CN210913678U

CN210913678U - Low temperature sample transport case

Info

Publication number: CN210913678U
Application number: CN201921520401.4U
Authority: CN
Inventors: 汪进
Original assignee: Hefei Dean Medical Laboratory Co ltd
Current assignee: Hefei Dean Medical Laboratory Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-03
Anticipated expiration: 2029-09-12

Abstract

The utility model provides a low temperature sample transport case relates to sample transportation field, which comprises a housin, the casing top is connected with sealed lid, the casing includes outer heat preservation shell, the lagging casing center is equipped with interior heat preservation shell, be equipped with the drum chamber between outer heat preservation shell and the interior heat preservation shell, the inside cavity that is equipped with of interior heat preservation shell, the drum intracavity is equipped with out the stock solution section of thick bamboo, be equipped with first heat transfer board in the stock solution section of thick bamboo, first heat transfer board passes through heat conduction device and is connected with the second heat transfer board, the second heat transfer board is located the cavity, the stock solution pot outside is connected with the relief valve that runs through outer heat preservation shell. In the utility model, the space in the inner heat-insulating shell is cooled by utilizing the gasification of the cooling liquid to take away heat, so as to form a low-temperature area, thereby achieving the effect of low-temperature transportation, not needing electricity and being more convenient; when the sealing cover is opened, the cooling liquid in the liquid storage tank stops absorbing heat, and waste of the cooling liquid is avoided.

Description

Low temperature sample transport case

Technical Field

The utility model relates to a sample transportation field especially relates to a low temperature sample transport case.

Background

At present, the transportation of the experimental samples adopts a cold storage and insulation box, the transportation conditions of the experimental samples are different according to different detection items, some detection items require the samples to be transported under the normal temperature condition, some items require the samples to be transported under the cold storage condition of 2-8 ℃, and other detection items require the samples to be transported under the freezing condition below-20 ℃. And experiment sample transports case in the existing market is only applicable to transporting of sample under the two kinds of conditions of normal atmospheric temperature and cold-stored, and the special sample that is not applicable to under the freezing condition transports the case to, current experiment sample transports case often only has the storage function, and the sample transport case of the freezing type of low temperature need adopt power equipment, often need dispose special power in order to be the transport case energy supply on the transport vechicle.

However, the difficulty of electric energy supplement of the transport means is high, and time is wasted, so that the low-temperature transport box cannot be always kept at a lower temperature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature specimen transport case to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a low temperature sample transport case, includes the casing, the casing top is connected with sealed lid, the casing includes outer heat preservation shell, the heat preservation shell center is equipped with interior heat preservation shell, be equipped with the drum chamber between outer heat preservation shell and the interior heat preservation shell, the inside cavity that is equipped with of interior heat preservation shell, the drum intracavity is equipped with out the stock solution section of thick bamboo, be equipped with first heat transfer board in the stock solution section of thick bamboo, first heat transfer board passes through heat conduction device and is connected with the second heat transfer board, the second heat transfer board is located the cavity, the stock solution pot outside is connected with the relief valve that runs through outer heat preservation shell.

Preferably, the heat conduction device comprises a connection shell, two ends of the connection shell are respectively connected with the first heat exchange plate and the second heat exchange plate, a first heat conduction block is arranged at one end, close to the second heat exchange plate, in the connection shell, the first heat conduction block penetrates through the second heat exchange plate and is respectively connected with the connection shell and the second heat exchange plate in a sliding mode, one end, located in the connection shell, of the first heat conduction block is connected with a first spring, the other end of the first spring is fixedly connected with the fixed block, and a second heat conduction block is arranged in the connection shell of the first heat exchange plate.

Preferably, the right side of the second heat conduction block is provided with a third heat conduction block which is crossed with the fixed block in space.

Preferably, the bottom side of the connecting shell is provided with a sliding block which penetrates through the bottom side of the connecting shell and is in sliding connection with the connecting shell, one end of the sliding block, which is positioned in the connecting shell, is fixedly connected with a clamping block, a second spring is connected between the top end of the clamping block and the fixing block, and the end of the clamping block is respectively abutted to the first heat-conducting block and the second heat-conducting block.

Preferably, the first heat exchange plate, the second heat exchange plate, the first heat conduction block, the second heat conduction block and the third heat conduction block are all made of heat conduction materials, and the connection shell, the fixed block and the sliding block are respectively made of heat insulation materials.

Preferably, the top of the inner heat-insulating shell is provided with a groove clamped with the outer side of the connecting shell, and the top of the outer heat-insulating shell is provided with a groove clamped with the outer side of the pressure release valve.

Preferably, the right end of the first spring is fixedly connected with an adjusting bolt penetrating through the first heat-conducting block, the left end of the first spring is rotatably connected with the fixed block, and the adjusting bolt is in threaded connection with the first heat-conducting block.

Preferably, the liquid storage cylinder is filled with liquid nitrogen, dry ice or a mixture of liquid nitrogen and dry ice.

The utility model has the advantages that:

in the utility model, the liquid storage cylinder is connected with the shell, the shell is used for heat preservation and heat insulation, the first heat exchange plate and the second heat exchange plate are connected through the heat conduction device, so that the object in the inner heat preservation shell exchanges heat with the cooling liquid in the liquid storage tank, the heat is taken away by gasification of the cooling liquid, the space in the inner heat preservation shell is cooled, a low-temperature area is formed, the effect of low-temperature transportation is achieved, no electricity is needed, and the heat insulation device is more convenient; the sliding block, the first heat-conducting block and the second heat-conducting block are arranged in the heat-conducting device, and the clamping block connected to the sliding block is used for controlling the first heat-conducting block to be in contact with the second heat-conducting block, so that when the shell is opened, cooling liquid in the liquid storage tank stops absorbing heat, and waste of the cooling liquid is avoided; the bolt is connected to the second heat-conducting block, the length of the first spring is controlled by the bolt, and the first spring is made to stretch by the air pressure difference between the two ends of the first heat-conducting block, so that the contact between the first heat-conducting block and the second heat-conducting block is controlled, and the temperature difference is reacted by the pressure difference, so that the purpose of controlling the temperature in the inner heat-insulating shell is achieved.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the heat transfer device of the present invention;

fig. 4 is a schematic structural view of a first heat-conducting block of the present invention;

reference numerals: 1. a housing; 101. an outer insulating shell; 1011. fastening a bolt; 102. an inner heat-insulating shell; 1021. a groove; 2. a liquid storage cylinder; 3. a sealing cover; 301. a bolt block; 4. a heat conducting device; 401. a connecting shell; 402. a first heat-conducting block; 4021. a bolt; 4022. a chute; 403. a first spring; 404. a fixed block; 405. a slider; 406. a clamping block; 407. a second spring; 4071. a third heat-conducting block; 408. a second heat-conducting block; 5. a pressure relief valve; 6. a first heat exchange plate; 7. a second heat exchange plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in FIGS. 1-4, a low-temperature specimen transportation box comprises a shell 1, a sealing cover 3 is connected to the top of the shell 1, the shell 1 comprises an outer heat preservation shell 101, an inner heat preservation shell 102 is arranged at the center of the heat preservation shell, a cylindrical cavity is arranged between the outer heat preservation shell 101 and the inner heat preservation shell 102, a cavity is arranged inside the inner heat preservation shell 102, a liquid storage cylinder 2 is arranged in the cylindrical cavity, a first heat exchange plate 6 is arranged in the liquid storage cylinder 2, the first heat exchange plate 6 is connected with a second heat exchange plate 7 through a heat conduction device 4, the second heat exchange plate 7 is arranged in the cavity, a pressure release valve 5 penetrating through the outer heat preservation shell 101 is connected to the outer side of the liquid storage cylinder, the heat conduction device 4 comprises a connection shell 401, two ends of which are respectively connected with the first heat exchange plate 6 and the second heat exchange plate 7, a first heat conduction block 402 is arranged at one end, close to the second heat exchange plate, The second heat exchange plate 7 is connected in a sliding manner, one end of the first heat conduction block 402, which is located in the connecting shell 401, is connected with a first spring 403, the other end of the first spring 403 is fixedly connected with a fixed block 404, and a second heat conduction block 408 is arranged in the connecting shell 401 of the first heat exchange plate 6.

During low-temperature transportation, a specimen is placed in a cavity in the inner heat-insulation shell 102, the liquid storage cylinder 2 is placed in a cylinder cavity, the sealing cover 3 is covered, the bolt block 301 on the sealing cover 3 is clamped with the clamping bolt 1011 on the outer heat-insulation shell 101, heat in the first heat exchange plate 6 is transmitted to the second heat exchange plate 7 in the liquid storage cylinder 2 sequentially through the first heat exchange plate 6, the first heat conduction block 402 and the second heat conduction block 408, the heat on the second heat exchange plate 7 exchanges heat with cooling liquid, so that the cooling liquid can be gasified, meanwhile, the second heat exchange plate 7 is cooled, after the cooling liquid is gasified, the pressure in the liquid storage cylinder 2 is increased, the gasified gas is discharged through the pressure release valve 5, after a period of time, the pressure in the cavity is reduced, the pressure difference between two ends of the first heat conduction block 402 is reduced, under the elastic force action of the first spring 403, the first heat conduction block 402 slides relative to be separated from the second heat conduction block 408 relative to the connection shell 401, therefore, heat transfer is not performed any more, and the temperature in the housing 1 is at a certain value, and it should be understood here that a vacuum is formed between the first heat conduction block 402 and the second heat conduction block 408 in the connection housing 401, so that heat transfer through air can be avoided, and internal pressure change after the distance between the first heat conduction block 402 and the second heat conduction block 408 is changed can be avoided.

Example 2

As shown in fig. 1-4, a third heat conduction block 4071 spatially crossed with the fixed block 404 is disposed on the right side of the second heat conduction block 408, a slider 405 penetrating through the bottom side of the connection housing 401 and slidably connected therewith is disposed on the bottom side of the connection housing 401, a latch 406 is fixedly connected to one end of the slider 405 located in the connection housing 401, a second spring 407 is connected between the top end of the latch 406 and the fixed block 404, ends of the latch 406 respectively contact with the first heat conduction block 402 and the second heat conduction block 408, the first heat exchange plate 6, the second heat exchange plate 7, the first heat conduction block 402, the second heat conduction block 408 and the third heat conduction block 4071 are made of heat conducting materials, the connection housing 401, the fixed block 404 and the slider 405 are respectively made of heat insulating materials, a groove 1021 engaged with the outer side of the connection housing 401 is disposed on the top of the inner heat insulation housing 102, and a groove 1021 engaged with.

When the first heat conduction block 402 slides in the connection shell 401 under the action of pressure difference between two ends, the first heat conduction block 402 compresses the spring, the slot at the left end of the first heat conduction block 402 moves relative to the third heat conduction block 4071, so that the third heat conduction block 4071 is inserted into the slot, and the first heat conduction block 402 is in contact with the first heat conduction block 402 through the third heat conduction block 4071 to realize heat transfer, when the sealing cover 3 is opened, the fixture block 406 and the slider 405 move downwards relative to the connection shell 401 under the action of the elastic force of the second spring 407, one end of the fixture block 406 slides relative to the chute 4022 on the first heat conduction block 402, meanwhile, the inner bottom of the chute 4022 is an inclined surface, so that the first heat conduction block 402 can slide towards the right side relative to the connection shell 401, the first heat conduction block 402 is separated from the third heat conduction block 4071, so that heat transfer can be stopped, and loss of cooling liquid caused by heat exchange with air after the cavity is in contact with external hot air when the sealing cover 3 is opened, the cooling liquid consumption is saved, after the sealing cover 3 is sealed, the sliding block 405 in the heat conduction device 4 moves in the connecting shell 401 and compresses the second spring 407, the first heat conduction block 402 can slide in the connecting shell 401, the heat conduction material adopts copper, and the heat insulation material adopts a nanometer heat insulation plate.

Example 3

As shown in fig. 1 to 4, the right end of the first spring 403 is fixedly connected with an adjusting bolt 4021 penetrating through the first heat-conducting block 402, the left end of the first spring 403 is rotatably connected with the fixing block 404, the adjusting bolt 4021 is in threaded connection with the first heat-conducting block 402, and the liquid storage cylinder 2 is filled with liquid nitrogen, dry ice or a mixture of the liquid nitrogen and the dry ice.

The dry ice, the liquid nitrogen temperature is lower and five poison, can take away a large amount of heats after the gasification, a coolant liquid has safety, advantage that the cooling effect is good, when adjusting the distance between first heat conduction piece 402 and the mount, rotate bolt 4021 and can change the distance between fixed block 404 and the first heat conduction piece 402, need different pressure differentials to make first heat conduction piece 402 and third heat conduction piece 4071 contact promptly, and the pressure differential changes and can make the temperature change in the cavity, thereby reach the effect of control cavity interior temperature.

The working principle is as follows: the utility model discloses when using, to wait to transport the sample and arrange in the cavity, cover the dense layer lid, first heat conduction piece 402 can slide for connecting shell 401 under the pressure differential effect among the heat conduction device 4, when first heat conduction piece 402 contacts with third heat conduction piece 4071, heat in the cavity passes through first heat transfer board 6 in proper order, first heat conduction piece 402, third heat conduction piece 4071, second heat conduction piece 408 transmits to second heat transfer board 7, the evaporation of the cooling liquid in the liquid reserve cylinder 2, high-pressure gas passes through relief valve 5 and discharges, can make the temperature reduce in the cavity, reach the effect of low temperature transportation, need not to use the electric energy in the transportation, the trouble problem of transport case charging in the sample transportation has been solved.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a low temperature specimen transport case, includes casing (1), casing (1) top is connected with sealed lid (3), its characterized in that: casing (1) is including outer heat preservation shell (101), heat preservation shell (102) in outer heat preservation shell (101) center is equipped with, be equipped with the cylinder chamber between outer heat preservation shell (101) and interior heat preservation shell (102), the inside cavity that is equipped with of interior heat preservation shell (102), the cylinder intracavity is equipped with out liquid reserve cylinder (2), be equipped with first heat transfer board (6) in liquid reserve cylinder (2), first heat transfer board (6) are connected with second heat transfer board (7) through heat conduction device (4), second heat transfer board (7) are located the cavity, the liquid reserve cylinder (2) outside is connected with relief valve (5) that run through outer heat preservation shell (101).

2. The cryogenic specimen transport container of claim 1, wherein: heat conduction device (4) include both ends connect shell (401) of being connected with first heat transfer board (6), second heat transfer board (7) respectively, the one end that is close to second heat transfer board (7) in connecting shell (401) is equipped with first heat conduction piece (402), first heat conduction piece (402) run through second heat transfer board (7) and respectively with connect shell (401), second heat transfer board (7) sliding connection, the one end that first heat conduction piece (402) are located connecting shell (401) is connected with first spring (403), the first spring (403) other end and fixed block (404) fixed connection, be equipped with second heat conduction piece (408) in first heat transfer board (6) connecting shell (401).

3. The cryogenic specimen transport container of claim 2, wherein: and a third heat-conducting block (4071) which is spatially crossed with the fixed block (404) is arranged on the right side of the second heat-conducting block (408).

4. The cryogenic specimen transport container of claim 2, wherein: the connecting shell (401) is provided with a sliding block (405) which penetrates through the connecting shell (401) and is in sliding connection with the connecting shell, one end of the sliding block (405) located in the connecting shell (401) is fixedly connected with a clamping block (406), a second spring (407) is connected between the top end of the clamping block (406) and the fixing block (404), and the end of the clamping block (406) is respectively abutted to the first heat-conducting block (402) and the second heat-conducting block (408).

5. The cryogenic specimen transport container of claim 4, wherein: the first heat exchange plate (6), the second heat exchange plate (7), the first heat conduction block (402), the second heat conduction block (408) and the third heat conduction block (4071) are all made of heat conduction materials, and the connecting shell (401), the fixing block (404) and the sliding block (405) are made of heat insulation materials respectively.

6. The cryogenic specimen transport container of claim 2, wherein: interior heat preservation shell (102) top is equipped with and connects recess (1021) of shell (401) outside joint, outer heat preservation shell (101) top is equipped with recess (1021) with relief valve (5) outside joint.

7. The cryogenic specimen transport container of claim 2, wherein: the right end of the first spring (403) is fixedly connected with an adjusting bolt (4021) penetrating through the first heat-conducting block (402), the left end of the first spring (403) is rotatably connected with the fixed block (404), and the adjusting bolt (4021) is in threaded connection with the first heat-conducting block (402).

8. The cryogenic specimen transport container of claim 2, wherein: and liquid nitrogen, dry ice or a mixture of the liquid nitrogen and the dry ice is filled in the liquid storage cylinder (2).