A desktop low-speed centrifuge

Abstract

The utility model belongs to the technical field of centrifuges, and in particular to a desktop low-speed centrifuge. Aiming at the problems that the installation of a centrifugal turntable of the existing desktop low-speed centrifuge is not convenient enough, and the centrifugal turntable needs to be replaced according to the size of the centrifuge tube to be used, the following scheme is proposed, which comprises an outer shell, the outer shell further comprises a top cover hinged to the top of the outer shell, the top cover is used to cover the opening of the outer shell, the outer shell further comprises a centrifugal tank body fixedly installed inside the outer shell, the centrifugal tank body is used to provide a space for centrifuging a centrifuge tube containing a solution. In the utility model, the desktop low-speed centrifuge cooperates with a limit rod, a limit ball and an arc groove, and the user can directly press the turntable to complete the installation, the operation is simple, and the method of fixing with a nut is compatible, the use effect is good, and a detachable and replaceable placement tube is provided at the same time, and the user can replace the placement tube at any time, which is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a desktop low-speed centrifuge. Background Art

[0002] The separation technology of desktop low-speed centrifuge is a new technology developed based on the state of particles in a practical centrifugal occasion. Particles of different density, size or shape settle in centrifugal occasions of different speeds, so a generally spherical non-uniform mixture can be separated by centrifugation.

[0003] However, the existing desktop low-speed centrifuge still has the following problems when in use:

[0004] When installing the turntable of an existing desktop low-speed centrifuge, it is usually necessary to use a wrench to tighten the nut to fix the turntable. The installation operation is relatively troublesome, and tools are also required during installation, which is not convenient to use.

[0005] When centrifuge tubes of different specifications need to be installed in the existing desktop low-speed centrifuge, the entire turntable needs to be disassembled, and a centrifuge turntable with a suitable placement slot needs to be selected and installed again, which is not convenient to use.

[0006] In view of the above problems, the utility model document proposes a desktop low-speed centrifuge. Utility Model Content

[0007] The utility model aims to solve the shortcomings of the prior art that the centrifugal turntable of a desktop low-speed centrifuge is not convenient to install and the centrifugal turntable needs to be replaced according to the size of the centrifuge tube to be used, and a desktop low-speed centrifuge is proposed.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A desktop low-speed centrifuge, comprising:

[0010] The shell further comprises a top cover hinged to the top of the shell, the top cover is used to cover the opening of the shell, the shell further comprises a centrifugal tank body fixedly installed inside the shell, the centrifugal tank body is used to provide a space for centrifuging a centrifuge tube containing a solution;

[0011] It also includes a turntable, which is arranged in the centrifugal tank body, and the turntable also includes a plurality of first placement tubes and a plurality of second placement tubes, and the plurality of first placement tubes and the second placement tubes are used to place the centrifugal tubes;

[0012] It also includes a motor, which is fixedly embedded in the bottom inner wall of the shell, and one end of the output shaft of the motor is fixedly installed with a rotating shaft, and one end of the rotating shaft rotates through the bottom of the centrifugal tank body and extends into the centrifugal tank body, and the motor is used to drive the turntable to rotate;

[0013] It also includes a fixing assembly, which is used to complete the rapid installation of the turntable.

[0014] In a possible design, the fixing assembly includes a fixing plate fixedly mounted on the outer wall of the rotating shaft, the fixing plate is located below the turntable, the turntable is sleeved on the outer wall of the rotating shaft, a plurality of limiting holes are opened on the turntable, a plurality of limiting rods are fixedly mounted on the top of the fixing plate, and the plurality of limiting rods all pass through the corresponding limiting holes.

[0015] In a possible design, grooves are provided inside the plurality of limit rods, and limit balls are slidably arranged inside the grooves. A spring is fixedly installed on the inner wall of one side of the grooves, and the other end of the spring is fixedly connected to the limit balls. Arc-shaped grooves are provided inside the plurality of limit holes, and the plurality of limit balls cooperate with the corresponding arc-shaped grooves.

[0016] In a possible design, a plurality of clearance grooves are opened in the turntable, and corresponding installation grooves are opened on the inner walls on both sides of the clearance grooves. The two corresponding installation grooves are matched with the first placement tube and the second placement tube, and the installation grooves are used to complete the installation of the first placement tube and the second placement tube.

[0017] In a possible design, a thread is provided at a position of the rotating shaft near the top end for normal installation of a fixing nut.

[0018] In a possible design, a control panel is provided on one side of the housing, and the control panel is used to facilitate a user to operate the device.

[0019] In the present application, when using, the user first needs to complete the installation of the turntable. When installing, first put the turntable on the rotating shaft, then align multiple limit rods with the corresponding limit holes and insert them. When inserting, the edge of the limit hole will squeeze the limit ball on the limit rod. At this time, press the turntable slightly, and the limit ball will be squeezed back. At this time, the limit rod can be smoothly inserted into the limit hole, and then the limit ball can slide along the inner wall of the limit hole until the limit ball moves to the arc-shaped groove position inside the limit hole. Under the action of the spring, the limit ball will be stuck in the arc-shaped groove to fix the turntable; at the same time, the top of the rotating shaft is opened With threads, users can still fix the turntable by fixing the nut; then users can choose the first placement tube or the second placement tube for installation according to needs, install the first placement tube or the second placement tube through the installation groove, and then symmetrically place the centrifuge tubes filled with solution into the corresponding placement tubes, close the top cover, and start centrifugation; users can control the start of the motor through the control panel, and then drive the turntable to rotate, which can drive multiple centrifuge tubes to complete centrifugation in the centrifuge tank; the device is convenient for the installation of the turntable, simple to operate, and can freely select the appropriate placement tube for replacement, which has a good centrifugal effect.

[0020] In the utility model, the desktop low-speed centrifuge is fixed by a fixing assembly, by using a limiting rod, a limiting ball and an arc-shaped groove, and the user can directly press the turntable to complete the installation, which is simple to operate, has a good fixing effect on the turntable, and is compatible with a nut fixing method, and has a good use effect;

[0021] In the utility model, the desktop low-speed centrifuge is provided with a detachable placement tube, and the user can replace the placement tube at any time, and is provided with a replaceable placement tube, and the user can choose to use it according to the needs, which can reduce the number of times the turntable is disassembled and installed, and is convenient for use;

[0022] In the utility model, the desktop low-speed centrifuge uses the limit rod, the limit ball and the arc groove to cooperate, and the user can directly press the turntable to complete the installation. The operation is simple, the fixing effect of the turntable is good, and the nut fixing method is compatible, and the use effect is good. At the same time, a detachable placement tube is provided, and the user can replace the placement tube at any time. A replaceable placement tube is provided, and the user can choose to use it according to the needs, which can reduce the number of times the turntable is disassembled and installed, and is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional structural schematic diagram of a desktop low-speed centrifuge proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a desktop low-speed centrifuge in an open state with a top cover provided by the utility model;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of a desktop low-speed centrifuge proposed by the utility model;

[0026] Figure 4 The utility model is a schematic diagram of the split structure of the turntable and the rotating shaft of a desktop low-speed centrifuge.

[0027] In the figure: 1. outer shell; 2. top cover; 3. centrifugal tank body; 4. motor; 5. rotating shaft; 6. fixing plate; 7. turntable; 8. limiting rod; 9. spring; 10. limiting ball; 11. limiting hole; 12. clearance groove; 13. installation groove; 14. first placement tube; 15. second placement tube; 16. control panel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] Reference Figure 1-4 , a centrifuge, comprising: a housing 1, a turntable 7, a motor 4, and a fixing assembly;

[0031] The housing 1 further comprises a top cover 2 hinged to the top of the housing 1, the top cover 2 is used to cover the opening of the housing 1, the housing 1 further comprises a centrifugal tank body 3 fixedly installed inside the housing 1, the centrifugal tank body 3 is used to provide a space for centrifuging a centrifuge tube containing a solution;

[0032] The turntable 7 is arranged in the centrifugal tank body 3, and the turntable 7 also includes a plurality of first placement tubes 14 and a plurality of second placement tubes 15, and the plurality of first placement tubes 14 and the second placement tubes 15 are used to place the centrifugal tubes;

[0033] Furthermore, a plurality of clearance grooves 12 are provided in the turntable 7, and corresponding installation grooves 13 are provided on the inner walls on both sides of the clearance grooves 12. The two corresponding installation grooves 13 are matched with the first placement tube 14 and the second placement tube 15. The installation grooves 13 are used to complete the installation of the first placement tube 14 and the second placement tube 15. The plurality of installation grooves 13 are all inclined grooves, which can prevent the first placement tube 14 and the second placement tube 15 from being separated during the centrifugation process.

[0034] The motor 4 is fixedly embedded in the bottom inner wall of the housing 1, and a rotating shaft 5 is fixedly installed at one end of the output shaft of the motor 4. One end of the rotating shaft 5 rotates through the bottom of the centrifugal tank body 3 and extends into the centrifugal tank body 3. The motor 4 is used to drive the turntable 7 to rotate;

[0035] The fixing assembly includes a fixing plate 6 fixedly mounted on the outer wall of the rotating shaft 5. The fixing plate 6 is located below the turntable 7. The turntable 7 is sleeved on the outer wall of the rotating shaft 5. A plurality of limiting holes 11 are opened on the turntable 7. A plurality of limiting rods 8 are fixedly mounted on the top of the fixing plate 6. The plurality of limiting rods 8 all pass through the corresponding limiting holes 11. The fixing assembly is used to complete the quick installation of the turntable 7.

[0036] In this embodiment, grooves are provided inside the multiple limit rods 8, and limit balls 10 are slidably arranged inside the grooves. A spring 9 is fixedly installed on the inner wall of one side of the grooves, and the other end of the spring 9 is fixedly connected to the limit ball 10. Arc grooves are provided inside the multiple limit holes 11, and the multiple limit balls 10 are matched with the corresponding arc grooves. The multiple limit balls 10 can ensure a better fixing effect on the turntable 7 and can also improve the installation efficiency of the turntable 7. The user can complete the installation by pressing, and the operation is simple and convenient to use.

[0037] In this embodiment, a thread is provided near the top of the rotating shaft 5 for normal installation of the fixing nut. The user can choose to use it according to actual conditions to ensure a better fixing effect on the turntable 7.

[0038] The present application can be used as a desktop low-speed centrifuge, and can also be used in other fields applicable to the present application.

[0039] Example 2

[0040] Reference Figure 1 , 3 4. Improvement based on Example 1: A desktop low-speed centrifuge is used in the field of centrifuge technology. In this embodiment, a control panel 16 is provided on one side of the housing 1, and the control panel 16 is used to facilitate users to operate the device.

[0041] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 4 and the control panel 16 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0042] The working principle and use process of the present technical solution are as follows: when using, the user first needs to complete the installation of the turntable 7. When installing, first put the turntable 7 on the rotating shaft 5, then align the multiple limit rods 8 with the corresponding limit holes 11, and insert them. When inserting, the edge of the limit hole 11 will squeeze the limit ball 10 on the limit rod 8. At this time, press the turntable 7 slightly, and the limit ball 10 will be squeezed back. At this time, the limit rod 8 can be smoothly inserted into the limit hole 11, and then the limit ball 10 can slide along the inner wall of the limit hole 11 until the limit ball 10 moves to the arc-shaped groove position inside the limit hole 11. Under the action of the spring 9, the limit ball 10 will be stuck in the arc-shaped groove to fix the turntable 7. Fixed; at the same time, a thread is provided on the top of the rotating shaft 5, and the user can still fix the turntable 7 by fixing the nut; then the user can choose the first placement tube 14 or the second placement tube 15 for installation according to the need, and install the first placement tube 14 or the second placement tube 15 through the installation groove 13, and then symmetrically place the centrifuge tubes filled with the solution into the corresponding placement tubes, close the top cover 2, and start centrifugation; the user can control the start of the motor 4 through the control panel 16, and then drive the turntable 7 to rotate, which can drive multiple centrifuge tubes to complete centrifugation in the centrifuge tank body 3; the device is convenient for the installation of the turntable 7, simple to operate, and can freely select the appropriate placement tube for replacement, which has a good centrifugal effect.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A desktop low-speed centrifuge, characterized in that: include: A housing (1), the housing (1) further comprising a top cover (2) hinged to the top of the housing (1), the top cover (2) being used to cover the opening of the housing (1), the housing (1) further comprising a centrifuge tank (3) fixedly mounted inside the housing (1), the centrifuge tank (3) being used to provide a space for centrifuging a centrifuge tube containing a solution; It also includes a turntable (7), the turntable (7) being arranged in the centrifugal tank body (3), the turntable (7) also including a plurality of first placement tubes (14) and a plurality of second placement tubes (15), the plurality of first placement tubes (14) and the second placement tubes (15) being used to place the centrifugal tubes; It also comprises a motor (4), the motor (4) being fixedly embedded in the bottom inner wall of the housing (1), a rotating shaft (5) being fixedly mounted on one end of the output shaft of the motor (4), one end of the rotating shaft (5) being rotatably passed through the bottom of the centrifugal tank body (3) and extending into the centrifugal tank body (3), the motor (4) being used to drive the turntable (7) to rotate; The invention also comprises a fixing assembly, which is used for completing the rapid installation of the turntable (7); the fixing assembly comprises a fixing plate (6) fixedly mounted on the outer wall of the rotating shaft (5); the fixing plate (6) is located below the turntable (7); the turntable (7) is sleeved on the outer wall of the rotating shaft (5); a plurality of limiting holes (11) are opened on the turntable (7); a plurality of limiting rods (8) are fixedly mounted on the top of the fixing plate (6); the plurality of limiting rods (8) all pass through the corresponding limiting holes (11).

2. A desktop low-speed centrifuge according to claim 1, characterized in that: A groove is provided inside each of the plurality of limit rods (8), a limit ball (10) is slidably arranged inside the groove, a spring (9) is fixedly installed on an inner wall of one side of the groove, the other end of the spring (9) is fixedly connected to the limit ball (10), an arc groove is provided inside each of the plurality of limit holes (11), and the plurality of limit balls (10) are matched with corresponding arc grooves.

3. A desktop low-speed centrifuge according to claim 2, characterized in that: The turntable (7) is provided with a plurality of clearance grooves (12), and the inner walls on both sides of the clearance grooves (12) are provided with corresponding installation grooves (13). The two corresponding installation grooves (13) are matched with the first placement tube (14) and the second placement tube (15), and the installation grooves (13) are used to complete the installation of the first placement tube (14) and the second placement tube (15).

4. A desktop low-speed centrifuge according to claim 1, characterized in that: The rotating shaft (5) is provided with a thread near the top end for normal installation of the fixing nut.

5. A desktop low-speed centrifuge according to claim 1, characterized in that: A control panel (16) is provided on one side of the housing (1), and the control panel (16) is used to facilitate a user to operate the device.

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