A sample processing machine for measuring d-lactic acid content

Abstract

The utility model is used to biochemical detection equipment technical field, disclose a kind of sample processing machine for D-lactic acid content determination, including base, the lower end inside fixed mounting of base has center motor, and the output shaft upper end of center motor penetrates the upper surface of base, and the output shaft upper end of center motor is fixedly connected with center rod, the upper end of base is provided with centrifugal processing mechanism, and the change of component height is realized to sample piece and actual mixing and subsequent centrifugal processing by adjusting rotating speed cooperation.The sample processing machine for D-lactic acid content determination is driven to rotate by the meshing transmission of connecting gear and center gear, and the outer surface of one end of stirring rod located inside liquid storage pipe is uniformly provided with rod-shaped protrusion, can fully and efficiently realize the uniform mixing of sample and reagent, avoid the problem of incomplete reaction caused by insufficient mixing, guarantee the accuracy of subsequent D-lactic acid content determination from the root.

Description

Technical Field

[0001] This utility model relates to the field of biochemical detection equipment technology, specifically a sample processing machine for determining D-lactic acid content. Background Technology

[0002] In fields such as biochemistry, food testing, and pharmaceutical research and development, accurate determination of D-lactic acid content is of great significance for assessing product quality and monitoring physiological indicators. The accuracy and reliability of D-lactic acid content determination largely depend on the effectiveness of sample processing. Currently, existing sample processing equipment for D-lactic acid content determination has many shortcomings in key processing steps such as sample mixing and centrifugation. Some equipment has a single mixing function, which cannot fully achieve uniform mixing of samples and reagents, resulting in incomplete reactions and affecting the accuracy of subsequent measurements. At the same time, existing sample processing equipment usually separates mixing and centrifugation functions, which makes the operation process cumbersome and the equipment bulky, increasing operating costs and reducing work efficiency. Therefore, there is an urgent need for a sample processing device that can efficiently achieve sample mixing and centrifugation to meet the growing demand for D-lactic acid content determination. Utility Model Content

[0003] The purpose of this invention is to provide a sample processing machine for D-lactic acid content determination, in order to solve the problems mentioned in the background art, such as the existing sample processing equipment for D-lactic acid content determination having a single mixing function, uneven mixing of samples and reagents, insufficient reaction affecting the accuracy of determination, and the separate setting of mixing and centrifugation functions leading to cumbersome operation procedures, large equipment size, high operating costs, and low work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sample processing machine for D-lactic acid content determination, comprising a base, a central motor fixedly installed inside the lower end of the base, and the upper end of the output shaft of the central motor penetrating through the upper surface of the base, and a central rod fixedly connected to the upper end of the output shaft of the central motor; a centrifugal processing mechanism is provided at the upper end of the base, and the mixing of the sample with the actual sample and subsequent centrifugal processing are achieved by adjusting the rotation speed in conjunction with the change of component height; The centrifugal processing mechanism includes: an electric push rod, which is fixedly installed inside the upper end of the central rod, and the upper end of the electric push rod passes through the upper end of the central rod. A top frame is fixedly connected to the upper end of the electric push rod, and a central frame is fixedly connected to the lower end of the top frame. A rotating tilting frame is installed on the outer surface of the central frame, and a liquid storage tube is fixedly connected to one end of the tilting frame. An inlet is fixedly provided at one end of the liquid storage tube connected to the tilting frame, and an outlet is fixedly provided at the other end of the liquid storage tube. The centrifugal processing mechanism further includes: a positioning baffle, which is fixedly installed on the outer surface of the central frame, and a limit plate is fixedly installed on the outer surface of the tilting frame directly opposite the positioning baffle; a rotating connecting gear is installed on the outer surface of one end of the tilting frame, and a stirring rod is fixedly installed on the outer surface of the connecting gear; the other end of the stirring rod penetrates the inner surface of the liquid storage tube; a rotating ball is installed on the lower surface of the end of the liquid storage tube away from the central frame; a central gear is fixedly installed in the center of the upper surface of the base; and a guide groove is opened on the upper surface of the base.

[0005] Preferably, the base, the central rod, and the electric push rod are concentrically arranged, the lower end of the top frame is fixedly connected to the upper surface of the central frame, and the central frame is slidably connected to the central rod.

[0006] By adopting the above technical solution, the structural stability is ensured through concentric arrangement. The sliding connection between the central frame and the central rod, combined with the lifting and lowering of the electric push rod, allows for precise adjustment of the height of the centrifugal processing mechanism, enabling the switching between mixing and centrifugal states.

[0007] Preferably, the upper outer surface of the positioning baffle is in contact with the outer surface of one end of the limiting plate, and the positioning baffle is set vertically upward, and the positioning baffle and the limiting plate are designed to be perpendicular to each other.

[0008] By adopting the above technical solution, the horizontal angle of the liquid storage tube in the mixing state is precisely controlled by the fit and limit of the positioning baffle and the limiting plate, so as to ensure the stability of the liquid during the stirring process and avoid the mixing effect being affected by the tilt angle deviation.

[0009] Preferably, the connecting gear and the liquid storage tube are concentrically arranged, the connecting gear is meshed with the central gear, and the central gear is concentrically arranged with the base.

[0010] By adopting the above technical solution, the central gear is fixed and the connecting gear meshes with the central gear to make the stirring rod rotate synchronously when the liquid storage tube rotates, realizing a compound stirring motion of "revolution + rotation", which significantly improves the mixing uniformity of the sample and reagent.

[0011] Preferably, the stirring rod and the connecting gear are concentrically arranged, and the outer surface of the end of the stirring rod located inside the liquid storage tube is uniformly provided with rod-shaped protrusions.

[0012] By adopting the above technical solution, the concentric arrangement ensures the stability of the stirring rod rotation, and the rod-shaped protrusions increase the stirring area and liquid turbulence effect, further enhancing the mixing efficiency and avoiding the occurrence of stirring dead zones.

[0013] Preferably, the guide groove is circular and concentrically arranged with the base, and the outer surface of the ball is in contact with the inner surface of the guide groove.

[0014] By adopting the above technical solution, the circular guide groove and the ball ball cooperate to form a rolling support structure, which reduces frictional resistance when the liquid storage tube rotates. At the same time, the concentric design ensures the accuracy of the motion trajectory, making the mixing process more stable and reliable.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the sample processing machine for D-lactic acid content determination: 1. The stirring rod is driven to rotate by the meshing transmission of the connecting gear and the central gear. The outer surface of the end of the stirring rod located inside the liquid storage tube is uniformly provided with rod-shaped protrusions, which can fully and efficiently achieve uniform mixing of sample and reagent, avoid the problem of incomplete reaction due to insufficient mixing, and ensure the accuracy of subsequent D-lactic acid content determination from the root. 2. In the centrifugation process, the centrifugation mechanism drives the central rod to rotate via a central motor. In conjunction with the electric push rod, the height of components such as the top frame, central frame, and tilting frame can be adjusted flexibly, allowing the liquid storage tube to undergo centrifugation under the action of the tilting frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the central rod and the central frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the connection between the base, central gear, and guide groove of this utility model; Figure 5 This is a three-dimensional structural diagram of the connection between the central frame, the flipping frame, and the liquid storage tube of this utility model; Figure 6 This is a three-dimensional structural diagram of the overall working state of this utility model.

[0017] In the diagram: 1. Base; 2. Central motor; 3. Central rod; 4. Electric push rod; 5. Top frame; 6. Central frame; 7. Tilting frame; 8. Liquid storage pipe; 9. Liquid inlet; 10. Liquid outlet; 11. Positioning baffle; 12. Limiting plate; 13. Connecting gear; 14. Stirring rod; 15. Ball bearing; 16. Central gear; 17. Guide groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 This utility model provides a technical solution: a sample processing machine for determining D-lactic acid content.

[0020] Example 1: This example discloses: a base 1, a central motor 2 fixedly installed inside the lower end of the base 1, and the upper end of the output shaft of the central motor 2 penetrates through the upper surface of the base 1, and a central rod 3 is fixedly connected to the upper end of the output shaft of the central motor 2. A centrifugal processing mechanism is provided at the upper end of the base 1, and the mixing of the sample with the actual sample and subsequent centrifugal processing are achieved by adjusting the rotation speed in conjunction with the change of component height. The centrifugal processing mechanism includes: an electric push rod 4, which is fixedly installed inside the upper end of the central rod 3, and the upper end of the electric push rod 4 passes through the upper end of the central rod 3. A top frame 5 is fixedly connected to the upper end of the electric push rod 4, and a central frame 6 is fixedly connected to the lower end of the top frame 5. A rotating tilting frame 7 is installed on the outer surface of the central frame 6. A liquid storage pipe 8 is fixedly connected to one end of the tilting frame 7. An inlet 9 is fixedly provided at one end of the liquid storage pipe 8 connected to the tilting frame 7, and an outlet 10 is fixedly provided at the other end of the liquid storage pipe 8. The base 1, the central rod 3 and the electric push rod 4 are concentrically arranged. The lower end of the top frame 5 is fixedly connected to the upper surface of the central frame 6, and the central frame 6 is slidably connected to the central rod 3. During operation, the central motor 2 inside the lower end of the base 1 drives the central rod 3 to rotate, which in turn drives the entire centrifugal processing mechanism to rotate. The electric push rod 4 adjusts the height of the top frame 5 and the central frame 6, causing the liquid storage tube 8 to rise. When the speed increases, the material injected into the liquid storage tube 8 through the liquid inlet 9 achieves solid-liquid separation under the action of centrifugal force. The separated liquid is discharged through the liquid outlet 10. This synergistic effect of adjusting the speed and component height effectively completes the integrated operation of mixing and centrifugal processing.

[0021] Example 2: This example discloses, based on Example 1, that the centrifugal processing mechanism further includes: a positioning baffle 11, which is fixedly installed on the outer surface of the central frame 6, and a limiting plate 12 is fixedly installed on the outer surface of the flipping frame 7 directly opposite the positioning baffle 11. A rotating connecting gear 13 is installed on the outer surface of one end of the flipping frame 7, and one end of a stirring rod 14 is fixedly installed on the outer surface of the connecting gear 13. The other end of the stirring rod 14 penetrates the inner surface of the liquid storage tube 8. A rotating ball bearing 15 is installed on the lower surface of the end of the liquid storage tube 8 away from the central frame 6. A central gear 16 is fixedly installed in the middle of the upper surface of the base 1, and a guide groove 17 is opened on the upper surface of the base 1. The upper outer surface of the positioning baffle 11 is in contact with the outer surface of one end of the limiting plate 12, and the positioning baffle 11 is set vertically upward, and the positioning baffle 11 and the limiting plate 12 are designed to be perpendicular to each other. The connecting gear 13 and the liquid storage tube 8 are concentrically arranged, and the connecting gear 13 is meshed with the central gear 16, and the central gear 16 is concentrically arranged with the base 1; The stirring rod 14 and the connecting gear 13 are concentrically arranged, and rod-shaped protrusions are evenly arranged on the outer surface of the end of the stirring rod 14 located inside the liquid storage tube 8; The guide groove 17 is circular and is concentric with the base 1. The outer surface of the ball 15 is in contact with the inner surface of the guide groove 17. When the central motor 2 drives the central rod 3 to rotate the entire centrifugation mechanism at low speed, the electric push rod 4 retracts, causing the central frame 6 to descend. The tilting frame 7 gradually rotates relative to the tilting frame 7 until the liquid storage tube 8 is kept horizontal. At this time, the connecting gear 13 meshes with the fixed central gear 16 for transmission. During this process, the connecting gear 13 drives the stirring rod 14 to rotate inside the liquid storage tube 8. The rod-shaped protrusions on its surface form a strong stirring of the material, so that the sample and reagent are fully mixed before centrifugation. When the liquid storage tube 8 is tilted until the positioning baffle 11 and the limiting plate 12 are in contact, the liquid storage tube 8 reaches a horizontal state. At this time, the ball bearing 15 at the bottom of the liquid storage tube 8 rolls along the guide groove 17, which supports the rotation of the liquid storage tube 8 and ensures that the mixing process is stable.

[0022] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample processing machine for determining D-lactic acid content, comprising a base (1), wherein a central motor (2) is fixedly installed inside the lower end of the base (1), and the upper end of the output shaft of the central motor (2) penetrates the upper surface of the base (1), and a central rod (3) is fixedly connected to the upper end of the output shaft of the central motor (2), characterized in that: The upper end of the base (1) is provided with a centrifugal processing mechanism, which can achieve the mixing of the sample with the actual sample and subsequent centrifugal processing by adjusting the rotation speed in conjunction with the change of component height; The centrifugal processing mechanism includes: an electric push rod (4), which is fixedly installed inside the upper end of the central rod (3), and the upper end of the electric push rod (4) passes through the upper end of the central rod (3). A top frame (5) is fixedly connected to the upper end of the electric push rod (4), and a central frame (6) is fixedly connected to the lower end of the top frame (5). A rotating flipping frame (7) is installed on the outer surface of the central frame (6), and a liquid storage pipe (8) is fixedly connected to one end of the flipping frame (7). An inlet (9) is fixedly provided at one end of the liquid storage pipe (8) connected to the flipping frame (7), and an outlet (10) is fixedly provided at the other end of the liquid storage pipe (8).

2. The sample processing machine for determining D-lactic acid content according to claim 1, characterized in that: The centrifugal processing mechanism further includes: a positioning baffle (11), which is fixedly installed on the outer surface of the central frame (6), and a limiting plate (12) is fixedly installed on the outer surface of the flipping frame (7) directly opposite the positioning baffle (11). A rotating connecting gear (13) is installed on the outer surface of one end of the flipping frame (7), and one end of a stirring rod (14) is fixedly installed on the outer surface of the connecting gear (13). The other end of the stirring rod (14) penetrates the inner surface of the liquid storage tube (8). A rotating ball bearing (15) is installed on the lower surface of the end of the liquid storage tube (8) away from the central frame (6). A central gear (16) is fixedly installed in the middle of the upper surface of the base (1), and a guide groove (17) is opened on the upper surface of the base (1).

3. The sample processing machine for determining D-lactic acid content according to claim 1, characterized in that: The base (1), the central rod (3) and the electric push rod (4) are arranged concentrically. The lower end of the top frame (5) is fixedly connected to the upper surface of the central frame (6), and the central frame (6) is slidably connected to the central rod (3).

4. A sample processing machine for determining D-lactic acid content according to claim 2, characterized in that: The upper outer surface of the positioning baffle (11) is in contact with the outer surface of one end of the limiting plate (12), and the positioning baffle (11) is set vertically upward, and the positioning baffle (11) and the limiting plate (12) are designed to be perpendicular to each other.

5. A sample processing machine for determining D-lactic acid content according to claim 2, characterized in that: The connecting gear (13) and the liquid storage tube (8) are concentrically arranged, and the connecting gear (13) is meshed with the central gear (16), and the central gear (16) is concentrically arranged with the base (1).

6. A sample processing machine for determining D-lactic acid content according to claim 2, characterized in that: The stirring rod (14) and the connecting gear (13) are concentrically arranged, and rod-shaped protrusions are uniformly arranged on the outer surface of one end of the stirring rod (14) inside the liquid storage tube (8).

7. A sample processing machine for determining D-lactic acid content according to claim 2, characterized in that: The guide groove (17) is circular and is concentric with the base (1). The outer surface of the ball (15) is in contact with the inner surface of the guide groove (17).

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