Microcentrifuge tube for vacuum concentrator

Abstract

The utility model discloses a microcentrifuge tube for a vacuum concentrator, which belongs to the technical field of microcentrifuge tubes and comprises a centrifuge tube body and a tube cover body sleeved at the top of the outer side wall of the centrifuge tube body, and a through hole penetrating through the tube cover body is arranged at the axis of the tube cover body. A through hole is formed in the pipe cover body, a plurality of limiting blocks and a plurality of limiting check blocks are arranged at the bottom of the pipe cover body, the limiting blocks and the limiting check blocks are distributed in an annular array mode and are all close to the through hole, and an on-off assembly is arranged between the limiting blocks and the limiting check blocks in a sliding mode and comprises a sliding block; the diameter of the sliding block is matched with the size of the through hole, and the position of the sliding block is restrained by the limiting block and the limiting check block. When the microcentrifuge tube for the vacuum concentrator is used, the sliding block can be positioned at different positions according to different stages of an experiment, and substances obtained after vacuum concentration can be isolated, so that the deterioration probability of the substances is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of microcentrifuge tubes, and in particular relates to a microcentrifuge tube used for a vacuum concentrator. Background Art

[0002] Microcentrifuge tubes (EP tubes), as one of the indispensable basic consumables for laboratory research, are mainly made of high-quality polypropylene (PP) or polycarbonate (PC) materials. They are suitable for processing trace samples and are key tools for sample processing, preservation, reaction and analysis in the fields of biochemistry, molecular biology, genetics, immunology and clinical testing.

[0003] In the vacuum concentrator, the EP tube will determine whether the tube cap needs to be opened based on the experimental operation requirements. For example, when using the respiratory pathogen nucleic acid targeted detection kit to perform a one-time test of multiple pathogen gene sequence information, the EP tube cap must remain open to achieve the purpose of extracting moisture. The EP tube can indeed be directly opened and placed in the concentrator during experimental operations, but there are potential problems in this process. Directly opening the cap to take samples may cause the operator to accidentally touch and overturn the surrounding EP tubes, causing cross-contamination of samples. To solve this problem, the experimenters adopted a workaround strategy, drilling small holes in the EP tube cap in advance with a knife or other sharp tool, so that vacuum concentration can be performed with the tube cap closed.

[0004] However, this mode of operation also faces challenges. After vacuum concentration, since the EP tube has been damaged, it is impossible to isolate the remaining substances after vacuum concentration, which may cause the substances obtained by vacuum concentration to deteriorate. Utility Model Content

[0005] The utility model aims to provide a microcentrifuge tube for a vacuum concentrator, so as to solve the problem in some current experiments mentioned in the background technology that the EP tube is damaged by opening the EP tube cover, resulting in the possibility of deterioration of the substance obtained by vacuum concentration after being taken out.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a microcentrifuge tube for a vacuum concentrator, comprising a centrifuge tube body and a tube cover body sleeved on the top of the outer wall of the centrifuge tube body, a through hole penetrating the tube cover body is opened at the axis of the tube cover body, a plurality of limit blocks and a plurality of limit stops are arranged at the bottom of the tube cover body, the limit blocks and the limit stops are distributed in a ring array, and the limit blocks and the limit stops are close to the through hole, and a switch assembly is slidably arranged between the limit blocks and the limit stops;

[0007] The switch assembly comprises a sliding block, the diameter of which matches the size of the through hole, and the position of the sliding block is constrained by a limiting block and a limiting stopper.

[0008] In one of the embodiments, a plurality of the limiting blocks are provided with limiting grooves on one side close to the axis of the tube cover body, and a bottom stopper is fixed at the bottom of the limiting groove.

[0009] In one of the embodiments, the side wall of the sliding block is provided with a plurality of limit blocks distributed in a circular array, the number of the limit blocks is the same as the number of the limit slots, and the positions of the limit blocks correspond to the positions of the limit slots one by one, and the sliding block is slidably connected to the limit slots via the limit blocks.

[0010] In one embodiment, the bottoms of the plurality of limit blocks on the side close to the axis of the tube cover body are inclined toward the direction close to the axis of the tube cover body.

[0011] In one of the embodiments, the side wall of the sliding block is provided with a limit slot that matches with the limit stopper.

[0012] In one embodiment, a fixing ring is fixed on the top of the outer wall of the centrifuge tube body, and the tube cover body is connected to the fixing ring via a connecting belt.

[0013] In one of the embodiments, a matching slot is provided on the top of the sliding block, and the matching slot is engaged with the insertion rod by rotating the matching block.

[0014] Beneficial Effects

[0015] Technical effects and advantages of the microcentrifuge tube for vacuum concentrator:

[0016] When using a vacuum concentrator for vacuum concentration, the microcentrifuge tube for the vacuum concentrator is selected to store the material to be vacuum concentrated. When performing vacuum concentration, the sliding block is pressed downward, and the limit block is stuck on the top of the sliding block so that the sliding block cannot move upward. An open channel is formed between the sliding block and the tube cover. During vacuum concentration, water is extracted from the channel formed by the sliding block and the tube cover. After the vacuum concentration is completed, the insertion rod is stuck on the sliding block, and the insertion rod is pulled upward to reset the sliding block. The microcentrifuge tube for the vacuum concentrator can place the sliding block in different positions according to different stages of the experiment during use, and the obtained material can be isolated after vacuum concentration to reduce the probability of its deterioration.

[0017] After adding the substance to be vacuum concentrated into the centrifuge tube body, turn the tube cover to make the buckle lock on the fixed ring, which can strengthen the tube cover to a certain extent and reduce the possibility of the tube cover opening during the vacuum concentration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a microcentrifuge tube used in a vacuum concentrator;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure after the centrifuge tube body, the fixing ring and the tube cover body are cut apart along AA;

[0022] Figure 4 for Figure 3 Partial structural disassembly diagram of the middle tube cover body and the sliding block;

[0023] Figure 5 It is a schematic diagram of the structure of an open channel formed after the sliding block slides downward;

[0024] Figure 6 It is a schematic diagram of the structure after the limit block is pulled upward by the insertion rod.

[0025] In the figure:

[0026] 11. Centrifuge tube body; 12. Fixing ring; 13. Connecting belt; 14. Tube cover body;

[0027] 141. groove; 142. buckle;

[0028] 21, through hole; 22, limit block; 221, limit groove; 222, bottom stopper; 23, limit stopper;

[0029] 31. Sliding block; 311. Limiting block; 312. Limiting slot; 32. Matching slot;

[0030] 41. Insert rod; 42. Matching clamp block. DETAILED DESCRIPTION

[0031] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In order to avoid confusion with the present invention, some technical features known in the art are not described.

[0032] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0033] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0034] Please refer to Figure 1-Figure 6 A microcentrifuge tube for a vacuum concentrator is shown, comprising a centrifuge tube body 11 and a tube cover body 14 sleeved on the top of the outer wall of the centrifuge tube body 11, a fixing ring 12 is fixed on the top of the outer wall of the centrifuge tube body 11, the tube cover body 14 is connected to the fixing ring 12 via a connecting belt 13, a groove 141 is provided on the side of the bottom of the tube cover body 14 away from the connecting belt 13, which can reduce the fitting area of ​​the connection between the tube cover body 14 and the centrifuge tube body 11 on this side, reduce the friction between the tube cover body 14 and the centrifuge tube body 11, and facilitate opening the tube cover body 14; a buckle 142 is provided at the groove 141, and when the tube cover body 14 is covered on the centrifuge tube body 11, the buckle 142 can be stuck on the fixing ring 12, which can improve the fixing effect of the tube cover body 14 after being covered.

[0035] In this embodiment, a through hole 21 penetrating the tube cover body 14 is opened at the axis of the tube cover body 14, and a plurality of limit blocks 22 and a plurality of limit stops 23 are arranged at the bottom of the tube cover body 14. The limit blocks 22 and the limit stops 23 are distributed in a ring array, and the limit blocks 22 and the limit stops 23 are close to the through hole 21. A switch assembly is slidably arranged between the limit blocks 22 and the limit stops 23. The switch assembly includes a sliding block 31. The diameter of the sliding block 31 matches the size of the through hole 21. The position of the sliding block 31 is constrained by the limit blocks 22 and the limit stops 23. When setting, the limit stops 23 are made of a material that can be reset after deformation, and can be reset after being squeezed and deformed and the external force is removed.

[0036] like Figure 3-Figure 5 As shown, a plurality of limit blocks 22 and a plurality of limit stop blocks 23 are arranged at intervals, which can improve the stability of the sliding block 31 during movement to a certain extent.

[0037] In this embodiment, a plurality of limit blocks 22 are provided with limit grooves 221 on one side close to the axis of the tube cover body 14, and a bottom stopper 222 is fixed to the bottom of the limit groove 221. A plurality of limit blocks 311 distributed in a circular array are provided on the side wall of the sliding block 31. The number of the limit blocks 311 is the same as the number of the limit grooves 221, and the positions of the limit blocks 311 correspond to the positions of the limit grooves 221 one by one. The sliding block 31 is slidably connected to the limit groove 221 via the limit blocks 311.

[0038] like Figure 4 As shown, the sliding block 31 is slidably disposed on a plurality of limiting blocks 22 at the bottom of the pipe cover body 14 via a limiting block 311 , and the bottom stopper 222 is used to limit the position of the bottom of the sliding block 31 so that it will not fall off the limiting block 22 .

[0039] In this embodiment, the bottoms of the plurality of limit blocks 23 close to the axis of the tube cover body 14 are inclined toward the axis of the tube cover body 14 , and the side wall of the sliding block 31 is provided with a limit slot 312 that matches the limit block 23 .

[0040] like Figure 3 As shown, the sliding block 31 is in a state of not sliding downward, and the limit stopper 23 is stuck in the limit slot 312. Since the limit stopper 23 is stuck, the sliding block 31 remains stationary and does not slide downward when no external force is applied. Figure 5 As shown, when the sliding block 31 is forced to move downward, the limit stopper 23 will be squeezed and deformed. When the bottom end of the sliding block 31 contacts the bottom stopper 222, the sliding block 31 is separated from the limit stopper 23, and the limit stopper 23 is reset without external force and is stuck on the top of the sliding block 31. The sliding block 31 cannot move under the action of the bottom stopper 222 and the limit stopper 23, and an open channel is formed between the sliding block 31 and the tube cover body 14 to facilitate the extraction of moisture.

[0041] In this embodiment, a matching slot 32 is formed on the top of the sliding block 31 , and the matching slot 32 is rotatably connected to the insertion rod 41 through the matching block 42 .

[0042] like Figure 1 , Figure 6 As shown, after the vacuum concentration is completed, the centrifuge tube body 11 is taken out, and the insertion rod 41 is rotated to be clamped on the sliding block 31, so that the matching clamping block 42 is clamped in the matching clamping groove 32. At this time, the insertion rod 41 will open the limit block 23, and the limit block 23 will no longer clamp the sliding block 31. The sliding block 31 can move upward under the action of the insertion rod 41, and can be attached to the tube cover body 14 to close the open channel, thereby isolating the substances obtained by vacuum concentration.

[0043] Working principle: When using a vacuum concentrator for vacuum concentration, the microcentrifuge tube for the vacuum concentrator is selected to store the material to be vacuum concentrated. When performing vacuum concentration, the sliding block 31 is pressed downward, and the limit block 311 of the sliding block 31 moves along the limit groove 221 toward the direction close to the bottom of the microcentrifuge tube. The sliding block 31 opens a plurality of limit blocks 23, so that the limit blocks 23 slide out of the limit groove 312 of the sliding block 31. When the sliding block 31 moves to the bottom and sticks to the bottom block 222, the top of the sliding block 31 separates from the limit block 23. The limit stopper 23 is reset and stuck on the top of the sliding block 31 under the action of its own elasticity, so that the sliding block 31 cannot move upward. At this time, an open channel is formed between the sliding block 31 and the tube cover 14. During vacuum concentration, water is extracted from the channel formed by the sliding block 31 and the tube cover 14. After the vacuum concentration is completed, the microcentrifuge tube is taken out, and the insertion rod 41 is pressed down and rotated to make the matching block 42 stuck in the matching groove 32 of the sliding block 31, and the insertion rod 41 can open the limit stopper 23, and the insertion rod 41 is pulled upward to drive the sliding block 31 to move upward, so that the sliding block 31 can be reset.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microcentrifuge tube for a vacuum concentrator, comprising a centrifuge tube body (11) and a tube cover body (14) sleeved on the top of the outer side wall of the centrifuge tube body (11), characterized in that: A through hole (21) penetrating the tube cover body (14) is provided at the axis of the tube cover body (14); a plurality of limit blocks (22) and a plurality of limit blocks (23) are provided at the bottom of the tube cover body (14); the limit blocks (22) and the limit blocks (23) are distributed in a ring array, and the limit blocks (22) and the limit blocks (23) are both close to the through hole (21); and a switch assembly is slidably provided between the limit blocks (22) and the limit blocks (23); The switch assembly comprises a sliding block (31), the diameter of the sliding block (31) matches the size of the through hole (21), and the position of the sliding block (31) is constrained by a position limiting block (22) and a position limiting block (23).

2. A microcentrifuge tube for a vacuum concentrator according to claim 1, characterized in that: A plurality of the limit blocks (22) are provided with a limit groove (221) on one side close to the axis of the pipe cover body (14), and a bottom stopper (222) is fixed at the bottom of the limit groove (221).

3. A microcentrifuge tube for a vacuum concentrator according to claim 2, characterized in that: The side wall of the sliding block (31) is provided with a plurality of limiting blocks (311) distributed in a ring array, the number of the limiting blocks (311) is the same as the number of the limiting grooves (221), and the positions of the limiting blocks (311) and the positions of the limiting grooves (221) correspond one to one, and the sliding block (31) is slidably connected to the limiting grooves (221) via the limiting blocks (311).

4. A microcentrifuge tube for a vacuum concentrator according to claim 1, characterized in that: The bottoms of the plurality of limit blocks (23) on the side close to the axis of the tube cover body (14) are all inclined towards the direction close to the axis of the tube cover body (14).

5. A microcentrifuge tube for a vacuum concentrator according to claim 4, characterized in that: The side wall of the sliding block (31) is provided with a limiting slot (312) that matches the limiting stopper (23).

6. A microcentrifuge tube for a vacuum concentrator according to claim 1, characterized in that: A fixing ring (12) is fixed on the top of the outer wall of the centrifuge tube body (11), and the tube cover body (14) is connected to the fixing ring (12) via a connecting belt (13).

7. A microcentrifuge tube for a vacuum concentrator according to claim 1, characterized in that: The top of the sliding block (31) is provided with a matching slot (32), and the matching slot (32) is rotatably connected to the insertion rod (41) via the matching block (42).

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