Cover plug structure of cryopreservation tube

Abstract

The utility model discloses a cover plug structure of a cryopreservation tube, which relates to the technical field of biological sample storage equipment and comprises a connecting rod, a holding piece, an elastic piece, a plug head and a marker, the holding piece is arranged at the top of the connecting rod, the elastic piece is arranged in the middle of the connecting rod, the plug head is arranged at the bottom of the connecting rod, and a limiting groove is arranged on the top surface of the holding piece. A limiting groove is formed in the bottom of the marker, an inserting groove is formed in the groove bottom of the limiting groove, a limiting part extending towards the periphery of the marker is arranged at the top of the marker, a first inward concave face is arranged on the side portion of the limiting part, a second inward concave face is arranged on the side portion of the marker, the second inward concave face is arranged below the first inward concave face, and when the marker is inserted into the inserting groove, the bottom face of the limiting part abuts against the groove bottom of the limiting groove. The sampling device is convenient to distinguish during batch sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample storage equipment, and particularly relates to a plug structure for a cryopreservation tube. Background Art

[0002] A cryopreservation tube is a disposable laboratory consumable dedicated to storing biological samples. After loading a biological sample into the cryopreservation tube, a plug needs to be used to block the tube opening to achieve a sealing effect.

[0003] For example, in the patent with the publication number CN219816301U, "A Disposable Blood Sampling Tube Plug" is disclosed. As Figure 10 shown, this patent includes a plug head 1, a connecting rod 2, a holding member 4, and an elastic sheet 3. The plug head 1 is used to be inserted into the test tube. The two ends of the connecting rod 2 are respectively connected to the plug head 1 and the holding member 4. The elastic sheet 3 is located between the plug head 1 and the holding member 4. The elastic sheet 3 is connected to the outer wall of the connecting rod 2, and the outer edge of the elastic sheet 3 abuts against the inner wall of the test tube. This patent can also achieve a sealing effect.

[0004] Through the above introduction, it can be known that the existing plug structure can play a sealing role. However, when sampling in batches, it is difficult to distinguish between the plug structures used to block the cryopreservation tubes. Therefore, it is urgent to develop a plug structure that is easy to distinguish. Content of the Utility Model

[0005] Aiming at the above deficiencies of the existing technology, the utility model provides a plug structure for a cryopreservation tube, which can be easily distinguished when sampling in batches.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A plug structure for a cryopreservation tube includes a connecting rod, a holding member, an elastic sheet, a plug head, and an identifier. The top of the connecting rod is provided with a holding member, the middle of the connecting rod is provided with an elastic sheet, the bottom of the connecting rod is provided with a plug head. The top surface of the holding member is provided with a limiting groove, and the bottom of the limiting groove is provided with a slot. The top of the identifier is provided with a limiting portion extending towards the outer periphery of the identifier. The side of the limiting portion is provided with a first concave surface, and the side of the identifier is provided with a second concave surface. The second concave surface is arranged below the first concave surface. When the identifier is inserted into the slot, the bottom surface of the limiting portion abuts against the bottom of the limiting groove.

[0008] Further, an extension groove is provided at the bottom of the slot, and the bottom of the extension groove extends to the bottom of the connecting rod.

[0009] Further, the holding member adopts a cylindrical structure.

[0010] Further, the outer side wall of the holding member is provided with transverse anti-slip lines.

[0011] Furthermore, a spherical transition is adopted between the bottom of the holding member and the side portion of the connecting rod.

[0012] Furthermore, both the elastic sheet and the plug head adopt an umbrella-shaped structure.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. During batch sampling, markers of different colors can be inserted into the slots of each plug cover structure, making it convenient to distinguish each plug cover structure.

[0015] 2. Since the marker can be taken out of the slot, the marker can be reused, saving material costs.

[0016] 3. The arrangement of the extension groove can save the material used for the entire plug cover structure, further saving material costs.

[0017] 4. Compared with vertical anti-slip lines, the anti-slip effect of horizontal anti-slip lines is better, which can improve the stability of the user holding the holding member.

[0018] 5. Using a spherical transition between the bottom of the holding member and the side portion of the connecting rod can strengthen the connection strength between the holding member and the connecting rod.

[0019] 6. Compared with a plane, by setting a spherical transition, the spherical surface can be used to enter the pipe orifice of the cryopreservation tube, reducing the gap between the pipe orifice of the cryopreservation tube and the bottom surface of the holding member, and further improving the sealing effect.

[0020] 7. The outer edges of the elastic sheet and the plug head both abut against the inner wall of the cryopreservation tube, playing a sealing role.

[0021] 8. Since the plug head is of an umbrella-shaped structure, the surface shape of the plug head can guide the plug head to smoothly enter the cryopreservation tube. Moreover, when the sample in the cryopreservation tube is shaken, the surface shape of the plug head can buffer the impact of the sample on the plug head.

[0022] 9. During the process of the elastic sheet entering the interior of the cryopreservation tube, the outer edge of the elastic sheet abuts against the inner wall of the cryopreservation tube and slides downward, so the elastic sheet can play a guiding role to ensure that the entire plug cover structure moves vertically downward and prevent skew. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of a plug cover structure of a cryopreservation tube in Embodiment 1 Figure 1 ;

[0024] Figure 2 is a perspective view of a plug cover structure of a cryopreservation tube in Embodiment 1 Figure 2 ;

[0025] Figure 3 is the front view of a plug cover structure of a cryopreservation tube in Embodiment 1;

[0026] Figure 4 It is a top view of the cap structure of a cryotube in Embodiment 1;

[0027] Figure 5 It is a full cross-sectional view of the cap structure of a cryotube in Embodiment 1;

[0028] Figure 6 It is a three-dimensional view of the cap structure of a cryotube in Embodiment 2 without the identifier;

[0029] Figure 7 It is a full cross-sectional view of the cap structure of a cryotube in Embodiment 2 without the identifier;

[0030] Figure 8 It is a usage schematic diagram of the cap structure of a cryotube in Embodiment 2 without the identifier Figure 1 ;

[0031] Figure 9 It is a usage schematic diagram of the cap structure of a cryotube in Embodiment 2 without the identifier Figure 2 ;

[0032] Figure 10 It is a schematic structural diagram of the background art.

[0033] Explanation of reference numerals:

[0034] 1 - Plug head,

[0035] 2 - Connecting rod, 21 - Fixed rod, 211 - Through hole, 212 - Stop ring, 213 - Reinforcing column, 22 - Movable sleeve,

[0036] 3 - Elastic sheet, 31 - First elastic sheet, 32 - Second elastic sheet,

[0037] 4 - Gripping member, 41 - Limiting groove, 42 - Slot, 43 - Extension groove, 44 - Spherical surface, 45 - Transverse anti-slip pattern, 5 - Identifier, 51 - Limiting portion, 511 - First concave surface, 52 - Second concave surface. Detailed implementation manners

[0038] To better understand the present utility model, the present utility model will be further described below with reference to the accompanying drawings. It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] Example 1:

[0040] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , a plug structure for a cryotube, comprising a connecting rod 2, a holding member 4, an elastic sheet 3, a plug head 1, and an identifier 5.

[0041] A holding member 4 is provided at the top of the connecting rod 2. The holding member 4 has a cylindrical structure. A limiting groove 41 is provided on the top surface of the holding member 4, and a slot 42 is provided at the bottom of the limiting groove 41. An extension groove 43 is provided at the bottom of the slot 42, and the bottom of the extension groove 43 extends to the bottom of the connecting rod 2. A spherical surface 44 is provided for transition between the bottom of the holding member 4 and the side of the connecting rod 2. Transverse anti-slip lines 45 are provided on the outer side wall of the holding member 4.

[0042] An elastic sheet 3 is provided in the middle of the connecting rod 2. The elastic sheet 3 has an umbrella-shaped structure.

[0043] A plug head 1 is provided at the bottom of the connecting rod 2. The plug head 1 also has an umbrella-shaped structure.

[0044] The connecting rod 2, the holding member 4, the elastic sheet 3, and the plug head 1 are of an integral structure.

[0045] A limiting portion 51 extending towards the outer periphery of the identifier 5 is provided at the top of the identifier 5. The limiting portion 51 and the identifier 5 are of an integral structure. A first concave surface 511 is provided on the side of the limiting portion 51, and a second concave surface 52 is provided on the side of the identifier 5. The second concave surface 52 is provided below the first concave surface 511. When the identifier 5 is inserted into the slot 42, the bottom surface of the limiting portion 51 abuts against the bottom of the limiting groove 41.

[0046] The working principle of this Example 1 is as follows:

[0047] (1) When sealing the opening of the cryotube:

[0048] ①. The user holds the holding member 4 and inserts the plug head 1 into the opening of the cryotube.

[0049] Compared with vertical anti-slip lines, the transverse anti-slip lines 45 have a better anti-slip effect and can improve the stability of the user holding the holding member 4.

[0050] Since the plug head 1 has an umbrella-shaped structure, the surface shape of the plug head 1 can guide the plug head 1 to smoothly enter the cryotube. Moreover, when the sample in the cryotube is shaken, the surface shape of the plug head 1 can buffer the impact of the sample on the plug head 1.

[0051] ②. The user pushes down the gripping piece 4, so that the elastic sheet 3 also enters the tube mouth of the cryogenic tube until the outer edge of the spherical surface 44 abuts against the upper edge of the tube mouth of the cryogenic tube. At this time, the spherical surface 44 enters the tube mouth of the cryogenic tube, and the outer edges of the elastic sheet 3 and the outer edges of the plug 1 abut against the inner wall of the cryogenic tube, thereby achieving a sealing effect.

[0052] When the elastic sheet 3 enters the cryotube, the outer edge of the elastic sheet 3 abuts against the inner wall of the cryotube and slides downward, so the elastic sheet 3 can play a guiding role, ensuring that the entire cover plug structure moves vertically downward to prevent it from tilting.

[0053] The spherical surface can not only strengthen the connection strength between the holding piece and the connecting rod, but also reduce the gap between the tube mouth of the freezing tube and the bottom surface of the holding piece, thereby further improving the sealing effect.

[0054] ③. The user inserts the marker 5 downward into the slot 42 until the bottom surface of the limiting portion 51 at the top of the marker 5 abuts against the bottom of the limiting slot 41 .

[0055] During batch sampling, markers 5 of different colors can be inserted into the slots 42 of each plug cover structure, so that each plug cover structure can be easily distinguished.

[0056] In addition, when the number of samples is so large that color is not enough to distinguish the various plug structures, a label can be attached to the identifier 5 and a serial number can be written on the label to further distinguish them.

[0057] (2) When the marker 5 is removed from the slot 42:

[0058] The user inserts a finger between the first inner concave surface 511 and the groove wall of the limiting groove 41 , grabs the limiting portion 51 , and pulls the limiting portion 51 upward to bring out the marker 5 , so that the marker 5 is out of the slot 42 .

[0059] (3) When removing the plug structure from the cryotube:

[0060] First, the user pinches the holding piece 4 and bends it to one side, so that the outside air enters between the holding piece 4 and the elastic sheet 3, which makes it easier for the user to continue to pull out the entire plug cover structure.

[0061] Then, the user pinches the gripping member 4 and pulls out the elastic sheet 3 and the plug 1 upwards, and the entire plug structure can be taken out from the cryopreservation tube.

[0062] According to the above working principle, it can be seen that this embodiment 1 has the following effects:

[0063] During batch sampling, markers 5 of different colors can be inserted into the slots 42 of each plug cover structure, so that each plug cover structure can be easily distinguished.

[0064] Moreover, since the identifier 5 can be removed from the slot 42, the identifier 5 can be reused, saving material costs.

[0065] Embodiment 2:

[0066] Embodiment 2 further improves Embodiment 1:

[0067] In the plug structure of a cryotube in Embodiment 2, referring to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 , the elastic sheet 3 includes a first elastic sheet 31 and a second elastic sheet 32.

[0068] The connecting rod 2 includes a fixed rod 21 and a movable sleeve 22.

[0069] A holding member 4 is provided at the top of the fixed rod 21, a first elastic sheet 31 is provided in the middle of the fixed rod 21, and the fixed rod 21, the holding member 4, and the first elastic sheet 31 are of an integral structure.

[0070] A through hole 211 for passing through the fixed rod 21 is provided at the bottom of the slot 42, a stop ring 212 is provided at the bottom of the through hole 211, and the stop ring 212 and the fixed rod 21 are of an integral structure. A reinforcing column 213 is inserted into the through hole 211, and the bottom surface of the reinforcing column 213 abuts against the top surface of the stop ring 212. When the fixed rod 21 is made of rubber, the reinforcing column 213 inside the fixed rod 21 can improve the strength of the fixed rod 21. The reinforcing column 213 can be made of a wooden column.

[0071] A second elastic sheet 32 is provided at the upper part of the movable sleeve 22, a plug 1 is provided at the bottom of the movable sleeve 22, and the movable sleeve 22, the second elastic sheet 32, and the plug 1 are of an integral structure. The lower part of the fixed rod 21 is threadedly connected to the movable sleeve 22.

[0072] During the process of screwing the movable sleeve 22, since the reinforcing column 213 is provided in the through hole 211, the strength of the fixed rod 21 can be improved, and the effective cooperation of the thread between the movable sleeve 22 and the fixed rod 21 can be maintained.

[0073] The working principle of Embodiment 2 is as follows:

[0074] (1) When it is necessary to improve the sealing effect of the plug structure:

[0075] The user screws the movable sleeve 22 downward, increasing the distance between the first elastic sheet 31 and the second elastic sheet 32. Then, the plug structure is inserted into the cryotube, and the outer edges of the first elastic sheet 31, the second elastic sheet 32, and the plug 1 all abut against the inner wall of the cryotube, all playing a sealing role.

[0076] When pulling out the plug cover structure outward, if the first elastic piece 31 is pulled out of the cryogenic tube, since the second elastic piece 32 and the plug head 1 are still inside the cryogenic tube, the second elastic piece 32 and the plug head 1 can still achieve a double sealing effect, which can improve the sealing effect.

[0077] (2) When it is necessary to reduce the sealing effect of the plug cover structure:

[0078] The user screws the movable sleeve 22 upward until the first elastic piece 31 and the second elastic piece 32 are attached together. At this time, the plug cover structure is then inserted into the cryogenic tube.

[0079] When pulling out the plug cover structure outward, if the first elastic piece 31 is pulled out of the cryogenic tube, since the second elastic piece 32 is attached to the first elastic piece 31, the second elastic piece 32 also detaches from the cryogenic tube, so that only the plug head 1 in the cryogenic tube plays a sealing role, reducing the sealing effect.

[0080] From the above working principle, it can be seen that by setting the fixed rod 21, the movable sleeve 22, the first elastic piece 31 and the second elastic piece 32, the sealing effect of the plug cover structure can be adjusted by adjusting the distance between the first elastic piece 31 and the second elastic piece 32. When the first elastic piece 31 and the second elastic piece 32 are separated, the sealing effect can be improved. When the first elastic piece 31 and the second elastic piece 32 are attached together, the sealing effect can be reduced.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A capping structure for a cryopreservation tube, comprising a connecting rod, a gripping piece, an elastic sheet, and a plug, wherein the top of the connecting rod is provided with a gripping piece, the middle of the connecting rod is provided with an elastic sheet, and the bottom of the connecting rod is provided with a plug, characterized in that: It also includes an identifier, the top of the identifier is provided with a limiting portion extending toward the periphery of the identifier, the side of the limiting portion is provided with a first concave surface, the side of the identifier is provided with a second concave surface, the second concave surface is provided below the first concave surface, the top surface of the holding piece is provided with a limiting groove, the bottom of the limiting groove is provided with a slot, when the identifier is inserted into the slot, the bottom surface of the limiting portion abuts against the bottom of the limiting groove.

2. A plug structure for a cryotube according to claim 1, characterized in that: An extension groove is provided at the bottom of the slot, and the bottom of the extension groove extends to the bottom of the connecting rod.

3. A plug structure for a cryotube according to claim 1, characterized in that: The holding piece adopts a columnar structure.

4. A plug structure for a cryotube according to claim 3, characterized in that: The outer side wall of the gripping piece is provided with transverse anti-slip grooves.

5. A plug structure for a cryotube according to claim 3, characterized in that: The bottom of the gripping piece and the side of the connecting rod are transitioned through a spherical surface.

6. A plug structure for a cryotube according to claim 1, characterized in that: The elastic sheet and the plug both adopt an umbrella-shaped structure.

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