Centrifugal machine with grinding function

Abstract

The utility model belongs to the technical field of sample separation, and particularly relates to a centrifugal machine with a grinding function, which comprises a machine body, a counterweight stabilizing block is fixedly connected to the bottom of the machine body and is used for ensuring the stability of the machine body when the centrifugal machine runs, a machine cover is hinged to the top of the machine body, and lock catch structures are mounted on two sides of the machine cover and the machine body. A centrifugal rotor is rotationally connected into the machine body, and a plurality of centrifugal channels are formed in the surface of the centrifugal rotor; according to the utility model, the driver drives the centrifugal rotor to rotate, so that when the arc-shaped bulge II rotates to the arc-shaped bulge I, the arc-shaped bulge II can jack up the protection seat and the centrifugal tube above the arc-shaped bulge I, and then a sample in the centrifugal tube and the crusher are driven to do axial reciprocating motion together, and in the process, the sample is ground and crushed.

Description

Technical Field

[0001] The utility model relates to the technical field of sample separation, in particular to a centrifuge with a grinding function. Background Art

[0002] In the field of biological detection technology, the basic procedures of detection include several steps such as biological sample collection, biological sample pretreatment, sample detection, and data analysis. Among them, the pretreatment of samples is an important factor affecting the detection results. For biological samples, including animal, plant, food samples, and soil samples. The pretreatment process usually includes several steps such as sample crushing, sample liquid addition and extraction, sample centrifugation separation, and sample purification.

[0003] In the current common technology, these processes are carried out separately. Sample crushing is usually carried out in a grinding machine or a homogenizer. After the sample is crushed and taken out, extraction liquid is added and shaken for extraction, and then it is put into a centrifuge for centrifugation separation. The supernatant after centrifugation separation is used for sample purification. Therefore, multiple devices are required to separately complete operations such as sample crushing and centrifugation.

[0004] There are also technologies that attempt to combine grinding and centrifugation in one device. The technical means adopted are the combination of a grinding module and a centrifugation module. The grinding module is controlled by a separate motor to complete the grinding function. The centrifugation module is controlled by another motor to complete the centrifugation function. This combined device is relatively large and has a complex structure and needs to be improved; therefore, in view of the above problems, a centrifuge with a grinding function is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a centrifuge with a grinding function.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A centrifuge with a grinding function described in the present utility model includes a machine body. A counterweight stabilizing block is fixedly connected to the bottom of the machine body to ensure the stability of the centrifuge body during operation. A machine cover is hinged to the top of the machine body, and a locking structure is installed on both sides of the machine cover and the machine body. A centrifugal rotor is rotatably connected inside the machine body. A plurality of centrifugal channels are formed on the surface of the centrifugal rotor. Centrifuge tubes are placed inside the centrifugal channels. Crushing particles are placed inside the centrifuge tubes. A centrifugal component is installed inside the machine body. The grinding and centrifugal component includes a plurality of electric push rods, a driver, and a protective seat. The electric push rods are fixedly installed at the bottom of the machine body, and the driving ends of the electric push rods are fixedly connected to a grinding disc. The grinding disc is annular. A plurality of arc-shaped protrusions I are equidistantly arranged on the top of the grinding disc. The driver is fixedly installed at the center of the bottom of the machine body, and the driving end of the driver is fixedly connected to the centrifugal rotor. The protective seat is slidably installed at the bottom of the centrifugal channel, and an arc-shaped protrusion II is arranged at the bottom of the protective seat. During use, the sample to be centrifuged is placed in the centrifuge tube, extraction liquid is added, and a certain amount of crushing particles are added. Subsequently, the centrifuge tube is placed in the centrifugal channel and the machine cover is closed. The electric push rods are operated to drive the grinding disc and the arc-shaped protrusions I to rise. The driver is operated to drive the centrifugal rotor to rotate. Through the cooperation of the arc-shaped protrusion I and the arc-shaped protrusion II, when the arc-shaped protrusion II rotates to the arc-shaped protrusion I, it can lift the protective seat and the centrifuge tube above, thereby driving the sample and the crushing particles in the centrifuge tube to perform axial reciprocating motion together. During this process, the sample is ground and crushed.

[0007] Preferably, the arc-shaped protrusion I is located on the rotation trajectory of the arc-shaped protrusion II.

[0008] Preferably, the protective seat includes a base and a support seat. A spring telescopic rod is fixedly connected to the opposite sides of the base and the support seat. The material of the base can be a metal material or a polymer material, preferably a polymer material such as polytetrafluoroethylene, polypropylene, polystyrene, etc. Among them, polytetrafluoroethylene is preferably selected.

[0009] Preferably, the centrifuge tube includes an outer tube body, and a filter cartridge is installed inside the outer tube body. During use, the centrifugal sample to be separated and the collision particles are placed in the filter cartridge. After grinding is completed, the electric push rods contract to drive the grinding disc and the arc-shaped protrusions I to descend. The centrifugal rotor is driven to rotate by the driver, so that the ground and crushed sample is rotationally separated inside the filter cartridge for sample purification. After centrifugation is completed, the centrifuge tube is removed, and the sealing plug and the filter cartridge are removed in sequence. The purified sample passes through the filter cartridge and stays in the outer tube body, thereby realizing the grinding and separation of the sample. By integrating the sample grinding function and the centrifugal separation function into one device, the number and volume of devices are reduced, and operations such as sample grinding and centrifugation can be automatically completed. The steps are simple, and a large amount of labor is saved.

[0010] Preferably, the top of the filter cartridge is open, and the bottom end of the filter cartridge is higher than the bottom end of the outer tube body.

[0011] Preferably, a sealing plug is threadedly connected to the top of the outer tube body. A threaded ring is fixedly connected to the bottom of the sealing plug, and the threaded ring is threadedly connected to the filter cartridge.

[0012] Preferably, a telescopic cylinder is fixedly connected to the top of the sealing plug. A buffer spring is fixedly connected to the opposite ends of the sealing plug and the telescopic cylinder. By pressing down the centrifuge tube and the protection seat by the top cover, the outer tube body is located between the buffer spring and the spring telescopic rod. Thus, when the centrifuge tube moves, corresponding buffering is performed by the buffer spring and the spring telescopic rod, avoiding excessive shaking and damage of the centrifuge tube.

[0013] Preferably, there are multiple types of the filter cartridges according to different surface filter hole diameters.

[0014] Preferably, the crushing particles are made of metal, zirconia, ceramic or quartz.

[0015] Preferably, a control panel is fixedly connected to the outer wall of the machine body. The control panel is a tablet computer integrated with a control system. The control panel is electrically connected to the driver and the electric push rod respectively.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model drives the centrifugal rotor to rotate through the driver, so that when the second arc-shaped protrusion rotates to the first arc-shaped protrusion, the protection seat and the centrifuge tube above can be lifted, thereby driving the samples and the crushing particles in the centrifuge tube to perform axial reciprocating movements together. During this process, the samples are ground and crushed.

[0018] 2. The present utility model connects the filter cartridge with the outer tube body. The centrifugal samples to be separated and the collision particles are placed in the filter cartridge. After grinding is completed, the purified samples pass through the filter cartridge and stay in the outer tube body, thereby realizing the grinding and separation of the samples. By integrating the sample grinding function and the centrifugal separation function into one device, the number and volume of devices are reduced, and operations such as sample grinding and centrifugation can be automatically completed. The steps are simple, and a large amount of labor is saved. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Cross-sectional view of the body of the present utility model;

[0022] Figure 3 Cross-sectional view of the centrifugal rotor of the present utility model;

[0023] Figure 4 For the present utility model Figure 3 Schematic diagram of Structure A;

[0024] Figure 5 Cross-sectional view of the centrifuge tube of the present utility model.

[0025] In the figure: 1, body; 2, machine cover; 3, centrifugal rotor; 4, centrifugal channel; 5, centrifuge tube; 51, outer tube body; 53, filter cartridge; 54, sealing plug; 55, threaded ring; 56, telescopic cylinder; 57, buffer spring; 6, centrifugal assembly; 61, electric push rod; 62, driver; 63, grinding disc; 64, first arc-shaped protrusion; 65, protection seat; 66, second arc-shaped protrusion; 651, base; 652, support seat; 653, spring telescopic rod; 7, control panel. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1

[0028] Please refer to Figures 1-4As shown in the figure, a centrifuge with a grinding function includes a body 1. A counterweight stabilizer is fixedly connected to the bottom of the body 1 to ensure the stability of the centrifuge body during operation. A machine cover 2 is hinged to the top of the body 1, and a locking structure is installed on both sides of the machine cover 2 and the body 1 to fix the machine cover 2. A centrifugal rotor 3 is rotatably connected inside the body 1. A number of centrifugal channels 4 are provided on the surface of the centrifugal rotor 3. Centrifuge tubes 5 are placed inside the centrifugal channels 4, and crushing particles are placed inside the centrifuge tubes 5. A centrifugal component 6 is installed inside the body 1. The grinding and centrifugal component 6 includes a number of electric push rods 61, a driver 62, and a protection seat 65. The electric push rods 61 are fixedly installed at the bottom of the body 1, and the driving ends of the electric push rods 61 are fixedly connected to a grinding disc 63. The grinding disc 63 is annular, and a number of arc-shaped protrusions 64 are equidistantly arranged on the top of the grinding disc 63. The driver 62 is fixedly installed at the center of the bottom of the body 1, and the driving end of the driver 62 is fixedly connected to the centrifugal rotor 3. The protection seat 65 is slidably installed at the bottom of the centrifugal channel 4, and an arc-shaped protrusion 66 is provided at the bottom of the protection seat 65. During use, the sample to be centrifuged is placed in the centrifuge tube 5, extraction liquid is added, and a certain amount of crushing particles are added. Then, the centrifuge tube 5 is placed in the centrifugal channel 4 and the machine cover 2 is closed. The electric push rod 61 is operated to drive the grinding disc 63 and the arc-shaped protrusion 64 to rise. The driver 62 is operated to drive the centrifugal rotor 3 to rotate, and through the cooperation of the arc-shaped protrusion 64 and the arc-shaped protrusion 66, when the arc-shaped protrusion 66 rotates to the arc-shaped protrusion 64, the protection seat 65 and the centrifuge tube 5 above can be lifted, thereby driving the sample and the crushing particles in the centrifuge tube 5 to move axially repeatedly. During this process, the sample is ground and crushed.

[0029] The arc-shaped protrusion 64 is located on the rotation trajectory of the arc-shaped protrusion 66.

[0030] The protection seat 65 includes a base 651 and a support seat 652. A spring telescopic rod 653 is fixedly connected to the opposite sides of the base 651 and the support seat 652. The material of the base 651 can be a metal material or a polymer material, preferably a polymer material, such as polytetrafluoroethylene, polypropylene, polystyrene, etc. Among them, polytetrafluoroethylene is preferred.

[0031] Embodiment 2

[0032] Comparing with Embodiment 1, please refer to Figure 5As shown in the figure, the present utility model provides another embodiment. The centrifuge tube 5 includes an outer tube body 51, and a filter cartridge 53 is installed inside the outer tube body 51. During use, the centrifugation sample to be separated and the collision particles are placed in the filter cartridge 53. After grinding is completed, the electric push rod 61 contracts, driving the grinding disc 63 and the first arc-shaped protrusion 64 to descend. The centrifugal rotor 3 is driven to rotate by the driver 62, so that the ground and broken sample is rotated and thrown out from the inside of the filter cartridge 53 for sample purification. After centrifugation is completed, the centrifuge tube 5 is removed, and then the sealing plug 54 and the filter cartridge 53 are removed in sequence. The purified sample passes through the filter cartridge 53 and stays in the outer tube body 51, thereby realizing the grinding and separation of the sample. By integrating the sample grinding function and the centrifugal separation function into one device, the number and volume of devices are reduced, and operations such as sample grinding and centrifugation can be automatically completed. The steps are simple, and a large amount of labor is saved.

[0033] The top of the filter cartridge 53 is open, and the bottom end of the filter cartridge 53 is higher than the bottom end of the outer tube body 51.

[0034] The top of the outer tube body 51 is threadedly connected with a sealing plug 54. The bottom of the sealing plug 54 is fixedly connected with a threaded ring 55, and the threaded ring 55 is threadedly connected with the filter cartridge 53.

[0035] The top of the sealing plug 54 is fixedly connected with a telescopic cylinder 56. The opposite ends of the sealing plug 54 and the telescopic cylinder 56 are fixedly connected with a buffer spring 57. By pressing down the centrifuge tube 5 and the protection seat 65 by the top cover, the outer tube body 51 is located between the buffer spring 57 and the spring telescopic rod 653. Then, when the centrifuge tube 5 moves, corresponding buffering is performed through the buffer spring 57 and the spring telescopic rod 653 to prevent the centrifuge tube 5 from shaking excessively and being damaged.

[0036] There are various types of filter cartridges 53 according to different surface filter hole diameters.

[0037] The crushing particles are made of metal, zirconia, ceramic or quartz.

[0038] The outer wall of the machine body 1 is fixedly connected with a control panel 7. The control panel 7 is a tablet computer integrated with a control system. The control panel 7 is electrically connected to the driver 62 and the electric push rod 61.

[0039] Working principle: When in use, the centrifugal sample to be separated and the collision particles are placed in the filter cartridge 53, and the extraction solution is added, and the height of the extraction solution is higher than the bottom end of the filter cartridge 53. Then, the centrifuge tube 5 is placed in the centrifugal channel 4 and the machine cover 2 is closed. The electric push rod 61 is operated to drive the grinding disc 63 and the first arc-shaped protrusion 64 to rise. The driver 62 is operated to drive the centrifugal rotor 3 to rotate, and through the cooperation of the first arc-shaped protrusion 64 and the second arc-shaped protrusion 66, when the second arc-shaped protrusion 66 rotates to the first arc-shaped protrusion 64, it can lift the protective seat 65 and the centrifuge tube 5 above, thereby driving the sample and the crushing particles in the centrifuge tube 5 to make repeated axial movements. During this process, the sample is ground and crushed.

[0040] After grinding is completed, the electric push rod 61 contracts to drive the grinding disc 63 and the first arc-shaped protrusion 64 to descend. The centrifugal rotor 3 is driven to rotate by the driver 62, so that the ground and crushed sample is rotated and thrown out from the inside of the filter cartridge 53 for sample purification. After centrifugation is completed, the centrifuge tube 5 is removed, and the sealing plug 54 and the filter cartridge 53 are removed in sequence. The purified sample passes through the filter cartridge 53 and stays in the outer tube body 51, thereby realizing the grinding and separation of the sample. By integrating the sample grinding function and the centrifugal separation function into one device, the number and volume of devices are reduced, and operations such as sample grinding and centrifugation can be automatically completed. The steps are simple, and a large amount of labor is saved.

[0041] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A centrifuge with a grinding function, comprising a body (1), a cover (2) hingedly connected to the top of the body (1), and locking structures installed on both sides of the cover (2) and the body (1), characterized in that: A centrifugal rotor (3) is rotatably connected inside the machine body (1), a plurality of centrifugal channels (4) are provided on the surface of the centrifugal rotor (3), a centrifugal tube (5) is placed inside the centrifugal channel (4), a crusher is placed inside the centrifugal tube (5), a centrifugal assembly (6) is installed inside the machine body (1), the centrifugal assembly (6) comprises a plurality of electric push rods (61), a driver (62) and a protective seat (65), the electric push rod (61) is fixedly mounted on the bottom of the machine body (1), and a grinding disc (63) is fixedly connected to the driving end of the electric push rod (61), and a plurality of arc-shaped protrusions (64) are equidistantly arranged on the top of the grinding disc (63), the driver (62) is fixedly mounted at the center of the bottom of the machine body (1), and the driving end of the driver (62) is fixedly connected to the centrifugal rotor (3), the protective seat (65) is slidably mounted on the bottom of the centrifugal channel (4), and an arc-shaped protrusion (66) is arranged on the bottom of the protective seat (65).

2. The centrifuge with grinding function according to claim 1, characterized in that: The arc-shaped protrusion one (64) is located on the rotation track of the arc-shaped protrusion two (66).

3. The centrifuge with grinding function according to claim 1, characterized in that: The protection seat (65) comprises a base (651) and a support seat (652), and a spring telescopic rod (653) is fixedly connected to opposite sides of the base (651) and the support seat (652).

4. The centrifuge with grinding function according to claim 1, characterized in that: The centrifuge tube (5) comprises an outer tube body (51), and a filter cartridge (53) is installed inside the outer tube body (51).

5. The centrifuge with grinding function according to claim 4, characterized in that: The top of the filter cartridge (53) is open, and the bottom end of the filter cartridge (53) is higher than the bottom end of the outer tube body (51).

6. The centrifuge with grinding function according to claim 5, characterized in that: The top of the outer tube body (51) is threadedly connected to a sealing plug (54), the bottom of the sealing plug (54) is fixedly connected to a threaded ring (55), and the threaded ring (55) is threadedly connected to the filter cartridge (53).

7. The centrifuge with grinding function according to claim 6, characterized in that: The top of the sealing plug (54) is fixedly connected to a telescopic cylinder (56), and the opposite end of the sealing plug (54) and the telescopic cylinder (56) is fixedly connected to a buffer spring (57).

8. The centrifuge with grinding function according to claim 5, characterized in that: The filter cartridge (53) is provided in various forms according to the different diameters of the filter holes on the surface.

9. The centrifuge with grinding function according to claim 1, characterized in that: The crusher is made of metal, zirconium oxide, ceramic or quartz.

10. The centrifuge with grinding function according to claim 1, characterized in that: A control panel (7) is fixedly connected to the outer wall of the machine body (1).

Images