CN212459118U

CN212459118U - Sample liquid nitrogen quick-freezing auxiliary device

Info

Publication number: CN212459118U
Application number: CN202021190140.7U
Authority: CN
Inventors: 侯豫宁; 杨玲; 王涛; 胡海涛; 张维林; 王长春
Original assignee: Zhejiang Normal University CJNU
Current assignee: Zhejiang Normal University CJNU
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-02
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a sample liquid nitrogen quick freezing auxiliary device, which comprises a box body and a telescopic rod body fixedly connected with the box body; the inside of box is equipped with the baffle that divide into a plurality of independent spaces with the box, and the bottom of the box that each independent space below corresponds is equipped with a plurality of through-going holes, and the upper portion of box is equipped with the case lid. The utility model discloses can separate each sample and carry out the liquid nitrogen quick-freeze in a plurality of independent spaces, make independent quick-freeze mutual not adhesion between each sample, influence and pollution between the sample can effectively be avoided on the one hand, on the other hand is rational in infrastructure, can once only quick-freeze a plurality of samples, effectively shorten the quick-freeze time, reduce the liquid nitrogen loss, further still can be according to the depth height-adjusting that uses the scene if hold the liquid nitrogen container, the simple operation, the ease for use is high, can extensively be for popularization and application.

Description

Sample liquid nitrogen quick-freezing auxiliary device

Technical Field

The utility model belongs to the quick-freezing plant field, concretely relates to sample quick-freeze auxiliary device.

Background

The pericarp of the fleshy fruit is fleshy, and the cells of part of the pericarp are separated into juice, so that the fleshy fruit samples are adhered to each other in the liquid nitrogen quick-freezing process.

At present, the method for quickly freezing the fleshy fruits by using liquid nitrogen is various, such as:

1. the whole fleshy fruit is directly immersed in liquid nitrogen for quick freezing, but the method is high in speed, but the whole quick-frozen fleshy fruit is difficult to separate for other experiments in subsequent experiments.

2. The fleshy fruit is cut into small pieces and placed into tin foil paper or other containers, and because the fleshy fruit contains a large amount of juice, when a wrapped sample is placed into liquid nitrogen, the cut fruits can be adhered together and sometimes can be adhered to the article wrapping the fruit, so that subsequent experiments can be influenced.

3. The method is low in speed, liquid nitrogen can be wasted, and the fleshy fruit sample cannot be adhered to other objects after being frozen by the liquid nitrogen completely, but can float to cause sample confusion.

The above problems are urgently needed to be solved.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a sample liquid nitrogen quick-freeze auxiliary device to solve the problem that exists among the prior art.

The technical scheme is as follows: in order to solve the technical problem, the utility model provides a sample liquid nitrogen quick-freezing auxiliary device, which comprises a box body and a telescopic rod body fixedly connected with the box body;

the inside of box is equipped with the baffle that divide into a plurality of independent spaces with the box, and the bottom of the box that each independent space below corresponds is equipped with a plurality of through-going holes, and the upper portion of box is equipped with the case lid.

Preferably, the partition board is perpendicular to the bottom of the box body and the box cover.

Preferably, the partition plates comprise transverse partition plates and longitudinal partition plates perpendicular to the transverse partition plates; the transverse partition plate and/or the longitudinal partition plate are/is detachable.

Preferably, the box body is a cuboid; the ratio of the length, the width and the height of the box body is 3:2: 1; the height of the partition board is consistent with that of the box body.

As one of the preferable schemes, the telescopic rod body comprises an inner rod body and an outer tube body sleeved outside the inner rod body; the outer wall of the inner rod body is provided with a first external thread, and the inner wall of the outer rod body is provided with a first internal thread matched with the first external thread.

As another preferred scheme, the telescopic rod body comprises an outer pipe body and an inner rod body which can move up and down in the outer pipe body.

Further preferably, the telescopic rod body further comprises a rotary clamping device;

the rotary clamping device comprises a fixed sleeve fixedly sleeved at the lower end of the outer pipe body and a conical fastening sleeve sleeved outside the inner rod body;

the lower part of the fixed sleeve extends downwards to be provided with a plurality of elastic clamping pieces;

the inner wall of the conical adapter sleeve is provided with a second internal thread; and second external threads matched with the second internal threads are arranged on the outer wall of each elastic clamping piece.

Preferably, the elastic clamping pieces are circumferentially and uniformly distributed at the lower end part of the fixed sleeve; the elastic clamping piece comprises a root part fixedly connected with the fixing sleeve and an extension part extending downwards along the axial direction of the fixing sleeve.

Preferably, one end of the inner rod body is positioned in the inner cavity of the outer tube body, and each elastic clamping piece surrounds the rod body of the inner rod body. Preferably, a certain gap is reserved between each elastic clamping piece and the rod body of the inner rod body.

Preferably, one end of the inner rod body is positioned in the inner cavity of the outer tube body, and the rod body of the inner rod body is positioned in a non-closed cavity formed by enclosing a plurality of spiral elastic clamping pieces.

Preferably, one end of the inner rod body penetrates through a non-closed cavity formed by enclosing a plurality of spiral elastic clamping pieces and extends into the inner cavity of the outer tube body, and the other end of the inner rod body is fixedly connected with the box body.

Preferably, a clamping cap is arranged at one end of the inner rod body, which is positioned in the outer tube body; and a limiting step is arranged inside the fixed sleeve.

Preferably, a fixing column is fixedly arranged on one side of the box body; the lower end of the telescopic rod body is fixedly inserted into the fixing column.

Preferably, the upper part of the telescopic rod body is provided with a handle.

Preferably, the tail end of the handle is hook-shaped.

Has the advantages that: the utility model provides a sample liquid nitrogen quick-freeze auxiliary device, can separate each sample like the meat fruit sample of cutting and carry out the liquid nitrogen quick-freeze in a plurality of independent spaces also are solitary little check, make between each sample like each meat fruit sample independent quick-freeze not adhesion each other, influence and pollution between the sample can effectively be avoided on the one hand, on the other hand is rational in infrastructure, can once only quick-freeze a plurality of samples, effectively shorten the quick-freeze time, reduce the liquid nitrogen loss, further still can be according to the application scene like the depth height-adjusting that holds the liquid nitrogen container, the simple operation, the ease for use is high, can be extensively for popularization and application.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary device for liquid nitrogen quick freezing of a sample provided by an embodiment;

FIG. 2 is a schematic top view of the box and the internal partitions of the box in FIG. 1;

FIG. 3 is a schematic view of the telescopic rod of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the tapered adapter sleeve of FIG. 3.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 and fig. 2, the sample liquid nitrogen quick-freezing auxiliary device provided by this embodiment includes a box 5 and a retractable rod fixedly connected to the box 5. As shown in fig. 2, a partition 7 dividing the box body into a plurality of independent spaces is provided in the box body 5, and a plurality of through holes 8 are provided at the bottom of the box body 5 corresponding to the lower part of each independent space. As shown in fig. 1, a cover 4 is disposed on the upper portion of the box 5, and a handle is disposed on the cover 4. It can also be said that: the bottom of the box body 5 is provided with a plurality of through holes 8, and the inner cavity of the box body is divided into a plurality of independent spaces by a plurality of partition plates 7, the bottom of the box body and the box cover. With the structure and the structure, the box cover 4 can effectively prevent the sample from floating out of the box body; the problems of confusion, influence, pollution and the like among samples can be effectively avoided by each independent space; and the height of the auxiliary device can be flexibly adjusted through the telescopic rod body according to the change of an application scene, such as the depth of a liquid nitrogen container.

In this embodiment, the partition 7 is perpendicular to the bottom of the box 5 and the box cover 4.

As shown in fig. 2, the partitions include a diaphragm and a vertical partition perpendicular to the diaphragm.

In this embodiment, the longitudinal partition plate is a detachable partition plate, and the transverse partition plate may be a fixed partition plate. In some embodiments, the transverse partition is a detachable partition, and the longitudinal partition is a fixed partition. In some embodiments, the longitudinal partition plate and the longitudinal partition plate are detachable.

In the embodiment, the box body 5 is a cuboid, and the ratio of the length, the width and the height of the box body 5 is 3:2: 1; the height of each partition is consistent with that of the box body 5. In this embodiment, the length of the box body is 15cm, the width is 10cm, the height is 5cm, and the heights of the longitudinal partition boards and the transverse partition boards are 5 cm. The diameter of each of the plurality of through holes 8 in the bottom of the box body 5 is about 1 cm. The sample liquid nitrogen quick-freezing auxiliary device provided in the embodiment is characterized in that 4 transverse partition plates and 4 longitudinal partition plates are arranged in a box body, and the inner cavity of the box body is divided into 25 independent spaces with the length of about 3cm and the width of about 2cm by the longitudinal partition plates and the transverse partition plates. Of course, in practical application, the size of the box body, the number of the partition plates in the box body and the size and the number of the independent spaces formed by division can be flexibly adjusted according to requirements; the independent spaces may have the same size or different sizes, i.e., partially the same size and partially different size.

In some embodiments, the telescopic rod body comprises an inner rod body and an outer rod body sleeved outside the inner rod body; the outer wall of the inner rod body is provided with a first external thread, and the inner wall of the outer rod body is provided with a first internal thread matched with the first external thread. Under the structure, the relative distance between the outer pipe body and the inner rod body can be adjusted by screwing the outer pipe body or the inner rod body, so that the length adjustment of the telescopic rod body is realized, and the telescopic rod body is suitable for different application scenes.

In the present embodiment, as shown in fig. 1 and 3, the telescopic rod body comprises an outer tube body 2, an inner rod body 3 capable of moving up and down in the outer tube body 2, and a rotary clamping device 9 for fixing the outer tube body and the inner rod body.

Specifically, as shown in fig. 1, 3 and 4, the rotary clamping device 9 includes a fixed sleeve 11 fixedly sleeved on the lower end of the outer tube 2, and a conical adapter sleeve 13 sleeved on the outer side of the inner tube 3; a plurality of elastic clamping pieces 12 extend downwards from the lower part of the fixed sleeve 11; the inner wall of the conical adapter sleeve 13 is provided with a second internal thread; the outer wall of each elastic clamping piece 12 is provided with a second external thread matched with the second internal thread. In this embodiment, one end of the inner rod 3 is located in the inner cavity of the outer rod 2, each elastic clip 12 is enclosed outside the rod body of the inner rod 3, and a certain gap is left between each elastic clip and the rod body of the inner rod. It can also be said that: one end of the inner rod body 3 is positioned in the inner cavity of the outer tube body 2, and the rod body of the inner rod body 3 is positioned in a non-closed cavity formed by enclosing a plurality of spiral elastic clamping pieces 12. That is, one end (also called as the upper end) of the inner rod body 3 passes through the non-closed cavity formed by the plurality of spiral elastic clamping pieces 12 and extends into the inner cavity of the outer tube body 2. The other end (also called as the lower end) of the inner rod body 3 is fixedly connected with the box body 5. Under the structure and the structure, after the required relative positions of the inner rod body 3 and the outer tube body 2 are adjusted, the conical adapter sleeve 13 is screwed upwards, in the process that the second internal threads arranged on the inner wall of the conical adapter sleeve 13 are gradually screwed with the second external threads arranged on the outer wall of each elastic clamping piece 12, the lower end of each elastic clamping piece 12 shrinks inwards under the action of pressure to gradually cling to/clamp the inner rod body 3, so that the inner rod body 3 is fixed at the relative position of the outer tube body 2, and the fixing effect of the telescopic rod after the length adjustment is achieved.

As shown in fig. 3, in this embodiment, the elastic clips 12 are uniformly distributed at the lower end of the fixing sleeve 11 in the circumferential direction. Each elastic clip includes a root portion fixedly connected to the fixing sleeve, and an extension portion extending downward in the axial direction of the fixing sleeve 11. Gaps are arranged between the adjacent elastic clamping pieces.

In this embodiment, the tapered adapter sleeve 13 is in the shape of an inverted cone, and the cavity with the second internal threads is also in the shape of an inverted cone. The inner diameter of the upper part of the inner cavity of the conical adapter sleeve is larger than the outer diameter formed by enclosing the plurality of spiral elastic clamping pieces 12 without the action of external force; the inner diameter of the lower part of the inner cavity of the conical adapter sleeve is slightly smaller than the outer diameter of the enclosed spiral elastic clamping pieces 12 without external force. The inner diameter of the lower part of the inner cavity of the conical adapter sleeve is equal to or slightly larger than the outer diameter of the inner rod body 3. When no external force is applied, the diameter of the inner diameter formed by enclosing the plurality of spiral elastic clamping pieces 12 is slightly larger than the diameter of the outer diameter of the inner rod body 3.

Meanwhile, a clamping cap 10 is arranged at one end (also called as the upper end) of the inner rod body 3 positioned inside the outer tube body 2; correspondingly, the inside of the fixed sleeve 11 is provided with a limit step (not shown in the figure). Under this structure and structure, when interior pole body 3 slides down to certain stroke distance relative outer body 2, the card cap 10 of interior pole body 3 upper end is blocked by the inside spacing step of fixed sleeve 11 to make outer body 2 can not follow and slide out the disjointing in interior pole body 3.

In this embodiment, the outer diameter of the locking cap 10 is larger than the inner diameter of the limit step (i.e., the diameter of the inner ring of the limit step).

In this embodiment, as shown in fig. 1, a fixing column 6 is fixedly arranged on one side of the box body 5; the lower end of the telescopic rod body is fixedly inserted into the fixed column 6, and the telescopic rod body is fixedly connected with the box body 5 through the fixed column 6. In this embodiment, the other end (also referred to as a lower end) of the inner rod 3, which is a telescopic rod, is fixedly inserted into the fixing column 6.

In this embodiment, the upper portion of the telescopic rod body is provided with a handle 1, and the tail end of the handle 1 is hook-shaped. With the structure, the auxiliary device can be conveniently hung on the edge of a certain container wall, and the auxiliary device has better usability.

In this embodiment, the axial direction of the handle 1 is perpendicular to the axial direction of the telescopic rod body.

Taking the sample liquid nitrogen quick-freezing auxiliary device provided by the embodiment as an example, the working process of the device for liquid nitrogen quick-freezing of the fleshy fruit sample is explained as follows: putting the fleshy fruit samples cut together into a plurality of independent spaces in a box body 5 by using tweezers, covering a box cover 4 to prevent the samples from floating out of the box body, then putting the auxiliary device into liquid nitrogen, taking the auxiliary device out of the liquid nitrogen after the samples are frozen as long as required (at the moment, the samples are mostly in a floating state in the independent spaces), opening the box cover 5 (after the samples are taken out of the liquid nitrogen, the samples are settled at the bottoms of the independent spaces), and taking out the frozen samples by using the tweezers, for example, putting the samples into numbered sample bags. When more samples are available, the sample bag containing the samples can be placed in liquid nitrogen to be frozen and then placed in a refrigerator after being frozen, and when less samples are available, the sample bag can be directly and quickly placed in the refrigerator. During the specific use, when needs adjust the telescopic link according to the depth that uses the scene like holding the liquid nitrogen container, earlier with toper adapter sleeve 13 the pine, the telescopic link length is adjusted to outer body 2 of relative pull or interior body 3, after the required relative position of the body 3 of pole and outer body 2 in the adjustment, upwards screws toper adapter sleeve 13 to this relative position at outer body 2 is fixed to the body 3 in will, thereby accomplish the nimble adjustment of telescopic link length. Meanwhile, the tail part of the handle 1 is in a hook shape, so that the auxiliary device can be conveniently hung on the edge of a certain container wall (such as the container wall of a container for containing liquid nitrogen) when the auxiliary device is used.

The above embodiment is right the utility model discloses do not constitute and prescribe a limit to, the utility model provides a sample liquid nitrogen quick-freeze auxiliary device not only can be used to the liquid nitrogen freezing of meat fruit sample, does and is applied to other sample freezing, and relevant staff is not skew the utility model discloses in the within range of technical thought, the various changes and the modification of going on all fall on the utility model discloses a within the protection scope.

Claims

1. The utility model provides a sample liquid nitrogen quick-freeze auxiliary device which characterized in that: comprises a box body (5) and a telescopic rod body fixedly connected with the box body (5);

the inside of box (5) is equipped with and divides into baffle (7) in a plurality of independent spaces with the box, and the bottom of box (5) that each independent space below corresponds is equipped with a plurality of through-penetration holes (8), and the upper portion of box (5) is equipped with case lid (4).

2. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: the partition plate (7) is perpendicular to the bottom of the box body (5) and the box cover (4).

3. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: the partition plates comprise transverse partition plates and longitudinal partition plates perpendicular to the transverse partition plates; the transverse partition plate and/or the longitudinal partition plate are/is detachable.

4. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: the box body (5) is a cuboid; the ratio of the length, the width and the height of the box body (5) is 3:2: 1; the height of the partition board is consistent with that of the box body (5).

5. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: the telescopic rod body comprises an inner rod body (3) and an outer tube body (2) sleeved outside the inner rod body (3); the outer wall of the inner rod body (3) is provided with a first external thread, and the inner wall of the outer tube body (2) is provided with a first internal thread matched with the first external thread.

6. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: the telescopic rod body comprises an outer pipe body (2) and an inner rod body (3) which can move up and down in the outer pipe body (2).

7. The auxiliary device for sample liquid nitrogen quick freezing of claim 6, characterized in that: the telescopic rod body further comprises a rotary clamping device (9);

the rotary clamping device (9) comprises a fixed sleeve (11) fixedly sleeved at the lower end of the outer pipe body (2) and a conical fastening sleeve (13) sleeved outside the inner rod body (3);

the lower part of the fixed sleeve (11) extends downwards to be provided with a plurality of elastic clamping pieces (12);

the inner wall of the conical adapter sleeve (13) is provided with a second internal thread; the outer wall of each elastic clamping piece (12) is provided with a second external thread matched with the second internal thread.

8. The auxiliary device for sample liquid nitrogen quick freezing of claim 7, is characterized in that: the elastic clamping pieces (12) are circumferentially and uniformly distributed at the lower end part of the fixed sleeve (11); the elastic clamping piece comprises a root part fixedly connected with the fixing sleeve and an extension part extending downwards along the axial direction of the fixing sleeve (11).

9. The auxiliary device for sample liquid nitrogen quick freezing of claim 7, is characterized in that: a clamping cap (10) is arranged at one end of the inner rod body (3) positioned in the outer tube body (2); and a limiting step is arranged inside the fixed sleeve (11).

10. The auxiliary device for sample liquid nitrogen quick freezing of claim 1, characterized in that: a fixing column (6) is fixedly arranged on one side of the box body (5); the lower end of the telescopic rod body is fixedly inserted into the fixed column (6); the upper part of the telescopic rod body is provided with a handle (1); the tail end of the handle (1) is hook-shaped.