Magnetic attraction modular cubic centrifuge tube rack
The magnetic modular cubic centrifuge tube rack solves the problems of limited functionality and space occupation of centrifuge tube racks, enabling flexible splicing and combination of centrifuge tubes of various sizes, thereby improving experimental efficiency and space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED HOSPITAL OF JIANGNAN UNIV
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing centrifuge racks have limited functionality, fixed specifications, poor spatial adaptability, and cannot be flexibly adjusted, resulting in cumbersome experimental operations, low efficiency, and the occupation of laboratory space.
A magnetic modular cubic centrifuge tube rack is designed, which uses a six-sided adjustable cubic shell and a powerful magnet. The magnetic components enable flexible splicing and combination of centrifuge tubes of various sizes, and the magnetic poles can be rotated and adjusted to adapt to different experimental needs.
It enables flexible placement of centrifuge tubes of various sizes, improves experimental efficiency, simplifies operation, optimizes space utilization, and reduces purchase and storage costs.
Smart Images

Figure CN224405182U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of experimental equipment design, specifically relating to a magnetically pleasing modular cubic centrifuge tube rack. Background Technology
[0002] In biological and chemical experimental fields, centrifuge racks are indispensable laboratory equipment. Currently, mainstream centrifuge racks generally suffer from problems such as limited functionality, fixed specifications, and poor space adaptability. Firstly, traditional centrifuge racks typically only accommodate centrifuge tubes of a single size; for example, 50ml and 15ml centrifuge tubes require dedicated racks. In complex experimental scenarios, when multiple sizes of centrifuge tubes need to be used simultaneously, researchers must frequently change racks or prepare multiple racks of different sizes, resulting in cumbersome and inefficient operations. Secondly, existing centrifuge racks are fixed in size and shape, unable to be flexibly adjusted according to actual needs such as the number of experimental samples and available workbench space. In laboratory spaces with limited capacity, fixed-size centrifuge racks not only occupy a significant amount of space but may also cause inconvenience due to their inability to adapt to experimental requirements, severely impacting the smoothness of experimental procedures and the effective utilization of laboratory space.
[0003] Patent CN215353569U proposes a splicable double-sided centrifuge tube rack. It features different sized insertion hole diameters on both sides, and the grooves and protrusions on the sides of the racks allow for splicing, enabling arbitrary combinations. However, this centrifuge tube rack cannot be freely spliced from any side; it can only be spliced from the side with the grooves or protrusions, which is inflexible. Furthermore, each centrifuge tube rack is suitable for a fixed size of centrifuge tubes, failing to meet the needs of a single rack accommodating multiple sizes. Utility Model Content
[0004] The present invention aims to solve the problems existing in the prior art and provide a magnetically attached modular cubic centrifuge tube rack.
[0005] The technical solution of this utility model:
[0006] A magnetically attached modular cubic centrifuge tube rack includes a cubic centrifuge tube rack housing and a magnetic attachment component 2;
[0007] The cubic centrifuge tube rack shell has slots for placing centrifuge tubes of different sizes on its six sides;
[0008] The cube centrifuge tube rack shell has an embedded groove 1 at the fixed position on the edge or surface for installing the magnetic component 2;
[0009] The magnetic suction component 2 includes a magnet rotating shaft 3 and a powerful magnet 4. The magnet rotating shaft 3 is rotatably connected to the embedded groove 1. The powerful magnet 4 is set in the middle of the magnet rotating shaft 3. The powerful magnet 4 includes N pole and S pole. The planes of the N pole and S pole can be flexibly converted and spliced with the magnetic poles of the adjacent cubic centrifuge tube rack shell.
[0010] Furthermore, the different specifications of centrifuge tubes include eight specifications: 50ml, 15ml, 10ml, 5ml, 2ml, 1.5ml, 0.5ml, and 0.2ml.
[0011] Furthermore, the outer shell of the cubic centrifuge tube rack is made of high-strength, corrosion-resistant material, preferably polypropylene or ABS engineering plastic.
[0012] Furthermore, a single cubic centrifuge tube rack shell serves as the basic unit, and different cubic centrifuge tube rack shells can be freely assembled.
[0013] Furthermore, the powerful magnet 4 is a neodymium magnet. This enables the cubic centrifuge tube rack shells to be firmly joined together by magnetic attraction.
[0014] Multiple cubic centrifuge tube rack shells are connected via magnetic attraction components 2. When two cubic centrifuge tube rack shells are brought close together, the magnetic force generated by the magnetic attraction components 2 allows them to be tightly attracted together. By rotating the axis of the magnet, the direction of the magnetic poles can be changed, thus easily adjusting the connection method and combination shape between the cubic centrifuge tube rack shells. For example, when it is necessary to expand the centrifuge tube rack laterally to accommodate more centrifuge tubes, the cubic centrifuge tube rack shells can be horizontally spliced by adjusting the magnetic poles; if the experimental table space is limited and centrifuge tube racks need to be stacked vertically, the vertical splicing can be achieved by changing the direction of the magnetic poles.
[0015] The beneficial effects of this utility model are:
[0016] (a) Diversified functions
[0017] Highly integrated and flexible functionality: Traditional centrifuge tube racks have limited functionality, while this magnetic modular cubic centrifuge tube rack's six cube faces accommodate eight common centrifuge tube sizes, breaking the limitation of single-size racks. Researchers no longer need to frequently change centrifuge tube racks of different sizes; multiple sizes of centrifuge tubes can be placed and operated on a single cube, greatly improving experimental efficiency and meeting diverse needs in complex experimental scenarios.
[0018] (ii) Flexible and scalable
[0019] Ease of operation and high adaptability: Utilizing a magnetic design and a rotating magnetic axis, the powerful magnets are mounted with non-fixed polarity. Users can easily change the orientation of the N and S poles by manually rotating the magnets on the axis, thus achieving precise control of the magnetic attraction between adjacent cubic units and ensuring flexible and reliable connections. This centrifuge rack can be modularly assembled to meet experimental needs. Whether it's needing to increase the number of centrifuge tubes or changing the shape of the rack to adapt to different lab bench layouts, this can be achieved simply by assembling multiple cubes. Compared to traditional fixed-size centrifuge racks, this flexible and expandable feature significantly improves the applicability of the rack, making experimental operations more convenient and efficient.
[0020] (III) Space Optimization
[0021] Maximizing Space Utilization: The six-sided magnetic design combined with modular assembly allows for flexible assembly of centrifuge racks to suit various experimental space requirements. When laboratory space is limited, cubic centrifuge racks can be stacked vertically to fully utilize vertical space; when the work surface is spacious, they can be expanded horizontally. This effectively solves the problem of traditional centrifuge racks occupying excessive experimental space due to their fixed size, improving laboratory space utilization and creating a more rational and comfortable environment for experimental operations.
[0022] (iv) Saving on purchase and storage costs:
[0023] Save on purchase and storage costs: There is no need to purchase and store large quantities of traditional pipe racks of single specifications or fixed sizes. One set of pipe racks can flexibly adapt to most situations, significantly reducing purchase and storage costs. Attached Figure Description
[0024] Figure 1 An exploded view of each face of the cubic centrifuge tube rack shell.
[0025] Figure 2 This is a three-dimensional view of the outer shell of a cubic centrifuge tube rack.
[0026] Figure 3 This is a schematic diagram of the assembly of three cubic centrifuge tube rack shells.
[0027] Figure 4 Detailed diagram of the magnetic connection between the outer shells of two cubic centrifuge tube racks.
[0028] Figure 5 This is a schematic diagram of the magnetic attraction component.
[0029] Figure 6 This is an assembly diagram of the cubic centrifuge tube rack housing and magnetic suction components.
[0030] In the diagram: 1. Embedded groove; 2. Magnetic component; 3. Magnet rotating shaft; 4. Powerful magnet. Detailed Implementation
[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0032] As attached Figure 1 As shown, there are currently eight commonly used centrifuge tube sizes on the market: 0ml, 15ml, 10ml, 5ml, 2ml, 1.5ml, 0.5ml, and 0.2ml. The 15ml and 10ml tubes have the same diameter and can share a common placement slot; similarly, the 0.5ml and 0.2ml tubes also have the same diameter and can share a common placement slot. Therefore, the six sides can accommodate all eight types of centrifuge tubes. Each placement slot is precisely sized to securely hold the corresponding centrifuge tubes, preventing them from shaking or falling off during experiments.
[0033] A magnetically attached modular cubic centrifuge tube rack includes a cubic centrifuge tube rack shell and a magnetic attachment assembly 2. The six sides of the cubic centrifuge tube rack shell have slots for placing centrifuge tubes of different sizes; the edges or fixed positions of the cubic centrifuge tube rack shell shell are provided with embedded grooves 1 for mounting the magnetic attachment assembly 2. Figure 4 , Figure 5 , Figure 6 As shown, the magnetic suction assembly 2 includes a magnetic rotating shaft 3 and a powerful magnet 4. The magnetic rotating shaft 3 is rotatably connected to the embedded groove 1 via a shaft hole. The powerful magnet 4 is fixedly installed in the middle of the magnetic rotating shaft 3. The powerful magnet 4 is a short, thick cylinder with an N pole and a S pole. The two bottom surfaces of the short, thick cylinder are the corresponding N pole and S pole planes. The rotation of the magnetic rotating shaft 3 within the embedded groove 1 allows for flexible switching between the N pole and the S pole, and enables splicing with the magnetic poles of the adjacent cubic centrifuge tube rack shell. (See attached image) Figure 2 As shown, the centrifuge tube specifications can be selected according to requirements. In this embodiment, the outer shell of the cubic centrifuge tube rack is made of polypropylene. The powerful magnet 4 is a neodymium magnet.
[0034] As attached Figure 3 As shown, a single cubic centrifuge tube rack shell is the basic unit, and different cubic centrifuge tube rack shells can be freely spliced together.
[0035] In practical use, researchers can select a suitable cubic centrifuge rack to hold the centrifuge tubes according to the specifications required for the current experiment. When experimental needs change, requiring an increase or decrease in the capacity of the centrifuge rack, or an adjustment of the rack's shape to fit the experimental space, multiple cubic centrifuge racks can be quickly and flexibly modularly assembled using the magnetic attraction component 2 and the magnet rotation axis. By rotating the magnet's rotation axis 3 to change the magnetic poles, the magnetic attraction components 2 between different cubes attract each other, thereby achieving stable splicing and forming a centrifuge rack combination that meets the experimental requirements.
Claims
1. A magnetically pleasing modular cubic centrifuge tube rack, characterized in that, Includes a cubic centrifuge tube rack housing and a magnetic assembly (2); The cubic centrifuge tube rack shell has slots for placing centrifuge tubes of different sizes on its six sides; The cube centrifuge tube rack shell has an embedded groove (1) at the fixed position of the edge or surface for installing the magnetic component (2); The magnetic suction assembly (2) includes a magnet rotating shaft (3) and a strong magnet (4). The magnet rotating shaft (3) is rotatably connected to the embedded groove (1). A strong magnet (4) is provided in the middle of the magnet rotating shaft (3). The strong magnet (4) includes an N pole and an S pole. The planes of the N pole and the S pole can be flexibly converted and spliced with the magnetic poles of the adjacent cubic centrifuge tube rack shell.
2. The magnetically attached modular cubic centrifuge tube rack according to claim 1, characterized in that, The centrifuge tubes of different specifications include eight sizes: 50ml, 15ml, 10ml, 5ml, 2ml, 1.5ml, 0.5ml, and 0.2ml.
3. The magnetically attached modular cubic centrifuge tube rack according to claim 1, characterized in that, The outer shell of the cubic centrifuge tube rack is made of polypropylene or ABS engineering plastic.
4. The magnetically attached modular cubic centrifuge tube rack according to claim 1, characterized in that, A single cubic centrifuge tube rack shell serves as the basic unit, and different cubic centrifuge tube rack shells can be freely assembled.
5. A magnetically pleasing modular cubic centrifuge tube rack according to claim 1, characterized in that, The powerful magnet (4) is a neodymium magnet; it enables the outer shells of the cubic centrifuge tube rack to be firmly spliced together by magnetic attraction.