CN217156014U - A kind of pretreatment equipment for pesticide residue detection - Google Patents

Abstract

The utility model discloses a pre-processing device for pesticide residue detection, which relates to the technical field of pesticide residue detection. , the first drive device is fixedly arranged on the workbench, the output part of the first drive device is fixedly connected with the vibration seat and can drive the vibration seat to perform reciprocating vibration motion, and the vibration seat is provided with at least one first groove for placing the test tube , the fixed cover plate can press the test tubes located in each first groove to make it fixed, the clamping device can clamp the test tubes in each first groove and move it into the switch cover device, and the switch cover device can clamp The body of the test tube and the cover body of the test tube held by the holding device move relative to each other, and the cover body of the test tube is released from the body of the test tube. The oscillating device oscillates the test tube, and the clamping device clamps and places it on the opening and closing lid device to open the lid, which saves time and effort in the pretreatment operation and improves work efficiency.

Description

A kind of pretreatment equipment for pesticide residue detection

technical field

The utility model relates to the technical field of pesticide residue detection, in particular to a pretreatment device for pesticide residue detection.

Background technique

At present, pesticides are widely used all over the world due to their high efficiency, rapidity, economy and simplicity in controlling crop diseases, insects, weeds and rodents. However, with the continuous improvement of people's living standards, people pay more and more attention to the safety of agricultural products. Pesticide residues will pose a great threat to food safety, so it is necessary to carry out pesticide residue testing on agricultural products. The complete pesticide sample analysis and detection process includes sample collection, sample pretreatment, analysis and determination, data processing and reporting results. In the detection of pesticide residues, sample pretreatment is a very important step. The process of quantitatively transferring the measured components into solution for analytical determination. The quality of sample pretreatment not only directly affects the final analysis result, but also affects the service life of the analytical instrument. At present, my country still adopts traditional pretreatment methods, mainly including vibration extraction, liquid-liquid distribution, Soxhlet extraction, centrifugation, and column chromatography. These traditional methods are mainly processed manually, and their operations are cumbersome, time-consuming and labor-intensive, and work efficiency is low. They can no longer meet the needs of safe, rapid, and high-throughput detection in the fields of agricultural production, circulation, and import and export in my country at this stage.

Utility model content

The purpose of the utility model is to provide a pre-treatment equipment for pesticide residue detection, so as to solve the problems existing in the above-mentioned prior art, and to make the pre-treatment equipment simple in structure, time-saving and labor-saving in the pre-treatment, and high in work efficiency.

For achieving the above object, the utility model provides the following scheme:

The utility model provides a pre-treatment equipment for pesticide residue detection, which comprises a box body, an oscillation device, a clamping device and a switch cover device. The opening and closing cover devices are all arranged on the worktable, the oscillation device includes a vibration seat, a fixed cover plate and a first driving device, the first driving device is fixedly arranged on the worktable, and the first driving device The output part of the device is fixedly connected with the vibration seat, and the first driving device can drive the vibration seat to perform a reciprocating vibration motion. At least one first groove for placing a test tube is opened on the vibration seat. One end of the fixed cover plate is rotatably arranged on the vibration seat, and the other end of the fixed cover plate can press the test tube located in each of the first grooves to be fixed in each of the first grooves, so The clamping device can clamp the test tube in each of the first grooves and move the test tube into the opening and closing cover device, and the opening and closing cover device can clamp the tube body of the test tube and the tube body clamped by the clamping device. The test tube cover body performs relative movement and disengages the test tube cover body from the test tube body.

Preferably, a pipetting device is further provided on the workbench, and the pipetting device can absorb reagents and add them into the test tube tube in the switch cover device or absorb the reagents in the test tube tube on the switch cover device. liquid and transfer it to the pesticide residue analysis device.

Preferably, the workbench is also provided with a test tube storage area, the test tube storage area is provided with at least one second groove for storing test tubes, and the clamping device can clamp the second grooves located in each of the second grooves. inside the test tubes and place them in the first grooves.

Preferably, a centrifuge device is further provided on the workbench, and at least one third groove for placing test tubes is provided on the centrifuge device, and the centrifuge device can rotate around the first axis and drive each of the third The rotation of the test tube in the groove makes the test tube in each of the third grooves perform centrifugal motion, and the clamping device can clamp the test tube located in each of the second grooves and place it in each of the third grooves. and the clamping device can clamp the test tube located in each of the third grooves and place it in each of the first grooves.

Preferably, the clamping device includes a first moving component for moving and a first clamping component for holding a test tube, the first moving component is arranged on the worktable, and the first clamping component The assembly is arranged on the first moving assembly, and the first moving assembly can drive the first clamping assembly to move and put the test tube clamped by the first clamping assembly into each of the first grooves .

Preferably, the pipetting device includes a second moving component for moving and a first suction component for sucking and releasing reagents, the second moving component is arranged on the worktable, the first suction component is The liquid component is arranged on the second moving component, the first liquid suction component is plugged with a liquid suction tube, and the second moving component can drive the first liquid suction component to move to the top of the switch cover device , the first liquid suction assembly can add the reagent sucked by the pipette into the test tube body in the switch cover device or absorb the liquid in the test tube tube on the switch cover device and transfer it to pesticide residues Analytical measurement equipment.

Preferably, the opening and closing cover device includes a second clamping component and a rotating component capable of clamping or releasing the test tube, the second clamping component is disposed on the rotating component, and the rotating component can drive the first clamping component. The two clamping assemblies rotate around the second axis.

Preferably, the workbench is further provided with a reagent storage area, the reagent storage area is provided with at least one fourth groove for placing reagent bottles, and the pipetting device can absorb the inside of each of the fourth grooves. and add it to the test tube on the capped device.

Preferably, a pipette recovery box and a pipette storage area are further provided on the workbench, the top of the pipette recovery box has an opening, and the pipette storage area is provided with at least one pipe for placing suction The fifth groove of the pipe, the second moving assembly can drive the first suction assembly to move and make the suction pipe on the first suction assembly collide with the inner wall of the suction pipe recovery box and make the suction pipe The tube falls off into the suction tube recovery box, and the second moving assembly can drive the first suction assembly without The suction pipe in the fifth groove is inserted into the first suction assembly.

Preferably, the box body is further provided with a controller, and the controller is connected in communication with the oscillating device, the clamping device and the opening and closing cover device.

The utility model has achieved the following technical effects with respect to the prior art:

In the pre-treatment equipment for pesticide residue detection provided by the utility model, the test tube containing the sample and the pesticide extraction reagent is oscillated by arranging the oscillating device. For the opening operation, the operator only needs to place the test tube containing the sample and pesticide extraction reagent on the oscillating device, which reduces the manual operation time, saves time and labor in the pretreatment operation, and improves the work efficiency, and the oscillating device is only equipped with a vibration seat. The oscillating operation can be realized with a fixed cover plate and a driving device, and the structure is simple.

Further, the pipetting device set on the workbench makes the function of the equipment more complete. When the pesticide residues are easily dissolved and detected, the pipetting device can directly absorb the liquid in the test tube on the switch cover device and transfer it to the pesticide analysis and determination. Pesticide detection is carried out in the equipment. For difficult-to-detect pesticide residues, reagents can be added to the test tube body on the switch cover device through the pipetting device, and then moved to the shaking device through the clamping device for purification to promote the dissolution of pesticides. In the solvent, therefore, the set pipetting device makes the device suitable for pretreatment in different situations.

Further, the test tube storage area provided on the workbench can store test tubes, and the operator can place the test tubes to be processed at this position, and the clamping device can clamp the test tubes in this position and clamp them to the oscillating device. , so that the pretreatment operation is simple, and the test tube storage area can store multiple test tubes at a time, making it more efficient.

Further, the centrifugal device set on the workbench can perform centrifugal motion on multiple test tubes at a time, so that the processing efficiency is high, and the settings of the centrifugal device and the oscillating device can be applied to different treatment methods of pesticide residues, which can be selected according to actual needs. Centrifugal device centrifugation or selection of shaking device for shaking treatment or a combination of the two.

Further, the clamping device adopts a first moving component and a first clamping component, the first moving component drives the first clamping component to move in position, the first clamping component is used for clamping each test tube, and the structure is simple.

Further, the pipetting device is composed of a second moving assembly and a first suction assembly, the second moving assembly drives the first suction assembly to move in position, and the suction tube on the first suction assembly is used to absorb the sample liquid in the test tube. It is transported to pesticide residue analysis and determination equipment for pesticide detection, or for pesticide samples that are difficult to dissolve and detect, and then add liquid and oscillate for purification, so that the pretreatment process does not require manual intervention, reduces the labor intensity of operators, and improves work efficiency.

Further, the opening and closing cover device is composed of a second clamping component and a rotating component, the test tube body clamped by the clamping device is clamped by the second clamping component, the clamping device clamps the test tube cover body, and then the test tube body is clamped by the clamping device. Through the rotation of the rotating assembly, the test tube cover body and the test tube body are rotated relative to each other, so that the test tube cover body and the test tube body are separated, and the opening and closing method of the cover body is simple and easy to realize.

Further, there is a reagent storage area on the workbench, which can store a variety of different reagents, and then suck them through the pipetting device and add them to the test tube on the switch cover device, so that it can be applied to the reagents for dissolving different pesticides. Add to.

Further, a pipette storage area and a pipette recovery box are provided on the workbench, and each pipette can be used and recycled for a single use, which can prevent cross-contamination between different reagents and ensure experimental processing. accuracy, and efficient collection of the pipette used.

Further, a controller is arranged on the box body to intelligently control the oscillating device, the clamping device and the opening and closing device, so as to automate the equipment, reduce the labor intensity of the operator, and improve the efficiency of pesticide detection and pretreatment.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the front view of the pesticide detection pretreatment equipment provided by the utility model;

Fig. 2 is the top view of the pesticide detection pretreatment equipment provided by the utility model;

Fig. 3 is the front view of the centrifugal device in the pesticide detection pretreatment equipment provided by the utility model;

Fig. 4 is the top view of the centrifugal device in the pesticide detection pretreatment equipment provided by the utility model;

Fig. 5 is the front view of the oscillating device in the pesticide detection pretreatment equipment provided by the utility model;

Fig. 6 is the side view of the oscillation device in the pesticide detection pretreatment equipment provided by the utility model;

7 is a schematic structural diagram of a cover opening and closing device in the pesticide detection pretreatment equipment provided by the utility model;

Fig. 8 is the top view of the switch cover device in the pesticide detection pretreatment equipment provided by the utility model;

9 is a schematic structural diagram of a clamping device in the pesticide detection pretreatment equipment provided by the utility model;

10 is a schematic structural diagram of a pipetting device in the pesticide detection pretreatment equipment provided by the present invention.

In the figure: 100-pretreatment equipment for pesticide residue detection; 1-box body; 2-oscillation device; 21-vibration seat; 211-first groove; 22-fixed cover plate; 23-rotating shaft; 3-clamping device ; 31- the first moving assembly; 32- the first clamping assembly; 4- opening and closing the cover device; 41- the second clamping assembly; The first pipetting assembly; 53-pipette; 6-test tube storage area; 61-second groove; 7-centrifugation device; 71-third groove; 72-connecting shaft; 73-centrifugation turntable; 8-reagent Storage area; 81- fourth groove; 91- pipette recovery box; 92- pipette storage area; 93- fifth groove; 10- LCD touch screen.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The purpose of the utility model is to provide a pre-processing equipment for pesticide residue detection to solve the problems existing in the prior art, so that the pre-processing equipment has a simple structure, saves time and labor for the pre-processing, and has high work efficiency.

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example 1

This embodiment provides a pre-processing device 100 for pesticide residue detection, as shown in FIG. 1 and FIG. 2 , including a box body 1 , an oscillation device 2 , a clamping device 3 and a switch cover device 4 , and a workbench is arranged on the box body 1 , the oscillating device 2, the clamping device 3 and the opening and closing cover device 4 are all arranged on the workbench, and the oscillating device 2 includes a vibration base 21, a fixed cover plate 22 and a first drive device, and the first drive device is fixedly arranged on the workbench, The output part of the first driving device is fixedly connected with the vibration seat 21 and the first driving device can drive the vibration seat 21 to perform a reciprocating vibration motion. Specifically, the first driving device drives the vibration seat 21 to perform an eccentric reciprocating vibration motion. There is at least one first groove 211 for placing test tubes, one end of the fixed cover plate 22 is rotatably arranged on the vibration base 21, and the other end of the fixed cover plate 22 can press against the test tubes located in each first groove 211 to make it Fixed in each first groove 211, the clamping device 3 can clamp the test tube in each first groove 211 and move the test tube into the opening and closing cover device 4, and the opening and closing cover device 4 can clamp the tube body and the clamp of the test tube. The test tube cover held by the holding device 3 moves relatively and makes the test tube cover disengage from the test tube body. The test tube containing the sample and pesticide extraction reagent is oscillated by setting the oscillating device 2. After the oscillating operation is completed, the clamping device 3 clamps it to prevent it from being automatically opened on the opening and closing cover device 4. The operator only needs to The test tube containing the sample and the pesticide extraction reagent can be placed on the shaking device 2, which reduces the manual operation time, saves time and labor in the pretreatment operation, and improves the work efficiency. The driving device can realize the oscillating operation, and the structure is simple.

Specifically, two sides of the vibration base 21 are provided with eccentric rotating shafts 23, and the output shaft of the first driving device is drive-connected or directly fixedly connected with the rotating shaft 23 on one side, and the first driving device can use a rotary stepping motor, and The number of the first grooves 211 can be set to 3 or 6, and the specific number can be reasonably set according to experimental needs.

In the optional solution of this embodiment, preferably, as shown in FIG. 2 , a pipetting device 5 is also provided on the workbench. Specifically, the pipetting device 5 and the clamping device 3 can be respectively set on the workbench to face each other. On both sides, the pipetting device 5 can absorb the reagent and add it into the test tube body in the switch cover device 4 or absorb the liquid in the test tube tube on the switch cover device 4 and transfer it to the pesticide residue analysis and determination equipment. The pipetting device 5 set on the workbench makes the equipment function more perfect. When the pesticide residues are easily dissolved and detected, the pipetting device 5 can directly absorb the liquid in the test tube on the switch cover device 4 and transfer it to the pesticide analysis and determination. Pesticide detection is carried out in the equipment. For difficult-to-detect pesticide residues, the pipetting device 5 can be used to add reagents to the test tube body on the switch cover device 4, and then move to the shaking device 2 through the clamping device 3 for purification. To promote the dissolution of the pesticide in the solvent, the pipetting device 5 is installed so that the equipment is suitable for pretreatment in different situations.

In the optional solution of this embodiment, preferably, as shown in FIG. 2 , a test tube storage area 6 is also provided on the workbench, and the test tube storage area 6 is provided with at least one second groove 61 for storing test tubes. Yes, the second grooves 61 are arranged at even intervals, and the clamping device 3 can clamp the test tubes located in the second grooves 61 and place them in the first grooves 211 . The test tube storage area 6 provided on the workbench can store test tubes, and the operator can place the test tubes to be processed at this position, and the clamping device 3 can clamp the test tubes in this position and clamp them to the oscillating device 2. , so that the pretreatment operation is simple, and the test tube storage area 6 can store multiple test tubes at a time, so that the work efficiency is higher.

In the optional solution of this embodiment, it is more preferable, as shown in FIG. 2 , that a centrifugal device 7 is also provided on the workbench, and the centrifugal device 7 is provided with at least one third groove 71 for placing test tubes. 7 can rotate around the first axis and drive the test tubes in the third grooves 71 to rotate, so that the test tubes in the third grooves 71 can perform centrifugal motion, and the clamping device 3 can clamp the test tubes located in the second grooves 61. And it is placed in each of the third grooves 71 , and the clamping device 3 can clamp the test tube located in each of the third grooves 71 and place it in each of the first grooves 211 . The centrifugal device 7 installed on the workbench can perform centrifugal motion on multiple test tubes at a time, so that the processing efficiency is high, and the settings of the centrifugal device 7 and the shaking device 2 can be applied to different treatment methods of pesticide residues, which can be selected according to actual needs. Centrifugation device 7 is used for centrifugation, or vibration device 2 is selected for vibration treatment, or the two are combined for co-processing.

Specifically, the centrifugal device 7 includes a rotating stepper motor, a connecting shaft 72 and a centrifugal turntable 73. The centrifugal turntable 73 is set in a funnel shape, and six third grooves 71 are formed on the side wall of the centrifugal turntable 73. The shaft is fixedly connected with the connecting shaft 72, and the centrifugal turntable 73 is inclined so that the axis of a third groove 71 on the centrifugal turntable 73 is in a vertical state, which is convenient for the clamping device 3 to clamp the test tube into the third groove 71. or clamp the test tube in the third groove 71, and the third groove 71 can be an open through hole, and the outer diameter of the test tube cover is larger than the size of the through hole, and the outer diameter of the test tube body is smaller than or equal to the size of the through hole, so as to facilitate the placement and taking out of the test tube in the through hole, and the centrifuge device 7 can also be provided with a pressing device, which is used to abut each test tube placed in the third groove 71. Fix, and place it out of each third groove 71 .

In the optional solution of this embodiment, preferably, as shown in FIG. 9 , the holding device 3 includes a first moving component 31 for moving and a first holding component 32 for holding a test tube. The first moving The assembly 31 is arranged on the workbench, the first clamping assembly 32 is arranged on the first moving assembly 31, and the first moving assembly 31 can drive the first clamping assembly 32 to move and make the test tube clamped by the first clamping assembly 32 put into place. into each of the first grooves 211 . The clamping device 3 is formed by a first moving component 31 and a first clamping component 32. The first moving component 31 drives the first clamping component 32 to move in position. The first clamping component 32 is used to clamp each test tube. Simple structure.

Specifically, the first moving assembly 31 includes a first transverse guide rail, a first longitudinal guide rail and a first vertical guide rail, the first transverse guide rail is fixedly arranged on the box body 1, the first transverse guide rail, the first longitudinal Guide grooves are set on the guide rails. The guide groove of the first horizontal guide rail is provided with a first screw rod and a linear stepping motor. The output shaft of the linear stepping motor is fixedly connected with the first screw rod, and one end of the first longitudinal guide rail is slidably arranged. In the guide groove of the first transverse guide rail, and the end of the first longitudinal guide rail is provided with a threaded hole, and the threaded hole is threadedly connected with the first screw rod. Similarly, the connection structure of the first vertical guide rail and the first longitudinal guide rail is the same as that of the first vertical guide rail. The connection structure of the first vertical guide rail and the first horizontal guide rail is the same, that is, one end of the first vertical guide rail is slidably arranged in the guide rail groove of the first vertical guide rail, and a linear stepping motor is arranged in the guide rail groove of the first vertical guide rail. and the second screw rod, the output shaft of the linear stepping motor is fixedly connected with the second screw rod, one end of the first vertical guide rail is threadedly connected with the second screw rod, and the first longitudinal guide rail can move along the X direction on the first lateral guide rail Moving, the first vertical guide rail can move along the Y direction on the first vertical guide rail, the first clamping assembly 32 can move along the Z direction on the first vertical guide rail, and the X direction, the Y direction and the Z direction are respectively vertical. The first clamping assembly 32 includes a moving plate, a first clamping block and a second clamping block. One end of the moving plate is slidably arranged in the guide rail groove of the first vertical guide rail, and is arranged in the guide rail groove of the first vertical guide rail. There is a linear stepping motor and a third screw rod, the output shaft of the linear stepping motor is fixedly connected with the third screw rod, one end of the moving plate is threadedly connected with the third screw rod, one side of the first clamping block and the second clamping block are One side of the block is set in a semi-circular shape that can fit with the outer wall of the test tube, and there are two linear stepping motors on the moving plate, each linear stepping motor is used to drive the first clamping block or the second clamping block respectively. The relative movement can be used to clamp or release the test tube.

In the optional solution of this embodiment, preferably, as shown in FIG. 10 , the pipetting device 5 includes a second moving component 51 for moving and a first sucking component 52 for sucking and releasing reagents. The moving assembly 51 is arranged on the workbench, the first suction assembly 52 is arranged on the second moving assembly 51, the first suction assembly 52 is plugged with a suction tube 53, and the second moving assembly 51 can drive the first suction The assembly 52 moves to the top of the switch cover device 4, and the first liquid suction assembly 52 can add the reagent sucked by the pipette 53 into the test tube body in the switch cover device 4 or absorb the liquid in the test tube tube on the switch cover device 4 and put it into the test tube body. It is transferred to the pesticide residue analysis and determination equipment. The pipetting device 5 is composed of a second moving assembly 51 and a first suction assembly 52, the second moving assembly 51 drives the first suction assembly 52 to move in position, and the suction tube 53 on the first suction assembly 52 is used for suction The sample liquid in the test tube is sent to the pesticide residue analysis and determination equipment for pesticide detection, or for the pesticide samples that are difficult to dissolve and detect, the sample liquid is added and shaken to purify, so that the pretreatment process does not require manual intervention, reduces the labor intensity of the operator, and improves the work efficiency.

Specifically, the structure of the second moving assembly 51 is the same as that of the first moving assembly 31 . The first liquid suction assembly 52 includes a suction head and a suction device. The suction device is communicated with the suction head, and the suction head is connected to the second moving assembly 51 . The suction head is connected with a suction pipe 53 , and the suction device can complete the suction or blowing action to realize the suction and release of the suction pipe 53 .

In the optional solution of this embodiment, preferably, as shown in FIG. 7 and FIG. 8 , the opening and closing cover device 4 includes a second clamping component 41 and a rotating component 42 capable of clamping or releasing the test tube. The assembly 41 is disposed on the rotating assembly 42, and the rotating assembly 42 can drive the second clamping assembly 41 to rotate around the second axis. The switch cover device 4 is composed of a second clamping component 41 and a rotating component 42. The second clamping component 41 clamps the test tube body held by the clamping device 3, and the clamping device 3 clamps the test tube cover. Hold, and then through the rotation of the rotating assembly 42, the test tube cover and the test tube body are rotated relative to each other, so that the test tube cover and the test tube body are separated, and the opening and closing method of the cover is simple and easy to realize.

Specifically, the rotating assembly 42 includes a rotating plate and a rotating stepping motor, the output shaft of the rotating stepping motor is fixedly connected to the rotating plate, and a second clamping assembly 41 is provided on the rotating plate, and the second clamping assembly 41 includes a third clamp The holding block and the fourth holding block, one side of the third holding block and one side of the fourth holding block are set in a semicircular shape that can fit with the outer wall of the test tube, and there are two linear steps on the rotating plate A motor, each linear stepping motor is respectively used to drive the third clamping block or the fourth clamping block to perform relative movement to clamp or loosen the test tube.

In the optional solution of this embodiment, preferably, as shown in FIG. 2 , a reagent storage area 8 is further provided on the workbench, and the reagent storage area 8 is provided with at least one fourth groove 81 for placing reagent bottles, Specifically, the number of the fourth grooves 81 can be set to multiple, and the set number can be adjusted according to the quantity of reagents used in the experiment. The pipetting device 5 can absorb the reagents in each fourth groove 81 and put them Add to the test tube on the capping device 4. There is a reagent storage area 8 on the workbench, which can store a variety of different reagents, which are then sucked by the pipetting device 5 and added to the test tube on the switch cover device 4, so that it can be applied to the reagents for dissolving different pesticides. Add to.

In the optional solution of this embodiment, preferably, as shown in FIG. 2 , the workbench is further provided with a pipette recovery box 91 and a pipette storage area 92. The top of the pipette recovery box 91 has an opening, and the suction pipe The liquid tube storage area 92 is provided with at least one fifth groove 93 for placing the liquid pipette 53. Specifically, the number of the fifth grooves 93 is set to be multiple to meet the needs of equipment experiments and reduce the need for operators to add suction liquid. The frequency of the pipe 53 reduces its labor, the second moving assembly 51 can drive the first suction assembly 52 to move and cause the suction pipe 53 on the first suction assembly 52 to collide with the inner wall of the suction pipe recovery box 91 and make the suction pipe 53. The tube 53 falls off into the suction tube recovery box 91, and the second moving assembly 51 can drive the first suction assembly 52 without the suction tube 53 to move to the top of each fifth groove 93 and move downward to make each fifth suction tube 53 move downward. The suction tube 53 in the groove 93 is inserted into the first suction assembly 52 . The workbench is provided with a pipette storage area 92 and a pipette recovery box 91. Each use of the pipette 53 can be used and recycled for a single time, which can prevent cross-contamination between different reagents and ensure experimental processing. accuracy, and efficient collection of the pipette 53 used.

In the optional solution of this embodiment, preferably, the box body 1 is further provided with a controller, and the controller is connected in communication with the oscillating device 2 , the clamping device 3 and the opening and closing cover device 4 . A controller is provided on the box body 1 to intelligently control the oscillating device 2, the clamping device 3 and the opening and closing cover device 4, so as to automate the equipment, reduce the labor intensity of the operator, and improve the efficiency of pesticide detection and pretreatment.

Specifically, the controller can control the oscillating device 2 , the clamping device 3 , the opening and closing device 4 , the centrifuge device 7 and the pipetting device 5 , and the box body 1 is also provided with a liquid crystal touch screen 10 that communicates with the controller, so that the operator can The intelligent selection procedure of the equipment is realized through the liquid crystal touch screen 10 .

The specific process is as follows: the operator places all the test tubes with the samples in the test tube storage area 6, then selects the test tubes in the test tube storage area 6 to be tested through the LCD touch screen 10, and then selects the reagents that need to be added for pretreatment, and then according to Depending on the pesticides to be detected, choose whether to use the centrifugal device 7 for centrifugation operation or the vibration device 2 for the vibration operation or both. After the setting is completed, the clamping device 3 will clamp the test tube containing the sample and move it to the switch. Lid device 4, open the cover of the test tube, pipetting device 5 to add reagents, then the clamping device 3 cooperates with the switch cover device 4 to cover the test tube cover, and then the clamping device 3 is moved and placed on the centrifuge device 7 or the shaking device. Perform centrifugation or oscillating motion in step 2. After completion, the clamping device 3 clamps the test tube on the centrifugal device 7 or the oscillating device 2 and places it on the opening and closing cover device 4, and cooperates with the opening and closing cover device 4 to open its cover and pipette the liquid. The device 5 moves the position and sucks the liquid in the test tube on the switch cover device 4 and transfers it to the pesticide residue analysis and measurement device.

For some difficult-to-detect pesticide residues, further purification treatment can be performed: after the above steps, the pipetting device 5 is moved to one side first, and the clamping device 3 cooperates with the switch cover device 4 to close the test tube cover on the switch cover device 4 , the holding device 3 clamps the test tube on the switch cover device 4 and places it in the test tube storage area 6, and then the holding device 3 clamps the empty test tube and moves it to the switch cover device 4, and cooperates with the switch cover device 4 to cover the test tube. The body is opened, and then the pipetting device 5 adds the sample liquid from the previous test tube to the empty test tube, and then the pipetting device 5 replaces the pipette 53 and absorbs the reagent corresponding to the reagent storage area 8 to add the switch cover device 4. Reagent, the clamping device 3 cooperates with the opening and closing cover device 4 to cover the cover body of the test tube with the tube body, and the clamping device 3 moves the test tube to the centrifugal device 7 or the shaking device 2 for further centrifugation or shaking. After the treatment is completed, the clamping device 3 clamps the treated test tube to the switch cover device 4, and cooperates with the switch cover device 4 to open the test tube cover. Residual analysis and determination equipment.

The principles and implementations of the present utility model are described with specific examples in the present utility model, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art , according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (10)

1. The utility model provides a incomplete detection pretreatment equipment of farming which characterized in that: the test tube test box comprises a box body, an oscillating device, a clamping device and a switch cover device, wherein the box body is provided with a workbench, the oscillating device, the clamping device and the switch cover device are all arranged on the workbench, the oscillating device comprises an oscillating seat, a fixed cover plate and a first driving device, the first driving device is fixedly arranged on the workbench, an output part of the first driving device is fixedly connected with the oscillating seat, the first driving device can drive the oscillating seat to do reciprocating vibration motion, the oscillating seat is provided with at least one first groove for placing a test tube, one end of the fixed cover plate is rotatably arranged on the oscillating seat, the other end of the fixed cover plate can press the test tube in each first groove to fix the test tube in each first groove, the clamping device can clamp each test tube in the first groove and move the test tube into the switch cover device, the body that switch lid device can the centre gripping test tube with the relative motion is done to the test tube lid of clamping device centre gripping and makes the test tube lid throw off from the test tube body.

2. The pesticide residue detection pretreatment device according to claim 1, characterized in that: the liquid transferring device is arranged on the workbench and can absorb reagents and add the reagents into the test tube bodies in the switch cover device or absorb liquid in the test tube bodies on the switch cover device and transfer the liquid into the pesticide residue analysis and determination equipment.

3. The pesticide residue detection pretreatment device according to claim 1, characterized in that: still be provided with the test tube on the workstation and deposit the district, the test tube is deposited the district and is provided with at least one second recess that is used for depositing the test tube, clamping device can the centre gripping be located each the test tube in the second recess and place each with it in the first recess.

4. The pesticide residue detection pretreatment device according to claim 3, characterized in that: the test tube placing device comprises a workbench, and is characterized in that a centrifugal device is further arranged on the workbench, at least one third groove used for placing test tubes is formed in the centrifugal device, the centrifugal device can rotate around a first axis and drive the test tubes in the third grooves to rotate so that the test tubes in the third grooves can move centrifugally, a clamping device can clamp the test tubes in the second grooves and place the test tubes in the third grooves, and the clamping device can clamp the test tubes in the third grooves and place the test tubes in the first grooves.

5. The pesticide residue detection pretreatment device according to claim 1, characterized in that: clamping device is including the first centre gripping subassembly that is used for the first removal subassembly that removes and is used for the centre gripping test tube, first removal subassembly sets up on the workstation, first centre gripping subassembly sets up on the first removal subassembly just first removal subassembly can drive first centre gripping subassembly removes and makes the test tube of first centre gripping subassembly centre gripping is put into respectively in the first recess.

6. The pesticide residue detection pretreatment device according to claim 2, characterized in that: the liquid transfer device comprises a second moving assembly and a first liquid suction assembly, the second moving assembly is arranged on the workbench, the first liquid suction assembly is arranged on the second moving assembly, a liquid suction pipe is inserted into the first liquid suction assembly, the second moving assembly can drive the first liquid suction assembly to move to the position above the switch cover device, and the first liquid suction assembly can add the reagent sucked by the liquid suction pipe into the test tube body in the switch cover device or suck the liquid in the test tube body on the switch cover device and transfer the liquid into the pesticide residue analysis and determination equipment.

7. The pesticide residue detection pretreatment device according to claim 1, characterized in that: the switch cover device comprises a second clamping assembly and a rotating assembly, wherein the second clamping assembly and the rotating assembly can clamp or loosen the test tube, the second clamping assembly is arranged on the rotating assembly, and the rotating assembly can drive the second clamping assembly to rotate around a second axis.

8. The pesticide residue detection pretreatment device according to claim 2, characterized in that: still be provided with reagent on the workstation and deposit the district, reagent is deposited the district and is provided with at least one fourth recess that is used for placing the reagent bottle, move liquid device can absorb each reagent in the fourth recess and add it to in the test tube on the switch cover device.

9. The pesticide residue detection pretreatment device according to claim 6, characterized in that: the liquid suction pipe comprises a workbench, and is characterized in that a liquid suction pipe recovery box and a liquid suction pipe storage area are further arranged on the workbench, an opening is formed in the top of the liquid suction pipe recovery box, at least one fifth groove for placing a liquid suction pipe is formed in the liquid suction pipe storage area, the second moving assembly can drive the first liquid suction assembly to move, make the liquid suction pipe on the first liquid suction assembly collide with the inner wall of the liquid suction pipe recovery box and make the liquid suction pipe fall off into the liquid suction pipe recovery box, and the second moving assembly can drive the first liquid suction assembly without the liquid suction pipe to move to the position above each fifth groove and move downwards to enable the liquid suction pipe in each fifth groove to be inserted into the first liquid suction assembly.

10. The pesticide residue detection pretreatment device according to claim 1, characterized in that: the box body is also provided with a controller, and the controller is in communication connection with the oscillating device, the clamping device and the switch cover device.

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