Sample storage box for low-temperature thermostatic bath

Abstract

The utility model relates to a sample storage box for a low-temperature thermostatic bath. The sample storage box comprises a box body, the box cover is hermetically mounted at the opening of the box body; the partition plate assembly is detachably arranged in the box body and is in contact with the inner wall of the box body to form a plurality of partition cavities for separating the sample liquid in the box body; the supporting legs are fixedly installed on the lower portion of the box body and used for supporting the box body; wherein the box body, the box cover and the partition plate assembly are all made of metal, and the side wall of the box body, the bottom wall of the box body and the box cover are equal in thickness; when the sample storage box is placed in the low-temperature thermostatic bath, the lower ends of the supporting legs are in contact with the bath bottom of the low-temperature thermostatic bath, the box body is located in the middle of the low-temperature thermostatic bath, fluid in the low-temperature thermostatic bath exchanges heat with the box body and the box cover, and sample liquid in the partition cavities is frozen into sample blocks. Therefore, the sample liquid is efficiently, stably and uniformly frozen in the cavity of the sample storage box in a short time, and the freezing effect of the sample liquid and the finished product yield of the freeze-dried facial mask are improved.

Description

Technical Field

[0001] This utility model relates to the field of freeze-drying technology, and in particular to a sample storage box for a low-temperature constant temperature bath. Background Technology

[0002] In the preparation of freeze-dried collagen masks, the collagen solution needs to be freeze-dried, and it must be completely frozen within a short period of time. If the collagen solution is placed directly into the freeze dryer, the initial freezing time is too long, resulting in a freeze-dried product with large pores and a loose, spongy texture, which is unsuitable for preparing freeze-dried collagen masks. Therefore, a low-temperature constant-temperature bath can be used to achieve rapid freezing of the collagen solution, reducing the formation of large pores during drying and meeting the product requirements of freeze-dried masks.

[0003] Currently, if this freezing operation is carried out in a cryogenic bath, the collagen solution is usually placed in an open or sealed container within the bath. However, due to the large volume and continuous circulation of the cryosol in the bath, the container containing the collagen solution becomes unstable, easily causing the surface of the frozen collagen solution to tilt, reducing product yield. In addition, the bottom of the container is in direct contact with the cryogenic bath, resulting in uneven freezing rates around the edges and top / bottom of the collagen solution—faster freezing around the edges and slower freezing at the top / bottom. Furthermore, the upper layer of frozen collagen solution tends to bulge upwards, and the density of the freeze-dried product is inconsistent between the edges and the center on the same plane. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a sample storage box for a low-temperature thermostatic bath, which enables the sample liquid to be frozen efficiently, stably and uniformly in a short time within the cavity of the sample storage box, thereby improving the freezing effect of the sample liquid and the yield of the freeze-dried mask.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A sample storage box for a low-temperature thermostat bath, comprising:

[0007] Box body;

[0008] A lid is sealed and installed at the opening of the box body;

[0009] A partition assembly is detachably disposed inside the box body, contacts the inner wall of the box body and forms multiple cavities to separate the sample liquid inside the box body;

[0010] Support legs, which are fixedly installed on the lower part of the box body to support the box body;

[0011] The box body, the lid, and the partition assembly are all made of metal, and the side walls, bottom walls, and lid of the box body are of equal thickness.

[0012] When the sample storage box is placed in the low-temperature constant temperature bath, the lower end of the support leg contacts the bottom of the low-temperature constant temperature bath, the box body is located in the middle of the low-temperature constant temperature bath, and the fluid in the low-temperature constant temperature bath exchanges heat with the box body and the box cover to freeze the sample liquid in the cavity into sample blocks.

[0013] As a further improvement to the above technical solution:

[0014] The partition assembly is structured to include multiple first partition members and multiple second partition members;

[0015] Each first partition has multiple first slots spaced apart, and each second partition has multiple second slots spaced apart, corresponding to the first slots. After the first slots and second slots are inserted into each other and placed inside the box, multiple cavities are formed.

[0016] Both ends of each first partition are in contact with the side wall of the box body, and the bottom of each first partition is in contact with the bottom of the box body. Both ends of each second partition are in contact with the side wall of the box body, and the bottom of each second partition is in contact with the bottom of the box body. The upper opening of each compartment is flush with the box body.

[0017] The number of support legs is multiple, and the lower part of the box body is provided with multiple connecting slots. One end of the support leg is detachably connected to the connecting slot, and the other end of the support leg is used to contact the bottom of the low temperature constant temperature bath. The support leg is made of non-metallic material.

[0018] The box body has a structure including a box body, a flange at the opening of the box body, a sealing gasket between the flange and the box cover, and a fastening assembly for connecting the flange and the box cover.

[0019] The fastening assembly includes multiple hinge bolts, the flange has multiple first notches, and the cover has multiple second notches. The first and second notches correspond one-to-one. The fisheye head of each hinge bolt is detachably connected to the box body. The tail of the hinge bolt is provided with a first nut. After the hinge bolt is placed in the first and second notches and the first nut is locked, the sealing gasket undergoes elastic deformation to seal the opening of the box body.

[0020] The box body is a cuboid structure, and the multiple hinge bolts are divided into four groups, corresponding to the four side walls of the box body respectively, with each group having more than or equal to two hinge bolts.

[0021] It also includes a connecting rod, the two ends of which are detachably connected to the housing, and a set of hinge bolts are threaded through a connecting rod.

[0022] It also includes multiple support plates and multiple studs corresponding to the support plates. The support plates have an L-shaped cross-section. One support plate is used to support one end of the connecting rod. The studs are fixedly connected to the lower surface of the flange. The support plate is provided with a through hole, and the studs pass through the through hole. A second nut is installed on the stud. After the second nut is tightened, the connecting rod is limited between the studs, the support plates and the lower surface of the flange.

[0023] An elastic heat transfer element is provided between the lid and the partition assembly. When the lid is sealed and installed on the box body, the elastic heat transfer element undergoes elastic deformation and simultaneously contacts the lid and the partition assembly for heat conduction.

[0024] The elastic heat transfer component includes multiple strip welded components fixedly disposed on the lower surface of the box cover. The multiple strip welded components are arranged in parallel and spaced apart. Each strip welded component includes a stiffener with an S-shaped cross-section. One side of the stiffener is connected to the lower surface of the box cover, and a wing plate is provided on the other side of the stiffener. The strip welded component is T-shaped in general. When the elastic heat transfer component undergoes elastic deformation, the stiffener is compressed, the distance between the wing plate and the lower surface of the box cover decreases, and each wing plate contacts the opening of the corresponding cavity.

[0025] The elastic heat transfer component is a corrugated plate, and the corrugation of the corrugated plate is an isosceles trapezoid. One side of the corrugated plate has a plurality of first contact portions spaced apart, and the first contact portions are in planar contact with the lower surface of the box cover. The other side of the corrugated plate has a plurality of second contact portions spaced apart, and the second contact portions are in contact with the openings of the corresponding cavities. There is a connecting inclined plate between adjacent first contact portions and second contact portions.

[0026] The connecting inclined plate is provided with multiple ventilation holes.

[0027] The beneficial effects of the utility model are as follows:

[0028] This utility model has a compact and reasonable structure and is easy to operate. The side walls, bottom walls and lid of the sample storage box are of equal thickness, forming a cavity with equal wall thickness. Multiple compartments are set in the cavity through a partition assembly. The cavity is suspended in a low-temperature constant temperature bath by a support leg, so that the sample liquid can be frozen efficiently, stably and uniformly in a short time in the cavity of the sample storage box, thereby improving the freezing effect of the sample liquid and the yield of the freeze-dried mask.

[0029] This utility model also has the following advantages:

[0030] (1) The legs are made of non-metallic material and can be detachably connected to the box body. On the one hand, it is convenient to replace the legs and adjust the height of the box body in the low temperature constant temperature bath. On the other hand, it avoids uneven temperature at the bottom of the box body corresponding to the legs due to heat exchange between the legs and the fluid at the bottom of the low temperature constant temperature bath.

[0031] (2) Each hinge bolt is detachably connected to the housing. After frequent use causes the threads of the hinge bolt to fail, it is easy to replace the hinge bolt. Multiple hinge bolts are grouped together, and each group of hinge bolts is detachably connected to the housing by a connecting rod, which improves the replacement efficiency of the hinge bolt.

[0032] (3) The connection structure between the connecting rod and the box is simple. The box and the connecting rod can be detached and disconnected by using a support plate and a stud fixed on the flange, making the installation and replacement of the hinge bolts convenient.

[0033] (4) An elastic heat transfer element is provided between the lid and the partition assembly to enable rapid heat exchange between the lid and the partition assembly, so that the heat in the sample liquid in the compartment is quickly carried away by the fluid outside the lid, and the temperature at the upper and lower ends of the individual compartment quickly becomes consistent. Attached Figure Description

[0034] Figure 1 It is a structural diagram of the present utility model.

[0035] Figure 2 This is a schematic diagram of the sample storage box of this utility model.

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0037] Figure 4 This is an exploded view of the sample storage box of this utility model.

[0038] Figure 5 This is an exploded view of the partition assembly of this utility model.

[0039] Figure 6 This is a schematic diagram of the assembly structure of an elastic heat transfer component according to an embodiment of the present invention.

[0040] Figure 7 This is a schematic diagram of the structure of an elastic heat transfer element according to an embodiment of the present invention.

[0041] Figure 8 This is a schematic diagram of the assembly structure of the elastic heat transfer component according to another embodiment of the present invention.

[0042] Figure 9 This is a schematic diagram of the structure of an elastic heat transfer element according to another embodiment of the present invention.

[0043] in:

[0044] 1. Low-temperature thermostatic bath;

[0045] 2. Box lid; 21. Second notch; 3. Handle;

[0046] 4. Fastening components; 41. Hinged bolt; 42. Limiting block; 43. Support plate; 44. Stud; 45. Connecting rod;

[0047] 5. Box body; 51. First notch; 52. Flange; 53. Box body; 54. Connecting groove;

[0048] 6. Outriggers; 7. Sealing gaskets;

[0049] 8. Partition assembly; 81. First partition member; 811. First slot; 82. Second partition member; 821. Second slot;

[0050] 91. Strip weldment; 911. Rib plate; 912. Wing plate; 92. Corrugated plate; 921. First contact part; 922. Second contact part; 923. Connecting inclined plate; 924. Vent hole. Detailed Implementation

[0051] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0052] Example 1:

[0053] like Figure 1-Figure 5 As shown, the sample storage box for the low-temperature constant temperature bath in this embodiment includes a box body 5, a box cover 2, a partition assembly 8, and support legs 6.

[0054] The lid 2 is sealed and installed at the opening of the box body 5;

[0055] The partition assembly 8 is detachably installed inside the box body 5, contacts the inner wall of the box body 5 and forms multiple cavities to separate the sample liquid inside the box body 5.

[0056] Support leg 6 is fixedly installed on the lower part of box body 5 to support box body 5;

[0057] Among them, the box body 5, the box cover 2 and the partition assembly 8 are all made of metal, and the side wall of the box body 5, the bottom wall of the box body 5 and the box cover 2 are of equal thickness.

[0058] When the sample storage box is placed in the low-temperature constant temperature bath 1, the lower end of the support leg 6 contacts the bottom of the low-temperature constant temperature bath 1, and the box body 5 is located in the middle of the low-temperature constant temperature bath 1. The fluid in the low-temperature constant temperature bath 1 exchanges heat with the box body 5 and the box cover 2, freezing the sample liquid in the cavity into sample blocks.

[0059] In this embodiment, the sample liquid is collagen solution. The collagen solution is rapidly frozen into a solid state, i.e., a sample block, in the low-temperature environment of the low-temperature constant temperature bath 1. Then, the sample storage box is transferred to a freeze dryer for freeze drying. The temperature of the low-temperature environment of the collagen solution in the low-temperature constant temperature bath 1 is usually between -40°C and -50°C to achieve rapid freezing of the collagen solution.

[0060] In this embodiment, the sample storage box for the low-temperature constant temperature bath is a device in which the box body 5 is placed in the low-temperature constant temperature bath 1 in a horizontally fixed and suspended manner. This enhances the stability of the sample liquid, ensures that the sample liquid is not affected by the fluid circulation in the low-temperature constant temperature bath 1, stabilizes the horizontal plane, and improves the yield of the freeze-dried mask.

[0061] The box body 5 and the box cover 2 form a sealed cavity with a uniform thickness on all six sides, ensuring consistent heat transfer and achieving a similar freezing rate when freezing the collagen solution, thus ensuring the density and uniformity of the finished product.

[0062] The internal partition assembly 8 of the box body 5 divides the cavity into multiple compartments, and the size of the compartments can be adjusted by replacing the partition assembly 8. The box body 5, the box cover 2, and the partition assembly 8 are all made of metal to improve the freezing efficiency of the sample liquid. Stainless steel is preferred, but aluminum can also be used.

[0063] A handle 3 is welded onto the lid 2 for easy operation.

[0064] The side walls, bottom walls, and lid 2 of the sample storage box are of equal thickness, forming a cavity with equal wall thickness. Multiple compartments are set in the cavity through the partition assembly 8. The cavity is suspended in the low temperature constant temperature bath 1 by the support legs 6, so that the sample liquid can be frozen efficiently, stably, and uniformly in the cavity of the sample storage box in a short time, thereby improving the freezing effect of the sample liquid and the yield of the freeze-dried mask.

[0065] like Figure 4 , Figure 5 As shown, the partition assembly 8 has a structure including a plurality of first partition members 81 and a plurality of second partition members 82;

[0066] Each first partition 81 is provided with a plurality of first slots 811 at intervals, and each second partition 82 is provided with a plurality of second slots 821 corresponding to the first slots 811 at intervals. After the first slots 811 and the second slots 821 are inserted into each other and placed in the box 5, a plurality of cavities are formed.

[0067] Both ends of each first partition 81 are in contact with the side wall of the box body 5, and the bottom of each first partition 81 is in contact with the bottom of the box body 5. Both ends of each second partition 82 are in contact with the side wall of the box body 5, and the bottom of each second partition 82 is in contact with the bottom of the box body 5. The upper opening of each compartment is flush with the box body 5.

[0068] Therefore, in actual operation, different specifications of first partition 81 and multiple second partitions 82 can be arranged according to product requirements to change the size of the product; the thickness of the first partition 81 and the second partition 82 can be equal to the thickness of the lid 2, preferably the thickness of the first partition 81 and the second partition 82 is less than the thickness of the lid 2, so as to balance the cooling rate of the internal cavity and the external cavity.

[0069] like Figure 2 As shown, there are multiple support legs 6. The lower part of the box body 5 is provided with multiple connecting slots 54. One end of the support leg 6 is detachably connected to the connecting slot 54, and the other end of the support leg 6 is used to contact the bottom of the low temperature constant temperature bath 1. The support leg 6 is made of non-metallic material.

[0070] like Figure 2 As shown, the support leg 6 is a cylindrical structure that is inserted into the connecting groove 54 of the cylindrical groove structure, or it can be connected by a thread.

[0071] The legs 6 are made of non-metallic material and can be detachably connected to the box body 5. This facilitates the replacement of the legs 6 and adjusts the height of the box body 5 in the low-temperature constant temperature bath 1. On the other hand, it avoids uneven temperature at the bottom of the box body 5 corresponding to the legs 6 due to heat exchange between the legs 6 and the fluid at the bottom of the low-temperature constant temperature bath 1.

[0072] Example 2:

[0073] Based on Example 1, the sample storage box for the low-temperature constant temperature bath in this example is as follows: Figure 3 , Figure 4 As shown, the structure of the box body 5 includes a box body 53, a flange 52 is provided at the opening of the box body 53, a sealing gasket 7 is provided between the flange 52 and the box cover 2, and a fastening assembly 4 for connecting the flange 52 and the box cover 2.

[0074] The fastening assembly 4 includes multiple hinge bolts 41, the flange 52 is provided with multiple first notches 51, and the cover 2 is provided with multiple second notches 21. The first notches 51 and the second notches 21 correspond one to one. The fisheye head of each hinge bolt 41 is detachably connected to the box body 5. The tail of the hinge bolt 41 is provided with a first nut. After the hinge bolt 41 is placed in the first notch 51 and the second notch 21 and the first nut is locked, the sealing gasket 7 undergoes elastic deformation to seal the opening of the box body 5.

[0075] Each hinge bolt 41 is detachably connected to the housing 5, making it easy to replace the hinge bolt 41 after frequent use causes the threads of the hinge bolt 41 to fail.

[0076] like Figure 3 , Figure 4 As shown, the box body 53 has a cuboid structure, and the multiple hinge bolts 41 are divided into four groups, corresponding to the four side walls of the box body 53 respectively. The number of hinge bolts 41 in each group is greater than or equal to two.

[0077] It also includes a connecting rod 45, the two ends of which are detachably connected to the housing 5, and a set of hinge bolts 41 are threaded through a connecting rod 45.

[0078] Multiple hinge bolts 41 are grouped together, and each group of hinge bolts 41 is detachably connected to the housing 5 by a connecting rod 45, thereby improving the replacement efficiency of the hinge bolts 41.

[0079] like Figure 3 As shown, it also includes multiple support plates 43 and multiple studs 44 corresponding to the multiple support plates 43. The cross-section of the support plate 43 is L-shaped. One support plate 43 is used to support one end of the connecting rod 45. The stud 44 is fixedly connected to the lower surface of the flange 52. The support plate 43 is provided with a through hole, and the stud 44 passes through the through hole. A second nut is installed on the stud 44. After the second nut is tightened, the connecting rod 45 is limited between the stud 44, the support plate 43 and the lower surface of the flange 52.

[0080] The connection structure between the connecting rod 45 and the housing 5 is simple. The detachable connection structure between the housing 5 and the connecting rod 45 can be achieved by using the support plate 43 and the stud 44 fixed on the flange 52. This makes the installation and replacement of the hinge bolt 41 convenient. When the hinge bolt 41 needs to be replaced, simply loosen the two corresponding second nuts to remove the connecting rod 45 from between the support plate 43 and the lower surface of the flange 52.

[0081] like Figure 3 As shown, it also includes a limiting block 42 fixedly installed on the lower surface of the flange 52. The limiting block 42 and the connecting rod 45 are located on both sides of the stud 44, limiting the position of the support plate 43 on the stud 44, ensuring the limiting effect of the support plate 43, and preventing the connecting rod 45 from coming off one side of the support plate 43 after the second nut is too close to the flange 52 and the support plate 43 tilts.

[0082] Example 3:

[0083] To further reduce the temperature difference between the upper and lower ends of a single compartment and improve the freezing effect of the sample liquid, it is preferable that the opening of the compartment is flush with and in contact with the lower surface of the lid 2 to improve the heat transfer rate. However, since it is necessary to ensure the seal between the lid 2 and the box body 5, the sealing gasket 7 will inevitably undergo elastic deformation. The degree of elastic deformation of the sealing gasket 7 is related to the sealing effect. Therefore, it is difficult to ensure that the opening of the compartment can be in complete contact with the lower surface of the lid 2.

[0084] Based on the above embodiments, the sample storage box for the low-temperature constant temperature bath in this embodiment is as follows: Figures 6-9 As shown, an elastic heat transfer element is provided between the lid 2 and the partition assembly 8. When the lid 2 is sealed and installed on the box body 5, the elastic heat transfer element undergoes elastic deformation and simultaneously contacts the lid 2 and the partition assembly 8 for heat conduction.

[0085] An elastic heat transfer element is provided between the lid 2 and the partition assembly 8 to enable rapid heat exchange between the lid 2 and the partition assembly 8. The heat in the sample liquid inside the compartment is quickly carried away by the fluid outside the lid 2, so that the temperature at the upper and lower ends of a single compartment quickly becomes uniform.

[0086] In one specific implementation, such as Figure 6 , Figure 7 As shown, the elastic heat transfer component includes multiple strip welded parts 91 fixedly disposed on the lower surface of the cover 2. The multiple strip welded parts 91 are arranged in parallel and spaced apart. Each strip welded part 91 includes a stiffener 911 with an S-shaped cross section. One side of the stiffener 911 is connected to the lower surface of the cover 2, and a wing plate 912 is provided on the other side of the stiffener 911. The strip welded part 91 is T-shaped in general. When the elastic heat transfer component undergoes elastic deformation, the stiffener 911 is compressed, the distance between the wing plate 912 and the lower surface of the cover 2 decreases, and each wing plate 912 contacts the opening of the corresponding cavity.

[0087] Specifically, the elastic heat transfer component is made of metal, the stiffener 911 is welded to the lower surface of the cover 2, and the stiffener 911 is welded to the wing plate 912.

[0088] In another specific implementation, such as Figure 8 , Figure 9 As shown, the elastic heat transfer component is a corrugated plate 92. The corrugation of the corrugated plate 92 is an isosceles trapezoid. One side of the corrugated plate 92 has a plurality of first contact portions 921 spaced apart. The first contact portions 921 are in planar contact with the lower surface of the cover 2. The other side of the corrugated plate 92 has a plurality of second contact portions 922 spaced apart. The second contact portions 922 are in contact with the openings of the corresponding cavities. A connecting inclined plate 923 is between adjacent first contact portions 921 and second contact portions 922.

[0089] When the elastic heat transfer component undergoes elastic deformation, the height direction of the isosceles trapezoid is compressed, the tilt angle of the connecting inclined plate 923 changes, and the relative positions of the first contact part 921 and the second contact part 922 change, but it still contacts the lower surface of the box cover 2 and the opening of the cavity.

[0090] Furthermore, multiple ventilation holes 924 are provided on the connecting inclined plate 923. This connects the spaces on both sides of the corrugated plate 92, making the temperature more even.

[0091] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A sample storage box for a low-temperature thermostat bath, characterized in that: include Box body (5); The lid (2) is sealed and installed at the opening of the box body (5); The partition assembly (8) is detachably disposed inside the box body (5), contacts the inner wall of the box body (5) and forms multiple cavities to separate the sample liquid inside the box body (5); Support leg (6), the support leg (6) is fixedly installed on the lower part of the box body (5) to support the box body (5); The box body (5), the lid (2) and the partition assembly (8) are all made of metal, and the side wall of the box body (5), the bottom wall of the box body (5) and the lid (2) are of equal thickness. When the sample storage box is placed in the low temperature constant temperature bath (1), the lower end of the support leg (6) is in contact with the bottom of the low temperature constant temperature bath (1), the box body (5) is located in the middle of the low temperature constant temperature bath (1), the fluid in the low temperature constant temperature bath (1) exchanges heat with the box body (5) and the box cover (2) to freeze the sample liquid in the cavity into sample blocks.

2. The sample storage box for a low-temperature thermostat bath as described in claim 1, characterized in that: The structure of the partition assembly (8) includes a plurality of first partition members (81) and a plurality of second partition members (82); Each first partition (81) is provided with a plurality of first slots (811) spaced apart, and each second partition (82) is provided with a plurality of second slots (821) corresponding to the first slots (811) spaced apart. After the first slots (811) and the second slots (821) are inserted into each other and placed in the box (5), a plurality of cavities are formed. The two ends of each first partition (81) are in contact with the side wall of the box body (5), the bottom of each first partition (81) is in contact with the bottom of the box body (5), the two ends of each second partition (82) are in contact with the side wall of the box body (5), the bottom of each second partition (82) is in contact with the bottom of the box body (5), and the upper opening of each compartment is flush with the top opening.

3. The sample storage box for a low-temperature thermostat bath as described in claim 1, characterized in that: The number of the support legs (6) is multiple, and the lower part of the box body (5) is provided with multiple connecting grooves (54). One end of the support leg (6) is detachably connected to the connecting groove (54), and the other end of the support leg (6) is used to contact the bottom of the low temperature constant temperature bath (1). The support leg (6) is made of non-metallic material.

4. The sample storage box for a low-temperature thermostat bath as described in claim 1, characterized in that: The structure of the box body (5) includes a box body (53), a flange (52) is provided at the opening of the box body (53), a sealing gasket (7) is provided between the flange (52) and the box cover (2), and also includes a fastening assembly (4) for connecting the flange (52) and the box cover (2). The fastening assembly (4) includes multiple hinge bolts (41), the flange (52) is provided with multiple first notches (51), and the cover (2) is provided with multiple second notches (21). The first notches (51) and the second notches (21) correspond one to one. The fisheye head of each hinge bolt (41) is detachably connected to the box body (5). The tail of the hinge bolt (41) is provided with a first nut. After the hinge bolt (41) is placed in the first notch (51) and the second notch (21) and the first nut is locked, the sealing gasket (7) undergoes elastic deformation to seal the opening of the box body (5).

5. The sample storage box for a low-temperature thermostat bath as described in claim 4, characterized in that: The box body (53) is a cuboid structure. The multiple hinge bolts (41) are divided into four groups, which correspond to the four side walls of the box body (53) respectively. The number of hinge bolts (41) in each group is greater than or equal to two. It also includes a connecting rod (45), the two ends of which are detachably connected to the box body (5), and a set of hinge bolts (41) are threaded through a connecting rod (45).

6. The sample storage box for a low-temperature thermostat bath as described in claim 5, characterized in that: It also includes multiple support plates (43) and multiple studs (44) corresponding to the multiple support plates (43). The cross section of the support plate (43) is L-shaped. One support plate (43) is used to support one end of the connecting rod (45). The stud (44) is fixedly connected to the lower surface of the flange (52). The support plate (43) is provided with a through hole. The stud (44) passes through the through hole. A second nut is installed on the stud (44). After the second nut is tightened, the connecting rod (45) is limited between the stud (44), the support plate (43) and the lower surface of the flange (52).

7. The sample storage box for a low-temperature thermostat bath as described in claim 1, characterized in that: An elastic heat transfer element is provided between the lid (2) and the partition assembly (8). When the lid (2) is sealed on the box body (5), the elastic heat transfer element undergoes elastic deformation and simultaneously contacts the lid (2) and the partition assembly (8) for heat conduction.

8. The sample storage box for a low-temperature thermostat bath as described in claim 7, characterized in that: The elastic heat transfer component includes a plurality of strip welded parts (91) fixedly disposed on the lower surface of the box cover (2). The plurality of strip welded parts (91) are arranged in parallel and spaced apart. Each strip welded part (91) includes a stiffener (911) with an S-shaped cross section. One side of the stiffener (911) is connected to the lower surface of the box cover (2), and a wing plate (912) is provided on the other side of the stiffener (911). The strip welded part (91) is T-shaped in general. When the elastic heat transfer component undergoes elastic deformation, the stiffener (911) is compressed, the distance between the wing plate (912) and the lower surface of the box cover (2) decreases, and each wing plate (912) contacts the opening of the corresponding cavity.

9. The sample storage box for a low-temperature thermostat bath as described in claim 7, characterized in that: The elastic heat transfer component is a corrugated plate (92). The corrugation of the corrugated plate (92) is an isosceles trapezoid. One side of the corrugated plate (92) has a plurality of first contact portions (921) spaced apart. The first contact portions (921) are in planar contact with the lower surface of the box cover (2). The other side of the corrugated plate (92) has a plurality of second contact portions (922) spaced apart. The second contact portions (922) are in contact with the opening of the corresponding cavity. There is a connecting inclined plate (923) between adjacent first contact portions (921) and second contact portions (922).

10. The sample storage box for a low-temperature thermostat bath as described in claim 9, characterized in that: The connecting inclined plate (923) is provided with multiple ventilation holes (924).

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