Anti-evaporation reagent storage device

Abstract

The invention belongs to the technical field of reagent evaporation prevention, and discloses an evaporation-prevention reagent storage device which comprises a storage box and further comprises a cover plate assembly, a reagent storage box and a reagent storage box, and the sealing assembly is mounted at the top of the inner wall of the cover plate assembly. According to the invention, the glass ground mouth storage piece filled with a reagent is placed in a circular groove of a sponge pad, then a sealing film is placed on a supporting assembly, the cover plate assembly and the storage box are kept vertical, the inner diameter of a guide cylinder is enlarged, and an elastic tightening piece is stretched, so that the elastic tightening piece moves downwards along the outer wall of the glass ground mouth storage piece; the sealing film is bound to the top end of the glass ground storage piece to form sealing treatment, and in the process, due to the fact that the sealing film has viscidity and is matched with the elastic tightening piece, the sealing effect of the glass ground storage piece is guaranteed, waste caused by reagent evaporation due to sealing failure is avoided, and it is further avoided that the concentration of a reagent is changed, and experiment reproducibility is affected.

Description

Technical Field

[0001] This invention belongs to the field of reagent anti-evaporation technology, specifically an anti-evaporation reagent storage device. Background Technology

[0002] Pharmacokinetic studies aim to quantitatively investigate the dynamic processes of drugs in vivo, including the four key stages of absorption, distribution, metabolism, and excretion (ADME). High-sensitivity analytical techniques (such as HPLC-MS) are used to determine the concentrations of drugs and their metabolites in blood, tissues, or body fluids. Combined with mathematical models (compartmental / non-compartmental models), kinetic analysis is performed to calculate core parameters such as half-life (t1 / 2), clearance (CL), and bioavailability (F), providing a scientific basis for drug dosage design and safety evaluation.

[0003] Currently, pharmacokinetic reagents are generally stored in standard ground glass vials, sealed with corresponding ground glass stoppers. While this traditional storage system offers advantages such as strong chemical inertness, high transparency, and ease of observing reagent conditions, it suffers from inherent sealing defects: the ground glass joints between glass vials cannot achieve complete molecular-level fit, and even with high-precision processing, gaps remain due to microscopic roughness; the inherent rigidity of glass prevents the ground glass stopper from compensating for interface unevenness through deformation like elastic materials, making this rigid contact surface prone to displacement under temperature fluctuations (such as the common ±5℃ diurnal temperature range in laboratories) or mechanical vibration; long-term wear of the ground glass surface further exacerbates sealing failure, with experimental data showing a 35-40% decrease in sealing performance after 200 opening and closing cycles; these sealing defects lead to reagent evaporation, resulting in waste, altered solution concentration, and reduced experimental reproducibility. Therefore, an anti-evaporation reagent storage device is proposed. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an anti-evaporation reagent storage device, which solves the sealing defects of existing glass ground joint storage systems due to the rigidity and micro-roughness of the material: the ground joint interface is difficult to fit completely, temperature fluctuations or vibrations cause displacement, long-term use aggravates wear, leading to reagent evaporation, concentration changes and poor experimental reproducibility.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-evaporation reagent storage device, comprising a storage box, and further comprising: A cover assembly, the cover assembly being disposed on the storage box; A sealing assembly, the sealing assembly being mounted on the top of the inner wall of the cover plate assembly; A support assembly, the support assembly being disposed on the cover plate assembly; A slitting assembly is disposed inside the storage box; A sponge pad is placed inside the storage box. A circular groove is formed in the middle of the sponge pad, and a glass ground glass storage component is placed in the groove. The sealing assembly includes a guide plate hinged to the top of the inner wall of the cover plate assembly. There are four guide plates, which together form a guide cylinder that is wide at both ends and narrow in the middle. An elastic tightening member is provided in the middle of the guide cylinder. The guide cylinder is coaxial and vertical with the glass ground joint storage component. The outer diameter of the top of the glass ground joint storage component gradually decreases from top to bottom and then gradually increases. The inner diameter of the bottom end of the guide cylinder is larger than the outer diameter of the top end of the glass ground glass storage component.

[0006] Preferably, the glass ground joint storage component is placed inside the sponge pad, and the sealing film is placed on the support assembly. The sealing film is then moved downward by the cover plate assembly, the support assembly, and the sealing film, so that the sealing film adheres to the top of the glass ground joint storage component. As the cover plate assembly continues to move downward, the cutting assembly cuts the sealing film. The elastic tightening component is guided by the guide plate to move downward along the outer wall of the glass ground joint storage component, thus binding the film to the upper end of the glass ground joint storage component. The film is made of paraffin-polyethylene and is an adhesive film.

[0007] Preferably, the cover assembly includes a cover body, and a guide receiving member is fixedly mounted on the side of the storage box. A limiting groove is formed on the guide receiving member, and a vertical sliding groove is formed inside the limiting groove. A connector is fixedly mounted on the side of the cover plate body. The cover plate body slides in the limiting groove through the connector. The lower end of the connector slides in the vertical sliding groove through the sliding spindle.

[0008] Preferably, the limiting groove is Y-shaped. When the cover plate body is pulled up to the top via the sliding mandrel and the connecting piece along the vertical slide groove and the limiting groove, the cover plate body is pushed to make the connecting piece and the sliding mandrel rotate around the central axis, and the side of the connecting piece overlaps with the side of the upper end of the limiting groove.

[0009] Preferably, a C-shaped positioning element is slidably disposed on the guide receiving component, and a limiting through groove adapted to the C-shaped positioning element is opened at the lower end of the connecting component; When the connector moves vertically along the limiting groove to the bottom, the end of the C-shaped positioning member coincides with the limiting through groove.

[0010] Preferably, the support assembly includes a support sliding frame that slides on the inner wall of the cover plate body, and a film receiving frame for receiving the sealing film is fixedly installed at the bottom of the support sliding frame; The inner wall of the cover plate body is provided with a second elastic element that pushes the supporting sliding frame downward.

[0011] Preferably, film strips are provided at both ends of the top of the film receiving frame, and the film strips are connected to the film receiving frame by magnetic attraction; The sealing film is placed on the film receiving frame and pressed tightly by the film pressure strip.

[0012] Preferably, the slitting assembly includes a cross-shaped slitting blade fixed inside the storage box, a protective frame is slidably provided on the inner wall of the storage box, and a first elastic member is provided on the inner wall of the storage box to push the protective frame upward.

[0013] Preferably, the protective frame has a first through groove in the middle that is adapted to the cross-shaped slitting blade, and initially, the top of the protective frame is higher than the blade of the cross-shaped slitting blade under the action of the first elastic element.

[0014] Preferably, the elastic coefficient of the second elastic element is greater than that of the first elastic element, and the middle part of the film receiving frame is provided with a second through groove adapted to the cross-cutting knife; When the cover plate body moves vertically downward, the film receiving frame abuts against the protective frame and pushes the protective frame downward. The sealing film on the film receiving frame is cut by the cross-cutting blade until the first elastic element is compressed to its minimum. As the cover plate body continues to move downward, the supporting sliding frame moves upward along the cover plate body and compresses the second elastic element.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention places a glass ground glass joint storage unit containing reagents into a circular groove in a sponge pad, and then places a sealing film on a support assembly. The cover assembly is kept vertical with the storage box, and the cover assembly, support assembly, and sealing film are pushed downwards along the storage box. As the cover assembly moves downwards, the sealing film contacts the top of the glass ground glass joint storage unit. A cutting assembly then cuts the sealing film into a number of rectangular blocks corresponding to the glass ground glass joint storage unit. Because the inner diameter of the bottom of the guide cylinder formed by four guide plates is larger than the outer diameter of the top of the glass ground glass joint storage unit, the inner wall of the guide plate contacts the outside of the glass ground glass joint storage unit, expanding the inner diameter of the guide cylinder and stretching the elastic tightening member. The elastic tightening member moves downwards along the outer wall of the glass ground glass joint storage unit, binding the sealing film to the top of the glass ground glass joint storage unit to form a seal. During this process, the adhesive properties of the sealing film, combined with the elastic tightening member, ensure the sealing effect of the glass ground glass joint storage unit, thus avoiding reagent evaporation and waste due to seal failure, and further preventing changes in reagent concentration that could affect experimental reproducibility.

[0016] This invention uses an elastic tightening member to bind the sealing film to the top of the glass ground glass storage component during the downward movement of the cover plate assembly. The elastic tightening member applies a downward pulling force to the seal, which improves the stability of the connection between the glass ground glass plug at the top of the glass ground glass storage component and the glass ground glass storage component, and avoids displacement due to temperature fluctuations or mechanical vibration.

[0017] This invention fixes the sealing film to a film receiving frame and pushes the cover plate body vertically downward. During the downward movement, the bottom of the film receiving frame abuts against the top of the protective frame. As the cover plate body continues to move downward, it pushes the protective frame to compress the first elastic element. As the protective frame moves downward, the blade of the cross-cutting knife gradually protrudes. The cross-cutting knife cuts the sealing film on the film receiving frame into the corresponding number of glass ground glass storage components. When the first elastic element is compressed to its minimum, the film receiving frame and the supporting sliding frame move upward along the inner wall of the cover plate body to compress the second elastic element. This causes the sealing assembly to move downward with the cover plate body and bind the cut sealing film to the top of the glass ground glass storage component to achieve a sealing treatment. During this process, the cross-cutting knife cuts the sealing film, leaving the cut sealing film in a relaxed state, ensuring that the cut sealing film can be bound to the top of the glass ground glass storage component. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the side structure of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the cover plate assembly and storage box of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the storage box and cover assembly of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the external structure of the sealing assembly of the present invention; Figure 7 This is a schematic diagram of the mating structure of the cover plate assembly and the sealing assembly of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the cutting component and the cover plate component of the present invention.

[0019] In the diagram: 1. Storage box; 2. Slitting assembly; 21. Cross slitting blade; 22. First elastic element; 23. Protective frame; 3. Support assembly; 31. Support sliding frame; 32. Film receiving frame; 33. Film pressure strip; 34. Second elastic element; 4. Cover plate assembly; 41. Cover plate body; 42. Connector; 43. Sliding mandrel; 44. Limiting through groove; 45. Guide receiving element; 46. Limiting groove; 47. Vertical sliding groove; 48. C-shaped positioning element; 5. Sealing assembly; 51. Guide plate; 52. Elastic tightening element; 6. Glass ground joint storage element; 7. Sponge pad. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 As shown, the present invention provides an anti-evaporation reagent storage device, including a storage box 1, and further comprising: Cover assembly 4 is disposed on storage box 1; Sealing assembly 5 is installed on the top of the inner wall of cover assembly 4; Support component 3 is disposed on cover plate component 4; Slitting component 2 is disposed inside storage box 1; The sponge pad 7 is placed inside the storage box 1. A circular groove is opened in the middle of the sponge pad 7, and the glass ground joint storage piece 6 is placed in the circular groove. The sealing assembly 5 includes a guide plate 51 hinged to the top of the inner wall of the cover plate assembly 4. There are four guide plates 51, which together form a guide cylinder that is wide at both ends and narrow in the middle. An elastic tightening member 52 is provided in the middle of the guide cylinder. The guide tube and the glass ground joint storage component 6 are kept coaxial and vertical. The outer diameter of the top of the glass ground joint storage component 6 gradually decreases from top to bottom and then gradually increases. The inner diameter of the bottom of the guide tube is larger than the outer diameter of the top of the glass ground glass storage component 6; The glass ground joint storage component 6 is placed inside the sponge pad 7, and the sealing film is placed on the support component 3. The sealing film is attached to the top of the glass ground joint storage component 6 by the cover plate component 4, the support component 3 and the sealing film moving downward. As the cover plate component 4 continues to move downward, the cutting component 2 cuts the sealing film. The elastic tightening component 52 is guided by the guide plate 51 to move downward along the outer wall of the glass ground joint storage component 6 to bind the film to the upper end of the glass ground joint storage component 6. The film is made of paraffin-polyethylene and is an adhesive film.

[0022] The glass ground glass joint storage unit 6 containing reagents is placed in the circular groove of the sponge pad 7, and then the sealing film is placed on the support assembly 3. The cover plate assembly 4 is kept vertical with the storage box 1. The cover plate assembly 4, support assembly 3, and sealing film are pushed down along the storage box 1. As the cover plate assembly 4 moves down, the sealing film contacts the top of the glass ground glass joint storage unit 6. The sealing film is then cut by the cutting assembly 2 to form a number of rectangular blocks corresponding to the glass ground glass joint storage unit 6. Since the inner diameter of the bottom of the guide cylinder formed by the four guide plates 51 is larger than the outer diameter of the top of the glass ground glass joint storage unit 6, and the outer diameter of the top of the glass ground glass joint storage unit 6 is larger than the outer diameter of the top of the glass ground glass joint storage unit 6, the outer diameter of the top of the glass ground glass joint storage unit 6 is... The diameter gradually decreases, thus the inner wall of the guide plate 51 contacts the outside of the glass ground glass joint storage unit 6, expanding the inner diameter of the guide tube and stretching the elastic tightening member 52. The elastic tightening member 52 moves downward along the outer wall of the glass ground glass joint storage unit 6, binding the sealing film to the top of the glass ground glass joint storage unit 6 to form a seal. During this process, due to the adhesiveness of the sealing film and its cooperation with the elastic tightening member 52, the sealing film is evenly adhered to the outside of the glass ground glass joint storage unit 6, ensuring the sealing effect of the glass ground glass joint storage unit 6, avoiding the waste caused by reagent evaporation due to seal failure, and further avoiding changes in reagent concentration, which would affect the reproducibility of the experiment.

[0023] Simultaneously, as the cover assembly 4 moves downward, the sealing film is bound to the top of the glass ground glass storage unit 6 by the elastic tightening member 52. The elastic tightening member 52 applies a downward pulling force to the seal, improving the stability of the connection between the glass ground glass plug at the top of the glass ground glass storage unit 6 and the glass ground glass storage unit 6, and avoiding displacement due to temperature fluctuations or mechanical vibration, until the cover assembly 4 is placed on top of the storage box 1, realizing the storage of reagents.

[0024] like Figure 2 and Figure 3 As shown, the cover assembly 4 includes a cover body 41, and a guide receiving part 45 is fixedly installed on the side of the storage box 1. A limiting groove 46 is opened on the guide receiving part 45, and a vertical sliding groove 47 is opened inside the limiting groove 46. A connector 42 is fixedly mounted on the side of the cover plate body 41. The cover plate body 41 slides in the limiting groove 46 through the connector 42. The lower end of the connector 42 slides in the vertical slide groove 47 through the sliding spindle 43. The limiting groove 46 is Y-shaped. When the cover plate body 41 is pulled to move upward along the vertical slide groove 47 and the limiting groove 46 to the top via the sliding spindle 43 and the connecting piece 42, the cover plate body 41 is pushed to make the connecting piece 42 and the sliding spindle 43 rotate around the central axis, and the side of the connecting piece 42 overlaps with the side of the upper end of the limiting groove 46. A C-shaped positioning element 48 is slidably provided on the guide receiving part 45, and a limiting through groove 44 adapted to the C-shaped positioning element 48 is provided at the lower end of the connecting part 42. When the connector 42 moves vertically along the limiting groove 46 to the bottom, the end of the C-shaped positioning member 48 coincides with the limiting through groove 44.

[0025] By lifting the cover body 41, the connector 42 and the sliding spindle 43 move upward along the limiting groove 46 and the vertical slide groove 47. When the connector 42 and the sliding spindle 43 move to the top, the cover body 41 is rotated through the connector 42 around the sliding spindle 43 as the central axis, so that the side of the connector 42 overlaps one end of the inner wall of the limiting groove 46, making the cover body 41 and the support assembly 3 in an inclined state, which facilitates the placement of the sealing film on the support assembly 3. At this time, the top of the storage box 1 is in the open state, and the glass ground glass storage piece 6 containing reagents can be placed in the round groove at the top of the sponge pad 7. After placement, the connector 42 is in a vertical state by rotating the cover body 41 in the opposite direction, and moves downward along the limiting groove 46 and the vertical slide groove 47 to the bottom. The cover body 41 covers the top of the storage box 1. At this time, the C-shaped positioning piece 48 can be pushed so that its end is engaged in the limiting through groove 44, and the cover body 41 is fixedly connected to the storage box 1.

[0026] like Figure 5 and Figure 7 As shown, the support assembly 3 includes a support sliding frame 31 that slides on the inner wall of the cover plate body 41, and a film receiving frame 32 for receiving the sealing film is fixedly installed at the bottom of the support sliding frame 31. The inner wall of the cover plate body 41 is provided with a second elastic element 34 that pushes the supporting sliding frame 31 downward; The top two ends of the film receiving frame 32 are provided with film pressure strips 33, and the film pressure strips 33 and the film receiving frame 32 are connected by magnetic attraction; The sealing film is placed on the film receiving frame 32 and pressed tightly by the film pressure strip 33.

[0027] The cover body 41 is detached from the top of the storage box 1, making the cover body 41 tilted. The two film strips 33 are removed and the sealing film is placed on the top of the film receiving frame 32. The two film strips 33 are then placed at both ends of the top of the film receiving frame 32. Through the magnetism between the film strips 33 and the film receiving frame 32, the two ends of the sealing film are clamped between the film strips 33 and the film receiving frame 32. When the cover assembly 4 is placed on the top of the storage box 1, the sealing assembly 5 can bind the sealing film to the top of the glass ground glass storage component 6.

[0028] like Figure 8As shown, the slitting assembly 2 includes a cross-shaped slitting blade 21 fixed inside the storage box 1, a protective frame 23 slidably disposed on the inner wall of the storage box 1, and a first elastic member 22 that pushes the protective frame 23 upward on the inner wall of the storage box 1. The protective frame 23 has a first through groove in the middle that is adapted to the cross-shaped slitting blade 21. Initially, the top of the protective frame 23 is higher than the blade of the cross-shaped slitting blade 21 under the action of the first elastic member 22. The elastic coefficient of the second elastic element 34 is greater than that of the first elastic element 22, and the middle part of the film receiving frame 32 is provided with a second through groove that is adapted to the cross slitting blade 21. When the cover plate body 41 moves vertically downward, the film receiving frame 32 abuts against the protective frame 23 and pushes the protective frame 23 downward. The sealing film on the film receiving frame 32 is cut by the cross-cutting blade 21 until the first elastic element 22 is compressed to its minimum. As the cover plate body 41 continues to move downward, the support sliding frame 31 moves upward along the cover plate body 41 and compresses the second elastic element 34.

[0029] The sealing film is fixed on the film receiving frame 32, and the cover plate body 41 is pushed vertically downward. During the downward movement, the bottom of the film receiving frame 32 abuts against the top of the protective frame 23. As the cover plate body 41 continues to move downward, it pushes the protective frame 23 to compress the first elastic element 22. As the protective frame 23 moves downward, the blade of the cross-cutting blade 21 gradually protrudes. The cross-cutting blade 21 cuts the sealing film on the film receiving frame 32 into the corresponding number of pieces for the glass ground joint storage piece 6. When the first elastic element 22 is compressed to its minimum, the film receiving frame 32 and the supporting sliding frame 31 move upward along the inner wall of the cover plate body 41 to compress the second elastic element 34. This causes the sealing assembly 5 to move downward with the cover plate body 41 and bind the cut sealing film to the top of the glass ground joint storage piece 6 to achieve a seal. During this process, the cross-cutting blade 21 cuts the sealing film, so that the cut sealing film is in a relaxed state, ensuring that the cut sealing film can be bound to the top of the glass ground joint storage piece 6.

[0030] Working principle and usage process of this invention: By lifting the cover body 41, the connecting piece 42 and the sliding spindle 43 move upward along the limiting groove 46 and the vertical sliding groove 47. When the connecting piece 42 and the sliding spindle 43 reach the top, the cover body 41 is rotated via the connecting piece 42 about the sliding spindle 43 as the central axis, so that the side of the connecting piece 42 overlaps one end of the inner wall of the limiting groove 46, making the cover body 41 and the support assembly 3 tilted, thus facilitating the placement of the sealing film on the support assembly 3. At this time, the top of the storage box 1 is in the open state. Then, the glass ground glass storage unit 6 containing reagents can be placed in the round groove on the top of the sponge pad 7, the cover body 41 can be removed from the top of the storage box 1, so that the cover body 41 is tilted, the two film strips 33 can be removed and the sealing film can be placed on the top of the film receiving frame 32, and then the two film strips 33 can be placed at both ends of the top of the film receiving frame 32 respectively. Through the magnetism between the film strips 33 and the film receiving frame 32, the two ends of the sealing film are clamped between the film strips 33 and the film receiving frame 32. The sealing film is fixed on the film receiving frame 32, and the cover plate body 41 is pushed vertically downward. During the downward movement, the bottom of the film receiving frame 32 abuts against the top of the protective frame 23. As the cover plate body 41 continues to move downward, it pushes the protective frame 23 to compress the first elastic member 22. During the downward movement of the protective frame 23, the blade of the cross-cutting knife 21 gradually protrudes. The cross-cutting knife 21 cuts the sealing film on the film receiving frame 32 into the corresponding number of glass ground joint storage pieces 6. When the first elastic member 22 is compressed to its minimum, the film receiving frame 32 and the supporting sliding frame 31 move upward along the inner wall of the cover plate body 41 to compress the second elastic member 34. As the cover plate body 41 moves downward, the sealing film contacts the top of the glass ground joint storage component 6. Since the inner diameter of the bottom of the guide cylinder formed by the four guide plates 51 is larger than the outer diameter of the top of the glass ground joint storage component 6, and the outer diameter of the top of the glass ground joint storage component 6 gradually decreases from top to bottom, the inner wall of the guide plate 51 contacts the outside of the glass ground joint storage component 6, thereby expanding the inner diameter of the guide cylinder and stretching the elastic tightening member 52. The elastic tightening member 52 moves downward along the outer wall of the glass ground joint storage component 6, binding the sealing film to the top of the glass ground joint storage component 6 to form a seal. During this process, due to the adhesiveness of the sealing film and its cooperation with the elastic tightening member 52, the sealing film is evenly adhered to the outside of the glass ground joint storage component 6, ensuring the sealing effect of the glass ground joint storage component 6.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-evaporative reagent storage device comprising a storage tank (1), characterized in that, Also include: Cover plate assembly (4), the cover plate assembly (4) is provided on the storage box (1); Sealing assembly (5), the sealing assembly (5) is installed in the top of the inner wall of the cover plate assembly (4); Support assembly (3), the support assembly (3) is provided on the cover plate assembly (4); Slitting assembly (2), the slitting assembly (2) is provided in the inside of the storage box (1); Sponge pad (7), the sponge pad (7) is placed in the inside of the storage box (1), the middle part of the sponge pad (7) is provided with a circular groove, and the glass mouth storage element (6) is placed in the circular groove; Wherein, the sealing assembly (5) includes a guide plate (51) hinged to the top of the inner wall of the cover plate assembly (4), the guide plate (51) has four, the four guide plates (51) form a guide cylinder with wide ends and narrow middle, the middle part of the guide cylinder is provided with an elastic tightening member (52); The guide cylinder and the glass mouth storage element (6) are coaxial and vertical, the outer diameter of the top end of the glass mouth storage element (6) gradually decreases from top to bottom, and gradually increases accordingly; The inner diameter of the bottom end of the guide cylinder is greater than the outer diameter of the top end of the glass mouth storage element (6).

2. The anti-evaporative reagent storage device of claim 1, wherein: The glass mouth storage element (6) is placed in the inside of the sponge pad (7), the sealing film is placed on the support assembly (3), the cover plate assembly (4), the support assembly (3) and the sealing film are moved downward, the sealing film is adhered to the top end of the glass mouth storage element (6), the sealing film is cut by the slitting assembly (2) as the cover plate assembly (4) continues to move downward, the elastic tightening member (52) is guided by the guide plate (51) to move along the outer wall of the glass mouth storage element (6) to bind the film to the upper end of the glass mouth storage element (6).

3. The anti-evaporative reagent storage device of claim 1, wherein: The cover plate assembly (4) includes a cover plate body (41), the side of the storage box (1) is fixed with a guide receiving member (45), the guide receiving member (45) is provided with a limiting groove (46), and the inside of the limiting groove (46) is provided with a vertical sliding groove (47); The side of the cover plate body (41) is fixed with a connecting piece (42), the cover plate body (41) slides in the limiting groove (46) through the connecting piece (42), and the lower end of the connecting piece (42) slides in the vertical sliding groove (47) through the sliding core shaft (43).

4. The anti-evaporative reagent storage device of claim 3, wherein: The limiting groove (46) is "Y" shaped, the cover plate body (41) is pulled to move upward along the vertical sliding groove (47) and the limiting groove (46) to the top end through the sliding core shaft (43) and the connecting piece (42), at this time, the connecting piece (42) and the sliding core shaft (43) are rotated as the central axis by pushing the cover plate body (41), and the side of the connecting piece (42) is overlapped on the side of the top end of the limiting groove (46).

5. The anti-evaporative reagent storage device of claim 3, wherein: The guide receiving member (45) is slidably provided with a C-shaped positioning member (48), and the lower end of the connecting piece (42) is provided with a limiting through slot (44) matched with the C-shaped positioning member (48); When the connecting piece (42) moves vertically to the bottom end along the limiting groove (46), the end of the C-shaped positioning member (48) coincides with the limiting through slot (44).

6. The anti-evaporative reagent storage device of claim 3, wherein: The support assembly (3) comprises a support sliding frame (31) sliding in the inner wall of the cover plate body (41), and the bottom of the support sliding frame (31) is fixed with a film receiving frame (32) receiving the sealing film; The inner wall of the cover plate body (41) is provided with a second elastic member (34) upwardly supporting the support sliding frame (31).

7. The anti-evaporative reagent storage device of claim 6, wherein: The two ends of the top of the film receiving frame (32) are provided with film pressing strips (33), and the film pressing strips (33) and the film receiving frame (32) are connected by magnetic attraction; The sealing film placed on the film receiving frame (32) is pressed by the film pressing strips (33).

8. The anti-evaporative reagent storage device of claim 6, wherein: The slitting assembly (2) comprises a cross-shaped slitting cutter (21) fixed in the storage box (1), and the inner wall of the storage box (1) is slidingly provided with a protection frame (23), and the inner wall of the storage box (1) is provided with a first elastic member (22) upwardly supporting the protection frame (23).

9. The anti-evaporative reagent storage device of claim 8, wherein: The middle part of the protection frame (23) is provided with a first through slot matched with the cross-shaped slitting cutter (21), and initially the top of the protection frame (23) is higher than the blade of the cross-shaped slitting cutter (21) under the action of the first elastic member (22).

10. The anti-evaporative reagent storage device of claim 9, wherein: The elastic coefficient of the second elastic member (34) is greater than that of the first elastic member (22), and the middle part of the film receiving frame (32) is provided with a second through slot matched with the cross-shaped slitting cutter (21); When the cover plate body (41) vertically moves downward, the film receiving frame (32) abuts against the protection frame (23) and pushes the protection frame (23) to move downward, the sealing film on the film receiving frame (32) is cut by the cross-shaped slitting cutter (21), until the first elastic member (22) is compressed to the minimum, and with the continuous downward movement of the cover plate body (41), the support sliding frame (31) moves upward along the cover plate body (41) to compress the second elastic member (34).

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