Automatic cover closing device of centrifugal machine

Abstract

The utility model relates to the technical field of centrifugal machines, and discloses an automatic cover closing device of a centrifugal machine. Comprising a cover body, driving wheels and a driving assembly. When the cover body of the centrifugal machine needs to be covered, the driving assembly drives the driving wheel to rotate in the horizontal direction, and due to the fact that the driving wheel is connected with the cover body, the driving wheel rotates to drive the cover body to retract till the cover body completely covers the centrifugal machine. In the retraction process of the cover body, the lock cylinder can be automatically inserted into a lock hole in the centrifugal machine, and locking of the cover body is achieved. When the cover body of the centrifugal machine needs to be opened, the driving assembly drives the driving wheel to reversely rotate in the horizontal direction, and due to the fact that the driving wheel is connected with the cover body, rotation of the driving wheel can drive the cover body to stretch out till the cover body completely leaves the centrifugal machine. In the extending process of the cover body, the lock cylinder can be automatically pulled out of the lock hole in the centrifugal machine, and unlocking of the cover body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, and particularly to an automatic cover closing device for a centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate the components in a mixture of liquid and solid particles or liquid and liquid. The mixture to be separated is usually placed in a centrifuge tube, and the lid is covered on the centrifuge tube during centrifugation. Covering the lid can prevent the mixture from splashing out during centrifugation, and at the same time, it can also maintain the pressure stability inside the centrifuge to ensure the accuracy and safety of the experiment.

[0003] However, as the rotation speed of the centrifuge is too high, it may be necessary to evacuate the centrifuge cavity, and the requirements for the opening and closing convenience and sealing performance of the centrifuge lid are also getting higher and higher. Summary of the Utility Model

[0004] The embodiments of the utility model aim to provide an automatic cover closing device for a centrifuge to solve the technical problems proposed in the prior art.

[0005] The embodiments of the utility model solve its technical problems by adopting the following technical solutions:

[0006] Provide an automatic cover closing device for a centrifuge, including:

[0007] A lid body, which is used to cover the centrifuge, and a lock core is arranged in the middle of the lid body;

[0008] A driving wheel, which is arranged on the lid body;

[0009] A driving component, which is connected to the driving wheel;

[0010] Wherein, the driving component can drive the driving wheel to rotate in the horizontal direction, and then the driving wheel drives the lid body to retract or extend.

[0011] In some embodiments, a driving rod is arranged on the lid body, and a strip-shaped hole is arranged on the driving wheel, and the driving rod passes through the strip-shaped hole.

[0012] In some embodiments, several strip-shaped holes are arranged, and several strip-shaped holes are circumferentially distributed on the driving wheel;

[0013] The number of the driving rods is equal to the number of the strip-shaped holes, and the driving rods are correspondingly arranged with their corresponding strip-shaped holes.

[0014] In some embodiments, several limiting holes are further opened on the driving wheel, and several limiting holes are circumferentially distributed on the driving wheel;

[0015] The driving wheel includes a limiting rod which passes through the limiting hole.

[0016] In some embodiments, an abutting portion is provided at the end of the limiting rod, and the abutting portion abuts against the surface of the limiting wheel.

[0017] In some embodiments, the driving assembly includes a driving member and a connecting member;

[0018] One end of the connecting member is connected to the driving member, and the other end is connected to the driving wheel.

[0019] In some embodiments, the driving member includes a driving lead screw and a driving motor;

[0020] One end of the driving lead screw is connected to the driving motor, and the other end is connected to the connecting member.

[0021] In some embodiments, the shape of the limiting hole is arc-shaped, and the outer arc of the limiting hole is the same as the outer arc of the driving wheel.

[0022] Compared with the prior art, in the centrifuge automatic cover closing device provided by the embodiment of the present invention, when the centrifuge cover needs to be closed, the driving assembly drives the driving wheel to rotate in the horizontal direction. Since the driving wheel is connected to the cover, the rotation of the driving wheel will drive the cover to retract until the cover completely covers the centrifuge. During the retraction of the cover, the lock core will automatically insert into the lock hole on the centrifuge to achieve the locking of the cover. When the centrifuge cover needs to be opened, the driving assembly drives the driving wheel to rotate in the reverse horizontal direction. Since the driving wheel is connected to the cover, the rotation of the driving wheel will drive the cover to extend until the cover completely leaves the centrifuge. During the extension of the cover, the lock core will automatically pull out from the lock hole on the centrifuge to achieve the unlocking of the cover. Through such a setting, the automatic opening and closing of the centrifuge cover can be realized, the automation degree of the centrifuge can be improved, manual operation can be reduced, and the work efficiency can be improved. At the same time, the automatic cover closing device can also improve the safety of the centrifuge and avoid the operator accidentally touching the cover when the centrifuge is running, resulting in injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0024] Figure 1 is a schematic structural diagram of the centrifuge automatic cover closing device provided by one embodiment of the present invention;

[0025] Figure 2It is an exploded schematic view of the automatic cover closing device of the centrifuge provided by one embodiment of the present utility model.

[0026] Reference numerals:

[0027] 100, automatic cover closing device of the centrifuge; 10, cover body; 11, lock core; 12, driving rod; 13, limiting rod; 131, abutting portion; 20, driving wheel; 21, strip hole; 22, limiting hole; 30, driving assembly; 31, driving member; 311, driving lead screw; 312, driving motor; 32, connecting member. Detailed implementation manners

[0028] For the convenience of understanding the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "connected" to another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model.

[0030] The following will be combined with Figures 1 to 2 , and the automatic cover closing device of the centrifuge provided by the embodiments of the present application will be described in detail through specific embodiments.

[0031] Please refer to Figures 1 to 2 , Figure 1 It is a structural schematic view of the automatic cover closing device of the centrifuge provided by one embodiment of the present utility model; Figure 2It is an exploded schematic diagram of the automatic cover closing device of a centrifuge provided by one embodiment of the present utility model. The automatic cover closing device 100 of the centrifuge provided by one embodiment of the present utility model includes a cover body 10, a driving wheel 20, and a driving assembly 30. The cover body 10 is used to cover the centrifuge, and a lock core 11 is provided in the middle of the cover body 10; the driving wheel 20 is arranged on the cover body 10; the driving assembly 30 is connected to the driving wheel 20; wherein, the driving assembly 30 can drive the driving wheel 20 to rotate in the horizontal direction, and then the driving wheel 20 drives the cover body 10 to retract or extend.

[0032] When it is necessary to cover the centrifuge cover body 10, the driving assembly 30 drives the driving wheel 20 to rotate in the horizontal direction. Since the driving wheel 20 is connected to the cover body 10, the rotation of the driving wheel 20 will drive the cover body 10 to retract until the cover body 10 completely covers the centrifuge. During the retraction of the cover body 10, the lock core 11 will automatically insert into the lock hole on the centrifuge to achieve the locking of the cover body 10. When it is necessary to open the centrifuge cover body 10, the driving assembly 30 drives the driving wheel 20 to rotate in the reverse horizontal direction. Since the driving wheel 20 is connected to the cover body 10, the rotation of the driving wheel 20 will drive the cover body 10 to extend until the cover body 10 completely leaves the centrifuge. During the extension of the cover body 10, the lock core 11 will automatically pull out from the lock hole on the centrifuge to achieve the unlocking of the cover body 10. Through such a setting, the automatic opening and closing of the centrifuge cover body 10 can be realized, the automation degree of the centrifuge can be improved, manual operation can be reduced, and the work efficiency can be improved. At the same time, the automatic cover closing device can also improve the safety of the centrifuge and prevent the operator from accidentally touching the cover body 10 when the centrifuge is running, resulting in injury.

[0033] In some embodiments, a driving rod 12 is provided on the cover body 10, and a strip-shaped hole 21 is provided on the driving wheel 20, and the driving rod 12 passes through the strip-shaped hole 21.

[0034] When the driving assembly 30 drives the driving wheel 20 to rotate in the horizontal direction, the strip-shaped hole 21 on the driving wheel 20 will move along the direction of the driving rod 12. Since the driving rod 12 is fixed on the cover body 10, the rotation of the driving wheel 20 will drive the cover body 10 to retract or extend. At the same time, the setting of the strip-shaped hole 21 can also limit the rotation angle of the driving wheel 20, making the retraction and extension of the cover body 10 more accurate. Through such a setting, the rotation of the driving wheel 20 can be made more stable, and at the same time, the retraction and extension of the cover body 10 can also be made more stable.

[0035] In some embodiments, a plurality of strip-shaped holes 21 are provided, and the plurality of strip-shaped holes 21 are circumferentially distributed on the driving wheel 20; the number of driving rods 12 is equal to the number of strip-shaped holes 21, and the driving rods 12 are correspondingly arranged with the strip-shaped holes 21 corresponding thereto. By providing a plurality of strip-shaped holes 21 on the cover body 10 and circumferentially distributing the plurality of strip-shaped holes 21 on the driving wheel 20, the rotation of the driving wheel 20 will be more stable, so that the retraction and extension of the cover body 10 can be more stable.

[0036] In some embodiments, a plurality of limiting holes 22 are further formed on the driving wheel 20, and the plurality of limiting holes 22 are circumferentially distributed on the driving wheel 20; the driving wheel 20 includes a limiting rod 13, and the limiting rod 13 is inserted through the limiting holes 22.

[0037] When the driving wheel 20 rotates, the limiting holes 22 will synchronously rotate with the driving wheel 20, and when the driving wheel 20 rotates to a certain angle in the horizontal direction, the hole wall of the limiting hole 22 abuts against the rod wall of the limiting rod 13, thereby restricting the driving wheel 20 from continuing to rotate. Through such a setting, the continuous rotation of the driving wheel 20 can be restricted, so that the cover body 10 is locked or fully opened.

[0038] In some embodiments, an abutting portion 131 is provided at the end of the limiting rod 13, and the abutting portion 131 abuts against the surface of the limiting wheel. The abutting portion 131 abuts against the surface of the driving wheel 20, and can connect the driving wheel 20 and the cover body 10 to prevent the driving wheel 20 from falling off.

[0039] In some embodiments, the driving assembly 30 includes a driving member 31 and a connecting member 32; one end of the connecting member 32 is connected to the driving member 31, and the other end is connected to the driving wheel 20.

[0040] The driving member 31 is usually a motor, a cylinder or a hydraulic cylinder, etc., and it can generate a driving force. One end of the connecting member 32 is connected to the driving member 31, and the other end is connected to the driving wheel 20. The driving force is transmitted to the driving wheel 20 through the connecting member 32.

[0041] When the driving member 31 works, it drives the connecting member 32 to move, and the connecting member 32 then drives the driving wheel 20 to rotate. The rotation of the driving wheel 20 can cause the cover body 10 to retract or extend, so as to realize the automatic cover closing operation of the centrifuge. Through such a setting, the power transmission between the driving member 31 and the driving wheel 20 can be realized, and the position and angle of the driving wheel 20 can be adjusted as required.

[0042] In some embodiments, the driving member 31 includes a driving lead screw 311 and a driving motor 312; one end of the driving lead screw 311 is connected to the driving motor 312, and the other end is connected to the connecting member 32.

[0043] The driving motor 312 converts rotational motion into linear motion through the driving lead screw 311. The pitch of the driving lead screw 311 determines the moving distance of the connecting member 32, thereby enabling precise control of the stroke of the driving wheel 20. When the driving motor 312 rotates, the driving lead screw 311 rotates accordingly, and the connecting member 32 moves axially under the action of the driving lead screw 311. The movement of the connecting member 32 drives the driving wheel 20 to perform corresponding movements, realizing the opening and closing of the cover body 10. By using the combination of the driving lead screw 311 and the driving motor 312, precise position control and speed adjustment can be achieved, which is applicable to the automatic cover-closing device 100 of a centrifuge with high requirements for cover-closing accuracy and stability.

[0044] In some embodiments, the shape of the limiting hole 22 is arc-shaped, and the outer arc of the limiting hole 22 is the same as the outer arc of the driving wheel 20.

[0045] By setting the shape of the limiting hole 22 to be arc-shaped and the outer arc of the limiting hole 22 to be the same as the outer arc of the driving wheel 20, the driving wheel 20 can be limited while not affecting its rotation.

[0046] It should be particularly noted that the automatic cover-closing device 100 of the centrifuge provided in the embodiments of the present invention only shows the parts related to the technical problems to be solved in the embodiments of the present invention. It can be understood that the automatic cover-closing device 100 provided in the embodiments of the present invention further includes other structures for realizing the functions of the automatic cover-closing device 100 of the centrifuge, which will not be elaborated one by one here.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic cover closing device for a centrifuge, characterized in that, Including: A cover body which is used to cover a centrifuge, and a lock core is arranged in the middle of the cover body; A driving wheel which is arranged on the cover body; A driving assembly which is connected to the driving wheel; Wherein, the driving assembly can drive the driving wheel to rotate in the horizontal direction, and then the driving wheel drives the cover body to retract or extend.

2. The centrifuge automatic lid closing device according to claim 1, wherein A driving rod is arranged on the cover body, a strip-shaped hole is arranged on the driving wheel, and the driving rod passes through the strip-shaped hole.

3. The automatic lid closing device of the centrifuge according to claim 2, wherein A plurality of the strip-shaped holes are arranged, and the plurality of strip-shaped holes are circumferentially distributed on the driving wheel; The number of the driving rods is equal to the number of the strip-shaped holes, and the driving rods are correspondingly arranged with their corresponding strip-shaped holes.

4. The automatic cover closing device for a centrifuge according to claim 3, characterized in that, A plurality of limiting holes are also formed on the driving wheel, and the plurality of limiting holes are circumferentially distributed on the driving wheel; The driving wheel includes a limiting rod which passes through the limiting hole.

5. The automatic cover closing device for a centrifuge according to claim 4, wherein, An abutting portion is arranged at the end of the limiting rod, and the abutting portion abuts against the surface of the driving wheel.

6. The automatic cover closing device of a centrifuge according to claim 5, characterized in that, The driving assembly includes a driving member and a connecting member; One end of the connecting member is connected to the driving member, and the other end is connected to the driving wheel.

7. The centrifuge automatic lid closing device according to claim 6, characterized in that The driving member includes a driving lead screw and a driving motor; One end of the driving lead screw is connected to the driving motor, and the other end is connected to the connecting member.

8. The automatic cover closing device of a centrifuge according to claim 4, characterized in that, The shape of the limiting hole is arc-shaped, and the outer arc of the limiting hole is the same as the outer arc of the driving wheel.

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