Low-cost simple magnetic frame
By using the structure of foamed plastic modules and strip magnets, the existing magnetic shelf has high cost and limited use problems, and a low-cost, flexible adaptation and efficient operation of magnetic shelf is achieved.
Patent Information
- Application Number
- CN202421177422.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing magnetic shelves are cost-effective to manufacture, limited use and time-consuming to operate.
The structure of foam plastic module and strip magnet is spliced, and the integrated magnetic shelf is formed by double-sided adhesive and transparent tape, achieving low cost and flexible adaptation.
The manufacturing cost of the magnetic stand is reduced, the flexibility of use and operation efficiency is improved, and the bar magnets are reusable.
Smart Images
Figure CN222490132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of analysis and detection equipment, in particular to a low-cost simple magnetic frame. Background Art
[0002] When analyzing environmental, food, and biological samples, the samples need to be pretreated. Magnetic solid phase extraction (MSPE) uses magnetic or magnetizable materials as extractants. It has the advantages of simple and fast operation, high recovery rate, and low consumption of organic solvents. It has been widely used in recent years. When separating the extractant from the sample, the sample tube needs to be placed on a magnetic rack. The magnetic adsorption parts in the magnetic rack can collect the magnetic extractant and then absorb the liquid. After desorbing the analyte adsorbed on the extractant, a magnetic rack is also needed to separate the extractant from the desorption liquid.
[0003] Existing magnetic racks are generally made of plastic materials through one-piece injection molding or 3D printing. They are expensive to produce and cost hundreds or even thousands of yuan. A single magnetic rack can usually only accommodate sample tubes of a single specification; the number of sample tube holes is fixed; and the built-in magnets have fixed magnetic force, which takes a long time to attract weakly magnetic extractants; after magnetic separation, a straw is needed to remove the liquid sample, which is time-consuming. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a low-cost simple magnetic frame, which is used to solve the problems of high manufacturing cost, limited use and time-consuming operation of the magnetic frame in the prior art.
[0005] The utility model provides a low-cost simple magnetic frame, comprising two end foam plastic modules, a plurality of internal foam plastic modules, a plurality of bar magnets and a cardboard, wherein both ends of one side of the end foam plastic module are provided with an arc groove, and both ends of both sides of the internal foam plastic module are provided with an arc groove; the bottoms of the end foam plastic module and the internal foam plastic module are both pasted on the cardboard through double-sided adhesive tape; the bottom and both sides of the bar magnet are pasted on the end foam plastic module, the internal foam plastic module and the cardboard through double-sided adhesive tape, the arc grooves of the same head of the end foam plastic module and the internal foam plastic module form sample tube holes correspondingly, the arc grooves of the same head of two adjacent internal foam plastic modules form sample tube holes correspondingly, and the arc grooves are not completely closed to form a window for observing the magnetic attraction state in the sample tube; the cardboard is located at the bottom of the end foam plastic module, the internal foam plastic module and the bar magnet to support the end foam plastic module, the internal foam plastic module, the bar magnet and the sample tube; the end foam plastic module, the internal foam plastic module, the bar magnet and the cardboard are wrapped with transparent tape to form a whole.
[0006] The beneficial effects of the utility model are as follows: by adopting a structure of splicing foam plastic modules and bar magnets, the manufacturing cost of the magnetic frame is greatly reduced, the foam plastic modules and cardboard are both recycled, the cost of the magnetic frame is basically the cost of the bar magnet, and the bar magnet can still be reused after the service life is reached; the structure is convenient for setting sample tube holes of different sizes and numbers according to various usage requirements; the size and magnetic specifications of the bar magnet can also be set as needed, and flexibly match the experimental needs; the sample tube is placed close to the bar magnet, and the magnetic attraction effect is good. At the same time, after the magnetic attraction is over, the magnetic frame can be directly inverted to pour out the internal solution; the arc-shaped groove is not completely closed, and is wrapped with transparent tape. The front side of the sample tube hole is transparent, which is convenient for observing the magnetic attraction inside the sample tube.
[0007] Preferably, the end foam plastic module and the internal foam plastic module are made of soft foam plastic, which is soft and elastic and not easy to break.
[0008] Preferably, the bar magnet is made of a strong neodymium iron boron magnet, which has strong magnetism and is not easily broken.
[0009] Preferably, the radius of the arc-shaped grooves on the end foam plastic modules and the inner foam plastic modules is slightly smaller than the radius of the sample tube, so as to facilitate clamping the sample tube between the foam plastic modules.
[0010] Preferably, when the transparent tape is wrapped around the magnetic frame, the adhesive surface should first be faced inwards and wrapped around the upper, lower, left and right four surfaces for multiple turns to fix the end foam plastic module with the bar magnet inside and the internal foam plastic module on the cardboard, and then the adhesive surface should be faced outwards and wrapped around the front, back, left and right four surfaces for one turn to fix, and finally the adhesive surface should be faced inwards and wrapped around the front, back, left and right four surfaces for multiple turns to fix. This wrapping operation can prevent the sample tube from being adhered to the tape in the hole, prevent the sample tube from being put in and taken out smoothly, and cause inconvenience in operation.
[0011] Preferably, an opening is provided on the transparent tape above the sample tube hole, so that the sample tube can enter the sample tube hole through the opening, thereby facilitating the sample tube to enter the sample tube hole and improving the insertion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall structure of the low-cost simple magnetic frame of the utility model;
[0013] Figure 2 It is a top view of the low-cost simple magnetic frame of the utility model;
[0014] Figure 3 It is a schematic diagram of the vertical cross-section structure of the middle part of the low-cost simple magnetic frame of the utility model;
[0015] Figure 4 This is a schematic diagram of the use of the low-cost simple magnetic frame of the utility model;
[0016] The numbers in the accompanying drawings are: 1. end foam plastic module; 2. internal foam plastic module; 3. bar magnet; 4. cardboard; 5. arc-shaped groove; 6. double-sided tape; 7. sample tube hole; 8. window; 9. transparent tape; 10. sample tube. DETAILED DESCRIPTION
[0017] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0018] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0019] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0020] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] See also Figures 1 to 4The embodiment of the present application discloses a low-cost simple magnetic frame, comprising two end foam plastic modules 1, a plurality of internal foam plastic modules 2, a plurality of bar magnets 3 and a piece of cardboard 4, wherein both ends of one side of the end foam plastic module 1 are provided with an arc groove 5, and both ends of both sides of the internal foam plastic module 2 are provided with an arc groove 5; the bottoms of the end foam plastic module 1 and the internal foam plastic module 2 are both pasted on the cardboard 4 by double-sided adhesive tape 6; the bottom and both sides of the bar magnet 3 are pasted on the end foam plastic module 1, the internal foam plastic module 2 and the cardboard 4 by double-sided adhesive tape 6, and the end foam plastic module 1 and the internal foam plastic module 2 are both pasted on the cardboard 4 by double-sided adhesive tape 6. The arc groove 5 of the same head of the foam plastic module 2 forms a sample tube hole 7 correspondingly, and the arc groove 5 of the same head of two adjacent internal foam plastic modules 2 forms a sample tube hole 7 correspondingly, and the arc groove 5 is not completely closed, forming a window 8 for observing the magnetic attraction state in the sample tube 10; the cardboard 4 is located at the bottom of the end foam plastic module 1, the internal foam plastic module 2 and the bar magnet 3, to support the end foam plastic module 1, the internal foam plastic module 2, the bar magnet 3 and the sample tube 10; the end foam plastic module 1, the internal foam plastic module 2, the bar magnet 3 and the cardboard 4 are wrapped with a transparent tape 9 to form a whole. The magnetic frame can achieve the purpose of placing different numbers of sample tubes 10 by splicing the end foam plastic module 1, different numbers of internal foam plastic modules 2 and bar magnets 3.
[0022] In this embodiment, the end foam plastic module 1 and the internal foam plastic module 2 are made of soft foam plastic, which is soft and elastic and not easy to break.
[0023] In this embodiment, the material of the bar magnet 3 is a strong neodymium iron boron magnet, which has strong magnetism and is not easy to break.
[0024] In this embodiment, the radius of the arc-shaped groove 5 on the end foam plastic module 1 and the inner foam plastic module 2 is slightly smaller than the radius of the sample tube 10, thereby facilitating the clamping of the sample tube 10 between the foam plastic modules.
[0025] In this embodiment, when the transparent tape 9 wraps the magnetic frame, it is necessary to first wrap the end foam plastic module 1 with the bar magnet 3 clamped inside and the internal foam plastic module 2 with the adhesive surface facing inward for multiple turns around the four surfaces, and then wrap the front, back, left and right sides of the magnetic frame with the adhesive surface facing outward for one turn around the four surfaces, and finally wrap the front, back, left and right sides with the adhesive surface facing inward for multiple turns around the four surfaces. This wrapping operation can prevent the sample tube 10 from being adhered to the tape in the hole, prevent the sample tube 10 from being inserted and removed smoothly, and cause inconvenience in operation.
[0026] In this embodiment, an opening is provided on the transparent tape 9 above the sample tube hole 7 to allow the sample tube 10 to enter the sample tube hole 7 through the opening, thereby facilitating the sample tube 10 to enter the sample tube hole 7 and improving the insertion efficiency.
[0027] The installation principle of the utility model is as follows: first, two end foam plastic modules 1 and a plurality of internal foam plastic modules 2 are cut out according to the size of the bar magnet 3 and the diameter of the sample tube 10, and arc grooves 5 are cut out at both ends of one side of the end foam plastic module 1 and both ends of both sides of the internal foam plastic module 2, and then a layer of double-sided tape 6 is pasted on the bottom of the end foam plastic module 1 and the internal foam plastic module 2; a piece of cardboard 4 is prepared, the width of which is cut to be the same as that of the end foam plastic module 1 and the internal foam plastic module 2, and the length is cut to the estimated required length; a plurality of bar magnets 3 are prepared, and a layer of double-sided tape 6 is pasted on the bottom and both sides thereof; an end foam plastic module 1 is pasted on the left side of the cardboard 4, with the side without the arc groove 5 facing left, and a bar magnet 3 is pasted on the right side of the end foam plastic module 1, and the bottom of the bar magnet 3 is pasted on the cardboard 4 at the same time. On the top, take another internal foam plastic module 2, and paste its left side to the right side of the bar magnet 3, and paste its bottom to the cardboard 4. Similarly, multiple bar magnets 3 and internal foam plastic modules 2 can be assembled until the requirements are met, and then paste an end foam plastic module 1 on the rightmost side to end; all the end foam plastic modules 1, internal foam plastic modules 2 and bar magnets 3 are pressed tightly from both ends by hand, and the length of the cardboard 4 is cut according to the length, and then the transparent tape 9 is first used to wrap the upper, lower, left and right four surfaces with the adhesive surface facing inward for multiple turns to form all the components into a whole, and then the adhesive surface is faced outward to wrap the front, back, left and right four surfaces for one turn to fix, and finally the adhesive surface is inward to wrap the front, back, left and right four surfaces for multiple turns to fix; after all the fixation is completed, a cross opening is cut on the transparent tape 9 above the sample tube hole 7 by a blade to open the tape, and the sample tube 10 can be placed into the sample tube hole 7.
[0028] The use process of the utility model for MSPE experiment is as follows: add magnetic extraction material and sample solution containing target analyte into sample tube 10, cover the bottle cap, use a shaker or hand shake for a certain period of time to perform extraction, after the extraction is completed, insert the sample tube 10 into the sample tube hole 7, wait for a few minutes for the solution to become clear, open the bottle cap, invert the magnetic frame to pour out the solution, take out the sample tube 10, add solvent to analyze the target analyte adsorbed on the extraction material, after the analysis is completed, insert the sample tube 10 into the sample tube hole 7 again, observe through the window 8, and after the analysis solvent becomes clear and transparent, use a glass pipette to take out the analysis solvent and put it into a brown sample bottle for the next step of detection.
[0029] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.
[0030] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A low-cost simple magnetic frame, characterized by: The invention comprises two end foam plastic modules (1), a plurality of internal foam plastic modules (2), a plurality of bar magnets (3) and a cardboard (4), wherein the two ends of one side of the end foam plastic module (1) are each provided with an arc-shaped groove (5), and the two ends of both sides of the internal foam plastic module (2) are each provided with an arc-shaped groove (5); the bottoms of the end foam plastic module (1) and the internal foam plastic module (2) are both adhered to the cardboard (4) by double-sided adhesive tape (6); the bottom and both sides of the bar magnet (3) are adhered to the end foam plastic module (1), the internal foam plastic module (2) and the cardboard (4) by double-sided adhesive tape (6); the arc-shaped grooves of the same ends of the end foam plastic module (1) and the internal foam plastic module (2) are both adhered to the cardboard (4) by double-sided adhesive tape (6); The grooves (5) form sample tube holes (7) in correspondence, and the arc-shaped grooves (5) of the same head of two adjacent internal foam plastic modules (2) form sample tube holes (7) in correspondence, and the arc-shaped grooves (5) are not completely closed, forming a window (8) for observing the magnetic attraction state in the sample tube (10); the cardboard (4) is located at the bottom of the end foam plastic module (1), the internal foam plastic module (2) and the bar magnet (3) to support the end foam plastic module (1), the internal foam plastic module (2), the bar magnet (3) and the sample tube (10); the end foam plastic module (1), the internal foam plastic module (2), the bar magnet (3) and the cardboard (4) are wrapped with a transparent tape (9) to form a whole.
2. The low-cost simple magnetic frame according to claim 1, characterized in that: The end foam plastic module (1) and the internal foam plastic module (2) are made of soft foam plastic.
3. The low-cost simple magnetic frame according to claim 1, characterized in that: The material of the bar magnet (3) is a strong neodymium iron boron magnet.
4. The low-cost simple magnetic frame according to claim 1, characterized in that: The radius of the arc-shaped groove (5) on the end foam plastic module (1) and the inner foam plastic module (2) is slightly smaller than the radius of the sample tube (10).
5. The low-cost simple magnetic frame according to claim 1, characterized in that: When the transparent adhesive tape (9) is wrapped around the magnetic frame, it is necessary to first wrap the adhesive surface inwards around the four upper, lower, left and right surfaces for multiple turns to fix the end foam plastic module (1) with the bar magnet (3) inside and the internal foam plastic module (2) on the cardboard (4), then wrap the adhesive surface outwards around the four front, back, left and right surfaces of the magnetic frame for one turn to fix it, and finally wrap the adhesive surface inwards around the four front, back, left and right surfaces for multiple turns to fix it.
6. The low-cost simple magnetic frame according to claim 5, characterized in that: An opening is provided on the transparent adhesive tape (9) above the sample tube hole (7) so that the sample tube (10) can enter the sample tube hole (7) through the opening.