Novel liquid nitrogen box

Abstract

The novel liquid nitrogen box comprises a box body, the upper end of the box body is of an opening structure, a box cover is arranged at the upper end of the box body, the box cover is connected with the box body through a buckle, the upper ends of the side walls of the front end and the rear end of the box body are each provided with three support containing grooves, each support containing groove is of an arc-shaped structure, and three supports are arranged in the box body. The supports are distributed at equal intervals, arc-shaped clamping rods are fixedly arranged above the supports, one ends of the arc-shaped clamping rods extend out of the box body through the support containing grooves, the upper ends of the arc-shaped clamping rods make contact with the box cover, a supporting plate is fixedly arranged below the position between the supports, and a plurality of fumigation holes are formed in the supporting plate. The support is fixedly provided with two placing plates above the supporting plate, the placing plates are distributed at equal intervals, and the structure solves the problems that the test tube support is easy to shake and the introduction amount of liquid nitrogen is difficult to grasp.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen box technical field, concretely is a novel liquid nitrogen box. BACKGROUND

[0002] Liquid nitrogen box, as a kind of container specially designed for storing liquid nitrogen, plays an important role in biomedical, physical science research, chemical experiment, material research, food industry and aerospace etc. multiple fields, liquid nitrogen box is usually made of imported high-strength polycarbonate material, liquid nitrogen can be stored in liquid nitrogen box, temperature is kept below-196 DEG C, wherein, the freezing preservation of gamete and embryo is an indispensable part in human assisted reproductive technology. At present, the freezing preservation technology of sperm, ovum and embryo at different periods has matured, vitrification freezing and thawing has become one of the very important work in embryo laboratory, when carrying out vitrification freezing operation, liquid nitrogen box is needed to cooperate with use.

[0003] For example, the Chinese patent "a liquid nitrogen transfer box" with announcement number CN218073243U, including transfer box box body, transfer box box cover, buckle, hinge, cryopreservation tube storage tank, small hole, groove, liquid nitrogen storage tank, first liquid nitrogen inlet, second liquid nitrogen inlet, the transfer box box body upper side is connected through hinge transfer box box cover, the side away from hinge of transfer box box cover is provided with buckle, the inside center of transfer box box cover is provided with a plurality of grooves, the inside center of transfer box box body is provided with cryopreservation tube storage tank, a plurality of small holes are provided in cryopreservation tube storage tank, the inside perimeter of cryopreservation tube storage tank is provided with liquid nitrogen storage tank, the upper surface left side of transfer box box body is provided with first liquid nitrogen inlet and second liquid nitrogen inlet respectively, the first liquid nitrogen inlet and second liquid nitrogen inlet are located cryopreservation tube storage tank left side, the position of small hole and groove is one-to-one correspondence, the first liquid nitrogen inlet and second liquid nitrogen inlet are parallelly arranged on the upper surface of transfer box box body, and the first liquid nitrogen inlet is located the upper end of second liquid nitrogen inlet, the first liquid nitrogen inlet and second liquid nitrogen inlet are communicated with liquid nitrogen storage tank below, the bottom wall and side wall of transfer box box body are thick temperature insulation plastics, the upper surface of transfer box box body is transparent plastic material, the transfer box box cover is transparent plastic material.

[0004] The above prior art can realize the use of liquid nitrogen box, but in actual use, on the one hand, the test tube support is easy to shake, and the liquid nitrogen box for freezing and transferring is mostly ordinary foam box, which causes the aluminum support containing gametes or embryos to be directly placed on the foam box for fumigation, thereby increasing the risk of shaking of the support, on the other hand, it is difficult to grasp the amount of liquid nitrogen poured, when the operator pours liquid nitrogen into the foam box, a large amount of white mist is raised, which hinders the vision, so that the operator can hardly accurately grasp the amount of liquid nitrogen poured, therefore, it does not meet the existing demand, for this, we propose a novel liquid nitrogen box. UTILITY MODEL CONTENT

[0005] The utility model discloses a novel liquid nitrogen box to solve the problem that the test tube support is easy to shake and the pouring amount of liquid nitrogen is difficult to grasp in the prior art.

[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a novel liquid nitrogen box, including the box body, the upper end of box body is the open structure, the upper end of box body is provided with the box cover, and the box cover is connected with the box body through the buckle, the lateral wall upper end of box body front and back end is provided with three support rests groove, and the support rests groove is the arc structure, the inside of box body is provided with three supports, and the support is equidistant distribution, the top of support is fixedly provided with the arc clamping rod, and one end of arc clamping rod extends to the outside of box body through the support rests groove, and the upper end of arc clamping rod is in contact with the box cover.

[0007] Preferably, a support plate is fixedly arranged below the supports, a plurality of fumigation holes are arranged in the support plate, two placement plates are fixedly arranged above the support plate, the placement plates are equidistantly distributed, three through holes are arranged in the placement plates, the through holes are equidistantly distributed, and the through holes are through holes.

[0008] Preferably, a 10 cm limiting line is arranged on each of the side walls of the box body, the 10 cm limiting line is lower than the height of the support plate, red paint is coated on the 10 cm limiting line, and a scale line is arranged on the side wall of the box body at the upper end of the 10 cm limiting line.

[0009] Preferably, an observation window is arranged in each of the interiors of the two sides of the box body, and the observation window corresponds to the position of the 10 cm limiting line.

[0010] Preferably, a threaded rod is fixedly arranged at each of the four corner positions of the lower end of the box body, a rubber pad is sleeved and arranged at the lower end of the outer portion of the threaded rod, and the rubber pad is connected with the threaded rod through threads.

[0011] Preferably, a handle is fixedly arranged at the upper end of the box cover, air holes are arranged on both sides of the handle at the front and rear ends of the box cover, the air holes are equidistantly distributed, and the air holes are through holes.

[0012] Preferably, a test tube is arranged in the through hole, and the lower end of the test tube extends to below the placement plate and is in contact with the upper end of the support plate through the through hole.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) The utility model discloses a support rest groove and arc clamping rod can be fixed on the box body when installing the support, the arc clamping rod of the front and rear end of the support is aligned with the opening of the support rest groove and the support is moved downwards, until the arc clamping rod of both ends of the support falls into the support rest groove, the support rest groove of arc structure can place and limit the arc clamping rod, reduce the rolling situation of the support, thereby reduce the risk of falling of the support, the equidistant distribution of the support rest groove can also be equidistant distribution of the multiple support placed, thereby avoid the fumigation effect of the uneven placement of the support and reduce the situation, when fumigation, the cover is placed on the box body, and the lower end of the cover is extruded and fixed to the arc clamping rod, thereby reduce the risk of the support and shake.

[0015] (2) The utility model discloses a 10cm limit line and scale line can observe the amount of liquid nitrogen pouring, when fumigation of test tube, the support and test tube have been placed in the box body, the operator pours liquid nitrogen into the box body along with the pouring of liquid nitrogen, and the liquid level of liquid nitrogen also rises, and a large amount of white fog is raised after liquid nitrogen enters the box body and hinders the field of vision, the 10cm limit line of the four surrounding eye-catching can help the operator to observe the pouring amount of liquid nitrogen, and the pouring rate of liquid nitrogen needs to be slowed down when the liquid level gradually approaches the 10cm limit line, until the liquid level of liquid nitrogen stays on the 10cm limit line, and the pouring condition of liquid nitrogen can also be observed through the observation window, thereby improving the freezing efficiency and ensuring the safety of gamete and embryo freezing in the embryo laboratory.

[0016] (3) The utility model discloses a threaded rod and rubber pad can make the box body place more stable, before liquid nitrogen pouring, first, the box body is placed on the desktop and is pressed to check whether the box body shakes, if the box body shakes, the operator rotates the rubber pad outside the threaded rod, and the rubber pad moves up and down outside the threaded rod through the screw thread inside, until the rubber pad is adjusted to the appropriate position, the operator presses the box body again, the box body is stably placed on the desktop now, and the subsequent operation is carried out, avoiding the shaking of the box body when pouring liquid nitrogen, thereby improving the stability of the box body placement. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the overall structure perspective drawing of the utility model;

[0018] Figure 2 It is the internal structure perspective drawing of the utility model;

[0019] Figure 3 It is the internal structure front view of the utility model;

[0020] Figure 4 It is the internal structure side view of the utility model.

[0021] In the figure: 1, box body; 2, box cover; 3, handle; 4, air hole; 5, observation window; 6, arc-shaped clamping rod; 7, support; 8, placing plate; 9, support plate; 10, through hole; 11, support shelf; 12, test tube; 13, fumigation hole; 14, 10cm limit line; 15, scale line; 16, threaded rod; 17, rubber pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-4 , the utility model provides an embodiment: a novel liquid nitrogen box, including box body 1, the upper end of box body 1 is open structure, the upper end of box body 1 is provided with box cover 2, box cover 2 is connected with box body 1 through buckle, the upper end of box cover 2 is fixedly provided with handle 3, box cover 2 is located at the both sides of handle 3 front and rear end and is provided with air hole 4, air hole 4 is equidistant distribution, and air hole 4 is through -type structure, the inside of through hole 10 is provided with test tube 12, the lower end of test tube 12 extends to the below of placing plate 8 through through hole 10 and is contacted with the upper end of support plate 9.

[0024] Please refer to Figure 1 , Figure 2 and Figure 4 , the upper end of the side wall of the front and rear end of box body 1 is provided with three support shelves 11, support shelf 11 is arc structure, the inside of box body 1 is provided with three supports 7, support 7 is equidistant distribution, the upper of support 7 is fixedly provided with arc-shaped clamping rod 6, one end of arc-shaped clamping rod 6 extends to the outside of box body 1 through support shelf 11, and the upper end of arc-shaped clamping rod 6 is contacted with box cover 2, the below between support 7 is fixedly provided with support plate 9, the inside of support plate 9 is provided with several fumigation holes 13, two placing plates 8 are fixedly provided between the above of support plate 9, and placing plate 8 is equidistant distribution, the inside of placing plate 8 is provided with three through holes 10, and through hole 10 is through -type structure, which is convenient for fixing support 7 through support shelf 11.

[0025] Please refer to Figure 2 and Figure 3 , the side wall of the periphery of box body 1 is provided with 10cm limit line 14, 10cm limit line 14 is lower than the height of support plate 9, and 10cm limit line 14 is coated with red paint, the side wall of box body 1 is provided with scale line 15 on the upper end of 10cm limit line 14, the inside of the both sides of box body 1 is provided with observation window 5, and observation window 5 corresponds with the position of 10cm limit line 14, which is convenient for observing the pouring amount of liquid nitrogen through 10cm limit line 14.

[0026] Please refer toFigure 3 and Figure 4 The threaded rod 16 is externally sleeved with a rubber pad 17 at the lower end, and the rubber pad 17 is connected with the threaded rod 16 through threads, so that the box body 1 is placed more stably through the rubber pad 17.

[0027] Working principle: when in use, the box body 1 is placed on the desktop and pressed to check whether the box body 1 shakes, if the box body 1 shakes, the operator rotates the rubber pad 17 outside the threaded rod 16, the rubber pad 17 moves up and down outside the threaded rod 16 through the internal threads, until the rubber pad 17 is adjusted to the appropriate position, the operator presses the box body 1 again, at this time the box body 1 is stably placed on the desktop, when the bracket 7 is installed, the arc-shaped clamping rod 6 at the front and rear ends of the bracket 7 is aligned with the opening of the bracket rest groove 11 and the bracket 7 is moved downward, until the arc-shaped clamping rod 6 at both ends of the bracket 7 falls into the bracket rest groove 11, at this time the arc-shaped bracket rest groove 11 can place and limit the arc-shaped clamping rod 6, as the liquid nitrogen is poured, the liquid level of the liquid nitrogen also rises, at the same time a large amount of white mist is raised after the liquid nitrogen enters the box body 1, at this time the 10cm limiting line 14 around the box body 1 can help the operator observe the pouring amount of the liquid nitrogen, when the liquid level gradually approaches the 10cm limiting line 14, the pouring rate of the liquid nitrogen needs to be slowed down, until the liquid level of the liquid nitrogen stays on the 10cm limiting line 14, at the same time the pouring situation of the liquid nitrogen can be observed through the observation window 5, when fumigation, the box cover 2 is placed on the box body 1, and the arc-shaped clamping rod 6 is fixed through the lower end of the box cover 2.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than by the above description, and all changes coming within the meaning and equivalency range of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

Claims

1. A novel liquid nitrogen box comprising a box body (1), the upper end of the box body (1) is an open structure, characterized in that: The upper end of the box body (1) is provided with a box cover (2), and the box cover (2) is connected with the box body (1) through buckling. The upper end of the side wall of the front and rear ends of the box body (1) is provided with three support rest grooves (11), which are arc-shaped structures. The inside of the box body (1) is provided with three supports (7), which are equidistantly distributed. The upper end of the support (7) is fixedly provided with an arc-shaped clamping rod (6). One end of the arc-shaped clamping rod (6) extends to the outside of the box body (1) through the support rest groove (11), and the upper end of the arc-shaped clamping rod (6) is in contact with the box cover (2).

2. A novel liquid nitrogen box according to claim 1, characterized in that: The lower end of the arc-shaped clamping rod (6) is in contact with the box cover (2). The lower end of the support (7) is fixedly provided with a support plate (9). The inside of the support plate (9) is provided with a plurality of fumigation holes (13). The upper end of the support plate (9) is fixedly provided with two placing plates (8) between the supports (7). The placing plates (8) are equidistantly distributed. The inside of the placing plate (8) is provided with three through holes (10) which are equidistantly distributed and are in a penetrating structure.

3. A novel liquid nitrogen box according to claim 2, characterized in that: The side wall of the box body (1) is provided with a 10cm limiting line (14) around. The height of the 10cm limiting line (14) is lower than that of the support plate (9), and the 10cm limiting line (14) is coated with red paint. The side wall of the box body (1) is provided with a scale line (15) above the 10cm limiting line (14).

4. The novel liquid nitrogen box according to claim 3, characterized in that: The inside of the box body (1) is provided with an observation window (5) on both sides. The observation window (5) corresponds to the position of the 10cm limiting line (14).

5. A novel liquid nitrogen box according to claim 4, characterized in that: The lower end of the box body (1) is fixedly provided with a threaded rod (16) at the four corner positions. The lower end of the threaded rod (16) is externally sleeved with a rubber pad (17), and the rubber pad (17) is connected with the threaded rod (16) through threads.

6. A novel liquid nitrogen box according to claim 5, characterized in that: The upper end of the box cover (2) is fixedly provided with a handle (3). The box cover (2) is provided with an air hole (4) on both sides of the front and rear ends of the handle (3). The air holes (4) are equidistantly distributed and are in a penetrating structure.

7. A novel liquid nitrogen box according to claim 6, characterized in that: The inside of the through hole (10) is provided with a test tube (12). The lower end of the test tube (12) extends to the lower end of the placing plate (8) through the through hole (10) and is in contact with the upper end of the support plate (9).

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