Oscillating device for detection pretreatment of pesticide residues of traditional Chinese medicinal materials

Abstract

The utility model discloses an oscillation device for detection pretreatment of pesticide residues of traditional Chinese medicinal materials, and belongs to the technical field of food detection equipment. The oscillation device comprises a main machine and an oscillation disc arranged on the main machine, and further comprises a fixing assembly which comprises a fixing rod which can be in threaded connection with connecting holes corresponding to the two ends of the main machine and located on the outer side of the oscillation disc; mounting pieces which can be connected with the fixing rods are arranged at the two ends of the fixing frame; the fixing holes are transversely and longitudinally formed in the fixing frame at intervals; the fixing frame is positioned above the oscillation disc; the vertical projection of the fixing hole is located in the area range of the oscillation disc. The fixing rod can be installed in the connecting hole, the fixing frame is installed on the fixing rod through the installing piece, the fixing hole is used for containing a sample container, the sample container can be supported and limited in the oscillation processing process, the container is prevented from shaking and falling out of the pipe frame, and the situation that sample powder adheres to the inner wall of the container due to the fact that the oscillation amplitude is too large can be avoided; the extraction effect is influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of food testing equipment, specifically relating to an oscillation device for pretreatment of pesticide residues in Chinese medicinal materials. Background Technology

[0002] The detection of pesticide residues in traditional Chinese medicine is conducted according to the requirements of the pharmacopoeia. For example, the medicinal material sample is first crushed, then an extraction solvent is added, and the sample solution is prepared by shaking and mixing. Then, purification and detection are performed. For instance, in the treatment of samples containing pesticide residues prohibited by the pharmacopoeia, after the initial shaking treatment, a mixture of anhydrous magnesium sulfate and anhydrous sodium acetate powder is added, immediately shaken to disperse, and then placed on a shaker for vigorous shaking.

[0003] Thus, sample processing requires multiple shaking operations, with reagents added after each shaking, followed by another shaking. Currently, the mixing after adding reagents is primarily done manually; that is, after removing the container, each container is individually shaken. For batch sample processing, individual shaking is time-consuming and inefficient, and may result in incomplete mixing. Furthermore, during the shaking process, the sample containers are only supported by tube racks, which can easily cause the container caps to fall off or the containers to fall out of the racks when the shaking amplitude is large. Utility Model Content

[0004] This invention provides an oscillation device for pretreatment of Chinese medicinal materials for pesticide residue detection, in order to solve the above-mentioned technical problems.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] An oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials includes a main unit, an oscillation disk mounted on the main unit, and a fixing assembly including: a fixing rod, which can be threadedly connected to connecting holes corresponding to both ends of the main unit and located outside the oscillation disk; a fixing frame, with mounting parts at both ends that can be connected to the fixing rod; and a plurality of fixing holes, spaced apart laterally and longitudinally on the fixing frame; the fixing frame is located above the oscillation disk; and the vertical projection of the fixing holes is within the area of ​​the oscillation disk.

[0007] Furthermore, the mounting component can surround the fixing rod and be fixed by a connector; the mounting component is provided with a slot at the height position of the fixing rod to lock the mounting component.

[0008] Furthermore, the fixing component also includes an elastic ring layer disposed on the inner sidewall of the fixing hole; the inner diameter of the elastic ring layer is slightly larger than the outer diameter of the sample container.

[0009] Furthermore, the fixing component includes: a pressure plate connected to the fixing rod and positioned above the fixing frame; a groove located at the bottom of the pressure plate and positioned above the fixing hole; the area of ​​the groove is larger than the outer diameter of the sample container cap.

[0010] Furthermore, the fixing component also includes: a slot located on one side of the pressure plate along its length; a shaking plate located within the slot; the shaking plate being connected to the pressure plate via a connector.

[0011] Furthermore, the size of the shaking sample plate is larger than the size of the fixing frame, so that the shaking sample plate can be removed and placed on the fixing frame when in use.

[0012] Furthermore, the fixing frame has a pressing hole on one side corresponding to the shaking plate that matches the cap of the sample container tube; the number of the pressing holes is the same as the number of the fixing holes;

[0013] Furthermore, the fixing component also includes: raised patterns, which are provided on the other side of the pressure hole opposite to the shaking plate; the raised patterns are distributed outward from the center point of the shaking plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The fixing frame of this novel device is installed on the fixing rod via the mounting component. The fixing hole can be used to place the sample container, and the fixing rod can be installed in the connecting hole. In this way, it can support and limit the sample container during the shaking process, which not only prevents the container from shaking and falling out of the tube rack, but also avoids excessive shaking amplitude that would cause the sample powder to adhere to the inner wall of the container and affect the extraction. The fixing rod and the connecting hole are threaded, which can be disassembled as needed for easy storage.

[0016] 2. The mounting component is connected to the fixing rod in the slot to prevent movement during vibration and also to fix the fixing component; the elastic ring layer inside the fixing hole has an elastic effect, which makes it easy to clamp the sample container.

[0017] 3. The pressure plate is connected to the top of the sample container, which can limit the top of the sample container cap during shaking to prevent the cap from falling off due to large shaking amplitude, causing sample contamination or loss. Since some test items require multiple shakings when processing samples, and other reagents need to be added after each shaking, the shaking plate can be used to shake the sample well after adding reagents. The holder and sample container can be removed from the shaker, and the pressure plate can be pressed on the sample container cap above the holder to shake the sample well before shaking. This avoids shaking each sample one by one and improves work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of the present utility model.

[0020] Figure 2 This is a top view of the host computer.

[0021] Figure 3 This is a schematic diagram of the fixed frame structure.

[0022] Figure 4 This is a schematic diagram of the shaking template structure.

[0023] Figure 5 This is a schematic diagram of the fixed rod structure.

[0024] Reference numerals: 1-Main unit, 11-Oscillating plate, 12-Connecting hole, 13-Slot, 2-Fixing component, 21-Fixing rod, 22-Fixing bracket, 221-Mounting component, 23-Fixing hole, 24-Elastic ring layer, 25-Pressure plate, 26-Groove, 27-Slot, 28-Shaking plate, 29-Pressure hole. Detailed Implementation

[0025] To facilitate a better understanding of this utility model, the following examples are provided in conjunction with the accompanying drawings. These examples fall within the protection scope of this utility model, but do not limit the protection scope of this utility model.

[0026] Example 1

[0027] An oscillating device for pretreatment of Chinese medicinal materials for pesticide residue detection, such as Figures 1-5 As shown, the device includes a main unit 1, an oscillating disk 11 mounted on the main unit 1, and a fixing assembly 2, including: a fixing rod 21, which can be threadedly connected to the connecting holes 12 corresponding to both ends of the main unit 1 and located on the outside of the oscillating disk 11; a fixing frame 22, with mounting parts 221 at both ends that can be connected to the fixing rod 21; and a plurality of fixing holes 23, which are spaced laterally and longitudinally on the fixing frame 22; the fixing frame 22 is located above the oscillating disk 11; and the vertical projection of the fixing holes 23 is within the area of ​​the oscillating disk 11.

[0028] The fixing rods are located at both ends of the main unit and are inserted into the connecting holes via threaded connections. After the fixing rods are installed, the fixing frame can be installed on the fixing rods to support the sample container. When in use, the fixing frame can be positioned in the middle of the sample container's height.

[0029] The fixing hole is used to place the sample container. During use, the main unit runs and the motor drives the oscillating disk to oscillate. Therefore, in order to make the sample better oscillate, the vertical projection of the fixing hole should fall entirely within the range of the oscillating disk. The sample container used can be an existing tubular device that can be used for oscillation, such as a centrifuge tube.

[0030] The oscillating disk can be rectangular, and the structure of the mounting frame should match that of the oscillating disk.

[0031] Instructions for use: First, connect and fix the fixing rod to the connecting hole, then install the fixing bracket on the fixing rod via the mounting parts; then, put the sample to be processed and the solvent into the sample container in sequence, and then put the sample container into the fixing hole; finally, start the main unit, adjust the parameters of the oscillation device (frequency, speed, etc.) for oscillation treatment, and after the treatment is completed, turn off the main unit, remove the sample container from the fixing hole, and then proceed with subsequent processing.

[0032] Example 2

[0033] Compared with Example 1, the oscillation device also has the following technical features:

[0034] like Figures 1-3 As shown, the mounting component 221 can surround the fixing rod 21 and be fixed by the connector; the mounting component 221 is provided with a slot 13 at the height position of the fixing rod 21 corresponding to the surrounding position of the mounting component 221 to lock the mounting component 221.

[0035] like Figures 1-3 As shown, the fixing component 2 also includes: an elastic ring layer 25, which is disposed on the inner sidewall of the fixing hole 23; the inner diameter of the elastic ring layer 24 is slightly larger than the outer diameter of the sample container.

[0036] like Figures 1-3 As shown, the fixing component 2 includes: a pressure plate 25, which is connected to the fixing rod 21 and is located above the fixing frame 22; a groove 26, which is located at the bottom of the pressure plate 25 and above the fixing hole 23; the area of ​​the groove 26 is larger than the outer diameter of the sample container tube cap.

[0037] When the mounting part is connected to the fixing rod, it can be wrapped around the fixing rod and fixed with the connector, making it easy to snap into the slot of the fixing rod; the connector can be existing products such as screws and nuts; the elastic ring layer in the fixing hole can be used to clamp the sample container, which can play a better role in stabilization; multiple slots can be set in the height direction of the fixing rod to facilitate the use of sample containers of different lengths.

[0038] When in use, the pressure plate can be connected to the top of the sample container to limit the top of the sample container during oscillation and prevent large oscillation amplitude; when not in use, the pressure plate can be removed.

[0039] like Figure 4As shown, the upper end of the fixing rod can be threaded. When using the pressure plate, first screw in a nut to the appropriate height position, install the fixing plate, and then screw in the nut. The pressure plate is fixed by the nuts at the upper and lower ends, which is convenient for use. The groove set at the bottom of the pressure plate can press against the sample container tube cap when using the pressure plate to prevent the tube cap from loosening during the vibration process and affecting the normal sample processing process.

[0040] Example 3

[0041] like Figures 1-4 As shown, the fixing component 2 further includes: a slot 27, located on one side of the pressure plate 25 along its length; a shaking plate 28, located within the slot 27; the shaking plate 28 is connected to the pressure plate 25 via a connector.

[0042] like Figures 1-4 As shown, the size of the shaking plate 28 is larger than the size of the fixing frame 22 so that the shaking plate 28 can be taken out and covered on the fixing frame 22 when in use.

[0043] like Figures 1-4 As shown, the fixing frame 22 has a pressing hole 29 on one side corresponding to the sample plate 28, which matches the cap of the sample container tube used; the number of pressing holes 29 is the same as the number of fixing holes 23.

[0044] like Figures 1-4 As shown, the fixing component 2 also includes: raised patterns, which are provided on the other side of the pressure hole 29 opposite to the shaking plate 28; the raised patterns are distributed around the center point of the shaking plate 28.

[0045] The slots are designed to store the sample plate, which is connected to the pressure plate via a connector, which can be a bolt. Screw holes are made at corresponding positions on the sample plate and the pressure plate, and the two can be connected by bolts. When the sample plate needs to be removed, loosen the bolts to remove the sample plate and then screw the bolts back onto the pressure plate.

[0046] The size of the shaking plate can be slightly larger than the fixing frame so that the shaking plate can be fully pressed against the cap of the sample container to be shaken; a fixing hole is opened on one side of the shaking plate to facilitate the alignment of the sample cap with the fixing hole of the shaking plate during shaking, which serves as a limit and facilitates the shaking operation when adding reagents again.

[0047] When testing Chinese medicinal herbs for residues of banned pesticides, sample processing requires multiple shaking operations, with each shaking requiring the addition of new reagents and subsequent shaking. After adding new reagents, the sample solution in the container needs to be shaken thoroughly. Currently, this is done manually, one container at a time, which is time-consuming and inefficient for batch processing. Therefore, a new shaking plate design allows the sample container to be removed from the shaker along with its mounting bracket after reagents are added. The shaking plate's mounting holes are then aligned with the container cap and pressed onto the bracket. One hand supports the bottom of the sample container, while the other hand holds the shaking plate to shake the sample thoroughly. After shaking, the sample container is placed on the shaking plate, the mounting bracket is connected to the mounting rod, and the shaking plate is inserted into the slot for further shaking. This eliminates the need for individual shaking and improves operational efficiency.

[0048] The host and other components involved in this invention are not innovative points created by this invention. Specific models will not be described in detail. Installation, use, and connection are all existing methods.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A oscillation device for pretreatment of Chinese medicinal materials for pesticide residue detection, comprising a main unit (1) and an oscillation disk (11) disposed on the main unit (1), characterized in that, Also includes: Fixing component (2), including: The fixing rod (21) can be threadedly connected to the connecting holes (12) corresponding to both ends of the host (1) and located outside the oscillating disk (11); The fixing frame (22) has mounting parts (221) at both ends that can be connected to the fixing rod (21); There are several fixing holes (23), which are spaced out horizontally and vertically on the fixing frame (22); The pressure plate (25) is connected to the fixing rod (21) and is located above the fixing frame (22); A slot (27) is provided on one side of the pressure plate (25) along its length. A sample plate (28) is provided in the slot (27); The fixing frame (22) is positioned above the oscillating disk (11); The vertical projection of the fixing hole (23) is within the area of ​​the oscillating disk (11); The shaking plate (28) is connected to the pressure plate (25) via a connector; the fixing frame (22) is provided with a pressure hole (29) on one side corresponding to the shaking plate (28) that matches the cap of the sample container tube. The pressure hole (29) has raised patterns distributed outward from the center point of the shaking plate (28) on the other side opposite to the shaking plate (28).

2. The oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials according to claim 1, characterized in that, The mounting component (221) can surround the fixing rod (21) and be fixed by a connector; The mounting component (221) has a slot (13) at a position around the fixed rod (21) at the same height as the mounting component (221) to hold the mounting component (221).

3. The oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials according to claim 2, characterized in that, The fixing component (2) also includes: An elastic ring layer (24) is provided on the inner sidewall of the fixing hole (23); The inner diameter of the elastic ring layer (24) is slightly larger than the outer diameter of the sample container.

4. The oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials according to claim 3, characterized in that, The fixing component (2) also includes: A groove (26) is provided at the bottom of the pressure plate (25) and above the fixing hole (23); The area of ​​the groove (26) is larger than the outer diameter of the sample container cap.

5. The oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials according to claim 4, characterized in that, The size of the shaking plate (28) is larger than the size of the fixing frame (22) so that the shaking plate (28) can be taken out and covered on the fixing frame (22) when in use.

6. The oscillation device for pretreatment of pesticide residue detection in Chinese medicinal materials according to claim 5, characterized in that, The number of pressure holes (29) is the same as the number of fixing holes (23).

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