiting slide rod 209 slides downwards along the inside of the corresponding limiting branch pipe 208, further the pipetting support disc 201 is driven to synchronously move downwards, when the lower end part of the pipette 202 at D1 is level with the upper surface of the liquid taking pipe 103, the lower pressing support plate 216 is attached to the corresponding U-shaped transmission plate 109, along with the continuous downward movement of the pipetting support plate 201, the lower pressing support plate 216 presses the U-shaped transmission plate 109, the first return spring 110 is compressed, the U-shaped transmission plate 109 moves downward along the guide sliding rail 108, the opening and closing transmission port moves synchronously with the U-shaped transmission plate 109, and further drives the first opening and closing transmission column 112 and the second opening and closing transmission column 114 inside the opening and closing transmission port to move synchronously, the first opening and closing transmission column 112 drives the first opening and closing plate 111 to rotate anticlockwise (as shown in fig. 5), the first opening and closing fan blade 104 rotates anticlockwise synchronously, the second opening and closing transmission column 114 drives the second opening and closing plate 113 to rotate clockwise (as shown in fig. 5), the second opening and closing fan blade 105 rotates synchronously clockwise, the first opening and closing fan blade 104 and the second opening and closing fan blade 105 rotate mutually, the liquid taking pipe 103 is opened, and the pipetting pick-up tube portion of the pipette 202 is located inside the pick-up tube 103.

After the liquid taking and draining operation is finished, the first driving wheel 106 is controlled to rotate by 72 degrees, the third driving wheel 206 is driven to synchronously rotate by 72 degrees under the connection action of the first driving belt, so that the liquid storage supporting disc 101 and the liquid transferring supporting disc 201 respectively drive the liquid storage tank 102 and the liquid transferring tube 202 to rotate by 72 degrees, the liquid storage tank 102 at the E2 position and the liquid transferring tube 202 at the E1 position synchronously rotate to a liquid taking station, the upper and lower coaxial centers of the liquid storage tank 102 and the liquid transferring tube 202 are mutually overlapped, and the liquid transferring tube 202 at the B1 position rotates to a liquid draining station.

Referring to fig. 9-14, in the third embodiment, based on the first embodiment and the second embodiment, the adjusting and controlling assembly 3 further includes an L-shaped support plate 304 fixedly connected to the upper surface of the workbench, one end of the L-shaped support plate 304 is fixedly connected with an adjusting and controlling support plate 305, two adjusting and controlling slides are symmetrically provided on the surface of the adjusting and controlling support plate 305, the adjusting and controlling transmission block is slidably disposed inside the corresponding adjusting and controlling slide, one side of the adjusting and controlling support plate 305 is fixedly connected with a clamping frame 306, the upper surface of the clamping frame 306 is provided with a trapezoid adjusting and controlling opening 307, the upper end of the liquid taking clamp 303 is adapted to the trapezoid adjusting and controlling opening 307, the upper end of the liquid taking clamp 303 is in a bent structure, the lower surface of the liquid taking clamp 303 is in an inclined sliding surface structure, one side of the clamping transmission block 302 close to the liquid taking clamp 303 is fixedly connected with clamping support plates, and arc springs 308 are fixedly connected between the opposite sides of the clamping support plates and the corresponding liquid taking clamp 303.

Further, the lower surface of the L-shaped supporting plate 304 is rotatably connected with a lifting adjusting column 309, the peripheral side surface of the lifting adjusting column 309 is provided with a lifting adjusting groove 310, one end of the lifting adjusting groove 310 is formed by connecting a spiral groove with a vertical groove, the upper surface of the L-shaped supporting plate 304 is fixedly provided with a second driving motor, an output shaft of the second driving motor is fixedly connected with the lifting adjusting column 309, the other side surface of the adjusting and controlling transmission block is fixedly connected with a regulating and controlling transmission column 311, a horizontal transmission plate 312 is fixedly connected between the two regulating and controlling transmission columns 311, the other side surface of the regulating and controlling supporting plate 305 is provided with a lifting guide groove 313, the lifting transmission block is slidably arranged in the lifting guide groove 313, the lifting transmission block and the inner bottom of the lifting guide groove are fixedly connected with a telescopic rod and a second reset spring 314, the second reset spring 314 is sleeved outside the telescopic rod, the horizontal transmission plate 312 is fixedly connected with the lifting transmission column 312, one side surface of the horizontal transmission plate 312 is fixedly connected with the lifting transmission column, the lifting transmission column is slidably matched with the lifting adjusting and controlling groove 310, the lifting adjusting column 309 is rotatably matched with the lifting adjusting and controlling groove 310, and the horizontal transmission column is slidably matched with the lifting and driving the lifting transmission column to move downwards along the spiral groove section of the lifting adjusting and controlling groove 310.

Further, the extraction assembly 4 further comprises an extraction support column rotationally connected to the upper surface of the workbench, two extraction limiting strips 410 are symmetrically and fixedly connected to the peripheral side surface of the extraction support column, the extraction support column is fixedly connected with an extraction support disc 401, a collection frame 404 is slidably arranged on the extraction limiting strips 410 and the peripheral side surface of the extraction support column, a liquid discharge branch pipe 411 is fixedly connected to the peripheral side surface of the collection frame 404, an extraction driving gear 412 is fixedly connected to the peripheral side surface of the extraction support column, a driving circular ring is rotationally connected to the upper surface of the extraction driving gear 412, a third reset spring 413 is fixedly connected between the drive disc and the annular guide rail 405, an extraction driving gear 414 meshed with the extraction driving gear 412 is rotationally connected to the upper surface of the workbench, and the extraction driving gear 414 is matched with the arc-shaped driving rack 207.

Further, the upper surface of the extraction supporting plate 401 is fixedly connected with first limit seats 415 which are in one-to-one correspondence with the extraction pipes 403, the upper surface of the extraction supporting plate 401 is slidably provided with second limit seats 416 which are in one-to-one correspondence with the first limit seats 415, the second limit seats 416 are connected with the first limit seats 415 through bolts, the inside of the second limit seats 416 and the inside of the first limit seats 415 are made of elastic materials, the extraction supporting plate is convenient to cling to the peripheral side surface of the extraction pipes 403, the position of the extraction pipes 403 is kept fixed, the lifting sliding chute 406 is formed by sequentially connecting a plurality of first horizontal grooves, lifting grooves, second horizontal grooves and descending grooves, the first horizontal grooves, the second horizontal grooves and the lifting grooves are all five sections, the lower surface of the working table is rotatably connected with an extraction driving plate according to the periods of the first horizontal grooves, the descending grooves, the second horizontal grooves and the lifting grooves, the lower surface of the working table is fixedly connected with a third driving motor through a mounting frame, the upper surface of the extraction driving plate is fixedly connected with the peripheral side surface of the extraction control block 402, the lifting sliding chute 406 is fixedly connected with a plurality of arc-shaped driving racks 417, the lower surface of the lifting driving plate is fixedly connected with a plurality of arc-shaped driving wheels 417, and the arc-shaped driving wheels are sequentially connected with the arc-shaped driving wheels 417, and the arc-shaped driving wheels are fixedly connected with the arc-shaped driving wheels 417 are connected with the lower surfaces of the two arc-shaped driving wheels.

In the operation process of this embodiment, in the initial state, the corresponding pipette 202 firstly absorbs the corresponding reagent (that is, the pipette 202 at the position A1 absorbs the activator, the pipette 202 at the position B1 absorbs the sample reagent, the pipette 202 at the position C1 absorbs the shower agent, as shown in FIG. 3), when the pipetting support plate 201 moves downwards and the pipetting tube of the pipette 202 is positioned in the pipetting tube 103, the second driving motor is started to drive the lifting adjusting column 309 to rotate, the lifting adjusting column 309 rotates, the lifting driving column slides along the spiral groove section of the lifting adjusting groove 310, the horizontal driving plate 312 is driven to move downwards, the lifting driving block synchronously slides downwards along the inside of the lifting guide groove 313, the telescopic rod and the second reset spring 314 are compressed, under the connection action of the adjusting driving column 311, the two adjusting driving blocks synchronously move downwards, the pipetting plate 301 and the clamping driving block 302 synchronously move downwards, after the pipetting plate 301 and the pipetting block 204 above the pipette 202 are positioned in the position A1, the pipetting piston 203 synchronously moves downwards and the pipetting tube 403 synchronously, and the pipetting tube 403 is correspondingly moved downwards, and the activator is discharged out of the pipetting tube 403 is sequentially activated, and the activator is sequentially activated.

In this process, the clamping transmission block 302 moves downward synchronously with the regulation and control transmission block, after the liquid taking clamping claw 303 contacts the liquid transferring butt joint block 204 above the pipette 202 at the position of D1, the liquid taking clamping claw 303 moves downward with the continuous downward movement of the clamping transmission block 302, so that the liquid taking clamping claw 303 rotates away from each other, the arc-shaped spring 308 is stretched, the clamping transmission block 302 moves downward continuously, after the liquid taking clamping claw 303 breaks away from the liquid transferring butt joint block 204, the external force disappears, under the elastic recovery action of the arc-shaped spring 308, the liquid taking clamping claw 303 rotates reversely to grasp and limit the liquid transferring butt joint block 204, at the moment, the lifting transmission column moves to the tail end of the spiral groove (namely, one end of the spiral groove, which is close to the vertical groove, the second reset spring 314 is completely compressed), continues to rotate along with the lifting adjustment column 309, the lifting transmission column is positioned inside the vertical groove, under the elastic recovery action of the second reset spring 314, the lifting transmission column moves upward along the vertical groove, the horizontal transmission plate 312 is driven to move upward synchronously, the regulation and control transmission block moves upward synchronously, so that the liquid taking clamping claw 303 drives the corresponding liquid taking butt joint block 204 to move upward, the liquid taking clamping claw 303 moves upward, under the elastic recovery action of the arc-shaped spring 308, the liquid taking clamping claw 307 moves upward along with the corresponding liquid taking clamping claw 307, and moves forward to the liquid taking clamping claw 307, and moves up the liquid 307, and continues to the liquid taking clamping claw 307, and moves in the opposite direction, and the opposite to the liquid taking clamping claw 307, and moves in the opposite direction, and the liquid taking clamping claw 307, and continues to the liquid taking clamping claw and is sequentially, and moves 307, and moves in opposite to the liquid taking clamping claw and is moved 307.

In the process of liquid taking and liquid discharging, a third driving motor is started to drive the extraction regulating block 402 to rotate, a second lifting transmission column 409 moves along the inside of the first horizontal groove, the collecting frame 404 is attached to the lower end portion of the extraction tube 403, the extraction tube 403 is kept airtight, after liquid taking and liquid discharging operation is completed (the second lifting transmission column 409 is located on one side of the first horizontal groove close to the descending groove), the first driving motor is started to drive the driving conical gear 215 to reversely rotate, under the meshing effect of the driving conical gear 215 and the driving conical gear 214, the driving screw 212 reversely rotates, under the threaded cooperation effect of the driving screw 212 and the internal thread tube 211, the internal thread tube 211 slides upwards along the limiting tube 213 to further drive the liquid transferring support disc 201 to synchronously move upwards, at the moment, the second lifting transmission column 409 slides along the descending groove, the second lifting transmission column 409 gradually moves downwards under the limitation of the descending groove to drive the lifting transmission link 407 to rotate, the first lifting transmission column 408 synchronously moves downwards along with the lifting transmission link 407, and then drives the collecting frame 403 to move downwards along with the lifting transmission link to move downwards, under the meshing effect of the driving conical gear 215 and the driving conical gear 214, the internal thread tube 211 is enabled to move along with the lower end portion of the collecting frame 403 to be far away from the extraction tube 404, the corresponding to the extraction tube 404 is opened, and the liquid discharging liquid is discharged into the collecting frame 403, and the corresponding to the inside of the collecting frame 404 is enabled to drain the extraction tube 404.

Simultaneously, the extraction regulation and control block 402 rotates to drive the extraction driving disc to synchronously rotate, the arc-shaped driving racks 417 synchronously move along with the extraction driving disc, when the second lifting transmission column 409 moves along the tail end of the descending groove (namely, one side of the descending groove, which is close to the second horizontal groove), one arc-shaped driving rack 417 is meshed with the adjusting gear 418, along with the continuous rotation of the extraction regulation and control block 402, the second lifting transmission column 409 slides along the second horizontal groove, the collecting frame 404 keeps a state of keeping away from the extraction tube 403, the activator is continuously discharged, simultaneously, under the meshing action of the arc-shaped driving racks 417 and the adjusting gear 418, the adjusting gear 418 rotates by 72 degrees, and then the fourth transmission wheel 419 is synchronously rotated, under the connecting action of the second transmission belt, the second driving wheel 107 rotates 72 ° synchronously, the first driving wheel 106 and the liquid storage supporting disc 101 rotate 72 ° synchronously, under the connection action of the first driving belt, the third driving wheel 206 rotates 72 ° synchronously along with the first driving wheel 106, so that the liquid storage tank 102 and the pipette 202 are driven by the liquid storage supporting disc 101 and the pipetting supporting disc 201 to rotate 72 ° respectively, the liquid storage tank 102 at the original E2 and the pipette 202 at the original E1 synchronously rotate to the liquid taking station, the upper and lower coaxial centers of the two coincide mutually, the pipette 202 at the original B1 rotates to the liquid draining station, and at the moment, the second lifting driving column 409 moves to the end of the second horizontal groove (namely, the end of the second horizontal groove, which is close to the rising groove).

The pipetting supporting plate 201 is controlled to move downwards again until the pipetting extracting tube part of the pipette 202 at E1 is positioned inside the liquid extracting tube 103 corresponding to the liquid storage tank 102 at E2, in the process, the second lifting transmission column 409 slides along the lifting groove, the second lifting transmission column 409 is gradually moved upwards under the limitation of the lifting groove, and further the two lifting transmission connecting rods 407 are driven to synchronously rotate reversely, the first lifting transmission column 408 moves upwards synchronously along with the reverse rotation of the lifting transmission connecting rods 407, and then the annular guide rail 405 is lifted, the collecting frame 404 is driven to move upwards, the collecting frame 404 is gradually close to the lower end of the extracting tube 403 until the inner bottom of the collecting frame 404 is attached to the lower end part of the extracting tube 403, and the extracting tube 403 is kept in a closed state.

Through the rotation of the lifting adjusting column 309, the liquid pushing plate 301 and the liquid taking clamping claw 303 are driven to synchronously move downwards, the liquid pushing plate 301 performs liquid discharging operation on the pipette 202 at the original position B1, a sample reagent enters the extraction tube 403, the liquid pushing plate 301 and the liquid taking clamping claw 303 synchronously move upwards to lift the liquid moving piston column 203 corresponding to the pipette 202 at the original position E1, further liquid taking operation on eluent in the liquid storage tank 102 at the original position E2 is achieved, in the process, the second lifting driving column 409 slides along the first horizontal groove, and the extraction tube 403 keeps airtight and absorbs substances in the sample reagent.

The control pipetting supporting plate 201 moves up, the second lifting transmission column 409 slides along the descending groove, the collecting frame 404 moves down, the lower end of the extraction tube 403 is opened, and the absorbed sample reagent waste liquid inside the extraction tube 403 flows into the collecting frame 404 and is discharged into the corresponding waste liquid collecting device along with the liquid discharge branch pipe 411.

Meanwhile, when the second lifting transmission column 409 is meshed with the adjusting gear 418 along the end of the descending groove (i.e. one side of the descending groove close to the second horizontal groove), the other arc-shaped driving rack 417 slides along the second horizontal groove, the collecting frame 404 keeps a state far away from the extraction tube 403, the activator is continuously discharged, simultaneously under the meshing effect of the arc-shaped driving rack 417 and the adjusting gear 418, the adjusting gear 418 rotates 72 degrees, and then drives the fourth driving wheel 419 to synchronously rotate, under the connecting effect of the second driving belt and the first driving belt, the second driving wheel 107 synchronously rotates 72 degrees, the stock solution supporting disc 101 and the pipetting supporting disc 201 respectively drive the stock solution pot 102 and the pipetting tube 202 to synchronously rotate 72 degrees, so that the stock solution pot 102 at the position of the stock solution D2 and the pipetting tube 202 at the position of the stock solution A1 are mutually overlapped, at the same time, the second lifting transmission column 409 moves to the end of the second horizontal groove (i.e. one end of the second horizontal groove close to the ascending groove), the second driving wheel 419 synchronously rotates, the stock solution pot 202 is correspondingly moved to the liquid draining station 411 at the position of the stock solution pot 102 at the position of the stock solution D2, and the stock solution C1 is discharged into the liquid draining device, and the inside the stock solution is correspondingly discharged from the liquid draining device 403 at the position of the stock solution pot 2.

The circulation operation is performed, when the liquid storage supporting disc 101 and the liquid transferring supporting disc 201 rotate again for 144 ° (namely 72 ° for two times, the liquid taking and liquid discharging operations are completed for two times), so that the pipette 202 at the original position D1 and the pipette 202 at the original position E1 move to the liquid discharging station, the eluent and the eluent in the pipette 202 are sequentially injected into the extraction tube 403, the operation of leaching and eluting the sample in the extraction tube 403 for removing the unexpected substances except for the pesticide residues is completed again, after the impurities are removed, the eluent is injected to elute the pesticide residues absorbed in the extraction tube 403, the pesticide residues are collected through the collecting device after being discharged, and simultaneously the liquid storage tank 102 at the original position C2 and the pipette 202 at the original position B1 and the liquid storage tank 102 at the original position B2 are synchronously rotated to the liquid taking station, and the pipette at the original position B1 and the pipette at the original position C1 respectively perform the leaching of the sample reagent in the liquid storage tank 102 at the original position C2 and the eluent in the liquid storage tank 102 at the original position B2.

When the pipette 202 at the original E1 moves to the liquid discharge station and performs liquid discharge operation (i.e. after the liquid storage supporting plate 101 and the liquid transfer supporting plate 201 rotate for 72 ° four times), the arc-shaped transmission rack 207 is meshed with the extraction transmission gear 414, and as the liquid storage supporting plate 101 and the liquid transfer supporting plate 201 continue to rotate for 72 ° (i.e. the liquid storage supporting plate 101 and the liquid transfer supporting plate 201 complete 360 °) the extraction transmission gear 414 rotates for one circle under the meshing effect of the arc-shaped transmission rack 207 and the extraction transmission gear 414, and under the meshing effect of the extraction transmission gear 414 and the extraction driving gear 412, the extraction driving gear 412 is driven to rotate for 72 °, so that the extraction supporting plate 401 synchronously rotates for 72 ° and the extraction tube 403 at the original B3 rotates to the position right below the liquid discharge station, thereby facilitating the next solid phase extraction operation.

After the solid-phase extraction is finished, the extracted extraction tube 403 is rotated away from the liquid discharge station, the connection between the first limiting seat 415 and the second limiting seat 416 is canceled by manually rotating the bolts, so that the second limiting seat 416 slides away from the extraction tube 403, the extraction tube 403 is pulled up to finish the separation between the extraction tube 403 and the extraction support plate 401, when the extraction tube 403 is required to be installed, the extraction tube 403 is inserted into a corresponding extraction port, the lower end part of the extraction tube 403 is tightly attached to the bottom in the collecting frame 404, the second limiting seat 416 is pushed to slide and mutually approach the first limiting seat 415, the second limiting seat 416 slides and the first limiting seat 415 is attached to the peripheral side surface of the extraction tube 403, and the bolts are utilized to slide the second limiting seat 416 and connect the first limiting seat 415, so that the position of the extraction tube 403 is limited.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a solid phase extraction device for incomplete purification of farming is collected, includes the workstation, workstation surface rotation is provided with and deposits liquid subassembly (1), its characterized in that:

The liquid storage assembly (1) comprises a liquid storage supporting disc (101) which is rotatably arranged, a plurality of liquid storage tanks (102) are fixedly connected to the upper surface of the liquid storage supporting disc (101), a liquid taking pipe (103) is fixedly connected to the inside of each liquid storage tank (102), and a first opening and closing fan blade (104) and a second opening and closing fan blade (105) are rotatably arranged in each liquid taking pipe (103);

The surface of the workbench is provided with a pipetting component (2), the pipetting component (2) comprises a pipetting supporting disc (201) which is rotatably arranged and can move up and down, pipetting ports which are in one-to-one correspondence with the liquid storage tanks (102) are formed in the surface of the pipetting supporting disc (201), pipettes (202) are fixedly connected to the inside of the pipetting ports, pipetting piston columns (203) are slidably arranged in the pipettes (202), and pipetting butt joint blocks (204) are fixedly connected to the upper surface of the pipetting piston columns (203) through butt joint columns;

The workbench is characterized in that a regulating and controlling assembly (3) is fixedly connected to the upper surface of the workbench, the regulating and controlling assembly (3) comprises two symmetrically sliding regulating and controlling transmission blocks, one side surface of each regulating and controlling transmission block is fixedly connected with a liquid pushing plate (301), one side surface of each regulating and controlling transmission block is fixedly connected with a clamping transmission block (302), and two liquid taking clamping claws (303) are symmetrically arranged on one side surface of each clamping transmission block (302) in a rotating mode;

The utility model provides a workstation surface rotates and is provided with extraction subassembly (4), extraction subassembly (4) are including rotating extraction supporting disk (401) and the extraction regulation and control piece (402) of setting at the workstation upper surface that set up, a plurality of extraction mouths have been seted up on extraction supporting disk (401) surface, extraction mouthful inside slip is provided with extraction pipe (403), extraction supporting disk (401) below slip is provided with collects frame (404), collect fixedly connected with annular rail (405) under frame (404), lift spout (406) have been seted up to extraction regulation and control piece (402) week side, workstation upper surface fixedly connected with lift supporting piece, regulation and control supporting piece both sides face all rotate and are connected with lift transmission connecting rod (407), two between lift transmission connecting rod (407) fixed connection, one of them lift transmission connecting rod (407) one end fixedly connected with annular rail (405) sliding fit's first lift transmission post (408), another lift transmission connecting rod (407) one end fixedly connected with lift spout (406) sliding fit's second lift transmission post (409).

2. The solid-phase extraction device for purifying and collecting pesticide residues according to claim 1, wherein the liquid storage assembly (1) further comprises a liquid storage supporting shaft rotatably arranged on the upper surface of the workbench, the liquid storage supporting shaft is fixedly connected with the liquid storage supporting disc (101), a first driving wheel (106) is fixedly connected to the peripheral side surface of the liquid storage supporting shaft, a second driving wheel (107) is rotatably arranged on the lower surface of the workbench, and the second driving wheel (107) is fixedly connected with the liquid storage supporting shaft.

3. The solid phase extraction device for purifying and collecting pesticide residues according to claim 2, wherein two guide sliding rails (108) are symmetrically and fixedly connected to the upper surface of the pesticide residue storage tank (102), a U-shaped transmission plate (109) is slidably arranged between the two guide sliding rails (108), opening and closing transmission openings are symmetrically formed in the surface of the U-shaped transmission plate (109), and a first reset spring (110) is fixedly connected between the U-shaped transmission plate (109) and the upper surface of the pesticide residue storage tank (102);

The liquid taking device comprises a liquid taking pipe (103), a liquid taking pipe (103) and a first opening and closing disc (111), wherein one side of the first opening and closing fan blade (104) is fixedly connected with an opening and closing shaft, the opening and closing shaft is connected with the liquid taking pipe (103) in a rotating mode, one end of the opening and closing shaft penetrating through the liquid taking pipe (103) is fixedly connected with the first opening and closing disc (111), one side of the first opening and closing disc (111) close to the first opening and closing fan blade (104) is fixedly connected with a first opening and closing driving column (112), one side of the second opening and closing fan blade (105) is fixedly connected with a plurality of opening and closing pipes, the opening and closing pipe is sleeved on the peripheral side of the opening and closing shaft, one end of the opening and closing pipe penetrating through the liquid taking pipe (103) is fixedly connected with a second opening and closing disc (113), one side of the second opening and closing disc (113) far away from the second opening and closing fan blade (105) is fixedly connected with a second opening and closing driving column (114), and the first opening and closing driving column (112) and the second opening and closing driving column (114) are respectively located inside corresponding opening and closing driving ports.

4. A solid-phase extraction device for purifying and collecting pesticide residues according to claim 3, wherein the pipetting component (2) further comprises a hollow supporting seat (205) fixedly connected to the upper surface of the workbench, a third driving wheel (206) is rotatably connected to the peripheral side surface of the hollow supporting seat (205), the third driving wheel (206) is connected with the first driving wheel (106) through a first driving belt, an arc-shaped driving rack (207) is fixedly connected to the peripheral side surface of the third driving wheel (206), and two limiting branch pipes (208) are symmetrically and fixedly connected to the upper surface of the third driving wheel (206);

Two limit sliding rods (209) are symmetrically and fixedly connected to the lower surface of the liquid-transferring support disc (201), the limit sliding rods (209) are in sliding fit with corresponding limit branch pipes (208), a liquid-transferring support seat (210) is fixedly connected to the lower surface of the liquid-transferring support disc (201), an inner threaded pipe (211) is rotatably connected to the lower surface of the liquid-transferring support seat (210), and a driving screw (212) is in threaded fit with the inner threaded pipe (211).

5. The solid phase extraction device for purifying and collecting pesticide residues according to claim 4, wherein two limiting support plates are symmetrically and fixedly connected to the upper surface of the hollow support seat (205), a limiting pipe (213) is fixedly connected between the two limiting support plates, and the limiting pipe (213) is in sliding fit with the internally threaded pipe (211);

the driving screw (212) penetrates through one end of the workbench and is fixedly connected with a transmission bevel gear (214), the lower surface of the workbench is fixedly connected with an extension support plate, one side surface of the extension support plate is rotationally connected with a driving bevel gear (215) meshed with the transmission bevel gear (214), and the lower surface of the pipette (202) is fixedly connected with a pressing support plate (216) corresponding to the U-shaped transmission plate (109).

6. The solid-phase extraction device for purifying and collecting pesticide residues according to claim 5, wherein the regulating and controlling assembly (3) further comprises an L-shaped supporting plate (304) fixedly connected to the upper surface of the workbench, one end of the L-shaped supporting plate (304) is fixedly connected with a regulating and controlling supporting plate (305), two regulating and controlling slide ways are symmetrically arranged on the surface of the regulating and controlling supporting plate (305), and the regulating and controlling transmission block is slidably arranged in the corresponding regulating and controlling slide way;

The liquid taking device comprises a liquid taking clamping claw (303), a clamping transmission block (302) and a clamping support plate, wherein one side face of the clamping support plate (305) is fixedly connected with a clamping frame body (306), a trapezoid adjusting opening (307) is formed in the upper surface of the clamping frame body (306), the upper end of the liquid taking clamping claw (303) is matched with the trapezoid adjusting opening (307), one side face of the clamping transmission block (302) close to the liquid taking clamping claw (303) is fixedly connected with the clamping support plate, and arc springs (308) are fixedly connected between the two opposite side faces of the clamping support plate and the corresponding liquid taking clamping claw (303).

7. The solid phase extraction device for purifying and collecting pesticide residues according to claim 6, wherein the lower surface of the L-shaped supporting plate (304) is rotatably connected with a lifting adjusting column (309), a lifting adjusting groove (310) is formed in the peripheral side surface of the lifting adjusting column (309), and one end of the lifting adjusting groove (310) is formed by communicating a spiral groove with a vertical groove;

The utility model discloses a lifting control device, including regulation and control transmission piece, regulation and control transmission piece another side fixedly connected with transmission post (311), two fixedly connected with horizontal drive board (312) between regulation and control transmission post (311), lift guide way (313) have been seted up to regulation and control extension board (305) another side, lift guide way (313) inside slip is provided with the lift transmission piece, fixed connection telescopic link and second reset spring (314) in lift transmission piece and the lift guide way, second reset spring (314) cover is established outside the telescopic link, just fixed connection between horizontal drive board (312) and lift transmission piece (313), a side fixedly connected with lift transmission post, sliding fit between lift transmission post and the lift regulation and control groove (310).

8. The solid phase extraction device for purifying and collecting pesticide residues according to claim 7, wherein the extraction assembly (4) further comprises an extraction support column rotationally connected to the upper surface of the workbench, two extraction limiting strips (410) are symmetrically and fixedly connected to the peripheral side surface of the extraction support column, and the extraction support column is fixedly connected with an extraction support disc (401);

the utility model discloses a device for extracting extraction waste liquid, including extraction drive gear (207), extraction support column (404), collection frame (404) slip sets up in extraction limit (410) and extraction support column week side, collection frame (404) week side fixedly connected with flowing back branch pipe (411), extraction support column week side fixedly connected with extraction drive gear (412), extraction drive gear (412) upper surface rotation is connected with the drive ring, fixedly connected with third reset spring (413) between drive disk and the annular guide rail (405), workstation upper surface rotation is connected with extraction drive gear (414) with extraction drive gear (412) engaged with, looks adaptation between extraction drive gear (414) and the arc transmission rack (207).

9. The solid-phase extraction device for purifying and collecting pesticide residues according to claim 8, wherein the upper surface of the extraction supporting plate (401) is fixedly connected with first limit seats (415) which are in one-to-one correspondence with the extraction pipes (403), the upper surface of the extraction supporting plate (401) is slidably provided with second limit seats (416) which are in one-to-one correspondence with the first limit seats (415), and the second limit seats (416) are connected with the first limit seats (415) through bolts;

Lifting chute (406) are connected gradually by a plurality of first horizontal grooves, rise groove, second horizontal groove and decline groove and constitute, the workstation lower surface rotates and is connected with extraction drive dish, fixed connection between extraction drive dish and the extraction regulation and control piece (402), extraction drive dish week side fixedly connected with a plurality of arc drive racks (417), workstation lower surface rotate be connected with arc drive rack (417) matched with regulating gear (418), regulating gear (418) lower surface fixedly connected with fourth drive wheel (419), be connected through the second drive belt between fourth drive wheel (419) and the second drive wheel (107).