Molecular biological sample fresh-keeping device

Abstract

The utility model relates to the technical field of sample preservation, in particular to a molecular biological sample preservation device which comprises a preservation box, the rear end of the top of the preservation box is movably connected with a cover plate through a hinge, positioning grooves are formed in the left end and the right end of the cover plate, and sealing heat preservation plates are arranged on the inner sides of the positioning grooves. A buckling groove is formed in one side of the sealing heat preservation plate, a plurality of sealing plates distributed at equal intervals are movably connected to the rear end of the top of the cover plate through hinges, handles are fixedly connected to the front ends of the tops of the sealing plates, and visible observation windows are arranged on the inner surfaces of the sealing plates. Through cooperation of structures, the device has the advantage of being good in preservation effect, and the problems that an existing molecular biological preservation device adopts an ice block cooling mode to conduct low-temperature preservation, but the low-temperature preservation temperature of molecular biological sample preservation is usually below zero DEG C, so that the preservation time of samples is very short, and the preservation effect is poor are solved. And the sample is easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of sample preservation technology, specifically a molecular biological sample preservation device. Background Technology

[0002] Biology refers to living organisms with kinetic energy, and is also a collection of objects. Individual organisms refer to living organisms, as opposed to non-living things. When studying related organisms, biological samples are usually taken for analysis. Therefore, biological samples need to be stored in specific preservation devices to prevent sample deterioration from affecting the detection results and research progress.

[0003] Currently, utility model patent CN221498876U discloses a molecular biological preservation device, belonging to the field of biological preservation technology. It includes: a preservation box with a hinged sealing cover at the top, a retrieval and placement component on the sealing cover, a lock body on one side of the preservation box, symmetrical handles on the upper surface of the sealing cover, an insulation layer inside the preservation box, an isolation plate fixedly installed inside the preservation box, water-permeable holes on the upper surface of the isolation plate, a water storage chamber inside the preservation box, and a storage box fixedly installed at the center of the upper surface of the isolation plate. The retrieval and placement component allows for the opening of the corresponding sealing cover by pulling a push block when items need to be retrieved or placed inside, eliminating the need to open the entire sealing cover, reducing the escape of cold air, and avoiding drastic temperature fluctuations. A fan circulates the cold air inside the preservation box, resulting in a more uniform temperature and improved preservation effect.

[0004] However, the existing molecular biological preservation devices use ice to cool down the samples for low-temperature preservation. However, the low-temperature preservation temperature for molecular biological samples is usually below zero degrees Celsius, which results in a very short preservation time and makes the samples easy to be damaged. Therefore, we propose a molecular biological sample preservation device. Utility Model Content

[0005] The purpose of this invention is to provide a molecular biological sample preservation device with the advantage of good preservation effect. It solves the problem that existing molecular biological preservation devices use ice to cool down for low-temperature preservation, but the low-temperature preservation temperature of molecular biological samples is usually below zero degrees, which results in a very short preservation time and easy damage to the samples.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molecular biological sample preservation device, comprising a preservation box, a cover plate movably connected to the rear end of the top of the preservation box via a hinge, positioning grooves being provided at both ends of the cover plate, a sealing and heat-insulating plate being provided inside the positioning groove, a snap-fit ​​groove being provided on one side of the sealing and heat-insulating plate, multiple equidistantly distributed sealing plates being movably connected to the rear end of the top of the cover plate via a hinge, a handle being fixedly connected to the front end of the top of the sealing plate, a viewing window being provided on the inner surface of the sealing plate, a heat-insulating layer being provided on the inner surface of the preservation box, a heat dissipation cavity being provided at the lower end of the left side of the preservation box, a heat-conducting plate being embedded in the top of the heat dissipation cavity, a cooling fin being embedded in the bottom of the inner cavity of the preservation box, multiple equidistantly distributed semiconductor cooling chips being provided between the cooling fin and the heat-conducting plate, a fixing frame being fixedly connected to the upper end of the inner cavity of the preservation box, and multiple limiting sleeves being fixedly connected to the inner side of the fixing frame.

[0007] Preferably, handles are fixedly installed on the upper ends of both the left and right sides of the food storage box, and buckles are fixedly installed between the cover and the left and right ends of the front of the food storage box.

[0008] Preferably, a battery box is fixedly installed at the middle of the rear side of the food storage box.

[0009] Preferably, the bottom of the heat-conducting plate is fixedly connected to heat dissipation fins, the hot side of the semiconductor refrigeration chip is in contact with the heat-conducting plate, and the cold side of the semiconductor refrigeration chip is in contact with the refrigeration fins.

[0010] Preferably, a rubber ring is provided on the inner side of the limiting sleeve, and a positioning rib is fixedly connected to the bottom of the limiting sleeve.

[0011] Preferably, a rotating rod is movably connected to the right end of the bottom of the inner cavity of the preservation box via a bearing, and a mixing impeller and a drive impeller are fixedly connected to the top and bottom of the rotating rod.

[0012] Preferably, a cooling fan corresponding to the heat dissipation cavity is fixedly installed at the lower right end of the food preservation box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model improves the insulation performance of the device by using an insulation layer and a sealing insulation plate. The semiconductor cooling chip allows for rapid cooling of the inside of the refrigerator via cooling fins, while the heat generated by the hot side of the chip is transferred outwards via a heat-conducting plate and heat dissipation fins, achieving effective heat dissipation. When a molecular biological sample needs to be removed, the sealing insulation plate moves outwards within the positioning slot via the locking groove. Simultaneously, the moving sealing insulation plate seals the positioning slot. At this time, the operator can observe the placement of the molecular biological sample through the viewing window. Once the required sample is determined, the sealing plate is opened via the corresponding handle, allowing for sample placement and removal. After completion, the sealing insulation plate returns to its original position. This minimizes the adverse effects of the external environment on the device's interior, reduces cold air dissipation and energy consumption, and is beneficial for user convenience.

[0015] 2. This utility model, through the setting of the cooling fan, can draw external air into the cooling cavity to blow on the cooling fins, thereby accelerating the heat dissipation efficiency of the cooling fins. The air flow drawn by the cooling fan can drive the rotating rod and the mixing impeller to rotate via the drive impeller. When the mixing impeller rotates, it can draw air flow inside the refrigerator, which is conducive to maintaining a balanced low-temperature environment inside the refrigerator. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the third-view cross-sectional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation structure between the fixing frame and the limiting sleeve of this utility model.

[0020] In the diagram: 1. Fresh food container; 2. Hook and latch; 3. Lid; 4. Handle; 5. Observation window; 6. Snap groove; 7. Sealing insulation board; 8. Handle; 9. Cooling fan; 10. Battery box; 11. Limiting sleeve; 12. Positioning groove; 13. Rubber ring; 14. Sealing plate; 15. Fixing frame; 16. Insulation layer; 17. Mixed flow impeller; 18. Rotating rod; 19. Drive impeller; 20. Semiconductor cooling chip; 21. Heat conduction plate; 22. Cooling fin plate; 23. Heat dissipation fins; 24. Heat dissipation cavity; 25. Positioning rib. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] The components of this application, including the food storage box 1, buckle 2, cover 3, handle 4, viewing window 5, buckle groove 6, sealing insulation board 7, handle 8, cooling fan 9, battery box 10, limiting sleeve 11, positioning groove 12, rubber ring 13, sealing plate 14, fixing frame 15, insulation layer 16, mixed flow impeller 17, rotating rod 18, drive impeller 19, semiconductor cooling chip 20, heat conduction plate 21, cooling fin plate 22, heat dissipation fin 23, heat dissipation cavity 24, and positioning rib plate 25, are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1

[0026] Please see Figure 1-Figure 4As shown, this utility model provides a technical solution: a molecular biological sample preservation device, including a preservation box 1, a cover plate 3 is movably connected to the rear end of the top of the preservation box 1 via a hinge, handles 8 are fixedly installed on the upper ends of both sides of the preservation box 1, buckles 2 are fixedly installed between the cover plate 3 and the left and right ends of the front of the preservation box 1, a battery box 10 is fixedly installed in the middle of the rear side of the preservation box 1, positioning grooves 12 are provided on both the left and right ends of the cover plate 3, a sealing and heat-insulating plate 7 is provided inside the positioning groove 12, a buckle groove 6 is provided on one side of the sealing and heat-insulating plate 7, and multiple equally spaced sealing plates 14 are movably connected to the rear end of the top of the cover plate 3 via a hinge, a handle 4 is fixedly connected to the front end of the top of the sealing plate 14, and the sealing plate... The inner surface of the 14 is provided with a viewing window 5, the inner surface of the preservation box 1 is provided with a heat insulation layer 16, a heat dissipation cavity 24 is provided at the lower left end of the preservation box 1, a heat conduction plate 21 is embedded in the top of the heat dissipation cavity 24, a cooling fin plate 22 is embedded in the bottom of the preservation box 1, a plurality of equally spaced semiconductor cooling chips 20 are provided between the cooling fin plate 22 and the heat conduction plate 21, a heat dissipation fin 23 is fixedly connected to the bottom of the heat conduction plate 21, the hot surface of the semiconductor cooling chip 20 is in contact with the heat conduction plate 21, and the cold surface of the semiconductor cooling chip 20 is in contact with the cooling fin plate 22, a fixing frame 15 is fixedly connected to the upper end of the preservation box 1, and a plurality of limiting sleeves 11 are fixedly connected to the inner side of the fixing frame 15.

[0027] This technical solution: By using the limiting sleeve 11 and the fixing frame 15, multiple molecular biological samples requiring low-temperature preservation can be placed inside the limiting sleeve 11, effectively limiting the position of the samples. The latch 2 ensures a tight seal between the cover 3 and the preservation box 1 after the cover 3 is closed. The insulation layer 16 and the sealing insulation plate 7 improve the insulation performance of the device. The semiconductor cooling chip 20 allows for rapid cooling of the interior of the preservation box 1 via the cooling fins 22, while the heat generated by the hot surface of the semiconductor cooling chip 20 is transferred outwards via the heat-conducting plate 21 and the heat dissipation fins 23. The device effectively dissipates heat. When a molecular biological sample needs to be removed based on usage, the sealing and insulation plate 7 moves outward within the positioning groove 12 via the latch 6. Simultaneously, the moving sealing and insulation plate 7 still seals the positioning groove 12. At this time, the staff can observe the placement of the molecular biological sample through the viewing window 5. Once it is determined that the corresponding molecular biological sample needs to be removed, the sealing plate 14 is opened via the corresponding handle 4, allowing the molecular biological sample to be placed or removed. After completion, the sealing and insulation plate 7 is reset, thereby minimizing the adverse effects of the external environment on the device's interior, reducing the loss of cold air and energy consumption, and facilitating user convenience.

[0028] It should be noted that the lowest cooling temperature that the general-purpose semiconductor cooling chip 20 can achieve on the market is -120℃ to -130℃. The semiconductor cooling chip 20 is often used in applications that require rapid cooling or heating, such as miniature refrigerators and medical devices. Its advantages include small size, light weight, no moving mechanical parts, and long life.

[0029] Example 2

[0030] Based on Embodiment 1, this utility model is as follows: Figure 1-Figure 4 As shown, a rubber ring 13 is provided on the inner side of the limiting sleeve 11, and a positioning rib 25 is fixedly connected to the bottom of the limiting sleeve 11.

[0031] This technical solution: By setting the rubber ring 13 and the positioning rib 25, the molecular biological sample placed in the limiting sleeve 11 can be supported and cooled, and the positioning of the molecular biological sample can be assisted, and the stability of the molecular biological sample placement can be ensured.

[0032] Example 3

[0033] Based on Embodiment 1, this utility model is as follows: Figure 1-Figure 4 As shown, a rotating rod 18 is movably connected to the right end of the bottom of the inner cavity of the food preservation box 1 via a bearing. A mixing impeller 17 and a drive impeller 19 are fixedly connected to the top and bottom of the rotating rod 18. A cooling fan 9 corresponding to the heat dissipation cavity 24 is fixedly installed at the lower right end of the food preservation box 1.

[0034] This technical solution: By setting up the cooling fan 9, external air can be drawn into the cooling cavity 24 to blow on the cooling fins 23, thereby accelerating the heat dissipation efficiency of the cooling fins 23. The air flow drawn by the cooling fan 9 can drive the rotating rod 18 and the mixing impeller 17 to rotate via the drive impeller 19. When the mixing impeller 17 rotates, it can draw air flow inside the preservation box 1, which is conducive to maintaining a balanced low-temperature environment inside the preservation box 1.

[0035] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A molecular biological sample preservation device, comprising a preservation box (1), characterized in that: The rear end of the top of the food storage box (1) is connected to a cover plate (3) via a hinge. Positioning grooves (12) are provided at both ends of the cover plate (3). A sealing insulation plate (7) is provided inside the positioning groove (12). A latching groove (6) is provided on one side of the sealing insulation plate (7). Multiple equally spaced sealing plates (14) are connected to the rear end of the top of the cover plate (3) via a hinge. A handle (4) is fixedly connected to the front end of the top of each sealing plate (14). A viewing window (5) is provided on the inner surface of each sealing plate (14). The food storage box (1)... The inner surface of the food storage box (1) is provided with a heat insulation layer (16). A heat dissipation cavity (24) is opened at the lower left end of the food storage box (1). A heat conduction plate (21) is embedded in the top of the heat dissipation cavity (24). A cooling fin plate (22) is embedded in the bottom of the food storage box (1). A plurality of equally spaced semiconductor cooling chips (20) are arranged between the cooling fin plate (22) and the heat conduction plate (21). A fixing frame (15) is fixedly connected to the upper end of the food storage box (1). A plurality of limiting sleeves (11) are fixedly connected to the inner side of the fixing frame (15).

2. The molecular biological sample preservation device according to claim 1, characterized in that: The upper ends of the left and right sides of the food storage box (1) are fixedly installed with handles (8), and the cover (3) and the left and right ends of the front of the food storage box (1) are fixedly installed with buckles (2).

3. The molecular biological sample preservation device according to claim 1, characterized in that: A battery box (10) is fixedly installed at the middle of the rear side of the food storage box (1).

4. The molecular biological sample preservation device according to claim 1, characterized in that: The bottom of the heat-conducting plate (21) is fixedly connected to a heat dissipation fin (23), the hot side of the semiconductor cooling chip (20) is in contact with the heat-conducting plate (21), and the cold side of the semiconductor cooling chip (20) is in contact with the cooling fin (22).

5. The molecular biological sample preservation device according to claim 1, characterized in that: A rubber ring (13) is provided on the inner side of the limiting sleeve (11), and a positioning rib (25) is fixedly connected to the bottom of the limiting sleeve (11).

6. The molecular biological sample preservation device according to claim 1, characterized in that: The right end of the bottom of the inner cavity of the preservation box (1) is movably connected to a rotating rod (18) via a bearing. The top and bottom of the rotating rod (18) are fixedly connected to a mixing impeller (17) and a driving impeller (19).

7. The molecular biological sample preservation device according to claim 1, characterized in that: A cooling fan (9) corresponding to the heat dissipation cavity (24) is fixedly installed at the lower right side of the food storage box (1).

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