A rapid sample preparation device

Abstract

A rapid sample preparation device includes: a sample preparation container; a drive motor detachably connected to the top of the sample preparation container; a rotating shaft rotatably disposed inside the sample preparation container, the drive motor driving the rotating shaft to rotate; a polygonal prism fixedly connected to the bottom end of the rotating shaft; multiple collars slidably fitted onto the polygonal prism, each collar having a cutting blade circumferentially fixed to its top end; a polygonal block detachably connected to the bottom end of the polygonal prism; a top ring fixedly connected to the top end of the polygonal block, the inner diameter of the top ring being larger than the circumscribed circle diameter of the polygonal prism; and a locking member disposed at the bottom end of the polygonal prism for fixing the polygonal block to the bottom end of the polygonal prism. This invention features a novel structure and ingenious design. By selecting different ends of the collars for splicing, the distance between adjacent cutting blades can be flexibly adjusted, thereby adapting to different sample particle size requirements and improving the versatility of the device.

Description

Technical Field

[0001] This utility model relates to sample preparation equipment, specifically a rapid sample preparation device. Background Technology

[0002] In fields such as food testing and processing, it is often necessary to prepare food samples by cutting and crushing them into samples of specific particle sizes for subsequent analysis and processing. Therefore, food sample preparation equipment is an indispensable and important piece of equipment in related industries.

[0003] Currently, there are many types of food sample preparation equipment on the market, but some shortcomings still exist in actual use. For example, the cutting blade spacing of some sample preparation equipment is fixed and cannot be flexibly adjusted according to different sample particle size requirements, resulting in poor equipment versatility and difficulty in meeting diverse sample preparation requirements. In addition, the blades and blade shaft are generally fixed structures, and the multi-layered blades are very inconvenient to clean. On the one hand, cleaning is not thorough, and on the other hand, it may cut the hands, which is not conducive to use. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a rapid sample preparation device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0006] Sample preparation container;

[0007] A drive motor is detachably connected to the top of the sample preparation tank;

[0008] A rotating shaft is rotatably disposed inside the sample preparation container, and the drive motor is used to drive the rotating shaft to rotate;

[0009] A polygonal prism is fixedly connected to the bottom end of the rotating shaft;

[0010] Multiple collars are slidably fitted onto the polygonal prism, and a cutting blade is fixed circumferentially at the top of each collar;

[0011] Polyhedral blocks, detachably connected to the base of a polygonal prism;

[0012] A top ring is fixedly connected to the top of the polygonal block, and the inner diameter of the top ring is larger than the circumcircle diameter of the polygonal prism.

[0013] A locking element is provided at the bottom end of the polygonal prism to fix the polygonal block to the bottom end of the polygonal prism, so that the top ring presses against the bottommost collar.

[0014] The collar has a blade end for mounting the cutting blade and a splicing end for splicing with adjacent collars. The distance between adjacent cutting blades can be adjusted by selecting either the blade end or the splicing end of the collar for splicing.

[0015] Preferably, the two ends of the collar have the same structure, with one end having the cutting blade forming the blade end plane, and the other end being a flat splicing end.

[0016] Preferably, the locking element includes a screw fixed to the middle of the top of the polygonal block and a threaded hole opened at the middle of the bottom of the polygonal prism and cooperating with the screw.

[0017] Preferably, the drive motor is detachably connected to the top of the sample preparation container via a flange or quick-release connector.

[0018] Preferably, the rotating shaft is rotatably disposed at the top center of the sample preparation container via a bearing assembly.

[0019] Preferably, the cutting blade has a preset tilt angle relative to the axis of the collar.

[0020] Beneficial effects: Meets diverse sample preparation needs: By selecting different ends of the collar for splicing, the distance between adjacent cutting blades can be flexibly adjusted, thereby adapting to different sample particle size requirements and improving the versatility of the equipment.

[0021] High ease of operation: The sample preparation process is clear, and the steps from feeding, starting the drive motor to discharging are simple and easy to execute; and when it is necessary to adjust the blade spacing, maintain the equipment or clean the blades, the blades can be cleaned more thoroughly. The corresponding operations can be easily completed by disassembling the locking parts and removing the polygonal block and collar, which facilitates subsequent processing.

[0022] Ensuring cutting stability: The combination of multi-faceted blocks, locking components, and a top ring effectively tightens the collar, preventing it from loosening during operation, ensuring the stability of the cutting blade position, and guaranteeing the consistency and reliability of the cutting action. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure of A in the middle;

[0028] The following are the labels in the diagram: 1. Sample container; 2. Drive motor; 3. Shaft; 4. Polygonal prism; 5. Collar; 6. Hole; 7. Nut; 8. Top ring; 9. Screw; 10. Threaded hole. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0030] Example 1, by Figure 1-4 This utility model provides a rapid sample preparation device, comprising:

[0031] Sample preparation container 1;

[0032] The drive motor 2 is detachably connected to the top of the sample preparation container 1;

[0033] The rotating shaft 3 is rotatably disposed inside the sample preparation container 1, and the drive motor 2 is used to drive the rotating shaft 3 to rotate;

[0034] The polygonal prism 4 is fixedly connected to the bottom end of the rotating shaft 3;

[0035] Multiple collars 5 are slidably fitted onto the polygonal prism 4, and a cutting blade is fixed circumferentially at the top of each collar 5;

[0036] Polyhedral block 7 is detachably connected to the bottom of polygonal prism 4;

[0037] The top ring 8 is fixedly connected to the top of the polygonal block 7, and the inner diameter of the top ring 8 is larger than the outer diameter of the polygonal prism 4.

[0038] A locking element is provided at the bottom end of the polygonal prism 4 to fix the polygonal block 7 to the bottom end of the polygonal prism 4, so that the top ring 8 presses against the bottommost collar 5.

[0039] The collar 5 has a blade end for mounting the cutting blade and a splicing end for splicing with adjacent collars 5. The distance between adjacent cutting blades can be adjusted by selecting either the blade end or the splicing end of the collar 5 for splicing.

[0040] Sample preparation container 1: As the main frame of the equipment, it provides space for the installation and operation of other components, plays the role of accommodating and protecting the internal components, and is used for food testing sample preparation. The top and bottom of the sample preparation container 1 are respectively equipped with a feeding port and a discharging port, and control valves are installed on the feeding port and the discharging port.

[0041] Drive motor 2: It is detachably connected to the top of the sample preparation tank 1 (the detachable connection is achieved through a flange or quick-release joint). Its main function is to provide power for the rotation of the rotating shaft 3 and drive the rotating shaft 3 to rotate at a certain speed.

[0042] Rotating shaft 3: Rotatably disposed inside sample preparation container 1 (rotatably disposed at the top center of sample preparation container 1 via bearing assembly), rotates under the drive of drive motor 2, thereby driving the polygonal prism 4 connected to its bottom end to rotate.

[0043] Polygonal prism 4: Fixedly connected to the bottom end of the rotating shaft 3, used to install the collar 5. It rotates with the rotation of the rotating shaft 3, driving the collar 5 and the cutting blade to rotate together to achieve the cutting action.

[0044] Collar 5: Slidably fitted onto the polygonal prism 4, each collar 5 has a cutting blade circumferentially fixed at its top. The collar 5 has a blade end for mounting the cutting blade and a splicing end for joining adjacent collars 5. Both end faces have identical structures: one end has a cutting blade forming a blade end plane, and the other end is a flat splicing end. By selecting either the blade end or the splicing end of the collar 5 for splicing, the distance between adjacent cutting blades can be adjusted to meet different sample preparation requirements. The cutting blade has a preset tilt angle relative to the axis of the collar 5, which helps improve cutting efficiency and cutting quality.

[0045] Polygonal block 7: Detachably connected to the bottom of the polygonal prism 4, and cooperates with the locking component to fix the position of the collar 5.

[0046] Top ring 8: It is fixedly connected to the top of the polygonal block 7. The inner diameter of the top ring 8 is larger than the outer diameter of the polygonal prism 4. When the polygonal block 7 is fixed at the bottom of the polygonal prism 4, the top ring 8 can press the bottommost collar 5 to prevent the collar 5 from loosening during operation.

[0047] Locking component: Located at the bottom end of the polygonal prism 4, used to fix the polygonal block 7 to the bottom end of the polygonal prism 4. It includes a screw 9 fixed to the middle of the top of the polygonal block 7 and a threaded hole 10 opened at the middle of the bottom end of the polygonal prism 4 and cooperating with the screw 9. The fixed connection between the polygonal block 7 and the polygonal prism 4 is achieved through the cooperation of the screw 9 and the threaded hole 10.

[0048] Working Principle: When using this invention, before sample preparation, the distance between adjacent cutting blades needs to be adjusted by splicing the blade end or splicing end of the collar 5 according to the required particle size. Specifically, when splicing the blade end and splicing end, the distance between adjacent cutting blades is the length of the collar 5 itself; when splicing the splicing ends, the distance between adjacent cutting blades increases, thus meeting different sample particle size requirements. After adjusting the position of the collar 5, multiple collars 5 are sequentially placed on the polygonal prism 4, and then the polygonal block 7 is fixedly connected to the bottom end of the polygonal prism 4 using a locking device. At this time, the top ring 8 will press against the bottommost collar 5 to prevent the collar 5 from loosening during operation, ensuring the stability of the cutting blade position.

[0049] During sample preparation, first open the control valve of the feeding port at the top of the sample preparation container 1, and put the food to be sampled into the sample preparation container 1 through the feeding port. Then close the control valve of the feeding port. Start the drive motor 2. Since the drive motor 2 is detachably connected to the top of the sample preparation container 1 and connected to the rotating shaft 3, the drive motor 2 will drive the rotating shaft 3 to rotate inside the sample preparation container 1. The rotation of the rotating shaft 3 will drive the polygonal prism 4 fixedly connected to its bottom end to rotate together. The polygonal prism 4 will then drive the collar 5 sleeved on it and the cutting blade fixed to the circumferential direction at the top of the collar 5 to rotate.

[0050] The rotating cutting blades cut and break down the food inside the sample preparation container 1. Because the cutting blades have a preset tilt angle relative to the axis of the collar 5, this design helps improve cutting efficiency and quality, allowing the food to be quickly and uniformly cut into the desired particle size. During the cutting process, the sample preparation container 1, as the main frame of the equipment, provides a stable space for the entire cutting process, protecting the internal components from external interference.

[0051] After sample preparation is complete, turn off drive motor 2 to stop the cutting action. Open the control valve at the discharge port at the bottom of sample preparation barrel 1, and the cut and broken sample will be discharged from the discharge port, completing the entire sample preparation process. If another sample preparation is required, the above operation can be repeated; if it is necessary to change the spacing of the cutting blades or to perform equipment maintenance or clean the blades, the locking parts can be removed, and the polygonal block 7 and collar 5 can be removed for corresponding adjustments, replacements, or blade tilting.

[0052] Beneficial effects: Meeting diverse sample preparation needs: By selecting different ends of the collar 5 for splicing, the distance between adjacent cutting blades can be flexibly adjusted, thereby adapting to different sample particle size requirements and improving the versatility of the equipment.

[0053] Ensuring cutting stability: The combination of the multi-faceted block 7, the locking element, and the top ring 8 effectively presses the collar 5 to prevent it from loosening during operation, ensuring the stability of the cutting blade position and guaranteeing the consistency and reliability of the cutting action.

[0054] Improved cutting efficiency and quality: The cutting blade is set with a preset tilt angle relative to the axis of the collar 5, which helps to speed up the cutting speed and make the food cut more evenly, thus improving sample preparation efficiency and sample quality.

[0055] High ease of operation: The sample preparation process is clear, and the steps from feeding, starting the drive motor 2 to discharging are simple and easy to execute; and when it is necessary to adjust the blade spacing, maintain the equipment or clean the blades, the corresponding operations can be easily completed by disassembling the locking parts and removing the polygonal block 7 and collar 5, which facilitates subsequent processing.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid sample preparation device, characterized in that, include: Sample preparation container (1); A drive motor (2) is detachably connected to the top of the sample preparation container (1); A rotating shaft (3) is rotatably disposed inside the sample preparation container (1), and the drive motor (2) is used to drive the rotating shaft (3) to rotate; A polygonal prism (4) is fixedly connected to the bottom end of the rotating shaft (3); Multiple collars (5) are slidably fitted onto the polygonal prism (4), and a cutting blade is fixed circumferentially at the top of each collar (5); Polyhedral block (7) is detachably connected to the bottom of polyhedral prism (4); A top ring (8) is fixedly connected to the top of the polygonal block (7), and the inner diameter of the top ring (8) is larger than the outer diameter of the polygonal prism (4). A locking element is provided at the bottom end of the polygonal prism (4) to fix the polygonal block (7) to the bottom end of the polygonal prism (4), so that the top ring (8) presses against the bottommost collar (5); The collar (5) has a blade end for mounting the cutting blade and a splicing end for splicing with an adjacent collar (5). The distance between adjacent cutting blades can be adjusted by selecting the blade end or the splicing end of the collar (5) for splicing.

2. The rapid sample preparation device according to claim 1, characterized in that: The two ends of the collar (5) have the same structure. One end is provided with the cutting blade to form the blade end plane, and the other end is a flat splicing end.

3. The rapid sample preparation device according to claim 1, characterized in that: The locking component includes a screw (9) fixed to the middle of the top of the polygonal block (7) and a threaded hole (10) opened at the middle of the bottom of the polygonal prism (4) and cooperating with the screw (9).

4. The rapid sample preparation device according to claim 1, characterized in that: The drive motor (2) is detachably connected to the top of the sample preparation container (1) via a flange or quick-release connector.

5. The rapid sample preparation device according to claim 1, characterized in that: The rotating shaft (3) is rotatably disposed at the top center of the sample preparation container (1) via a bearing assembly.

6. The rapid sample preparation device according to claim 1, characterized in that: The cutting blade has a preset tilt angle relative to the axis of the collar (5).

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