Multi-pipe-rack centrifugal machine suitable for various specifications

Abstract

The multi-pipe-frame centrifugal machine comprises a low-speed centrifugal machine body, a containing notch is formed in the top of the low-speed centrifugal machine body, a rotating disc is arranged in the containing notch, a fixing column is arranged at the top end of the rotating disc, through grooves are formed in the two sides of the fixing column, and a first screw rod is arranged in the fixing column; a disc sleeves the outer side of the fixed column, the first sliding block located at the outer end of the through groove is fixedly connected with the disc, a plurality of first sliding grooves are evenly formed in the outer side of the disc, a plurality of telescopic rods are arranged at the edge of the rotating disc, and a fixed circular ring is fixed to the top ends of the telescopic rods; a plurality of clamping mechanisms are arranged between the fixed circular ring and the disc; the utility model aims to adapt to centrifugal tubes with different specifications, and avoid the problem that centrifugal equipment needs to be added and replaced when the centrifugal tubes with different specifications are centrifuged. And the overall shaking effect of the centrifugal machine can be reduced, so that the centrifugal machine is more stable in operation, relatively low in noise and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge equipment technical field, concretely relates to a multi -tube frame centrifuge suitable for various specifications. BACKGROUND

[0002] A centrifuge is a kind of equipment using centrifugal force to realize material separation, in the experiment in biology, medicine and other fields, often need to centrifuge separation to experimental sample, the traditional centrifugal separation operation usually needs to transfer sample to special centrifuge tube, again, centrifuge tube is placed on the rotor of centrifuge and is fixed, then runs centrifuge, makes centrifuge rotor rotate, and centrifugal operation is carried out to the sample in centrifuge tube during rotation. The classification of centrifuge is various, including filter type centrifuge, sedimentation type centrifuge and separator, etc., which are different in structure and separation requirement.

[0003] The utility model discloses a low -speed benchtop centrifuge, it includes casing, apron and control panel, the casing is equipped with centrifugal cavity, the centrifugal cavity center verticality is equipped with the rotating shaft, the casing is equipped with the drive mechanism of drive rotating shaft rotation still, the rotating shaft is coaxially detachable fixed with the centrifugal fixing frame for placing centrifuge tube, the centrifugal cavity is equipped with the protection cylinder of top opening, the protection cylinder bottom wall is opened with the through -hole of the rotating shaft, and the protection cylinder bottom wall is protrudingly arranged, and the protection cylinder bottom and the through -hole form a liquid collecting groove between. The low -speed benchtop centrifuge of the application protects the casing inner wall through the protection cylinder, effectively reduces the corrosion casing condition that centrifuge tube inner liquid splashes out.

[0004] In the existing low speed centrifuge, molecular biology laboratory low speed centrifuge uses frequency higher, often needs to centrifuge different caliber, different specifications and sizes of centrifuge tube in actual operation, when centrifuge can only adapt to certain specifications of centrifuge tube and can not be applied to other, laboratory often can only solve the problem by increasing centrifugal equipment, and the economic benefit and practicality are poor. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art in the above background art, the utility model aims at adapting to different specifications of centrifuge tube, simplifying the clamping step, reducing the whole shaking of centrifuge, making the centrifuge more stable during operation, and the noise is relatively small. Strong practicality.

[0006] In order to realize the above object, the technical scheme of the utility model is as follows:

[0007] The utility model provides a kind of multi-tube rack centrifuge suitable for multiple specifications, including low-speed centrifuge main body, the low-speed centrifuge main body top is equipped with placing notch, the placing notch is provided with rotating disc, the rotating disc top middle part is fixedly provided with fixed column, the fixed column both sides are equipped with through slot, the first screw rod is rotatably arranged in the fixed column, the first screw rod is threadedly connected with first sliding block, the first sliding block both sides extend to the outside of through slot, the fixed column outside is equipped with disc, the first sliding block in the outside end of through slot is fixedly connected with disc, the outside of disc is uniformly equipped with multiple first sliding slot, the rotating disc upper edge is fixedly provided with multiple telescopic rods, and multiple telescopic rods top is fixed with fixed ring, and multiple clamping mechanisms are provided between the fixed ring and the disc.

[0008] The clamping mechanism includes a fixed block fixedly arranged inside the ring, a notch is formed on one side of the fixed block facing the disc, a second screw rod is rotatably arranged in the notch, two arc-shaped clamping plates are threadedly connected to the second screw rod, the other ends of the two arc-shaped clamping plates are slidingly arranged in the first sliding slot, threaded openings are formed in the two arc-shaped clamping plates, and the two arc-shaped clamping plates are threadedly connected by a third screw rod passing through the threaded openings.

[0009] As a further scheme of the utility model, the bottom of the motor is provided with a second support plate, a plurality of sleeves are mounted on the bottom of the second support plate, a vertical column is slidingly arranged at the bottom of the plurality of sleeves, the other end of the vertical column is fixed to the inside bottom of the low-speed centrifuge main body, a first spring is sleeved on the vertical column, the top of the first spring abuts against the bottom of the sleeve, and the bottom of the first spring abuts against the inside bottom of the low-speed centrifuge main body.

[0010] As a further scheme of the utility model, a hinge is arranged on one side of the top of the low-speed centrifuge main body, the low-speed centrifuge main body is connected to the cover plate through the hinge, and an observation port is arranged at the center of the cover plate.

[0011] As a further scheme of the utility model, a control panel is arranged on one side of the top of the low-speed centrifuge main body, and a button is arranged on one side of the control panel.

[0012] As a further scheme of the utility model, two grooves are arranged on one side of the top of the low-speed centrifuge main body, a long column is fixedly installed in each of the two grooves, a second sliding block is sleeved on the long column, a telescopic column is installed on the second sliding block, a handle is fixed to the top of the telescopic column, and bristles are arranged on the side of the handle facing the control panel.

[0013] As a further scheme of the utility model, the low-speed centrifuge main body is provided with a second sliding groove on one side near the groove on the top, and a sliding plate is slidably arranged in the second sliding groove.

[0014] As a further scheme of the utility model, the sliding plate is located at the bottom end of the second sliding groove to limit the second sliding block.

[0015] As a further scheme of the utility model, a plurality of openings corresponding to the center of the arc-shaped clamping plate are formed on the top of the rotating disc, a second spring is arranged in each opening, the bottom of the second spring is fixed to the inner bottom of the rotating disc, a rubber pad is fixed to the top of the second spring, the rubber pad is slidably arranged in the opening, the bottom of the rubber pad is fixedly connected with the second spring, and the other end of the second spring is in contact with the inner bottom of the rotating disc.

[0016] As a further scheme of the utility model, a clamping soft pad is fixedly installed on the inner side of the arc-shaped clamping plate.

[0017] As a further scheme of the utility model, the low-speed centrifuge main body is provided with a heat dissipation hole on the outer side.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] (1) The utility model discloses an arc-shaped clamping plate, which clamps the centrifuge tube, and only needs to rotate the third screw rod to clamp and fix the centrifuge tube, adapts to centrifuge tubes of different diameters, and adjusts the height of the disc by rotating the first screw rod, so that the utility model is suitable for centrifuge tubes of various heights, simplifies the clamping steps, avoids the problem of adding and replacing centrifuge equipment when centrifuging centrifuge tubes of different specifications, and is economical and practical.

[0020] (2) The utility model discloses a sleeve, a stand and a first spring arranged in the low-speed centrifuge main body, which reduces the shaking effect of the centrifuge, makes the centrifuge more stable during operation, and has relatively small noise. The bottom of the centrifuge main body is also provided with a heat dissipation hole, so that the centrifuge can work for a long time and has good heat dissipation effect.

[0021] (3) The handle and other devices arranged near the control panel can clean the control panel, facilitate watching and operating the control panel, and prevent the handle from moving due to shaking during the centrifuging process, which is very convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the utility model;

[0023] Figure 2 Part structure section view schematic diagram of the utility model;

[0024] Figure 3 Rotary disc place section structure schematic diagram of the utility model;

[0025] Figure 4 Whole structure schematic diagram of the utility model's clamping mechanism is shown in the figure;

[0026] Figure 5 A place of the utility model is shown in the figure.

[0027] In the figure: 100-low speed centrifuge main part;110-cover plate;120-observation port;130-hinge;140-heat dissipation hole;200-placing notch;210-rotary disc;220-rotating shaft;230-fixed column;240-rubber gasket;250-second spring;260-first screw;270-first sliding groove;290-first sliding block;291-disk;292-telescopic rod;300-fixed ring;310-fixed block;320-second screw;330-arc clamping plate;340-clamping soft pad;350-third screw;400-motor;410-second support plate;420-sleeve;430-stand;440-first spring;450-first support plate;500-control panel;510-long column;520-second sliding block;530-telescopic column;540-grip lever;550-brush;560-second sliding groove;570-sliding plate 580-groove;590-button. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0030] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Please refer to the drawings Figures 1-5 A kind of multi-tube rack centrifuge suitable for multiple specifications, including low-speed centrifuge main body 100, it is characterized in that, the low-speed centrifuge main body 100 top is provided with placing notch 200, the placing notch 200 is provided with rotating disc 210, the rotating disc 210 top middle part is fixedly provided with fixed column 230, the fixed column 230 both sides are provided with through slot, the first screw rod 260 is rotatably arranged in the fixed column 230, the first screw rod 260 is screw connected with first sliding block 290, the first sliding block 290 both sides extend to the outside of through slot, the fixed column 230 outside is equipped with disc 291, the first sliding block 290 located in the outer end of through slot is fixedly connected with disc 291, the outside of disc 291 is evenly provided with a plurality of first sliding slot 270, a plurality of telescopic rods 292 are fixedly arranged on the upper edge of rotating disc 210, a plurality of telescopic rods 292 top are fixed with fixed ring 300, a plurality of clamping mechanisms are arranged between fixed ring 300 and disc 291;

[0032] The clamping mechanism comprises a fixed block 310 fixedly arranged inside the ring 300, a notch is formed in one side of the fixed block 310 towards the disc 291, a second screw 320 is rotatably arranged in the notch, two arc-shaped clamping plates 330 are threadedly connected to the second screw 320, the other ends of the two arc-shaped clamping plates 330 are slidably arranged in the first sliding groove 270, threaded holes are formed in the two arc-shaped clamping plates 330, a third screw 350 passes through the threaded holes and threadedly connects the two arc-shaped clamping plates 330, the rotating disc 210 is fixedly arranged at the bottom of the rotating shaft 220, the rotating shaft 220 is fixedly arranged at the bottom of the first support plate 450, the motor 400 is fixedly installed at the bottom of the first support plate 450, the output shaft of the motor 400 passes through the first support plate 450 and is fixedly connected with the rotating shaft 220. The arc-shaped clamping plate 330 is fixedly installed with a clamping soft pad 340 at the inner side thereof.

[0033] The low-speed centrifuge body 100 is provided with a hinge 130 at one side of the top thereof, the low-speed centrifuge body 100 is connected with the cover plate 110 through the hinge 130, and the cover plate 110 is provided with an observation opening 120 at the center thereof. The observation opening 120 facilitates real-time observation of the centrifugation condition.

[0034] The rotating disc 210 is provided with a plurality of openings corresponding to the centers of the arc-shaped clamping plates 330 at the top thereof, the second springs 250 are arranged in the plurality of openings, the bottoms of the second springs 250 are fixed to the inner bottom of the rotating disc 210, the rubber pads 240 are fixed to the tops of the second springs 250, the rubber pads 240 are slidably arranged in the openings, the bottoms of the rubber pads 240 are fixedly connected with the second springs 250, and the other ends of the second springs 250 are in contact with the inner bottom of the rotating disc 210.

[0035] In use, first of all, the device is placed on a stable workbench, the cover plate 110 is opened, then the centrifuge tube to be tested is selected, the centrifuge tube is placed between the two arc-shaped clamping plates 330, the first screw rod 260 is rotated to drive the first sliding block 290 to move, the first sliding block 290 is adjusted to move the disc 291 together, the distance between the arc-shaped clamping plate 330 and the rotating disc 210 is adjusted to adapt to the height of the centrifuge tube, the distance between the two arc-shaped clamping plates 330 is adjusted by rotating the third bolt 350 to adapt to the centrifuge tube to be tested, the clamping soft pad 340 between the arc-shaped clamping plates 330 can protect the centrifuge tube and ensure stability during centrifugation, the bottom of the centrifuge tube is in contact with the rubber pad 240, the rubber pad 240 can protect the bottom of the centrifuge tube, the second spring 250 is arranged at the bottom of the rubber pad 240, and the rubber pad 240 and the inner side wall of the rotating disc 210 can always wrap the bottom of the centrifuge tube, then the centrifuge tube between the two arc-shaped clamping plates 330 is clamped and fixed, and the centrifuge tube is locked.

[0036] The bottom of the motor 400 is provided with a second support plate 410, a plurality of sleeves 420 are mounted at the bottom of the second support plate 410, a plurality of stand columns 430 are slidably arranged at the bottom of the sleeves 420, the other end of the stand column 430 is fixed to the inner bottom of the low-speed centrifuge body 100, a first spring 440 is sleeved on the stand column 430, the top of the first spring 440 is in abutment with the bottom of the sleeve 420, and the bottom of the first spring is in abutment with the inner bottom of the low-speed centrifuge body 100.

[0037] During centrifugation, the motor 400 will vibrate, and the longer the service life, the more obvious the vibration of the motor 400, the sleeve 420, the stand column 430 and the first spring 440 reduce the shaking effect of the whole centrifuge, so that the centrifuge is more stable during operation and relatively smaller in noise. The bottom of the centrifuge body 100 is also processed with heat dissipation holes 10, so that the centrifuge can work for a long time and has good heat dissipation effect.

[0038] The top of the low-speed centrifuge body 100 is provided with a control panel 500 on one side, and the control panel 500 is provided with a button 590 on one side.

[0039] The top of the low-speed centrifuge body 100 is provided with two grooves 580 on one side, and a long column 510 is fixedly installed in each groove 580. A second sliding block 520 is slidably arranged on the long column 510, a telescopic column 530 is installed on the second sliding block 520, a handle 540 is fixedly arranged at the top of the telescopic column 530, and brush hairs 550 are arranged on the side of the handle 540 facing the control panel 500.

[0040] The low-speed centrifuge body 100 is provided with a second sliding groove 560 on one side of the top close to the groove 580, and a sliding plate 570 is slidably arranged in the second sliding groove 560.

[0041] After the centrifugal work is completed, the sliding plate 570 is moved upwards, the handle 540 is held, the long column 510 plays a guiding role on the second sliding block 520, the brush on the handle 540 can clean the control panel 500, which is beneficial to watch and operate the control panel 500, after cleaning, the handle 540 is moved to the left, the sliding plate 570 is moved upwards, the handle 540 drives the second sliding block 520 to move to the left, and after moving to the leftmost side, the sliding plate 570 is placed down, and the second sliding block 520 is limited, so that the handle 540 is prevented from moving randomly during the centrifugal process.

[0042] The low-speed centrifuge body 100 is provided with a second sliding groove 560 on one side of the top close to the groove 580, and a sliding plate 570 is slidably arranged in the second sliding groove 560.

[0043] The working principle of the utility model is as follows:

[0044] In use, first, the device is placed on a stable workbench, the cover plate 110 is opened, then the centrifuge tube to be tested is selected, the centrifuge tube is placed between the two arc-shaped clamping plates 330, the first screw rod 260 is rotated, the first screw rod 260 drives the first sliding block 290 to move, the first sliding block 290 is adjusted, so that the disc 291 moves together, the distance between the arc-shaped clamping plate 330 and the rotating disc 210 is adjusted, so that the height of the centrifuge tube is adapted, the distance between the two arc-shaped clamping plates 330 is adjusted by rotating the third bolt 350, so that the centrifuge tube to be tested is adapted, the clamping soft pad 340 between the arc-shaped clamping plates 330 can protect the centrifuge tube, and the stability during centrifugation is ensured, the bottom of the centrifuge tube is in contact with the rubber pad 240, the rubber pad 240 can protect the bottom of the centrifuge tube, the rubber pad 240 is provided with the second spring 250 at the bottom, the second spring 250 can wrap the bottom of the centrifuge tube with the inner wall of the rotating disc 210, then the centrifuge tube between the two arc-shaped clamping plates 330 is clamped and fixed, after the centrifuge tube is locked, the fixing of other centrifuge tubes is completed according to the same steps.

[0045] After the fixing of the centrifugal tube is completed, the cover plate 110 is covered on the low-speed centrifuge main body 100, the motor 400 is controlled to operate through the control panel 500, the output shaft of the motor 400 drives the rotating shaft 220 to rotate, thereby driving the rotating disc 210 to rotate, and the sample is centrifuged; when centrifuging, the motor 400 will generate a certain vibration, and the longer the service life, the more obvious the vibration of the motor 400, the sleeve 420, the stand column 430 and the first spring 440 reduce the shaking effect of the whole centrifuge, so that the centrifuge is more stable when operating and the noise is relatively small. The bottom of the centrifuge main body 100 is also processed with the heat dissipation hole 10, so that the device can work for a long time and has good heat dissipation effect.

[0046] After the centrifugation is completed, the staff moves the sliding plate 570 upwards, holds the handle 540, the long column 510 plays a guiding role on the second sliding block 520, and the brush on the handle 540 can clean the control panel 500, which is beneficial to watching and operating the control panel 500; after cleaning is completed, the handle 540 is moved to the left side, at this time the sliding plate 570 is moved upwards, the handle 540 drives the second sliding block 520 to move to the left, and after moving to the leftmost side, the sliding plate 570 is put down, thereby limiting the second sliding block 520, and preventing the handle 540 from moving randomly during centrifugation.

[0047] Finally, it should be noted that the control panel 500, the button 590, the motor 400 and other components involved in the utility model are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by the technical personnel through the technical manual or through the conventional experimental method, in the idle place of the device, all the electrical components, the power elements, the electrical components and the adapted controller and power supply are connected through the wires, the specific connection means should be referred to the working principle in the utility model, the electrical components are connected in the order of working sequence, and the detailed connection means are all the known technology in the art.

[0048] The above merely describes a preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multi-tube rack centrifuge suitable for various specifications, comprising a low speed centrifuge main body (100), characterized in that, The low-speed centrifuge body (100) is provided with a placing notch (200) at the top, a rotating disc (210) is arranged in the placing notch (200), a fixed column (230) is fixedly arranged at the top middle of the rotating disc (210), a through groove is formed at the two sides of the fixed column (230), a first screw rod (260) is rotatably arranged in the fixed column (230), a first sliding block (290) is threadedly connected to the first screw rod (260), the two sides of the first sliding block (290) extend out of the through groove, a disc (291) is sleeved outside the fixed column (230), the first sliding block (290) at the outer end of the through groove is fixedly connected with the disc (291), a plurality of first sliding grooves (270) are uniformly formed at the outside of the disc (291), a plurality of telescopic rods (292) are fixedly arranged at the upper edge of the rotating disc (210), a fixed ring (300) is fixedly arranged at the top of the telescopic rods (292), and a plurality of clamping mechanisms are arranged between the fixed ring (300) and the disc (291). The clamping mechanism comprises a fixed block (310) fixedly arranged inside the fixed ring (300), a notch is formed at the side of the fixed block (310) facing the disc (291), a second screw rod (320) is rotatably arranged in the notch, two arc-shaped clamping plates (330) are threadedly connected to the second screw rod (320), the other ends of the two arc-shaped clamping plates (330) are slidably arranged in the first sliding groove (270), threaded holes are formed in the two arc-shaped clamping plates (330), and a third screw rod (350) passes through the threaded holes and is threadedly connected between the two arc-shaped clamping plates (330), a rotating shaft (220) is fixedly arranged at the bottom of the rotating disc (210), a first supporting plate (450) is fixedly arranged at the bottom of the rotating shaft (220), a motor (400) is fixedly arranged at the bottom of the first supporting plate (450), and the output shaft of the motor (400) passes through the first supporting plate (450) and is fixedly connected with the rotating shaft (220).

2. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 1, wherein, A second supporting plate (410) is arranged at the bottom of the motor (400), a plurality of sleeves (420) are arranged at the bottom of the second supporting plate (410), a stand column (430) is slidably arranged at the bottom of the sleeves (420), the other end of the stand column (430) is fixed to the inner bottom of the low-speed centrifuge body (100), a first spring (440) is sleeved on the stand column (430), the top of the first spring (440) abuts against the bottom of the sleeve (420), and the bottom of the first spring abuts against the inner bottom of the low-speed centrifuge body (100).

3. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 1, wherein, A hinge (130) is arranged at one side of the top of the low-speed centrifuge body (100), the low-speed centrifuge body (100) is connected with a cover plate (110) through the hinge (130), and an observation hole (120) is arranged at the center of the cover plate (110).

4. The multi-species multi-tube rack centrifuge according to claim 1, wherein, A control panel (500) is arranged at one side of the top of the low-speed centrifuge body (100), and a button (590) is arranged at one side of the control panel (500).

5. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 4, wherein, The low-speed centrifuge body (100) is provided with two grooves (580) on one side of the top, two long columns (510) are fixedly installed in the two grooves (580), a second sliding block (520) is sleeved on the long column (510), a telescopic column (530) is installed on the second sliding block (520), a handle (540) is fixedly arranged on the top of the telescopic column (530), and bristles (550) are arranged on the side of the handle (540) facing the control panel (500).

6. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 5, wherein, The low-speed centrifuge body (100) is provided with two grooves (580) on one side of the top, two long columns (510) are fixedly installed in the two grooves (580), a second sliding block (520) is sleeved on the long column (510), a telescopic column (530) is installed on the second sliding block (520), a handle (540) is fixedly arranged on the top of the telescopic column (530), and bristles (550) are arranged on the side of the handle (540) facing the control panel (500).

7. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 6, wherein, The low-speed centrifuge body (100) is provided with two grooves (580) on one side of the top, two long columns (510) are fixedly installed in the two grooves (580), a second sliding block (520) is sleeved on the long column (510), a telescopic column (530) is installed on the second sliding block (520), a handle (540) is fixedly arranged on the top of the telescopic column (530), and bristles (550) are arranged on the side of the handle (540) facing the control panel (500).

8. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 1, wherein, The rotating disc (210) is provided with a plurality of openings corresponding to the center of the arc-shaped clamping plate (330) on the top, a second spring (250) is arranged in each opening, the bottom of the second spring (250) is fixed to the inner bottom of the rotating disc (210), the top of the second spring (250) is fixedly provided with a rubber pad (240), the rubber pad (240) is slidably arranged in the opening, a plurality of rubber pads (240) are fixedly connected with the second spring (250) at the bottom, and the other end of the second spring (250) is in contact with the inner bottom of the rotating disc (210).

9. A multi-tube rack centrifuge suitable for use with multiple sizes according to claim 1, wherein, The inner side of the arc-shaped clamping plate (330) is fixedly provided with a clamping soft pad (340).

10. The multi-species multi-tube rack centrifuge according to claim 1, wherein, The outer side of the low-speed centrifuge body (100) is provided with a heat dissipation hole (140).

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