Biological reagent centrifugal machine

Abstract

The utility model provides a biological reagent centrifugal machine, and belongs to the technical field of centrifugal machines. The biological reagent centrifugal machine comprises a machine frame, a driving part and a rotating disc with a weighing function, the driving part drives the rotating disc to rotate, test tubes are connected to the rotating disc in an inserted mode, a balance weight part is rotationally connected to the machine frame, and the balance weight part is connected with the rotating disc through a clutch type shaft. In the application, the turntable is utilized to weigh the test tube so as to determine the position where the weight needs to be weighted, and the driving piece is utilized to drive the turntable to rotate to the appointed position to be integrated with the weight balancing piece, so that the weight balancing is completed, the effect of automatic weight balancing is realized, and manual operation is not needed.

Description

Technical Field

[0001] The present application relates to the technical field of centrifuges, and in particular to a biological reagent centrifuge. Background Art

[0002] The centrifuge rotates the material at high speed, causing it to be layered according to different densities. The liquid with high density sinks to the bottom layer, and the liquid with low density floats to the upper layer, thereby separating the materials to obtain the required pure substance.

[0003] In this regard, Chinese patent application number CN202221632947.0 discloses a centrifugal device for biological reagents. The solution mainly achieves dynamic balance by injecting water into a designated balance block, thereby improving the stability of the centrifugal operation.

[0004] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0005] A cover is provided under the balance block for draining the water in the balance block. Therefore, when the number and position of the reagent bottles change, it is necessary to manually drain the water in all the balance blocks, and then re-weigh and refill them, which is very troublesome. Utility Model Content

[0006] In order to make up for the above shortcomings, the present application provides a biological reagent centrifuge, aiming to improve the problems mentioned in the above background technology.

[0007] An embodiment of the present application provides a biological reagent centrifuge, including a frame, a driving member and a turntable with a weighing function, wherein the driving member drives the turntable to rotate, a test tube is inserted into the turntable, a counterweight is rotatably connected to the frame, and the counterweight is connected to the turntable in a clutchable shaft.

[0008] In a specific embodiment, the turntable includes a disk base, and a cantilever beam type weighing sensor is installed around the disk base.

[0009] In the above implementation, cantilever beam sensors are used as spokes and are also used to measure the weight of each test tube in order to control the counterweight.

[0010] In a specific embodiment, the outer end of the sensor is fixedly connected to a tube sleeve, and the test tube is movably inserted into the tube sleeve.

[0011] In the above implementation process, the tube sleeve is used for inserting the test tube, facilitating the installation of the test tube and observing the centrifugation of the biological reagent at the lower end of the test tube.

[0012] In a specific embodiment, the counterweight comprises a rotating arm, the inner end of the rotating arm is rotatably connected to the frame, and the outer end of the rotating arm is fixedly connected to a counterweight block.

[0013] In the above implementation process, the rotating arm with the counterweight block can rotate freely without contacting the disc seat to achieve the transfer of the center of gravity.

[0014] In a specific implementation manner, a pin rod is fixedly connected to the upper end surface of the rotating arm, and an array of pin grooves matching the pin rod is formed on the lower end surface of the disc seat.

[0015] In the above implementation process, when the disc seat moves down and fits against the end face of the rotating arm, the pin rod on the rotating arm is embedded in the pin groove on the disc seat, and the rotating arm rotates together with the disc seat, thereby helping the disc seat to adjust its center of gravity.

[0016] In a specific embodiment, the driving member includes a servo-controlled motor, the output shaft of the motor is connected to the disc seat shaft, the output shaft of the motor is prismatic and hollow, a prismatic rod is inserted through the output shaft of the motor, and the prismatic rod is fixedly connected to the disc seat.

[0017] In the above implementation process, the motor drives the edge rod to rotate, and then drives the turntable and the test tube to rotate to achieve centrifugal effect. At the same time, the turntable can move up and down to achieve the clutch of the turntable and the counterweight, thereby adjusting the center of gravity. In this embodiment, the counterweight is always in the initial position. After the motor rotates with the turntable and the counterweight, it continues to rotate to the initial position to put down the counterweight so that it can be connected to the counterweight next time.

[0018] In a specific embodiment, the driving member further includes an electromagnetic rod, the rod head of the electromagnetic rod can rotate freely, and the rod head of the electromagnetic rod is fixedly connected to the edge rod.

[0019] In the above implementation process, the electromagnetic rod drives the edge rod to extend and retract, thereby driving the turntable and the counterweight to engage and disengage.

[0020] Compared with the prior art, the beneficial effects of the present application are: the test tube is weighed by a turntable to determine the position where the counterweight is required, and the turntable is driven by a driving member to rotate to the specified position and then integrated with the counterweight member to complete the counterweight, thereby achieving the effect of automatic counterweight without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic diagram of a biological reagent centrifuge provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a frame cutaway provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the connection relationship between the counterweight and the frame provided in an embodiment of the present application.

[0025] In the figure: 10-frame; 20-driving member; 21-motor; 22-edge rod; 23-electromagnetic rod; 30-turntable; 31-disc seat; 32-sensor; 33-tube sleeve; 40-test tube; 50-counterweight; 51-rotating arm; 52-counterweight block; 53-pin rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0027] See also Figure 1-Figure 3 The present application provides a biological reagent centrifuge, including: wherein the test tube 40 is weighed by the turntable 30 to determine the position where the weight is required, and the turntable 30 is driven by the driving member 20 to rotate to the specified position and then integrated with the weight member 50 to complete the weighting, thereby achieving the effect of automatic weighting without manual operation.

[0028] See also Figure 1-Figure 3 The turntable 30 includes a disk base 31, and a cantilever beam type weighing sensor 32 is installed around the disk base 31. The cantilever beam type sensor 32 is used as a spoke and is also used to measure the weight of each test tube 40 so as to control the counterweight 50.

[0029] See also Figure 1-Figure 3 The outer end of the sensor 32 is fixedly connected with a tube sleeve 33, and the test tube 40 is movably inserted in the tube sleeve 33. The tube sleeve 33 is used for inserting the test tube 40, facilitating the installation of the test tube 40, and observing the centrifugal condition of the biological reagent at the lower end of the test tube 40.

[0030] See also Figure 1-Figure 3 The counterweight 50 includes a rotating arm 51, the inner end of the rotating arm 51 is rotatably connected to the frame 10, and the outer end of the rotating arm 51 is fixedly connected to a counterweight 52. The rotating arm 51 can rotate freely with the counterweight 52 without contacting the disc seat 31 to achieve the transfer of the center of gravity.

[0031] See also Figure 1-Figure 3The upper end surface of the rotating arm 51 is fixedly connected with a pin rod 53, and the lower end surface of the disc seat 31 is provided with a pin groove adapted to the pin rod 53. When the disc seat 31 moves down and fits to the end surface of the rotating arm 51, the pin rod 53 on the rotating arm 51 is embedded in the pin groove on the disc seat 31, and the rotating arm 51 rotates together with the disc seat 31, thereby helping the disc seat 31 to adjust its center of gravity.

[0032] See also Figure 1-Figure 3 The driving member 20 includes a servo-controlled motor 21, and the output shaft of the motor 21 is connected to the disc seat 31. The output shaft of the motor 21 is prismatic and hollow, and a prism 22 is inserted into the output shaft of the motor 21, and the prism 22 is fixedly connected to the disc seat 31. The motor 21 drives the prism 22 to rotate, and then drives the turntable 30 and the test tube 40 to rotate to achieve centrifugal action. At the same time, the turntable 30 can move up and down to achieve the clutch of the turntable 30 and the counterweight 50, so as to adjust the center of gravity. In this embodiment, the counterweight 52 is always in the initial position. After the motor 21 rotates with the turntable 30 and the counterweight 52, it continues to rotate to the initial position to put down the counterweight 52 so that it can be connected to the counterweight 52 next time.

[0033] See also Figure 1-Figure 3 The driving member 20 further includes an electromagnetic rod 23, the rod head of the electromagnetic rod 23 can rotate freely, and the rod head of the electromagnetic rod 23 is fixedly connected to the edge rod 22. The electromagnetic rod 23 drives the edge rod 22 to extend and retract, thereby driving the clutch of the rotating disk 30 and the counterweight 50.

[0034] The working principle of the biological reagent centrifuge is as follows: insert an odd number of biological reagent test tubes 40 into the tube sleeve 33, first place the test tubes 40 symmetrically, and insert the remaining one randomly, so that the remaining test tube 40 will lose balance, and the sensor 32 will measure the position of the single test tube 40, and then control the motor 21 to rotate, and the servo motor 21 drives the edge rod 22 to rotate, thereby driving the turntable 30 and the test tube 40 to rotate, and move the single test tube 40 to the position opposite to the counterweight block 52, and then the electromagnetic rod 23 retracts, so that the disc seat 31 moves down and fits against the end face of the rotating arm 51, and the pin rod 53 on the rotating arm 51 is embedded in the pin on the disc seat 31 In the slot, the rotating arm 51 and the counterweight 52 will rotate together with the disc seat 31, and the counterweight 52 will balance the single test tube 40 to achieve overall dynamic balance, thereby achieving a shock-absorbing effect. When the number of biological reagent test tubes 40 is an even number, they can be inserted symmetrically, and the electromagnetic rod 23 remains in an ejected state during rotation. The counterweight 50 stays on the frame 10 and does not rotate with the turntable 30. In summary, the turntable 30 is used to weigh the test tube 40 to determine the position where counterweight is required. The drive member 20 is used to drive the turntable 30 to rotate to the specified position and then merge with the counterweight 50 to complete the counterweight, thereby achieving an automatic counterweight effect without manual operation.

[0035] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, improvement or equivalent replacement made within the spirit and principle of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A biological reagent centrifuge, characterized in that: The invention comprises a frame (10), a driving member (20) and a rotating disk (30) with a weighing function, wherein the driving member (20) drives the rotating disk (30) to rotate, a test tube (40) is inserted into the rotating disk (30), a counterweight member (50) is rotatably connected to the frame (10), and the counterweight member (50) is axially connected to the rotating disk (30) in a clutchable manner.

2. A biological reagent centrifuge according to claim 1, characterized in that: The rotating disk (30) comprises a disk seat (31), and a cantilever beam type weighing sensor (32) is installed around the disk seat (31).

3. A biological reagent centrifuge according to claim 2, characterized in that: The outer end of the sensor (32) is fixedly connected to a tube sleeve (33), and the test tube (40) is movably inserted into the tube sleeve (33).

4. A biological reagent centrifuge according to claim 3, characterized in that: The counterweight (50) comprises a rotating arm (51), the inner end of the rotating arm (51) is rotatably connected to the frame (10), and the outer end of the rotating arm (51) is fixedly connected to a counterweight block (52).

5. A biological reagent centrifuge according to claim 4, characterized in that: The upper end surface of the rotating arm (51) is fixedly connected with a pin rod (53), and the lower end surface of the disc seat (31) is provided with an array of pin grooves matching the pin rod (53).

6. A biological reagent centrifuge according to claim 5, characterized in that: The driving member (20) comprises a servo-controlled motor (21), and the output shaft of the motor (21) is connected to the shaft of the disc seat (31).

7. A biological reagent centrifuge according to claim 6, characterized in that: The output shaft of the motor (21) is prismatic and hollow, and a prismatic rod (22) is inserted through the output shaft of the motor (21), and the prismatic rod (22) is fixedly connected to the disc seat (31).

8. A biological reagent centrifuge according to claim 7, characterized in that: The driving member (20) further comprises an electromagnetic rod (23), the rod head of the electromagnetic rod (23) can rotate freely, and the rod head of the electromagnetic rod (23) is fixedly connected to the edge rod (22).

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