CN220559514U - Centrifugal device and laboratory automation sample pretreatment equipment - Google Patents

Abstract

The utility model relates to the technical field of centrifugal separation equipment, and particularly discloses a centrifugal device and laboratory automation sample pretreatment equipment, which comprises the following components: an inner cavity is formed in the case, the upper end of the case is rotationally connected with a case cover through a hinge, and a driving cavity is formed in the bottom end of the case; the rotary table is provided with a U-shaped groove, the inner wall of the U-shaped groove is provided with a groove, the bottom end of the rotary table is fixedly connected with a rotary shaft, and the rotary shaft is rotationally connected with the bottom surface of the inner cavity; the upper end of the base is fixedly connected with a connecting rod, the outer side of the upper end of the connecting rod is fixedly connected with a fixed shaft, the fixed shaft is rotationally connected with the groove, and a spring is arranged between the connecting rod and the side wall of the U-shaped groove, so that vibration of the turntable on the base and a sample test tube fixedly mounted on the base in acceleration and deceleration processes is reduced, and the centrifugal layering effect is improved; through the base structure of rotating the connection for sample test tube synchronous rotation when centrifugation and high-speed rotation, guarantee that centrifugal force is towards the test tube bottom all the time, avoid the sample to flow and produce secondary mixing.

Description

Centrifugal device and laboratory automation sample pretreatment equipment

Technical Field

The utility model relates to the technical field of centrifugal separation equipment, in particular to a centrifugal device and laboratory automation sample pretreatment equipment.

Background

The pretreatment of the sample means that interference factors in the detection in the sample are eliminated, the detected components are completely reserved, and the detected components are concentrated to obtain a reliable analysis result.

In the prior art, a strong centrifugal force is generated during high-speed rotation, so that components of a tested sample in a rotating body are settled due to different densities, and the components in the sample are layered, thereby being convenient for subsequent detection and use.

However, the conventional sample pretreatment centrifugation device adopts a vertical mounting structure, and performs centrifugation by placing a test tube in a mounting groove perpendicular to the test tube, so that sample liquid surface is obliquely attached to the side wall of the test tube during centrifugation, and the sample liquid surface is restored to a horizontal state from a centrifugal state during deceleration of the centrifuge, and in the process, a layered sample is easily subjected to secondary mixing through flowing, so that the centrifugal layering effect is reduced.

Disclosure of Invention

The present utility model is directed to a centrifugal device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a centrifuge device, the centrifuge device comprising:

the machine case is characterized in that an inner cavity is formed in the machine case, the upper end of the machine case is rotationally connected with a case cover through a hinge, and a driving cavity is formed in the bottom end of the machine case;

the rotary table is provided with a U-shaped groove, the inner wall of the U-shaped groove is provided with a groove, the bottom end of the rotary table is fixedly connected with a rotary shaft, and the rotary shaft is rotationally connected with the bottom surface of the inner cavity; and

The base, base upper end fixedly connected with connecting rod, connecting rod upper end outside fixedly connected with fixed axle, the fixed axle rotates with the recess to be connected.

Preferably, a motor is fixedly connected in the driving cavity, and a first bevel gear is fixedly connected to the output end of the motor.

Preferably, bearings are arranged on two sides of the joint of the rotating shaft and the bottom of the inner cavity, the bottom end of the rotating shaft is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

Preferably, the base upper end fixedly connected with two connecting rods, two connecting rod top fixedly connected with spacing ring.

Preferably, the base bottom fixedly connected with balancing weight.

Preferably, the shaft body of the fixed shaft is connected with a spring in a sliding manner, and the spring is positioned between the side wall of the U-shaped groove and the connecting rod.

Preferably, the number of the U-shaped grooves is six, and the U-shaped grooves are symmetrically distributed.

A laboratory automation sample pretreatment apparatus comprising the centrifugation device described above.

Compared with the prior art, the utility model has the beneficial effects that:

the springs are arranged between the connecting rods and the side walls of the U-shaped grooves, so that vibration generated to the base and the sample test tubes fixedly arranged on the base in the acceleration and deceleration processes of the turntable is reduced, and the centrifugal layering effect is improved; through the base structure of rotating the connection for when centrifuging and high-speed rotation, sample test tube synchronous rotation guarantees that centrifugal force is all the time towards the test tube bottom, avoids the sample to flow and produces secondary mixing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model in semi-section;

FIG. 2 is a top view of the turntable structure of the present utility model;

fig. 3 is an enlarged view of the area a in fig. 2.

In the figure: 1. a chassis; 2. a case cover; 3. a hinge; 4. an inner cavity; 5. a drive chamber; 6. a motor; 7. a first bevel gear; 8. a second bevel gear; 9. a rotating shaft; 10. a turntable; 11. a bearing; 12. a fixed shaft; 13. a connecting rod; 14. a limiting ring; 15. a base; 16. balancing weight; 17. a U-shaped groove; 18. a spring; 19. a groove.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Embodiment one:

referring to fig. 1-3, the present utility model provides a technical solution: a centrifugal apparatus, comprising: the novel multifunctional electric cabinet comprises a cabinet 1, wherein an inner cavity 4 is formed in the cabinet 1, the upper end of the cabinet 1 is rotatably connected with a cabinet cover 2 through a hinge 3, and a driving cavity 5 is formed in the bottom end of the cabinet 1; the rotary table 10, offer the U-shaped groove 17 on the rotary table 10, offer the recess 19 on the inner wall of U-shaped groove 17, the bottom fixedly connected with spindle 9 of the rotary table 10, the spindle 9 rotates with the bottom surface of the inner chamber 4 to connect; the base 15 is fixedly connected with the connecting rod 13 at the upper end of the base 15, the fixed shaft 12 is fixedly connected with the outer side of the upper end of the connecting rod 13, the fixed shaft 12 is rotationally connected with the groove 19, and the upper end of the base 15 is provided with a mounting groove; a laboratory automation sample pretreatment apparatus comprising the centrifugation device;

through the base 15 structure of rotating the connection for when centrifuging and high-speed rotation, sample test tube synchronous rotation guarantees that centrifugal force is all the time towards the test tube bottom, avoids the sample to flow and produces secondary mixing.

Embodiment two:

on the basis of the first embodiment, in order to drive the turntable 10 to rotate, a motor 6 is fixedly connected in the driving cavity 5, and the output end of the motor 6 is fixedly connected with a first bevel gear 7; bearings 11 are arranged on two sides of the joint of the rotating shaft 9 and the bottom of the inner cavity 4, the bottom end of the rotating shaft 9 is fixedly connected with a second bevel gear 8, and the second bevel gear 8 is meshed with the first bevel gear 7;

the rotating shaft 9 and the rotary table 10 are vertically limited by two bearings 11, and are driven by the motor 6, and the high-speed rotation of the rotating shaft 9 and the rotary table 10 is realized through the engagement of the first bevel gear 7 and the second bevel gear 8.

Embodiment III:

on the basis of the first embodiment, in order to improve the stability of the centrifuge during operation, the upper end of the base 15 is fixedly connected with two connecting rods 13, and a limiting ring 14 is fixedly connected above the two connecting rods 13; the bottom end of the base 15 is fixedly connected with a balancing weight 16; the shaft body of the fixed shaft 12 is connected with a spring 18 in a sliding manner, and the spring 18 is positioned between the side wall of the U-shaped groove 17 and the connecting rod 13; six U-shaped grooves 17 are symmetrically distributed;

the springs 18 are arranged between the connecting rods 13 and the side walls of the U-shaped grooves 17, so that vibration generated to the base 15 and the sample test tubes fixedly mounted on the base in the acceleration and deceleration processes of the turntable 10 is reduced, and the centrifugal layering effect is improved.

When the centrifugal layering device is in actual use, the box cover 2 is opened, a sample test tube is placed in an installation groove on the base 15, the sample test tube is prevented from toppling through the fixation of the limiting ring 14, the box cover 2 is closed again, the motor 6 is started, the high-speed rotation of the rotating shaft 9 and the rotating disc 10 is realized through the meshing of the first bevel gear 7 and the second bevel gear 8 driven by the motor 6, meanwhile, the vibration generated by the rotating disc 10 to the base 15 and the sample test tube fixedly installed on the base in the acceleration and deceleration processes is reduced through the spring 18 arranged between the connecting rod 13 and the side wall of the U-shaped groove 17, and the centrifugal layering effect is improved; through the base 15 structure of rotating the connection for when centrifuging and high-speed rotation, sample test tube rotates in step, guarantees that centrifugal force is towards the test tube bottom all the time, avoids the sample to flow and produces secondary mixing, and after the centrifugation is accomplished, open case lid 2, take out sample test tube.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A centrifugal device, characterized in that: the centrifugal device includes:

the novel multifunctional electric power box comprises a box (1), wherein an inner cavity (4) is formed in the box (1), a box cover (2) is rotatably connected to the upper end of the box (1) through a hinge (3), and a driving cavity (5) is formed in the bottom end of the box (1);

the rotary table (10), U-shaped grooves (17) are formed in the rotary table (10), grooves (19) are formed in the inner walls of the U-shaped grooves (17), a rotary shaft (9) is fixedly connected to the bottom end of the rotary table (10), and the rotary shaft (9) is rotationally connected with the bottom surface of the inner cavity (4); and

The base (15), base (15) upper end fixedly connected with connecting rod (13), connecting rod (13) upper end outside fixedly connected with fixed axle (12), fixed axle (12) and recess (19) rotate to be connected.

2. A centrifugal device according to claim 1, wherein: the driving cavity (5) is internally fixedly connected with a motor (6), and the output end of the motor (6) is fixedly connected with a first bevel gear (7).

3. A centrifugal device according to claim 2, wherein: the two sides of the joint of the rotating shaft (9) and the bottom of the inner cavity (4) are provided with bearings (11), the bottom end of the rotating shaft (9) is fixedly connected with a second bevel gear (8), and the second bevel gear (8) is meshed with the first bevel gear (7).

4. A centrifugal device according to claim 3, wherein: the upper end of the base (15) is fixedly connected with two connecting rods (13), and a limiting ring (14) is fixedly connected above the two connecting rods (13).

5. A centrifugal device according to claim 4, wherein: the bottom end of the base (15) is fixedly connected with a balancing weight (16).

6. A centrifugal device according to claim 5, wherein: the shaft body of the fixed shaft (12) is connected with a spring (18) in a sliding manner, and the spring (18) is positioned between the side wall of the U-shaped groove (17) and the connecting rod (13).

7. A centrifugal device according to claim 6, wherein: six U-shaped grooves (17) are symmetrically distributed.

8. A laboratory automation sample pretreatment apparatus, characterized in that: a centrifuge device comprising any of the above claims 1-7.