CN209117463U - A kind of biological sample refrigerating plant - Google Patents

Abstract

The utility model discloses a kind of biological sample refrigerating plants, belong to biological sample preservation technology field.A kind of biological sample refrigerating plant, comprising: box body, box cover and shadoof；The bottom of box body is equipped with liquid flow hole, and box body is detachably connected with box cover；Box cover is equipped with hollow fixed body, and the side of fixed body is equipped with the putting hole for being connected to its inner cavity, and the top of fixed body is equipped with the limiting slot for being connected to its inner cavity, and limiting slot is connected to putting hole；One end of shadoof is equipped with fixture block, and fixture block is placed in the inside of fixed body from the inner cavity that putting hole enters fixed body, and shadoof is pierced by from limiting slot.The utility model increases the distance between operator and liquid nitrogen using shadoof, avoids operator because liquid nitrogen splashes or the article temperature of contact is too low and frost bitten.

Description

A kind of biological sample refrigerating plant

Technical field

The utility model relates to biological sample preservation technology fields, and in particular to a kind of biological sample refrigerating plant.

Background technique

In biological sample preservation field, -80 DEG C are temperature safer below water crystallization temperature, can be protected with mid-term Large biological molecule stability in tissue is held, it is short-term to keep cell activity and tissue microstructure.Therefore, laboratory is commonly using super The preservation of low temperature refrigerator progress material.However, without liquid nitrogen or the fast freezing of other means, directly by fresh animals and plants material Material is put into ultra low temperature freezer, and due to its feature of freezing, chilling rate ability is limited, drops to ultralow temperature from room temperature in material, needs Process it is slow, the moisture in biological cell will cause cell wall rupture etc. to make knot of tissue in slow refrigerating process because of expansion Structure damage, surface moisture evaporates during the decline of temperature long period and dehydrates sample, to destroy sample sheet Body.So reducing the dehydration for being frozen sample and drying loss loss in order to reduce the damage of fresh cells structure, liquid being commonly used Nitrogen rapid cooling.

Tradition is usually that hand-held tweezers clamp sample sack using the method that liquid nitrogen carries out biological sample refrigeration, and sample is put into It fills and freezes rapidly in the box of liquid nitrogen, then press from both sides out sample sack rapidly respectively and be put into a big sealed bag and keep, then Be put into -80 DEG C of ultra low temperature freezer rapidly, in the process, sample sack be put into liquid nitrogen, sample sack may slide and Cause liquid nitrogen to splash, operator is easy by Cryogenic burns, when clamp sample sack from liquid nitrogen using tweezers, operator also it is easy by The temperature frost bitten of tweezers transmitting.

Utility model content

The purpose of this utility model is to provide a kind of biological sample refrigerating plants, to solve existing use liquid nitrogen to biology Sample freeze when, be easy frostbite operator the problem of.

The technical solution that the utility model solves above-mentioned technical problem is as follows:

A kind of biological sample refrigerating plant, comprising: box body, box cover and shadoof；The bottom of box body is equipped with liquid flow hole, box body It is detachably connected with box cover；The middle part of box cover is equipped with hollow fixed body, and the side of fixed body is equipped with the placement for being connected to its inner cavity Hole, the top of fixed body are equipped with the limiting slot for being connected to its inner cavity, and limiting slot is connected to putting hole；One end of shadoof is equipped with fixture block, Fixture block is placed in the inside of fixed body, and putting hole, which has, accommodates the size that fixture block passes through, and shadoof is pierced by from limiting slot.

The box body of the utility model is for holding sample sack, and the shadoof on box cover is for box body to be put into liquid nitrogen, liquid nitrogen Enter tray interior from the liquid flow hole of box body bottom, so that box body is put into liquid nitrogen using shadoof and be increased by sample sack rapid cooling Add operator at a distance from liquid nitrogen, has prevented by liquid nitrogen frostbite.It is convenient for group between the fixed body on fixture block and box cover on shadoof Dress, disassembly, and in assembling, disassembly, touching box body is not needed, is avoided by low temperature box body frostbite.Due to fixture block and fixed body Between dismounting speed it is fast, box body can quickly be put into low temperature refrigerator and refrigerate, box body is set after taking out in liquid nitrogen by box body It is shorter in the extraneous time, and sample sack is placed in box body always, is carried out freezing as a whole with box body, also be can be shortened The temperature rise of preservation operating time, box body are smaller, will not lead to specimen breakdown since difference variation is excessive.

Assembly and disassembly between fixture block and fixed body: fixture block is simultaneously put into fixed body by hand-held shadoof from putting hole Portion, then rotating shadoof enters shadoof in limiting slot, can be realized and is assembled between fixture block and fixed body with snap fit；It is dismantling When, reverse above-mentioned steps of implementing can be disassembled.During assembly and disassembly, without hand-held box body or box cover etc., put Operator is set by Cryogenic burns.

Further, the inner cavity of above-mentioned fixed body is spherical in shape；The section of putting hole is circle；Fixture block is spherical in shape.

The fixation intracoelomic cavity of the utility model be spherical, putting hole section be it is round, fixture block is also spherical, spherical fixture block Be easy from putting hole be put into fixed body without card resistance, it is stuck phenomena such as.

Further, the top of above-mentioned fixed intracoelomic cavity is higher than the top of putting hole.

After the spherical fixture block of the utility model enters fixed intracoelomic cavity, since the top of fixed intracoelomic cavity is higher than putting hole Top, when being mentioned box body upwards with shadoof, spherical fixture block can be stuck in the top of fixed intracoelomic cavity, in mobile box body, box Body is not fallen off.

Further, above-mentioned fixed body is equipped with hanging ring.

After the completion of sample sack freezing, shadoof is taken out from box body, box body is retell and is put into low temperature refrigerator as a whole, The hanging ring of the utility model is for moving box entirety.Since operator is in hand-held box body, anti-liquid nitrogen gloves, object of taking can be worn Product are not convenient, can tightly hold box without falling using hanging ring.

Further, the inside of above-mentioned box body is equipped with multiple partitions, and the inner cavity of box body is separated into multiple accommodating chambers by partition, The bottom of each accommodating chamber is equipped with liquid flow hole.

The inside of box body is split by the utility model, to classify various samples, is freezed to various samples When preservation, does not need to distinguish and separate preservation again after the freezing, saved the processing time.

Further, the outside of above-mentioned shadoof is equipped with anti-skid plastic, and shadoof is equipped with hook far from one end of fixture block.

The skidding when anti-skid plastic of the utility model can prevent operator from holding shadoof, and the temperature of plastic cement material passes It passs relatively slowly, temperature will not be too low.Hook keeps box body in place for box body to be suspended in liquid nitrogen.

Further, above-mentioned box body is connect by screw thread with box cover.

The utility model has the following beneficial effects:

(1) the utility model increases the distance between operator and liquid nitrogen using shadoof, avoids operator because of liquid Nitrogen splash or contact article temperature is too low and frost bitten.

(2) it is easy demolition, installation between the shadoof of the utility model and box entirety, reduces operating time, sample sack freezing Temperature rise is unobvious afterwards, avoids the damage of sample.

(3) box body of the utility model can the biological sample to multiple types carry out classification freezing, refrigeration, saved point Class handles the time；Each biological sample can individually contact liquid nitrogen, reduce the temperature fall time of biological sample.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the biological sample refrigerating plant of the utility model；

Fig. 2 is the structural schematic diagram of the box body of the utility model；

Fig. 3 is the structural schematic diagram of the fixed body of the utility model；

Fig. 4 is the structural schematic diagram of the shadoof of the utility model；

Fig. 5 is the fixed body of the utility model and the attachment structure schematic diagram of shadoof；

Fig. 6 is the fixed body of the utility model and another attachment structure schematic diagram of shadoof.

In figure: 10- box body；11- liquid flow hole；12- partition；13- accommodating chamber；20- box cover；21- fixed body；22- Putting hole；23- limiting slot；24- hanging ring；30- shadoof；31- fixture block；32- anti-skid plastic；33- hook.

Specific embodiment

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.

Embodiment

Please refer to Fig. 1, a kind of biological sample refrigerating plant, comprising: box body 10, box cover 20 and shadoof 30.Box cover 20 is logical It crosses and is screwed on box body 10, form box entirety, the outer middle side part of box cover 20 is equipped with fixed body 21.Shadoof 30 is in vertical Position, and connect with fixed body 21.

Referring to figure 2., box body 10 is cylindrical, and middle part is divided into multiple accommodating chambers 13, each receiving by partition 12 The bottom of chamber 13 is equipped with the liquid flow hole 11 for liquid nitrogen flow.

Referring to figure 3. to Fig. 5,21 inner hollow of fixed body, and its inner cavity is spherical in shape.The side of fixed body 21 is equipped with circle The putting hole 22 of shape, putting hole 22 is connected to the inner cavity of fixed body 21 and the top of putting hole 22 is lower than 21 inner cavity of fixed body Top.The top of fixed body 21 is equipped with bar limit slot 23, and limiting slot 23 connects with the inner cavity of fixed body 21 and putting hole 22 respectively It is logical, and one end of limiting slot 23 extends to the side that fixed body 21 is equipped with putting hole 22.Extension hanging ring is additionally provided on fixed body 21 24, hanging ring 24 can rotate on fixed body 21.

One end of shadoof 30 is equipped with spherical fixture block 31, and the other end is equipped with hook 33, and the middle part of shadoof 30 is equipped with anti-skid plastic 32, anti-skid plastic 32 is close to the one end for being equipped with hook 33.The diameter of spherical fixture block 31 is less than 22 section circular diameter of putting hole, spherical The diameter of fixture block 31 is also less than the diameter of 21 spherical inner chamber of fixed body.Shadoof 30 can be stuck in limiting slot 23.

In the other embodiments of the utility model, the shape of fixture block 31 can also be square or irregular cube etc. Shape, the cavity shape size of fixed body 21 are not in card resistance or stuck are can allow the smooth rotation of fixture block 31 or movement Standard, the size of putting hole 22, which is subject to, can allow fixture block 31 can smoothly enter into.Obviously, it when the inner cavity of fixed body 21 is spherical in shape, places Hole 22 is that spherical inner chamber is truncated the aperture to be formed (referring to Fig. 6).

The assembling of fixture block 31 and fixed body 21, disassembly process: spherical fixture block 31 is put by hand-held shadoof 30 from putting hole 22 Into the inner cavity of fixed body 21, then shadoof 30 is rotated, enter shadoof 30 in limiting slot 23 and keeps shadoof 30 in a vertical position, Shadoof 30 is mentioned upwards finally, so that spherical fixture block 31 is stuck in the inner cavity top (referring to Fig. 5) of fixed body 21, realizes shadoof 30 and box The connection of lid 20.When fixture block 31 and fixed body 21 are dismantled, above-mentioned steps are inversely carried out, fixture block 31 and fixed body 21 can be realized The separation of shadoof 30 and box cover 20 is realized in disassembly.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (7)

1. a kind of biological sample refrigerating plant characterized by comprising box body (10), box cover (20) and shadoof (30)；It is described The bottom of box body (10) is equipped with liquid flow hole (11), and the box body (10) is detachably connected with the box cover (20)；The box cover (20) middle part is equipped with hollow fixed body (21), and the side of the fixed body (21) is equipped with the putting hole for being connected to its inner cavity (22), the top of the fixed body (21) is equipped with the limiting slot (23) for being connected to its inner cavity, the limiting slot (23) and putting hole (22) it is connected to；One end of the shadoof (30) is equipped with fixture block (31), and the fixture block (31) is placed in the inside of fixed body (21), described Putting hole (22), which has, accommodates the size that the fixture block (31) passes through, and the shadoof (30) is pierced by from the limiting slot (23).

2. biological sample refrigerating plant according to claim 1, which is characterized in that the inner cavity of the fixed body (21) is in ball Shape；The section of the putting hole (22) is circle；The fixture block (31) is spherical in shape.

3. biological sample refrigerating plant according to claim 2, which is characterized in that the top of fixed body (21) inner cavity Higher than the top of the putting hole (22).

4. biological sample refrigerating plant according to claim 3, which is characterized in that the fixed body (21) is equipped with hanging ring (24)。

5. biological sample refrigerating plant according to claim 1, which is characterized in that the inside of box body (10) be equipped with it is multiple every The inner cavity of the box body (10) is separated into multiple accommodating chambers (13) by plate (12), the partition (12), each accommodating chamber (13) Bottom be equipped with the liquid flow hole (11).

6. biological sample refrigerating plant according to claim 1, which is characterized in that the outside of the shadoof (30) is equipped with anti- Sliding plastic cement (32), the shadoof (30) are equipped with hook (33) far from the one end of fixture block (31).

7. biological sample refrigerating plant according to any one of claims 1 to 6, which is characterized in that the box body (10) is logical Screw thread is crossed to connect with the box cover (20).