Sample storage device

Abstract

The utility model discloses a sample storage device. The sample storage device comprises a shell, a storage tank and a foldable step ladder, an accommodating space is formed in the shell; the storage tank is arranged in the accommodating space and is fixedly connected with the shell; the storage tank is used for storing a biological sample; the step ladder is arranged on the side wall of the shell and has a folded state of being contained in the containing space and an unfolded state of being unfolded out of the containing space, and when the step ladder is in the folded state, the outer side face of the step ladder is not exposed out of the side face, where the step ladder is located, of the shell. According to the sample storage device, the step ladder is folded and stored by arranging the magnetic body, the structure is simple, the situation that the step ladder cannot be opened due to lock catch or system problems is avoided, and the step ladder can be completely stored in the shell, so that the appearance consistency of the whole device is higher, meanwhile, the size of the whole device is reduced, and the sample storage device is more convenient to transport.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a sample storage device. Background Art

[0002] Biological samples generally need to be stored at low temperature. Currently, most tissue, blood, DNA, biological fluid, and protein samples are generally stored at -196°C. The storage container is generally an ultra-low temperature liquid nitrogen tank. The biological samples are deposited or taken out manually. During the manual operation, the basket loaded with the sample box needs to be lifted out of the liquid nitrogen tank from the top of the liquid nitrogen tank. To facilitate the operator to access the target sample box, some manufacturers are equipped with a step ladder on the outer shell of the liquid nitrogen tank. The existing step ladder is directly fixed on the shell, with a large volume and inconvenient transportation, especially when entering a smaller elevator.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present utility model and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a sample storage device with a step ladder having a simple structure, which is convenient for the staff to operate.

[0005] To achieve the above purpose, a specific embodiment of the present utility model provides a sample storage device, including a shell, a storage tank, and a foldable step ladder. The interior of the shell has an accommodation space; the storage tank is arranged in the accommodation space and fixedly connected to the shell, and the storage tank is used for storing biological samples; the step ladder is arranged on the side wall of the shell, and has a folded state of being received into the accommodation space and an unfolded state of being extended outside the accommodation space. When the step ladder is in the folded state, the outer side surface of the step ladder does not protrude from the side surface of the shell where it is located.

[0006] In one or more embodiments of the present utility model, a magnetic body is provided on one of the step ladder and the shell, and the other is also provided with a magnetic body or at least partially made of magnetic material, so that in the folded state, the step ladder is received into the accommodation space and fixed to the side wall of the shell by magnetic force.

[0007] In one or more embodiments of the present utility model, the step ladder includes a plurality of pedals, and the magnetic body is fixed on the lowermost pedal.

[0008] In one or more embodiments of the present utility model, the uppermost pedal is connected to the shell through a damping rod, and adjacent pedals are connected through a connecting rod.

[0009] In one or more embodiments of the present utility model, chutes are provided on the pedals other than the uppermost pedal, and one end of the connecting rod connecting adjacent pedals is pivotally connected to the pedal above, and the other end is connected to the chute of the pedal below.

[0010] In one or more embodiments of the present utility model, a handle is provided on the lowermost pedal, and the handle is fixed to the side of the pedal facing away from the housing.

[0011] In one or more embodiments of the present utility model, the handle is configured to abut against the ground when the pedal is unfolded to be parallel to the horizontal plane.

[0012] In one or more embodiments of the present utility model, the storage tank includes a main tank body and a cover body that are rotatably connected, the cover body is fixed to the housing, the main tank body is supported by the housing, and a driving mechanism for driving the main tank body to rotate is further provided in the housing.

[0013] In one or more embodiments of the present utility model, the driving mechanism includes a driving motor, a first gear, and a second gear. The driving motor and the first gear are fixed to the bottom of the main tank body, and the second gear is fixed to the output shaft of the driving motor and meshes with the first gear.

[0014] In one or more embodiments of the present utility model, a plurality of baskets for placing samples are provided in the storage tank, and a lifting assembly for lifting the baskets into or out of the storage tank is provided at the top of the housing. The lifting assembly includes a bracket fixed to the top of the housing and a lifting rope installed on the bracket.

[0015] Compared with the prior art, the sample storage device of the present utility model realizes the folding and storage of the stepladder by setting magnetic bodies, has a simple structure, will not be unable to open the stepladder due to lock or system problems, and the stepladder can be completely stored in the housing. Therefore, the appearance consistency of the whole device is higher, and at the same time, the volume of the whole device is reduced, making it more convenient for transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of a sample storage device in an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the sample storage device when the step ladder is in the folded state in an embodiment of the present utility model;

[0019] Figure 3 Internal schematic diagram of the housing in an embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the bottom of the storage tank in an embodiment of the present utility model.

[0021] Main reference numeral description:

[0022] 100 - Sample storage device, 10 - Storage tank, 11 - Main tank body, 12 - Cover body, 13 - First gear, 14 - Driving motor, 15 - Second gear, 16 - Basket, 20 - Housing, 21 - Step ladder, 211 - Pedal, 212 - Link rod, 213 - Damping rod, 214 - Chute, 215 - Handle, 22 - Notch, 23 - Cover plate, 24 - Bracket, 25 - Suspension rope, 26 - Wheel. Detailed implementation manners

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1-4 shown, the sample storage device 100 in an embodiment of the present utility model includes a storage tank 10, a housing 20, and a foldable step ladder 21. An accommodation space is formed inside the housing 20. The storage tank 10 is used for storing biological samples, which is arranged in the accommodation space inside the housing 20 and fixedly connected to the housing 20. The step ladder 21 is arranged on the side wall of the housing 20 for an operator to approach the storage tank 10. The step ladder 21 has two states, namely a folded state in which it is received into the accommodation space and an unfolded state in which it is extended outside the accommodation space. When in the folded state, the outer side surface of the step ladder 21 does not protrude from the side surface of the housing 20 where it is located, so as to improve the consistency of the appearance of the entire sample storage device 100, and at the same time reduce the volume of the entire sample storage device 100, making it more convenient for transportation.

[0025] In as Figure 2In the illustrated embodiment, the side surface of the housing 20 for installing the ladder 21 is recessed inward at the middle position, presenting a structure with both sides protruding from the middle. When the ladder 21 is in the folded state, its outermost surface is flush with the surface of the middle part of this side surface. Or when the entire surface of the side of the housing 20 where the ladder 21 is located is flat without recesses or protrusions, the outer side surface of the ladder 21 is flush with this side surface.

[0026] In one embodiment, at least one of the ladder 21 and the housing 20 is provided with a magnetic body (such as a magnet), so that when in the folded state, the ladder 21 is received in the accommodation space inside the housing 20 and is fixed to the side wall of the housing 20 by magnetic force. It can be understood that since the ladder 21 is adsorbed to the housing 20 by the magnetic force of the magnet, the adsorption part of the ladder 21 and / or the housing 20 is made of a magnetic material.

[0027] The sample storage device 100 in this embodiment is provided with a foldable and retractable ladder 21 and a magnetic body. When the ladder 21 is folded to a certain position, the ladder 21 can be adsorbed on the side wall of the housing 20 under the action of magnetic force without other fixing operations. When the ladder 21 needs to be unfolded, only a slight force is required to overcome the magnetic attraction force on the ladder 21, and then it can be unfolded to a state where it can be stood on. The ladder 21 can be received inside the housing 20 in the folded state, and the ladder 21 will not be exposed when not in use, thus improving the appearance consistency of the sample storage device 100.

[0028] Specifically, the ladder 21 includes a plurality of treads 211. All the treads 211 are arranged up and down and are pivotally connected to the housing 20. When the lowermost tread 211 is folded and received towards the side wall of the housing 20, it is at the outermost side of the entire ladder 21. Therefore, the magnetic body can be fixed on the lowermost tread 211.

[0029] In one embodiment, adjacent treads 211 are connected by connecting rods 212, and the uppermost tread 211 is only connected to the side wall of the housing 20 by a damping rod 213. Under the action of the connecting rods 212, all the treads 211 can be unfolded or folded synchronously, and under the action of the damping rod 213, the entire ladder 21 can be slowly unfolded to avoid danger caused by too fast unfolding.

[0030] If the connecting rod 212 is directly rotatably connected to the two pedals 211, since the distance between the connecting positions on the two pedals 211 changes when the stepladder 21 is unfolded or folded and stored, the connecting rod 212 needs to adopt a rod body with variable length. In this embodiment, except for the uppermost pedal 211, sliding grooves 214 are provided on the remaining pedals 211. One end of the connecting rod 212 is directly rotatably connected to the upper pedal 211, and the other end is fixed in the sliding groove 214, so that one end of the connecting rod 212 can move on one of the pedals 211 when the stepladder 21 is unfolded and folded and stored. At this time, the connecting rod 212 can adopt a rod body with a fixed length.

[0031] Preferably, a handle 215 is provided on the lowermost pedal 211, and the handle 215 is provided on the side of the pedal 211 facing away from the housing 20 for the operator to grip when unfolding or folding and storing the stepladder 21.

[0032] Furthermore, the handle 215 is configured such that when the pedal 211 is unfolded to be flush with the horizontal plane, it abuts against the ground supporting the entire sample storage device 100. Therefore, the handle 215 further serves as a support for the entire stepladder 21. When the entire stepladder 21 is unfolded, it is supported on the ground through the handle 215 to prevent the connecting rod 212 from detaching due to excessive force, or even causing damage to the entire stepladder 21.

[0033] In an embodiment, the lowermost pedal 211 has the largest size, and the remaining pedals 211 distributed upward are all smaller than the lowermost pedal 211, and the sizes can be gradually reduced or the same. A notch 22 is provided at the position of the stepladder 21 on the housing 20, and the size of the notch 22 is equivalent to the size of the lowermost pedal 211. When the stepladder 21 is folded and stored, the remaining pedals 211 are stored inside the housing 20 through the notch 22, and the lowermost pedal 211 rotates to the position of the notch 22. And when in the folded state, the lowermost pedal 211 is flush with the side wall surface of the housing 20 where it is located, and only the handle 215 is exposed, thereby improving the consistency of the surface of the housing 20. Of course, to avoid interference from the handle 215 when moving the entire sample storage device 100, the handle 215 can also be fixed to the pedal 211 in a pivotally connected manner. After the entire stepladder 21 is stored in the housing 20, the handle 215 is rotated and stored in the direction of the pedal 211 synchronously.

[0034] Such as Figure 3 and 4As shown in the figure, the storage tank 10 includes a main tank body 11 and a cover body 12, which are rotatably connected. Multiple biological samples can be stored in the main tank body 11. The cover body 12 is fixed on the housing 20, and the main tank body 11 is supported on the housing 20. A driving mechanism for driving the main tank body 11 to rotate is provided on the housing 20, and a window (not shown in the figure) communicating with the inlet and outlet at the top of the housing 20 is provided on the cover body 12. Since the cover body 12 is fixed to the housing 20 and thus cannot rotate, when different biological samples need to be taken out, the main tank body 11 can rotate around its own axis under the action of the driving mechanism, aligning the target sample to the window and the inlet and outlet and then taking it out. Or when biological samples need to be put into the main tank body 11, the main tank body 11 rotates to align the internal idle position with the window and the inlet and outlet, so as to place the samples into the main tank body 11.

[0035] Since the cover body 12 and the housing 20 are fixedly connected, a cover plate 23 is provided at the top of the housing 20, which can be embedded into the inlet and outlet of the housing 20 and the window of the cover body 12 at the same time to complete the enclosure of the internal storage space of the main tank body 11.

[0036] In one embodiment, the main tank body 11 is rotatably supported on the bottom plate of the housing 20. The driving mechanism includes a driving motor 14, a first gear 13 and a second gear 15. The driving motor 14 and the first gear 13 are fixed to the bottom of the main tank body 11, and the second gear 15 is fixed to the output shaft of the driving motor 14 and meshes with the first gear 13. Therefore, with the cooperation of the two gears, the driving motor 14 can drive the main tank body 11 to rotate.

[0037] As Figure 1 shown, a plurality of baskets 16 for placing biological samples are provided in the storage tank 10. And for the convenience of placing and taking out, a lifting assembly is provided at the top of the housing 20. The lifting assembly specifically includes a bracket 24 fixed above the inlet and outlet, and a lifting rope 25 for contacting and lifting the basket 16. The bracket 24 is fixed on the housing 20 and is L-shaped, and the lifting rope 25 can enter the storage tank 10.

[0038] In one embodiment, a plurality of wheels 26 are provided at the bottom of the housing 20. Therefore, the sample storage device 100 can be moved, and it can be conveniently moved to the target position through the wheels 26, with high flexibility. Further, the wheels 26 can be locked to only need to be fixed after moving to the target position to avoid situations such as vehicle slipping.

[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sample storage device, characterized in that, Comprising: A housing having an accommodation space therein; A storage tank disposed within the accommodation space and fixedly connected to the housing, the storage tank being used for storing biological samples; And A foldable step ladder provided on the housing, the step ladder having a folded state in which it is received within the accommodation space and an unfolded state in which it is extended outside the accommodation space, when the step ladder is in the folded state, the outer side surface of the step ladder does not protrude from the side surface of the housing where it is located.

2. The sample storage device according to claim 1, wherein One of the step ladder and the housing is provided with a magnetic body, and the other is also provided with a magnetic body or at least partially made of a magnetic material, such that in the folded state, the step ladder is received within the accommodation space and magnetically fixed to the side wall of the housing.

3. The sample storage device according to claim 2, characterized in that, The step ladder includes a plurality of treads, and the magnetic body is fixed to the lowermost tread.

4. The sample storage device according to claim 3, characterized in that, The uppermost tread is connected to the housing by a damping rod, and adjacent treads are connected by a connecting rod.

5. The sample storage device according to claim 4, characterized in that, Sliding grooves are formed on the remaining treads except the uppermost tread, and one end of the connecting rod connecting adjacent treads is pivotally connected to the tread located above, and the other end is connected to the sliding groove of the tread located below.

6. The sample storage device according to claim 3, characterized in that, A handle is provided on the lowermost tread, and the handle is fixed to the side of the tread facing away from the housing.

7. The sample storage device according to claim 6, characterized in that, The handle is configured to abut against the ground when the tread is unfolded to be parallel to the horizontal plane.

8. The sample storage device according to claim 1, wherein The storage tank includes a main tank body and a cover body that are rotatably connected, the cover body is fixed to the housing, the main tank body is supported by the housing, and a driving mechanism for driving the main tank body to rotate is further provided within the housing.

9. The sample storage device according to claim 8, wherein, The driving mechanism includes a driving motor, a first gear, and a second gear, the driving motor and the first gear are fixed to the bottom of the main tank body, the second gear is fixed to the output shaft of the driving motor and meshes with the first gear.

10. The sample storage device according to claim 1, characterized in that, A plurality of baskets for placing samples are provided within the storage tank, and a lifting assembly for lifting the baskets into or out of the storage tank is provided at the top of the housing, the lifting assembly includes a bracket fixed to the top of the housing and a lifting rope installed on the bracket.

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