CN115069428B - Centrifugal machine - Google Patents
Centrifugal machine Download PDFInfo
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- CN115069428B CN115069428B CN202210655582.1A CN202210655582A CN115069428B CN 115069428 B CN115069428 B CN 115069428B CN 202210655582 A CN202210655582 A CN 202210655582A CN 115069428 B CN115069428 B CN 115069428B
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- rotating shaft
- tube storage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
- B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
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Abstract
The invention relates to a centrifuge, which is improved on a rotor and a main shaft in the prior art, wherein a round hole is formed at the lower end of a rotating shaft matched with the rotor and the main shaft, a connecting shaft is axially arranged in the round hole, the connecting shaft is axially and slidably matched with the round hole through the matching of a sliding groove and a sliding block, a spring is arranged between the connecting shaft and the rotating shaft, the connecting shaft is inserted into a jack formed in the main shaft, a continuous clamping groove and a limiting groove are formed in the side wall of the jack, the rotating shaft is driven to rotate by the rotation of a clamping pin and the clamping groove and the limiting groove, and meanwhile, the storage position of a test tube is changed through a lead screw, so that the centrifugal force is changed, the operation is very simple and convenient, the installation work of the rotor can be realized only by pressing and small-angle rotation, meanwhile, the test tube placement position on the rotor can be flexibly adjusted according to the requirement of the centrifugal force, and the pressure of gas in an inflator is utilized to perform differential locking work on the test tube.
Description
Technical Field
The invention belongs to the technical field of biochemical reaction instruments, and particularly relates to a centrifugal machine.
Background
Centrifuges are machines that utilize centrifugal force to separate components of a liquid from solid particles or a mixture of liquid and liquid. Centrifuges are mainly used to separate solid particles from liquids in suspension or to separate liquids of different densities and which are not mutually compatible with each other in emulsions (e.g. to separate cream from milk); it can also be used to remove liquids from wet solids, such as drying wet clothing with a washing machine; the special overspeed tube separator can also separate gas mixtures with different densities; by utilizing the characteristic that the sedimentation speeds of solid particles with different densities or particle sizes in liquid are different, some sedimentation centrifuges can also classify the solid particles according to the densities or particle sizes. The desk-top centrifuge is an indispensable tool in laboratory separation and preparation work, and is a special instrument for separating and precipitating mixed solution by utilizing centrifugal force, and is used for collecting cell fragments of microorganism strains, large organelles, some precipitates and the like.
The existing centrifugal machine generally needs to be screwed when the rotor is installed, is very troublesome to install and take down, the storage position of the test tube on each rotor is relatively fixed, and the centrifugal force is proportional to the distance between the test tube and the center of the rotating shaft, so that the centrifugal force can be adjusted by adjusting the position of the centrifugal tube on the rotor, the fixing of the storage position of the test tube on the existing rotor is improved, and therefore, a centrifugal machine is needed to solve the problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a centrifugal machine, which is used for solving the problems that the rotor of the existing centrifugal machine is troublesome to install and the storage position of test tubes on the rotor is fixed and can not be flexibly adjusted according to the requirement of the centrifugal force.
The technical aim of the invention is realized by the following technical scheme:
the centrifugal machine comprises a machine case, a rotor and a controller, and is characterized in that the upper end of the machine case is hinged with a case cover, a retarding support opening device is arranged between the case cover and the machine case to slowly open the case cover and support the case cover, a control panel is arranged on the machine case, a centrifugal cavity is formed in the upper end of the machine case, a main shaft is rotated in the centrifugal cavity, the main shaft is driven to rotate by a rotating device arranged in the machine case, and a temperature control device is arranged in the machine case to control the temperature in the centrifugal cavity;
the rotor comprises a rotating shaft, a plurality of groups of radially arranged fixed blocks are uniformly distributed and connected at the lower end of the rotating shaft along the circumferential direction, a moving block is arranged on the fixed block along the radial sliding fit of the rotating shaft, the radial position of the moving block on the fixed block is regulated by a radial regulating device connected with the moving block, a test tube storage device is connected at the upper end of the moving block and used for storing test tubes, a round hole is formed at the lower end of the rotating shaft, a connecting shaft is coaxially and vertically connected in the round hole in a sliding manner, two groups of sliding grooves with the lower end being impermeable are formed on the inner side wall of the round hole along the axial direction, a sliding block matched with the sliding grooves in a sliding manner is connected on the connecting shaft, a spring is connected between the upper end of the connecting shaft and the inner bottom surface of the round hole, and a bayonet lock radially arranged is uniformly distributed and connected at the lower end of the connecting shaft along the circumferential direction;
the upper end of the main shaft is provided with a jack matched with the diameter of the connecting shaft, the side wall of the jack is provided with two groups of L-shaped clamping grooves matched with the clamping pins, the upper end of each clamping groove is opened, the end part of each clamping groove is communicated with a vertically arranged limiting groove arranged on the side wall of the jack, and each limiting groove is matched with each clamping pin;
the control panel, the rotating device and the temperature control device are electrically connected with the controller;
the upper end of the fixed block is provided with a placement groove with a T-shaped section, the lower end of the movable block is provided with a structure with a T-shaped section and is in sliding fit with the placement groove, the radial adjusting device comprises a screw rod which is radially arranged along the rotating shaft and is rotationally connected in the placement groove, and the screw rod is threaded through the movable block and is connected with a knob at the end part;
the test tube storage device comprises a trapezoid block connected to the upper end of the moving block, wherein an inclined plane of the trapezoid block is inclined towards the axis direction of the rotating shaft, a test tube storage barrel is arranged at the upper end of the trapezoid block, and a test tube adsorption device is connected to the test tube storage barrel to adsorb and position test tubes in the test tube storage barrel;
the test tube adsorption device comprises an air inlet pipe which is arranged in the test tube storage cylinder, the other end of the air inlet pipe is communicated with an air cylinder which is arranged on the side wall of the test tube storage cylinder, a piston is axially and slidably connected in the air cylinder, a piston rod which is arranged in the air cylinder is connected to the piston, a screwing nut is connected to the end part of the piston rod, and the screwing nut is in threaded fit with the air cylinder.
Preferably, one end of the air inlet pipe arranged in the test tube storage cylinder is connected with a rubber ring matched with the bottom of the test tube.
Preferably, two groups of rectangular holes are formed in the upper end of the case, two groups of rectangular blocks matched with the rectangular holes are connected to the case cover, magnets are connected to the rectangular blocks, and opposite magnets matched with the magnets are arranged in the rectangular holes.
Preferably, the speed-reducing support opening device comprises a damper rotatably connected to the upper end of the case, and the other end of the damper is rotatably connected to the case cover.
The invention has the beneficial effects that: according to the invention, a round hole is formed at the lower end of a rotating shaft matched with the rotor and the main shaft, a connecting shaft is axially arranged in the round hole, the connecting shaft is axially matched with the round hole in a sliding way through the matching of a sliding groove and a sliding block, a spring is arranged between the connecting shaft and the rotating shaft, the connecting shaft is inserted into a jack formed in the main shaft, a continuous clamping groove and a limiting groove are formed in the side wall of the jack, the rotating shaft is driven to rotate by the rotation of the main shaft through the matching of a clamping pin, the clamping groove and the limiting groove, and meanwhile, the storage position of a test tube is changed through a screw rod, so that the size of the centrifugal force is changed.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of the present invention at a second perspective view.
Fig. 3 is a front view of the present invention.
Fig. 4 is a top view of the invention with the cover removed.
Fig. 5 is a perspective view of the rotor and spindle assembly of the present invention.
Fig. 6 is a perspective view of a rotor according to the present invention.
Fig. 7 is a cross-sectional view of the rotor mated with the spindle in the present invention.
Fig. 8 is a perspective view of the coupling shaft and the main shaft of the present invention.
Fig. 9 is a perspective view of a screw and a connecting portion thereof according to the present invention.
FIG. 10 is a perspective view of a test tube storage device according to the present invention.
In the figure, 1, a case; 2. a rotor; 3. a case cover; 4. a control panel; 5. a centrifugal chamber; 6. a main shaft; 7. a rotating shaft; 8. a fixed block; 9. a moving block; 10. a round hole; 11. a connecting shaft; 12. a chute; 13. a slide block; 14. a spring; 15. a bayonet lock; 16. a jack; 17. a clamping groove; 18. a limit groove; 19. a placement groove; 20. a screw rod; 21. a knob; 22. a trapezoid block; 23. a test tube storage cylinder; 24. an air inlet pipe; 25. an air cylinder; 26. a piston; 27. a piston rod; 28. a knob nut; 29. a rubber ring; 30. a rectangular hole; 31. rectangular blocks; 32. a damper.
Description of the embodiments
The following describes embodiments of the present invention in further detail with reference to FIGS. 1-10.
The centrifugal machine comprises a machine case 1, a rotor 2 and a controller, wherein the upper end of the machine case 1 is hinged with a case cover 3, a retarding support opening device is arranged between the case cover 3 and the machine case 1 to realize slow opening of the case cover 3 and support of the case cover 3, a control panel 4 is arranged on the machine case 1, the control panel 4 controls the centrifugal temperature of the centrifugal machine, meanwhile, the rotating speed of the rotor 2 is regulated, the control panel 4 performs man-machine interaction with a user, two groups of rectangular blocks 31 matched with rectangular holes 30 are connected to the case cover 3, magnets are connected to the rectangular blocks 31, opposite magnets matched with the magnets are arranged in the rectangular holes 30, the case cover 3 is adsorbed by the magnets and the opposite magnets after being closed, so that the case cover 3 is closed, the retarding support opening device comprises a damper 32 rotatably connected to the upper end of the machine case 1, the other end of the damper 32 is rotatably connected to the case cover 3, the damper 32 slowly lifts the case cover 3 in the current position in the process of opening the case cover 3, a centrifugal cavity 5 is opened at the upper end of the machine case, a centrifugal cavity 5 is rotated by a spindle 5, a spindle 6 is rotatably arranged in the machine case 1, a temperature control device is rotatably arranged in the machine case 1, and the spindle is rotatably controlled by the spindle 6 and is rotatably connected to the spindle device in the machine case 1;
the rotor 2 comprises a rotating shaft 7, a plurality of groups of radially arranged fixed blocks 8 are uniformly distributed and connected at the lower end of the rotating shaft 7 along the circumferential direction, a moving block 9 is arranged on the fixed blocks 8 along the radial direction of the rotating shaft 7 in a sliding fit manner, the radial position of the moving block 9 on the fixed blocks 8 is regulated by a radial regulating device connected with the fixed blocks 8, a T-shaped mounting groove 19 is formed at the upper end of the fixed blocks 8, a T-shaped structure is arranged at the lower end of the moving block 9, the T-shaped structure is slidingly matched with the mounting groove 19, the moving block 9 can only move along the radial direction of the rotating shaft 7, the radial regulating device comprises a screw rod 20 which is radially arranged along the rotating shaft 7 and is rotationally connected in the mounting groove 19, the screw rod 20 is threaded through the moving block 9, a knob 21 is connected at the end part, the rotation of the screw rod 20 is limited due to the rotation of the moving block 9, therefore, in the rotation process of the screw rod 20, the moving block 9 can only carry out position adjustment in the radial direction, thereby changing the distance between the moving block 9 and the center of the rotating shaft 7, and further adjusting the centrifugal force, the upper end of the moving block 9 is connected with a test tube storage device, the test tube storage device is used for storing test tubes, the lower end of the rotating shaft 7 is provided with a round hole 10, a connecting shaft 11 is coaxially and vertically connected in the round hole 10 in a sliding manner, the inner side wall of the round hole 10 is axially provided with two groups of sliding grooves 12 with the impermeable lower end, the connecting shaft 11 is connected with a sliding block 13 in sliding fit with the sliding grooves 12, a spring 14 is connected between the upper end of the connecting shaft 11 and the inner bottom surface of the round hole 10, so that the connecting shaft 11 can carry out relative movement in the vertical direction relative to the rotating shaft 7, and simultaneously the rotating shaft 7 can rotate together with the connecting shaft 11, the lower end of the connecting shaft 11 is uniformly distributed and connected with radially arranged bayonet locks 15 along the circumferential direction;
the upper end of the main shaft 6 is provided with a jack 16 matched with the diameter of the connecting shaft 11, the side wall of the jack 16 is provided with two groups of L-shaped clamping grooves 17 matched with the clamping pins 15, the upper end of the clamping grooves 17 is opened, the end part of the clamping grooves 17 is communicated with a vertically arranged limiting groove 18 arranged on the side wall of the jack 16, the limiting groove 18 is matched with the clamping pins 15, the clamping grooves 17 and the limiting groove 18 form a lightning shape, the clamping pins 15 are matched with the limiting groove 18, the main shaft 6 is driven by a rotating device to rotate, the connecting shaft 11 is driven to rotate, the whole rotor 2 is driven to rotate, the rotary knob 21 is not required to be operated, only the clamping pins 15 on the rotor 2 are required to be aligned with the clamping grooves 17 on the main shaft 6, the rotor 2 is required to be pressed downwards, the clamping pins 15 can move into the vertical limiting grooves 18 from the clamping grooves 17 under the action of the whole gravity of the rotor 2, and the clamping pins 15 can be reliably clamped in the limiting grooves 18 under the action of the whole gravity of the spring 14, and rotate along with the rotation of the main shaft 6;
the control panel 4, the rotating device and the temperature control device are electrically connected with the controller, the controller is made of integrated circuit chips, the controller is made of the prior art, the description is omitted, when the rotary type rotary electric power control device is used, firstly, the box cover 3 is opened, the connecting shaft 11 on the rotor 2 is aligned with the jack 16 on the main shaft 6 and inserted into the slot 17, after the rotary electric power control device reaches the bottom of the slot 17, the rotor 2 is rotated at a small angle, the bayonet 15 reaches the position of the limit slot 18, and enters the limit slot 18 which is vertically arranged, under the action of the whole rotor 2 body and the spring 14, the rotary electric power control device is reliably clamped in the limit slot 18, so that the rotation of the main shaft 6 drives the connecting shaft 11 and the rotary shaft 7 to rotate together, and simultaneously, when the rotor 2 is dismounted, the gravity of the whole rotor 2 and the elasticity of the spring 14 are only overcome, the bayonet 15 reaches the uppermost end of the limit slot 18, and the rotor 2 is reversely rotated until the rotor 2 can be pulled out from the slot 17 smoothly; after the rotor 2 is installed, we can drive the screw 20 to rotate through the knob 21 on the fixed block 8 on the corresponding side of rotation in the process of needing to carry out the size adjustment of test tube centrifugal force, the rotation of the screw 20 drives the position change on the radial direction of the movable block 9, thereby change the size of centrifugal force, after having adjusted, place the test tube on the test tube strorage device, cover the case lid 3, adjust centrifugal rotational speed and centrifugal temperature and carry out centrifugal work can, the centrifugation is ended, open the case lid 3, take down rotor 2, clean the processing simultaneously, wait for the next use, the operation of this embodiment is very simple and convenient, need not use the process of carrying out loaded down with trivial details knob 21 installation rotor 2, only need press and the installation work of small-angle rotation can be realized, the test tube on the rotor 2 is laid the position and can be adjusted in a flexible way according to the requirement of centrifugal force simultaneously, the practicality is strong, be fit for using widely.
In the second embodiment, on the basis of the first embodiment, the test tube storage device comprises a trapezoid block 22 connected to the upper end of the moving block 9, the inclined slope of the trapezoid block 22 is inclined towards the axis direction of the rotating shaft 7, a test tube storage cylinder 23 at the upper end of the trapezoid block 22, that is, the test tube storage cylinder 23 is also inclined, which is the same as the purpose of the inclined arrangement of the test tube placing cylinder on the rotor 2 in the existing centrifuge, so as to ensure that spill occurs in the centrifugation process, the test tube storage cylinder 23 is connected with a test tube adsorption device, so as to realize the adsorption arrangement of test tubes in the test tube storage cylinder 23, the test tube adsorption device comprises an air inlet pipe 24 opened in the test tube storage cylinder 23, the bottom of the test tube storage cylinder 23 is communicated with the air inlet pipe 24, the other end of the air inlet pipe 24 is communicated with an air cylinder 25 arranged on the side wall of the test tube storage cylinder 23, the piston 26 is connected with the piston 26 in an axial sliding manner in the air cylinder 25, the piston 26 is connected with a piston 26 rod arranged in the air cylinder 25, the air cylinder 25 and the piston 26 are structurally similar to a structure of a needle injection cylinder, so that when the volume of air in the air cylinder 25 changes, a test tube can be smoothly locked in the test tube storage cylinder 23 under the action of air pressure difference, the end part of the piston 26 rod is connected with a screwing nut which is in threaded fit with the air cylinder 25, the screwing fit of the screwing nut and the air cylinder 25 is used for adjusting the position of the piston 26, thereby realizing the adsorption and non-adsorption processes of the test tube, one end of the air inlet pipe 24 arranged in the test tube storage cylinder 23 is connected with a rubber ring 29 matched with the bottom of the test tube, when the test tube is put into the corresponding test tube storage cylinder 23 in use in the embodiment, the bottom of the test tube is contacted with the rubber ring 29, one end of the air inlet cylinder 25 is sealed, then a screwing nut outside the air cylinder 25 is screwed, the piston 26 is pushed outwards, the volume of air in the air cylinder 25 is increased, the pressure is reduced, the test tube is firmly locked on the rubber ring 29 at the end part of the air inlet pipe 24 by air pressure, so that the test tube can be reliably placed in the centrifugal process, the nut is screwed inwards after the centrifugal process is finished, the volume in the air cylinder 25 is reduced, and the test tube can be taken out from the test tube storage cylinder 23 smoothly.
When the rotor 2 is used, the box cover 3 is firstly opened, the connecting shaft 11 on the rotor 2 is aligned with the jack 16 on the main shaft 6 and is inserted, the clamping pin 15 on the connecting shaft 11 is aligned with the clamping groove 17, the rotor 2 is rotated at a small angle after reaching the bottom of the clamping groove 17, the clamping pin 15 reaches the position of the limiting groove 18 and enters the vertically arranged limiting groove 18, the clamping pin is reliably clamped in the limiting groove 18 under the action of the whole rotor 2 body and the spring 14, so that the rotation of the main shaft 6 drives the connecting shaft 11 and the rotating shaft 7 to rotate together, and meanwhile, when the rotor 2 is dismounted, the whole rotor 2 is pulled upwards only by overcoming the gravity of the rotor 2 and the elasticity of the spring 14, so that the clamping pin 15 reaches the uppermost end of the limiting groove 18, and the rotor 2 is rotated reversely until the rotor 2 can be pulled out from the clamping groove 17 smoothly; after the rotor 2 is installed, we can drive the lead screw 20 to rotate through the knob 21 on the fixed block 8 of the corresponding side of rotation in the process of needing to carry out the size adjustment of test tube centrifugal force, the rotation of the lead screw 20 drives the position change on the radial direction of the movable block 9, thereby change the size of centrifugal force, after the adjustment, the test tube is put into corresponding test tube storage cylinder 23, test tube bottom and rubber ring 29 contact, seal the one end of air inlet cylinder 25, then screw the screw nut outside air cylinder 25, outwards promote piston 26, the gas volume in air cylinder 25 grow, the pressure then becomes small, the atmospheric pressure firmly locks the test tube on the rubber ring 29 of air inlet pipe 24 tip, thereby play the effect of carrying out reliable settling to the test tube in the process of centrifugation, after the test tube is placed and is accomplished, cover 3 is covered, adjust centrifugal rotational speed and centrifugal temperature and carry out centrifugal operation can smoothly, after the centrifugation is finished, open cover 3, inwards screw down, make the volume in air cylinder 25 become small, thereby make the test tube can take out from the rotor 2 from the storage cylinder 23, simultaneously carry out cleaning treatment, then screw nut, wait for the time, the pressure is easy to use, install the rotor 2 is difficult to carry out the operation, the high-speed is convenient to install the rotor 2, the invention, the high-speed is easy to install the rotor 2 can be mounted, the rotor 2 can be mounted in the process can be conveniently and can be adjusted by the pressure 2, the pressure is flexible, the pressure can be conveniently and flexible, the rotor can be conveniently and can be conveniently used.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The centrifugal machine comprises a machine case (1), a rotor (2) and a controller, and is characterized in that the upper end of the machine case (1) is hinged with a case cover (3), a retarding support opening device is arranged between the case cover (3) and the machine case (1) to slowly open the case cover (3) and support the case cover (3), a control panel (4) is arranged on the machine case (1), a centrifugal cavity (5) is arranged at the upper end of the machine case (1), a main shaft (6) rotates in the centrifugal cavity (5), the main shaft (6) is driven to rotate through a rotating device arranged in the machine case (1), and a temperature control device is arranged in the machine case (1) to control the temperature in the centrifugal cavity (5);
the rotor (2) comprises a rotating shaft (7), a plurality of groups of radially arranged fixed blocks (8) are uniformly distributed at the lower end of the rotating shaft (7) along the circumferential direction, moving blocks (9) are radially and slidably matched with the fixed blocks (8) along the rotating shaft (7), the radial positions of the moving blocks (9) on the fixed blocks (8) are regulated by radial regulating devices connected with the moving blocks (9) through the fixed blocks (8), test tube storage devices are connected with the upper ends of the moving blocks (9), the test tube storage devices are used for storing test tubes, round holes (10) are formed at the lower ends of the rotating shaft (7), connecting shafts (11) are coaxially and vertically connected in the round holes (10) in a sliding mode, two groups of sliding grooves (12) with the lower ends being impermeable are formed in the inner side walls of the round holes (10) along the axial direction, sliding blocks (13) which are slidably matched with the sliding grooves (12) are connected with the connecting shafts (11), springs (14) are connected between the upper ends of the connecting shafts (11) and the inner bottom surfaces of the round holes (10), and radial clamping pins (15) are uniformly distributed at the lower ends of the connecting shafts (11) along the circumferential direction.
The upper end of the main shaft (6) is provided with a jack (16) matched with the diameter of the connecting shaft (11), the side wall of the jack (16) is provided with two groups of L-shaped clamping grooves (17) matched with the clamping pins (15), the upper end of the clamping grooves (17) is opened, the end part of the clamping grooves (17) is communicated with a vertically arranged limit groove (18) arranged on the side wall of the jack (16), and the limit groove (18) is matched with the clamping pins (15);
the control panel (4), the rotating device and the temperature control device are electrically connected with the controller;
the upper end of the fixed block (8) is provided with a placement groove (19) with a T-shaped cross section, the lower end of the movable block (9) is provided with a structure with a T-shaped cross section and is in sliding fit with the placement groove (19), the radial adjusting device comprises a screw rod (20) which is radially arranged along the rotating shaft (7) and is rotationally connected in the placement groove (19), and the screw rod (20) is threaded through the movable block (9) and is connected with a knob (21) at the end part;
the test tube storage device comprises a trapezoid block (22) connected to the upper end of the moving block (9), wherein an inclined plane of the trapezoid block (22) is inclined towards the axis direction of the rotating shaft (7), a test tube storage cylinder (23) is arranged at the upper end of the trapezoid block (22), and a test tube adsorption device is connected to the test tube storage cylinder (23) to meet the requirement of adsorbing and arranging test tubes in the test tube storage cylinder (23);
the test tube adsorption device comprises an air inlet pipe (24) which is arranged in a test tube storage cylinder (23), the other end of the air inlet pipe (24) is communicated with an air cylinder (25) which is arranged on the side wall of the test tube storage cylinder (23), a piston (26) is axially and slidingly connected with the air cylinder (25), a piston (26) rod which is arranged in the air cylinder (25) is connected with the piston (26), a screwing nut is connected with the end part of the piston (26) rod, and the screwing nut is in threaded fit with the air cylinder (25).
2. The centrifuge according to claim 1, wherein one end of the air inlet pipe (24) placed in the test tube storage cylinder (23) is connected with a rubber ring (29) matched with the bottom of the test tube.
3. The centrifugal machine according to claim 1, wherein two groups of rectangular holes (30) are formed in the upper end of the machine case (1), two groups of rectangular blocks (31) matched with the rectangular holes (30) are connected to the case cover (3), magnets are connected to the rectangular blocks (31), and opposite magnets matched with the magnets are arranged in the rectangular holes (30).
4. The centrifuge according to claim 1, characterized in that the slow support opening device comprises a damper (32) rotatably connected to the upper end of the casing (1), the other end of the damper (32) being rotatably connected to the casing cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210655582.1A CN115069428B (en) | 2022-06-10 | 2022-06-10 | Centrifugal machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210655582.1A CN115069428B (en) | 2022-06-10 | 2022-06-10 | Centrifugal machine |
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| CN115069428A CN115069428A (en) | 2022-09-20 |
| CN115069428B true CN115069428B (en) | 2023-08-18 |
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| 医用交直流便携式可调节平衡离心机的设计及应用研究;王宝光;于洪波;;医疗卫生装备(第12期);全文 * |
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| CN115069428A (en) | 2022-09-20 |
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