Agricultural and veterinary drug residue detection purification filter device

Abstract

The utility model provides a kind of agricultural, veterinary drug residue detection purification filtration device, it is related to purification filtration technical field, the purification filtration device includes: box;First board, second board and third board, first board, second board and third board are sequentially arranged from lower to upper in the inside of box, first board is provided with a plurality of first holes, second board is provided with a plurality of second holes, the both ends of first board are respectively detachably connected in the both sides of box, the both ends of second board are respectively detachably connected in the both sides of box;Multiple syringes, the needle cylinder bottom end and needle cylinder top end of each syringe are respectively abutted on the top surface of first board and the bottom surface of second board, the injection end and piston rod of each syringe are respectively penetrated one first hole and one second hole, third board is detachably connected with the top end of the piston rod of multiple syringes;To achieve that agricultural products, aquatic products are simple in purification filtration step before sampling and accurate control, reduce the work intensity and stress for experimental personnel, further improve detection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of purification and filtration technology, and more specifically, relates to a purification and filtration device for detecting pesticide and veterinary drug residues. Background Technology

[0002] Currently, the process for analyzing pesticide and veterinary drug residues in agricultural and aquatic products is complex. The purification and filtration step is a pre-processing step before the sample is loaded onto the instrument. Its purpose is to reduce interference from detection impurities and contamination of precision instruments, and to further filter impurities larger than 0.45μm. However, when the sample volume is large, purification and filtration are usually done manually, which is time-consuming and labor-intensive. In addition, the small diameter of the liner tube in the sample bottle can lead to a large number of air bubbles due to the lack of air discharge, making it impossible to collect the sample.

[0003] Before the samples are loaded onto the instrument, they need to be manually purified using a syringe and filter. This process is very time-consuming when there are many samples, and some samples with larger impurities require a lot of force to push the syringe, which is very strenuous. Since the samples are concentrated before purification, about 1 ml, a liner is used to ensure that the injection needle in the testing instrument can draw up as much sample as possible from the sample vial. However, because the inner diameter of the liner is small and can only hold about 0.5 ml of sample solution, air bubbles often appear during the sample injection process because the air is not expelled in time. This makes it difficult for the liner to receive the sample smoothly, and sometimes the sample may not even enter the liner. This cannot meet the high-throughput testing needs of front-line testing staff. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a purification and filtration device for detecting pesticide and veterinary drug residues. This solves the problems mentioned in the background art, such as the need for manual sample purification before loading the sample, which is very time-consuming when there are many samples, and the need to push the syringe with a large force for samples with large impurities, which is very labor-intensive. Furthermore, air bubbles in the liner can prevent the sample from entering the liner.

[0005] To achieve the above objectives, this utility model provides a purification and filtration device for detecting pesticide and veterinary drug residues, the purification and filtration device comprising: Box; A first plate, a second plate, and a third plate are arranged sequentially from bottom to top inside the housing. The first plate has multiple first holes, and the second plate has multiple second holes. The two ends of the first plate are detachably connected to the two sides of the housing, and the two ends of the second plate are detachably connected to the two sides of the housing. Multiple syringes, the bottom end and top end of the syringe barrel of each syringe respectively abut against the top surface of the first plate and the bottom surface of the second plate, the injection end and piston rod of each syringe respectively pass through a first hole and a second hole, and the third plate is detachably connected to the top end of the piston rod of the multiple syringes; A lifting mechanism is provided above the third plate, and the lifting end of the lifting mechanism is connected to the third plate. Multiple filter heads, the tips of which are detachably connected to the injection ends of multiple syringes; Multiple needles, each of which is detachably connected to the bottom end of a plurality of filter heads; Multiple sample vials are placed at the bottom of the box, and multiple needles are inserted into the liner of each sample vial.

[0006] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes two first blocks, each of which is elongated and connected to both sides of the housing. The opposing surfaces of the two first blocks are provided with first recesses, and the two ends of the first plate are slidably connected to the two first recesses.

[0007] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes two second blocks, which are elongated and connected to both sides of the housing. The opposing surfaces of the two second blocks are provided with second recesses, and the two ends of the second plate are slidably connected to the two second recesses.

[0008] Preferably, the pesticide and veterinary drug residue detection, purification, and filtration device further includes: Two slide rails are respectively connected to both sides of the housing; Two sliders are connected to both ends of the third plate, and the two sliders are slidably connected to the two slide rails.

[0009] Preferably, the bottom of the box is provided with multiple positioning slots, and the multiple sample bottles are respectively placed in the multiple positioning slots.

[0010] Preferably, the pesticide and veterinary drug residue detection, purification and filtration device further includes multiple positioning cylinders, which are connected to the top surface of the first plate. Each positioning cylinder communicates with a first hole, and the bottom end of the syringe barrel is inserted into a positioning cylinder.

[0011] Preferably, the pesticide and veterinary drug residue detection, purification and filtration device further includes multiple positioning sleeves, which are respectively fitted inside multiple positioning cylinders, and the positioning sleeves are used to fit against the syringe barrel wall.

[0012] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes at least one locking strip, the bottom of each locking strip being connected to the top of the piston rod of at least two syringes, and the locking strip being snapped into the third plate.

[0013] Preferably, the bottom surface of the third plate is provided with at least one slot, and each of the card strips can be inserted into one of the slots.

[0014] Preferably, both the card slot and the card strip are T-shaped.

[0015] This utility model provides a purification and filtration device for detecting pesticide and veterinary drug residues. Its advantages are as follows: the first plate of the purification and filtration device has two ends detachably connected to both sides of the housing, the second plate has two ends detachably connected to both sides of the housing, and the lifting end of the lifting mechanism is connected to the third plate. During implementation, the third plate is first connected to the top of the syringe piston rod. The bottom and top of the syringe barrel abut against the top surface of the first plate and the bottom surface of the second plate, respectively. Each syringe's injection end and piston rod pass through a first hole and a second hole, respectively. Then, the filter head is detachably connected to the syringe injection end, and the needle is detachably connected to the bottom of the filter head. Unpurified samples are added to the syringe barrel. Finally, the sample vial is placed at the bottom of the housing, and the needle is inserted into the liner of the corresponding sample vial. At this point, the syringe piston rod can be inserted into the syringe barrel.

[0016] When adjusting the lifting mechanism to raise or lower the height, external pressure can be slowly applied to the third plate to inject sample liquid into the liner of the sample bottle. Compared with manual purification, this saves time and effort and allows for the simultaneous purification and filtration of multiple samples. Furthermore, the addition of a needle to the filter head, which extends into the liner of the sample bottle, prevents air from forming bubbles and causing sudden leakage of sample liquid. This simplifies and precisely controls the purification and filtration process for agricultural and aquatic products before sample introduction, reducing the workload and pressure on laboratory personnel and further improving testing efficiency.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0019] Figure 1The diagram shows a front view of the syringe piston rod of an agricultural and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention, when the syringe piston rod is inserted into the syringe barrel.

[0020] Figure 2 The diagram shows a front view of the syringe piston rod of an agricultural and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention, when the syringe piston rod is not inserted into the syringe barrel.

[0021] Figure 3 The diagram shows a top view of the first plate of a pesticide and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention.

[0022] Figure 4 The diagram shows a top view of the second plate of a pesticide and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention.

[0023] Figure 5 The diagram shows a bottom view of the third plate of a pesticide and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention.

[0024] Figure 6 The diagram shows a side view of the card strip structure of a pesticide and veterinary drug residue detection and purification filtration device according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Box body; 2. First plate; 3. Second plate; 4. Third plate; 5. First hole; 6. Second hole; 7. Syringe; 8. Lifting mechanism; 9. Filter head; 10. Needle; 11. Sample bottle; 12. First block; 13. Second block; 14. Slide rail; 15. Slider; 16. Positioning groove; 17. Positioning cylinder; 18. Locking strip; 19. Locking slot. Detailed Implementation

[0026] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] like Figures 1-6 As shown, this utility model provides a purification and filtration device for detecting pesticide and veterinary drug residues. The purification and filtration device includes: Box 1; The first plate 2, the second plate 3, and the third plate 4 are arranged sequentially from bottom to top inside the box 1. The first plate 2 is provided with multiple first holes 5, and the second plate 3 is provided with multiple second holes 6. The two ends of the first plate 2 are detachably connected to the two sides of the box 1, and the two ends of the second plate 3 are detachably connected to the two sides of the box 1. Multiple syringes 7, the bottom end and top end of the syringe barrel of each syringe 7 respectively abut against the top surface of the first plate 2 and the bottom surface of the second plate 3, the injection end and piston rod of each syringe 7 respectively pass through a first hole 5 and a second hole 6, and the third plate 4 is detachably connected to the top end of the piston rod of the multiple syringes 7. Lifting mechanism 8 is located above the third plate 4, and the lifting end of lifting mechanism 8 is connected to the third plate 4. Multiple filter heads 9, the top ends of which are detachably connected to the injection ends of multiple syringes 7; Multiple needles 10 are detachably connected to the bottom end of multiple filter heads 9 respectively; Multiple sample vials 11 are placed at the bottom of the box 1, and multiple needles 10 are inserted into the liner of the multiple sample vials 11.

[0028] To address the current problem of manual sample purification before sample loading, which is time-consuming when dealing with large samples and requires significant force to push the syringe for samples with large impurities, and can also prevent samples from entering the liner due to air bubbles, this application provides a purification and filtration device for pesticide and veterinary drug residue detection. The first plate 2 of this purification and filtration device has two ends detachably connected to both sides of the housing 1, and the second plate 3 has two ends detachably connected to both sides of the housing 1. The lifting end of the lifting mechanism 8 is connected to the third plate 4. During implementation, the third plate 4 can be connected to the syringe 7 first. The piston rod is connected to the top end of the syringe 7. The bottom end and the top end of the syringe 7 abut against the top surface of the first plate 2 and the bottom surface of the second plate 3, respectively. The injection end and the piston rod of each syringe 7 pass through a first hole 5 and a second hole 6, respectively. Then, the filter head 9 is detachably connected to the injection end of the syringe 7, and the needle 10 is detachably connected to the bottom end of the filter head 9. The unpurified sample is added into the syringe of the syringe 7. Finally, the sample bottle 11 is placed at the bottom of the box 1, and the needle 10 is inserted into the liner of the corresponding sample bottle 11. At this time, the piston rod of the syringe 7 can be inserted into the syringe of the syringe 7.

[0029] When the lifting mechanism 8 is adjusted to rise or fall, external pressure can be slowly applied to the third plate 4 to inject sample liquid into the liner of the sample bottle 11. Compared with manual purification, this saves time and effort and allows for the simultaneous purification and filtration of multiple samples. Furthermore, the addition of a needle 10 to the filter head 9, which extends into the liner of the sample bottle 11, prevents air from forming bubbles and causing sudden leakage of sample liquid. This simplifies and precisely controls the purification and filtration process for agricultural and aquatic products before sample introduction, reducing the workload and pressure on laboratory personnel and further improving testing efficiency.

[0030] Preferably, the filter head 9 is plugged into the injection end of the syringe 7, and the needle 10 is plugged into the bottom end of the filter head 9.

[0031] Specifically, the injection end, filter head 9, needle 10, and sample vial are connected by a plug-in method, which allows for easy replacement and prevents contamination between samples.

[0032] Preferably, the syringe piston rod is made of white plastic, the syringe plunger is made of black rubber stopper, and the syringe barrel is made of colorless, semi-transparent PVC plastic with graduations.

[0033] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes two first blocks 12, which are elongated and connected to the two sides of the housing 1 respectively. The opposing surfaces of the two first blocks 12 are provided with first recesses, and the two ends of the first plate 2 are slidably connected to the two first recesses respectively.

[0034] Specifically, the first recess extends to both ends of the first block 12, and both ends of the first plate 2 can be directly slid into the two first recesses to limit the position of the first plate 2.

[0035] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes two second blocks 13, which are elongated and connected to the two sides of the housing 1 respectively. The opposing surfaces of the two second blocks 13 are provided with second recesses, and the two ends of the second plate 3 are slidably connected to the two second recesses respectively.

[0036] Specifically, the second recess extends to both ends of the first block 13, and both ends of the second plate 3 can be directly slid into the two second recesses to limit the position of the second plate 3.

[0037] Preferably, the pesticide and veterinary drug residue detection, purification, and filtration device further includes: Two slide rails 14 are respectively connected to both sides of the housing 1; Two sliders 15 are connected to the two ends of the third plate 4 respectively, and the two sliders 15 are slidably connected to the two slide rails 14 respectively.

[0038] Specifically, the two sliders 15 slide on the two slide rails 14 respectively, which guide the third plate 4 to achieve stable rising and falling.

[0039] Preferably, the bottom of the box body 1 is provided with multiple positioning slots 16, and multiple sample bottles 11 are placed in the multiple positioning slots 11 respectively.

[0040] Specifically, the positioning groove 11 is used to define the position of the sample bottle 11.

[0041] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes multiple positioning cylinders 17, which are connected to the top surface of the first plate 2. Each positioning cylinder 17 is connected to a first hole 5, and the bottom end of the syringe barrel of each syringe 7 is inserted into a positioning cylinder 17.

[0042] Specifically, the positioning cylinder 17 is used to limit the position of the syringe 7 and improve the stability of the syringe 7.

[0043] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes multiple positioning sleeves, which are respectively fitted inside multiple positioning cylinders 17. The positioning sleeves are used to fit against the syringe wall of the syringe 7.

[0044] Specifically, the positioning sleeve is used to further improve the stability of the syringe 7 and also to protect the syringe 7.

[0045] Preferably, the pesticide and veterinary drug residue detection and purification filtration device further includes at least one locking strip 18, the bottom of each locking strip 18 being connected to the top of the piston rod of at least two syringes 7, and the locking strip 18 being snapped into the third plate 4.

[0046] Specifically, the clip 18 is used to connect the piston rods of at least two syringes 7, enabling centralized adjustment of the piston rods of the syringes 7.

[0047] Preferably, the bottom surface of the third plate 4 is provided with at least one slot 19, and each card strip 18 can be inserted into a slot 19.

[0048] Specifically, the card strip 18 is inserted into the card slot 19 to connect the third plate 4 with the card strip 18.

[0049] Preferably, both the card slot 19 and the card strip 18 are T-shaped.

[0050] Specifically, the T-shaped card strip 18 can be directly slid into the T-shaped card slot 19 for easy connection.

[0051] In summary, when implementing the pesticide and veterinary drug residue detection purification filtration device of this application, the third plate 4 can be connected to the top of the piston rod of the syringe 7 first. The bottom and top of the syringe barrel of the syringe 7 are respectively abutted against the top surface of the first plate 2 and the bottom surface of the second plate 3, and the injection end and piston rod of each syringe 7 pass through a first hole 5 and a second hole 6 respectively. Then, the filter head 9 is inserted and connected to the injection end of the syringe 7, and the needle 10 is inserted and connected to the bottom end of the filter head 9. The unpurified sample is added into the syringe barrel of the syringe 7. Finally, the sample bottle 11 is placed at the bottom of the box 1, and the needle 10 is inserted into the liner of the corresponding sample bottle 11 to a depth of 0.5 cm. At this time, the piston rod of the syringe 7 can be inserted into the syringe barrel of the syringe 7.

[0052] When adjusting the lifting mechanism 8 to rise or fall, external pressure can be slowly applied to the third plate 4 to inject sample liquid into the liner of the sample bottle 11. When more than half of the liner is filled with sample, pressurization can be stopped, the sample bottle 11 can be removed, the cap can be put on the machine, and it is ready to be used. Compared with manual purification, it saves time and effort, and also realizes the simultaneous purification and filtration of multiple samples. In addition, since a needle 10 is added to the filter head 9, the needle 10 extends into the liner of the sample bottle 11, which can prevent the formation of air bubbles that cannot be expelled and cause the sample liquid to leak out. Thus, the purification and filtration steps of agricultural products and aquatic products before sample introduction are simple and precisely controlled, which reduces the workload and pressure of laboratory personnel and further improves the detection efficiency.

[0053] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A pesticide and veterinary drug residue detection, purification, and filtration device, characterized in that, The purification and filtration device includes: Box; A first plate, a second plate, and a third plate are arranged sequentially from bottom to top inside the housing. The first plate has multiple first holes, and the second plate has multiple second holes. The two ends of the first plate are detachably connected to the two sides of the housing, and the two ends of the second plate are detachably connected to the two sides of the housing. Multiple syringes, the bottom end and top end of the syringe barrel of each syringe respectively abut against the top surface of the first plate and the bottom surface of the second plate, the injection end and piston rod of each syringe respectively pass through a first hole and a second hole, and the third plate is detachably connected to the top end of the piston rod of the multiple syringes; A lifting mechanism is provided above the third plate, and the lifting end of the lifting mechanism is connected to the third plate. Multiple filter heads, the tips of which are detachably connected to the injection ends of multiple syringes; Multiple needles, each of which is detachably connected to the bottom end of a plurality of filter heads; Multiple sample vials are placed at the bottom of the box, and multiple needles are inserted into the liner of each sample vial.

2. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The pesticide and veterinary drug residue detection, purification and filtration device also includes two first blocks, each of which is elongated. The two first blocks are respectively connected to the two sides of the housing. The opposing surfaces of the two first blocks are provided with first recesses, and the two ends of the first plate are respectively slidably connected in the two first recesses.

3. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The pesticide and veterinary drug residue detection and purification filtration device also includes two second blocks, which are elongated and connected to the two sides of the box body respectively. The opposing surfaces of the two second blocks are provided with second recesses, and the two ends of the second plate are slidably connected in the two second recesses respectively.

4. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The pesticide and veterinary drug residue detection, purification, and filtration device also includes: Two slide rails are respectively connected to both sides of the housing; Two sliders are connected to both ends of the third plate, and the two sliders are slidably connected to the two slide rails.

5. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The bottom of the box is provided with multiple positioning slots, and the multiple sample bottles are placed in the multiple positioning slots respectively.

6. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The pesticide and veterinary drug residue detection, purification, and filtration device also includes multiple positioning cylinders, which are connected to the top surface of the first plate. Each positioning cylinder communicates with a first hole, and the bottom end of the syringe barrel is inserted into a positioning cylinder.

7. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 6, characterized in that, The pesticide and veterinary drug residue detection, purification, and filtration device also includes multiple positioning sleeves, which are respectively fitted inside multiple positioning cylinders. The positioning sleeves are used to fit against the syringe barrel wall.

8. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 1, characterized in that, The pesticide and veterinary drug residue detection and purification filtration device also includes at least one locking strip, the bottom of each locking strip being connected to the top of the piston rod of at least two syringes, and the locking strip being snapped into the third plate.

9. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 8, characterized in that, The bottom surface of the third plate is provided with at least one slot, and each of the card strips can be inserted into one of the slots.

10. The pesticide and veterinary drug residue detection, purification, and filtration device according to claim 9, characterized in that, Both the card slot and the card strip are T-shaped.

Images