Simple preparation device for food detection sample liquid
By designing a simple preparation device for food detection sample liquid and automatically preparing sample liquid using lifting device and crushing device, the problem of low sample preparation efficiency in the prior art is solved, and an automated and safe sample preparation process is realized, which is suitable for rapid detection of food testing.
Patent Information
- Application Number
- CN202421434222.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the prior art, the preparation efficiency of food testing sample solution is low, especially when the rice heavy metal is tested, it requires manual grinding, which is difficult to meet the rapid detection needs of rice demand.
A simple preparation device for food detection sample liquid is designed, including a crushing device, a lifting device and a cover-closing device. The position change of the sample cup is controlled by the lifting device, and the sample is ground with the liquid adding nozzle to inject reagents and the crushing device to achieve automatic preparation of sample liquid.
It realizes automatic preparation of food detection sample liquid, eliminating the steps of grinding and oscillating and mixing the samples outside the instrument, improving detection efficiency, safety and convenience, and suitable for rapid on-site inspection.
Smart Images
Figure CN223166418U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food safety detection, in particular to a simple device for preparing food detection sample liquid. Background Technique
[0002] For food detection, such as the detection of heavy metal content in rice, it is often necessary to detect based on rice flour. Therefore, rice samples (rice samples) need to be sent to a special instrument for grinding into powder, or manual grinding operation is required, and then the ground rice flour is put into a detector for detection. The efficiency of the above detection work is too low to meet the current rice demand and usage. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a simple device for preparing food detection sample liquid, which comprises a machine base; a crushing device arranged on the upper side of the machine base, the crushing device includes a crushing motor, a cutter shaft is arranged under the crushing motor, and crushing cutter heads are arranged on the cutter shaft; a sample cup arranged under the machine base, the sample cup has a cavity and a cup mouth located on the upper side; a lifting device connected to the machine base and the sample cup to control the lifting movement of the sample cup between a first position on the upper side and a second position on the lower side; a lid closing device located at the crushing device, the lid closing device has a lid closing hole, the cutter shaft passes through the lid closing hole downward, a liquid adding nozzle is arranged on the lid closing device, when the sample cup rises to the first position, the lid closing device covers the cup mouth of the sample cup, and the liquid adding nozzle is located in the cup mouth of the sample cup, and the crushing cutter heads extend into the cavity of the sample cup.
[0004] As some preferred embodiments of the utility model, an output shaft is arranged under the crushing motor, the output shaft and the cutter shaft are connected through a coupling, the coupling includes a coupling pipe sleeve arranged on the output shaft and the cutter shaft, and coupling screws are arranged on the peripheral wall of the coupling pipe to press against the output shaft and the cutter shaft.
[0005] As some preferred embodiments of the utility model, a drain port and a drain valve are arranged under the sample cup, the drain port is communicated with the cavity of the sample cup, and the drain valve is controlled to be opened and closed through a drain valve control device.
[0006] As some preferred embodiments of the utility model, the drain valve includes a valve plate and a valve rod, the valve plate is inside the sample cup and covers the drain port, the valve rod is located under the valve plate and passes through the lower side of the sample cup and is connected with the drain valve control device.
[0007] As some preferred embodiments of the present utility model, a bottom wall recess is provided on the bottom wall inside the sample cup, the drain port is located on the bottom wall recess, and the valve plate covers the bottom wall recess.
[0008] As some preferred embodiments of the present utility model, a top cone is provided on the valve plate. When the sample cup rises to the first position, the top cone abuts against the lower end of the cutter shaft.
[0009] As some preferred embodiments of the present utility model, the lifting device includes a lifting motor, a lifting guide rail, and a lifting frame. The lifting motor is located above the machine base, the lifting guide rail extends vertically on the machine base, the lifting motor has a lifting motor screw, the lifting motor screw is threadedly connected to the lifting frame, the lifting frame is connected to the sample cup, a lifting slider is provided on the lifting frame, and the lifting slider is slidably connected to the lifting guide rail.
[0010] As some preferred embodiments of the present utility model, the lid closing device includes an upper lid frame and a lower lid body. When the sample cup rises to the first position, the lower lid body covers the cup mouth of the sample cup.
[0011] As some preferred embodiments of the present utility model, a lid body border is provided on the lower side of the edge of the lower lid body, and a lid body cavity is formed between the lower lid body and the lid body border. When the sample cup rises to the first position, the lower lid body and the lid body border cover the cup mouth of the sample cup.
[0012] As some preferred embodiments of the present utility model, the upper lid frame includes an upper lid plate and an upper side panel. The upper side panel is connected to the upper side of the edge of the upper lid plate. The liquid adding nozzle is located on the upper lid plate. A lid frame cavity is formed between the upper lid plate and the upper side panel. A panel hole is provided on the upper side panel for the connecting pipe of the liquid adding nozzle to extend out.
[0013] According to the food detection sample liquid simple preparation device provided by the present utility model, by using the lifting device to control the sample cup, cooperating with the work of injecting reagents through the liquid adding nozzle and grinding the sample by the grinding device, it has at least the following technical effects: achieving the technical effect of automatically preparing the food detection sample liquid, eliminating the need to grind the components of the sample outside the instrument and then perform oscillating and mixing, and automatically completing the mixing and grinding of the sample and the reagent without manual operation, which is safe and convenient to use.
[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the utility model. Description of the Drawings
[0015] Additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:
[0016] Figure 1 is a perspective view of the simple food detection sample solution preparation device of the present utility model;
[0017] Figure 2 is a perspective view of the crushing device in the present utility model;
[0018] Figure 3 is a perspective view of the sample cup in the present utility model;
[0019] Figure 4 is a perspective view of the lifting device in the present utility model.
[0020] Reference numerals:
[0021] Machine base 100; crushing device 200, crushing motor 210, output shaft 211, crushing cutter head 220, cutter shaft 230, coupling 240, coupling pipe 241, coupling screw 242; sample cup 300, cup bottom recess 301, drain port 310; drain valve 400, valve plate 410, top cone 411, valve plate sealing piece 412, valve rod 420, valve rod sealing ring 421, drain valve control device 430, cylinder piston rod 431, connecting rod 432; cover closing device 500, upper side cover frame 510, upper side cover plate 511, upper side surrounding plate 512, surrounding plate hole 513, lower side cover body 520, cover body border 521, liquid adding nozzle 530, cover closing cover hole 540, cutter bearing 550; lifting device 600, lifting motor 610, lifting motor screw 611, lifting guide rail 620, lifting frame 630, lifting slider 631. Detailed implementation manners
[0022] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0023] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0024] In the description of the present utility model, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", and "exceeding" do not include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0025] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.
[0026] The following refers to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 Describe a chip removal trolley according to an embodiment of the present utility model.
[0027] Refer to Figure 1 As shown, a simple food detection sample solution preparation device according to an embodiment of the present utility model includes a machine base 100, a crushing device 200, a sample cup 300, a lid closing device 500, and a lifting device 600.
[0028] The crushing device 200 is arranged on the upper side of the machine base 100. The crushing device 200 includes a crushing motor 210. A cutter shaft 230 is arranged on the lower side of the crushing motor 210, and crushing cutter heads 220 are arranged on the cutter shaft 230; the sample cup 300 is arranged on the lower side of the machine base 100, and the sample cup 300 has a cavity and a cup mouth located on the upper side; the lifting device 600 is connected to the machine base 100 and the sample cup 300, and controls the lifting movement of the sample cup 300 between a first position on the upper side and a second position on the lower side; the lid closing device 500 is located at the crushing device 200. The lid closing device 500 has a lid closing hole, and the cutter shaft 230 passes downward through the lid closing hole. A liquid adding nozzle 530 is arranged on the lid closing device 500. When the sample cup 300 rises to the first position, the lid closing device 500 covers the cup mouth of the sample cup 300, and the liquid adding nozzle 530 is located in the cup mouth of the sample cup 300, and the crushing cutter heads 220 extend into the cavity of the sample cup 300.
[0029] For example Figure 2 As shown, the cutter shaft 230 is arranged on the lower side of the crushing motor 210, and the crushing cutter heads 220 are arranged on the cutter shaft 230. In this way, when the crushing motor 210 is started, it drives the cutter shaft 230 to rotate, and then drives the crushing cutter heads 220 to rotate to crush the sample. For example Figure 3 As shown, the sample cup 300 is used to hold the sample. For example Figure 4 As shown, the lifting device 600 is responsible for driving the sample cup 300 to lift and lower.
[0030] For example Figure 1 、 Figure 2 、 Figure 3 As shown, the lid closing device 500 and the crushing device 200 are relatively fixed on the machine base 100, while the sample cup 300 moves up and down between the first position and the second position below. When the sample cup 300 rises to the first position, the lid closing device 500 covers the mouth of the sample cup 300, the liquid adding nozzle 530 is located in the mouth of the sample cup 300 for injecting liquid into the cavity of the sample cup 300, and the crushing cutter head 220 extends into the cavity of the sample cup 300. When the sample cup 300 descends to the second position, both the lid closing device 500 and the crushing cutter head 220 leave the sample cup 300. The lifting device 600 can control the lifting of the sample cup 300 in an automatic or manual manner.
[0031] During actual operation, taking rice as an example, first, the sample cup 300 is in the second position, and both the lid closing device 500 and the crushing cutter head 220 leave the sample cup 300, so that the rice sample can be put into the sample cup 300. Then the lifting device 600 controls the sample cup 300 to rise to the first position, the lid closing device 500 covers the mouth of the sample cup 300, and the crushing cutter head 220 extends into the cavity of the sample cup 300. In this way, the liquid adding nozzle 530 can inject liquid A and pure water into the sample cup 300 as the liquid A reagent. Then the crushing motor 210 is started, and the crushing cutter head 220 crushes the sample. In this way, the required crushed rice sample liquid can be prepared.
[0032] In some embodiments of the present invention, an output shaft 211 is provided below the crushing motor 210, and the output shaft 211 is connected to the cutter shaft 230 through a coupling 240. The coupling 240 includes a coupling tube 241 sleeved on the output shaft 211 and the cutter shaft 230, and coupling screws 242 are provided on the peripheral wall of the coupling tube 241 to press against the output shaft 211 and the cutter shaft 230.
[0033] The coupling 240 serves as a connecting device between the output shaft 211 of the crushing motor 210 and the cutter shaft 230 of the crushing cutter head 220. The output shaft 211 and the cutter shaft 230 are respectively inserted into the upper and lower ends of the coupling tube 241, and then the coupling screws 242 are screwed in so that the coupling screws 242 press against the output shaft 211 and the cutter shaft 230.
[0034] Specifically, step positions are provided on both the output shaft 211 and the cutter shaft 230, and the coupling screws 242 press against the step positions of the output shaft 211 and the cutter shaft 230.
[0035] In some embodiments of the present invention, a drain port 310 and a drain valve 400 are provided below the sample cup 300. The drain port 310 is communicated with the cavity of the sample cup 300, and the drain valve 400 is controlled to open and close through a drain valve control device 430.
[0036] When the sample cup 300 rises to the first position, the reagent solution A is added and the sample is crushed. An appropriate amount of the crushed rice sample solution is then removed, and the remaining liquid and residue in the sample cup 300 are drained through the drain port 310. The drain valve control device 430 controls the drain valve 400 to open, allowing the remaining liquid and residue to be drained through the drain port 310.
[0037] In addition, pure water may be added to the sample cup 300 through the liquid adding nozzle 530 to clean the interior of the sample cup 300 .
[0038] In some embodiments of the present invention, the drain valve 400 includes a valve plate 410 and a valve stem 420. The valve plate 410 is inside the sample cup 300 and covers the drain port 310. The valve stem 420 is located on the lower side of the valve plate 410 and passes through the lower side of the sample cup 300 to connect with the drain valve control device 430.
[0039] The valve stem 420 is located below the valve plate 410. This means that the drain valve control device 430 controls the valve stem 420 to move up and down, thereby driving the valve plate 410. When the valve plate 410 is in the lowered position, it covers the drain port 310, effectively closing the drain port 310. When the valve plate 410 is in the raised position, it moves away from the drain port 310, effectively opening the drain port 310.
[0040] In some embodiments of the present invention, a cup bottom recess 301 is provided on the bottom wall of the sample cup 300 , the drain port 310 is located on the cup bottom recess 301 , and the valve plate 410 covers the cup bottom recess 301 .
[0041] The design of the cup bottom recess 301 corresponds to the valve plate 410 , ensuring that there is no leakage when the valve plate 410 covers the drain port 310 at the bottom of the sample cup 300 .
[0042] In some embodiments of the present invention, a valve plate sealing sheet 412 is provided on the lower side of the valve plate 410 to ensure that there is no water leakage when the valve plate 410 closes the drain port 310 .
[0043] In some embodiments of the present invention, a valve stem sealing ring 421 is provided between the valve stem 420 and the lower side of the sample cup 300 to prevent the sample liquid in the sample cup 300 from leaking out along the valve stem 420 .
[0044] In some embodiments of the present invention, a top cone 411 is provided on the valve plate 410 . When the sample cup 300 rises to the first position, the top cone 411 presses against the lower end of the knife shaft 230 .
[0045] When the top cone 411 presses against the blade shaft 230 , the blade shaft 230 will be pressed against the bottom of the sample cup 300 even when the blade shaft 230 rotates, and the blade shaft 230 will not damage the bottom of the sample cup 300 .
[0046] Specifically, the upper side of the top cone 411 has a tip, and the tip of the top cone 411 abuts against the tool shaft 230.
[0047] In some embodiments of the present invention, the drain valve control device 430 adopts a cylinder structure. The drain valve control device 430 includes a cylinder piston rod 431. The cylinder piston rod 431 is connected to the valve rod 420 through a connecting rod 432 to realize the linkage between the cylinder piston rod 431 and the valve rod 420 of the cylinder structure.
[0048] In some embodiments of the present invention, the lifting device 600 includes a lifting motor 610, a lifting guide rail 620, and a lifting frame 630. The lifting motor 610 is located on the upper side of the machine base 100. The lifting guide rail 620 extends vertically on the machine base 100. The lifting motor 610 has a lifting motor screw 611. The lifting motor screw 611 is threadedly connected to the lifting frame 630. The lifting frame 630 is connected to the sample cup 300. A lifting slider 631 is provided on the lifting frame 630, and the lifting slider 631 is slidably connected to the lifting guide rail 620.
[0049] When the lifting motor 610 drives the lifting motor screw 611 to rotate, the lifting frame 630 is driven to move up and down through the thread of the lifting motor screw 611. At the same time, the lifting guide rail 620 guides the lifting slider 631 of the lifting frame 630 to ensure the smooth lifting process of the lifting frame 630 and the sample cup 300.
[0050] In some embodiments of the present invention, the lid closing device 500 includes an upper lid frame 510 and a lower lid body 520. When the sample cup 300 rises to the first position, the lower lid body 520 covers the cup mouth of the sample cup 300.
[0051] The upper lid frame 510 is connected to the machine base 100 or the crushing device 200 as a fixed part, and the lower lid body 520 can be made of a material with better sealing performance. In this way, the lower lid body 520 covering the cup mouth of the sample cup 300 can avoid leakage.
[0052] Specifically, the connection between the upper lid frame 510 and the lower lid body 520 is detachable, that is, the lower lid body 520 can be replaced.
[0053] In some embodiments of the present invention, a lid body border 521 is provided on the lower side of the edge of the lower lid body 520. A lid body cavity is formed between the lower lid body 520 and the lid body border 521. When the sample cup 300 rises to the first position, the lower lid body 520 and the lid body border 521 cover the cup mouth of the sample cup 300 to ensure a tighter cover of the cup mouth of the sample cup 300.
[0054] In some embodiments of the present utility model, the upper cover frame 510 includes an upper cover plate 511 and an upper side panel 512. The upper side panel 512 is connected to the upper side of the edge of the upper cover plate 511. The liquid filling nozzle 530 is located on the upper cover plate 511. A cover cavity is formed between the upper cover plate 511 and the upper side panel 512. A panel hole 513 is provided on the upper side panel 512 for the connecting pipe of the liquid filling nozzle 530 to extend out.
[0055] The liquid filling nozzle 530 needs a connecting pipe to input liquid A and pure water. The cover cavity left between the upper cover plate 511 and the upper side panel 512 can be used as a space to accommodate the connecting pipe. The connecting pipe extends out through the panel hole 513 to connect to the liquid sources of liquid A and pure water.
[0056] Moreover, the upper cover frame 510 also plays a role in protecting the cutter shaft 230 through the upper side panel 512.
[0057] In some embodiments of the present utility model, a cutter bearing 550 is provided between the closing cover hole 540 and the cutter shaft 230 to make the rotation process of the cutter shaft 230 smoother.
[0058] Next, with reference to Figure 1 and Figure 2 A food detection sample solution simple preparation device according to an embodiment of the present utility model will be described in detail with a specific embodiment. It should be understood that the following description is only an exemplary illustration and not a specific limitation of the utility model. The food detection sample solution simple preparation device of the embodiment includes a machine base 100, a crushing device 200, a sample cup 300, a drain valve 400, a closing cover device 500, and a lifting device 600. The machine base 100 is a vertical plate structure. The crushing device 200 includes a crushing motor 210 that controls the lower crushing cutter head 220. The liquid filling nozzle 530 is provided on the closing cover device 500. The lifting device 600 controls the lifting of the sample cup 300, and the drain valve 400 controls the opening and closing of the drain port 310 of the sample cup 300.
[0059] Taking rice as an example, the specific working process of preparing broken rice sample solution is as follows:
[0060] 1) Put a certain amount of rice sample into the sample cup 300 through a funnel;
[0061] 2) After adding the rice sample, the sample cup 300 automatically rises to the position of the crushing cutter head 220;
[0062] 3) Inject liquid A and pure water from the liquid filling nozzle 530 into the liquid A reagent through a plunger pump;
[0063] 4) Start the crushing motor 210 to crush the rice;
[0064] 5) After the rice crushing is completed, let it stand for 3 minutes, and then take away the supernatant;
[0065] 6) Drain away the remaining waste liquid residue through the liquid discharge port at the bottom of the sample cup 300;
[0066] 7) Add pure water through the liquid filling nozzle 530 to clean the inside of the sample cup 300.
[0067] According to the simple food detection sample solution preparation device of the embodiment of the present invention, by setting like this, at least the following effects can be achieved: realizing the technical effect of automatically preparing the food detection sample solution, eliminating the need to grind the sample into powder outside the instrument and then oscillate and mix it, and automatically completing the mixing and grinding of the sample and the reagent without manual operation, which is safe and convenient to use; after the sample solution preparation is completed, the remaining waste liquid residue can be discharged through the drain port 310; the overall structure is simple, small in size and light in weight, suitable for directly preparing the food detection sample solution on site to cooperate with rapid detection, and greatly improving the efficiency of food detection work.
[0068] In the description of this specification, the description with reference to terms such as "some embodiments" or "it can be conceived that" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0069] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A simple device for preparing a food detection sample solution, characterized in that, Comprising: A machine base (100); A crushing device (200), the crushing device (200) is arranged on the upper side of the machine base (100), the crushing device (200) includes a crushing motor (210), a cutter shaft (230) is arranged under the crushing motor (210), and crushing cutter heads (220) are arranged on the cutter shaft (230); A sample cup (300), the sample cup (300) is arranged on the lower side of the machine base (100), the sample cup (300) has a cavity and a cup mouth located on the upper side; A lifting device (600), the lifting device (600) is connected to the machine base (100) and the sample cup (300), and controls the lifting movement of the sample cup (300) between a first position on the upper side and a second position on the lower side; A lid closing device (500), the lid closing device (500) is located on the crushing device (200), the lid closing device (500) has a lid closing hole (540), the cutter shaft (230) passes through the lid closing hole (540) downward, a liquid adding nozzle (530) is arranged on the lid closing device (500), when the sample cup (300) rises to the first position, the lid closing device (500) covers the cup mouth of the sample cup (300), and the liquid adding nozzle (530) is located in the cup mouth of the sample cup (300), and the crushing cutter heads (220) extend into the cavity of the sample cup (300).
2. The simple preparation device for a food detection sample solution according to claim 1, wherein: The lower side of the crushing motor (210) has an output shaft (211), the output shaft (211) is connected to the cutter shaft (230) through a coupling (240), the coupling (240) includes a coupling pipe (241) sleeved on the output shaft (211) and the cutter shaft (230), and coupling screws (242) are arranged on the peripheral wall of the coupling pipe (241) to press against the output shaft (211) and the cutter shaft (230).
3. The simplified preparation device for food testing sample solution according to claim 1, characterized in that: A drain port (310) and a drain valve (400) are arranged on the lower side of the sample cup (300), the drain port (310) is communicated with the cavity of the sample cup (300), and the drain valve (400) is controlled to open and close through a drain valve control device (430).
4. A simple preparation device for food testing sample solution according to claim 3, characterized in that: The drain valve (400) includes a valve plate (410) and a valve rod (420), the valve plate (410) is inside the sample cup (300) and covers the drain port (310), the valve rod (420) is located under the valve plate (410) and passes through the lower side of the sample cup (30) and is connected to the drain valve control device (430).
5. The simplified preparation device for food testing sample solution according to claim 4, characterized in that: A bottom wall recess (301) is arranged on the bottom wall inside the sample cup (300), the drain port (310) is located on the bottom wall recess (301), and the valve plate (410) covers the bottom wall recess (301).
6. The simple preparation device for a food detection sample solution according to claim 4, wherein: A top cone (411) is arranged on the valve plate (410), when the sample cup (300) rises to the first position, the top cone (411) presses against the lower end of the cutter shaft (230).
7. A simple device for preparing a food detection sample solution according to claim 1, characterized in that: The lifting device (600) includes a lifting motor (610), a lifting guide rail (620), and a lifting frame (630). The lifting motor (610) is located on the upper side of the machine base (100). The lifting guide rail (620) extends vertically on the machine base (100). The lifting motor (610) has a lifting motor screw (611). The lifting motor screw (611) is threadedly connected to the lifting frame (630). The lifting frame (630) is connected to the sample cup (300). A lifting slider (631) is provided on the lifting frame (630), and the lifting slider (631) is slidably connected to the lifting guide rail (620).
8. The simplified preparation device for food testing sample solution according to claim 1, characterized in that: The cover closing device (500) comprises an upper cover frame (510) and a lower cover body (520). When the sample cup (300) rises to the first position, the lower cover body (520) covers the cup mouth of the sample cup (300).
9. The simplified preparation device for food testing sample solution according to claim 8, characterized in that: A cover frame (521) is provided on the lower side of the edge of the lower cover (520), and a cover cavity is formed between the lower cover (520) and the cover frame (521). When the sample cup (300) rises to the first position, the lower cover (520) and the cover frame (521) cover the cup mouth of the sample cup (300).
10. A simple preparation device for food detection sample solution according to claim 8, characterized in that: The upper cover frame (510) includes an upper cover plate (511) and an upper side enclosure plate (512), wherein the upper side enclosure plate (512) is connected to the upper side of the edge of the upper cover plate (511), and the liquid adding nozzle (530) is located on the upper cover plate (511). A cover frame cavity is formed between the upper cover plate (511) and the upper side enclosure plate (512), and an enclosure plate hole (513) is provided on the upper side enclosure plate (512) for the connecting pipe of the liquid adding nozzle (530) to extend out.