Ultralow-temperature sample storage box

Abstract

The utility model provides a sample ultra-low temperature preservation box which comprises a box body, the box body is in a cylinder shape with an opening in the top end, an annular guide groove and a lifting guide groove are formed in the circumferential inner wall of the box body, and the lifting guide groove is communicated with the annular guide groove and penetrates through the box body upwards; the storage box is arranged on the inner wall of the box body in a sliding mode and can slide along the annular guide groove or the lifting guide groove; the box cover can be opened and closed to seal and cover the opening of the box body, and a storing and taking hole is formed in the box cover; the first sealing cover can seal and cover the access hole in an openable and closable manner; and the storage box is operated to slide upwards along the lifting guide groove, so that the storage box can be moved out from the access hole. According to the ultra-low-temperature sample storage box, contact between samples in the box body and external air is reduced when the samples are taken, placed and arranged, and the influence of the external air on the samples in the box body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature storage containers, in particular to a sample ultra-low temperature preservation box. Background Art

[0002] Cryopreservation technology is a technology that uses extremely low-temperature liquefied gases such as liquid nitrogen or liquid carbon dioxide as cryopreservatives and uses the principle of heat absorption and gasification of cryopreservatives to freeze and preserve biological samples. It has a wide range of applications in many fields, for example, in the field of biotechnology, it preserves biological materials such as tissue samples, enzymes, antibodies, etc. to ensure the accuracy and reliability of scientific research or clinical experiments; in the pharmaceutical industry, it preserves vaccines, special drugs, etc. to maintain their effectiveness and stability, and ultra-low temperatures provide an ideal storage environment; in the food industry, it preserves high-grade frozen foods to maintain freshness and taste, etc.

[0003] Ultra-low temperature preservation agents need to be used with ultra-low temperature preservation boxes. Ultra-low temperature preservation boxes include boxes, doors, and refrigeration systems. Samples are placed in ultra-low temperature preservation boxes, and the ultra-low temperature preservation agents work in the refrigeration system to maintain the low temperature inside the box. However, when taking and placing samples, the door of the box must be kept open. The cold air in the box will quickly exchange with the hot air outside, causing the temperature of the environment in which the samples are located in the box to rise rapidly, affecting the sample storage environment. At the same time, water vapor in the outside air may also frost on the surface of the samples in the box. Utility Model Content

[0004] In view of this, the utility model aims to provide a sample ultra-low temperature storage box to reduce the influence of external air on the samples in the box when the samples are taken out and sorted.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A sample ultra-low temperature storage box, comprising: a box body, which is cylindrical with an open top, and the circumferential inner wall is provided with an annular guide groove and a lifting guide groove, the lifting guide groove is connected to the annular guide groove and passes through the box body upward; a storage box, which is slidably arranged on the inner wall of the box body and can slide along the annular guide groove or the lifting guide groove; a box cover, which can be opened and closed to cover the open part of the box body, and the box cover is provided with an access hole; a first sealing cover, which can be opened and closed to cover the access hole; the storage box can be moved out of the access hole by operating the storage box to slide upward along the lifting guide groove.

[0007] Furthermore, the groove wall of the annular guide groove is provided with a plurality of storage grooves extending downward.

[0008] Furthermore, the sample ultra-low temperature preservation box also includes a transfer rod coaxially movably installed on the box cover, and the bottom end of the transfer rod is radially bent to form an extraction portion, and the extraction portion can lift and move the storage box.

[0009] Furthermore, a positioning protrusion is provided on the upper portion of the extraction portion, and a limiting groove whose shape matches that of the positioning protrusion is provided on the bottom end of the storage box.

[0010] Furthermore, the transfer rod is provided with a first mark pointing to the extraction portion, and the top of the box cover is provided with a plurality of second marks, each of the second marks individually corresponding to a direction pointing to a storage slot.

[0011] Furthermore, at least two annular guide grooves are provided, the adjacent storage grooves between each annular guide groove are overlapped in the vertical direction, and the transfer rod is provided with a plurality of third marks along the axial direction; in the direction from bottom to top, the spacing between each adjacent third mark is the same as the spacing between each adjacent annular guide groove.

[0012] Furthermore, labels corresponding to the positions of the storage slots are provided on the outer side wall of the box.

[0013] Furthermore, a sealing tube with an open top is provided at the top of the box cover, the transfer rod is inserted upward into the sealing tube, and the sealing tube is covered with a second sealing cover that can be opened and closed.

[0014] Furthermore, the transfer rod is axially telescopically arranged.

[0015] Furthermore, a handle is provided at the top of the transfer rod.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The sample ultra-low temperature storage box described in the utility model is provided with an annular guide groove and a lifting guide groove, so that the storage box can be moved along the inner wall in the box body, and all the storage boxes can enter and exit the box body through the access hole. The access hole is much smaller than the box cover, which reduces the contact between the samples in the box and the outside air when taking and placing the samples, and reduces the influence of the outside air on the samples in the box. The storage groove can be used to park the storage box, so that the storage box can be stored at a fixed point and the position is determined. A transfer rod is provided on the box cover, and the transfer rod is provided with an extraction part, which can enable the operator to directly operate the transfer rod part outside the box body to move the internal storage box, and move the storage box out or put it into the box body. The extraction part is provided with a positioning protrusion to cooperate with the limiting groove, which can make the connection between the extraction part and the storage box more stable, and the storage box is not easy to shake and fall off when it is lifted and moved.

[0018] Secondly, the second mark on the top of the box cover can indicate the radial position of each storage slot in the box. By turning the transfer rod to align the first mark with the second mark, the transfer rod can be accurately operated to move the storage box without seeing the inside of the box. The capacity of the box can be increased by setting multiple ring guide grooves and multiple storage slots. By moving the lifting transfer rod and comparing and adjusting different third marks with reference objects, the height of the extraction part in the box can be known to accurately lift or place the storage box. Labels are set on the side walls of the box, and information about specific samples stored in specific locations in the box can be obtained on the labels, which is convenient for storage and retrieval.

[0019] In addition, the sealing tube and the second sealing cover can block the heat transfer from the transfer rod and block the cold bridge. The transfer rod can be retracted to make it more convenient for the operator to lift the transfer rod. The handle can be provided to facilitate the operator to grasp and operate the transfer rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a sample ultra-low temperature storage box according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a sample ultra-low temperature storage box according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the box body of the utility model embodiment;

[0024] Figure 4 This is a schematic diagram of the structure of the transport rod of the utility model embodiment;

[0025] Figure 5 It is a schematic structural diagram of a storage box according to an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Box body; 101. Annular guide groove; 1011. Storage groove; 102. Lifting guide groove; 103. Label;

[0028] 2. Storage box; 201. Limiting groove; 202. Sliding block;

[0029] 3. Box cover; 301. Access hole; 302. Second mark; 303. Internal number; 304. External number;

[0030] 4. The first sealing cover;

[0031] 5. Transfer rod; 501. Extraction part; 502. Positioning protrusion; 503. First mark; 504. Third mark; 505. Handle;

[0032] 6. Sealing tube;

[0033] 7. Second sealing cover;

[0034] 8. Refrigeration system. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] The present embodiment relates to a sample ultra-low temperature storage box, which optimizes the structure of the ultra-low temperature storage box to reduce the influence of external air on the samples when the samples are taken out, placed and sorted in the box.

[0040] In terms of overall structure, the sample ultra-low temperature storage box includes a box body 1, a storage box 2, a box cover 3 and a first sealing cover 4. The box body 1 is a cylindrical shape with an open top, and an annular guide groove 101 and a lifting guide groove 102 are provided on the circumferential inner wall. The lifting guide groove 102 is connected to the annular guide groove 101 and passes through the box body 1 upward. The storage box 2 is slidably arranged on the inner wall of the box body 1 and can slide along the annular guide groove 101 or the lifting guide groove 102. The box cover 3 can be opened and closed at the open part of the box body 1, and an access hole 301 is provided on the box cover 3. The first sealing cover 4 can be opened and closed at the access hole 301. The storage box 2 can be moved out of the access hole 301 by sliding upward along the lifting guide groove 102.

[0041] The sample ultra-low temperature storage box of this embodiment is provided with an annular guide groove 101 and a lifting guide groove 102, so that the storage box 2 can move along the inner wall in the box body 1, and all the storage boxes 2 can enter and exit the box body 1 through the access hole 301. The box cover 3 can be kept closed for a long time, and the storage box 2 can be put in and taken out only through the access hole 301. The access hole 301 is much smaller than the top opening of the box body 1, which reduces the exchange of cold air in the box body 1 and hot air outside when taking and placing samples, reduces the influence of external air on the samples in the box body 1, and also makes it difficult for external water vapor to enter the box body 1 to cause frost.

[0042] Based on the above overall introduction, the sample ultra-low temperature storage box described in this embodiment is as follows Figures 1 to 5 As shown, the box body 1 is a cylindrical structure with an open top, and an annular guide groove 101 is arranged along the inner wall. The annular guide groove 101 is arranged horizontally, so that the storage box 2 can move horizontally along the annular guide groove 101. The lifting guide groove 102 is vertically arranged on the inner wall of the box body 1, and is connected with the annular guide groove 101, so that the storage box 2 can switch positions between the lifting guide groove 102 and the annular guide groove 101. The access hole 301 on the box cover 3 is directly opposite to the lifting guide groove 102, and its shape is adapted to the shape of the storage box 2 and is slightly larger than the storage box 2. The storage box 2 can be loaded into or removed from the lifting guide groove 102 through the access hole 301. A refrigeration system 8 is also arranged in the box body 1, and the refrigeration system 8 is used to cool the box, and adopts the liquid nitrogen vaporization refrigeration method.

[0043] In order to allow the samples in the box 1 to be stored at intervals to improve the refrigeration effect, the groove wall of the annular guide groove 101 is provided with a plurality of downwardly extending storage grooves 1011. The storage grooves 1011 are used to park the storage box 2. When the storage box 2 is in the storage grooves 1011, in this embodiment, the storage box 2 is preferably in a fan-shaped columnar shape with an open top and a slider 202 integrally formed on the side wall. The slider 202 is a "T"-shaped slider 202, and the cross-sections of the storage groove 1011 and the lifting guide groove 102 are also "T"-shaped. The cross-section of the annular guide groove 101 is rectangular, so that the slider 202 will not fall off during the lifting process. The cross-sectional dimensions of the storage groove 1011 and the lifting guide groove 102 are slightly larger than the slider 202, so that the slider 202 can be easily loaded.

[0044] The access hole 301 is relatively small, and it is inconvenient for the operator to access the storage box 2 by hand. In a preferred solution of this embodiment, the sample ultra-low temperature storage box also includes a transfer rod 5 coaxially movably arranged on the box cover 3. The bottom end of the transfer rod 5 is radially bent to provide an extraction portion 501, and the extraction portion 501 can lift and move the storage box 2. By operating the transfer rod 5, the storage box 2 can be lifted or put down from the storage slot 1011, and the storage box 2 can be supported to slide in the annular guide groove 101 or the lifting guide groove 102. The first sealing cover 4 can be opened when the storage box 2 is about to pass through the access hole 301. After the storage box 2 passes through the access hole 301, the first sealing cover 4 is immediately covered, which can further reduce the contact between the external air and the air in the box body 1.

[0045] As a preferred form of connection between the transport rod 5 and the storage box 2, a positioning protrusion 502 is provided on the upper part of the extraction part 501, and a limiting groove 201 matching the shape of the positioning protrusion 502 is provided at the bottom end of the storage box 2. When the extraction part 501 supports the storage box 2, the positioning protrusion 502 moves into the limiting groove 201. At this time, the positioning protrusion 502 can limit the storage box 2, so that when the transport rod 5 moves the storage box 2, the storage box 2 is not easy to shake or fall off. Further preferably, the positioning protrusion 502 is set to a truncated cone shape, so that the positioning protrusion 502 has a certain guiding effect when inserted into the limiting groove 201.

[0046] In a preferred embodiment, the transport rod 5 is provided with a first mark 503 pointing to the extraction part 501, and the top of the box cover 3 is provided with a plurality of second marks 302, each second mark 302 corresponding to a direction of a storage slot 1011. The transport rod 5 is rotated to align the first mark 503 with a second mark 302, and the extraction part 501 is located at the radial position of the box body 1 of the second mark 302, so that the operator can more intuitively place the storage box 2 in the designated storage slot 1011 or remove the storage box 2 in the designated storage slot 1011 during operation. Exemplarily, the first mark 503 and the second mark 302 are both engraved lines, and the display is intuitive.

[0047] In order to increase the storage capacity of the box 1, at least two annular guide grooves 101 are provided, and the adjacent storage grooves 1011 between the annular guide grooves 101 overlap in the vertical direction. The transfer rod 5 is provided with a plurality of third marks 504 along the axial direction. In the direction from bottom to top, the spacing between adjacent third marks 504 corresponds to the spacing between adjacent annular guide grooves 101. The third marks 504 are provided so that the operator can know the height position of the extraction part 501 in the box 1 when operating the transfer rod 5.

[0048] Specifically, taking the setting of four annular guide grooves 101 as an example, the third mark 504 is set as a scale line along the circumferential side wall of the lifting rod. When the storage box 2 corresponding to the lowest annular guide groove 101 needs to be extracted, the first mark 503 is aligned with the corresponding second mark 302, and the transfer rod 5 is lifted to lift the storage box 2 in the lowest position until it can slide along the annular guide groove 101. The third mark 504 on the uppermost side of the transfer rod 5 just exceeds the top of the box cover 3. The storage box 2 can be moved into the lifting guide groove 102 by rotating the transfer rod 5, and the storage box 2 can be moved out by pulling the transfer rod 5 again. When it is necessary to store the storage box 2 in the bottom storage slot 1011, first put the storage box 2 into the access hole 301, and the storage box 2 is supported by the transfer rod 5. When the transfer rod 5 moves down to the third mark 504 close to the top of the box cover 3, the transfer rod 5 is rotated to align the first mark 503 with the corresponding second mark 302, and then the transfer rod 5 is lowered to put the storage box 2 into the corresponding storage slot 1011. Similarly, for the placement and access of the storage boxes 2 at other layers, it is only necessary to compare the corresponding third mark 504 with the top position of the box cover 3, so that the extraction part 501 can be operated more accurately to enter the corresponding annular guide groove 101, and then the storage box 2 can be placed.

[0049] In order to know the type of samples stored in the storage box 2 in each storage slot 1011, the outer wall of the box body 1 is provided with a label 103 corresponding to the position of each storage slot 1011. By recording the sample information on the label 103, the operator can quickly know the specific position of the required storage slot 1011.

[0050] In a preferred embodiment, a sealing tube 6 with an open top is provided at the top of the box cover 3, and the transfer rod 5 is inserted upward into the sealing tube 6, and a second sealing cover 7 that can be opened and closed is sealed on the sealing tube 6. When the transfer rod 5 is not in use, the end of the transfer rod 5 is stored in the sealing tube 6, and then the second sealing cover 7 is used to seal it, so that the cold bridge generated at the transfer rod 5 can be blocked, and the external heat can be reduced from entering the box body 1 through the transfer rod 5.

[0051] Specifically, the box cover 3 is also provided with an inner number 303 and an outer number 304. The inner number 303 is located inside the sealing tube 6 and corresponds to the second mark 302 one by one; the outer number 304 is located at the edge of the box cover 3, and can mark each column of labels 103. The inner number 303 that is directly opposite to the inner number 303 in the radial direction is the same pair, which can make the matching of each column of labels 103 and the second mark 302 more intuitive.

[0052] In order to facilitate the operator to operate the transport rod 5, the transport rod 5 is axially telescopic, so that the top of the transport rod 5 can extend a longer distance from the box cover 3, reducing the operator's bending work and reducing labor intensity. Specifically, the transport rod 5 is configured as two relatively telescopic sections, and a guide structure is provided between the two sections to enable the two sections to rotate synchronously. The top of the transport rod 5 of this embodiment is provided with a handle 505, which can facilitate the operator to lift and place the transport rod 5.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample ultra-low temperature storage box, characterized in that: include: A box body (1), the box body (1) is in the shape of a tube with an open top, and an annular guide groove (101) and a lifting guide groove (102) are provided on the circumferential inner wall, and the lifting guide groove (102) is connected to the annular guide groove (101) and passes through the box body (1) upwards; A storage box (2), the storage box (2) being slidably arranged on the inner wall of the box body (1) and being capable of sliding along the annular guide groove (101) or the lifting guide groove (102); A box cover (3), the box cover (3) can be opened and closed to cover the open portion of the box body (1), and the box cover (3) is provided with an access hole (301); A first sealing cover (4), the first sealing cover (4) can be opened and closed to seal the access hole (301); The storage box (2) can be moved out of the access hole (301) by operating the storage box (2) to slide upward along the lifting guide groove (102).

2. The sample ultra-low temperature storage box according to claim 1, characterized in that: The groove wall of the annular guide groove (101) is provided with a plurality of storage grooves (1011) extending downwards.

3. The sample ultra-low temperature storage box according to claim 2, characterized in that: The sample ultra-low temperature storage box also includes a transfer rod (5) coaxially movably arranged on the box cover (3), and the bottom end of the transfer rod (5) is radially bent to form an extraction portion (501), and the extraction portion (501) can lift and move the storage box (2).

4. The sample ultra-low temperature storage box according to claim 3, characterized in that: The upper part of the extraction portion (501) is provided with a positioning protrusion (502), and the bottom end of the storage box (2) is provided with a limiting groove (201) whose shape matches that of the positioning protrusion (502).

5. The sample ultra-low temperature storage box according to claim 3, characterized in that: The transfer rod (5) is provided with a first mark (503) pointing to the extraction portion (501), and the top of the box cover (3) is provided with a plurality of second marks (302), each of the second marks (302) correspondingly pointing to a direction of a storage slot (1011).

6. The sample ultra-low temperature storage box according to claim 5, characterized in that: At least two annular guide grooves (101) are provided, and the adjacent storage grooves (1011) between the annular guide grooves (101) overlap in projection in the vertical direction. The transfer rod (5) is provided with a plurality of third marks (504) along the axial direction; in the direction from bottom to top, the spacing between adjacent third marks (504) is the same as the spacing between adjacent annular guide grooves (101).

7. The sample ultra-low temperature storage box according to claim 6, characterized in that: Labels (103) corresponding to the positions of the storage slots (1011) are provided on the outer side wall of the box body (1).

8. The sample ultra-low temperature storage box according to claim 3, characterized in that: The top of the box cover (3) is provided with a sealing tube (6) with an open top, the transfer rod (5) is inserted upward into the sealing tube (6), and the sealing tube (6) is covered with a second sealing cover (7) that can be opened and closed.

9. The sample ultra-low temperature storage box according to claim 8, characterized in that: The transfer rod (5) is telescopically arranged along the axial direction.

10. The sample ultra-low temperature storage box according to claim 9, characterized in that: A handle (505) is provided at the top end of the transfer rod (5).

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