CN216988106U

CN216988106U - Flexible centrifugal machine fixing frame

Info

Publication number: CN216988106U
Application number: CN202123383733.2U
Authority: CN
Inventors: 齐振普
Original assignee: Zhengzhou Dean Medical Laboratory Co ltd
Current assignee: Zhengzhou Dean Medical Laboratory Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-19
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a flexible centrifuge fixing frame which comprises a driving disc and a driven disc, wherein the driving disc is arranged on a main shaft of a centrifuge; a plurality of centrifuge tube fixing seats are uniformly distributed on the driven plate, elastic split clamping jaws are fixedly arranged in the centrifuge tube fixing seats, torsion springs are sleeved on the outer sides of the elastic split clamping jaws, one ends of the torsion springs are fixedly arranged on the side walls of the centrifuge tube fixing seats, and the other ends of the torsion springs are connected to the edge of the driving plate through torsion spring pull rods and fixing connecting rods; the inner diameter of the torsion spring in a free state is smaller than that of the elastic split clamping jaw in a free state; one end of the fixed connecting rod is fixedly arranged at the edge of the driving disc, and the other end of the fixed connecting rod is hinged with the torsion spring pull rod; the driven disc is provided with a plurality of elastic piles, the elastic piles are arranged on one side of the fixed connecting rod, and the fixed connecting rod can force the elastic piles to descend and rebound when rotating. The device improves the safety when the centrifuge stops rotating.

Description

Flexible centrifugal machine fixing frame

Technical Field

The utility model relates to the field of test equipment, in particular to a flexible centrifuge fixing frame.

Background

When carrying out biology and the relevant experiment of medical science and using the centrifuging tube, laboratory high speed centrifuge generally adopts the angle rotor, and it is time-consuming to change at every turn, needs to adopt the centrifuging tube of different specifications according to this experiment requirement of difference, and then need change the centrifuge mount of different specifications and play support and clamp tight effect when carrying out centrifugal operation, has wasted valuable operating time.

The utility model discloses application number 202023157926.1's utility model patent application discloses a centrifuge mount, through the elasticity split jack catch that designs into variable diameter with the part that will be used for the centre gripping centrifuging tube, can carry out centrifugal operation by the centrifuging tube of the different specifications of centre gripping. And the outer part of the elastic split clamping jaw is sleeved with a torsion spring, one end of the torsion spring is fixed, the other end of the torsion spring is linked on the driving disc through a torsion spring pull rod, each elastic split clamping jaw can be locked when the driving disc is opened to rotate, and the elastic split clamping jaw is ensured to be always kept in a locking state in the rotating process.

However, when the centrifuge stops rotating, the tension of the torsion spring is gradually lost, the clamping force of the centrifuge tube is gradually lost, the driving disc and the driven disc still keep high rotating speed under inertia, and therefore the centrifuge tube is thrown away from the elastic split clamping jaws.

In order to solve the above problems, people always seek an ideal technical solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a flexible centrifuge fixing frame.

In order to achieve the purpose, the utility model adopts the technical scheme that: a flexible centrifuge fixing frame comprises a driving disc and a driven disc, wherein the driving disc is installed on a main shaft of a centrifuge;

the centrifugal tube assembling device comprises a driving disc, a driven disc, a plurality of centrifugal tube fixing seats, elastic split clamping jaws, torsion springs and a torsion spring, wherein main shaft assembling holes are formed in the centers of the driving disc and the driven disc respectively;

the inner diameter of the torsion spring in a free state is smaller than that of the elastic split clamping jaw in a free state;

one end of the fixed connecting rod is fixedly arranged at the edge of the driving disc, and the other end of the fixed connecting rod is hinged with the torsion spring pull rod; the driven disc is provided with a plurality of elastic piles, the elastic piles are arranged on one side of the fixed connecting rod, and the fixed connecting rod can force the elastic piles to descend and rebound when rotating.

Based on the above, in order to realize that the driving disc prestrains the elasticity split jack catch when initial motion, the top of torsional spring is fixed on the lateral wall of centrifuging tube fixing base, the bottom mounting of torsional spring is in on the torsional spring pull rod.

Based on the above, the elastic split clamping jaw is made of a plastic material.

Based on the above, the bottom of the elastic pile is provided with the pressure spring.

Compared with the prior art, the flexible centrifugal machine fixing frame has substantive characteristics and progress, and particularly, one end of the torsion spring is fixed, the other end of the torsion spring is linked on the driving disc through the torsion spring pull rod and the fixing connecting rod, and the torsion spring can be pre-tensioned when the driving disc initially rotates. Simultaneously, set up the elasticity stake on one side of fixed connecting rod for when rotatory, the elasticity stake is in the opposite side of fixed connecting rod all the time, plays when centrifuge stops rotatory, can utilize the elasticity stake to block fixed connecting rod and retreat, and then makes the torsional spring pull rod that is in the same place with fixed connection taut torsional spring all the time, has improved the security when centrifuge stops rotatory.

Drawings

Fig. 1 is a schematic view of the overall structure of a flexible centrifuge fixing frame provided by the utility model.

Fig. 2 is a schematic view of a driven disk structure in a flexible centrifuge fixing frame provided by the utility model.

In the figure: 1. a driven plate; 2. a torsion spring pull rod; 3. an elastic split jaw; 4. fixing the connecting rod; 5. a torsion spring; 6. a driving disk; 7. an elastic pile.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments.

Example 1

The present embodiment provides a flexible centrifuge fixing frame, as shown in fig. 1 and 2, comprising a driving disk 6 mounted on a main shaft of a centrifuge and a driven disk 1 connected to the driving disk 6.

And main shaft assembling holes are formed in the centers of the driving disc 6 and the driven disc 1. And a plurality of centrifuge tube fixing seats are uniformly distributed on the driven disc 1.

All be fixed with elasticity split jack catch 3 in the centrifuging tube fixing base, 3 outside covers of elasticity split jack catch are equipped with torsional spring 5.

One end of the torsion spring 5 is fixedly arranged on the side wall of the centrifuge tube fixing seat, and the other end of the torsion spring 5 is connected to the edge of the driving disc 6 through the torsion spring pull rod 2 and the fixed connecting rod 4.

The inner diameter of the torsion spring 5 in a free state is smaller than that of the elastic split claw 3 in a free state.

One end of the fixed connecting rod 4 is fixedly arranged at the edge of the driving disc 6. The other end of the fixed connecting rod 4 is hinged with the torsion spring pull rod 2.

A plurality of elastic piles 7 are arranged on the driven disc 1, the elastic piles 7 are arranged on one side of the fixed connecting rod 4, and the fixed connecting rod 4 can force the elastic piles 7 to descend and rebound when rotating.

In order to realize that the driving disc prestretches the elasticity split jack catch when initial motion, the top of torsional spring 5 is fixed on the lateral wall of centrifuging tube fixing base, the bottom mounting of torsional spring 5 is in on the torsional spring pull rod 2.

The elastic split clamping jaw 3 is made of plastic. And a pressure spring is arranged at the bottom of the elastic pile 7.

When the centrifugal tube separating device is used, firstly, the torsion spring is in a free state, then a centrifugal tube to be centrifuged is inserted into the elastic split clamping jaws, and then the driving disc rotates relative to the driven disc so as to drive the torsion spring pull rod to strain the torsion spring and lock the centrifugal tube in the elastic split clamping jaws; simultaneously, rotatory and then drive the fixed connecting rod rotation along with the initiative dish, and then oppress the elastic pile and descend earlier the back and kick-back for when rotatory, the elastic pile is in the opposite side of fixed connecting rod all the time, plays when centrifuge stops rotatory, can utilize the elastic pile to block fixed connecting rod and retreat, and then makes the torsional spring of take-up all the time with the articulated torsional spring pull rod together of fixed connection, has improved the security when centrifuge stops rotatory.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. A flexible centrifuge fixing frame is characterized by comprising a driving disc and a driven disc, wherein the driving disc is installed on a main shaft of a centrifuge;

the centrifugal machine comprises a driving disc, a driven disc, a plurality of centrifugal tube fixing seats, elastic split clamping jaws, torsion springs and a torsion spring, wherein main shaft assembling holes are formed in the center of the driving disc and the center of the driven disc respectively;

2. The flexible centrifuge mount of claim 1 wherein the top end of the torsion spring is fixed to the sidewall of the centrifuge tube holder and the bottom end of the torsion spring is fixed to the torsion spring pull rod.

3. The flexible centrifuge mount of claim 2 wherein said resilient split jaws are plastic split jaws.

4. The flexible centrifuge mount of claim 3 wherein said spring posts are provided with compression springs at their bottoms.