Sample storage device

Abstract

The utility model discloses a sample preservation device which comprises a double-layer storage box and a grating, the double-layer storage box comprises an outer storage box and an inner storage box, the outer storage box is sleeved outside the inner storage box, the outer storage box comprises an outer box body and an outer box cover which are connected in a sealing mode, and the inner storage box comprises an inner box body and an inner box cover which are connected in a sealing mode. A gap is formed between the outer box body and the inner box body, a refrigerant accommodating cavity is formed in the gap between the outer box body and the inner box body, the grid is arranged in the inner box body, and grid holes of the grid are used for placing sampling pipes. The sample preservation device provided by the utility model provides a closed sample preservation space, can preserve samples at low temperature, avoids volatilization and deterioration of the samples, and ensures the accuracy of detection results.

Description

Technical Field

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

[0002] The detection of certain element content requires the collection of samples first, and then the samples are transported to the testing laboratory for testing. However, some elements are volatile, which increases the difficulty of preservation and transportation.

[0003] For example, in iodine deficiency disorder monitoring, urinary iodine levels are measured in children aged 8-10 years and pregnant women to evaluate the iodine nutritional status of the general population and special populations. Monitoring iodine deficiency disorders requires measuring the iodine content in drinking water and urine. Because iodine is a trace element (water iodine is mostly between 0-40 μg, and urinary iodine is below 200 μg) and iodine is volatile, it is easily affected by high temperatures during transportation, causing sample deterioration and leading to inaccurate results, thus affecting the quality of disease monitoring.

[0004] In areas with vast regions, inconvenient transportation, and scattered sampling locations, existing sampling devices cannot deliver samples to the laboratory in a timely manner after collection. Furthermore, the samples are susceptible to high temperatures during transportation, which can cause physical and chemical changes, leading to inaccurate results and affecting the quality of disease monitoring. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model innovatively provides a sample preservation device that provides a sealed sample preservation space, can preserve samples at low temperature, avoid sample volatilization and deterioration, and ensure the accuracy of test results.

[0006] To achieve the aforementioned technical objectives, this utility model discloses a sample preservation device, comprising a double-layer storage box and a grid.

[0007] The double-layer storage box includes an outer storage box and an inner storage box. The outer storage box is fitted over the inner storage box. The outer storage box includes a sealed outer casing and an outer cover. The inner storage box includes a sealed inner casing and an inner cover. A gap is provided between the outer casing and the inner casing, forming a refrigerant receiving cavity.

[0008] The grid is installed inside the inner box, and the grid openings are used to place sampling tubes.

[0009] Furthermore, a weight sensor is provided at the bottom of each grid hole of the grille, and a display screen is provided on the outer storage box, with the weight sensor electrically connected to the display screen.

[0010] Furthermore, a temperature sensor is provided in the gap between the outer casing and the inner casing, and the temperature sensor is electrically connected to the display screen.

[0011] Furthermore, the inner diameter of the grid openings has different specifications.

[0012] Furthermore, the inner cavity length of the outer casing is twice the inner cavity length of the inner casing, and the inner cavity width of the outer casing is twice the inner cavity width of the inner casing.

[0013] Furthermore, the refrigerant is ice water, and the outer casing is provided with a refrigerant inlet and a refrigerant outlet, both of which are opened and closed by valves.

[0014] Furthermore, the inner wall of the grid openings is provided with an elastic protective layer.

[0015] Furthermore, the outer cover is hinged to the outer casing, and / or the inner cover is detachably connected to the inner casing.

[0016] Furthermore, the outer storage box is also equipped with a lock, and the outer box body and the outer box cover are locked together by the lock.

[0017] Furthermore, the external storage box is equipped with a handle.

[0018] The beneficial effects of this utility model are as follows:

[0019] The sample preservation device of this invention provides a sealed sample preservation space, which can preserve samples at low temperatures, avoid sample volatilization and deterioration, and ensure the accuracy of test results. Attached Figure Description

[0020] Figure 1 This is a front view of the sample preservation device according to an embodiment of the present invention.

[0021] Figure 2 This is a top view of the sample preservation device according to an embodiment of the present invention.

[0022] Figure 3 This is a left view of the sample preservation device according to an embodiment of the present invention.

[0023] In the picture,

[0024] 1. External storage box; 11. Outer casing; 111. Refrigerant inlet; 112. Refrigerant outlet; 12. Outer casing cover; 13. Upper support bar; 14. Lower support bar; 15. Limiting block; 151. Limiting groove; 16. Limiting post; 2. Inner storage box; 21. Inner casing; 22. Inner casing cover; 3. Grille; 4. Weight sensor; 5. Display screen; 6. Temperature sensor; 7. Lock; 8. Handle. Detailed Implementation

[0025] The sample preservation device provided by this utility model will be explained and described in detail below with reference to the accompanying drawings.

[0026] This embodiment specifically discloses a sample preservation device, such as... Figure 1-3 As shown, it includes a double-layer storage box and a grid 3. The double-layer storage box includes an outer storage box 1 and an inner storage box 2. The outer storage box 1 is fitted outside the inner storage box 2. The outer storage box 1 includes an outer box body 11 and an outer box cover 12 that are sealed together. The top of the outer box body 11 is provided with an opening. In this embodiment, the outer box cover 12 is hinged to the outer box body 11. The outer box cover 12 is folded to open and close the opening of the outer box body 11. Preferably, the outer box cover 12 is hinged to one side of the outer box body 11 by a hinge.

[0027] Optionally, the outer storage box 1 is also equipped with a lock 7, which locks the outer box body 11 and the outer box cover 12. Preferably, the lock 7 is a latch lock, which is located on the outer wall of the outer box body 11 and the outer box cover 12 and on the side opposite to the hinge. After the outer box cover 12 is placed on the outer box body 11, the lock 7 locks the outer box cover 12 to the outer box body 11 to keep it sealed and prevent the outer box cover 12 from being accidentally opened during transportation, thus ensuring the airtightness of the outer storage box 1.

[0028] A sealing ring is provided at the edge where the outer casing 11 and the outer casing cover 12 are fastened together. That is, a sealing ring is provided at the edge where the outer casing 11 has an opening, and the outer casing cover 12 presses on the sealing ring. The sealing ring is preferably a rubber ring to ensure the airtightness of the outer storage box 1 when it is closed.

[0029] The inner storage box 2 includes a sealed inner box body 21 and an inner box cover 22. The top of the inner box body 21 has an opening. In this embodiment, the inner box cover 22 is detachably connected to the inner box body 21, and the inner box cover 22 can be completely detached from the inner box body 21. The inner storage box 2 has a detachable and closable structure. The upper edge of the inner box body 21 has a snap-fit ​​groove, and a sealing ring is provided in the snap-fit ​​groove. The sealing ring is preferably a rubber ring. The lower edge of the inner box cover 22 snaps into the snap-fit ​​groove and is pressed into the rubber ring to ensure the airtightness of the inner storage box 2.

[0030] A gap is provided between the outer casing 11 and the inner casing 21, forming a refrigerant containment cavity for holding the refrigerant, which is used to maintain the low-temperature environment inside the inner storage box 2. A grid 3 is installed inside the inner casing 21, and the grid holes of the grid 3 are used to place sampling tubes.

[0031] Due to the different chemical properties of the samples being preserved, both the outer storage box 1 and the inner storage box 2 are made of acid-resistant, alkali-resistant, corrosion-resistant, and rust-resistant materials to extend their service life and save costs. Meanwhile, the outer storage box 1 is made of thermal insulation material, while the inner storage box 2 is made of a material with high heat transfer efficiency. In this embodiment, both the outer box body 11 and the outer box cover 12 are integrally molded from organic polymer black polypropylene material.

[0032] Optionally, the inner cavity length of the outer casing 11 is twice the inner cavity length of the inner casing 21, the inner cavity width of the outer casing 11 is twice the inner cavity width of the inner casing 21, and the inner cavity height of the outer casing 11 is greater than the inner cavity height of the inner casing 21. This ensures sufficient contact between the refrigerant and the inner casing 21, maintains the low-temperature environment of the inner storage box 2, and guarantees the cooling effect. The inner casing 21 and the outer casing 11 can be cubes, cuboids, cylinders, or elliptical cylinders. If they are cylinders or elliptical cylinders, the length and width of the inner cavity refer to the inner diameter of the cross-section of the inner casing 21 and the outer casing 11, respectively. In this embodiment, the cross-section of the outer casing and the inner casing is rectangular. This application does not limit the specific dimensions of the outer casing 11 and the inner casing 21; they can be set according to requirements, such as designing based on the number of samples to be preserved, increasing the practicality and applicability of the sample preservation device.

[0033] like Figure 1-3As shown, to ensure the secure installation of the inner storage box 2 within the outer storage box 1 and to prevent the inner storage box 2 from shaking during transportation, one or more upper support strips 13 are provided on the inner side of the outer box cover 12. The upper support strips 13 can be arranged along the length or width of the outer box cover 12, or they can be inclined. When there are multiple upper support strips 13, they can be arranged in parallel or crosswise. One or more lower support strips 14 are provided on the inner bottom surface of the outer box 11. The lower support strips 14 can be arranged along the length or width of the outer box 11, or they can be inclined. When there are multiple lower support strips 14, they can be arranged in parallel or crosswise. The length of the lower support strip 14 is less than the length of the outer box 11 in the direction in which it is located, that is, the two ends of the lower support strip 14 do not contact the inner wall of the outer box 11, ensuring that when the refrigerant is liquid, it can flow into the gap between adjacent lower support strips 14, ensuring that the bottom surface of the inner box 21 has sufficient area to contact the refrigerant. When the inner casing 21 is installed inside the outer casing 11, the inner casing 21 rests on the lower support bar 14 to prevent the bottom surface of the inner casing 21 from directly contacting the inner bottom surface of the outer casing 11 to form a sealed space. The lower support bar 14 supports the inner casing 21 and also ensures that there is space between the bottom surfaces of the inner casing 21 and the outer casing 11 to accommodate the refrigerant. After the inner casing cover 22 is placed on the inner casing 21, the outer casing cover 12 is also placed on the outer casing 11. The upper support bar 13 presses down on the top of the inner casing cover 22. The upper support bar 13 and the lower support bar 14 fix the inner storage box 2 inside the outer storage box 1 from the vertical direction. After the lock 7 is locked, it can be ensured that the inner storage box 2 does not move inside the outer storage box 1.

[0034] Furthermore, such as Figure 1-3 As shown, limiting blocks 15 are provided on opposite inner sidewalls of the outer casing 11, and vertical limiting grooves 151 are provided on the limiting blocks 15. Limiting posts 16 that match the limiting grooves 151 are provided on the outer sidewall of the inner casing 21. The limiting posts 16 move downwards and insert into the limiting grooves 151, thus limiting the horizontal position of the inner casing 21. This securely fixes the inner casing 21 within the outer casing 11. Limiting blocks 11 can be provided on two opposite inner sidewalls of the outer casing 11, or they can be provided on all four inner sidewalls of the outer casing 11. For design simplification, limiting blocks can be provided on two opposite inner sidewalls of the outer casing.

[0035] The refrigerant can be either solid or liquid. When the refrigerant is solid, it can be added through the gap between the opening of the outer casing 11 and the opening of the inner casing 21. Preferably, the refrigerant is chilled water. The outer casing 11 is provided with a refrigerant inlet 111 and a refrigerant outlet 112. The height of the refrigerant inlet 111 is higher than the height of the refrigerant outlet 112. Both the refrigerant inlet 111 and the refrigerant outlet 112 are opened and closed by valves, allowing for timely replacement or replenishment of the refrigerant as needed, simplifying operation. Closing the refrigerant inlet and outlet by valves ensures the sealing effect of the outer storage box 1. An extension pipe can be connected to the refrigerant inlet 111 and refrigerant outlet 112 on the outer casing, with valves installed on the extension pipe.

[0036] Optionally, the outer storage box 1 is provided with a handle 8. Preferably, the handle 8 is fixed to the top outer wall of the outer box cover 12, which increases the portability of the sample preservation device of this application. The handle 8 is made of rust-proof material, and the part that comes into contact with the hand is covered with rubber for protection. The surface of the rubber can also be provided with friction texture to increase friction and facilitate the sampling personnel to move the sample preservation device.

[0037] Optionally, the inner diameter of the grid holes of the grid 3 has different specifications, preferably five different inner diameter specifications, which can accommodate sampling tubes of different specifications and ensure that the sampling tubes do not shake in the grid holes.

[0038] Optionally, a weight sensor 4 is provided at the bottom of each grid hole of the grid 3. The weight sensor 4 is fixed to the inner bottom wall of the inner housing 21, and the grid 3 surrounds the weight sensor 4 within each grid hole. When the weight detected by the weight sensor 4 changes, it indicates that a sampling tube has been placed in that grid hole. The outer storage box 1 is equipped with a display screen 5, and the weight sensor 4 is electrically connected to the display screen 5. After the weight sensor 4 detects the sampling tube, it can display the result on the display screen 5, thereby detecting and displaying the number of samples placed in real time. The display screen 5 can be embedded in the wall of the outer housing 11, and a battery cavity can be provided on the wall of the outer housing 11 to power the display screen 5 and the weight sensor 4. The display screen 5 is preferably a touch screen, which can be operated by the sampling personnel.

[0039] Optionally, a temperature sensor 6 is installed in the gap between the outer casing 11 and the inner casing 21. That is, the temperature sensor 6 is located within the refrigerant containment chamber. The temperature sensor 6 is electrically connected to the display screen 5 and to a battery, which powers the temperature sensor 6. The temperature sensor 6 can be fixed to the inner wall of the outer casing 11 or the outer wall of the inner casing 21. It is used to monitor the temperature at its location in real time, i.e., the temperature of the refrigerant, and display it on the display screen 5. Sampling personnel can determine whether to replenish or replace the refrigerant based on the current temperature of the refrigerant, ensuring the cooling effect and achieving constant temperature preservation of the sample, thereby guaranteeing the sample quality. The temperature sensor 6 can be a non-contact temperature sensor.

[0040] The inner wall of the grid openings of the grid 3 is provided with an elastic protective layer. This layer protects the sampling tube from wear and tear. Additionally, on bumpy roads, the layer acts as a shock absorber, reducing the shaking of the sampling tube and the sample inside during transport. Preferably, the protective layer can be made of sponge or rubber. The entire grid 3 can be made of an elastic material or a rigid material, with the elastic protective layer fixed to the inner wall of the grid openings.

[0041] The method of using the sample preservation device of this application is as follows:

[0042] After collecting the sample, the sampling personnel first open the outer box cover 12, then open the inner box cover 22. They place the sampling tube containing the sample into the corresponding size grid hole inside the inner box 21, close the inner box cover 22, close the outer box cover 12 and lock the lock 7, close the valve at the refrigerant outlet 112, open the valve at the refrigerant inlet 111, and add refrigerant. After adding the refrigerant, close the valve at the refrigerant inlet 111 to complete the sample preservation process. During sample transportation, the temperature of the refrigerant inside the outer box 11 and the quantity of sample in the grid 4 can be monitored in real time by observing the display screen 5 to determine whether refrigerant replenishment or replacement is necessary, ensuring a constant temperature environment inside the outer box 11 and maintaining the sample at a constant temperature as much as possible.

[0043] The sample preservation device proposed in this application solves the problems of existing devices that easily cause sample deterioration, resulting in inaccurate element detection results, poor disease monitoring quality, and cumbersome operation. It has the advantages of rapid observation, simple operation, standardized specifications, sealed space, and long-term constant temperature preservation, and has broad application prospects.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and simple improvements made on the substantive content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample preservation device, characterized in that, Includes a double-layer storage box and a grid (3). The double-layer storage box includes an outer storage box (1) and an inner storage box (2). The outer storage box (1) is fitted over the inner storage box (2). The outer storage box (1) includes a sealed outer casing (11) and an outer casing cover (12). The inner storage box (2) includes a sealed inner casing (21) and an inner casing cover (22). A gap is provided between the outer casing (11) and the inner casing (21). The gap between the outer casing (11) and the inner casing (21) forms a refrigerant receiving cavity. The grid (3) is disposed inside the inner box (21), and the grid holes of the grid (3) are used to place the sampling tube.

2. The sample preservation device according to claim 1, characterized in that, The bottom of each grid hole of the grille (3) is provided with a weight sensor (4), and the outer storage box (1) is provided with a display screen (5). The weight sensor (4) is electrically connected to the display screen (5).

3. The sample preservation device according to claim 2, characterized in that, A temperature sensor (6) is provided in the gap between the outer casing (11) and the inner casing (21), and the temperature sensor (6) is electrically connected to the display screen (5).

4. The sample preservation device according to claim 1, characterized in that, The inner diameter of the grid holes of the grid (3) has different specifications.

5. The sample preservation device according to claim 1, characterized in that, The inner cavity length of the outer box (11) is twice the inner cavity length of the inner box (21), and the inner cavity width of the outer box (11) is twice the inner cavity width of the inner box (21).

6. The sample preservation device according to claim 1, characterized in that, The refrigerant is ice water. The outer casing (11) is provided with a refrigerant inlet (111) and a refrigerant outlet (112). Both the refrigerant inlet (111) and the refrigerant outlet (112) are opened and closed by valves.

7. The sample preservation device according to claim 1, characterized in that, The inner wall of the grid holes of the grid (3) is provided with an elastic protective layer.

8. The sample preservation device according to claim 1, characterized in that, The outer cover (12) is hinged to the outer box body (11), and / or the inner cover (22) is detachably connected to the inner box body (21).

9. The sample preservation device according to claim 1 or 8, characterized in that, The outer storage box (1) is also provided with a lock (7), and the outer box body (11) and the outer box cover (12) are locked by the lock (7).

10. The sample preservation device according to claim 1, characterized in that, The external storage box (1) is equipped with a handle (8).

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