Drawing type biological cryopreservation box

Abstract

The utility model discloses a drawing type biological cryopreservation box which comprises an outer box of a hollow structure and an inner box installed in the outer box in a sliding mode in the horizontal direction, an opening for the inner box to stretch out is formed in one end of the outer box, and tracks extending in the sliding direction of the inner box are arranged on the inner side wall of the outer box in pairs. The two rails are symmetrically distributed on the two sides of the inner box in the direction perpendicular to the sliding direction of the inner box, the inner box is of a groove-shaped structure with the top open, cryopreservation tubes are stored in the inner box, sliding blocks are arranged at the positions, corresponding to the rails, of the side wall of the inner box, and the sliding blocks are correspondingly installed on the rails in a sliding mode. And a first buckle assembly which is detachably matched is arranged between the sliding tail end of the inner box and the opening of the outer box, so that the cryopreservation tubes can be effectively prevented from being knocked over and polluting samples in the storing and taking process.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample collection devices, in particular to a pull-out biological freezing box. Background Art

[0002] In the fields of biology, food, and medicine, biological samples such as blood, vaccines, strains, and microorganisms need to be placed in liquid nitrogen or in a -80°C ultra-low temperature refrigerator for long-term active preservation. Biological cryopreservation boxes are used to arrange and store multiple cryopreservation tubes, and biological samples are stored in the cryopreservation tubes. Cryopreservation boxes are standard parts, and the size specifications are all standard parameters. Existing cryopreservation tubes are usually simply snapped together with the box cover and the box body, and do not have the function of locking the box cover. This results in that if the cryopreservation box is accidentally overturned in actual operation, the samples stored in the cryopreservation box will spill out, which not only wastes time when reorganizing the samples, but also causes the samples to be contaminated, which is not conducive to the experiment. In addition, most of the current cryopreservation boxes are composed of a box body and a lid. The outer wall of the upper end of the box body needs to be provided with a step for placing the lid, and it needs to be matched with the box body with a lock. These structures take up a large space, reduce space utilization, and reduce the storage capacity of cryopreservation tubes. Utility Model Content

[0003] The utility model aims to provide a pull-out biological freezing box to solve the problems existing in the above-mentioned prior art and can effectively prevent the freezing tubes from being knocked over during the storage and access process to contaminate the samples.

[0004] To achieve the above-mentioned purpose, the utility model provides the following solution: the utility model provides a pull-out biological freezing box, comprising an outer box with a hollow structure and an inner box slidably installed inside the outer box along a horizontal direction, one end of the outer box is provided with an opening for the inner box to extend out, and the inner side wall of the outer box is provided with pairs of tracks extending along the sliding direction of the inner box, the two tracks are symmetrically distributed on both sides of the inner box along a direction perpendicular to the sliding direction of the inner box, the inner box is a trough-like structure with an open top, and cryopreservation tubes are stored inside it, sliders are provided at positions corresponding to the tracks on the side walls of the inner box, and each slider is slidably installed on the track accordingly, and a detachable first snap-fit ​​assembly is provided between the sliding end of the inner box and the opening of the outer box.

[0005] Preferably, the track is a strip groove opened on the inner wall of the outer box, the slider is a strip protrusion adapted to the strip groove structure, and the strip protrusion is slidably embedded in the strip groove.

[0006] Preferably, the first snap assembly includes two pairs of first male ends and first female ends that are snap-fitted together, the two first female ends are respectively installed at the positions of each of the strip grooves close to the opening, and the two first male ends are respectively installed at the sliding ends of each of the strip protrusions, and are slidably snap-fitted or separated with the corresponding first female ends as the strip protrusions slide.

[0007] Preferably, the first male end includes an elastic paddle located at the rear side of the strip-shaped protrusion along the sliding direction, one end of the elastic paddle is installed on the side wall of the inner box, and the other end extends toward the opening and slides against the inner wall of the corresponding strip-shaped groove, and a positioning groove for the end of the elastic paddle to be inserted into is provided on the inner wall of the strip-shaped groove located at the opening.

[0008] Preferably, a ball is provided at the end of the elastic paddle not connected to the inner box, the ball slides against the inner wall of the strip-shaped groove, and the structure of the ball matches the positioning groove and is embedded in the positioning groove.

[0009] Preferably, a box cover is buckled at the opening, one side edge of the box cover is rotatably connected to the outer box body, and a second buckle assembly is provided between the other side edge of the box body and the end wall of the outer box.

[0010] Preferably, the second buckle assembly includes a second male end mounted on the box cover, and a second female end mounted on the outer box and detachably matched with the second male end, and the second male end is inserted into the second female end after being rotated with the box cover and buckled on the opening.

[0011] Preferably, the inner box is provided with a pair of recessed portions along the front end in the sliding direction thereof, and the two recessed portions are symmetrically arranged at the two side edges of the end surface of the inner box along the vertical direction or the horizontal direction.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] A detachable first snap assembly is provided between the sliding end of the inner box and the opening of the outer box. When the inner box is pulled outward, when the sliding end of the inner box reaches the opening of the outer box, the two are snapped together by the first snap assembly to prevent the inner box from slipping out of the outer box, so that the inner box and the outer box are always combined together. Then, on the one hand, the inner box does not separate from the outer box during the pulling process, thereby ensuring the stability of the inner box when in use, and being able to fully avoid the risk of the inner box being overturned when used alone and the risk of contamination of biological samples. On the other hand, the inner box is installed in the outer box, so that the outer box covers and protects the inner box as a whole. Even if the entire outer box and the inner box are accidentally overturned, the damage to the inner box will be fully reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the cooperation between the inner box and the outer box of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the outer side of the inner box of the utility model;

[0017] Figure 3 This is a schematic diagram of the inner side structure of the outer box of the utility model;

[0018] Among them, 1-the second male end, 2-the second female end, 3-the strip-shaped groove, 4-the box cover, 5-the outer box, 6-the opening, 7-the inner box, 8-the recessed portion, 9-the strip-shaped protrusion, 10-the elastic pick, and 11-the positioning groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model aims to provide a pull-out biological freezing box to solve the problems existing in the above-mentioned prior art and can effectively prevent the freezing tubes from being knocked over during the storage and retrieval process, thereby contaminating the biological samples.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1 to 3As shown, the present embodiment provides a pull-out biological freezing box, comprising an outer box 5 with a hollow structure and an inner box 7 slidably installed inside the outer box 5 along the horizontal direction. Preferably, the inner box 7 and the outer box 5 are both made of medical plastic, but are not limited to medical plastic materials. An opening 6 is provided at one end of the outer box 5 for the inner box 7 to extend out, and pairs of tracks are provided on the inner side wall of the outer box 5, both extending along the sliding direction of the inner box 7. The two tracks are symmetrically distributed on both sides of the inner box 7 along a direction perpendicular to the sliding direction of the inner box 7. The inner box 7 is a trough-shaped structure with an open top, and cryogenic tubes are stored therein. Specifically, the inner box 7 is provided with a cryogenic tube hole, and sliders are provided at positions corresponding to the tracks on the side walls of the inner box 7, and each slider is correspondingly slidably installed on the track, wherein a pair of tracks is provided to facilitate the inner box 7 to slide smoothly in the outer box 5 The inner box 7 is movable to ensure the stability of the biological samples stored in it during the pulling process. A detachable first snap assembly is provided between the sliding end of the inner box 7 and the opening 6 of the outer box 5. When the inner box 7 is pulled outward, when the sliding end of the inner box 7 reaches the opening 6 of the outer box 5, the two are clamped together by the first snap assembly to prevent the inner box 7 from falling out of the outer box 5, so that the inner box 7 and the outer box 5 are always combined together. Then, on the one hand, the inner box 7 does not separate from the outer box 5 during the pulling process, which ensures the stability of the inner box 7 during use and can fully avoid the risk of overturning when the inner box 7 is used alone. On the other hand, the inner box 7 is installed in the outer box 5, so that the outer box 5 covers and protects the inner box 7 as a whole. Even if the entire outer box 5 and the inner box 7 are accidentally overturned, the damage to the inner box 7 will be fully reduced.

[0023] Among them, the track is a strip groove 3 opened on the inner wall of the outer box 5, the slider is a strip protrusion 9 adapted to the structure of the strip groove 3, the strip protrusion 9 is slidably embedded in the strip groove 3, and the stability of the inner box 7 during the sliding process in the outer box 5 is further guaranteed by the embedded fit of the strip protrusion 9 and the strip groove 3.

[0024] As a preferred embodiment of the utility model, the first snap assembly includes two pairs of first male ends and first female ends that are snap-fitted together. The two first female ends are respectively installed at the positions of each strip groove 3 close to the opening 6, and the two first male ends are respectively installed at the sliding ends of each strip protrusion 9, and slide and engage or separate with the corresponding first female ends as the strip protrusion 9 slides. Specifically, the first male end includes an elastic paddle 10 located at the rear side of the strip protrusion 9 along the sliding direction. One end of the elastic paddle 10 is installed on the side wall of the inner box 7, and the other end extends toward the opening 6 and slides against the inner wall of the corresponding strip groove 3. A positioning groove 11 for the end of the elastic paddle 10 to be snapped into is provided on the inner wall of the strip groove 3 located at the opening 6. Then, when in use, when the inner box 7 is pulled, the sliding end of the elastic paddle 10 as the first male end is squeezed into the strip groove 3 and slides along the inner wall of the strip groove 3. When the inner box 7 is pulled out, When the first male end and the first female end of the box 7 are in contact, the sliding end of the elastic paddle 10 is inserted into the positioning groove 11 as the first female end to limit the inner box 7 from continuing to move outward, and after storage is completed, the inner box 7 is pushed to move toward the inner side of the outer box 5. Since one end of the elastic paddle 10 is connected to the side wall of the inner box 7 and the other end extends toward the opening 6, its overall structure is an inclined structure extending toward the opening 6, and the elastic paddle 10 can be easily pulled to swing toward the side away from the positioning groove 11, so as to separate the elastic paddle 10 from the positioning groove 11. It should be noted that the selection of the first male end and the first female end includes but is not limited to the elastic paddle 10 and the positioning groove 11.

[0025] Preferably, in order to ensure the smoothness of the elastic paddle 10 during the sliding process, a ball is provided at the end of the elastic paddle 10 not connected to the inner box 7, and the ball slides against the inner wall of the strip groove 3, and the structure of the ball matches the positioning groove 11 and is embedded in the positioning groove 11. Moreover, the spring paddles are preferably arranged in pairs, one end of each of the two spring paddles is mounted on the inner box 7, and the other end extends upward and downward respectively, and the positioning grooves 11 are provided on the top wall and the bottom wall of the strip groove 3 respectively.

[0026] Furthermore, a box cover 4 is buckled at the opening 6, and one side edge of the box cover 4 is rotatably connected to the box body of the outer box 5, and a second snap-fit ​​assembly is provided between the other side edge of the box body and the end wall of the outer box 5. The inner box 7 is further sealed by providing the box cover 4, so as to effectively store the inner box 7 after the biological sample is stored, and prevent the inner box 7 from slipping out of the outer box 5 during the transfer of the outer box 5. Moreover, after the box cover 4 is preferably closed, the internal space of the outer box 5 matches the structure of the inner box 7, so as to ensure that the box cover 4 can be pressed against the side wall of the inner box 7, thereby ensuring the stability of the inner box 7.

[0027] Preferably, the second buckle assembly includes a second male end 1 mounted on the box cover 4, and a second female end 2 mounted on the outer box 5 and detachably matched with the second male end 1. The second male end 1 is buckled on the opening 6 with the rotation of the box cover 4 and then plugged into the second female end 2. The second male end 1 and the second female end 2 include but are not limited to the buckle structure, and the second female end 2 is mounted on the end surface of the outer box 5 to reduce the occupation of the internal space of the outer box 5, thereby ensuring that the number of biological samples stored is not affected.

[0028] As a preferred embodiment of the present invention, the inner box 7 is provided with a pair of recessed portions 8 along the front end in the sliding direction thereof, and the two recessed portions 8 are symmetrically arranged at the two side edges of the end surface of the inner box 7 along the vertical direction or the horizontal direction. During use, the technicians in this field open the box cover 4 and pull the inner box 7 outward by holding the two recessed portions 8. Therefore, the two recessed portions 8 are arranged to ensure the convenience of pulling the inner box 7, and the recessed portions 8 are arranged on the end surface of the inner box 7 to fully avoid occupying the space of the inner box 7.

[0029] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0030] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0031] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pull-out biological freezing box, characterized in that: It includes an outer box with a hollow structure and an inner box slidably installed inside the outer box along a horizontal direction. One end of the outer box is provided with an opening for the inner box to extend out, and the inner side wall of the outer box is provided with pairs of tracks extending along the sliding direction of the inner box. The two tracks are symmetrically distributed on both sides of the inner box along a direction perpendicular to the sliding direction of the inner box. The inner box is a trough-like structure with an open top, and cryopreservation tubes are stored inside it. Slide blocks are provided at positions corresponding to the tracks on the side walls of the inner box, and each of the slide blocks is slidably installed on the track accordingly. A detachable first snap-fit ​​assembly is provided between the sliding end of the inner box and the opening of the outer box.

2. The pull-out biological freezing box according to claim 1, characterized in that: The track is a strip groove opened on the inner wall of the outer box, and the slider is a strip protrusion adapted to the structure of the strip groove, and the strip protrusion is slidably embedded in the strip groove.

3. The pull-out biological freezing box according to claim 2, characterized in that: The first snap assembly includes two pairs of first male ends and first female ends that are snap-fitted together, the two first female ends are respectively installed at the positions of each of the strip grooves close to the openings, and the two first male ends are respectively installed at the sliding ends of each of the strip protrusions, and are slidably snap-fitted or separated with the corresponding first female ends as the strip protrusions slide.

4. The pull-out biological freezing box according to claim 3, characterized in that: The first male end includes an elastic paddle located at the rear side of the strip-shaped protrusion along the sliding direction, one end of the elastic paddle is installed on the side wall of the inner box, and the other end extends toward the opening and slides against the inner wall of the corresponding strip-shaped groove, and a positioning groove for the end of the elastic paddle to be inserted into is provided on the inner wall of the strip-shaped groove located at the opening.

5. The pull-out biological freezing box according to claim 4, characterized in that: A ball is provided at the end of the elastic paddle not connected to the inner box. The ball is slidably abutted against the inner wall of the strip-shaped groove, and the structure of the ball matches the positioning groove and is embedded in the positioning groove.

6. The pull-out biological freezing box according to any one of claims 2 to 5, characterized in that: A box cover is buckled at the opening, one side edge of the box cover is rotatably connected to the outer box body, and a second buckle assembly is provided between the other side edge of the box body and the end wall of the outer box.

7. The pull-out biological freezing box according to claim 6, characterized in that: The second buckle assembly includes a second male end mounted on the box cover, and a second female end mounted on the outer box and detachably matched with the second male end. The second male end is rotated with the box cover and buckled on the opening and then plugged into the second female end.

8. The pull-out biological freezing box according to claim 7, characterized in that: The inner box is provided with a pair of recessed parts along the front end in the sliding direction, and the two recessed parts are symmetrically arranged at the two side edges of the inner box end surface along the vertical direction or the horizontal direction.

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