CN212820509U

CN212820509U - Micro horizontal rotor of centrifugal machine

Info

Publication number: CN212820509U
Application number: CN202020813539.XU
Authority: CN
Inventors: 徐峰; 武育荣; 黎沐林; 魏强
Original assignee: Changsha High New Technology Industrial Development Zone Xiangyi Centrifuge Instrument Co ltd
Current assignee: Changsha High New Technology Industrial Development Zone Xiangyi Centrifuge Instrument Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-30
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a horizontal rotor of centrifuge trace, including installing rotor block on driving motor, establishing a plurality of rotatable test tubes around the rotor block through the pivot and hanging cup and test tube string cup's return torsional spring, the test tube is hung the cup and is established on the pivot through the hangers cover, and when the test tube is hung the cup and is in vertical state the edge of hangers and the excircle contact of rotor block to it remains vertical to make the test tube hang the cup when static. The utility model discloses the during operation, biochemical sample is behind the centrifuge inner separation, can rely on the torsion that resets that the torsional spring provided to hang cup automatic re-setting to vertical state with the test tube.

Description

Micro horizontal rotor of centrifugal machine

Technical Field

The utility model belongs to centrifuge, concretely relates to centrifuge trace horizontal rotor.

Background

The centrifugal machine is an instrument which accelerates the sedimentation velocity of particles in liquid by utilizing the strong centrifugal force generated by the high-speed rotation of a rotor and separates substances with different sedimentation coefficients and buoyancy densities in a sample, and is widely applied to the fields of life science, medicine, chemistry, environmental protection and the like. The rotary head of the centrifugal machine is divided into an angle rotary head and a horizontal rotary head. The centrifuging tube central line and the rotation axis of angle bull head become fixed angle, and horizontal bull head is because the effect of centrifugal force when the separation, and the cup is hung to the test tube is close perpendicular with rotor spindle angle, and when the rotational speed reduced or no rotational speed, under the effect of gravity, the cup is hung to the test tube of horizontal bull head and rotor spindle angle is parallel.

Along with the development of science and technology, the automation of biochemical sample pretreatment is gradually applied, and the horizontal rotor carried by the centrifuge must be reset to a vertical state after the centrifugation is finished so as to be grabbed by the manipulator by depending on the operation mode of the existing manipulator.

The horizontal rotary head of the conventional centrifugal machine is large, the test tube hanging cup is heavy, and after centrifugation is completed, the friction force at the rotating shaft of the test tube hanging cup can be easily overcome by means of the gravity of the test tube hanging cup, so that the centrifugal machine is reset to a vertical state. However, for some horizontal rotors for micro separation, such as PCR and capillary separation, because the tube hanging cup is very small, the tube hanging cup is difficult to return to the vertical state by its own weight after the separation of the sample. Secondly, the test tube cannot be reset to a vertical state after separation is finished, so that secondary suspension of a sample is likely to be caused, and sample separation failure is likely to be caused.

Therefore, on the premise of automation of pretreatment of biochemical samples, the micro horizontal rotor of the centrifuge is reset, which is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifuge trace horizontal rotor that can automatic re-setting.

Realize the utility model discloses the technical scheme that the purpose was adopted as follows:

the utility model provides a horizontal rotor of centrifuge trace, hang cup and test tube including installing rotor block on driving motor, establishing a plurality of rotatable test tubes around the rotor block through the pivot and hang the return torsional spring of cup, the test tube is hung the cup and is established on the pivot through the hangers cover, and when the test tube is hung the cup and is in vertical state the edge of hangers and the excircle contact of rotor block to it remains vertical when static to make the test tube hang the cup.

The test tube hanging cup is provided with two hanging lugs, and when the test tube hanging cup is in a vertical state, the edge of at least one hanging lug is in contact with the outer circle of the lower part of the rotor body.

Advantageous effects

The utility model discloses the during operation, biochemical sample is after the centrifuge inner separation, and the torsion that resets that can rely on the torsional spring to provide hangs cup automatic re-setting to vertical state with the test tube to supply the manipulator to snatch. The centrifugal machine can be simultaneously suitable for low-speed and high-speed centrifuges, and is suitable for the fields of automation and non-automation.

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a top partial enlarged view of the present invention.

Fig. 3 is a partial sectional view of the present invention.

In the figure: 1. rotor body upper portion, 2, rotor body lower part, 3, driving motor, 4, lock nut, 5, return torsional spring, 6, pivot, 7, test tube hanging cup, 701, hangers, 8, test tube, an, the edge.

Detailed Description

See fig. 1-fig. 3, the utility model provides a horizontal rotor of centrifuge trace, including the rotor block, the rotor block passes through lock nut 4 to be installed on driving motor 3, be equipped with a plurality of rotatable test tubes around the rotor block and hang cup 7 and test tube and hang cup 7's return torsional spring 5 through pivot 6, the rotor block assembles an organic wholely by rotor block upper portion 1 and rotor block lower part 2, pivot 6 is established between rotor block upper portion 1 and rotor block lower part 2, test tube hangs cup 7 and establishes on pivot 6 through hangers 701 cover, 5 covers of return torsional spring are established on pivot 6, the both ends of return torsional spring 5 are hung respectively on rotor block lower part 2 and test tube hangers 701 of cup 7, test tube 8 is placed in test tube hangers cup 7 for the container of splendid attire sample.

Referring further to fig. 2, the test tube hanging cup 7 is provided with two hanging lugs 701, the return torsion spring 5 is sleeved on the shaft pin 6 between the two hanging lugs 701, and when the test tube hanging cup 7 is in a vertical state, the edge a of at least one hanging lug 701 is in contact with the outer circle of the lower part 2 of the rotor body, so that the test tube hanging cup 7 is kept vertical when being static.

Referring further to fig. 3, a groove matched with the shaft pin 6 is milled in the lower portion 2 of the rotor body, the shaft pin 6 is installed in the groove, the test tube hanging cup 7 and the return torsion spring 5 are installed on the shaft pin 6, and the test tube hanging cup 7 can freely rotate around the shaft pin 6.

When the horizontal rotor is driven to rotate by the driving motor 3, the test tube hanging cup 7 overcomes the automatic gravity and the torsion of the return torsion spring 5 due to the centrifugal force, and the vertical state is gradually changed into the horizontal state.

When the rotating speed of the horizontal rotor is gradually reduced until the rotating speed is 0, the test tube hanging cup 7 overcomes the friction force between the test tube hanging cup 7 and the shaft pin 6 under the action of gravity and the return torsion spring 5, and is restored to the vertical state, and the absolute position of the vertical state is ensured by the limit of the edge a of the hanging lug 701 of the test tube hanging cup 7 and the excircle of the rotor body.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a horizontal rotor of centrifuge trace, characterized by is including installing the rotor block on driving motor, establishing a plurality of rotatable test tubes around the rotor block through the pivot and hanging the cup and the return torsional spring of cup is hung to the test tube, the cup is hung to the test tube overlaps on the pivot through the hangers, and when the cup is hung to the test tube when vertical state the edge of hangers and the excircle contact of rotor block to make the test tube hang the cup and keep vertical when static.

2. The micro horizontal rotor of claim 1, wherein the rotor body is integrally assembled from an upper portion of the rotor body and a lower portion of the rotor body, the shaft pin is disposed between the upper portion of the rotor body and the lower portion of the rotor body, the test tube hanging cup is provided with two hanging lugs, and an edge of at least one of the hanging lugs contacts an outer circumference of the lower portion of the rotor body when the test tube hanging cup is in a vertical state.