Protective mechanism for centrifugal machine

Abstract

The protection mechanism for the centrifugal machine comprises a centrifugal machine shell, a top cover is fixedly connected to the upper portion of the centrifugal machine shell, a rubber pad is fixedly connected to the upper portion of the centrifugal machine shell, an extrusion plate is connected to the interior of the top cover in a sliding mode, a plurality of lifting columns are fixedly connected to the upper portion of the extrusion plate, and driving assemblies are connected to the upper portions of the lifting columns in a threaded mode. A first top partition plate and a lower side partition plate are fixedly connected into the top cover, the lifting column is slidably connected to the inner side of the lower side partition plate, the driving assembly comprises a plurality of synchronous wheel assemblies, a synchronous belt and a driving screw rod, the synchronous wheel assemblies are rotatably connected to the upper portion of the first top partition plate, and the lower portions of the synchronous wheel assemblies are fixedly connected to the top of the driving screw rod. The lower end of the driving screw is in threaded connection into the lifting column; by rotating the synchronous wheel assembly, the plurality of driving screws are driven by the synchronous belt to rotate synchronously, so that the lifting columns move downwards at the same time, and the extrusion plate uniformly extrudes the rubber pad. Uniform sealing is achieved, the structure is simple, and the sealing effect can still be guaranteed after repeated use.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a protective mechanism for centrifuges. Background Technology

[0002] Although low-speed centrifuges operate at low speeds, their rotating components still possess high kinetic energy. If the rotor becomes unbalanced, the centrifuge tubes rupture, or if there are operational errors (such as failure to disconnect the power for maintenance or forcibly opening the lid), serious accidents such as flying debris, broken shafts, loss of control, or limb crushing may occur. When using existing low-speed centrifuges, gaps may appear after the protective cover is closed, allowing outside air to enter the centrifuge and affecting the stability of experimental conditions, which may lead to inaccurate experimental results.

[0003] A search revealed a Chinese patent with publication number CN222624884U, which discloses a low-speed centrifuge with a protective structure, including a centrifuge body and a protective cover. The protective cover is located on the top left side of the centrifuge body, and two connecting blocks are located on the right side of the protective cover. A control device is located on the right side of the connecting blocks, and two support blocks are located on the right side of the control device. A control slot for use with the control device is opened on the top right side of the centrifuge body.

[0004] To address the issue of uneven sealing due to unstable movement of the sealing components in the aforementioned technologies, which may result in uneven sealing after repeated use, a protective mechanism for centrifuges is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a protective mechanism for centrifuges to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: it includes a centrifuge housing, a top cover is fixedly connected to the top of the centrifuge housing, a rubber pad is fixedly connected to the top of the centrifuge housing, a pressing plate is slidably connected inside the top cover, a plurality of lifting columns are fixedly connected above the pressing plate, and a drive assembly is threadedly connected above the lifting columns.

[0007] In some embodiments, a top partition and a lower partition are fixedly connected inside the top cover, and a lifting column is slidably connected to the inside of the lower partition.

[0008] In some embodiments, the drive assembly includes a timing pulley assembly, a timing belt, and a drive screw. A plurality of timing pulley assemblies are rotatably connected to the top of a top partition. The lower part of the timing pulley assembly is fixedly connected to the top of the drive screw. The lower end of the drive screw is threadedly connected to the inside of the lifting column. The plurality of timing pulley assemblies are connected in pairs by the timing belt.

[0009] In some embodiments, springs are fixedly connected to the bottom of the lower partition and the top of the extrusion plate, and a knob is fixedly connected to the top of one side of the synchronous pulley assembly.

[0010] In some embodiments, a limit slot is provided on the upper side of the centrifuge housing, a rotating plate is rotatably connected to the top of the top cover, and a rotating buckle is fixedly connected below the rotating plate.

[0011] In some embodiments, a centrifuge support is rotatably connected inside the centrifuge housing, a centrifuge motor is fixedly connected to the bottom of the centrifuge housing, and a drive shaft is fixedly connected below the centrifuge support. The drive shaft and the power output end of the centrifuge motor are meshed with each other.

[0012] In some embodiments, a buffer pad is fixedly connected to one side of the centrifuge housing, and a protective shell is fixedly connected below the buffer pad.

[0013] In some embodiments, a bottom support platform is fixedly connected to the bottom of the centrifuge housing, and multiple hydraulic spring buffers are fixedly connected to the bottom support platform and the inner wall of the protective shell.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] This application utilizes a rotating synchronous pulley assembly, which drives multiple drive screws to rotate synchronously via a synchronous belt. This causes the lifting column to move downwards simultaneously, and the extrusion plate evenly compresses the rubber pad. This achieves a uniform seal, has a simple structure, and maintains its sealing effect even after multiple uses.

[0016] The top cover is fixed by inserting the rotating buckle into the limiting slot and rotating it to prevent rotation. Then, the squeezing plate seals the top cover, making it stable, easy to operate, and preventing the top cover from shifting during the sealing process.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the main view of the structure of this utility model.

[0020] Figure 2This is a cross-sectional view of the bottom shell of this utility model.

[0021] Figure 3 This is a diagram showing the internal structure of the cover plate of this utility model.

[0022] Figure 4 This is a partially exploded structural diagram of the present invention.

[0023] Figure 5 This is a cross-sectional view of the cover plate of this utility model.

[0024] Figure label:

[0025] 1. Protective shell; 2. Centrifuge housing; 3. Top cover; 4. Buffer pad; 5. Rotating plate; 6. Knob; 7. Drive shaft; 8. Centrifuge motor; 9. Bottom support platform; 10. Hydraulic spring buffer; 11. Top partition one; 12. Synchronous pulley assembly; 13. Synchronous belt; 14. Centrifuge support; 15. Rubber pad; 16. Rotating buckle plate; 17. Limiting slot; 18. Lower partition; 19. Extrusion plate; 20. Lifting column; 21. Spring; 22. Drive screw. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1:

[0029] like Figure 1-5 As shown, the centrifuge protective mechanism includes a centrifuge housing 2, a top cover 3 fixedly connected to the top of the centrifuge housing 2, a rubber pad 15 fixedly connected to the top of the centrifuge housing 2, a compression plate 19 slidably connected inside the top cover 3, the compression plate 19 is made of hard rubber, a plurality of lifting columns 20 are fixedly connected above the compression plate 19, and a drive assembly is threadedly connected above the lifting columns 20.

[0030] The top cover 3 is internally fixedly connected to a top partition 11 and a lower partition 18, and the lifting column 20 is slidably connected to the inside of the lower partition 18; the drive assembly includes a synchronous pulley assembly 12, a synchronous belt 13 and a drive screw 22, multiple synchronous pulley assemblies 12 are rotatably connected to the top of the top partition 11, the lower part of the synchronous pulley assembly 12 is fixedly connected to the top of the drive screw 22, the lower end of the drive screw 22 is threadedly connected to the inside of the lifting column 20, and multiple synchronous pulley assemblies 12 are connected in pairs through the synchronous belt 13.

[0031] Before using the centrifuge, first rotate the top cover 3 to cover the top of the centrifuge housing 2, and then rotate the synchronous pulley assembly 12. Driven by multiple synchronous belts 13, the multiple synchronous pulley assemblies 12 rotate, causing the drive screw 22 below to rotate synchronously, which can drive the multiple lifting columns 20 below to move downwards at the same time.

[0032] This allows the extrusion plate 19 to press down on the rubber pad 15, sealing the upper middle part of the centrifuge housing 2. Because the extrusion plate 19 is driven downward evenly by multiple fulcrums, the sealing effect is more uniform, and the structure is simple, ensuring the sealing effect even after multiple uses.

[0033] In this embodiment, a spring 21 is fixedly connected to the bottom of the lower partition 18 and the top of the extrusion plate 19, and a knob 6 is fixedly connected to the top of the synchronous wheel assembly 12 on one side. The spring 21 allows the extrusion plate 19 to be pulled up and moved into the top cover 3 when the lifting column 20 is not driven downward. The knob 6 can facilitate the driving of the synchronous wheel assembly 12.

[0034] In this embodiment, a limiting slot 17 is opened on the upper side of the centrifuge housing 2, a rotating plate 5 is rotatably connected to the top of the top cover 3, and a rotating buckle 16 is fixedly connected below the rotating plate 5.

[0035] The rotating buckle 16 can be inserted into the limiting slot 17 and then rotated to fix the top cover 3 and prevent the top cover 3 from rotating. Then it can be sealed by the pressing plate 19.

[0036] In this embodiment, a centrifuge support 14 is rotatably connected inside the centrifuge housing 2, a centrifuge motor 8 is fixedly connected to the bottom of the centrifuge housing 2, a drive shaft 7 is fixedly connected below the centrifuge support 14, and bevel gears are respectively installed on the power output ends of the drive shaft 7 and the centrifuge motor 8, and the drive shaft 7 and the centrifuge motor 8 mesh with each other.

[0037] The centrifugal motor 8 can drive the drive shaft 7 to rotate, which in turn drives the uppermost centrifugal support 14 to rotate for centrifugation.

[0038] In this embodiment: Before using the centrifuge, first rotate the top cover 3 to cover the top of the centrifuge housing 2, and then rotate the synchronous wheel assembly 12. Driven by multiple synchronous belts 13, multiple synchronous wheel assemblies 12 rotate, causing the drive screw 22 below to rotate synchronously, which can drive multiple lifting columns 20 below to move downwards simultaneously.

[0039] This allows the extrusion plate 19 to press down on the rubber pad 15, sealing the upper middle part of the centrifuge housing 2. Because the extrusion plate 19 is driven downward evenly by multiple fulcrums, the sealing effect is more uniform, and the structure is simple, ensuring the sealing effect even after multiple uses.

[0040] Spring 21 allows the lifting column 20 to be pulled up and moved upward into the top cover 3 when it is not driven downward. Knob 6 can easily drive the synchronous wheel assembly 12. Rotating buckle 16 can be inserted into the limiting slot 17 and then rotated to fix the top cover 3 and prevent the top cover 3 from rotating. Then it can be sealed again by the squeezing plate 19.

[0041] The centrifugal motor 8 can drive the drive shaft 7 to rotate, which in turn drives the uppermost centrifugal support 14 to rotate for centrifugation.

[0042] Example 2:

[0043] The protective mechanism for centrifuges, in this embodiment, is improved upon embodiment 1 by the following improvements: Figure 1-5 As shown,

[0044] In this embodiment, a buffer pad 4 is fixedly connected to one side of the centrifuge housing 2, and a protective shell 1 is fixedly connected below the buffer pad 4.

[0045] The cushioning pad 4 is made of rubber and can provide vibration damping.

[0046] A bottom support platform 9 is fixedly connected to the bottom of the centrifuge housing 2. Multiple hydraulic spring dampers 10 are fixedly connected to the bottom support platform 9 and the inner wall of the protective shell 1. The bottom support platform 9 is also made of rubber. The multiple hydraulic spring dampers 10 can absorb lateral vibrations and make the device more stable when it is working.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A protective mechanism for a centrifuge, comprising a centrifuge housing (2), characterized in that: A top cover (3) is fixedly connected to the top of the centrifuge housing (2), a rubber pad (15) is fixedly connected to the top of the centrifuge housing (2), an extrusion plate (19) is slidably connected inside the top cover (3), a plurality of lifting columns (20) are fixedly connected above the extrusion plate (19), and a drive assembly is threadedly connected above the lifting columns (20).

2. The centrifuge protective mechanism according to claim 1, characterized in that: The top cover (3) is fixedly connected to a top partition (11) and a lower partition (18), and the lifting column (20) is slidably connected to the inside of the lower partition (18).

3. The centrifuge protective mechanism according to claim 2, characterized in that: The drive assembly includes a synchronous pulley assembly (12), a synchronous belt (13), and a drive screw (22). Multiple synchronous pulley assemblies (12) are rotatably connected above the top partition (11). The lower part of the synchronous pulley assembly (12) is fixedly connected to the top of the drive screw (22). The lower end of the drive screw (22) is threadedly connected to the inside of the lifting column (20). Multiple synchronous pulley assemblies (12) are connected in pairs through the synchronous belt (13).

4. The centrifuge protective mechanism according to claim 3, characterized in that: A spring (21) is fixedly connected to the bottom of the lower partition (18) and the top of the extrusion plate (19), and a knob (6) is fixedly connected to the top of the synchronous pulley assembly (12) on one side.

5. The centrifuge protective mechanism according to claim 1, characterized in that: The centrifuge housing (2) has a limit slot (17) on the upper side, and a rotating plate (5) is rotatably connected to the top of the top cover (3). A rotating buckle (16) is fixedly connected below the rotating plate (5).

6. The centrifuge protective mechanism according to claim 1, characterized in that: The centrifuge housing (2) is rotatably connected to a centrifuge support (14), and a centrifuge motor (8) is fixedly connected to the bottom of the centrifuge housing (2). A drive shaft (7) is fixedly connected below the centrifuge support (14), and the power output ends of the drive shaft (7) and the centrifuge motor (8) mesh with each other.

7. The centrifuge protective mechanism according to claim 2, characterized in that: A buffer pad (4) is fixedly connected to one side of the centrifuge housing (2), and a protective shell (1) is fixedly connected below the buffer pad (4).

8. The centrifuge protective mechanism according to claim 7, characterized in that: The bottom of the centrifuge housing (2) is fixedly connected to a bottom support platform (9), and multiple hydraulic spring buffers (10) are fixedly connected to the bottom support platform (9) and the inner wall of the protective shell (1).

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