Sample preparation device for food safety detection

Abstract

The utility model relates to the technical field of food detection, and discloses a sample preparation device for food safety detection, which comprises a tank body and a crushing component movably arranged on the inner side of the tank body, a liquid discharge pipe is arranged on the lower part of the side surface of the tank body, and a valve is arranged on the liquid discharge pipe; a cover plate is movably arranged at the top of the filter cartridge; a transverse plate for mounting a crushing assembly is movably arranged at the top of the tank body; the smashing assembly comprises a motor installed on the top of the transverse plate, an output shaft of the motor is connected with a transmission column through a coupler, the bottom of the transmission column is movably connected with a center shaft, smashing cutters are installed on the center shaft, and stirring blades are symmetrically installed on the two sides of the transmission column. The whole sample preparation process is completed in the tank body, convenience and rapidness are achieved, samples do not need to be transferred, the risk that the samples are polluted is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, in particular to a sample preparation device for food safety detection. Background Art

[0002] Food safety testing is the process of inspecting food for harmful substances, microorganisms, additives, and nutrients to ensure food safety, quality, and compliance with relevant regulations and standards. Food safety testing is crucial for protecting consumer health, maintaining market order, and promoting food trade.

[0003] Testing solid foods typically requires pulverizing the sample before adding a solvent, which extracts the target analytes from the sample for subsequent analysis. Currently, when preparing samples for solid food testing, the pulverized sample must be removed from the pulverizer and placed in a test tube, to which an appropriate amount of solvent is then added. This separate pulverization and solvent addition process is inefficient and poses a risk of contamination during sample transfer. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the existing sample preparation device, pulverization and solvent addition need to be performed separately, which is inefficient and increases the risk of sample contamination.

[0005] In order to solve the above problems, the technical solution of the utility model is as follows: a sample preparation device for food safety testing, comprising a tank body and a crushing assembly movably arranged inside the tank body, a drain pipe is provided at the lower part of the side of the tank body, and a valve is installed on the drain pipe:

[0006] A filter cartridge is installed on the bottom surface of the tank body, a cover plate is movably provided on the top of the filter cartridge, and a horizontal plate for installing a crushing assembly is movably provided on the top of the tank body;

[0007] The crushing assembly includes a motor installed on the top of the horizontal plate, the output shaft of the motor is connected to a transmission column through a coupling, the bottom of the transmission column is movably connected to a central shaft, a crushing knife is installed on the central shaft, and stirring blades are symmetrically installed on both sides of the transmission column.

[0008] Furthermore, flanges are fixedly connected to both ends of the filter cartridge, and one flange is mounted on the bottom surface of the tank body by screws.

[0009] Furthermore, the cover plate is provided with a plurality of through holes, and a plurality of limiting columns are fixedly connected to the bottom edge thereof, and the limiting columns are inserted into the through holes on the flange.

[0010] Furthermore, upper ear plates are fixed at both ends of the horizontal plate, and a threaded rod is fixed at the bottom of the upper ear plate. Lower ear plates are symmetrically fixed to the upper side of the tank body. A mounting hole is opened in the middle of the lower ear plate, and a nut is installed after one end of the threaded rod passes through the mounting hole.

[0011] Furthermore, a controller is installed on the top of the horizontal plate on one side of the motor.

[0012] Furthermore, a connecting column is fixedly connected to the top of the central axis, and the connecting column is a hexagonal column.

[0013] Furthermore, the transmission column is penetrated and rotatably mounted on the cover plate. The transmission column is composed of two cylinders, one smaller on the upper right and one larger on the lower right, and a socket adapted to the connecting column is provided at the bottom of the transmission column.

[0014] Furthermore, a positioning cylinder adapted to the central axis is fixedly connected to the center of the bottom surface of the tank body.

[0015] The advantages of this utility model over existing technologies are that the motor drives the central shaft to rotate via the transmission column, which in turn drives the pulverizer to pulverize the sample. Solvent is added to the tank, and the transmission column drives the stirring blades to rotate, stirring the solvent and accelerating the dissolution of the food sample. Sample residue is retained within the filter cartridge by the action of the filter cartridge, and the prepared sample can be discharged for testing through the drain pipe. By completing the entire sample preparation process within the tank, this utility model is convenient and quick, and eliminates the need for sample transfer, reducing the risk of sample contamination and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the present utility model.

[0018] Figure 3 It is a cross-sectional view of the connection structure of the central axis of the utility model.

[0019] As shown in the figure: 1. Tank body; 2. Drain pipe; 3. Filter cartridge; 4. Cover plate; 5. Horizontal plate; 6. Motor; 7. Transmission column; 8. Center shaft; 9. Crushing knife; 10. Stirring blade; 11. Limiting column; 12. Upper ear plate; 13. Threaded rod; 14. Lower ear plate; 15. Controller; 16. Connecting column; 17. Positioning cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 2 As shown, a sample preparation device for food safety testing includes a tank body 1 and a crushing assembly movably arranged on the inner side of the tank body 1, a drain pipe 2 is provided at the lower part of the side of the tank body 1, a valve is installed on the drain pipe 2, a filter cartridge 3 is installed on the inner bottom surface of the tank body 1, both ends of the filter cartridge 3 are fixedly connected to flanges, and a flange is installed on the inner bottom surface of the tank body 1 by screws, a cover plate 4 is provided above the filter cartridge 3, a plurality of through holes are opened on the cover plate 4, and a plurality of limit columns 11 are fixedly connected at the bottom edge thereof, and the limit columns 11 are inserted into the through holes on the flange.

[0022] The arrangement of the filter cartridge 3 and the cover plate 4 can limit the sample to prevent the sample from moving to the outside of the filter cartridge 3. When the cover plate 4 is covered, the limiting column 11 is inserted into the through hole on the flange, which can prevent the filter cartridge 3 and the cover plate 4 from rotating relative to each other.

[0023] A horizontal plate 5 for installing a crushing assembly is movably provided on the top of the tank body 1. Upper ear plates 12 are fixedly connected at both ends of the horizontal plate 5, and a threaded rod 13 is fixedly connected to the bottom of the upper ear plate 12. Lower ear plates 14 are symmetrically fixed to the upper side of the tank body 1. A mounting hole is provided in the middle of the lower ear plate 14. One end of the threaded rod 13 is passed through the mounting hole and a nut is installed thereafter. A controller 15 is installed on the top of the horizontal plate 5 on one side of the motor 6.

[0024] The transverse plate 5 is mounted on the top of the tank body 1 , and the threaded rod 13 is inserted into the mounting hole, and then a nut is installed on the threaded rod 13 to achieve the installation and fixation of the transverse plate 5 .

[0025] like Figure 2 and Figure 3 As shown, the crushing assembly includes a motor 6 installed on the top of the horizontal plate 5, the output shaft of the motor 6 is connected to the transmission column 7 through a coupling, a central shaft 8 is provided below the transmission column 7, a positioning cylinder 17 adapted to the central shaft 8 is fixedly connected at the center of the inner bottom surface of the tank body 1, a hexagonal connecting column 16 is fixedly connected to the top of the central shaft 8, the transmission column 7 passes through and is rotatably installed on the cover plate 4, the transmission column 7 is composed of two cylinders, a smaller one on the upper right and a larger one on the lower, and a socket adapted to the connecting column 16 is provided at the bottom of the transmission column 7, a crushing knife 9 is installed on the central shaft 8, and stirring blades 10 are symmetrically installed on both sides of the transmission column 7.

[0026] The motor 6 drives the central shaft 8 to rotate through the transmission column 7, and the central shaft 8 drives the crushing knife 9 to rotate to crush the sample. The transmission column 7 drives the stirring blade 10 to rotate to stir the solvent.

[0027] In specific use, the central axis 8 is inserted into the positioning cylinder 17, the food sample is added to the inner side of the filter cylinder 3, the cross plate 5 is installed on the top of the tank body 1, and the connecting column 16 is inserted into the jack at the bottom of the transmission column 7, and the limiting column 11 at the bottom of the cover plate 4 is inserted into the through hole on the flange, and the threaded rod 13 at the bottom of the upper ear plate 12 is inserted into the mounting hole on the lower ear plate 14, and then the nut is installed on the threaded rod 13 and tightened, and the motor 6 is turned on by the controller 15 to achieve the crushing of the sample. Add solvent to the tank body 1, turn on the motor 6 again by the controller 15, and adjust the motor 6 to a suitable speed. The stirring blade 10 can stir the solvent to accelerate the dissolution of the food sample. The residue of the sample is retained inside the filter cylinder 3 under the action of the filter cylinder 3. Open the valve and the prepared sample can be discharged for detection through the drain pipe 2.

[0028] The undisclosed parts in the present invention are all prior art, and their specific structures and working principles are not described in detail here.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0031] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A sample preparation device for food safety testing, comprising a tank body (1) and a crushing assembly movably arranged inside the tank body (1), wherein a drain pipe (2) is provided at the lower side of the tank body (1), and characterized in that: A filter cartridge (3) is installed on the inner bottom surface of the tank body (1), a cover plate (4) is movably provided on the top of the filter cartridge (3), and a horizontal plate (5) for installing a crushing assembly is movably provided on the top of the tank body (1); The crushing assembly comprises a motor (6) mounted on the top of a horizontal plate (5); an output shaft of the motor (6) is connected to a transmission column (7) via a coupling; a central shaft (8) is movably connected to the bottom of the transmission column (7); a crushing blade (9) is mounted on the central shaft (8); and stirring blades (10) are symmetrically mounted on both sides of the transmission column (7).

2. A sample preparation device for food safety testing according to claim 1, characterized in that: Both ends of the filter cartridge (3) are fixedly connected with flanges, and one flange is mounted on the inner bottom surface of the tank body (1) by screws.

3. A sample preparation device for food safety testing according to claim 2, characterized in that: The cover plate (4) is provided with a plurality of through holes, and a plurality of limiting columns (11) are fixedly connected to the bottom edge thereof, and the limiting columns (11) are inserted into the through holes on the flange.

4. A sample preparation device for food safety testing according to claim 1, characterized in that: The two ends of the transverse plate (5) are fixedly connected to upper ear plates (12), and the bottom of the upper ear plate (12) is fixedly connected to a threaded rod (13). The upper side of the tank body (1) is symmetrically fixedly connected to a lower ear plate (14). A mounting hole is provided in the middle of the lower ear plate (14), and one end of the threaded rod (13) passes through the mounting hole and is then installed with a nut.

5. The sample preparation device for food safety testing according to claim 1, characterized in that: A controller (15) is installed on the top of the transverse plate (5) at one side of the motor (6).

6. A sample preparation device for food safety testing according to claim 1, characterized in that: A connecting column (16) is fixedly connected to the top of the central shaft (8), and the connecting column (16) is a hexagonal column.

7. A sample preparation device for food safety testing according to claim 6, characterized in that: The transmission column (7) is passed through and rotatably mounted on the cover plate (4). The transmission column (7) is composed of two cylinders, one smaller on the upper right and one larger on the lower. A socket adapted to the connecting column (16) is provided at the bottom of the transmission column (7).

8. The sample preparation device for food safety testing according to claim 1, characterized in that: A positioning cylinder (17) adapted to the central axis (8) is fixedly connected to the center of the inner bottom surface of the tank body (1).

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